Movable mold elastic block type side core-pulling demolding mechanism for precise plastic part and correction method

Abstract

The invention belongs to the field of precise plastic part demolding, and particularly relates to a movable mold elastic block type side core-pulling demolding mechanism for precise plastic parts and a correction method. Supporting rods are fixedly connected to the positions, close to the corners, of the top end of the base as well, the top ends of the supporting rods are fixedly connected with the bottom end of the operation table, and a side core-pulling demolding mechanism is arranged above the base. The side core-pulling demolding mechanism comprises side molds, and the side molds are arranged on the left side and the right side of the top end of the operation table; through the design of the side core-pulling demolding mechanism, the demolding function in a side core-pulling mode is achieved, and the problems that an existing device is not provided with an assembly capable of being used for demolding special-shaped precise plastic parts, the device can only eject out the plastic parts in the mold, demolding cannot be conducted through the side core-pulling method, and the demolding efficiency is low are solved. And therefore, the problem that the existing device is poor in applicability is solved, and the applicability is improved.

Description

Technical Field

[0001] The present invention relates to the field of demolding of precision plastic parts, and specifically to a moving die elastic block type side core-pulling demolding mechanism and correction method for precision plastic parts. Background Art

[0002] Precision plastic parts refer to plastic components manufactured using high-precision molds and molding processes, with strict requirements for dimensions, shapes, surface quality, and functionality, and are usually used in fields with high requirements for precision and performance.

[0003] For the existing demolding mechanism, reference can be made to a plastic part injection mold with a demolding mechanism with a publication number of CN214982935U, which includes a base. Cylinders are symmetrically arranged at the top of the base. The output ends of the cylinders are provided with fixing plates. The bottom of the fixing plates is provided with an upper module. First chutes are symmetrically opened inside the fixing plates. Fixing rods are arranged on the inner walls of the first chutes. Clamping plates are slidably connected to the outer sides of the fixing rods. First springs are sleeved on the outer sides of the fixing rods and on one side of the clamping plates. First support rods are symmetrically arranged at the top of the base and between the two cylinders. The tops of the first support rods are provided with a lower module. The beneficial effects of the present invention are as follows: The structure of the present invention is novel, the operation is simple, and it is easy to get started. It is not only structurally compact but also more practical. Compared with traditional devices, the present invention can demold the molded plastic products faster and in one go after the mold processes the plastic products, which not only improves work efficiency but also improves the product qualification rate, and is more conducive to popularization and use;

[0004] The above-mentioned device does not have a component that can be used to demold special-shaped precision plastic parts. The above-mentioned device can only eject the plastic parts inside the mold and cannot demold by the method of side core-pulling, resulting in poor applicability of the existing device. Therefore, a moving die elastic block type side core-pulling demolding mechanism and correction method for precision plastic parts are proposed to solve the above problems. Summary of the Invention

[0005] In order to solve the problem that the existing device does not have a component that can be used to demold special-shaped precision plastic parts, the above-mentioned device can only eject the plastic parts inside the mold and cannot demold by the method of side core-pulling, resulting in poor applicability of the existing device, the present invention proposes a moving die elastic block type side core-pulling demolding mechanism and correction method for precision plastic parts.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A moving die elastic block type side core-pulling demolding mechanism for precision plastic parts according to the present invention includes a base; support rods are also fixedly connected to the positions near the corners at the top of the base, the tops of the support rods are fixedly connected to the bottom end of an operating table, and a side core-pulling demolding mechanism is arranged above the base;

[0007] The side core-pulling and demolding mechanism includes side molds which are arranged on the left and right sides of the top of the operation table. A first slot and a second slot are respectively formed inside the side molds and at the top of the operation table. An upper mold is arranged at the top of the side molds. A first moving insertion rod is sleeved inside the upper mold. The middle position between the top end of the first moving insertion rod and the bottom end of the second limiting block is fixedly connected. The outer side of the bottom end of the second limiting block is fixedly connected to the top of the upper mold. The bottom end of the first moving insertion rod is also inserted into the first slot and the second slot, and the first moving insertion rod is slidably connected to the first slot and the second slot.

