Trimming die for product

Abstract

The utility model aims to solve the problem that the trimmed edge of the existing injection molding product is easy to crack. The product trimming die comprises an upper die structure and a lower die structure, and the upper die structure is correspondingly arranged over the lower die structure; the lower die structure is fixedly provided with a trimming plate used for trimming and cutting a glue port, and the trimming plate is provided with a trimming hole corresponding to a product to be processed in shape; the lower die structure is further provided with a concave hole corresponding to the trimming hole in the trimming plate. An elastic supporting structure is arranged in the concave hole, and the top of the elastic supporting structure is used for containing a to-be-machined product. And in addition, the product can be reset, so that the product is convenient to take and place.

Description

Technical Field

[0001] The utility model relates to the field of injection molding equipment, in particular to a trimming mold for a product. Background Art

[0002] In the injection molding or compression molding process, due to the small gap between the upper and lower molds and the presence of the injection port, burrs or sprues will appear on the edges of the molded product. Therefore, it is necessary to use a trimming tool to trim the edges of the product, such as the content shown in the patent with authorization announcement number CN218535461U. In existing trimming molds, the edges of the product fixed on the lower mold are usually trimmed by pressing down with an upper mold with a cutter. However, in this process, due to slight differences in the product during the injection molding process, including differences in thickness and edge boundaries, the product is prone to being squeezed and cracked during the trimming process. Therefore, there is a need for a trimming mold that can complete the trimming and is not prone to cracking the product. Summary of the Invention

[0003] The purpose of the utility model is to solve the deficiencies of the prior art and provide a trimming die for a product.

[0004] In order to solve the above problems, the present invention adopts the following solutions:

[0005] A trimming mold for a product includes an upper mold structure and a lower mold structure, wherein the upper mold structure is correspondingly arranged directly above the lower mold structure; a trimming plate for trimming and cutting glue is fixedly arranged on the lower mold structure, and the trimming plate is provided with trimming holes corresponding to the shape of the product to be processed; the lower mold structure is also provided with concave holes corresponding to the trimming holes on the trimming plate; an elastic support structure is provided in the concave hole, and the top of the elastic support structure is used to place the product to be processed.

[0006] Furthermore, the lower mold structure includes a lower mold plate, a base plate and a fixing rod; the lower mold plate is fixed above the base plate through the fixing rod; the position of the lower mold plate on the fixing rod is adjustable; and the trimming plate is fixed above the lower mold plate.

[0007] Furthermore, a concave hole is provided on the lower template, which passes through the lower template, and a raised structure is provided on the inner side of the concave hole, which surrounds the inner wall of the concave hole; the elastic support structure includes a support seat, a spring and a connecting rod corresponding to the bottom of the product; wherein the connecting rod is slidably arranged in the concave hole on the lower mold structure; the support seat is fixedly arranged at one end of the connecting rod close to the product; the spring is sleeved on the outer periphery of the sliding rod, and the two ends of the spring respectively resist the bottom of the support seat and the raised structure on the inner side of the concave hole of the lower template; a clamping joint is provided at the end of the connecting rod away from the support seat for resisting the raised structure on the inner side of the concave hole.

[0008] Furthermore, a guide plate is provided above the trimming plate, and a guide hole corresponding to the trimming hole is provided on the guide plate; the inner wall of the guide hole is set to be inclined, and the inner wall of the guide hole on the side close to the upper mold structure is inclined away from the center of the guide hole.

[0009] Furthermore, four groups of guide plates are provided on the trimming plate; the four groups of guide plates are arranged in a 2*2 pattern.

[0010] Furthermore, gaps are provided between the four groups of trimming plates on the trimming plate; the upper surface of the lower template is also provided with grooves serving as flow channels and glue inlets, and the grooves are located in the gaps between adjacent trimming plates.

[0011] Furthermore, the upper mold structure includes an upper mold, a guide rod, a connecting plate and a cylinder; wherein the guide rod is fixedly arranged between the connecting plate and the lower mold structure; the upper mold is slidably arranged on the guide rod, and the upper mold corresponds to the lower mold structure; a cylinder is fixedly arranged on the connecting plate, and the movable end of the cylinder is connected to the upper mold.

