Injection mold with quantitative injection molding structure and use method

Abstract

The invention discloses an injection mold with a quantitative injection molding structure and a using method, the injection mold comprises a base, a lower mold body, an upper mold body and a moving controller, the lower mold body is installed above the base, the upper mold body is arranged above the lower mold body, the moving controller is connected above the upper mold body, and the moving controller is connected above the upper mold body. The moving controller is installed above the base to control movement of the upper mold body, and a storage bin is arranged above the base and used for storing injection molding materials. The injection mold with the quantitative injection molding structure is provided with the material pushing plate capable of automatically moving, when the attaching base moves downwards for injection molding, the material pushing plate can move into the movable block and move downwards along with the movable block to open the communication opening for injection molding, after injection molding is completed, the attaching base moves upwards, and the material pushing plate can automatically reset to enter the communication opening again; and the residual injection molding liquid in the communicating port is pushed into the mold, so that the injection molding liquid is prevented from staying in the communicating port to cause subsequent blockage, and the waste of the injection molding liquid can also be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an injection mold with a quantitative injection structure and a use method thereof. Background Art

[0002] An injection mold is a common product processing tool. By adding injection liquid into the internal cavity, opening the mold and taking out the product after cooling and forming, the desired product can be obtained. When the injection mold is used, its injection volume needs to be controlled to ensure the consistency of the quality of its injection molded products. At present, the injection volume in the mold is generally controlled by quantitative pressurization. The injection port is generally set on the upper mold body. The application number is CN202223100925.2. An injection mold with quantitative injection molding function disclosed on May 26, 2023, can adjust the amount of raw materials for injection molding by setting an adjustment device and a spring to cooperate with each other, so that the raw materials for each injection molding are the same, ensuring the production quality of the same product. By setting a measuring device, the distance that the pressure plate descends can be measured, which is convenient for subsequent rapid adjustment of the amount of injection molding raw materials for the same product; application number CN201920709535.4, an injection mold for quantitative injection molding for pipe production disclosed on March 13, 2020, is a method of opening a first solenoid valve to transport the injection molding raw material in the raw material box to the quantitative box, and fill the quantitative box with the injection molding raw material, and then close the first solenoid valve, open the second solenoid valve, and discharge all the injection molding raw material inside the quantitative box through the injection port, thereby realizing the quantitative discharge of the injection molding raw material, and facilitating the production of the same type of pipes, and by pulling the handle outward, the handle drives the insertion rod to move, so that the insertion rod is moved out of the card slot, and at the same time, the electric push rod is started, so that the electric push rod pulls the second support plate to move downward, so that the second support plate drives the quantitative box to move downward, and the connecting pipe can be removed from the feeding pipe, so that the quantitative box can be replaced conveniently, and quantitative boxes of different capacities can be replaced conveniently, so as to realize the production of pipes of different capacities;

[0003] When the existing injection molding mold is performing injection molding, the injection liquid is transmitted through the delivery pipe. After the injection molding is completed, injection liquid will remain in the injection pipe. The residual injection liquid always stays in the pipe and will gradually solidify as the mold cools down. The subsequent cooling of the injection liquid in the delivery pipe will cause blockage of the delivery pipe, affecting the normal use of the subsequent injection mold. Summary of the invention