[0008] Preferably, first fixed sleeve blocks are also fixedly connected to the left and right sides of the top of the operation table. The bottom end of the first fixed sleeve block is fixedly connected to the top of the operation table. A moving rod is sleeved inside the first fixed sleeve block, and the first fixed sleeve block is slidably connected to the moving rod. One side of the moving rod is fixedly connected to a side mold.

[0009] Preferably, the other side of the moving rod is fixedly connected to a first limiting block. A return spring is sleeved outside the moving rod. One end of the return spring is fixedly connected to the first limiting block, and the other end of the return spring is fixedly connected to the first fixed sleeve block.

[0010] Preferably, guiding blocks are also fixedly connected to the front and rear ends of the side molds. Guiding chutes are also formed at the front and rear ends of the left and right sides of the top of the operation table. The bottom end of the guiding block is inserted into the guiding chute, and the guiding block is slidably connected to the guiding chute.

[0011] Preferably, a lower mold is arranged at the bottom of the operation table. The top end of the lower mold is fixedly connected to the top end of a second moving insertion rod. The top end of the second moving insertion rod is inserted into the operation table, and the second moving insertion rod is slidably connected to the operation table.

[0012] Preferably, the top end of the base is fixedly connected to the bottom end of a fixed table. The rear end inside the fixed table is fixedly connected to the front end of a motor. The rear end of the motor is fixedly connected to the front end of a first threaded rod. The rear end of the first threaded rod is inserted into the rear end inside the fixed table, and the first threaded rod is rotatably connected to the fixed table. Moving plates are also sleeved at the front and rear ends outside the first threaded rod, and the first threaded rod is threadedly connected to the moving plates.

[0013] Preferably, the middle position at the top end of the moving plate is fixedly connected to the bottom end of a second fixed seat. The bottom end of a push rod is sleeved outside the top end of the second fixed seat, and the second fixed seat is rotatably connected to the push rod. The top end of the push rod is sleeved outside the bottom end of a third fixed seat, and the push rod is rotatably connected to the third fixed seat. The top end of the third fixed seat is fixedly connected to the bottom end of the lower mold.

[0014] Preferably, first guide rods are also arranged on the left and right sides above the base. The left and right ends of the moving plate are respectively sleeved outside the first guide rods on the left and right sides above the base, and the moving plate is slidably connected to the first guide rods. The front and rear ends of the first guide rods are also fixedly connected with first fixing blocks, and the bottom ends of the first fixing blocks are fixedly connected with the top end of the base.

[0015] Preferably, the rear end of the first threaded rod is fixedly connected to the front end of the transmission rod. The rear end of the transmission rod is fixedly connected to the front end of the first gear. The first gear is meshed and connected with the second gear. The bottom end of the second gear is fixedly connected to the top end of the rotating rod. A second fixed sleeve block is sleeved outside the bottom end of the rotating rod, and the rotating rod is rotatably connected to the second fixed sleeve block. The bottom end of the second fixed sleeve block is fixedly connected to the top end of the second fixing block. The front end of the second fixing block is fixedly connected to the rear end of the base. The top end of the second gear is fixedly connected to the bottom end of the second threaded rod. A third fixing block is sleeved at a position close to the middle of the second threaded rod, and the second threaded rod is rotatably connected to the third fixing block. The front end of the third fixing block is fixedly connected to the rear end of the operating table. A moving block is sleeved outside the second threaded rod at a position close to the upper part, and the moving block is threadedly connected to the second threaded rod. The front end of the moving block is fixedly connected to the rear end of the upper mold. The top end of the third fixing block is fixedly connected to the bottom end of the second guide rod. The top end of the second guide rod is fixedly connected to the bottom end of the fourth fixing block. The fourth fixing block is sleeved outside the top end of the second threaded rod, and the fourth fixing block is rotatably connected to the second threaded rod. The moving block is sleeved outside the second guide rod, and the moving block is slidably connected to the second guide rod.

