Demolding mechanism of stamping die
By designing a demolding mechanism consisting of a tabletop, side plates, fixed columns, sliding columns, and a motor-driven mechanism, the problem of poor adaptability of existing mold extrusion mechanisms was solved, enabling efficient demolding of different mold models and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-24
AI Technical Summary
The extrusion mechanism of existing stamping dies cannot be adapted to various different types of dies, resulting in wasted demolding time and low efficiency.
A demolding mechanism was designed, which includes a table, side plates, fixed columns, sliding columns, a motor, gears, and a positioning mechanism. The motor drives the gears to move the sliding columns and calipers, which, together with the springs and positioning columns, enable precise demolding of molds of different sizes.
It enables efficient and precise demolding of different mold types, reduces demolding time, and improves production efficiency.
Smart Images

Figure CN224026336U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to punch die technical field especially relates to punch die's demolding mechanism. BACKGROUND
[0002] Punch die is the special process equipment that material is processed into the part in the punch processing, it mainly through the pressure machine pressure, make the work part of mould to material carry out punch pressing, thereby obtain the product of required shape and size, and in the production process, demolding mechanism is very important, it is mainly used for the workpiece after punch forming is taken out from the mould cavity smoothly, in the punch process, material happens plastic deformation under the action of mould, and the workpiece after forming will be closely attached to some parts of the mould, the existence of demolding mechanism is to overcome the resistance brought by this attachment, ensure that the workpiece can be separated from the mould according to the predetermined mode, to ensure that punch production process can continuously, efficiently carry out, in some deep punch part processing, such as the punch forming of automobile parts, if the workpiece after forming does not have good demolding mechanism, it is easy to be stuck in the mould, lead to mould damage and production stagnation, but in the demolding process, often need to be carried out by extrusion.
[0003] The extrusion mechanism in punch die demolding mechanism mainly helps the workpiece demolding by exerting certain extrusion force, it is usually composed of extrusion rod, extrusion block and electric machine, and its basic principle is to use the movement generated during mould opening and closing to make the extrusion part produce directional extrusion force to the workpiece, the direction of this extrusion force is generally perpendicular to the surface of workpiece and mould attachment and along the favorable direction of workpiece demolding, when the workpiece with complex shape inner recess part demolding, the extrusion rod will be driven under the action of mould opening and closing to extrude the inner recess of workpiece, make the workpiece separate from the mould cavity, the extrusion mechanism can also cooperate with spring to provide buffer extrusion force at the appropriate time, ensure that the demolding process is effective and will not damage the workpiece, but this kind of extrusion mechanism can not adapt to multiple different models of mould, lead to only single demolding to a pair of mould, and then waste a lot of demolding time. UTILITY MODEL CONTENTS
[0004] In order to make up for the above shortcomings, the utility model provides punch die's demolding mechanism, aims at improving the problem that the extrusion mechanism in prior art can not adapt to multiple different models of mould, lead to only single demolding to a pair of mould, and then waste a lot of demolding time.
[0005] In order to achieve the above object, the utility model discloses the following technical scheme: the draw mechanism of stamping die, including mesa, the top left and right sides of mesa are all fixedly connected with a plurality of side plates, the inside fixedly connected with fixed column of side plate, the outer wall slidingly connected with spring no.
[0006] As a further description of the above technical scheme:
[0007] The positioning mechanism includes a circular ring, the outer wall of the circular ring is slidingly connected with the inner wall of the mesa, a cross-shaped groove is formed in the top of the mesa near the middle, a circular hole one is formed in the top of the mesa near the edge, a plurality of circular holes two are formed in the top of the circular ring near the edge, the inner wall of the circular hole two is slidingly connected with a buckle, and the inner wall of the circular ring is fixedly connected with a positioning column.
[0008] As a further description of the above technical scheme:
[0009] The left side of the side plate is fixedly connected with a fixed block, and the top of the fixed block is fixedly connected with the bottom of the motor.
[0010] As a further description of the above technical scheme:
[0011] The inside of the side plate is provided with a long hole, and the inner wall of the caliper is slidingly connected with a limiting column.
[0012] As a further description of the above technical scheme:
[0013] The top of the sliding column is fixedly connected with a support plate, and the front side of the support plate is fixedly connected with a plurality of fixed rods.
[0014] As a further description of the above technical scheme:
[0015] The outer wall of the fixed rod is slidingly connected with a spring two, and the other end of the spring two is fixedly connected with a sliding rail.
[0016] As a further description of the above technical scheme:
[0017] The top of the mesa is fixedly connected with a plurality of fixed pins on the left and right sides, and the bottom of the mesa is fixedly connected with a plurality of suction cups around.
