A secondary ejection mold

Abstract

The application discloses a secondary ejection die and relates to the field of die machining.The secondary ejection die comprises a main body base, a partition plate arranged on the top of the main body base, a main ejection needle arranged in the middle of the partition plate, a demoulding material arranged on the surface of the main ejection needle, a plurality of auxiliary ejection needles arranged around the main ejection needle in the middle of the partition plate, a fixing plate movably inserted into the main ejection needle and the auxiliary ejection needles and arranged on the top of the partition plate, a loosening plate arranged on the top of the fixing plate, and a moving limiting mechanism arranged on one side of the fixing plate and the loosening plate.The moving limiting mechanism comprises extrusion blocks arranged on the two lateral sides of the loosening plate, clamping plates abuttingly arranged on the two longitudinal sides of the loosening plate, and the clamping plates are used to fix the loosening plate and the fixing plate by stretching.The top of the loosening plate is provided with a stabilizing plate, the top of the stabilizing plate is provided with a top cover, and an exhaust port is arranged in the middle of the top cover.In the secondary demoulding process, the moving limiting mechanism is linked and moved to limit the moving range of the loosening plate, so that the problem of excessive movement is avoided.

Description

Technical Field

[0001] This invention relates to the field of mold processing, and in particular to a secondary ejection mold. Background Technology

[0002] In the field of injection molding, mold technology is one of the key factors determining product quality and production efficiency. Two-stage ejection molds, as a special type of mold, are widely used in the production of plastic products with complex structures and high demolding difficulty. Through two ejection actions, they can more effectively detach the molded product from the mold cavity, improving the integrity and quality of demolding. However, in practical applications, the stability of the sheet material used to hold the material during the ejection process is particularly prominent. Especially when the overall longitudinal depth of the device is too large, excessive sheet movement frequently occurs, requiring manual maintenance and resetting, which seriously affects product quality and production efficiency. Summary of the Invention

[0003] In order to improve the problem of structural misalignment caused by excessive movement of the plate layers in the existing secondary ejection mold, which affects production efficiency and reduces product demolding quality, the present invention provides a secondary ejection mold.

[0004] The present invention provides a secondary ejection mold with the following technical solution: A secondary ejection mold includes a main body base, a partition plate on the top of the main body base, an ejector pin for secondary demolding in the middle of the partition plate, a demolding material on the surface of the ejector pin, a plurality of ejector auxiliary pins surrounding the ejector pin in the middle of the partition plate, a fixing plate on the top of the partition plate that movably intersects with the ejector pin and the ejector auxiliary pins, a release plate on the top of the fixing plate, and a movement limiting mechanism for limiting the movement of the release plate on one side of the fixing plate and the release plate. The moving limiting mechanism includes pressing blocks disposed on both sides of the inside of the release plate, and clamping plates abutting against the pressing blocks on both sides of the inside of the release plate. The clamping plates extend to fix the release plate to the fixing plate. The top of the release plate is provided with a stabilizing plate that is fixed to the main base for fixing the whole device. The top of the stabilizing plate is provided with a top cover, and the top cover has a discharge port in the middle for discharging the demolding material.

[0005] By adopting the above technical solution, the ejector pin drives the release plate to move, thereby linking the movement limit mechanism to operate synchronously. When the release plate moves a certain distance, it squeezes the compression block, thereby driving the snap-fit ​​plate to snap and fix the release plate, thus preventing the release plate from moving excessively. The ejector pin, which cancels the movement, retracts downward from the partition plate, thereby canceling the thrust applied to the release plate and forming an automatic return to the original position effect.

[0006] Preferably, connecting pillars are fixed on both sides of the partition plate, the tops of the two connecting pillars are fixed to the fixed plate, and limiting inclined blocks are arranged around the tops of the two connecting pillars. A movable plate is arranged longitudinally on the top of the partition plate, which movably passes through the ejector main pin and ejector auxiliary pin. A reset rod is arranged around the top surface of the movable plate with multiple ejector auxiliary pins.

[0007] By adopting the above technical solution, the connecting pillar is fixed to the fixed plate and the partition plate, which improves the overall stability. At the same time, the opening of the limiting inclined block provides a contact surface for the linkage squeezing action of the moving limiting mechanism. The movement of the ejector pin drives the movable plate to move upward synchronously, thereby generating pressure on the reset rod, which makes it easy to restore the original position when the ejector pin stops moving.