[0016] Preferably, a moving die ejector block type side core-pulling demoulding correction method for precision plastic parts, the correction method comprising the following steps:

[0017] S1: Start the motor, drive the first threaded rod to rotate to drive the moving plate to move outward along the first threaded rod, push the push rod downward, and then the push rod drives the third fixed seat to move downward, so that the lower mold moves downward;

[0018] S2: The first threaded rod drives the first gear to rotate through the transmission rod, and then through the meshing of the first gear and the second gear, the second threaded rod rotates, and drives the moving block to move upward along the second threaded rod, pushing the upper mold to rise. The first moving plug rod moves upward with the upper mold and slides along the first slot and the second slot, forcing the side mold to move outward, and at the same time releasing the pressure on the return spring, and the return spring rebounds and disengages from the side wall of the plastic part;

[0019] S3: The guide block slides along the guide chute to ensure the stable movement of the side mold. The second moving plug rod moves downward with the lower mold and completely disengages from the inner wall of the plastic part to complete demoulding;

[0020] S4: Start the motor, rotate the first threaded rod in the reverse direction to return the moving plate to its original position. The upper mold moves down with the moving block, the first moving insertion rod is reinserted into the first and second slots, the side mold is reset, the lower mold rises, and the second moving insertion rod re-enters the inner cavity of the plastic part to prepare for the next injection molding.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. Through the structural design of the side core-pulling demolding mechanism, the present invention realizes the demolding function with the side core-pulling method, solves the problem that the existing device does not have a component for demolding special-shaped precision plastic parts, and the above-mentioned device can only eject the plastic parts inside the mold and cannot demold by the side core-pulling method, resulting in poor applicability of the existing device, and improves the applicability.

[0023] 2. Through the structural design of the core-pulling demolding mechanism, the present invention realizes the function of quickly demolding the inner wall of the precision plastic part, solves the problem that when demolding operation is required inside the precision plastic part, the existing device cannot quickly demold between the mold and the inner wall of the precision plastic part and requires manual operation, thus increasing the workload, and improves the work efficiency.

[0024] 3. Through the structural design of the return spring, the present invention realizes the function of demolding in a process, solves the problem that when demolding, an outward force can be applied to the mold in advance to prevent jamming during the upward movement of demolding, improves the processability during demolding, reduces the jamming problem, and improves the smoothness. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is the first three-dimensional structure schematic diagram of the present invention;

[0027] Figure 2 It is the partial sectional structure schematic diagram of the present invention;

[0028] Figure 3 It is the structure schematic diagram of the first demolding component of the present invention;

[0029] Figure 4 It is the structure schematic diagram of the second demolding component of the present invention;

[0030] Figure 5Schematic diagram of the third demoulding component structure of the present invention;

[0031] Figure 6 Schematic diagram of the second three-dimensional structure of the present invention;

[0032] Figure 7 Schematic diagram of the fourth demoulding component structure of the present invention;

[0033] Figure 8 Schematic diagram of the fifth demoulding component structure of the present invention;

[0034] Figure 9 Schematic diagram of the third three-dimensional structure of the present invention;

[0035] Figure 10 Schematic diagram of the method flow of the present invention.

[0036] In the figure: 1, base; 2, support rod; 3, operating table; 10, first fixed sleeve block; 11, moving rod; 12, side mold; 13, return spring; 14, first limit block; 15, upper mold; 16, first moving insertion rod; 17, second limit block; 18, second moving insertion rod; 19, guide block; 20, guide chute; 21, fixed table; 22, motor; 23, first threaded rod; 24, moving plate; 25, second fixed seat; 26, push rod; 27, third fixed seat; 28, first guide rod; 29, first fixed block; 30, transmission rod; 31, first gear; 32, second gear; 33, rotating rod; 34, second fixed sleeve block; 35, second fixed block; 36, second threaded rod; 37, third fixed block; 38, fourth fixed block; 39, second guide rod; 40, moving block; 41, first slot; 42, second slot; 43, lower mold. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Embodiment 1