[0012] Furthermore, the connecting plate is connected to four guide rods, the four guide rods are arranged parallel to each other, and the four guide rods are respectively located at the four vertices of the rectangle.

[0013] Furthermore, the upper template is provided with a plurality of punches corresponding to the trimming holes on the trimming plate, and the punches protrude toward the lower template at a set height.

[0014] Furthermore, a punch fixing plate is provided between the punch and the upper template.

[0015] The beneficial effects of the utility model are:

[0016] By setting up a trimming plate and coordinating with an elastic support structure, the pressure can be evenly distributed when trimming and cutting the water outlet, making it less likely to crack. In addition, the product can be reset, making it easy to take and put the product.

[0017] By providing an elastic support structure including a support seat, a spring and a connecting rod, in conjunction with the protruding structure in the concave hole and the clamping joint provided at the end of the connecting rod, on the one hand, the support seat is helped to achieve elastic reset, and on the other hand, the movement range of the connecting rod is limited to prevent the connecting rod from falling out of the concave hole;

[0018] By setting up a heavy punch fixing plate, it is convenient to remove the punch fixing plate and maintain or replace the punch as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of Example 1;

[0020] Figure 2 This is a schematic diagram of the overall structure of Example 1 without the trimming plate;

[0021] Figure 3 This is an exploded view of the overall structure of Example 1 without the trimming plate;

[0022] Figure 4 This is a cross-sectional view of the overall structure of Example 1.

[0023] Description of the accompanying drawings: upper mold structure 1, upper mold plate 11, guide rod 12, connecting plate 13, cylinder 14, punch 15, punch fixing plate 16, linear bearing 17, lower mold structure 2, lower mold plate 21, base plate 22, fixing rod 23, concave hole 24, protruding structure 25, groove 26, trimming plate 3, trimming hole 31, elastic support structure 4, support seat 41, spring 42, connecting rod 43, clamping joint 44, product 5, guide plate 6, guide hole 61. DETAILED DESCRIPTION

[0024] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0025] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the figures only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0026] Example 1:

[0027] like Figures 1 to 4As shown, a trimming mold for a product includes an upper mold structure 1 and a lower mold structure 2. The upper mold structure 1 is correspondingly arranged directly above the lower mold structure 2 and can move toward or away from the lower mold structure 2. A trimming plate 3 for trimming and cutting glue is fixedly arranged on the lower mold structure 2. The trimming plate 3 is provided with a trimming hole 31 corresponding to the shape of the product 5 to be processed. The lower mold structure 2 is also provided with a recessed hole 24 corresponding to the trimming hole 31 on the trimming plate 3. An elastic support structure 4 is arranged in the recessed hole 24, and the top of the elastic support structure 4 is used to place the product 5 to be processed. When the upper mold structure 1 is pressed down, the product 5 placed in the trimming hole 31 of the trimming plate is pressed down, so that the edge of the product 5 is cut by the trimming plate to complete the trimming and cutting of the glue. Under the action of the elastic support structure 4, the process of pressing the product 5 down is relatively smooth and not easy to crack. In addition, when the upper mold structure 1 moves up, the elastic support structure 4 can help the product 5 to achieve reset.

[0028] The lower mold structure 2 includes a lower mold plate 21, a base plate 22 and a fixing rod 23; the lower mold plate 21 is fixed above the base plate 22 by the fixing rod 23; the position of the lower mold plate 21 on the fixing rod 23 is adjustable. In this example, a threaded structure is provided between the lower mold plate 21 and the fixing rod 23 to help the lower mold plate 21 adjust its position on the fixing rod 23; the trimming plate is fixed above the lower mold plate.

