A new leather punching die residue ejection mechanism

By designing a residual material ejection mechanism for leather punching dies, the problem of waste material blockage caused by uneven distribution of support columns was solved, achieving efficient blowing out and cleaning of residual material.

CN224423978UActive Publication Date: 2026-06-30DONGGUAN DACHUAN INTELLIGENT EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN DACHUAN INTELLIGENT EQUIPMENT CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-30

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Abstract

This utility model belongs to the field of leather punching technology, specifically relating to a new leather punching die residue ejection mechanism. It includes a base plate with two connecting strips integrally installed on the outer walls near both ends of the base plate. A mounting plate is installed on the surface between the two connecting strips. In use, the base plate is installed on the punching section of a belt punching machine, and then a panel is installed on the surface of the base plate, with the bottom of the panel contacting the top of the top strip. The leather item to be punched is placed on the panel, and the punching needle of the belt punching machine moves downwards. The punching needle passes through the leather item along a fixed trajectory and then into the through-hole of the panel. The residual leather item carried by the punching needle is then squeezed downwards into the air channel. An external air gun can then blow away the residual material in the air channel directly through an opening on one side of the air channel. Because the residual material is blown along the trajectory of the air channel, blockage during the blowing process is prevented.
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Description

Technical Field

[0001] This utility model belongs to the field of leather punching technology, specifically relating to a new leather punching die residue ejection mechanism. Background Technology

[0002] Leather punching machines utilize the crankshaft's rotation radius to achieve mechanical reciprocating motion, forming a punching function, thereby punching various desired hole shapes into materials such as leather. The leather punching machine first installs the raw materials to be punched on the work platform, inputs the punching position and size information through a computer, and then, driven by a power mechanism (usually pneumatic or hydraulic), the punching die quickly acts on the material to complete the punching operation. The entire process can be fully automated.

[0003] In traditional leather processing, leather products requiring structural support are often manufactured by drilling holes and then individually inserting support pillars. This process has significant limitations. Because the installation of the support pillars relies on manual, one-by-one operation, it's difficult to ensure even distribution and precise installation. This imprecise, dispersed layout of support pillars negatively impacts the subsequent air-blowing and waste removal process. During waste removal, the scattered support pillars disrupt the direction of the airflow, preventing the air from efficiently and effectively blowing away the waste, greatly increasing the risk of blockages. Utility Model Content

[0004] The purpose of this invention is to provide a novel material removal mechanism for leather punching dies, aiming to solve the problem that in traditional leather processing, for leather products requiring support structures, the method of drilling holes first and then individually inserting support pillars is often used. This process has significant limitations. Since the installation of support pillars relies on manual operation, it is difficult to ensure even distribution and precise installation. This imprecise, dispersed support pillar layout negatively impacts the subsequent air blowing and waste removal process. When cleaning up waste, the dispersed support pillars disrupt the direction of the airflow, preventing the airflow from concentrating and efficiently blowing out the waste, greatly increasing the risk of waste blockage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a new leather punching die residual material ejection mechanism, including a base plate, on the outer wall of the base plate near both ends respectively, two connecting strips are integrally installed, and a threaded hole is installed on the surface between the two connecting strips. The connecting strips and the panel are provided with matching threaded holes, and the connecting strips and the panel are fixedly connected by bolts.

[0006] A horizontal bar is integrally connected to the surface of the base plate, a guide bar is integrally connected to the surface of the horizontal bar, a top bar is integrally connected to the surface of the guide bar, and air grooves are provided on both sides of the horizontal bar.

[0007] As a novel material ejection mechanism for leather punching molds according to this utility model, preferably, sixteen horizontal bars are installed at equal intervals on the base plate, and the sixteen base plates are located between two connecting bars.

[0008] As a novel residual material ejection mechanism for leather punching molds according to this utility model, preferably, the guide strip has beveled surfaces on both sides, the bottom dimension of the guide strip is adapted to the surface dimension of the crossbar, and the top dimension of the guide strip is adapted to the bottom dimension of the top bar.

[0009] As a novel material ejection mechanism for leather punching molds according to this utility model, preferably, the top of the top bar is in active contact with the bottom of the panel.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] In operation, the base plate is installed on the punching section of the belt punching machine, and then the panel is installed on the surface of the base plate, with the bottom of the panel contacting the top of the top strip. The leather item to be punched is placed on the panel, and the punching needle of the belt punching machine is moved downwards. The punching needle will then pass through the leather item along a fixed trajectory and into the through-hole of the panel. The excess leather material carried by the punching needle will be squeezed downwards into the air channel. An external air gun can then be used to blow away the excess material in the air channel through an opening on one side. Because the excess material is blown along the trajectory of the air channel, blockage during the blowing process is prevented. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a top view of the structure provided for an embodiment of this application.

