Plastic injection molding mold base with rapid temperature reduction demolding function

Abstract

The invention discloses a plastic injection molding mold base with a rapid temperature reduction demolding function, and relates to the technical field of injection molds, the plastic injection molding mold base comprises an upper mold base, a lower mold base, a water tank and a refrigeration sheet, a second water guide groove is formed in the upper mold base, a first water guide groove is formed in the lower mold base, and round holes are formed in the four corners of the top face of the lower mold base; hollow rods are arranged at four corners of the bottom surface of the upper mold base; a first gear is fixedly connected to the outer wall of a first short shaft on the inner bottom face of the water tank, and a water supply mechanism is arranged at the bottom. Supporting plates are symmetrically arranged on the inner bottom face of the water tank, a vibrating mechanism is arranged between the supporting plates, and a third gear is fixedly connected to a second short shaft on the side face of each supporting plate. An electric push rod is mounted on the inner top surface of the water tank; a driving mechanism is arranged at the movable end of the electric push rod; according to the plastic product cooling device, through mutual cooperative use of the driving mechanism, the third gear and the first gear, cold water flows in the first water guide groove and the second water guide groove to rapidly cool a plastic product, so that the forming speed of the plastic product is increased, and the production efficiency of the plastic product is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, and in particular to a mold base for plastic injection molding with a temperature rapid drop demoulding function. Background Art

[0002] Plastic injection mold base is also called plastic injection mold. It is a production tool that can repeatedly produce plastic parts or products in large quantities. This mold relies on one or more cavities formed after the molding parts are assembled to form the shape of the plastic parts we need. However, when the existing plastic injection mold base is used, the plastic product needs to be naturally cooled after being injection molded in the plastic injection mold base, and natural cooling takes a lot of time, which leads to a longer molding time of the plastic product, thereby affecting the molding efficiency of the plastic product and further affecting the production of the plastic product. Summary of the invention

[0003] The present invention aims to solve the problems in the background technology and proposes a plastic injection molding mold base with a temperature rapid drop demoulding function.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A mold base for plastic injection molding with a temperature rapid drop demoulding function, comprising an upper mold base, a lower mold base, a water tank and a cooling plate, wherein the lower mold base is installed on the top of the water tank, a water guide groove 2 is provided inside the upper mold base, a water guide groove 1 is provided inside the lower mold base, circular holes are provided at the four corners of the top surface of the lower mold base, and hollow rods matching the circular holes are provided at the four corners of the bottom surface of the upper mold base, one of the circular holes is connected to the water outlet end of the water guide groove 1, and the hollow rod in the circular hole is connected to the water inlet end of the water guide groove 2, one of the hollow rods is connected to the water outlet end of the water guide groove 2, and the circular hole where the hollow rod is located is connected to the water tank through a connecting groove; A short shaft 1 is rotatably provided on the inner bottom surface of the water tank, a gear 1 is fixedly connected to the outer wall of the short shaft 1, and a water delivery mechanism acting on a water guide groove 1 is provided at the bottom; Symmetrical support plates are provided on the inner bottom surface of the water tank, and a vibration mechanism acting on the upper mold base and the lower mold base is provided between the support plates, and a short shaft 2 is rotatably provided on the side surface of one of the support plates, and a gear 3 is rotatably provided on the short shaft 2 through an adjusting member; An electric push rod is installed on the top surface of the water tank, and a driving mechanism that first acts on gear three and then acts on gear one is arranged at the movable end of the electric push rod.

[0005] Preferably, the driving mechanism includes a bar block arranged at the movable end of the electric push rod, a bar groove opened on the bar block, a movable block slidably arranged in the bar groove, and an extrusion spring, and the extrusion spring is located at one end of the electric push rod, and the movable block is fixedly connected to a bar tooth plate 2 meshing with gear 3, and the bar block is fixedly connected to a bar tooth plate 1 matching with gear 1.

[0006] Preferably, the water delivery mechanism includes a mounting plate fixedly connected to the inner wall of the water tank, a sealing box fixedly connected to the mounting plate and a piston slidably arranged in the sealing box, a circular plate is fixedly connected to the bottom of the short shaft, a short cylinder is fixedly connected to the edge of the circular plate, an annular ring is slidably provided on the short cylinder, a connecting rod 2 is fixedly connected to the annular ring, and the connecting rod 2 is fixedly connected to the piston, a water outlet pipe connected to a water inlet end of a water guide groove is provided on the sealing box, a one-way water outlet valve is provided on the water outlet pipe, a water inlet pipe is provided on the sealing box, and the bottom of the water inlet pipe extends to the bottom of the water tank, and a one-way water inlet valve is provided on the water inlet pipe.