[0008] Preferably, the fixed plate is provided with connecting rods on both sides, which are fixed to the two connecting pillars one by one. The upper middle part of the fixed plate is fixed with a lower pressure plate for fixing the demolding material. The top of the fixed plate is provided with a plurality of limiting posts that move through the release plate around the lower pressure plate. The tops of the plurality of reset rods all pass through the fixed plate and are located inside the limiting posts and move through them.

[0009] By adopting the above technical solution, both connecting pillars are fixed to the fixed plate through connecting rods, thereby forming an overall fixed state of the fixed plate and the partition plate. The lower pressure plate fixes the bottom of the demolding material, thereby facilitating the subsequent demolding process of the top of the demolding material. The limiting pillar and the release plate move through each other, thereby limiting the longitudinal movement of the release plate.

[0010] Preferably, the loosening plate has transverse grooves on both sides, and longitudinal grooves are formed at the ends of the two transverse grooves inside the loosening plate. Reset grooves are formed at both ends of the two longitudinal grooves. Limiting grooves are formed on opposite sides of the two longitudinal grooves and at the position where the transverse grooves are aligned. The snap-fit ​​plate is movable within the longitudinal groove, and the squeezing block is movable within the transverse groove.

[0011] By adopting the above technical solution, the opening of the transverse groove provides space for the movement and reset of the extrusion block, the opening of the longitudinal groove provides space for the installation of the snap-fit ​​plate, the opening of the reset groove provides space for the reset of the snap-fit ​​plate, and the opening of the limiting groove provides guidance for the movement of the extrusion block and prevents deviation.

[0012] Preferably, a limiting base is fixedly provided at the position where the side surface of the fixed plate is aligned with the multiple longitudinal grooves, and a limiting top seat is provided at the top of the limiting base and fixed to the outer surface of the loosening plate. Guide rods are provided through the upper and lower ends of the limiting base and the limiting top seat, and an interactive groove is opened at the position of the limiting top seat facing the longitudinal groove.

[0013] By adopting the above technical solution, the limiting base is connected to the fixed plate, and the guide rod is connected through the middle of the limiting base upwards, thereby providing a fixed fulcrum for the limiting top seat to move up and down along the surface of the guide rod, and the opening of the interactive groove provides a moving path for the snap-fit ​​plate to insert into the guide rod to form a fixed position.

[0014] Preferably, each of the plurality of snap-fit ​​plates is fixedly provided with a first reset spring at the position of the reset groove, and each of the pressing blocks is fixedly provided with a second reset spring at the through-hole of the transverse groove and the longitudinal groove.

[0015] By adopting the above technical solution, the first reset spring is located in the reset groove and applies elastic force to the snap-fit ​​plate, thereby providing power for the snap-fit ​​plate to return to its original position. The second reset spring is located in the transverse groove, thereby providing power for the extrusion block to return to its original position.

[0016] Preferably, the surface of the extrusion block away from the transverse groove is provided with a first extrusion slope that abuts against the limiting slope block. The extrusion block faces into the transverse groove and is provided with a second extrusion slope extending from the middle of the second reset spring. The end of the second extrusion slope extends into the longitudinal groove and is provided with a guide strip that movably intersects with the limiting groove.

[0017] By adopting the above technical solution, the movement of the release plate causes the first extrusion inclined surface to abut against the limiting inclined block, thereby pressing the extrusion block into the transverse groove, which in turn causes the second extrusion inclined surface to abut against the snap-fit ​​plate, and the snap-fit ​​plate to be pressed into the interactive groove to fix the guide rod. During the movement of the extrusion block, the guide strip is inserted into the limiting groove, thereby limiting the transverse movement of the extrusion block and preventing deviation.

[0018] Preferably, a counter is fixedly mounted on one side surface of the loosening plate, and the top of the interactive end of the counter is fixedly connected to the side surface of the stabilizing plate.

[0019] By adopting the above technical solution, the counter connects the loosening plate and the stabilizing plate, thereby recording the number of reciprocating movements of the loosening plate.

