Double-color injection mold capable of rapidly deforming and demolding

Abstract

The invention discloses a double-color injection mold capable of rapidly deforming and demolding, and relates to the technical field of injection molds, the double-color injection mold comprises an upper mold and a lower mold, the upper mold and the lower mold are used for injection molding of products, the double-color injection mold further comprises an air cylinder, the air cylinder is fixedly installed in the lower mold, and the output end of the air cylinder is fixedly connected with a lifting plate; a push rod is vertically and fixedly connected to the lifting plate, an inner pulling plate is horizontally and slidably connected into a mold core on the lower mold, and the side wall of the inner pulling plate abuts against the inner wall of the product. The two inner pulling plates can push a product from the inner wall of the flanging position of the product through step structures on the side faces, so that a flanging structure of the product can be separated from a mold core of a lower mold firstly, and along with continuous action of an air cylinder, a pushing plate drives a traction plate to synchronously move upwards; the product is completely ejected from the mold core of the lower mold to be demolded through the ejector rod and the push plate, and the elastic deformation performance of the product is completely utilized to prevent the product from being forcibly demolded to cause damage.

Description

A two-color injection mold for rapid deformation and demolding Technical Field

[0001] This invention relates to the field of injection mold technology, and in particular to a two-color injection mold for rapid deformation and demolding. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. At a certain temperature, plastic material is completely molten through a screw agitation and injected into a mold cavity under high pressure. After cooling and solidification, a molded product is obtained. This method is suitable for the mass production of complex-shaped parts. The advantages of injection molding include high production speed and efficiency, automated operation, a wide variety of colors and shapes (from simple to complex), and sizes ranging from large to small. It also produces precise dimensions, facilitates product updates, and can create complex-shaped parts. Injection molding is suitable for mass production and molding processes involving complex shapes.

[0003] Injection molding can be used to produce products with complex shapes. Currently, some products have large flanges, which have structures that can interfere with the mold undercut. In existing technologies, such products are mostly demolded by adding a movable base plate between the upper and lower molds. After the upper mold is opened, the product's flange structure is forced to deform elastically by moving the base plate upwards. However, this method is not suitable for products with large flange areas. Because the contact area between the flange structure and the mold core of the lower mold is large, forcibly lifting the product may damage it. Moreover, the product will retain residual heat when cooling and demolding, which may cause burns when workers remove the product from the lower mold. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing two-color injection molds for rapid deformation and demolding, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is how to address the issue that the contact area between the flange structure of the product and the mold core of the lower mold is large, which may cause damage to the product if the product is forcibly lifted, and the product will retain residual heat when it is cooled and demolded, which may cause burns to the workers when they remove the product from the lower mold.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a two-color injection mold for rapid deformation and demolding, comprising an upper mold and a lower mold, wherein the upper mold and the lower mold are used for injection molding products, and further comprising a cylinder, wherein the cylinder is fixedly installed inside the lower mold, and a lifting plate is fixedly connected to the output end of the cylinder, wherein a push rod is vertically fixedly connected to the lifting plate, wherein an inner pull plate is horizontally slidably connected inside the mold core of the lower mold, and the side wall of the inner pull plate abuts against the inner wall of the product; the bottom of the inner pull plate is configured as a first inclined surface, the top of the push rod is configured as a spherical surface, the spherical surface abuts against the first inclined surface, a traction plate is vertically slidably connected inside the lower mold, a push plate is fixedly connected to the top of the traction plate, the inner pull plate is horizontally elastically movably connected to the push plate, the bottom surface of the product is in contact with the top surface of the push plate, and the remaining part of the product is in contact with the cavity of the upper mold and the mold core of the lower mold respectively.

[0008] As a preferred embodiment of the two-color injection mold for rapid deformation and demolding described in this invention, wherein: a push rod is vertically fixedly connected to the traction plate, a first receiving channel is provided on the mold core of the lower mold, one end of the push rod extends into the interior of the first receiving channel, and the top surface of the push rod contacts the top inner wall of the product.

[0009] As a preferred embodiment of the two-color injection mold for rapid deformation and demolding described in this invention, the lower mold has a second receiving channel, a connecting rod is fixedly connected between the traction plate and the push plate, and the connecting rod is axially slidably connected in the second receiving channel.

[0010] As a preferred embodiment of the two-color injection mold for rapid deformation and demolding described in this invention, the ejector pin has a U-shaped channel and an exhaust port inside. One end of the exhaust port is connected to the inside of the U-shaped channel, and the other end of the exhaust port is connected to the first receiving channel. Both ends of the bottom of the U-shaped channel are fixedly connected to connecting hoses.

[0011] As a preferred embodiment of the two-color injection mold for rapid deformation and demolding described in this invention, a telescopic rod and a spring are fixedly connected between the inner pull plate and the push plate, and the spring is sleeved on the telescopic rod.

