An injection mold

Abstract

The application belongs to the technical field of molds, and particularly discloses an injection mold which comprises an upper mold plate and a lower mold plate, a mold frame is arranged between the upper mold plate and the lower mold plate, the upper mold plate and the lower mold plate clamp the mold frame, plastic raw materials enter the mold frame through the through hole at the top of the upper mold plate, a plurality of side frames are fixed to the top surface of the lower mold plate, a lifting assembly for lifting the upper mold plate and the mold frame is arranged in the side frame, and a push assembly is arranged on the front and rear sides of the mold frame. The rotation of the screw rod makes the upper mold plate move away from the mold frame, the upper mold plate and the circular plate make the vertical rod and the chuck move upward, the vertical rod that moves upward makes the chuck gradually enter the inner groove by the chamfered surface, at this time, the chuck cannot be buckled with the groove, at this time, the reverse rotation of the rotating sleeve makes the pressing plate move away from the formed product, and the product is convenient to separate from the mold frame.

Description

Technical Field

[0001] This invention belongs to the field of mold technology, and specifically relates to an injection mold. Background Technology

[0002] Injection molds are tools used to produce plastic products; they also give plastic products their complete structure and precise dimensions. Specifically, they involve injecting molten plastic into an injection mold under high pressure using an injection molding machine, where it cools and solidifies to obtain the molded product.

[0003] A mold is composed of various parts, and different molds are composed of different parts. It mainly achieves the processing of the shape of an object by changing the physical state of the material being molded. However, existing hot molds are relatively troublesome to demold after molding, which is time-consuming and labor-intensive.

[0004] Therefore, it is necessary to invent an injection mold to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an injection mold to solve the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an injection mold, comprising an upper mold plate and a lower mold plate, wherein a mold frame is provided between the upper mold plate and the lower mold plate, the upper mold plate and the lower mold plate cooperate to clamp the mold frame, and plastic raw material enters the mold frame through a through-hole at the top of the upper mold plate. Multiple side frames are fixed on the top surface of the lower mold plate, and lifting components for lifting the upper mold plate and the mold frame are provided inside the side frames. Pushing components are provided on both the front and rear sides of the mold frame. Each pushing component includes: a pressure plate, a push rod, a first elastic element, a rotating sleeve, and a retaining edge. The pressure plate is located inside the mold frame, with its top surface fitting against the bottom surface of the upper mold plate, its bottom surface fitting against the top surface of the lower mold plate, and its end face fitting against the inner sidewall of the mold frame. A push rod penetrates the end face of the mold frame via the outer side of the pressure plate. A first elastic element is sleeved on the surface of the push rod, connecting the outer side of the pressure plate to the inner sidewall of the mold frame. A rotating sleeve is spirally sleeved on the outer end of the push rod, and a retaining edge is fixed on the end face of the mold frame to limit the rotating sleeve, used to adjust the shape of the product inside the mold frame.

[0007] Furthermore, the four sides of the upper template and the four sides of the mold frame are respectively provided with a first notch and a second notch, and the side frames are correspondingly snapped into the first notch and the second notch.

[0008] Furthermore, the lifting assembly includes: a screw, a first convex plate, and a second convex plate; the screw vertically penetrates the side frame and the lower template, and the front and rear second slots of the template are each provided with a second convex plate, which is spirally sleeved on the surface of the screw; the left and right first slots of the upper template are each provided with a first convex plate, which is spirally sleeved on the surface of the screw.

[0009] Furthermore, the top surface of the push rod is provided with a sliding groove, and a vertical rod is vertically inserted into the top of the sliding groove. The front and rear end faces of the mold frame are provided with slots corresponding to the push rod, and the push rod is limited by a locking component. The locking component includes: a locking head and a second elastic member. The bottom end of the vertical rod is provided with two opposing locking heads, and the bottom end of the vertical rod is provided with an inner groove. The inner end of the locking head is located inside the inner groove, and the two opposing locking heads are connected by the second elastic member. The sliding groove is provided with multiple grooves corresponding to the locking heads. The elastic force of the second elastic member causes the outer end of the locking head to be locked inside the groove.

[0010] Furthermore, the outer wall of the groove is set as an inclined surface, and the inner wall of the groove is set as a stop surface. The groove uses the stop surface to limit the clamp head, and the inwardly moving push rod slides on the outer end of the clamp head using the inclined surface.