[0020] Preferably, a manual latch is rotatably provided on the outer surface of the stabilizing plate on one side of the counter, and the bottom of the manual latch is connected to the release plate.

[0021] By adopting the above technical solution, rotating the manual lock temporarily fixes the loosening plate and the stabilizing plate, which facilitates the maintenance of the device during power outages.

[0022] Preferably, a stabilizing side column is fixedly provided at one end of the side surface of the main body base, the top of the stabilizing side column is fixedly connected to the stabilizing plate, and a cylinder push rod for lifting the movable plate upward is provided in the middle of the main body base.

[0023] By adopting the above technical solution, the stabilizing side column connects the stabilizing plate and the main base to form an integral fixation, which completely covers the loosening plate. At the same time, the cylinder push rod pushes the ejector pin upward to move, and drives the movable plate to move synchronously, providing power for the secondary demolding process.

[0024] In summary, the present invention has at least one of the following beneficial technical effects: 1. The ejector pin drives the ejector auxiliary pin to move up and down within the device. The overall movement of the release plate first demolds the fixed demolding material. During the initial demolding process, the extrusion block and the limiting inclined block transmit the thrust, thereby pushing the locking block and the guide rod to lock and fix it, thus maintaining the relative position of the limiting base and the limiting top seat. This, in turn, fixes the release plate and the fixed plate as a whole, preventing the release plate from moving excessively during the demolding process due to the excessive longitudinal depth of the device. 2. By utilizing the mechanical friction interaction between the extrusion block and the limiting inclined block, and between the second extrusion inclined surface and the snap-fit ​​plate, when the release plate loses its thrust, the reverse friction between multiple inclined surfaces, combined with the rebound of the first and second return springs located inside the release plate, causes the release plate to slowly descend to its original position. While automatically restoring its position, it provides safety resistance to prevent collision damage caused by the release plate descending too quickly. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is an overall exploded view of the present invention; Figure 3 This is a cross-sectional view of the internal structure of the present invention; Figure 4 This is a schematic diagram showing the connection between the release plate and the limiting base of the present invention; Figure 5 This is a schematic cross-sectional view of the top of the release plate of the present invention; Figure 6 This is a schematic diagram showing the connection between the limiting base and the limiting top seat of the present invention; Figure 7 This is a schematic diagram of the moving limiting mechanism of the present invention located inside the release plate.

[0026] Reference numerals: 1. Main body base; 2. Divider plate; 21. Main ejector pin; 22. Secondary ejector pin; 23. Reset rod; 24. Connecting support; 25. Limiting inclined block; 26. Movable plate; 3. Fixing plate; 31. Lower pressure plate; 32. Limiting post; 33. Connecting rod; 4. Loosening plate; 41. Transverse groove; 42. Longitudinal groove; 43. Reset groove; 44. Limiting groove; 5. Stabilizing plate; 6. Moving limit mechanism; 61. Limiting base; 62. Limiting top seat; 63. Guide rod; 64. Interactive groove; 65. Snap-fit ​​plate; 66. First return spring; 67. Extrusion block; 68. First extrusion slope; 69. Second extrusion slope; 610. Second return spring; 611. Guide strip; 7. Top cover; 8. Discharge port; 9. Stabilizing side pillars; 10. Manual locking buckle; 11. Counter; 12. Cylinder push rod; 13. Demolding material. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-7 The present invention will be described in further detail below.

[0028] This invention discloses a secondary ejection mold.

