A forming tool for a leather article

Abstract

This utility model discloses a molding die for leather products, relating to the field of die-cutting technology. It includes a base plate with a steel blade for punching on it. A cavity is formed within the base plate, and a top plate that can move up and down is located inside the cavity. The base plate also has a pressure plate located around the steel blade and an ejector pin positioned within the cavity area formed by the steel blade. The base plate has a first through hole corresponding to the pressure plate and a second through hole corresponding to the ejector pin, both of which communicate with the cavity. The pressure plate is connected to the top plate through the first through hole, and the ejector pin is connected to the top plate through the second through hole. The pressure plate can pre-position the leather to be punched, thus preventing displacement of the leather during punching and affecting accuracy, improving the punching quality of the finished leather product, and reducing the occurrence of defective products. Simultaneously, the ejector pin ejects the finished leather product remaining in the cavity formed by the steel blade after punching, enabling rapid demolding and collection of the finished leather product.

Description

Technical Field

[0001] This utility model relates to the field of die-cutting technology, and in particular to a forming die for leather products. Background Technology

[0002] Leather product forming dies are specialized molds used in the leather processing industry for precise cutting and shaping of leather parts. They are widely used in the mass production of bags, shoes, leather goods, and other products. Their core structure consists of a high-hardness cutting edge and a supporting base plate. The cutting edge is typically made of high-speed steel, cemented carbide, or carbon steel, and after quenching treatment, it possesses excellent wear resistance and cutting precision, ensuring clean, burr-free leather edges. The die shape is customized according to design requirements, covering various contours such as round, square, and irregular shapes, making it an indispensable key tool in the standardized production of leather products.

[0003] In production, the forming die applies pressure through stamping equipment, causing the blade to cut into the leather raw material, completing the cutting in one step, significantly improving processing efficiency and part consistency. However, after stamping, the finished leather product often remains stuck in the cavity formed by the steel blade due to its tight fit with the inner wall of the steel blade. This often requires manual demolding, which is inefficient, affects the continuous production of leather, and also poses a safety hazard of being cut by the steel blade.

[0004] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a molding die for leather products, comprising a base plate, on which a steel blade for punching is disposed, a cavity is formed inside the base plate, and a top plate that can move up and down is disposed inside the cavity. The base plate is also provided with a pressure plate located around the steel blade and a top post disposed in the cavity area formed by the steel blade. The base plate is provided with a first through hole corresponding to the pressure plate and a second through hole corresponding to the top post, and both the first through hole and the second through hole are connected to the cavity. The pressure plate is connected to the top plate through the first through hole, and the top post is connected to the top plate through the second through hole.

[0007] As a further embodiment of this utility model: the lower surface of the pressure plate is lower than the bottom end of the steel knife.

[0008] As a further embodiment of this utility model: an elastic pressing member is provided between the top plate and the top wall of the cavity, and the elastic pressing member generates a force that pushes the top plate downward.

[0009] As a further embodiment of this utility model: a positioning post is provided on the bottom wall of the cavity, and a positioning hole corresponding to the positioning post is opened on the top plate. After the positioning post passes through the positioning hole, it abuts against the inner top wall of the cavity, and at the same time, an elastic pressing member is sleeved on the positioning post.

[0010] As a further embodiment of this utility model: the lower surface of the top material column is parallel to or slightly lower than the bottom end of the steel knife.

[0011] As a further embodiment of this utility model: the pressure plate is provided in four pieces, which are located at the four corners of the outer periphery of the steel knife.

[0012] As a further embodiment of the present invention: the substrate includes an upper plate and a lower plate, the upper plate and the lower plate are spliced ​​together to form a cavity, the lower surface of the lower plate is provided with a mounting groove, and the steel knife is embedded in the mounting groove;

[0013] Bolts are screwed into the four corners of the upper plate, and fixing grooves corresponding to the bolts are opened at the four corners of the lower plate. The bolts are screwed into the fixing grooves.

[0014] Compared with the prior art, the beneficial effects of this technical solution are as follows: When the substrate is pressed down and the steel blade punches the leather, the pressure plate set on the outer periphery of the steel blade first contacts and presses down the leather below during the pressing process. As the substrate is pressed down, the pressure plate shrinks into the cavity through the first through hole and pushes the top plate to move up and squeeze the elastic pressing member. At the same time, the ejector column moves up with the top plate through the second through hole. At this time, the steel blade completes the punching of the leather during the pressing. Then, during the process of the substrate driving the steel blade to move up, the elastic restoring force of the elastic pressing member forms a downward pushing force applied to the top plate, causing the top plate, pressure plate and ejector column to move down, thereby causing the ejector column in the cavity area formed by the steel blade to push out the finished leather product in the cavity.