[0018] As a further description of the above technical scheme:
[0019] The inner wall of the fixed plate two is fixedly connected with the outer wall of the sliding column.
[0020] The utility model has the advantages of the following:
[0021] 1、 the utility model discloses, when needing to carry out stripping, first pull the supporting plate, the supporting plate drives fixed rod to move back at this time, then fixed rod will pull spring no.
[0022] 2、 the utility model discloses, first take the buckle, make the buckle leave the inside of the circular hole two of the circular ring, then the circular hole two leaves the circular hole one, according to the position of the stripping mouth of the mould, adjust the positioning column to the suitable position along the cross recess, then reinsert the circular hole two into the inside of the circular hole one and the circular hole two, at this time, the mould moves down, and the part after injection molding will be ejected by the positioning column, which realizes the function of stripping of different mould stripping mouths. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is the front side perspective drawing of the stripping mechanism of the stamping die put forward in the utility model;
[0024] Figure 2 It is the top perspective drawing of the stripping mechanism of the stamping die put forward in the utility model;
[0025] Figure 3 It is the partial structure split drawing of the positioning column of the stripping mechanism of the stamping die put forward in the utility model;
[0026] Figure 4 It is the partial structure split drawing of the side plate of the stripping mechanism of the stamping die put forward in the utility model;
[0027] Figure 5 It is the partial structure split drawing of the moving plate of the stripping mechanism of the stamping die put forward in the utility model;
[0028] Figure 6 It is the partial structure split drawing of the fixed rod of the stripping mechanism of the stamping die put forward in the utility model.
[0029] LEGEND:
[0030] 1, mesa; 2, positioning mechanism; 201, cross-shaped groove; 202, round hole one; 203, circular ring; 204, buckle; 205, positioning column; 206, round hole two; 3, side plate; 4, fixed column; 5, spring one; 6, sliding column; 7, moving plate; 8, round hole three; 9, caliper; 10, gear; 11, motor; 12, fixed block; 13, long hole; 14, limit column; 15, support plate; 16, fixed rod; 17, spring two; 18, slide rail; 19, fixed pin; 20, fixed plate two; 21, suction cup. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0032] Please refer to the drawings Figure 1 , the drawings Figure 4 and the drawings Figure 5 , the present application provides an embodiment: the demolding mechanism of the stamping die, including mesa 1, the top of mesa 1 is fixedly connected with a plurality of side plates 3 on the left and right sides, the inside of side plate 3 is fixedly connected with fixed column 4, which plays a role of fixed support, the outer wall of fixed column 4 is slidably connected with spring one 5, the outer wall of fixed column 4 is slidably connected with sliding column 6, the left end of sliding column 6 is fixedly connected with moving plate 7, the left side of side plate 3 is fixedly connected with motor 11, which provides power source for the whole, the output end of motor 11 is fixedly connected with gear 10, the outer wall of gear 10 is meshingly connected with caliper 9, the top of caliper 9 is fixedly connected with the bottom of moving plate 7, the outer wall of moving plate 7 is provided with a plurality of round hole three 8, so that the transmission is more stable, the top of mesa 1 is provided with positioning mechanism 2, which is used for adjusting position;
[0033] Specifically, it mainly comprises a table top 1, the top of the table top 1 is fixedly connected with a plurality of side plates 3 on both sides, these side plates 3 not only play a supporting role, but also provide a stable structural foundation for the whole device, in the inside of the side plate 3, a plurality of fixed columns 4 are fixedly connected, these fixed columns 4 serve as the skeleton of the device, ensuring the firmness and durability of the device, in order to realize the flexible movement of some components, a spring one 5 is slidably connected on the outer wall of the fixed column 4, the spring one 5 can provide a certain elastic force to adapt to different operation requirements, in addition, a sliding column 6 is slidably connected on the outer wall of the fixed column 4, the design of the sliding column 6 enables the device to move linearly accurately, the left end of the sliding column 6 is fixedly connected with a moving plate 7, the moving plate 7 can move along a certain direction under the guidance of the sliding column 6, so as to realize the dynamic adjustment of the device, in order to drive the movement of the moving plate 7, a motor 11 is fixedly connected on the left side of the side plate 3, the motor 11 serves as a power source and can provide the necessary power, the output end of the motor 11 is fixedly connected with a gear 10, the gear 10 is connected with a caliper 9 through its meshing mechanism, the top of the caliper 9 is fixedly connected with the bottom of the moving plate 7, ensuring that the movement of the moving plate 7 is synchronized with the measurement of the caliper 9, finally, a plurality of circular holes three 8 are opened on the outer wall of the moving plate 7, which not only reduces the weight of the moving plate 7.