[0029] Reference Figure 1 , Figure 2 , Figure 3 A secondary ejection mold includes a main base 1. A partition plate 2 is fixed to the main base 1 by screws. The partition plate 2 is generally H-shaped, and both sides of the H-shape are fixed to the surface of the main base 1. A cylinder push rod 12 is fixed to the surface of the main base 1 at the middle of the H-shape of the partition plate 2. The output end of the cylinder push rod 12 passes through the partition plate 2 upward. A movable plate 26 is provided on the upper surface of the partition plate 2 at the middle of the H-shape. The surface of the movable plate 26 is connected to the partition plate 2 through multiple longitudinal rods, so that the movable plate 26 can only move up and down along the surface of the partition plate 2. An ejection pin 21 is provided on the upper surface of the partition plate 2. The bottom of the ejection pin 21 is fixed to the output end of the cylinder push rod 12. A convex plate is laterally expanded at the position of the ejection pin 21 at the bottom surface of the movable plate 26, so that when the ejection pin 21 moves upward, it drives the movable plate 26 to move synchronously. The cylinder push rod 12 can also be selected as a hydraulic push rod; Multiple ejector pins 22 are fixedly mounted around the ejector main pin 21 on the upper surface of the partition plate 2. The ejector pins 22 are movably connected to the movable plate 26 (the shape of the ejector pins 22 is the same as that of the ejector main pin 21, and they are fixed synchronously with the movable plate 26). A fixed plate 3 is provided on the top of the partition plate 2. The fixed plate 3 is movably connected to the ejector main pin 21 and the ejector pins 22. At the same time, connecting pillars 24 are fixedly mounted on both sides of the partition plate 2. Connecting rods 33 are threadedly fixed on both sides of the fixed plate 3 at the position of the connecting pillars 24. The connecting rods 33 on both sides are threadedly fixed to the connecting pillars 24 on both sides. Multiple reset rods 23 are fixedly mounted around the outer ring of the multiple ejector pins 22 on the surface of the partition plate 2. A spring is fixedly mounted on the surface of each reset rod 23. The surfaces of the multiple reset rods 23 are movably connected to the fixed plate 3. The springs on the surfaces of the multiple reset rods 23 are fixedly connected to the bottom surface of the fixed plate 3, so that when the rebound force is provided, the movable plate 26 moves downward to return to its original position. A groove is made downward in the middle of the fixed plate 3. The main ejector pin 21 and the auxiliary ejector pin 22 are respectively protruding through the bottom of the groove of the fixed plate 3. The demolding material 13 is placed at the protruding end. A lower pressure plate 31 is fixed in the groove with screws. The surface of the lower pressure plate 31 has through holes at the position of the demolding material 13 for the material to be ejected. The through holes of the lower pressure plate 31 are all T-shaped, thereby fixing the mold of the demolding material 13, and the material is discharged to the outside through the through holes.

[0030] Reference Figure 1 , Figure 2 , Figure 3 The surface of the fixed plate 3 has limit posts 32 protruding upward at the penetration points of multiple reset rods 23, and the rods of multiple reset rods 23 are all located in the middle of the limit posts 32, thereby improving the overall stability of the partition plate 2 and the fixed plate 3. The top of the fixed plate 3 is movably provided with a release plate 4, and the top of the demolding material 13 passes through the top of the lower pressure plate 31 to the surface of the release plate 4. The release plate 4 is in contact with the mold surface of the demolding material 13, but it is not in contact with the material of the demolding material 13. When the release plate 4 moves up and down, it prevents the mold of the demolding material 13 from passing through the release plate 4, so that the material of the demolding material 13 is discharged upward, thus forming a limit. A stabilizing plate 5 is provided on the upper end face of the release plate 4. A stabilizing side post 9 is fixed to one side of the stabilizing plate 5 with screws. The stabilizing side post 9 is concave in shape, and the bottom of the stabilizing side post 9 is fixed to the side surface of the partition plate 2 to form an integral connection between the partition plate 2 and the stabilizing plate 5. This roughly limits the longitudinal movement distance of the release plate 4. At the same time, an opening covering the range of the ejector main pin 21 and ejector secondary pin 22 is opened in the middle of the stabilizing plate 5. A top cover 7 is fixed to the top of the stabilizing plate 5 with screws to seal the stabilizing plate 5. A discharge port 8 with the same diameter as the opening of the stabilizing plate 5 is opened in the middle of the top cover 7 for discharging the material after demolding. At the same time, the tops of multiple limiting posts 32 can move through the loosening plate 4 and are fixed to the bottom surface of the stabilizing plate 5 with screws, so that the loosening plate 4 can only move up and down along the surface of the limiting posts 32, thereby limiting the overall movement of the loosening plate 4.