[0015] In summary, this invention uses a pressure plate to pre-position the leather to be punched, thereby preventing displacement of the leather during punching and affecting accuracy, improving the punching quality of the finished leather product, and reducing the occurrence of defective products. At the same time, the ejector column ejects the finished leather product that remains in the cavity formed by the steel blade after punching, which can quickly complete the demolding and collection of the finished leather product without manual assistance, improving production safety, enabling continuous production of leather punching, and improving production efficiency.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0021] Figure 4 This is an exploded structural diagram of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the substrate of this utility model;

[0023] The corresponding labels in the attached diagram are explained as follows:

[0024] 1. Base plate; 11. Upper plate; 111. Bolt; 12. Lower plate; 121. Mounting groove; 122. Fixing groove; 2. Steel knife; 3. Cavity; 4. Top plate; 41. Positioning hole; 5. Pressure plate; 6. Top post; 7. First through hole; 8. Second through hole; 9. Elastic top pressing component; 10. Positioning post. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-5 A molding die for leather products includes a base plate 1, on which a steel blade 2 for punching is disposed. A cavity 3 is formed inside the base plate 1, and a top plate 4 that can move up and down is disposed inside the cavity 3. The base plate 1 also has a pressure plate 5 located on the outer periphery of the steel blade 2 and a pusher post 6 disposed in the cavity area formed by the steel blade 2. The base plate 1 has a first through hole 7 corresponding to the pressure plate 5 and a second through hole 8 corresponding to the pusher post 6, and both the first through hole 7 and the second through hole 8 are connected to the cavity 3. The pressure plate 5 is connected to the top plate 4 through the first through hole 7, and the pusher post 6 is connected to the top plate 4 through the second through hole 8.

[0027] Specifically, when the substrate 1 is pressed down, driving the steel blade 2 to punch the leather, the lower surface of the pressure plate 5 set on the outer periphery of the steel blade 2 is lower than the bottom end of the steel blade 2 during the pressing process. Therefore, the pressure plate 5 can first contact and press down the leather below. As the substrate 1 is pressed down, the pressure plate 5 retracts into the cavity 3 through the first through hole 7 and pushes the top plate 4 upward. At the same time, the ejector column 6 moves upward with the top plate 4 through the second through hole 8. At this time, the steel blade 2 completes the punching of the leather during the pressing. Then the substrate 1 drives the steel blade 2 to move upward. During the upward movement, the top plate 4, pressure plate 5 and ejector column 6 move downward under the influence of gravity, thereby causing the ejector column 6 located in the cavity area formed by the steel blade 2 to push out the finished leather product in the cavity.

[0028] In summary, this invention uses the pressure plate 5 to pre-position the leather to be punched, thereby preventing displacement of the leather during punching and affecting accuracy, improving the punching quality of the finished leather product, and reducing the occurrence of defective products. At the same time, the ejector column 6 ejects the finished leather product that remains in the cavity formed by the steel blade 2 after punching, which can quickly complete the demolding and collection of the finished leather product without manual assistance, improving production safety, enabling continuous production of leather punching, and improving production efficiency.

[0029] Please see Figure 3 and Figure 4 Based on the above embodiments, it is further proposed that an elastic pressing member 9 is provided between the top plate 4 and the top wall of the cavity 3, and the elastic pressing member 9 generates a force that pushes the top plate 4 downward.

[0030] Specifically, during the process of the steel blade 2 punching the leather and the substrate 1 moving upward, the top plate 4 was previously pushed upward by the pressure plate 5, which formed a compression on the elastic top pressure member 9. This caused the elastic restoring force of the elastic top pressure member 9 to form a downward pushing force on the top plate 4. Therefore, when the substrate 1 moves upward, the top plate 4 will move downward within the cavity 3, thereby enabling the top material column 6 to push out the finished leather product from the cavity of the steel blade 2 more quickly and smoothly, preventing the finished leather product from remaining stuck in the cavity of the steel blade 2.

[0031] Please see Figure 3 and Figure 4 Based on the above embodiments, it is further proposed that a positioning post 10 is provided on the bottom wall of the cavity 3, and a positioning hole 41 corresponding to the positioning post 10 is provided on the top plate 4. After the positioning post 10 passes through the positioning hole 41, it abuts against the inner top wall of the cavity 3, and at the same time, the elastic pressing member 9 is sleeved on the positioning post 10.

[0032] Specifically, the elastic pressing member 9 is a spring, and the positioning post 10 passes through the positioning hole 41 and then through the interior of the elastic pressing member 9. The positioning post 10 facilitates the placement of the elastic pressing member 9 and prevents the position of the elastic pressing member 9 from changing. The top plate 4 is provided with a positioning hole 41 to avoid affecting the vertical displacement of the top plate 4 in the cavity 3.