[0004] The object of the present invention is to provide an injection mold with a quantitative injection molding structure and a method of use, so as to solve the problem proposed in the above-mentioned background technology that when the injection molding mold is performing injection molding, the injection liquid is transmitted through a conveying pipe, and injection liquid will remain in the injection molding pipe after the injection molding is completed. The residual injection molding liquid always stays in the pipe, and the subsequent cooling of the injection molding liquid in the conveying pipe will cause blockage of the conveying pipe.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an injection mold with a quantitative injection molding structure, comprising a base, a lower mold body, an upper mold body and a moving controller, wherein the lower mold body is installed above the base, and the upper mold body is arranged above the lower mold body, and the upper mold body is connected to the moving controller, and the moving controller is installed above the base to control the movement of the upper mold body, and a storage bin is arranged above the base for storing injection molding material, and a cover body is installed above the storage bin, and an injection molding pressurizer is installed above the cover body to provide pressure in the storage bin so that the injection molding material can be discharged, a connecting pipe is installed below the storage bin, and the lower end side of the connecting pipe is connected to a conveying pipe, the conveying pipe is located on the right side of the lower mold body, and a connecting port is arranged at the left end of the conveying pipe, the connecting port is opened in the cavity of the lower mold body, and the cavity and the conveying pipe are connected, The push plate is provided inside the connecting port to cover the inner side of the connecting port, and a movable block is provided below the connecting tube, and an up and down sliding structure is formed between the movable block and the connecting tube, and a moving control mechanism is provided on the right side of the push plate, and the push plate is connected to the movable block through the moving control mechanism, so that the push plate can be stored in the movable block and moved out of the connecting port; a first spring is connected below the movable block to provide an upward thrust for the movable block, and a fitting seat is provided inside the connecting tube, and the injection plastic in the conveying tube can be brought back to the storage bin by moving the fitting seat upward, and the radial outer side of the fitting seat is fitted with the inner wall of the connecting tube, and a heater is fixed above the fitting seat to heat the connecting tube and the injection plastic in the storage bin, and a vertical control mechanism is provided on the outer side of the fitting seat for controlling the movement of the fitting seat in the conveying tube.

[0006] To further optimize the technical solution, an exhaust hole is provided above the upper mold body to discharge the gas in the cavity during injection molding, and an addition port is installed above the cover body to replenish the injection plastic in the storage bin.

[0007] To further optimize the technical solution, the mobile control mechanism includes a second spring, a third control rope, a third reel and a rotation control mechanism;

[0008] The second spring is fixed on the right side of the push plate to provide a left thrust for the push plate to keep the connecting port blocked;

[0009] The third control rope is fixed on the right side of the push plate to control the movement of the push plate;

[0010] A third winding shaft is rotatably mounted inside the movable block, and the right end of the third control rope is wound around the surface of the third winding shaft;

[0011] The rotation control mechanism controls the rotation of the third winding shaft so that the push plate is automatically moved out of the communication port when the laminating seat is lowered.

[0012] To further optimize the technical solution, a positioning block is fixed to the left end of the connecting port, and the positioning block and the left side surface of the push plate form a concave-convex matching structure to limit the maximum moving distance of the push plate, so that the subsequent push plate can stably move to the left side of the connecting port and keep it flush with it.

[0013] To further optimize the technical solution, the rotation control mechanism includes a transmission gear and a control plate;

[0014] A transmission gear is fixed on the surface of the third winding shaft and rotates synchronously with the third winding shaft;

[0015] The control plate is arranged on the outside of the transmission gear and forms a meshing connection between the transmission gear, and an up and down sliding structure is formed between the control plate and the movable block, and the upper end of the control plate passes through the upper surface of the movable block. Subsequently, the control plate is squeezed by the fitting seat so that it can drive the transmission gear and the third winding shaft to rotate.

[0016] To further optimize the technical solution, a limit block is arranged below the movable block, and a telescopic structure is formed between the limit block and the movable block, and a third spring is arranged at the inner end of the limit block to provide an outward thrust for the limit block, a limit groove is arranged inside the connecting tube, and a locking structure is formed between the limit groove and the limit block to limit the position of the movable block, a first magnet is fixed to the inner end of the limit block, and a second magnet is fixed below the control plate, the second magnet and the first magnet have opposite poles, and when the control plate moves downward to the maximum, the second magnet and the first magnet attract each other, and the connection between the limit block and the limit groove is released, so that the movable block can move downward.

[0017] To further optimize the technical solution, the bottom of the conveying tube is arranged in an open shape so that the air pressure under the fitting seat can remain stable during the movement of the fitting seat.

[0018] To further optimize the technical solution, the vertical control mechanism includes a first control rope, a fixing block, a first winding shaft and a first motor;

[0019] A first control rope is fixed above the heater to provide an upward pulling force therefor;

[0020] A fixing block, fixed below the cover body;

[0021] A first reel is rotatably mounted inside the fixed block, and the upper end of the first control rope is wound around the surface of the first reel;

[0022] The first motor is connected to the first reel to control the rotation of the first reel. The position of the fitting seat can be controlled by reeling in the first control rope through the first reel.