[0031] It should be noted that a counter 11 is fixed on one side of the front end of the release plate 4 and the stabilizing plate 5. The counter 11 is a mechanical counter 11, which does not require electricity and can still be used when the power is off. The interaction end of the counter 11 is fixed on the side surface of the stabilizing plate 5, and the counting end of the counter 11 is fixed on the side surface of the release plate 4. When the release plate 4 moves back and forth, the counter 11 counts the number of reciprocations. A manual lock 10 is rotatably set on the side of the front end of the stabilizing plate 5, located on the side of the counter 11. The locking end of the manual lock 10 is fixed on the side surface of the release plate 4, so that the release plate 4 can be manually fixed when the whole device is under maintenance and in a power-off state, which is convenient for personnel to inspect and maintain.

[0032] Reference Figure 3 , Figure 4 , Figure 5 The release plate 4 has transverse grooves 41 at both ends of its side surface, and longitudinal grooves 42 at the ends of the transverse grooves 41 within the release plate 4. The moving limiting mechanism 6 includes a pressing block 67 that is movable within the two transverse grooves 41. The pressing block 67 is made of stainless steel with a hardness of 85HRC. The end of the pressing block 67 facing the opening of the transverse groove 41 has a first pressing slope 68. At the same time, the tops of the two connecting pillars 24 are fixed with limiting slopes 25 at the position of the transverse groove 41. The limiting slopes 25 and the first pressing slopes 68 have slopes with the same angle. Thus, when the release plate 4 moves upward, the limiting slopes 25 are pressed against the first pressing slopes 68, pushing the pressing block 67 to move along the transverse groove 41. The two transverse grooves 41 are connected to the longitudinal groove 42, and both of them have a constriction opening that narrows inward from both sides. One end of the extrusion block 67 extends into the longitudinal groove 42 from the constriction opening of the transverse groove 41. A second extrusion slope 69 is provided on the surface of the part of the extrusion block 67 that is covered by the constriction opening. When the extrusion block 67 moves into the transverse groove 41, it drives the second extrusion slope 69 to be pressed into the range of the longitudinal groove 42. At the same time, a second return spring 610 is provided around the side surface of the extended end of the extrusion block 67 located in the transverse groove 41. When the extrusion block 67 loses the pressure from the limiting inclined block 25, it provides a rebound force, so that the extrusion block 67 as a whole returns to the state where the front end protrudes from the transverse groove 41. A limiting groove 44 is opened on the other side of the through opening of the transverse groove 41 in the longitudinal groove 42. The width of the limiting groove 44 is smaller than the through opening of the transverse groove 41, and a guide strip 611 is provided in the limiting groove 44 when the extrusion block 67 moves along the transverse groove 41, so that the extrusion block 67 is squeezed and limited by the limiting groove 44, preventing the movement and deviation.

[0033] Reference Figure 5 , Figure 6 , Figure 7A snap-fit ​​plate 65 is movable at both ends of the inner wall of the longitudinal groove 42. Both ends of the snap-fit ​​plate 65 contract towards the center to form a trapezoidal inclined surface. The two snap-fit ​​plates 65 abut against the second extrusion inclined surface 69 on opposite sides through the trapezoidal inclined surface, thereby receiving the lateral thrust transmitted by the extrusion block 67 and converting it into a longitudinal thrust on the snap-fit ​​plate 65. The outer surface of the fixed plate 3 is fixed with a limiting base 61 at both ends of the counter 11. The outer surface of the loosening plate 4 is fixed with a limiting top seat 62 at both ends of the counter 11. A guide rod 63 is provided through the middle of the limiting base 61 and the limiting top seat 62. The guide rod 63 is I-shaped, and the two ends of the guide rod 63 are aligned. The limiting base 61 and the limiting top seat 62 form a covering and limiting. Meanwhile, an interactive groove 64 is laterally opened on one end of the side surface of the limiting top seat 62, which is connected to the through-hole of the guide rod 63. The interactive groove 64 is in communication with the through-hole of the longitudinal groove 42. A trapezoidal side groove is opened on the side of the guide rod 63 facing the interactive groove 64. When the snap-fit ​​plate 65 is pushed outward by the extrusion block 67, it is inserted into the side groove of the guide rod 63 by the interactive groove 64, thereby snapping and fixing the movement of the limiting top seat 62. This fixes the loosening plate 4, which is fixed to the limiting top seat 62, to prevent excessive movement and connects to the continuous ejection of the ejector pin 22, thus completing the secondary ejection process. Reset grooves 43 are provided on both sides of the snap-fit ​​plate 65 on the inner wall of the longitudinal groove 42. The snap-fit ​​plate 65 extends along the reset grooves 43 on both sides, and a first reset spring 66 is fixed on the surface of the extended side. The other end of the first reset spring 66 is fixed to the inner wall of the reset groove 43, so as to provide a rebound force when the snap-fit ​​plate 65 loses its thrust, and assist the snap-fit ​​plate 65 to return to its original position. At the same time, through the overall friction relationship between the extrusion block 67 and the limiting inclined block 25, the second extrusion inclined surface 69 and the snap-fit ​​plate 65, the resistance encountered by the release plate 4 when it descends is increased, and the risk of impact damage caused by rapid descent is prevented. It should be noted that the first return spring 66 is made of stainless steel with a hardness of 80 N / mm and a compression ratio of 5 mm. It has high corrosion resistance and elasticity, ensuring that the spring can provide sufficient rebound force when the release plate 4 moves upward. The second return spring 610 is made of carbon steel with a hardness of 60 N / mm and a compression ratio of 4 mm. It has good elasticity and wear resistance and is suitable for large loads, providing rebound force for the extrusion block 67 to return to its original position.

