Demolding mechanism and injection mold

Abstract

The utility model relates to a demolding mechanism and an injection mold, and relates to the technical field of injection molds, the demolding mechanism is used for separating a product from a male mold plate and a female mold plate, the demolding mechanism comprises a movable mold plate arranged on the male mold plate, and a cavity for injection of a plastic material is jointly formed among the male mold plate, the female mold plate and the movable mold plate; the mold further comprises a rebounding assembly, the rebounding assembly is arranged between the male mold plate and the movable mold plate, and after the female mold plate is opened, the rebounding assembly automatically bounces the movable mold plate to be separated from the male mold plate, so that the product is driven to bounce and demold. Through the arrangement of the springback assembly and the movable mold plate, after injection molding is completed, the springback assembly can automatically push the movable mold plate to pop out so as to drive a product to automatically pop out to be separated from the male mold plate, the separation and demolding efficiency is high, and the product can directly pop out together with the movable mold plate when product demolding is conducted in the mode; the problem of ejection lines caused by ejection of the product by using other parts can be avoided, and the appearance effect of the product is improved.

Description

Technical Field

[0001] The present application relates to the technical field of injection molds, and in particular to a demoulding mechanism and an injection mold. Background Art

[0002] An injection mold is a tool used to manufacture plastic products during the injection molding process; it consists of two parts: a female mold plate and a male mold plate, with a cavity between the female mold plate and the male mold plate, the shape of which corresponds to the final product. During the injection molding process, the molten plastic material is injected into the cavity of the mold. After cooling and solidification, the molded product needs to be demolded and separated by a demolding device provided on the injection mold to obtain a molded plastic product.

[0003] At present, the demoulding device of the injection mold on the market usually includes an ejector, an ejector plate and an ejector fixing plate for fixing the ejector. When demoulding, the mother mold plate is opened and the product in the mold cavity is ejected by the ejector, or the product is demoulded by a push plate. Since the ejector or the push plate has a large impact force when ejecting the product, it is easy to cause an ejection line at the bottom of the product, thereby affecting the appearance of the manufactured product. Utility Model Content

[0004] In order to improve the problem that the existing demoulding device may cause ejection lines on the product that affect the appearance, the present application provides a demoulding mechanism and an injection mold.

[0005] The demoulding mechanism and injection mold provided in this application adopt the following technical solutions:

[0006] A demoulding mechanism is used to separate a product from a male template and a female template, comprising a movable template arranged on the male template, wherein the male template, the female template and the movable template together form a cavity for injecting plastic material; and further comprising a rebound component, wherein the rebound component is arranged between the male template and the movable template, and after the female template is opened, the rebound component automatically pops up the movable template and separates it from the male template, thereby driving the product to pop up and demould.

[0007] By adopting the above technical solution, when it is necessary to open the mold and take out the product, the mother template is opened, and the movable template, the rebound component and the product are all separated from the restriction of the mother template. At this time, the rebound component will push the movable template to move to the side away from the male template, thereby driving the product to move, and realizing the separation and demoulding of the product from the male template and the mother template; in this application, through the arrangement of the rebound component and the movable template, after the injection molding is completed, the rebound component will automatically push the movable template to pop out and drive the product to automatically pop out and separate from the male template, thereby improving the separation and demoulding efficiency of the product, and using this method to demould the product, the product and the movable template are popped out together, which can avoid the problem of ejection lines caused by using other components to eject the product, thereby improving the appearance of the product.

[0008] In a specific possible implementation scheme, the product is fixed to the movable template via a sliding block, and a hydraulic cylinder is also provided on the movable template, a telescopic rod of the hydraulic cylinder is connected to the sliding block, and the hydraulic cylinder withdraws the sliding block from the product.

[0009] By adopting the above technical solution, after the product is separated from the male template, the hydraulic cylinder is started, and the telescopic rod of the hydraulic cylinder contracts to withdraw the sliding block connected thereto from the product, thereby separating the product from the movable template, making it convenient for the staff to take out the product. This method is achieved by withdrawing the product, which can avoid damage caused by external force pushing out the product.

[0010] In a specific feasible implementation scheme, a movable cavity is provided on the movable template, the hydraulic cylinder is installed on the movable template through a fixed plate, the telescopic rod of the hydraulic cylinder passes through the fixed plate and is inserted into the movable cavity to connect with the sliding block, and the sliding block slides in the movable cavity.