[0029] The lower mold plate 21 is provided with a recessed hole 24 for placing the elastic support structure 4. In this example, the recessed hole 24 passes through the lower mold plate 21, and a protruding structure 25 surrounding the inner wall of the recessed hole 24 is provided inside the recessed hole 24; the elastic support structure 4 includes a support seat 41 corresponding to the bottom of the product 5, a spring 42 and a connecting rod 43; wherein the connecting rod 43 is slidably arranged in the recessed hole 24 on the lower mold structure 2; the support seat 41 is fixedly arranged at one end of the connecting rod 43 close to the product 5; the spring 42 is sleeved Arranged on the outer periphery of the sliding rod, the two ends of the spring 42 respectively press against the bottom of the support seat 41 and the protruding structure 25 inside the recessed hole 24 of the lower template 21; the end of the connecting rod 43 away from the support seat 41 is provided with a clamping joint 44 for pressing against the protruding structure 25 inside the recessed hole 24, and the clamping joint 44 and the protruding structure 25 in the recessed hole 24 realize mutual clamping, so that when the connecting rod 43 receives the elastic force of the spring 42 and moves upward until the clamping joint 44 contacts the protruding structure 25, the connecting rod 43 stops moving.

[0030] To facilitate the product's passage through the trimming plate 3 facing the trimming hole 31, a guide plate 6 is provided above the trimming plate 3. Guide holes 61 corresponding to the trimming holes 31 are provided on the guide plate 6. The inner wall of the guide hole 61 is tilted, with the inner wall of the guide hole 61 on the side closest to the upper mold structure tilting away from the center of the guide hole 61. This results in the guide hole 61 gradually narrowing from top to bottom, facilitating the product's passage through the guide hole 61 and into the trimming hole 31. In this example, four sets of guide plates 6 are provided on the trimming plate of the lower mold structure 2; the four sets of guide plates 6 are arranged in a 2*2 pattern; gaps are provided between the four sets of guide plates 6 provided on the upper surface of the trimming plate; and grooves 26 serving as flow channels and glue inlets are also provided on the upper surface of the trimming plate. The grooves 26 are located in the gaps between adjacent guide plates 6.

[0031] The upper mold structure 1 includes an upper mold plate 11, a guide rod 12, a connecting plate 13, and a cylinder 14; wherein the guide rod 12 is fixedly arranged between the connecting plate 13 and the lower mold structure 2. In this example, four guide rods 12 are arranged between the connecting plate 13 and the lower mold plate 21 of the lower mold structure 2. The four guide rods 12 are arranged parallel to each other and are respectively located at the four vertices of a rectangle; the upper mold plate 11 is slidably arranged on the guide rod 12, and the upper mold plate 11 corresponds to the lower mold structure 2; in this example, a linear bearing 17 is arranged between the upper mold plate 11 and the guide rod 12; a cylinder 14 is fixedly arranged on the connecting plate 13, and the movable end of the cylinder 14 is connected to the upper mold plate 11. Through the action of the cylinder 14, the distance between the upper mold plate 11 and the connecting plate 13 is controlled, and then the upper mold plate 11 is controlled to move toward or away from the lower mold plate 21, thereby achieving downward extrusion of the product 5 or releasing the product 5.

[0032] The upper template 11 is also provided with a plurality of punches 15 corresponding to the trimming holes 31 on the trimming plate 3, and the punches 15 protrude toward the lower template 21 to a set height; the punches 15 are used to squeeze the product 5 downward so that the edge of the product 5 passes through the trimming plate 3 to complete the trimming and water cut; wherein, a punch fixing plate 16 is also provided between the punch 15 and the upper template 11, which is convenient for removing the punch fixing plate 16 and maintaining or replacing the punch 15 as a whole.

[0033] During the implementation process, by setting the trimming plate 3 and cooperating with the elastic support structure 4, the product 5 can evenly distribute the pressure during trimming and cutting the water outlet, and is not prone to cracking. In addition, the product 5 can be reset, which is convenient for taking and placing the product 5; by setting the elastic support structure 4 including the support seat 41, the spring 42 and the connecting rod 43, cooperating with the protruding structure 25 in the recessed hole 24 and the clamping joint 44 set at the end of the connecting rod 43, on the one hand, it helps the support seat 41 to achieve elastic reset, and on the other hand, it limits the movement range of the connecting rod 43 to prevent the connecting rod 43 from falling out of the recessed hole 24; by setting the heavy punch fixing plate 16, it is convenient to remove the punch fixing plate 16 and maintain or replace the punch 15 as a whole.