[0039] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 , Figure 9As shown in the figure, a moving die slider type side core-pulling demoulding mechanism and correction method for precision plastic parts, including a base 1; a support rod 2 is also fixedly connected to the top of the base 1 near the corner position, the top of the support rod 2 is fixedly connected to the bottom of the operating table 3, and a side core-pulling demoulding mechanism is arranged above the base 1;

[0040] The side core-pulling demoulding mechanism includes side moulds 12, which are arranged on the left and right sides of the top of the operating table 3. A first slot 41 and a second slot 42 are respectively opened inside the side moulds 12 and at the top of the operating table 3. An upper mould 15 is arranged at the top of the side moulds 12. A first moving insertion rod 16 is sleeved inside the upper mould 15. The top of the first moving insertion rod 16 is fixedly connected to the middle position of the bottom of the second limiting block 17. The outside of the bottom of the second limiting block 17 is fixedly connected to the top of the upper mould 15. The bottom of the first moving insertion rod 16 is also inserted inside the first slot 41 and the second slot 42, and the first moving insertion rod 16 is slidably connected to the first slot 41 and the second slot 42. The first moving insertion rod 16 is designed as a circular rod;

[0041] Furthermore, first fixed sleeve blocks 10 are also fixedly connected to the left and right sides of the top of the operating table 3. The bottom of the first fixed sleeve blocks 10 is fixedly connected to the top of the operating table 3. A moving rod 11 is sleeved inside the first fixed sleeve blocks 10, and the first fixed sleeve blocks 10 are slidably connected to the moving rod 11. The inner wall of the first fixed sleeve blocks 10 is designed as a circle. One side of the moving rod 11 is fixedly connected to the side mould 12;

[0042] Furthermore, the other side of the moving rod 11 is fixedly connected to the first limiting block 14. A return spring 13 is sleeved outside the moving rod 11. One end of the return spring 13 is fixedly connected to the first limiting block 14. The first limiting block 14 is designed as a circle, and the other end of the return spring 13 is fixedly connected to the first fixed sleeve block 10;

[0043] Furthermore, guide blocks 19 are also fixedly connected to the front and rear ends of the side moulds 12. Guide chutes 20 are respectively opened at the front and rear ends of the left and right sides of the top of the operating table 3. The bottom of the guide block 19 is inserted inside the guide chute 20, and the guide block 19 is slidably connected to the guide chute 20. The lower part of the guide block 19 is designed as a circular rod;

[0044] Furthermore, a lower mould 43 is arranged at the bottom of the operating table 3. The top of the lower mould 43 is fixedly connected to the top of the second moving insertion rod 18. The top of the second moving insertion rod 18 is inserted inside the operating table 3, and the second moving insertion rod 18 is slidably connected to the operating table 3. The second moving insertion rod 18 is designed as a circular rod;

[0045] During operation, when the upper mold 15 moves upward, it drives the second limit block 17 to move synchronously, and the second limit block 17 drives the first moving insertion rod 16 to move upward. When the first moving insertion rod 16 moves upward, the first moving insertion rod 16 will move outward along the inside of the first slot 41 and the second slot 42. At the same time, when the first moving insertion rod 16 moves upward and gradually enters the first slot 41, it drives the side mold 12 to move outward. When the side mold 12 moves, it drives the moving rod 11 to move synchronously, and the moving rod 11 moves outward along the inside of the first fixed sleeve block 10. At the same time, when the moving rod 11 moves outward, the reset spring 13 is in a contracted state at this time. Therefore, when the moving rod 11 moves outward, the reset spring 13 will automatically rebound. At the same time, the moving rod 11 drives the first limit block 14 to move until the side mold 12 above the operating table 3 completely moves to the side end position at the top of the operating table 3 after the first moving insertion rod 16 completely disengages from the inside of the second slot 42 and the first slot 41. Thus, the inner wall of the side mold 12 will be separated from the side end of the precision plastic part. At the same time, during the movement of the side mold 12, it will drive the guide blocks 19 at the front and rear ends of the side mold 12 to move outward along the inside of the guide chute 20. At the same time, when the lower mold 43 moves downward, the lower mold 43 will drive the second moving insertion rod 18 to move simultaneously, and the second moving insertion rod 18 will move downward along the inside of the operating table 3. At the same time, when the top of the second moving insertion rod 18 moves downward, it will gradually disengage from the inner wall of the precision plastic part until the outside of the top of the second moving insertion rod 18 completely disengages from the inner wall of the precision plastic part, and the precision plastic part will be completely demolded successfully.