[0011] Furthermore, the top of the card head is provided with a chamfered surface, which fits against the inner sidewall of the slot.

[0012] Furthermore, both the upper template and the top surface of the mold frame are provided with vertical grooves corresponding to the vertical rods, and the upward-moving mold frame uses push rods to drive the vertical rods to move upward synchronously.

[0013] Furthermore, a circular plate is fixed to the top of the vertical rod, and the bottom surface of the circular plate is in contact with the top surface of the upper template. The moving upper template uses the circular plate to make the vertical rod move upward inside the vertical groove of the mold frame.

[0014] The technical effects and advantages of this invention are as follows:

[0015] 1. This invention uses the rotation of the screw to move the upper template away from the mold frame. The upper template and the circular plate move the vertical rod and the clamp head upward. The upward-moving vertical rod uses the chamfered surface to make the clamp head gradually enter the inner groove. At this time, the clamp head cannot engage with the groove. At this time, the reverse rotation of the rotating sleeve moves the pressure plate away from the formed product, making it easier for the product to be removed from the mold frame.

[0016] 2. The present invention facilitates the use of a rotating sleeve and a push rod in a spiral engagement, allowing two pressure plates to pressurize and melt the plastic material. Furthermore, the clamping head uses the grooved surface to limit the push rod, preventing the push rod from moving outward due to simple rotation of the rotating sleeve. This increases the molding time of the plastic material inside the injection mold and ensures the molding effect of the plastic material. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall injection mold according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of multiple side frames fixed to the top of the lower template in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the upper template in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the overall module frame according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the pushing component structure according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the inner end of the card head in an embodiment of the present invention being located inside the inner groove of the vertical rod;

[0023] Figure 7 This is a schematic diagram of the push rod penetrating the end face of the mold frame according to an embodiment of the present invention;

[0024] In the diagram: 1. Upper template; 101. Through opening; 102. First notch; 2. Lower template; 3. Mold frame; 301. Second notch; 302. Slot; 4. Side frame; 5. Pressure plate; 6. Push rod; 601. Slide groove; 602. Groove; 7. First elastic element; 8. Rotary sleeve; 9. Edge clamp; 10. Screw; 11. First convex plate; 12. Second convex plate; 13. Vertical rod; 131. Round plate; 14. Clamp head; 141. Chamfered surface; 15. Second elastic element; 16. Vertical groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0026] This invention provides an injection mold, such as Figures 1 to 4 As shown, it includes an upper template 1 and a lower template 2. A mold frame 3 is provided between the upper template 1 and the lower template 2. The upper template 1 and the lower template 2 cooperate to clamp the mold frame 3. An opening 101 is provided at the center of the top surface of the upper template 1. Plastic raw material enters the mold frame 3 through the opening 101 at the top of the upper template 1. Multiple side frames 4 are fixed on the top surface of the lower template 2. Lifting components for lifting the upper template 1 and the mold frame 3 are provided inside the side frames 4. The four sides of the upper template 1 and the four sides of the mold frame 3 are respectively provided with a first notch 102 and a second notch 301. The side frames 4 are correspondingly snapped into the first notch 102 and the second notch 301.

[0027] The lifting assembly includes a screw 10, a first convex plate 11, and a second convex plate 12. The screw 10 vertically penetrates the side frame 4 and the lower template 2. The two second notches 301 at the front and rear of the template 3 are each provided with a second convex plate 12, which is spirally sleeved on the surface of the screw 10. The two first notches 102 at the left and right of the upper template 1 are each provided with a first convex plate 11, which is spirally sleeved on the surface of the screw 10.

[0028] Specifically, rotating the screws 10 on both sides of the lower template 2 causes the mold frame 3 to move up and down as the screws 10 rotate inside the side frame 4. The second protruding plate 12 of the mold frame 3 is spirally fitted onto the surface of the screws 10, and this spiral engagement causes the mold frame 3 to move up and down. As the mold frame 3 moves down, the second notch 301 of the mold frame 3 moves down outside the side frame 4, and the second protruding plate 12 moves inside the side frame 4 until the bottom surface of the mold frame 3 is in contact with the top surface of the lower template 2. Sealing gaskets are then attached to the top surface of the lower template 2 and the bottom surface of the mold frame 3. The spiral engagement of the screws 10 and the second protruding plate 12 ensures that there are no gaps between the top surface of the lower template 2 and the bottom surface of the mold frame 3.