[0011] By adopting the above technical solution, before use, the hydraulic cylinder is fixed on the movable template through the fixed plate, and then the telescopic rod of the hydraulic cylinder is inserted into the movable cavity through the fixed plate to connect with the slider part to complete the assembly. When the slider part is withdrawn from the product, the hydraulic cylinder is started, and the telescopic rod of the hydraulic cylinder contracts to drive the slider part to move toward the side of the fixed plate in the movable cavity, thereby achieving the purpose of separating the slider part from the product.

[0012] In a specific possible implementation manner, a pressure block is provided on each opposite side of the movable cavity, the pressure block is arranged along the moving direction of the sliding block, and the sliding block slides against the pressure block.

[0013] By adopting the above technical solution, by arranging pressure blocks on opposite sides of the active cavity, when the hydraulic cylinder drives the slider to withdraw the product, the slider will be limited by the resistance force of the pressure blocks during its movement, thereby preventing the slider from vibrating during the movement of the hydraulic cylinder and colliding with the product to cause deformation, thereby allowing the slider to stably withdraw from the product and ensuring the appearance of the product.

[0014] In a specific possible implementation manner, the rebound assembly includes a plurality of springs, one side of each of the plurality of springs abuts against the male template, and the other side of each of the plurality of springs abuts against the movable template.

[0015] By adopting the above technical solution, during injection molding, the female template is assembled with the male template and the movable template, and the female template will squeeze the movable template and thereby squeeze a number of springs, which are compressed and stored toward the male template side; when it is necessary to open the mold and take out the product, the female template is opened, and the movable template, the several springs and the product are all freed from the restriction of the female template. At this time, the several springs pop up and push the movable template to move to the side away from the male template, thereby driving the product to pop up and separate from the male template.

[0016] In a specific possible implementation scheme, a shock-absorbing pad is further included, and shock-absorbing grooves are provided on one side of the movable template and the male template close to the spring, and the shock-absorbing pads are arranged in the shock-absorbing grooves, and the ends of the springs are in contact with the shock-absorbing pads.

[0017] By adopting the above technical solution, the shock-absorbing pad is arranged on the side of the movable template and the male template close to the spring. The shock-absorbing pad is in direct contact with the spring. The shock-absorbing pad can reduce the rebound vibration after the spring pops out, thereby reducing the possibility of the product rebounding and colliding with the male template after popping out, and further reducing the possibility of damage to the product caused by the spring rebound vibration.

[0018] In a specific possible implementation scheme, it also includes a limiting bolt. The movable template is provided with a limiting groove. The limiting bolt is arranged on the male template and passes through the movable template and is inserted into the limiting groove. The limiting groove slides along the limiting bolt. After the movable template pops up, the limiting bolt is stuck in the limiting groove.

[0019] By adopting the above technical solution, when the movable template pops up, the limit groove slides along the limit bolt to the side away from the male template. When the bottom wall of the limit groove conflicts with the limit bolt, the limit bolt will be stuck on the limit groove, thereby limiting the moving stroke of the movable template and preventing the movable template from popping up and falling out.

[0020] In a specific possible implementation manner, a buffer pad is provided on the bottom wall of the limiting groove, and the buffer pad is in conflict with the limiting bolt.

[0021] By adopting the above technical solution and utilizing the buffer pad provided on the limit groove, when the limit bolt is engaged with the limit groove, the limit bolt will abut against the buffer pad, thereby preventing the limit bolt from colliding and being damaged with the limit groove when the movable template pops up, thereby improving the service life and preventing the collision from generating debris that affects the subsequent injection molding quality.

[0022] In a specific possible implementation scheme, it also includes a guide column, which is arranged on the male template and passes through the movable template, and the movable template slides along the guide column.

[0023] By adopting the above technical solution, when the rebound component pops up the movable template and the product, the movable template will slide along; by utilizing the setting of the guide column, the guide column can make the pop-up movement of the movable template more stable, thereby improving the stability of the demolding work between the product and the male template.

[0024] An injection mold comprises the demoulding mechanism described above.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The present application adopts the arrangement of a rebound component, a movable template, a slider and a hydraulic cylinder. After the injection molding is completed, the rebound component will automatically push the movable template to pop up and drive the product to automatically pop up and separate from the male template. Then, the hydraulic cylinder drives the slider to withdraw the product, thereby realizing the separation of the product from the movable template and completing the demoulding of the entire product. Compared with the prior art, the demoulding mechanism of the present application can avoid the problem of ejection lines caused by using other components to eject the product, thereby improving the appearance of the product.