[0023] To further optimize the technical solution, a second control rope is fixed below the fitting seat, and the lower end of the second control rope passes through the interior of the movable block, and the lower end of the second control rope is connected to a second winding shaft, and the second winding shaft is rotatably installed at the bottom of the connecting tube, and a second motor is connected to the end of the second winding shaft to control the rotation of the second winding shaft. The second control rope is wound up by rotating the second winding shaft, which can assist the downward movement of the fitting seat.

[0024] A method for using an injection mold with a quantitative injection molding structure, the method comprising the following steps:

[0025] Step 1: When in use, the injection liquid to be used can be added into the storage bin. In the default state, the fitting seat is located at the upper end of the connecting tube, and the connecting tube does not contain the injection liquid. The injection liquid in the storage bin can be heated by the heater on the fitting seat to keep it in a flowing state;

[0026] Step 2: When the fitting seat moves to the inside of the connecting tube, the heater can heat the injection liquid in the connecting tube to prevent it from cooling and condensing. During injection molding, the upper mold body can be moved downward to make it contact with the lower mold body to form a mold, and then the fitting seat is controlled to move downward to introduce the injection liquid in the storage bin into the connecting tube;

[0027] Step 3: The fitting seat moves downward to drive the push plate to move, and store it to the outside of the movable block. Then the movable block is pushed downward to move the fitting seat to the bottom of the delivery pipe, so that the injection liquid in the connecting pipe can enter the mold through the delivery pipe and the connecting port, and cooperate with the injection pressurizer to control the injection volume.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The injection mold with a quantitative injection structure has a connecting port opened on the side of the lower mold body as the injection port. The subsequent movement of the upper mold body will not affect the position of the connecting port, and the injection molding from bottom to top can also make the subsequent injection liquid in the cavity more completely filled. After the injection molding, the residual injection liquid in the delivery pipe can be brought back to the storage bin for storage by moving the fitting seat. The heating of the heater keeps the injection liquid in a liquid state, which is convenient for subsequent use.

[0030] (2) The injection mold with a quantitative injection molding structure is provided with an automatically movable push plate. When the fitting seat moves downward for injection molding, the push plate can move into the movable block and move downward with the movable block to open the connecting port for injection molding. After the injection molding is completed, the fitting seat moves upward, and the push plate can automatically reset and re-enter the connecting port to push the residual injection molding liquid in the connecting port into the mold, thereby avoiding the injection molding liquid staying in the connecting port to cause subsequent blockage, and also reducing the waste of injection molding liquid;

[0031] (3) The injection mold with a quantitative injection molding structure provides air pressure to the storage bin through the injection molding pressurizer, pushing the injection liquid inside it to transfer to the mold. The quantitative control of the injection liquid can be achieved by controlling the pressure of the injection molding pressurizer, and the control of the pressure in the storage bin can also assist the movement of the fitting seat and reduce its movement resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of the material storage bin of the present invention;

[0034] Figure 3 It is a schematic diagram of the three-dimensional structure of the lower mold body of the present invention;

[0035] Figure 4 This is a schematic diagram of the main cross-sectional structure of the connecting pipe of the present invention;

[0036] Figure 5 This is a schematic diagram of the main cross-sectional structure of the fixing block of the present invention;

[0037] Figure 6 This is a schematic diagram of the side cross-sectional structure of the bottom of the connecting pipe of the present invention;

[0038] Figure 7 It is a schematic diagram of the three-dimensional structure of the movable block of the present invention;

[0039] Figure 8 This is a schematic diagram of the main cross-sectional structure of the movable block of the present invention;

[0040] Fig. 9 It is a schematic diagram of the top-sectional structure of the limit block of the present invention.

[0041] In the figure: 1. base; 2. lower mold body; 3. upper mold body; 4. mobile controller; 5. exhaust hole; 6. storage bin; 7. cover body; 8. injection pressurizer; 9. addition port; 10. connecting pipe; 11. conveying pipe; 12. connecting port; 13. push plate; 14. positioning block; 15. fitting seat; 16. heater; 17. first control rope; 18. fixed block; 19. first winding shaft; 20. first motor; 21. second control rope; 22. second winding shaft; 23. second motor; 24. movable block; 25. first spring; 26. second spring; 27. third control rope; 28. third winding shaft; 29. ​​transmission gear; 30. control board; 31. limit block; 32. third spring; 33. first magnet; 34. second magnet; 35. limit groove. DETAILED DESCRIPTION

[0042] 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.