[0046] Embodiment 2

[0047] Please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 10 As shown in, as another implementation manner of the present invention compared with Embodiment 1, the top end of the base 1 is fixedly connected to the bottom end of the fixed table 21. The rear end inside the fixed table 21 is fixedly connected to the front end of the motor 22. The rear end of the motor 22 is fixedly connected to the front end of the first threaded rod 23. The rear end of the first threaded rod 23 is inserted into the rear end inside the fixed table 21, and the first threaded rod 23 is rotationally connected to the fixed table 21. The front and rear ends on the outside of the first threaded rod 23 are also sleeved with moving plates 24, and the first threaded rod 23 is threadedly connected to the moving plates 24.

[0048] Further, the middle position at the top end of the moving plate 24 is fixedly connected to the bottom end of the second fixed seat 25. The outer side of the top end of the second fixed seat 25 is sleeved with the bottom end of the push rod 26, and the second fixed seat 25 is rotatably connected to the push rod 26. The top end of the push rod 26 is sleeved with the outer side of the bottom end of the third fixed seat 27, and the push rod 26 is rotatably connected to the third fixed seat 27. The inner wall of the push rod 26 is designed as a circle. The top end of the third fixed seat 27 is fixedly connected to the bottom end of the lower mold 43;

[0049] Further, first guide rods 28 are also arranged on the left and right sides above the base 1. The left and right ends of the moving plate 24 are respectively sleeved with the outer sides of the first guide rods 28 on the left and right sides above the base 1, and the moving plate 24 is slidably connected to the first guide rods 28. The front and rear ends of the first guide rods 28 are also fixedly connected to first fixing blocks 29, and the bottom ends of the first fixing blocks 29 are fixedly connected to the top end of the base 1;

[0050] Further, the rear end of the first threaded rod 23 is fixedly connected to the front end of the transmission rod 30. The rear end of the transmission rod 30 is fixedly connected to the front end of the first gear 31. The first gear 31 is meshed with the second gear 32. The bottom end of the second gear 32 is fixedly connected to the top end of the rotating rod 33. The outer side of the bottom end of the rotating rod 33 is sleeved with the second fixed sleeve block 34, and the rotating rod 33 is rotatably connected to the second fixed sleeve block 34. The bottom end of the second fixed sleeve block 34 is fixedly connected to the top end of the second fixing block 35. The front end of the second fixing block 35 is fixedly connected to the rear end of the base 1. The top end of the second gear 32 is fixedly connected to the bottom end of the second threaded rod 36. The second threaded rod 36 is sleeved with the third fixing block 37 near the middle position, and the second threaded rod 36 is rotatably connected to the third fixing block 37. The front end of the third fixing block 37 is fixedly connected to the rear end of the operating table 3. The outer side of the second threaded rod 36 near the upper position is sleeved with a moving block 40, and the second threaded rod 36 is threadedly connected to the moving block 40. The front end of the moving block 40 is fixedly connected to the rear end of the upper mold 15. The top end of the third fixing block 37 is fixedly connected to the bottom end of the second guide rod 39. The top end of the second guide rod 39 is fixedly connected to the bottom end of the fourth fixing block 38. The fourth fixing block 38 is sleeved with the outer side of the top end of the second threaded rod 36, and the fourth fixing block 38 is rotatably connected to the second threaded rod 36. The moving block 40 is sleeved with the second guide rod 39, and the moving block 40 is slidably connected to the second guide rod 39. The second guide rod 39 is designed as a circular rod;