[0034] Please refer to the attached Figure 1 , attached Figure 2 and attached Figure 3 , the positioning mechanism 2 comprises a circular ring 203, the outer wall of the circular ring 203 is slidably connected with the inner wall of the table top 1, a cross-shaped recess 201 is opened on the top of the table top 1 near the middle, which facilitates the sliding of the circular ring 203, a circular hole one 202 is opened on the top of the table top 1 near the edge, a plurality of circular holes two 206 are opened on the top of the circular ring 203 near the edge, the inner wall of the circular hole two 206 is slidably connected with a buckle 204, which can fix the positioning column 205, the inner wall of the circular ring 203 is fixedly connected with a positioning column 205;
[0035] Specifically, the described positioning mechanism 2 specifically includes a ring 203, the outer wall of the ring 203 is in sliding connection with the inner wall of the table top 1 to ensure smooth relative movement between the two, the top area of the table top 1, near the center, is specially provided with a cross-shaped groove 201, which helps to enhance the stability of the structure, in addition, a circular hole 202 is specially provided in the top edge area of the table top 1, the circular hole 202 is provided to meet the installation and operation needs of other components, the top edge area of the ring 203 is also provided with a plurality of circular holes 206, the inner wall of the circular hole 206 is in sliding connection with the buckle 204, the buckle 204 is used to fix the ring 203 in a specific position to prevent it from moving disorderly, finally, a positioning column 205 is fixedly connected to the inner wall of the ring 203, the positioning column 205 is used to ensure that the entire positioning mechanism 2 can be accurately positioned on the table top 1, thereby ensuring the accuracy and reliability of the entire device.
[0036] Please refer to the attached Figure 1 , attached Figure 3 and attached Figure 6 , the left side of the side plate 3 is fixedly connected with a fixed block 12, the top of the fixed block 12 is fixedly connected with the bottom of the motor 11, the inside of the side plate 3 is provided with a long hole 13, so that the overall connection is more stable, the inner wall of the caliper 9 is in sliding connection with a limiting column 14, which plays a limiting role, the top of the sliding column 6 is fixedly connected with a support plate 15, the front side of the support plate 15 is fixedly connected with a plurality of fixed rods 16, so that the overall connection is more stable.
[0037] Specifically, the left side of the side plate 3 is fixedly connected with a fixed block 12 to ensure the stability of the side plate 3, further, the top of the fixed block 12 is fixedly connected with the bottom of the motor 11 to ensure the stable operation of the motor 11, in addition, the inside of the side plate 3 is provided with a long hole 13 to provide space for the inner wall of the caliper 9 to be in sliding connection with a limiting column 14, the inner wall of the caliper 9 is in sliding connection with a limiting column 14 to ensure the accurate movement of the caliper 9, in addition, the top of the sliding column 6 is fixedly connected with a support plate 15 to provide stable support for the support plate 15, finally, the front side of the support plate 15 is fixedly connected with a plurality of fixed rods 16 to provide additional stability for the support plate 15.
[0038] Please refer to the attached Figure 1 , attached Figure 2 and attached Figure 6The outer wall of the fixed rod 16 is slidably connected with a spring 17, the other end of the spring 17 is fixedly connected with a sliding rail 18, the whole is provided with elastic support, the top of the table top 1 is fixedly connected with a plurality of fixed pins 19 on the left and right sides, which plays a fixed effect, the bottom of the table top 1 is fixedly connected with a plurality of suction cups 21 around, the right side of the side plate 3 is slidably connected with a fixed plate 20, so that the whole is more stable, the inner wall of the fixed plate 20 is fixedly connected with the outer wall of the sliding column 6;
[0039] Specifically, the outer wall of the fixed rod 16 is slidably connected with a spring 17, allowing the spring 17 to freely stretch within a certain range, thereby providing a certain elasticity, the other end of the spring 17 is fixedly connected with a sliding rail 18, so that the spring 17 can smoothly slide along the length direction, ensuring the stability and reliability of the whole device, in addition, the top of the table top 1 is fixedly connected with a plurality of fixed pins 19 on the left and right sides, which ensures that the articles placed on the table top 1 will not move easily, thereby improving the use safety of the table top 1, in order to further enhance the stability of the table top 1, the bottom of the table top 1 is fixedly connected with a plurality of suction cups 21 around, which can be firmly adsorbed on the smooth surface, preventing the table top 1 from sliding during use, further, the right side of the side plate 3 is slidably connected with a fixed plate 20 at the upper end, this connection mode allows the fixed plate 20 to slide up and down on the side plate 3, thereby adapting to articles of different heights, finally, the inner wall of the fixed plate 20 is fixedly connected with the outer wall of the sliding column 6, so that the fixed plate 20 can move up and down along the sliding column 6, providing more use flexibility for the user.