[0007] Preferably, the connecting rod 1 is fixedly connected to the connecting rod 2, a stirring plate is fixedly connected to the bottom of the connecting rod 1, and the stirring plate is slidably arranged on the bottom surface of the water tank, and a plurality of strip openings are evenly opened on the stirring plate.

[0008] Preferably, the vibration mechanism includes a torsion spring shaft 1 rotatably arranged between the support plates and a plurality of striking blocks evenly fixed to the torsion spring shaft 1, one end of the torsion spring shaft 1 is fixed to a gear 2, and an incomplete gear matching with the gear 2 is fixed to the short shaft 2.

[0009] Preferably, a circular cavity is provided in the gear three, a ratchet is fixedly connected to the outer wall of the short shaft two in the circular cavity, and a ratchet pawl cooperating with the ratchet is provided on the inner wall of the circular cavity through the rotation of the torsion spring shaft two.

[0010] Preferably, the water guide groove 1 and the water guide groove 2 are both composed of a plurality of U-shaped grooves, and each U-shaped groove is connected end to end.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: The present invention uses the driving mechanism, gear three and gear one to cooperate with each other, first knock the lower mold base and the upper mold base to discharge the bubbles in the plastic liquid in the lower mold base and the upper mold base, so as to avoid bubbles in the produced plastic products; then, cold water is made to flow in the water guide groove one and the water guide groove two to realize rapid cooling of the plastic product, thereby increasing the molding speed of the plastic product and further improving the production efficiency of the plastic product; finally, the lower mold base and the upper mold base are knocked to make the lower mold base and the upper mold base vibrate, thereby reducing the adhesion between the plastic product and the lower mold base and the upper mold base, thereby facilitating the demoulding of the plastic product and further facilitating the unloading of the plastic product; The present invention drives the stirring plate to move back and forth at the bottom of the water tank through the reciprocating movement of the connecting rod 1, thereby stirring the water in the water tank, so that the hot water just entering the water tank can be quickly cooled, thereby preventing hot water from entering the water guide groove 1 and the water guide groove 2, which is beneficial to the cooling of plastic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It shows a schematic structural diagram of a front viewing angle provided by an embodiment of the present invention; Figure 2 A schematic diagram of a cross-sectional structure at a front viewing angle provided by an embodiment of the present invention is shown; Figure 3 A schematic structural diagram of a driving mechanism according to a first viewing angle is shown; Figure 4 A schematic structural diagram of a driving mechanism according to a second viewing angle is shown; Figure 5 A schematic structural diagram of a driving mechanism according to a third viewing angle provided by an embodiment of the present invention is shown; Figure 6 for Figure 5 A partial enlarged view of the middle A; Figure 7 A schematic cross-sectional structure diagram of a sealing box provided according to an embodiment of the present invention is shown; Figure 8 It shows a schematic structural diagram of a hollow rod installation provided in an embodiment of the present invention; Fig. 9 It shows a schematic structural diagram of a water guide channel 1 provided according to an embodiment of the present invention; Fig.10 It shows a schematic structural diagram of a water guide channel 2 provided according to an embodiment of the present invention; Fig.11 A schematic structural diagram of an adjusting member provided according to an embodiment of the present invention is shown.