[0014] Figure 2 This is a bottom view of the structure provided for an embodiment of this application.

[0015] Figure 3 This is a schematic diagram of the base plate structure provided in an embodiment of this application.

[0016] Figure 4 This is a schematic diagram of the horizontal bar assembly structure provided in an embodiment of this application.

[0017] In the diagram: 1. Base plate; 2. Connecting strip; 3. Panel; 4. Horizontal bar; 5. Guide bar; 6. Top bar; 7. Air duct. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 The present invention provides the following technical solution: a new leather punching die residue ejection mechanism, including a base plate 1, two connecting strips 2 are integrally installed on the outer wall near both ends of the surface of the base plate 1, and a threaded hole is provided between the connecting strips 2 and the panel 3, and the connecting strips 2 and the panel 3 are fixedly connected by bolts.

[0020] When in use, the base plate 1 is installed in the processing area of ​​the leather punching machine, and then the panel 3 is installed on the surface of the base plate 1;

[0021] Place the perforated leather goods on panel 3 and start the leather punching machine. The punching mechanism on the leather punching machine will then move the punch towards the leather goods, and finally the punching mechanism will punch the corresponding holes on the leather goods as required.

[0022] A horizontal bar 4 is integrally connected to the surface of the base plate 1. A guide bar 5 is integrally connected to the surface of the horizontal bar 4. A top guide bar 6 is integrally connected to the surface of the guide bar 5. Air ducts 7 are provided on both sides of the horizontal bar 4.

[0023] A vent 7 is also provided between the horizontal strips 4 at both ends and the corresponding connecting strips 2. When punching, the leftover leather material of the product will fall into the vent 7 through the through hole of the panel 3, so as to facilitate subsequent air blowing.

[0024] Preferably, sixteen horizontal bars 4 are installed at equal intervals on the base plate 1, and the sixteen base plates 1 are located between two connecting bars 2.

[0025] Preferably, the guide strip 5 has beveled surfaces on both sides, the bottom dimension of the guide strip 5 is adapted to the surface dimension of the crossbar 4, and the top dimension of the guide strip 5 is adapted to the bottom dimension of the top bar 6.

[0026] Preferably, the top of the top strip 6 is in contact with the bottom of the panel 3.

[0027] After the horizontal bar 4, guide bar 5 and top bar 6 are assembled, they will form sixteen support structures at the bottom of the panel 3. During the punching process, the support structure composed of the horizontal bar 4, guide bar 5 and top bar 6 will effectively share the pressure applied during the punching process, thereby enhancing the overall strength.

[0028] In practical use, the base plate 1 is installed on the punching part of the belt punching machine, and then the panel 3 is installed on the surface of the base plate 1. At this time, the bottom of the panel 3 will contact the top of the top strip 6. Place the leather goods to be punched on the panel 3, start the belt punching machine and move the punching needle downward. In this way, the punching needle of the belt punching machine will pass through the leather goods along a fixed trajectory and then pass into the through hole of the panel 3. The excess leather goods carried by the punching needle will fall further down along the through hole. At this time, when the beveled surfaces on both sides of the crossbar 4 come into contact with the excess material, they will guide the excess material to fall into the air channel 7, and eventually the excess material will accumulate in the air channel 7.

[0029] At this point, the external air gun can be used to blow away the remaining material in the air duct 7 directly through the opening on one side of the air duct 7. Since the remaining material will be blown along the trajectory of the air duct 7, it can prevent the remaining material from becoming blocked during the blowing process.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel material ejection mechanism for leather punching dies, comprising a base plate (1), characterized in that, Two connecting strips (2) are integrally installed on the outer wall near both ends of the base plate (1). A threaded hole is installed on the surface between the two connecting strips (2). The connecting strips (2) and the panel (3) are provided with matching threaded holes. The connecting strips (2) and the panel (3) are fixedly connected by bolts. The surface of the base plate (1) is integrally connected with a horizontal bar (4), the surface of the horizontal bar (4) is integrally connected with a guide bar (5), the surface of the guide bar (5) is integrally connected with a top bar (6), and air troughs (7) are provided on both sides of the horizontal bar (4).

2. The novel leather punching die residue ejection mechanism according to claim 1, characterized in that: The horizontal bar (4) is installed at equal intervals on the base plate (1) in sixteen pieces, and the sixteen base plates (1) are located between two connecting bars (2).

3. The novel leather punching die residue ejection mechanism according to claim 1, characterized in that: The guide strip (5) has beveled surfaces on both sides. The bottom dimension of the guide strip (5) is adapted to the surface dimension of the horizontal strip (4). The top dimension of the guide strip (5) is adapted to the bottom dimension of the top strip (6).

4. The novel leather punching die residue ejection mechanism according to claim 1, characterized in that: The top of the top bar (6) is in active contact with the bottom of the panel (3).