[0043] See also Figure 1-Figure 9 The present invention provides a technical solution: an injection mold with a quantitative injection structure, comprising a base 1, a lower mold body 2, an upper mold body 3 and a mobile controller 4, the lower mold body 2 is installed above the base 1, the upper mold body 3 is arranged above the lower mold body 2, and the upper mold body 3 is connected to the mobile controller 4, the mobile controller 4 is installed above the base 1 to control the movement of the upper mold body 3, a storage bin 6 is arranged above the base 1 for storing injection molding material, and a cover body 7 is installed above the storage bin 6, and the cover body 7 is installed above the cover body 7. An injection molding pressurizer 8 is installed to provide pressure in the storage bin 6 so that the injection plastic can be discharged. A connecting pipe 10 is installed below the storage bin 6, and the lower end side of the connecting pipe 10 is connected to a delivery pipe 11. The delivery pipe 11 is located on the right side of the lower mold body 2, and a connecting port 12 is provided at the left end of the delivery pipe 11. The connecting port 12 is opened in the cavity of the lower mold body 2 to connect the cavity and the delivery pipe 11. A push plate 13 is provided inside the connecting port 12 to cover the inner side of the connecting port 12. An active The movable block 24 and the connecting tube 10 form an up-and-down sliding structure. A moving control mechanism is provided on the right side of the push plate 13. The push plate 13 is connected to the movable block 24 through the moving control mechanism, so that the push plate 13 can be stored inside the movable block 24. The push plate 13 is moved out of the connecting port 12. A first spring 25 is connected below the movable block 24 to provide an upward thrust for the movable block 24. A fitting seat 15 is provided inside the connecting tube 10. The injection molding material in the conveying tube 11 can be moved upward by moving the fitting seat 15 upward. Brought back into the storage bin 6, the radial outer side of the fitting seat 15 is fitted with the inner wall of the connecting pipe 10, and a heater 16 is fixed above the fitting seat 15 to heat the connecting pipe 10 and the injection plastic in the storage bin 6. A vertical control mechanism is provided on the outer side of the fitting seat 15 to control the movement of the fitting seat 15 in the conveying pipe 11. An exhaust hole 5 is provided above the upper mold body 3 to discharge the gas in the cavity during injection molding. An addition port 9 is installed above the cover body 7 to supplement the injection plastic in the storage bin 6.

[0044] A method for using an injection mold with a quantitative injection molding structure, the method comprising the following steps:

[0045] Step 1: When in use, the injection liquid to be used can be added into the storage bin 6. In the default state, the fitting seat 15 is located at the upper end of the connecting tube 10, and the connecting tube 10 does not contain the injection liquid. The heater 16 on the fitting seat 15 can heat the injection liquid in the storage bin 6 to keep it in a flowing state;

[0046] Step 2: When the fitting seat 15 moves to the inside of the connecting tube 10, the heater 16 can heat the injection liquid in the connecting tube 10 to prevent it from cooling and condensing. During injection molding, the upper mold body 3 can be moved downward to make it contact with the lower mold body 2 to form a mold, and then the fitting seat 15 is controlled to move downward to introduce the injection liquid in the storage bin 6 into the connecting tube 10;

[0047] Step three: The fitting seat 15 moves downward to drive the push plate 13 to move, and store it to the outside of the movable block 24, and then push the movable block 24 to move downward, and move the fitting seat 15 to the bottom of the delivery pipe 11, so that the injection liquid in the connecting pipe 10 can enter the mold through the delivery pipe 11 and the connecting port 12, and cooperate with the injection pressurizer 8 to control the injection amount.