[0013] Legend: 1. Upper mold base; 2. Lower mold base; 3. Water tank; 4. One-way water inlet valve; 5. Water inlet pipe; 6. Mounting plate; 7. Stirring plate; 8. Refrigeration plate; 9. Short shaft one; 10. Bar block; 11. Bar tooth plate one; 12. Bar mouth; 13. Gear one; 14. Round plate; 15. Connecting rod one; 16. Gear two; 17. Support plate; 18. Knocking block; 19. Torsion spring shaft one; 20. One-way water outlet valve; 21. Water outlet pipe; 22. Sealing box; 23. Connecting rod 2; 24. Strip groove; 25. Extrusion spring; 26. Gear 3; 27. Short shaft 2; 28. Annular ring; 29. ​​Short cylinder; 30. Strip tooth plate 2; 31. Electric push rod; 32. Incomplete gear; 33. Piston; 34. Hollow rod; 35. Round hole; 36. Connecting groove; 37. Water guide groove 1; 38. Water guide groove 2; 39. Movable block; 40. Ratchet; 41. Round cavity; 42. Ratchet. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-11 , the present invention provides a technical solution: A mold base for plastic injection molding with a temperature rapid demoulding function, comprising an upper mold base 1, a lower mold base 2, a water tank 3 and a cooling plate 8 (the model of the cooling plate 8 is TEC1-12724T125, which is used to cool the plastic product in the water tank 3 and improve the speed of plastic product molding), and the cooling plate 8 is installed on the bottom surface of the water tank 3; the upper mold base 1 and the lower mold base 2 are installed on the injection molding machine; and the lower mold base 2 is installed on the top of the water tank 3, the upper mold base 1 is provided with a second water guide groove 38, the lower mold base 2 is provided with a first water guide groove 37, the top surface of the lower mold base 2 is provided with round holes 35 at the four corners, and the bottom surface of the upper mold base 1 is provided with hollow rods 34 matched with the round holes 35, one of the round holes 35 is connected to the water outlet end of the first water guide groove 37, and the water outlet end of the first water guide groove 37 is connected to the water outlet end of the first water guide groove 37. The hollow rod 34 in the circular hole 35 is connected with the water inlet end of the water guide groove 2 38, one of the hollow rods 34 is connected with the water outlet end of the water guide groove 2 38, and the circular hole 35 where the hollow rod 34 is located is connected with the water tank 3 through the connecting groove 36; wherein, the water guide groove 1 37 and the water guide groove 2 38 are both composed of a plurality of U-shaped grooves, and each U-shaped groove is connected end to end, which is convenient for increasing the contact area between the cold water and the upper mold base 1 and the lower mold base 2, thereby improving the rapid cooling of the lower mold base 2 and the upper mold base 1, and improving the speed of plastic product molding; wherein, through the mutual coordination of the water guide groove 1 37 and the water guide groove 2 38, the rapid cooling of the plastic product is facilitated, thereby improving the efficiency of plastic product molding and improving the production efficiency of plastic products.

[0016] A short shaft 9 is rotatably provided on the inner bottom surface of the water tank 3, a gear 13 is fixedly connected to the outer wall of the short shaft 9, and a water supply mechanism acting on the water guide groove 1 37 is provided at the bottom. Through the use of the water supply mechanism, it is convenient to inject cold water into the water guide groove 1 37 and the water guide groove 2 38, so that the cold water in the water guide groove 1 37 and the water guide groove 2 38 can flow, thereby realizing rapid cooling of the plastic product, thereby improving the production efficiency of the plastic product.

[0017] Symmetrical support plates 17 are provided on the inner bottom surface of the water tank 3, and a vibration mechanism acting on the upper mold base 1 and the lower mold base 2 is provided between the support plates 17. By using the vibration mechanism, it is convenient to vibrate the lower mold base 2 and the upper mold base 1, thereby reducing the adhesion between the plastic product and the lower mold base 2 and the upper mold base 1, thereby facilitating the demoulding of the plastic product, and further facilitating the unloading of the plastic product; at the same time, it is also convenient to remove the bubbles in the plastic liquid in the lower mold base 2 and the upper mold base 1, avoiding the presence of bubbles in the molded plastic product, thereby improving the quality of the plastic product; a short shaft 27 is rotatably provided on the side of one of the support plates 17, and a gear 3 26 is rotatably provided on the short shaft 27 through an adjusting member; by using the adjusting member, it is convenient to rotate the short shaft 27 in a certain order, so that the knocking block 18 rotates in a certain direction, avoiding the phenomenon of the knocking block 18 being stuck.