[0012] As a preferred embodiment of the two-color injection mold for rapid deformation and demolding described in this invention, the lower mold is vertically rotatably connected to a rotating shaft, a limiting protrusion is fixedly connected to the rotating shaft, a traction plate is slidably connected to the rotating shaft along the axial direction, a through hole is provided on the lifting plate, the lifting plate is slidably connected to the rotating shaft through the through hole, a spiral groove is provided on the rotating shaft, a first guide block is fixedly connected inside the through hole, and the first guide block is slidably connected in the spiral groove.

[0013] As a preferred embodiment of the two-color injection mold for rapid deformation and demolding described in this invention, the upper mold and the lower mold are both horizontally slidably connected to two opposite sides, a protective plate is vertically slidably connected to the side plate, a rack is fixedly connected to the side plate, a drive gear is coaxially fixedly connected to the rotating shaft, and one end of the rack is slidably connected in the lower mold and meshes with the drive gear.

[0014] As a preferred embodiment of the two-color injection mold for rapid deformation and demolding described in this invention, the lower mold is fixedly connected to a support plate. The support plate has a first inclined groove segment, a first horizontal groove segment, a vertical groove segment, a second horizontal groove segment, and a second inclined groove segment that are connected end to end. The first inclined groove segment, the first horizontal groove segment, the vertical groove segment, and the second horizontal groove segment have the same depth and are greater than the depth of the second inclined groove segment. The difference in depth between the second inclined groove segment and the second horizontal groove segment is set as a second inclined surface for transition. The side of the support plate is elastically and movably connected to a second guide block, which is slidably connected in the first inclined groove segment.

[0015] As a preferred embodiment of the two-color injection mold for rapid deformation and demolding described in this invention, the side plate is provided with a guide rail groove, the protective plate is fixedly connected with a guide rail, and the side plate is slidably connected to the guide rail through the guide rail groove.

[0016] As a preferred embodiment of the two-color injection mold for rapid deformation and demolding described in this invention, wherein: an injection port is fixedly installed on the upper mold, the end of the injection port is connected to the cavity of the upper mold, an upper guide post is vertically fixedly installed on the upper mold, and a lower guide post is vertically fixedly installed on the lower mold, with the upper guide post and the lower guide post axially engaged.

[0017] The beneficial effects of this invention are as follows: This invention uses two inner pull plates to push the product from the inner wall of the product flange through the stepped structure on the side, so that the flange structure of the product can first separate from the mold core of the lower mold. As the cylinder continues to move, the push plate drives the traction plate to move upward synchronously, so that the product is completely lifted and demolded from the mold core of the lower mold by the push rod and the push plate. This fully utilizes the elastic deformation property of the product to prevent the product from being damaged by forced demolding.

[0018] This invention utilizes a U-shaped channel inside the ejector pin to achieve internal circulating cooling when the upper and lower molds are closed, thereby reducing the temperature of both molds. After the upper mold opens, the ejector pin lifts the product from the mold core of the lower mold, and the cooling gas inside the U-shaped channel can cool the inner wall of the product through the exhaust port, thus rapidly reducing the residual heat of the product and minimizing the risk of burns when workers handle the product.

[0019] The present invention provides side plates and protective plates on both opposite sides of the upper and lower molds. During the process of the ejector rod lifting the product, the side plates can drive the protective plates closer to the lower mold. At this time, the protective plates can move upward relative to the surface of the side plates. After the product is completely lifted, the protective plates move to the highest point and are located between the upper and lower molds to prevent the upper mold from suddenly falling and causing serious consequences when the workers take out the product. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a schematic diagram of the main structure of a two-color injection mold for rapid deformation and demolding.

[0022] Figure 2 is an exploded structural diagram of a two-color injection mold for rapid deformation and demolding.

[0023] Figure 3 is a cross-sectional view of a two-color injection mold for rapid deformation and demolding.

[0024] Figure 4 is a cross-sectional view of the ejector plate in a two-color injection mold for rapid deformation and demolding.

[0025] Figure 5 is a schematic diagram of the main structure of the lifting plate in a two-color injection mold for rapid deformation and demolding.

[0026] Figure 6 is a schematic diagram of the main structure of the lower mold in a two-color injection mold for rapid deformation and demolding.

[0027] Figure 7 is a schematic diagram of the internal structure of the ejector pin in a two-color injection mold for rapid deformation and demolding.

[0028] Figure 8 is a schematic diagram of the main structure of the rotating shaft in a two-color injection mold for rapid deformation and demolding.

[0029] Figure 9 is a schematic diagram of the connection structure between the side plate and the support plate in a two-color injection mold for rapid deformation and demolding.

[0030] Figure 10 is a schematic diagram of the main structure of the side plate in a two-color injection mold for rapid deformation and demolding.

[0031] Figure 11 is a schematic diagram of the main structure of the protective plate in a two-color injection mold for rapid deformation and demolding.

[0032] Figure 12 is a schematic diagram of the main structure of the support plate in a two-color injection mold for rapid deformation and demolding.