[0048] The movement control mechanism includes a second spring 26, a third control rope 27, a third winding shaft 28 and a rotation control mechanism. The second spring 26 is fixed to the right side of the push plate 13 to provide a left thrust for the push plate 13 to keep the connecting port 12 blocked. The third control rope 27 is fixed to the right side of the push plate 13 to control the movement of the push plate 13. The third winding shaft 28 is rotatably mounted inside the movable block 24. The right end of the third control rope 27 is wound around the surface of the third winding shaft 28. The rotation control mechanism controls the rotation of the third winding shaft 28. , so that when the fitting seat 15 is lowered, the push plate 13 automatically moves out of the communication port 12, a positioning block 14 is fixed to the left end of the communication port 12, and the positioning block 14 and the left surface of the push plate 13 form a concave-convex matching structure, which limits the maximum moving distance of the push plate 13, so that the subsequent push plate 13 can stably move to the left side of the communication port 12 and keep it flush with it. The rotation control mechanism includes a transmission gear 29 and a control board 30. The transmission gear 29 is fixed on the surface of the third winding shaft 28 and keeps synchronous rotation with the third winding shaft 28. The control board 30 0, arranged on the outer side of the transmission gear 29 and the transmission gear 29 to form a meshing connection, and the control plate 30 and the movable block 24 form an up-and-down sliding structure, and the upper end of the control plate 30 passes through the upper surface of the movable block 24, and the control plate 30 is subsequently squeezed by the fitting seat 15 so that it can drive the transmission gear 29 and the third winding shaft 28 to rotate, and a limit block 31 is arranged below the movable block 24, and a telescopic structure is formed between the limit block 31 and the movable block 24, and a third spring 32 is arranged at the inner end of the limit block 31, which is 1 provides an external thrust, a limiting groove 35 is arranged inside the connecting tube 10, and a clamping structure is formed between the limiting groove 35 and the limiting block 31 to limit the position of the movable block 24, a first magnet 33 is fixed to the inner end of the limiting block 31, and a second magnet 34 is fixed below the control board 30, and the second magnet 34 and the first magnet 33 have opposite magnetic poles. When the control board 30 moves downward to the maximum, the second magnet 34 and the first magnet 33 attract each other, and the connection between the limiting block 31 and the limiting groove 35 is released, so that the movable block 24 can move downward.

[0049] When the fitting seat 15 moves downward, it will first contact the control plate 30, pushing the control plate 30 to move. When the control plate 30 moves, it drives the third winding shaft 28 to rotate by meshing with the transmission gear 29, so that the third winding shaft 28 reels the third control rope 27, driving the push plate 13 to move. When the push plate 13 moves into the movable block 24, the control plate 30 moves down to the maximum position. At this time, the first magnet 33 and the second magnet 34 are opposite to each other, and the first magnet 33 and the second magnet 34 attract each other, so that the limit block 31 moves, releases its connection with the limit groove 35, and the fitting seat 1 5 continues to move downward, so as to push the movable block 24 to move downward, thereby performing subsequent injection molding. After the injection molding is completed, the fitting seat 15 is controlled to move upward to bring the injection liquid in the connecting pipe 10 back to the storage bin 6. When the fitting seat 15 moves upward, the movable block 24 will also move upward under the action of the first spring 25. When the push plate 13 moves to the connecting port 12, the push plate 13 can move into the connecting port 12 under the action of the second spring 26, push the injection liquid remaining in the connecting port 12 into the mold, and keep it in contact with the inner side of the connecting port 12 to ensure the flatness of the subsequent product injection port.

[0050] The lower part of the conveying tube 11 is set in an open shape, so that the air pressure under the fitting seat 15 can be kept stable during the movement of the fitting seat 15. The vertical control mechanism includes a first control rope 17, a fixed block 18, a first winding shaft 19 and a first motor 20. The first control rope 17 is fixed above the heater 16 to provide an upward pulling force for it. The fixed block 18 is fixed below the cover body 7. The first winding shaft 19 is rotatably installed inside the fixed block 18. The upper end of the first control rope 17 is wound around the surface of the first winding shaft 19. The first motor 20 is connected to the first winding shaft 19 to control the first winding. The rotation of the shaft 19 and the winding of the first control rope 17 by the first winding shaft 19 can control the position of the fitting seat 15. A second control rope 21 is fixed below the fitting seat 15, and the lower end of the second control rope 21 passes through the interior of the movable block 24, and the lower end of the second control rope 21 is connected to a second winding shaft 22. The second winding shaft 22 is rotatably installed at the bottom of the connecting tube 10, and the end of the second winding shaft 22 is connected to a second motor 23 to control the rotation of the second winding shaft 22. The second control rope 21 is wound up by the rotation of the second winding shaft 22, which can assist the downward movement of the fitting seat 15.