[0018] An electric push rod 31 is installed on the top surface of the water tank 3, and the movable end of the electric push rod 31 is provided with a driving mechanism that first acts on the gear three 26 and then acts on the gear one 13; through the mutual cooperation of the driving mechanism, the gear three 26 and the gear one 13, the lower mold base 2 and the upper mold base 1 are first knocked to discharge the bubbles in the plastic liquid in the lower mold base 2 and the upper mold base 1, so as to avoid the plastic products produced containing bubbles; then, cold water is made to flow in the water guide groove one 37 and the water guide groove two 38 to achieve rapid cooling of the plastic product, thereby increasing the molding speed of the plastic product and further improving the production efficiency of the plastic product; finally, the lower mold base 2 and the upper mold base 1 are knocked to make the lower mold base 2 and the upper mold base 1 vibrate, thereby reducing the adhesion between the plastic product and the lower mold base 2 and the upper mold base 1, thereby facilitating the demoulding of the plastic product and further facilitating the unloading of the plastic product.

[0019] In the present invention, the driving mechanism includes a bar block 10 arranged at the movable end of the electric push rod 31, a bar groove 24 opened on the bar block 10, a movable block 39 slidably arranged in the bar groove 24, and an extrusion spring 25, and the extrusion spring 25 is located at one end of the electric push rod 31. Through the use of the extrusion spring 25, it is convenient to squeeze the movable block 39 so that the bar tooth plate 2 30 moves synchronously with the movable block 39; the movable block 39 is fixedly connected with a bar tooth plate 2 30 meshing with the gear 3 26, and the bar block 10 is fixedly connected with a bar tooth plate 11 matching with the gear 1 13.

[0020] In the present invention, the water delivery mechanism includes a mounting plate 6 fixedly connected to the inner wall of the water tank 3, a sealing box 22 fixedly connected to the mounting plate 6 and a piston 33 slidably arranged in the sealing box 22, a circular plate 14 is fixedly connected to the bottom of the short shaft 9, a short cylinder 29 is fixedly connected to the edge of the circular plate 14, an annular ring 28 is slidably provided on the short cylinder 29, a connecting rod 23 is fixedly connected to the annular ring 28, and the connecting rod 23 is fixedly connected to the piston 33, a water outlet pipe 21 connected to the water inlet end of the water guide groove 37 is provided on the sealing box 22, a one-way water outlet valve 20 is provided on the water outlet pipe 21, a water inlet pipe 5 is provided on the sealing box 22, and the bottom of the water inlet pipe 5 extends to the bottom of the water tank 3, and a one-way water inlet valve 4 is provided on the water inlet pipe 5.

[0021] In the present invention, a connecting rod 15 is fixedly connected to the connecting rod 23, a stirring plate 7 is fixedly connected to the bottom of the connecting rod 15, and the stirring plate 7 is slidably arranged on the bottom surface of the water tank 3, and a plurality of strip openings 12 are evenly opened on the stirring plate 7; the reciprocating movement of the connecting rod 15 drives the stirring plate 7 to reciprocate at the bottom of the water tank 3, so that the water in the water tank 3 is stirred, so that the hot water just entering the water tank 3 can be quickly cooled, thereby preventing hot water from entering the water guide groove 1 37 and the water guide groove 2 38, which is beneficial to the cooling of the plastic product.

[0022] In the present invention, the vibration mechanism includes a torsion spring shaft 19 rotatably arranged between the support plates 17 and a plurality of knocking blocks 18 uniformly fixed to the torsion spring shaft 19, wherein the torsion spring shaft 19 is composed of a shaft and a torsion spring, giving the knocking blocks 18 a force to contact the top surface inside the water tank 3, thereby facilitating the vibration of the upper mold base 1 and the lower mold base 2; a gear 2 16 is fixedly connected to one end of the torsion spring shaft 19, and an incomplete gear 32 matching the gear 2 16 is fixedly connected to the short shaft 27.

[0023] In the present invention, a circular cavity 41 is opened in the gear three 26, a ratchet 40 is fixedly connected to the outer wall of the short shaft two 27 in the circular cavity 41, and a pawl 42 cooperating with the ratchet 40 is provided on the inner wall of the circular cavity 41 through the rotation of the torsion spring shaft two; wherein the torsion spring shaft two is composed of a shaft and a torsion spring, and gives the knocking block 18 a force to contact the top surface of the water tank 3; through the mutual cooperation of the ratchet 40 and the pawl 42, it is convenient to make the short shaft two 27 rotate in a certain order, so that the knocking block 18 rotates in a certain direction, avoiding the phenomenon of the knocking block 18 being stuck.