[0027] 2. The present application sets a limit bolt. When the movable template pops up, the limit slot slides along the limit bolt to the side away from the male template. When the bottom wall of the limit slot hits the limit bolt, the limit bolt will be stuck on the limit slot, thereby limiting the moving stroke of the movable template, thereby preventing the movable template from popping up and falling out.

[0028] 3. In the present application, the guide column is set up, and when the rebound component pops up the movable template and the product, the movable template will slide along; by utilizing the setting of the guide column, the guide column can make the pop-up movement of the movable template more stable, thereby improving the stability of the demolding work between the product and the male template. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the demoulding mechanism in Example 1 of the present application.

[0030] Figure 2 is a cross-sectional view showing the springback assembly.

[0031] Figure 3 It is a structural diagram for displaying movable templates and slider components.

[0032] Figure 4 It is a cross-sectional view used to show the limit bolts and guide posts.

[0033] Figure 5 It is a structural schematic diagram of the demoulding mechanism in Example 2 of the present application.

[0034] Figure 6 It is a structural schematic diagram of the demoulding mechanism in Example 3 of the present application.

[0035] Explanation of the accompanying drawings: 1. Male template; 2. Female template; 3. Movable template; 31. Limiting groove; 311. Buffer pad; 32. Movable cavity; 33. Pressure block; 4. Rebound assembly; 41. Spring; 5. Hydraulic cylinder; 51. Telescopic rod; 6. Fixed plate; 7. Limiting bolt; 8. Guide column; 9. Shock-absorbing groove; 91. Shock-absorbing pad; 10. Slider member. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] Example 1

[0038] Reference Figure 1 and Figure 2 , the embodiment of the present application discloses a demoulding mechanism, which is used to separate the product from the male template 1 and the female template 2, including a movable template 3 arranged on the male template 1, the male template 1, the female template 2 and the movable template 3 together form a cavity for injecting plastic material, the movable template 3 is arranged between the male template 1 and the female template 2 and conflicts with the female template 2, in this embodiment, the male template 1, the female template 2 and the movable template 3 are all arranged horizontally;

[0039] The demoulding mechanism also includes a rebound component 4, which is arranged between the male template 1 and the movable template 3. The rebound component 4 includes a plurality of springs 41. In this embodiment, the springs 41 include but are not limited to being set to 4. The 4 springs 41 are evenly distributed along the circumference of the movable template 3. One side of the plurality of springs 41 abuts against the male template 1, and the other side abuts against the movable template 3. After the female template 2 is opened, the plurality of springs 41 automatically pop up the movable template 3 and separate it from the male template 1, thereby driving the product to pop up and demould. In this embodiment, the plurality of springs 41 automatically pop up the movable template 3 and the product in the vertical direction.

[0040] Reference Figure 3 and Figure 4 The demoulding mechanism also includes a limiting bolt 7, a limiting groove 31 is provided on the movable template 3, the limiting bolt 7 is arranged on the male template 1 and passes through the movable template 3 and is inserted into the limiting groove 31. In the present embodiment, one end of the limiting bolt 7 is threadedly connected to the male template 1, and the other end passes through the movable template 3 and is inserted into the limiting groove 31. The limiting bolt 7 and the limiting groove 31 are both provided in two and are arranged one by one. The two limiting bolts 7 are both vertically arranged, and the limiting groove 31 slides along the limiting bolt 7. After the movable template 3 pops up, the limiting bolt 7 is stuck on the groove bottom wall of the limiting groove 31; when the movable template 3 pops up, the limiting groove 31 slides along the limiting bolt 7 to the side away from the male template 1. When the groove bottom wall of the limiting groove 31 conflicts with the limiting bolt 7, the limiting bolt 7 will be stuck on the limiting groove 31, thereby limiting the moving stroke of the movable template 3, thereby preventing the movable template 3 from popping up and falling out;

[0041] The demoulding mechanism further includes a guide column 8, which is arranged on the male template 1 and passes through the movable template 3. In the present embodiment, the guide columns 8 are set to four, and the four guide columns 8 are arranged along the circumference of the movable template 3. The four guide columns 8 are all arranged vertically, and the movable template 3 slides along the four guide columns 8; when the rebound component 4 pops up the movable template 3 and the product, the movable template 3 will slide along the guide columns 8, and the guide columns 8 can make the pop-up movement of the movable template 3 more stable, thereby improving the stability of the demoulding work between the product and the male template 1;

[0042] The present application adopts the arrangement of the rebound component 4 and the movable template 3. After the injection molding is completed, the rebound component 4 will automatically push the movable template 3 to pop out and drive the product to automatically pop out and separate from the male template 1, thereby improving the separation and demoulding efficiency of the product. In addition, by using this method to demould the product, the product and the movable template 3 are popped out together, which can avoid the problem of ejection lines caused by using other components to eject the product, thereby improving the appearance of the product.