[0029] Rotating the screws 10 on both sides of the lower template 2 causes the first protruding plate 11 of the upper template 1 to be spirally fitted onto the surface of the screws 10. This spiral engagement between the screws 10 and the first protruding plate 11 causes the upper template 1 to move up and down. As the upper template 1 moves downward, the first notch 102 of the upper template 1 moves downward outside the side frame 4, and the first protruding plate 11 moves inside the side frame 4 until the bottom surface of the upper template 1 is in contact with the top surface of the mold frame 3. Sealing gaskets are then attached to the bottom surface of the upper template 1 and the top surface of the mold frame 3. The spiral engagement between the screws 10 and the first protruding plate 11 ensures that there are no gaps between the bottom surface of the upper template 1 and the top surface of the mold frame 3.

[0030] When the upper mold plate 1, mold frame 3 and lower mold plate 2 are combined to form an integrated injection mold, the plastic raw material is heated and the melted plastic raw material is introduced into the injection mold through the through port 101. The melted plastic raw material is formed inside the injection mold to realize the product forming.

[0031] Rotating the screw 10 in the opposite direction causes the upper template 1 and the mold frame 3 to move upward using the first convex plate 11 and the second convex plate 12 respectively. At this time, the upper template 1 and the mold frame 3 carry the product upward synchronously until the product separates from the lower template 2. At this time, the screw 10 and the first convex plate 11 rotate and cooperate, causing the upper template 1 to separate from the mold frame 3. This makes it easy to separate the formed product from the mold frame 3, thus completing the product processing.

[0032] In this embodiment, the rotation of the screw 10, combined with the action of the first convex plate 11 and the second convex plate 12, facilitates the upper template 1, the mold frame 3 and the lower template 2 to form an integrated injection mold. The reverse rotation of the screw 10 facilitates the separation of the molded product from the mold frame 3, thus completing the processing of the product.

[0033] To achieve rapid prototyping and clamping of products, a pressing component is used to push and shape the plastic raw material. Figure 1 , Figure 4 and Figure 5In the middle, the front and rear sides of the mold frame 3 are provided with pushing components. The pushing components include: pressure plate 5, push rod 6, first elastic element 7, rotating sleeve 8 and clamping edge 9. The first elastic element 7 is set as a spring. The pressure plate 5 is located inside the mold frame 3. The top surface of the pressure plate 5 is attached to the bottom surface of the upper template 1, the bottom surface of the pressure plate 5 is attached to the top surface of the lower template 2, and the end face of the pressure plate 5 is attached to the inner side wall of the mold frame 3. The outer side of the pressure plate 5 is penetrated through the end face of the mold frame 3 by the push rod 6. The surface of the push rod 6 is sleeved with the first elastic element 7. The first elastic element 7 is connected between the outer side of the pressure plate 5 and the inner side wall of the mold frame 3. The outer end of the push rod 6 is spirally sleeved with the rotating sleeve 8, and the end face of the mold frame 3 is fixed with the clamping edge 9 that limits the rotating sleeve 8.

[0034] Specifically, after the molten plastic material is introduced into the injection mold through the port 101, the rotating sleeve 8 is rotated. Since the mold frame 3 uses the retaining edge 9 to limit the rotating sleeve 8, the rotating sleeve 8 and the push rod 6 are screwed together, causing the push rod 6 to gradually enter the mold frame 3. The inwardly moving push rod 6 pushes the pressure plate 5 to move synchronously. The inwardly moving pressure plate 5 pulls the first elastic element 7 on the surface of the push rod 6. The two opposing pressure plates 5 cooperate to squeeze the molten plastic material. The two pressure plates 5 are used to form the plastic material inside the injection mold.

[0035] By using the reverse rotation of screw 10, it is easy to separate the upper template 1 from the mold frame 3. At this time, the rotating sleeve 8 is rotated in the reverse direction. The spiral engagement between the rotating sleeve 8 and the push rod 6 makes the pressure plate 5 move away from the formed product, which facilitates the separation of the formed product from the mold frame 3.