[0024] Working principle: In the present invention, the upper mold base 1 and the lower mold base 2 are molded together by an injection molding machine, and then the plastic liquid is injected between the upper mold base 1 and the lower mold base 2; when the plastic liquid fills the entire upper mold base 1 and the lower mold base 2; the electric push rod 31 is turned on, and the movable end of the electric push rod 31 is telescopically adjusted to move the bar block 10, and the movement of the bar block 10 is divided into three steps: Step 1: The bar block 10 moves from the initial position (denoted as point A) to the meshing position of the bar tooth plate 11 and the gear 13 (denoted as point B); then the bar block 10 is reciprocated between point A and point B; at this time, under the action of the extrusion spring 25, the movable block 39 moves synchronously with the bar block 10; When the bar block 10 moves from point A to point B, at this time, the ratchet 40 and the pawl 42 cooperate to make the gear three 26 idle, that is, the knocking block 18 does not rotate; and when the bar block 10 moves from point B to point A, at this time, the ratchet 40 and the pawl 42 cooperate to make the short shaft two 27 rotate, thereby driving the incomplete gear 32 to rotate, thereby driving the gear two 16 to rotate, and further driving the torsion spring shaft one 19 and the knocking block 18 to rotate, so that the knocking block 18 is separated from the top surface of the water tank 3; when the teeth on the incomplete gear 32 are separated from the gear two 16, the knocking block 18 is reset under the action of the torsion spring shaft one 19 to knock the water tank 3, so that the upper mold base 1 and the lower mold base 2 vibrate, which is convenient for removing bubbles in the plastic liquid in the upper mold base 1 and the lower mold base 2, avoiding bubbles in the produced plastic products, and improving the quality of the plastic products; Step 2: Then, the bar block 10 is moved from point B to the end (recorded as point C). In this process, as the bar block 10 continues to move, the bar tooth plate 11 is driven to move, while the bar tooth plate 2 30 is in a stationary state; at this time, the movement of the bar tooth plate 11 drives the gear 13 to rotate, and then drives the short shaft 1 9, the circular plate 14 and the short cylinder 29 to rotate, thereby driving the annular ring 28, the connecting rod 23 and the piston 33 to reciprocate; When the piston 33 moves away from the circular plate 14, the cold water in the sealed box 22 is output to the water guide groove 1 37 through the water outlet pipe 21, and then the cold water flows in the water guide groove 1 37, and finally enters the water guide groove 2 38 through one of the hollow rods 34, and then the cold water flows in the water guide groove 2 38 and flows out through the other hollow rod 34, and finally enters the water tank 3 through the connecting groove 36, so as to realize the circulation of cold water, thereby taking away the heat on the upper mold base 1 and the lower mold base 2, facilitating the rapid cooling of the plastic product, and improving the molding efficiency of the plastic product; and when the piston 33 moves toward the circular plate 14, the cold water in the water tank 3 is sucked into the sealed box 22 through the water inlet pipe 5; The second connecting rod 23 drives the first connecting rod 15 and the stirring plate 17 to move back and forth at the bottom of the water tank 3 when reciprocating, so as to stir the water in the water tank 3, so as to facilitate the rapid cooling of the hot water just entering the water tank 3, thereby preventing the hot water from entering the first water guide groove 37 and the second water guide groove 38, which is beneficial to the cooling of the plastic product; Step 3: After the plastic product has been cooled, the electric push rod 31 is controlled to move the bar block 10 back and forth between point A and point B, and step 1 is repeated to achieve vibration of the upper mold base 1 and the lower mold base 2, thereby reducing the adhesion between the plastic product and the upper mold base 1 and the lower mold base 2, and facilitating demoulding of the plastic product; Finally, when demoulding the plastic product, the upper mold base 1 is opened to take out the plastic product.