[0033] Preferably, multiple elastic pressing members 9 and positioning posts 10 can be provided. Multiple elastic pressing members 9 are beneficial to provide a greater downward pushing force to the top plate 4.

[0034] Please see Figure 3 Based on the above embodiments, it is further proposed that the lower surface of the top material column 6 is parallel to or slightly lower than the bottom end of the steel knife 2; this can ensure that the top material column 6 can completely push out the finished leather product in the cavity of the steel knife 2.

[0035] Please see Figure 1 Based on the above embodiments, it is further proposed that the pressure plate 5 is provided with four pieces, which are located at the four corners of the outer periphery of the steel knife 2.

[0036] Specifically, by setting four pressure plates 5 at the four corners of the outer perimeter of the steel blade 2, the four pressure plates 5 can stably press and restrict the position of the leather to be punched before the steel blade 2 punches the leather, thus improving the effect of pre-pressing the leather to be punched.

[0037] More preferably, the ejector pins 6 are provided with multiple pins, which can ensure that all parts of the finished leather product are subjected to ejection force during ejection, so that the finished leather product can be ejected as a whole at the same time, avoiding the finished leather product from tilting during demolding and causing secondary contact with the steel blade 2 and damage.

[0038] Please see Figures 3-5 Based on the above embodiments, it is further proposed that the substrate 1 includes an upper plate 11 and a lower plate 12. The upper plate 11 and the lower plate 12 are spliced ​​together to form a cavity 3. The lower surface of the lower plate 12 is provided with a mounting groove 121, and the steel knife 2 is embedded in the mounting groove 121.

[0039] Bolts 111 are screwed at all four corners of the upper plate 11, and fixing grooves 122 corresponding to the bolts 111 are opened at the four corners of the lower plate 12. The bolts 111 are screwed into the fixing grooves 122.

[0040] The substrate 1 is divided into an upper plate 11 and a lower plate 12, and the cavity 3 is formed after the upper plate 11 and the lower plate 12 are assembled and spliced ​​to facilitate the setting of the top plate 4, the pressure plate 5 and the top material column 6 in the cavity 3. The upper plate 11 is screwed to the fixing groove 122 on the lower plate 12 by bolts 111, which facilitates the disassembly and assembly of the upper plate 11 and the lower plate 12. The upper plate 11 also has grooves at the four corners for installing bolts 111.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A forming die for leather products, characterized in that, The system includes a substrate (1), on which a steel blade (2) for punching is provided. A cavity (3) is provided inside the substrate (1), and a top plate (4) that can move up and down is provided inside the cavity (3). A pressure plate (5) located on the outer periphery of the steel blade (2) and a top post (6) provided in the cavity area enclosed by the steel blade (2) are also provided on the substrate (1). A first through hole (7) corresponding to the pressure plate (5) and a second through hole (8) corresponding to the top post (6) are provided on the substrate (1). The first through hole (7) and the second through hole (8) are both connected to the cavity (3). The pressure plate (5) is connected to the top plate (4) through the first through hole (7), and the top post (6) is connected to the top plate (4) through the second through hole (8).

2. The forming die for leather products according to claim 1, characterized in that, The lower surface of the pressure plate (5) is lower than the bottom of the steel knife (2).

3. The forming die for leather products according to claim 2, characterized in that, An elastic pressing member (9) is provided between the top plate (4) and the top wall of the cavity (3), and the elastic pressing member (9) generates a force that pushes the top plate (4) downward.

4. The forming die for leather products according to claim 3, characterized in that, The cavity (3) has a positioning post (10) on its inner bottom wall and a positioning hole (41) corresponding to the positioning post (10) on its top plate (4). The positioning post (10) passes through the positioning hole (41) and abuts against the inner top wall of the cavity (3). At the same time, the elastic pressing member (9) is sleeved on the positioning post (10).

5. The forming die for leather products according to claim 4, characterized in that, The lower surface of the top column (6) is parallel to or slightly lower than the bottom end of the steel knife (2).

6. The forming die for leather products according to claim 5, characterized in that, The pressure plate (5) is provided in four pieces, which are located at the four corners of the outer periphery of the steel knife (2).

7. The forming die for leather products according to claim 6, characterized in that, The substrate (1) includes an upper plate (11) and a lower plate (12). The upper plate (11) and the lower plate (12) are spliced ​​together to form a cavity (3). The lower surface of the lower plate (12) is provided with a mounting groove (121). The steel knife (2) is embedded in the mounting groove (121). The upper plate (11) is screwed with bolts (111) at each of the four corners, and the lower plate (12) is provided with fixing grooves (122) corresponding to the bolts (111) at each of the four corners. The bolts (111) are screwed into the fixing grooves (122).

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