[0036] In this embodiment, the spiral engagement between the rotating sleeve 8 and the push rod 6 facilitates the molding of products of different sizes inside the injection mold.

[0037] To limit the pressure plate 5, a locking component is used to limit the push rod 6. Figures 4 to 7 In the mold frame 3, a groove 601 is formed on the top surface of the push rod 6, and a vertical rod 13 is vertically inserted into the top of the groove 601. Slots 302 corresponding to the push rod 6 are formed on the front and rear end faces of the mold frame 3. The push rod 6 is secured by a locking component. The locking component includes a locking head 14 and a second elastic element 15, which is configured as a spring piece. Two opposing locking heads 14 are provided at the bottom end of the vertical rod 13. An inner groove is provided at the bottom end of the vertical rod 13, and the inner ends of the locking heads 14 are located inside the inner groove. The two opposing locking heads 14 are connected by the second elastic element 15. Multiple grooves 602 corresponding to the locking heads 14 are provided inside the groove 601. The elastic force of the second elastic element 15 causes the outer ends of the locking heads 14 to engage inside the grooves 602. The outer wall of the groove 602 is set as a slope, and the inner wall of the groove 602 is set as a stop. The groove 602 uses the stop to secure the locking heads 14, and the inwardly moving push rod 6 slides on the outer end of the locking heads 14 using the slope.

[0038] Specifically, when the rotating sleeve 8 causes the push rod 6 to move inward, the inward-moving push rod 6 slides on the bottom end of the vertical rod 13 using the sliding groove 601. Due to the elastic force of the second elastic element 15, the outer end of the clamp 14 engages with the groove 602. The inward-moving push rod 6 slides on the outer end of the clamp 14 using the inclined surface of the groove 602, and the groove 602 pushes the clamp 14 inward into the inner groove using the inclined surface. At this time, the two clamps 14 cooperate to squeeze the second elastic element 15 until the inward-moving push rod 6 causes the next groove 602 to engage with the clamp 14.

[0039] With the spiral engagement of the rotating sleeve 8 and the push rod 6, the two pressure plates 5 work in conjunction with the injection mold to pressurize the plastic raw material.

[0040] In this embodiment, the spiral engagement between the rotating sleeve 8 and the push rod 6 facilitates the two pressure plates 5 to pressurize and melt the plastic material. Furthermore, the clamp 14 uses the stop surface of the groove 602 to limit the push rod 6, preventing the push rod 6 from moving outward due to simple rotation of the rotating sleeve 8. This increases the molding time of the plastic material inside the injection mold and ensures the molding effect of the plastic material.

[0041] To facilitate rapid separation of the product from the mold frame 3, the upper template 1 is used to separate the vertical rod 13 from the push rod 6. Figure 1 , Figures 4 to 7 In the middle, the top of the card head 14 is provided with a chamfered surface 141, which fits against the inner sidewall of the slot 302. The top surfaces of the upper template 1 and the mold frame 3 are both provided with vertical grooves 16 corresponding to the vertical rod 13. The upward-moving mold frame 3 uses the push rod 6 to drive the vertical rod 13 to move upward synchronously. The top of the vertical rod 13 is fixed with a circular plate 131, the bottom surface of the circular plate 131 fits against the top surface of the upper template 1. The upward-moving upper template 1 uses the circular plate 131 to make the vertical rod 13 move upward inside the vertical groove 16 of the mold frame 3.

[0042] Specifically, the screw 10 rotating in the opposite direction and the screw engagement with the first convex plate 11 cause the upper template 1 to gradually separate from the mold frame 3 when it moves upward. The moving upper template 1 uses the circular plate 131 to make the vertical rod 13 move upward. The moving vertical rod 13 pulls the two clamps 14 to move upward synchronously. Since the clamps 14 use the chamfered surface 141 to fit against the inner wall of the slot 302, the moving vertical rod 13 uses the chamfered surface 141 to make the clamps 14 gradually enter the inner groove. At this time, the clamps 14 cannot engage with the groove 602. At this time, the rotating sleeve 8 rotates in the opposite direction. The screw engagement between the rotating sleeve 8 and the push rod 6 makes the pressure plate 5 move away from the molded product, making it easier for the product to be removed from the mold frame 3.