[0040] Working principle: when demolding is needed, first pull the supporting plate 15, at this time the supporting plate 15 drives the fixed rod 16 to move backward, then the fixed rod 16 will pull the spring 17, and then the spring 17 drives the sliding rail 18 to move downward, at this time the mold is put in, the supporting plate 15 is released, at this time the spring 17 restores, drives the fixed rod 16 and the supporting plate 15 to move inward, at the same time the spring 17 will drive the sliding rail 18 to press the mold inward, at this time the motor 11 is started, which drives the gear 10 to rotate, at the same time the gear 10 drives the caliper 9 to move downward along the limiting column 14, drives the moving plate 7 to move downward, drives the sliding column 6 to move downward, at the same time the spring 5 is compressed, so that the sliding column 6 moves downward on the outer wall of the fixed column 4, realizing the function of adapting to different sizes of molds for demolding;
[0041] First, the buckle 204 is picked up, so that the buckle 204 leaves the inside of the circular hole two 206 of the ring 203, then the circular hole two 206 leaves the circular hole one 202, according to the position of the demoulding port of the mould, the positioning column 205 is adjusted to the appropriate position along the cross-shaped groove 201, then the circular hole two 206 is inserted into the inside of the circular hole one 202 and the circular hole two 206, at this time the mould moves downward, the part after injection molding will be ejected by the positioning column 205, realizing the function of being able to adapt to the demoulding of different moulds.
[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included within the scope of the present application.
Claims
1. Ejection mechanism of a punch-die, comprising a table (1), characterized in that: The top left and right sides of the table top (1) are fixedly connected with a plurality of side plates (3), the inside of the side plate (3) is fixedly connected with a fixed column (4), the outer wall of the fixed column (4) is slidably connected with a spring (5), the outer wall of the fixed column (4) is slidably connected with a sliding column (6), the left end of the sliding column (6) is fixedly connected with a moving plate (7), the left side of the side plate (3) is fixedly connected with a motor (11), the output end of the motor (11) is fixedly connected with a gear (10), the outer wall of the gear (10) is meshedly connected with a caliper (9), the top of the caliper (9) is fixedly connected with the bottom of the moving plate (7), a plurality of circular holes three (8) are formed in the outer wall of the moving plate (7), the top of the table top (1) is provided with a positioning mechanism (2), and the positioning mechanism (2) is used for adjusting the position.
2. The stripper mechanism of a punch press according to claim 1, characterized in that: The positioning mechanism (2) comprises a circular ring (203), the outer wall of the circular ring (203) is slidably connected with the inner wall of the table top (1), a cross-shaped groove (201) is formed in the top of the table top (1) near the middle, a circular hole one (202) is formed in the top of the table top (1) near the edge, a plurality of circular holes two (206) are formed in the top of the circular ring (203) near the edge, the inner wall of the circular hole two (206) is slidably connected with a buckle (204), and the inner wall of the circular ring (203) is fixedly connected with a positioning column (205).
3. The stripper mechanism of a punch press as set forth in claim 1, wherein: The left side of the side plate (3) is fixedly connected with a fixed block (12), and the top of the fixed block (12) is fixedly connected with the bottom of the motor (11).
4. The stripper mechanism of a punch press according to claim 1, wherein: The inside of the side plate (3) is provided with a long hole (13), and the inner wall of the caliper (9) is slidably connected with a limiting column (14).
5. The stripper mechanism of a punch press as set forth in claim 1, wherein: The top of the sliding column (6) is fixedly connected with a supporting plate (15), and the front side of the supporting plate (15) is fixedly connected with a plurality of fixed rods (16).
6. The stripper mechanism of a punch press according to claim 5, wherein: The outer wall of the fixed rod (16) is slidably connected with a spring (17), and the other end of the spring (17) is fixedly connected with a sliding rail (18).
7. The ejection mechanism of a stamping die according to claim 1, characterized in that: The top left and right sides of the table top (1) are fixedly connected with a plurality of fixed pins (19), and the bottom of the table top (1) is fixedly connected with a plurality of suction cups (21).
8. The ejection mechanism of a stamping die according to claim 1, characterized in that: The right side of the side plate (3) is slidably connected with a fixed plate two (20), and the inner wall of the fixed plate two (20) is fixedly connected with the outer wall of the sliding column (6).