[0043] Specific working process: during injection molding, the female template 2 is assembled with the male template 1 and the movable template 3. At this time, the female template 2 is in contact with the movable template 3, and the female template 2 will squeeze the movable template 3 to move toward the side of the male template 1, thereby squeezing a plurality of springs 41, and the plurality of springs 41 are compressed and stored force by being squeezed toward the side of the male template 1; when it is necessary to open the mold to take out the product, the female template 2 is opened, and the movable template 3, the plurality of springs 41 and the product are all separated from the restriction of the female template 2. At this time, the plurality of springs 41 pop up and push the movable template 3 to move to the side away from the male template 1, thereby driving the product to pop up and separate from the male template 1 for demoulding; in this process, the movable template 3 will move along the guide column 8, and the limiting groove 31 set on the movable template 3 will move along the limiting bolt 7. When the limiting bolt 7 conflicts with the bottom wall of the limiting groove 31, the limiting bolt 7 will be stuck on the bottom wall of the limiting groove 31, thereby limiting the moving stroke of the movable template 3, and the guide column 8 can make the pop-up movement of the movable template 3 more stable, thereby improving the stability of the demoulding work of the product and the male template 1.

[0044] Reference Figure 3The product is fixed on the movable template 3 through a slider 10. The movable template 3 is also provided with a hydraulic cylinder 5. The telescopic rod 51 of the hydraulic cylinder 5 is connected to the slider 10. In the present embodiment, the telescopic rod 51 of the hydraulic cylinder 5 and the slider 10 include but are not limited to being connected through a headless screw. The hydraulic cylinder 5 drives the telescopic rod 51 to contract to drive the slider 10 to move and exit the product. In the present embodiment, the telescopic rod 51 of the hydraulic cylinder 5 drives the slider 10 to move horizontally to exit the product; after the product is separated from the male template 1, the hydraulic cylinder 5 is started, and the telescopic rod 51 of the hydraulic cylinder 5 contracts to move the slider 10 connected thereto and exit the product, thereby separating the product from the movable template 3, so that it is convenient for the staff to take out the product, and this method is achieved by exiting the product, which can avoid the situation where external force pushes out the product and causes damage.

[0045] The movable template 3 is provided with an active cavity 32, and the hydraulic cylinder 5 is installed on the movable template 3 through a fixed plate 6. In this embodiment, the fixed plate 6 is connected to the movable template 3 by screws, and the fixed plate 6 is arranged perpendicular to the hydraulic cylinder 5. The telescopic rod 51 of the hydraulic cylinder 5 passes through the fixed plate 6 and is inserted into the active cavity 32 and connected with the slider 10, and the slider 10 slides in the active cavity 32;

[0046] A pressing block 33 is provided on the opposite side of the movable cavity 32. In this embodiment, the pressing block 33 is fixed to the movable template 3 by screws. The two pressing blocks 33 are arranged along the moving direction of the slider 10. The outer wall of the slider 10 and the inner wall of the pressing block 33 are slidably abutted.

[0047] Before use, fix the hydraulic cylinder 5 on the movable template 3 through the fixed plate 6, and then insert the telescopic rod 51 of the hydraulic cylinder 5 through the fixed plate 6 into the movable cavity 32 to connect with the slider 10 to complete the assembly. When the slider 10 is to be withdrawn from the product, start the hydraulic cylinder 5, and the telescopic rod 51 of the hydraulic cylinder 5 contracts to drive the slider 10 to move toward the fixed plate 6 in the movable cavity 32. During the movement of the slider 10, it will be limited by the resistance force of the pressure block 33, so as to avoid vibration during the movement of the slider 10 driven by the hydraulic cylinder 5 and collision with the product to cause deformation, thereby ensuring the appearance of the product, so that the slider 10 can be stably withdrawn from the product, thereby achieving the purpose of separating the slider 10 from the product, thereby realizing the separation of the product from the movable template 3.