[0051] Further, a dynamic mold ejector block type side core pulling demoulding correction method for precision plastic parts, the correction method comprising the following steps:

[0052] S1: Start the motor 22, drive the first threaded rod 23 to rotate to drive the moving plate 24 to move outward along the first threaded rod 23, push the push rod 26 downward, and then the push rod 26 drives the third fixed seat 27 to move downward, so that the lower mold 43 moves downward;

[0053] S2: The first threaded rod 23 drives the first gear 31 to rotate through the transmission rod 30. Then, the first gear 31 meshes with the second gear 32 to make the second threaded rod 36 rotate, driving the moving block 40 to move upward along the second threaded rod 36, pushing the upper mold 15 to rise. The first moving plug rod 16 moves upward with the upper mold 15 and slides along the first slot 41 and the second slot 42, forcing the side mold 12 to move outward. At the same time, the pressure on the return spring 13 is released, and the return spring 13 rebounds, disengaging from the side wall of the plastic part.

[0054] S3: The guiding block 19 slides along the guiding chute 20 to ensure the smooth movement of the side mold 12. The second moving plug rod 18 moves downward with the lower mold 43 and completely disengages from the inner wall of the plastic part to complete the demolding.

[0055] S4: Start the motor 22 to reverse-rotate the first threaded rod 23, causing the moving plate 24 to return to its original position. The upper mold 15 moves downward with the moving block 40. The first moving plug rod 16 re-inserts into the first slot 41 and the second slot 42, the side mold 12 resets, the lower mold 43 rises, and the second moving plug rod 18 re-enters the inner cavity of the plastic part to prepare for the next injection molding.

[0056] During operation, first start the motor 22 inside the fixed table 21 to drive the first threaded rod 23 to rotate. When the first threaded rod 23 rotates, the first threaded rod 23 drives the moving plates 24 at the front and rear outer sides to simultaneously move outward along the outer side of the first threaded rod 23. When the moving plates 24 move outward, they drive the second fixed seats 25 to move simultaneously, and the second fixed seats 25 drive the push rods 26 to move. At the same time, the bottom end of the push rod 26 rotates along the outer side of the second fixed seat 25, and the top end of the push rod 26 rotates along the inside of the third fixed seat 27 and drives the third fixed seat 27 to move downward. At the same time, the third fixed seat 27 drives the lower mold 43 to move downward. At the same time, during the movement of the moving plates 24, the moving plates 24 also move along the outer side of the first guiding rod 28, and the first fixing block 29 is used to fixedly support the position of the first guiding rod 28. At the same time, when the first threaded rod 23 rotates, it drives the transmission rod 30 and the first gear 31 to rotate synchronously. When the first gear 31 rotates, it drives the second gear 32 and the rotating rod 33 to rotate simultaneously. The outer side of the bottom end of the rotating rod 33 rotates along the inside of the second fixed sleeve block 34, and the second fixing block 35 is used to fix the position of the second fixed sleeve block 34. When the second gear 32 rotates, it drives the second threaded rod 36 at the top to rotate, and the second threaded rod 36 rotates along the inside of the third fixing block 37 and the fourth fixing block 38. During the rotation of the second threaded rod 36, it drives the moving block 40 and the upper mold 15 to move upward simultaneously. During the movement of the moving block 40, it also moves along the outer side of the second guiding rod 39.