[0051] When controlling the fitting seat 15 to move downward, the second motor 23 can be started to drive the second winding shaft 22 to rotate, so as to wind up the second control rope 21 and pull the fitting seat 15 downward to move. At the same time, the first winding shaft 19 can be controlled by the first motor 20 to unwind the first control rope 17 to adapt to the movement of the fitting seat 15. When controlling the fitting seat 15 to move upward, the first winding shaft 19 can be used to wind up the first control rope 17 and the second winding shaft 22 can be used to unwind the second control rope 21.

[0052] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection mold with a quantitative injection structure, comprising a base (1), a lower mold body (2), an upper mold body (3) and a movement controller (4), wherein the lower mold body (2) is installed above the base (1), the upper mold body (3) is arranged above the lower mold body (2), and the movement controller (4) is connected to the upper part of the upper mold body (3), and the movement controller (4) is installed above the base (1) to control the movement of the upper mold body (3); Features: A storage bin (6) is arranged above the base (1) for storing injection molding plastic, and a cover (7) is installed above the storage bin (6), and an injection molding pressurizer (8) is installed above the cover (7) to provide pressure in the storage bin (6) so that the injection molding plastic can be discharged, a connecting pipe (10) is installed below the storage bin (6), and the lower end side of the connecting pipe (10) is connected to a conveying pipe (11), and the conveying pipe (11) is located at the lower mold body (2). The right side of the connecting tube (10) is provided with a connecting port (12) at the left end of the conveying tube (11), the connecting port (12) is opened in the cavity of the lower mold body (2), the cavity and the conveying tube (11) are connected, a push plate (13) is provided inside the connecting port (12), the inner side of the connecting port (12) is shielded, a movable block (24) is provided below the connecting tube (10), and an up-and-down sliding structure is formed between the movable block (24) and the connecting tube (10), the push plate A moving control mechanism is provided on the right side of the connecting pipe (10), and the push plate (13) is connected to the movable block (24) through the moving control mechanism, so that the push plate (13) can be stored in the movable block (24), and the push plate (13) can be moved out of the connecting port (12). A first spring (25) is connected below the movable block (24) to provide an upward thrust for the movable block (24). A fitting seat (15) is provided inside the connecting pipe (10), and a fitting seat (25) is provided inside the connecting pipe (10). The upward movement of the fitting seat (15) can bring the injection plastic in the conveying pipe (11) back into the storage bin (6); the radial outer side of the fitting seat (15) is arranged to fit the inner wall of the connecting pipe (10), and a heater (16) is fixed above the fitting seat (15) to heat the injection plastic in the connecting pipe (10) and the storage bin (6); and a vertical control mechanism is arranged on the outer side of the fitting seat (15) for controlling the movement of the fitting seat (15) in the conveying pipe (11).

2. The injection mold with a quantitative injection structure according to claim 1, characterized in that: An exhaust hole (5) is provided above the upper mold body (3) to discharge the gas in the mold cavity during injection molding, and an addition port (9) is installed above the cover body (7) to replenish the injection molding material in the storage bin (6).

3. The injection mold with a quantitative injection structure according to claim 1, characterized in that: The movement control mechanism comprises a second spring (26), a third control rope (27), a third reel (28) and a rotation control mechanism; A second spring (26) is fixed on the right side of the push plate (13) to provide a left thrust for the push plate (13) so that the push plate (13) keeps blocking the communication port (12); A third control rope (27) is fixed to the right side of the push plate (13) to control the movement of the push plate (13); A third reel (28) is rotatably mounted inside the movable block (24), and the right end of the third control rope (27) is wound around the surface of the third reel (28); The rotation control mechanism controls the rotation of the third winding shaft (28) so that the push plate (13) automatically moves out of the communication port (12) when the laminating seat (15) is lowered.