[0034] The implementation principle of a secondary ejection mold in this embodiment of the invention is as follows: When using this device, the cylinder push rod 12 first applies a pushing force upward to the ejection main pin 21, thereby the ejection main pin 21 drives the movable plate 26 and the ejection auxiliary pin 22 to move upward synchronously. Then, as the ejection auxiliary pin 22 applies a pushing force upward to the demolding material 13, the mold in the demolding material 13 and the lower pressure plate 31 are snapped together and fixed in the fixed plate 3, thereby applying a pushing force to the material in the demolding material 13 and initially separating it from the mold; During the initial separation of the demolded material 13, the pushing force applied by the material drives the release plate 4 to move upward synchronously. The inner wall of the through hole of the release plate 4 is interlocked with the mold surface of the demolded material 13, thereby forming an auxiliary fixation for the mold of the demolded material 13 and preventing the mold from shifting during demolding, which would cause the material to deform. As the release plate 4 moves upward, the first extrusion inclined surface 68 on both sides and the limiting inclined block 25 are squeezed together, generating an interaction force that pushes the extrusion blocks 67 on both sides from the outside to the inside, causing the extrusion blocks 67 to move inward along the transverse groove 41. During the movement of the extrusion blocks 67, the second extrusion inclined surface 69 is squeezed together with the inclined surface of the two clamping plates 65, thereby pushing the clamping plates 65 to move along the longitudinal groove 42 to the front and rear ends of the release plate 4. Meanwhile, as the release plate 4 moves upward, it drives the limiting top seat 62 to move along the surface of the guide rod 63, thereby causing the snap-fit ​​plates 65 on both sides to protrude outward from the longitudinal groove 42 and first contact the inclined surface of the side groove of the guide rod 63. When the extrusion block 67 is fully inserted into the transverse groove 41, the interactive groove 64 and the longitudinal groove 42 are in a centered alignment state, and the snap-fit ​​plates 65 are fully inserted into the side groove of the guide rod 63 to form a snap-fit, thereby fixing the limiting top seat 62 and the limiting base 61, thus stopping the upward movement of the release plate 4. As the release plate 4 stops moving and the multiple ejector pins 22 continue to eject upward, a secondary ejection is formed on the initially released demolding material 13, completely separating the material from the mold and discharging it to the outside through the discharge port 8.