[0025] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mold base for plastic injection molding with a temperature rapid drop demoulding function, comprising an upper mold base (1), a lower mold base (2), a water tank (3) and a cooling plate (8), wherein the lower mold base (2) is installed on the top of the water tank (3), characterized in that: The upper mold base (1) is provided with a second water guide groove (38) inside, the lower mold base (2) is provided with a first water guide groove (37) inside, the top surface of the lower mold base (2) is provided with circular holes (35) at four corners, the bottom surface of the upper mold base (1) is provided with hollow rods (34) matching with the circular holes (35) at four corners, one of the circular holes (35) is connected to the water outlet end of the first water guide groove (37), and the hollow rod (34) in the circular hole (35) is connected to the water inlet end of the second water guide groove (38), one of the hollow rods (34) is connected to the water outlet end of the second water guide groove (38), and the circular hole (35) where the hollow rod (34) is located is connected to the water tank (3) through the connecting groove (36); A short shaft (9) is rotatably provided on the inner bottom surface of the water tank (3), a gear (13) is fixedly connected to the outer wall of the short shaft (9), and a water delivery mechanism acting on a water guide groove (37) is provided at the bottom; Symmetrical support plates (17) are provided on the inner bottom surface of the water tank (3), and a vibration mechanism acting on the upper mold base (1) and the lower mold base (2) is provided between the support plates (17), and a short shaft (27) is rotatably provided on the side surface of one of the support plates (17), and a gear (26) is rotatably provided on the short shaft (27) via an adjusting member; An electric push rod (31) is installed on the inner top surface of the water tank (3), and a driving mechanism is provided at the movable end of the electric push rod (31) for first acting on gear three (26) and then acting on gear one (13).

2. The mold base for plastic injection molding with rapid temperature drop demoulding function according to claim 1, characterized in that: The driving mechanism comprises a strip block (10) arranged at the movable end of the electric push rod (31), a strip groove (24) provided on the strip block (10), a movable block (39) slidably arranged in the strip groove (24), and a compression spring (25), wherein the compression spring (25) is located at one end of the electric push rod (31), the movable block (39) is fixedly connected to a strip tooth plate 2 (30) meshing with a gear 3 (26), and the strip block (10) is fixedly connected to a strip tooth plate 1 (11) matching with a gear 1 (13).

3. The mold base for plastic injection molding with rapid temperature drop demoulding function according to claim 1, characterized in that: The water delivery mechanism comprises a mounting plate (6) fixedly connected to the inner wall of the water tank (3), a sealing box (22) fixedly connected to the mounting plate (6), and a piston (33) slidably arranged in the sealing box (22); a circular plate (14) is fixedly connected to the bottom of the short shaft (9); a short cylinder (29) is fixedly connected to the edge of the circular plate (14); an annular ring (28) is slidably arranged on the short cylinder (29); a connecting rod (23) is fixedly connected to the annular ring (28); and the connecting rod (23) is fixedly connected to the piston (33); a water outlet pipe (21) connected to the water inlet end of the water guide groove (37) is provided on the sealing box (22); a one-way water outlet valve (20) is provided on the water outlet pipe (21); a water inlet pipe (5) is provided on the sealing box (22); the bottom of the water inlet pipe (5) extends to the bottom of the water tank (3); and a one-way water inlet valve (4) is provided on the water inlet pipe (5).

4. The mold base for plastic injection molding with rapid temperature drop demoulding function according to claim 3, characterized in that: The second connecting rod (23) is fixedly connected to the first connecting rod (15), the bottom of the first connecting rod (15) is fixedly connected to a stirring plate (7), and the stirring plate (7) is slidably arranged on the inner bottom surface of the water tank (3), and a plurality of strip-shaped openings (12) are evenly opened on the stirring plate (7).

5. The mold base for plastic injection molding with rapid temperature drop demoulding function according to claim 4, characterized in that: The vibration mechanism comprises a torsion spring shaft (19) rotatably arranged between support plates (17) and a plurality of striking blocks (18) uniformly fixed to the torsion spring shaft (19); one end of the torsion spring shaft (19) is fixedly connected to a gear (16); and an incomplete gear (32) matching the gear (16) is fixedly connected to the short shaft (27).

6. The mold base for plastic injection molding with rapid temperature drop demoulding function according to claim 1, characterized in that: A circular cavity (41) is provided in the gear (26), a ratchet (40) is fixedly connected to the outer wall of the short shaft (27) in the circular cavity (41), and a ratchet pawl (42) cooperating with the ratchet (40) is provided on the inner wall of the circular cavity (41) through the rotation of the torsion spring shaft (2).

7. The mold base for plastic injection molding with rapid temperature drop demoulding function according to claim 1, characterized in that: The water guide groove 1 (37) and the water guide groove 2 (38) are both composed of a plurality of U-shaped grooves, and each U-shaped groove is connected end to end.

Images