4. The injection mold with a quantitative injection structure and the method of using the same according to claim 3, characterized in that: A positioning block (14) is fixed to the left end of the communication port (12), and the positioning block (14) and the left side surface of the push plate (13) form a concave-convex matching structure to limit the maximum moving distance of the push plate (13).

5. The injection mold with a quantitative injection structure according to claim 3, characterized in that: The rotation control mechanism comprises a transmission gear (29) and a control plate (30); A transmission gear (29) is fixed on the surface of the third winding shaft (28) and rotates synchronously with the third winding shaft (28); The control plate (30) is arranged on the outer side of the transmission gear (29) and is meshed with the transmission gear (29). An up-and-down sliding structure is formed between the control plate (30) and the movable block (24), and the upper end of the control plate (30) penetrates the upper surface of the movable block (24).

6. The injection mold with a quantitative injection structure according to claim 5, characterized in that: A limiting block (31) is arranged below the movable block (24), and a telescopic structure is formed between the limiting block (31) and the movable block (24), and a third spring (32) is arranged at the inner end of the limiting block (31) to provide an external thrust for the limiting block (31). A limiting groove (35) is arranged inside the connecting tube (10), and a snap-fit ​​structure is formed between the limiting groove (35) and the limiting block (31) to limit the position of the movable block (24). A first magnet (33) is fixed at the inner end of the limiting block (31), and a second magnet (34) is fixed below the control board (30). The second magnet (34) and the first magnet (33) have opposite magnetic poles. When the control board (30) moves downward to the maximum, the second magnet (34) and the first magnet (33) attract each other, and the connection between the limiting block (31) and the limiting groove (35) is released, so that the movable block (24) can move downward.

7. The injection mold with a quantitative injection structure according to claim 1, characterized in that: The lower part of the conveying pipe (11) is arranged in an open shape, so that the air pressure below the fitting seat (15) can be kept stable during the movement of the fitting seat (15).

8. An injection mold with a quantitative injection structure according to claim 1 or 7, characterized in that: The vertical control mechanism comprises a first control rope (17), a fixing block (18), a first winding shaft (19) and a first motor (20); A first control rope (17), fixed above the heater (16) to provide an upward pulling force therefor; A fixing block (18) fixed below the cover body (7); A first reel (19) is rotatably mounted inside the fixed block (18), and the upper end of the first control rope (17) is wound around the surface of the first reel (19); The first motor (20) is connected to the first winding shaft (19) to control the rotation of the first winding shaft (19).

9. The injection mold with a quantitative injection structure according to claim 8, characterized in that: A second control rope (21) is fixed below the fitting seat (15), and the lower end of the second control rope (21) passes through the interior of the movable block (24), and the lower end of the second control rope (21) is connected to a second winding shaft (22), the second winding shaft (22) is rotatably mounted on the bottom of the connecting tube (10), and the end of the second winding shaft (22) is connected to a second motor (23) to control the rotation of the second winding shaft (22).

10. A method for using an injection mold with a quantitative injection structure according to claim 2, characterized in that: The method of use includes the following steps: Step 1: When in use, the injection liquid to be used can be added into the storage bin (6). In the default state, the fitting seat (15) is located at the upper end of the connecting tube (10), and the connecting tube (10) does not contain the injection liquid. The heater (16) on the fitting seat (15) can heat the injection liquid in the storage bin (6) to keep it in a flowing state; Step 2: When the fitting seat (15) moves to the inside of the connecting tube (10), the heater (16) can heat the injection liquid in the connecting tube (10) to prevent it from cooling and condensing. During injection molding, the upper mold body (3) can be moved downward to make it contact with the lower mold body (2) to form a mold, and then the fitting seat (15) is controlled to move downward to introduce the injection liquid in the storage bin (6) into the connecting tube (10); Step 3: The fitting seat (15) moves downward to drive the push plate (13) to move and store it on the outside of the movable block (24), and then push the movable block (24) to move downward, and move the fitting seat (15) to the bottom of the delivery pipe (11), so that the injection liquid in the connecting pipe (10) can enter the mold through the delivery pipe (11) and the connecting port (12), and cooperate with the injection pressurizer (8) to control the injection volume.

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