[0057] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A moving die ejector block type side core-pulling demolding mechanism for precision plastic parts, comprising a base (1); characterized in that: At the position near the corner at the top of the base (1), a support rod (2) is also fixedly connected. The top of the support rod (2) is fixedly connected to the bottom of the operating table (3). Above the base (1), a side core-pulling demolding mechanism is provided. The side core-pulling demolding mechanism includes side molds (12). The side molds (12) are arranged on the left and right sides at the top of the operating table (3). A first slot (41) and a second slot (42) are respectively formed inside the side molds (12) and at the top of the operating table (3). An upper mold (15) is arranged at the top of the side molds (12). A first moving insertion rod (16) is sleeved inside the upper mold (15). The top of the first moving insertion rod (16) is fixedly connected to the middle position at the bottom of the second limiting block (17). The outer side at the bottom of the second limiting block (17) is fixedly connected to the top of the upper mold (15). The bottom of the first moving insertion rod (16) is also inserted into the first slot (41) and the second slot (42), and the first moving insertion rod (16) is slidably connected to the first slot (41) and the second slot (42).

2. The moving die ejector block type side core-pulling demolding mechanism for precision plastic parts according to claim 1, characterized in that: On the left and right sides at the top of the operating table (3), first fixed sleeve blocks (10) are also fixedly connected. The bottom of the first fixed sleeve blocks (10) is fixedly connected to the top of the operating table (3). A moving rod (11) is sleeved inside the first fixed sleeve blocks (10), and the first fixed sleeve blocks (10) are slidably connected to the moving rod (11). One side of the moving rod (11) is fixedly connected to the side mold (12).

3. The moving die ejector block type side core-pulling demolding mechanism for precision plastic parts according to claim 2, characterized in that: The other side of the moving rod (11) is fixedly connected to the first limiting block (14). A return spring (13) is sleeved outside the moving rod (11). One end of the return spring (13) is fixedly connected to the first limiting block (14), and the other end of the return spring (13) is fixedly connected to the first fixed sleeve block (10).

4. A moving die ejector block type side core-pulling demolding mechanism for precision plastic parts according to claim 3, characterized in that: Guide blocks (19) are also fixedly connected to the front and rear ends of the side molds (12). Guide chutes (20) are also formed at the front and rear ends on the left and right sides at the top of the operating table (3). The bottom of the guide blocks (19) is inserted into the guide chutes (20), and the guide blocks (19) are slidably connected to the guide chutes (20).

5. The moving die ejector block type side core-pulling demolding mechanism for precision plastic parts according to claim 4, characterized in that: A lower mold (43) is arranged at the bottom of the operating table (3). The top of the lower mold (43) is fixedly connected to the top of the second moving insertion rod (18). The top of the second moving insertion rod (18) is inserted into the operating table (3), and the second moving insertion rod (18) is slidably connected to the operating table (3).

6. The moving die ejector block type side core-pulling demolding mechanism for precision plastic parts according to claim 5, characterized in that: The top of the base (1) is fixedly connected to the bottom of the fixed table (21). The rear end inside the fixed table (21) is fixedly connected to the front end of the motor (22). The rear end of the motor (22) is fixedly connected to the front end of the first threaded rod (23). The rear end of the first threaded rod (23) is inserted into the rear end inside the fixed table (21), and the first threaded rod (23) is rotatably connected to the fixed table (21). Moving plates (24) are also sleeved on the front and rear ends outside the first threaded rod (23), and the first threaded rod (23) is threadedly connected to the moving plates (24).

7. The moving die ejector block type side core-pulling demoulding mechanism for precision plastic parts according to claim 6, characterized in that: The middle position at the top end of the moving plate (24) is fixedly connected to the bottom end of the second fixed seat (25). The outer side of the top end of the second fixed seat (25) is sleeved with the bottom end of a push rod (26), and the second fixed seat (25) is rotatably connected to the push rod (26). The top end of the push rod (26) is sleeved on the outer side of the bottom end of the third fixed seat (27), and the push rod (26) is rotatably connected to the third fixed seat (27). The top end of the third fixed seat (27) is fixedly connected to the bottom end of the lower mold (43).