[0048] The present application also provides an injection mold, which includes the demolding mechanism described above. In this embodiment, the injection mold includes but is not limited to an injection mold for producing medical devices.

[0049] The implementation principle of Example 1 is as follows: the present application sets up the rebound component 4, the movable template 3, the slider 10 and the hydraulic cylinder 5. After the injection molding is completed, the rebound component 4 will automatically push the movable template 3 to pop up and drive the product to automatically pop up and separate from the male template 1, and then drive the slider 10 to withdraw the product through the hydraulic cylinder 5, thereby realizing the separation of the product from the movable template 3 and completing the demoulding of the entire product. Compared with the prior art, the demoulding mechanism of the present application can avoid the problem of ejection lines caused by using other components to eject the product, thereby improving the appearance of the product.

[0050] Specific working process: During injection molding, the female template 2 is assembled with the male template 1 and the movable template 3. At this time, the female template 2 abuts against the movable template 3, and the female template 2 squeezes the movable template 3 to move toward the male template 1, thereby squeezing a plurality of springs 41. The plurality of springs 41 are squeezed and compressed to the male template 1 to store force;

[0051] When it is necessary to open the mold and take out the product, the female template 2 is opened, and the movable template 3, the plurality of springs 41 and the product are all separated from the restriction of the female template 2. At this time, the plurality of springs 41 pop up and push the movable template 3 to move to the side away from the male template 1, thereby driving the product to pop up and separate from the male template 1 for demoulding; in this process, the movable template 3 will move along the guide column 8, and the limiting groove 31 set on the movable template 3 will move along the limiting bolt 7. When the limiting bolt 7 conflicts with the bottom wall of the limiting groove 31, the limiting bolt 7 will be stuck on the bottom wall of the limiting groove 31, thereby limiting the moving stroke of the movable template 3;

[0052] After the product is separated from the male template 1 and demoulded, the hydraulic cylinder 5 is started. The telescopic rod 51 of the hydraulic cylinder 5 contracts and drives the slider 10 to move toward the fixed plate 6 in the movable cavity 32 to withdraw the product. The slider 10 is limited by the resistance force of the pressure block 33 during its movement, so as to avoid vibration during the hydraulic cylinder 5 driving the slider 10 to move and collision with the product to cause deformation, thereby ensuring the appearance of the product, so that the slider 10 can be stably withdrawn from the product, thereby achieving the purpose of separating the slider 10 from the product, thereby achieving the separation of the product from the movable template 3, and completing the demoulding of the entire product.

[0053] Example 2

[0054] Reference Figure 5 The difference between this embodiment and embodiment 1 is that the demoulding mechanism also includes a shock-absorbing pad 91, and a shock-absorbing groove 9 is provided on the side of the movable template 3 and the male template 1 close to the spring 41. The two shock-absorbing grooves 9 are arranged opposite to each other, and shock-absorbing pads 91 are provided in the shock-absorbing grooves 9. The ends of the spring 41 are both in contact with the shock-absorbing pads 91; the shock-absorbing pad 91 can reduce the rebound vibration of the spring 41 after it is ejected, thereby reducing the possibility of the product rebounding and colliding with the male template 1 after it is ejected, and further reducing the possibility of the rebound vibration of the spring 41 causing damage to the product.

[0055] The implementation principle of Example 2 is as follows: when it is necessary to open the mold and take out the product, the mother template 2 is opened, the movable template 3, the plurality of springs 41 and the product are all separated from the restriction of the mother template 2. At this time, the plurality of springs 41 pop up and push the movable template 3 to move to the side away from the male template 1. In this process, through the setting of the shock-absorbing pad 91 and the shock-absorbing groove 9, when the spring 41 pops out, since the shock-absorbing pad 91 is in direct contact with the spring 41, the shock-absorbing pad 91 can reduce the rebound vibration of the spring 41 after it pops out, thereby reducing the possibility of the product rebounding and colliding with the male template 1 after it pops out, and further reducing the possibility of the rebound vibration of the spring 41 causing damage to the product.