[0043] In this embodiment, the rotation of the screw 10 causes the upper template 1 to move away from the mold frame 3. The upper template 1 and the circular plate 131 cause the vertical rod 13 and the clamping head 14 to move upward. The upward-moving vertical rod 13 uses the chamfered surface 141 to cause the clamping head 14 to gradually enter the inner groove. At this time, the clamping head 14 cannot engage with the groove 602. At this time, the reverse rotation of the rotating sleeve 8 causes the pressure plate 5 to move away from the molded product, making it easier for the product to leave the mold frame 3.

[0044] Working principle of this invention:

[0045] Reference Figures 1 to 7 As shown, rotating the screws 10 on both sides of the lower template 2 causes the template 3 to move up and down as it rotates inside the side frame 4. The second protruding plate 12 of the mold frame 3 is spirally fitted onto the surface of the screws 10, causing the mold frame 3 to move vertically. When the mold frame 3 moves downward, the second notch 301 of the mold frame 3 moves downward outside the side frame 4, and the second protruding plate 12 moves inside the side frame 4 until the bottom surface of the mold frame 3 is in contact with the top surface of the lower template 2. Sealing gaskets are then attached to the top surface of the lower template 2 and the bottom surface of the mold frame 3. The spiral engagement of the screws 10 and the second protruding plate 12 ensures that there are no gaps between the top surface of the lower template 2 and the bottom surface of the mold frame 3.

[0046] Rotating the screws 10 on both sides of the lower template 2 causes the first protruding plate 11 of the upper template 1 to be spirally fitted onto the surface of the screws 10. This spiral engagement between the screws 10 and the first protruding plate 11 causes the upper template 1 to move up and down. As the upper template 1 moves downward, the first notch 102 of the upper template 1 moves downward outside the side frame 4, and the first protruding plate 11 moves inside the side frame 4 until the bottom surface of the upper template 1 is in contact with the top surface of the mold frame 3. Sealing gaskets are then attached to the bottom surface of the upper template 1 and the top surface of the mold frame 3. The spiral engagement between the screws 10 and the first protruding plate 11 ensures that there are no gaps between the bottom surface of the upper template 1 and the top surface of the mold frame 3.

[0047] When the upper mold plate 1, mold frame 3 and lower mold plate 2 are combined to form an integrated injection mold, the plastic raw material is heated and the melted plastic raw material is introduced into the injection mold through the through port 101. The melted plastic raw material is formed inside the injection mold to realize the product forming.

[0048] Rotating the rotating sleeve 8 causes the push rod 6 to move inward. The inward-moving push rod 6 slides on the bottom end of the vertical rod 13 using the sliding groove 601. Due to the elastic force of the second elastic element 15, the outer end of the clamp 14 engages with the groove 602. The inward-moving push rod 6 slides on the outer end of the clamp 14 using the inclined surface of the groove 602, and the groove 602 pushes the clamp 14 inward into the inner groove using the inclined surface. At this time, the two clamps 14 cooperate to squeeze the second elastic element 15 until the inward-moving push rod 6 causes the next groove 602 to engage with the clamp 14.

[0049] Since the mold frame 3 uses the retaining edge 9 to limit the rotating sleeve 8, the rotating sleeve 8 and the push rod 6 are screwed together, causing the push rod 6 to gradually enter the mold frame 3. The inwardly moving push rod 6 pushes the pressure plate 5 to move synchronously. The inwardly moving pressure plate 5 pulls the first elastic element 7 on the surface of the push rod 6. The two opposing pressure plates 5 cooperate to squeeze the molten plastic material. The two pressure plates 5 are used to make the plastic material form inside the injection mold.