[0034] The above description is merely a specific example of the present invention and does not constitute any limitation thereto. It is obvious that those skilled in the art, after understanding the content and principles of the present invention, may make various modifications and changes in form and details without departing from the principles and structure of the present invention. However, such modifications and changes based on the concept of the present invention are still within the scope of protection of the claims of the present invention.

Claims

1. A trimming die for a product, comprising an upper die structure (1) and a lower die structure (2), wherein the upper die structure (1) is arranged directly above the lower die structure (2); characterized in that: A trimming plate (3) for trimming and cutting the glue opening is fixedly provided on the lower mold structure (2), and a trimming hole (31) corresponding to the shape of the product (5) to be processed is provided on the trimming plate (3); a concave hole (24) corresponding to the trimming hole (31) on the trimming plate (3) is also provided on the lower mold structure (2); an elastic support structure (4) is provided in the concave hole (24), and the top of the elastic support structure (4) is used to place the product (5) to be processed.

2. The trimming die for a product according to claim 1, characterized in that: The lower mold structure (2) comprises a lower mold plate (21), a bottom plate (22), and a fixing rod (23); the lower mold plate (21) is fixedly arranged above the bottom plate (22) via the fixing rod (23); the position of the lower mold plate (21) on the fixing rod (23) is adjustable; and the trimming plate (3) is fixedly arranged above the lower mold plate (21).

3. The trimming die for a product according to claim 2, characterized in that: The lower template (21) is provided with a concave hole (24), which passes through the lower template (21), and a protruding structure (25) surrounding the inner wall of the concave hole (24) is provided on the inner side of the concave hole (24); the elastic support structure (4) includes a support seat (41) corresponding to the bottom of the product (5), a spring (42) and a connecting rod (43); wherein the connecting rod (43) is slidably arranged in the concave hole (24) on the lower mold structure (2); the support seat (41) is fixedly arranged at one end of the connecting rod (43) close to the product (5); the spring (42) is sleeved on the outer periphery of the sliding rod, and the two ends of the spring (42) respectively abut against the bottom of the support seat (41) and the protruding structure (25) inside the concave hole (24) of the lower template (21); and a clamping joint (44) for abutting against the protruding structure (25) inside the concave hole (24) is provided at one end of the connecting rod (43) away from the support seat (41).

4. The trimming die for a product according to claim 3, characterized in that: A guide plate (6) is provided above the trimming plate (3), and a guide hole (61) corresponding to the trimming hole is provided on the guide plate (6); the inner wall of the guide hole (61) is arranged to be inclined, and the inner wall of the guide hole (61) on the side close to the upper mold structure (1) is inclined in a direction away from the center of the guide hole (61).

5. The trimming die for a product according to claim 3, characterized in that: Four groups of guide plates (6) are provided on the trimming plate (3); the four groups of guide plates (6) are arranged in a 2*2 pattern.

6. The trimming die for a product according to claim 5, characterized in that: Gaps are provided between the four groups of trimming plates (3) on the trimming plate (3); the upper surface of the lower template (21) is also provided with grooves (26) serving as flow channels and glue inlets, and the grooves (26) are located in the gaps between adjacent trimming plates (3).

7. The trimming die for a product according to claim 1, characterized in that: The upper mold structure (1) comprises an upper mold plate (11), a guide rod (12), a connecting plate (13) and a cylinder (14); wherein the guide rod (12) is fixedly arranged between the connecting plate (13) and the lower mold structure (2); the upper mold plate (11) is slidably arranged on the guide rod (12), and the upper mold plate (11) corresponds to the lower mold structure (2); the cylinder (14) is fixedly arranged on the connecting plate (13), and the movable end of the cylinder (14) is connected to the upper mold plate (11).

8. The trimming die for a product according to claim 7, characterized in that: The connecting plate (13) is connected to four guide rods (12), the four guide rods (12) are arranged parallel to each other, and the four guide rods (12) are respectively located at the four vertices of a rectangle.

9. The trimming die for a product according to claim 7, characterized in that: The upper template (11) is also provided with a plurality of punches (15) corresponding to the trimming holes (31) on the trimming plate (3), and the punches (15) protrude toward the lower template (21) to a set height.

10. The trimming die for a product according to claim 9, characterized in that: A punch fixing plate (16) is also provided between the punch (15) and the upper template (11).

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