[0035] The above are merely optional embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A secondary ejection mold, characterized in that: Includes a main base (1), a partition plate (2) is provided on the top of the main base (1), an ejector pin (21) for secondary demolding is provided in the middle of the partition plate (2), a demolding material (13) is sleeved on the surface of the ejector pin (21), a plurality of ejector pins (22) are provided around the ejector pin (21) in the middle of the partition plate (2), a fixing plate (3) is provided on the top of the partition plate (2) and moves through the ejector pin (21) and the ejector pins (22), a release plate (4) is provided on the top of the fixing plate (3), and a moving limiting mechanism (6) for limiting the movement of the release plate (4) is provided on one side of the fixing plate (3) and the release plate (4); The moving limiting mechanism (6) includes pressing blocks (67) arranged on both sides of the inside of the loosening plate (4). The pressing blocks (67) on both sides are opposite to each other and are located inside the loosening plate (4) and are abutting against each other with a snap-fit ​​plate (65). The snap-fit ​​plate (65) extends to fix the loosening plate (4) to the fixing plate (3). The top of the release plate (4) is provided with a stabilizing plate (5) which is fixed to the main base (1) for fixing the whole device. The top of the stabilizing plate (5) is provided with a top cover (7). The top cover (7) has an outlet (8) in the middle for discharging the demolding material (13). The partition plate (2) has connecting pillars (24) fixed on both sides. The tops of the two connecting pillars (24) are fixed to the fixed plate (3). The tops of the two connecting pillars (24) are surrounded by limit blocks (25). The top of the partition plate (2) has a movable plate (26) that movably passes through the main ejector pin (21) and the auxiliary ejector pin (22). The top surface of the movable plate (26) is surrounded by a reset rod (23) for multiple auxiliary ejector pins (22). The fixed plate (3) is provided with connecting rods (33) on both sides, which are fixed to the two connecting pillars (24). The upper middle part of the fixed plate (3) is fixed with a lower pressure plate (31) for fixing the demolding material (13). The top of the fixed plate (3) is surrounded by the lower pressure plate (31) and has multiple limiting posts (32) that move through the release plate (4). The tops of the multiple reset rods (23) all pass through the fixed plate (3) and move through the limiting posts (32). The loosening plate (4) has transverse grooves (41) on both sides. The loosening plate (4) has longitudinal grooves (42) at the ends of the two transverse grooves (41). The two longitudinal grooves (42) have reset grooves (43) at both ends. The two longitudinal grooves (42) are on opposite sides and have limit grooves (44) at the position where they are aligned with the transverse grooves (41). The snap-fit ​​plate (65) is movable in the longitudinal groove (42). The squeezing block (67) is movable in the transverse groove (41).

2. The secondary ejection mold according to claim 1, characterized in that: The fixed plate (3) is fixedly provided with a limiting base (61) at the position where it is aligned with the multiple longitudinal grooves (42). The top of the limiting base (61) is provided with a limiting top seat (62) which is fixed to the outer surface of the loose plate (4). The upper and lower ends of the limiting base (61) and the limiting top seat (62) are provided with guide rods (63). The limiting top seat (62) facing the longitudinal groove (42) has an interactive groove (64).

3. The secondary ejection mold according to claim 2, characterized in that: Each of the multiple snap-fit ​​plates (65) is fixed with a first reset spring (66) at the position of the reset groove (43), and each of the pressing blocks (67) is fixed with a second reset spring (610) at the through opening of the transverse groove (41) and the longitudinal groove (42).

4. A secondary ejection mold according to claim 3, characterized in that: The extrusion block (67) has a first extrusion slope (68) on the side surface away from the transverse groove (41) that presses against the limiting slope block (25). The extrusion block (67) faces the transverse groove (41) and has a second extrusion slope (69) extending from the middle of the second reset spring (610). The end of the second extrusion slope (69) extends toward the longitudinal groove (42) and has a guide strip (611) that movably intersects with the limiting groove (44).

5. A secondary ejection mold according to claim 4, characterized in that: A counter (11) is fixedly mounted on one side surface of the loosening plate (4), and the top of the interactive end of the counter (11) is fixedly connected to the side surface of the stabilizing plate (5).

6. A secondary ejection mold according to claim 5, characterized in that: The outer surface of the stabilizing plate (5) is rotatably provided with a manual latch (10) on one side of the counter (11), and the bottom of the manual latch (10) is connected to the release plate (4).

7. A secondary ejection mold according to claim 6, characterized in that: A stabilizing side column (9) is fixedly provided at one end of the side surface of the main body base (1). The top of the stabilizing side column (9) is fixedly connected to the stabilizing plate (5). A cylinder push rod (12) for lifting the movable plate (26) upward is provided in the middle of the main body base (1).

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