[0050] The screw 10 is rotated in the opposite direction, and the first convex plate 11 and the second convex plate 12 move the upper template 1 and the mold frame 3 upward respectively. At this time, the upper template 1 and the mold frame 3 move upward synchronously with the product until the product separates from the lower template 2. The screw 10 rotated in the opposite direction and the screw engagement with the first convex plate 11 cause the upper template 1 to move upward and gradually separate from the mold frame 3. When the upper template 1 moves upward, the vertical rod 13 moves upward using the circular plate 131. The moving vertical rod 13 pulls the two clamps 14 upward synchronously. Since the clamps 14 are in contact with the inner wall of the slot 302 using the chamfered surface 141, the moving vertical rod 13 uses the chamfered surface 141 to make the clamps 14 gradually enter the inner groove. At this time, the clamps 14 cannot engage with the groove 602. At this time, the rotating sleeve 8 is rotated in the opposite direction. The rotating sleeve 8 and the push rod 6 engage in a screw engagement to move the pressure plate 5 away from the molded product, making it easier for the product to be removed from the mold frame 3.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. An injection mold, characterized in that: The system includes an upper template (1) and a lower template (2). A mold frame (3) is provided between the upper template (1) and the lower template (2). The upper template (1) and the lower template (2) cooperate to clamp the mold frame (3). Plastic raw material enters the mold frame (3) through the opening (101) at the top of the upper template (1). Multiple side frames (4) are fixed on the top surface of the lower template (2). Lifting components for lifting the upper template (1) and the mold frame (3) are provided inside the side frames (4). Pushing components are provided on both the front and rear sides of the mold frame (3). The pushing components include: a pressure plate (5), a push rod (6), a first elastic element (7), a rotating sleeve (8), and a retaining edge (9). The pressure plate (5) is located inside the mold frame (3). The top surface of the pressure plate (5) is attached to the bottom surface of the upper template (1), the bottom surface of the pressure plate (5) is attached to the top surface of the lower template (2), the end face of the pressure plate (5) is attached to the inner wall of the mold frame (3), the outer side of the pressure plate (5) is penetrated through the end face of the mold frame (3) by a push rod (6), the surface of the push rod (6) is sleeved with a first elastic element (7), the first elastic element (7) is connected between the outer side of the pressure plate (5) and the inner wall of the mold frame (3), the outer end of the push rod (6) is spirally sleeved with a rotating sleeve (8), and the end face of the mold frame (3) is fixed with a retaining edge (9) that limits the rotating sleeve (8), which is used to adjust the shape of the product inside the mold frame (3). The four sides of the upper template (1) and the four sides of the mold frame (3) are respectively provided with a first notch (102) and a second notch (301), and the side frame (4) is correspondingly snapped into the first notch (102) and the second notch (301); the lifting component includes: a screw (10), a first convex plate (11) and a second convex plate (12); the screw (10) vertically penetrates the side frame (4) and the lower template (2), and the two second notches (301) at the front and rear of the mold frame (3) are provided with a second convex plate (12), and the second convex plate (12) is spirally sleeved on the surface of the screw (10); the two first notches (102) on the left and right sides of the upper template (1) are provided with a first convex plate (11), and the first convex plate (11) is spirally sleeved on the surface of the screw (10); The push rod (6) has a groove (601) on its top surface. A vertical rod (13) is vertically inserted into the top of the groove (601). The front and rear ends of the mold frame (3) have slots (302) corresponding to the push rod (6). The push rod (6) is limited by a locking component. The locking component includes a locking head (14) and a second elastic member (15). The bottom end of the vertical rod (13) is provided with two opposing locking heads (14). The bottom end of the vertical rod (13) is provided with an inner groove. The inner end of the locking head (14) is inside the inner groove. The two opposing locking heads (14) are connected by the second elastic member (15). The groove (601) is provided with multiple grooves (602) corresponding to the locking heads (14). The elastic force of the second elastic member (15) makes the outer end of the locking head (14) snap into the groove (602).

2. The injection mold according to claim 1, characterized in that: The outer wall of the groove (602) is set as an inclined surface, and the inner wall of the groove (602) is set as a stop surface. The groove (602) uses the stop surface to limit the clamp head (14). The inwardly moving push rod (6) slides on the outer end of the clamp head (14) using the inclined surface.

3. The injection mold according to claim 1, characterized in that: The top of the card head (14) is provided with a chamfered surface (141), which is in contact with the inner wall of the slot (302).

4. The injection mold according to claim 3, characterized in that: The top surfaces of the upper template (1) and the mold frame (3) are provided with vertical grooves (16) corresponding to the vertical rod (13). The upward-moving mold frame (3) uses the push rod (6) to drive the vertical rod (13) to move upward synchronously.

5. The injection mold according to claim 4, characterized in that: The top of the vertical rod (13) is fixed with a circular plate (131). The bottom surface of the circular plate (131) is in contact with the top surface of the upper template (1). The upper template (1) moves upward and uses the circular plate (131) to make the vertical rod (13) move upward inside the vertical groove (16) of the mold frame (3).

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