[0056] Example 3

[0057] Reference Figure 6 The difference between this embodiment and embodiment 1 is that a buffer pad 311 is provided on the bottom wall of the limiting groove 31, and the buffer pad 311 is fully distributed on the bottom wall of the limiting groove 31. The buffer pad 311 is in conflict with the limiting bolt 7. When the limiting bolt 7 is engaged with the limiting groove 31, the limiting bolt 7 will be in conflict with the buffer pad 311. The buffer pad 311 can prevent the limiting bolt 7 from colliding with the limiting groove 31 and being damaged when the movable template 3 pops up, thereby improving the service life and preventing the collision from generating debris and affecting the subsequent injection molding quality.

[0058] The implementation principle of Example 3 is as follows: when it is necessary to open the mold and take out the product, the mother template 2 is opened, the movable template 3, the plurality of springs 41 and the product are all separated from the restriction of the mother template 2. At this time, the plurality of springs 41 pop up and push the movable template 3 to move to the side away from the male template 1. During this process, the limiting groove 31 set on the movable template 3 will move along the limiting bolt 7. When the limiting bolt 7 is stuck in the limiting groove 31, at this time, through the setting of the buffer pad 311, the limiting bolt 7 will abut against the buffer pad 311, thereby preventing the limiting bolt 7 from colliding with the limiting groove 31 and causing damage when the movable template 3 pops up, thereby improving the service life and preventing the collision from generating debris and affecting the subsequent injection molding quality.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A demoulding mechanism, used for separating a product from a male mold plate (1) and a female mold plate (2), characterized in that: The invention comprises a movable template (3) arranged on the male template (1), wherein the male template (1), the female template (2) and the movable template (3) together form a cavity for injecting plastic material; and further comprises a rebound component (4), wherein the rebound component (4) is arranged between the male template (1) and the movable template (3), and after the female template (2) is opened, the rebound component (4) automatically pops up the movable template (3) and separates it from the male template (1), thereby driving the product to pop up and be demoulded.

2. The demoulding mechanism according to claim 1, characterized in that: The product is fixed to the movable template (3) via a sliding block (10); the movable template (3) is also provided with a hydraulic cylinder (5); a telescopic rod (51) of the hydraulic cylinder (5) is connected to the sliding block (10); the hydraulic cylinder (5) withdraws the sliding block (10) from the product.

3. The demoulding mechanism according to claim 2, characterized in that: The movable template (3) is provided with a movable cavity (32), the hydraulic cylinder (5) is installed on the movable template (3) via a fixed plate (6), the telescopic rod (51) of the hydraulic cylinder (5) passes through the fixed plate (6) and is inserted into the movable cavity (32) to be connected with the sliding block (10), and the sliding block (10) slides in the movable cavity (32).

4. The demoulding mechanism according to claim 3, characterized in that: A pressing block (33) is provided on each opposite side of the movable cavity (32). The pressing block (33) is arranged along the moving direction of the sliding block (10). The sliding block (10) and the pressing block (33) are in sliding contact with each other.

5. The demoulding mechanism according to claim 1, characterized in that: The rebound assembly (4) comprises a plurality of springs (41), one side of each of the plurality of springs (41) being in contact with the male template (1), and the other side of each of the plurality of springs (41) being in contact with the movable template (3).

6. The demoulding mechanism according to claim 5, characterized in that: It also includes a shock-absorbing pad (91), and the movable template (3) and the male template (1) are both provided with a shock-absorbing groove (9) on one side close to the spring (41), and the shock-absorbing pad (91) is arranged in the shock-absorbing groove (9), and the end of the spring (41) is in contact with the shock-absorbing pad (91).

7. The demoulding mechanism according to claim 1, characterized in that: It also includes a limiting bolt (7), and a limiting groove (31) is provided on the movable template (3). The limiting bolt (7) is arranged on the male template (1) and passes through the movable template (3) and is inserted into the limiting groove (31). The limiting groove (31) slides along the limiting bolt (7). After the movable template (3) pops up, the limiting bolt (7) is stuck in the limiting groove (31).

8. The demoulding mechanism according to claim 7, characterized in that: A buffer pad (311) is provided on the bottom wall of the limiting groove (31), and the buffer pad (311) abuts against the limiting bolt (7).

9. The demoulding mechanism according to claim 1, characterized in that: It also comprises a guide column (8), wherein the guide column (8) is arranged on the male template (1) and passes through the movable template (3), and the movable template (3) slides along the guide column (8).

10. An injection mold, characterized in that: The demoulding mechanism comprises the demoulding mechanism described in any one of claims 1 to 9.

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