A SEPARATABLE LOWER MOLD OF STEEL STRAPPING MACHINE WITHOUT USING JOINT

Abstract

The steel strapping machine without using joint currently available from the market has three shortcomings. Firstly, packages cannot be strapped tightly. Secondly, a steel strap may get caught on a lower mold when the lower mold is taken out from underside of the steel strap. Thirdly, the strapping machine is not available for small packages. To overcome the shortcomings of the prior arts, the present disclosure proposes a separatable lower mold of the steel strapping machine without using a joint, which is formed as two parts being able to be closed together or separated from each other. The separatable lower mold has advantages that packages can be strapped tightly, the steel strap will not get caught on the lower mold when the lower mold is taken out from the underside of the steel strap and it is possible for the strapping machine to strap small packages.

Claims

1. A steel strapping machine without using joint, comprising: a mold, including an upper mold and a lower mold, which cooperate with each other to shear a steel strap so as to generate a notch, wherein: the lower mold is formed as a separatable lower mold which is capable of being opened or closed; the separatable lower mold is closed before a joint is made, and is opened after the joint is made so that the lower mold is removed away from the steel strap.

2. According to the steel strapping machine without using joint of claim 1, wherein, the lower mold comprises a left part of the lower mold and a right part of the lower mold, which are capable of being separated from each other or closed together.

3. According to the steel strapping machine without using joint of claim 1, further comprising a base and a feed roller, wherein the feed roller and the mold are mounted on the base, and the base is capable of moving the feed roller and the mold up and down.

4. According to the steel strapping machine without using joint of claim 2, wherein, each of the left part of the lower mold and the right part of the lower mold is provided with a cutter edge.

5. According to the steel strapping machine without using joint of claim 4, wherein, in the state that the left part of the lower mold and the right part of the lower mold are closed together, the cutter edge of the left part of the lower mold and that of the right part of the lower mold keep a certain distance from each other, and cutter edge surfaces of both the cutter edges are disposed towards a center of the steel strap.

6. According to the steel strapping machine without using joint of claim 5, wherein, the notch of the steel strap is located between the cutter edge of the left part of the lower mold and that of the right part of the lower mold, after the notch is generated.

7. According to the steel strapping machine without using joint of claim 1, wherein, each of the left part of the lower mold and the right part of the lower mold is provided with a blade.

8. According to the steel strapping machine without using joint of claim 7, wherein, in the state that the left part of the lower mold and the right part of the lower mold are closed together, cutter edge surface of the blade on the left part of the lower mold and that of the blade on the right part of the lower mold keep a certain distance from each other.

9. According to the steel strapping machine without using joint of claim 8, wherein, the cutter edge surface of the blade on the left part of the lower mold and that of the blade on the right part of the lower mold are disposed towards a center of the steel strap.

10. According to the steel strapping machine without using joint of claim 8, wherein, the notch of the steel strap is located between the blade on the left part of the lower mold and that on the right part of the lower mold, after the notch is generated.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0006] FIG. 1 is a global schematic diagram showing a specific structure of the present disclosure.

[0007] FIG. 2 is a schematic diagram showing a partial sectional view of the specific structure of the present disclosure.

[0008] FIG. 3 is a schematic diagram showing that the base 7 moves downwards in the present disclosure.

[0009] FIG. 4 is a schematic diagram showing that the feed roller 4 is rotated in a reverse direction to pull the steel strap 6 outwards in the present disclosure.

[0010] FIG. 5 is a schematic diagram showing that the upper mold 1 is moved downwards to shear the steel strap 6 to generate a notch and make a joint in the present disclosure.

[0011] FIG. 6 is a schematic diagram showing that the upper mold 1 is raised after the joint is made in the present disclosure.

[0012] FIG. 7 is a schematic diagram showing that the left part of lower mold 2 and the right part of lower mold 3 are separated towards the left and right sides respectively, being taken out from underside of the steel strap 6 in the present disclosure.

[0013] FIG. 8 shows a schematic diagram showing that the base 7 is moved upwards to the initial position in the present disclosure.

[0014] FIG. 9 shows a schematic diagram showing that the left part of lower mold 2 and the right part of lower mold 3 are closed towards a central position and prepared for the next strapping in the present disclosure.

DETAILED DESCRIPTION

[0015] The present disclosure will be described in detail below by reference to specific structure. FIG. 1 and FIG. 2 show a lower mold of a steel strapping machine without using joint. The description relates to the following parts: an upper mold 1, a left part of lower mold 2, a right part of lower mold 3, feed roller 4, a base 7, a steel strap 6 and a package 5. Wherein, the upper mold 1, the left part of lower mold 2, the right part of lower mold 3 and the feed roller 4 are all mounted on the base 7, which can move up and down. Each of the upper mold 1, the left part of lower mold 2 and the right part of lower mold 3 has a cutter edge or a blade mounted with a cutter edge. The left part of lower mold 2 and the right part of lower mold 3 can be separated from each other or closed together. In the case that the left part of lower mold 2 and the right part of lower mold 3 are closed together, the upper mold 1 can be moved downwards and shear the steel strap together with the left part of lower mold 2 and the right part of lower mold 3, to generate a notch so as to make a joint.

[0016] As shown in FIG. 2, in the case that the strapping machine wants to strap the package 5, the left part of lower mold 2 and the right part of lower mold 3 are closed together, and the feed roller 4 is rotated in a forward direction so as to push the steel strap 6 to pass through an area between the upper mold and the lower mold. Upon an end of the steel strap 6 winds around the package 5 for one cycle and arrives the area between the upper mold and the lower mold again, two ends of the steel strap 6 are overlapped with each other and the feed roller 4 stops feeding the steel strap. As shown in FIG. 3, the base 7 moves the upper mold 1, the left part 2, the right part 3 and the feed roller 4 downwards from an initial position to a position where bottom surfaces of the left part of lower mold 2 and the right part of lower mold 3 come into contact with a top surface of the package 5. As shown in FIG. 4, the feed roller 4 is rotated in a reverse direction to pull the steel strap 6 outwards, so that the steel strap 6 tightly warps the package 5. As shown in FIG. 5, the upper lower 1 is moved downwards to shear the steel strap 6 together with the left part of lower mold 2 and the right part of lower mold 3, so as to generate a notch and make a joint. As shown in FIG. 6, after the joint is made, the upper mold 1 is moved upwards. As shown in FIG. 7, the left part of lower mold 2 and the right part of lower mold 3 are separated towards two sides of the steel strap 6 respectively, being taken out from underside of the steel strap 6. As shown in FIG. 8, the base 7 is moved upwards to the initial position. As shown in FIG. 9, the left part of lower mold 2 and the right part of lower mold 3 are closed together, and prepared for next strapping. Thus, one cycle of strapping procedure is completed.