8. A moving die ejector block type side core-pulling demolding mechanism for precision plastic parts according to claim 7, characterized in that: On the left and right sides above the base (1), first guide rods (28) are also provided. The left and right ends of the moving plate (24) are respectively sleeved on the outer sides of the first guide rods (28) on the left and right sides above the base (1), and the moving plate (24) is slidably connected to the first guide rods (28). The front and rear ends of the first guide rods (28) are also fixedly connected with first fixing blocks (29), and the bottom ends of the first fixing blocks (29) are fixedly connected to the top end of the base (1).

9. The moving die ejector block type side core-pulling demolding mechanism for precision plastic parts according to claim 8, wherein: The rear end of the first threaded rod (23) is fixedly connected to the front end of a transmission rod (30). The rear end of the transmission rod (30) is fixedly connected to the front end of a first gear (31). The first gear (31) is meshed and connected with a second gear (32). The bottom end of the second gear (32) is fixedly connected to the top end of a rotating rod (33). The outer side of the bottom end of the rotating rod (33) is sleeved with a second fixed sleeve block (34), and the rotating rod (33) is rotatably connected to the second fixed sleeve block (34). The bottom end of the second fixed sleeve block (34) is fixedly connected to the top end of a second fixing block (35). The front end of the second fixing block (35) is fixedly connected to the rear end of the base (1). The top end of the second gear (32) is fixedly connected to the bottom end of a second threaded rod (36). Near the middle position of the second threaded rod (36), a third fixing block (37) is sleeved, and the second threaded rod (36) is rotatably connected to the third fixing block (37). The front end of the third fixing block (37) is fixedly connected to the rear end of an operating table (3). Near the upper position of the second threaded rod (36), a moving block (40) is sleeved on the outer side, and the second threaded rod (36) is threadedly connected to the moving block (40). The front end of the moving block (40) is fixedly connected to the rear end of the upper mold (15). The top end of the third fixing block (37) is fixedly connected to the bottom end of a second guide rod (39). The top end of the second guide rod (39) is fixedly connected to the bottom end of a fourth fixing block (38). The fourth fixing block (38) is sleeved on the top end of the second threaded rod (36), and the fourth fixing block (38) is rotatably connected to the second threaded rod (36). The moving block (40) is sleeved on the outer side of the second guide rod (39), and the moving block (40) is slidably connected to the second guide rod (39).

10. A dynamic mold ejector block type side core-pulling demolding correction method for precision plastic parts, characterized in that: Comprising a moving die ejector block type side core-pulling and demolding mechanism for precision plastic parts according to any one of claims 1-9, the correction method comprises the following steps: S1: Start the motor (22), drive the first threaded rod (23) to rotate, drive the moving plate (24) to move outward along the first threaded rod (23), push the push rod (26) downward, and then the push rod (26) drives the third fixed seat (27) downward, causing the lower mold (43) to move downward; S2: The first threaded rod (23) drives the first gear (31) to rotate through the transmission rod (30), and then through the meshing of the first gear (31) and the second gear (32), the second threaded rod (36) rotates, driving the moving block (40) to move upward along the second threaded rod (36), pushing the upper mold (15) to rise. The first moving insertion rod (16) moves upward with the upper mold (15) and slides along the first slot (41) and the second slot (42), forcing the side mold (12) to move outward, while releasing the pressure on the return spring (13), and the return spring (13) rebounds, disengaging from the side wall of the plastic part; S3: The guide block (19) slides along the guide chute (20) to ensure the smooth movement of the side mold (12). The second moving insertion rod (18) moves downward with the lower mold (43) and completely disengages from the inner wall of the plastic part to complete demolding; S4: Start the motor (22), reverse-rotate the first threaded rod (23), cause the moving plate (24) to return to its original position, the upper mold (15) moves downward with the moving block (40), the first moving insertion rod (16) re-inserts into the first slot (41) and the second slot (42), the side mold (12) resets, the lower mold (43) rises, and the second moving insertion rod (18) re-enters the inner cavity of the plastic part to prepare for the next injection molding.

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