[0033] In the diagram: 1. Upper mold; 2. Lower mold; 3. Side plate; 31. Protective plate; 32. Guide rail groove; 33. Guide rail; 4. Product; 5. Cylinder; 6. Lifting plate; 61. Through hole; 7. Traction plate; 8. Connecting rod; 9. Push plate; 91. Telescopic rod; 92. Spring; 10. Inner pull plate; 101. First inclined plane; 11. Push rod; 111. Spherical surface; 12. Top rod; 121. U-shaped channel; 122. Exhaust port; 123. Connecting hose; 13. Rotating shaft ; 131. Limiting protrusion; 14. First guide block; 15. First receiving channel; 16. Second receiving channel; 17. Drive gear; 18. Rack; 19. Support plate; 191. First inclined groove section; 192. First horizontal groove section; 193. Vertical groove section; 194. Second horizontal groove section; 195. Second inclined groove section; 196. Second inclined surface; 20. Second guide block; 21. Injection port; 22. Upper guide post; 23. Lower guide post; 24. Spiral groove. Detailed Implementation

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0037] Example 1, referring to Figure 1, is the first embodiment of the present invention. This embodiment provides a two-color injection mold for rapid deformation and demolding, including an upper mold 1 and a lower mold 2. The upper mold 1 and the lower mold 2 are used for injection molding product 4. It also includes a cylinder 5, which is fixedly installed inside the lower mold 2. The output end of the cylinder 5 is fixedly connected to a lifting plate 6. A push rod 11 is vertically fixedly connected to the lifting plate 6. An inner pull plate 10 is horizontally slidably connected inside the mold core of the lower mold 2. The side wall of the inner pull plate 10 abuts against the inner wall of the product 4. The bottom of the inner pull plate 10 is set as a first inclined surface 101. The top of the push rod 11 is set as a spherical surface 111. The spherical surface 111 abuts against the first inclined surface 101. A traction plate 7 is vertically slidably connected inside the lower mold 2. A push plate 9 is fixedly connected to the top of the traction plate 7. The inner pull plate 10 is horizontally elastically movably connected to the push plate 9. The bottom surface of the product 4 is in contact with the top surface of the push plate 9. The remaining part of the product 4 is in contact with the cavity of the upper mold 1 and the mold core of the lower mold 2, respectively.

[0038] An injection port 21 is fixedly installed on the upper mold 1, and the end of the injection port 21 is connected to the cavity of the upper mold 1. An upper guide post 22 is vertically fixedly installed on the upper mold 1, and a lower guide post 23 is vertically fixedly installed on the lower mold 2. The upper guide post 22 and the lower guide post 23 are axially engaged.

[0039] Please refer to Figures 1 to 5. The injection molding machine injects molten liquid into the upper mold 1 and lower mold 2 through the injection port 21. The upper guide post 22 and lower guide post 23 guide the upper mold 1 and lower mold 2 when they are closed. After the product 4 is injection molded, the upper mold 1 opens first, and the cylinder 5 drives the lifting plate 6 to move upward inside the lower mold 2. When the lifting plate 6 moves, it drives the push rod 11 to move upward synchronously. At this time, the push rod 11 cooperates with the first inclined surface 101 on the side of the inner pull plate 10 through the spherical surface 111 at the top to push the inner pull plate 10 to move horizontally elastically. Overall, the two inner pull plates 10 are far apart inside the lower mold 2. Therefore, the inner pull plate 10 can push the product 4 from the inside of the mold core of the lower mold 2, that is, the inner wall of the flange of the product 4, through its own stepped structure, so that the flange of the product 4 undergoes elastic deformation. The flange of product 4 can be separated from the core of the lower mold 2. As the cylinder 5 continues to drive, the lifting plate 6 can contact the traction plate 7 after moving up a certain distance and push the traction plate 7 to move up synchronously. During the upward movement of the traction plate 7, the push rod 11 also moves up continuously. When the cylinder 5 pushes the traction plate 7 to the maximum stroke position through the lifting plate 6, the push rod 11 pushes the inner pull plate 10 to move horizontally elastically to the maximum stroke position. At this time, the protrusion on the inner wall of product 4 is completely separated from the core of the lower mold 2. During the upward movement of the traction plate 7, the push plate 9 can move synchronously, so that the push plate 9 separates product 4 from the core of the lower mold 2 from the bottom of product 4, thereby protecting product 4. In addition, during the separation process, the protruding part of product 4 will not rub against the core of the lower mold 2, further protecting product 4.

[0040] It should be noted that a telescopic rod 91 and a spring 92 are fixedly connected between the inner pull plate 10 and the push plate 9. The spring 92 is sleeved on the telescopic rod 91. When the two inner pull plates 10 move away from each other, they can compress the telescopic rod 91 and the spring 92 to store energy. After the push rod 11 descends, the spring 92 releases energy to drive the telescopic rod 91 and the inner pull plate 10 to reset. Since the spring 92 is close to the product 4, it is subjected to a higher temperature. The material of the spring 92 needs to be heat-resistant. In addition, during the vertical movement of the traction plate 7, an additional reset spring is needed to connect with the lower mold 2 so that the lifting plate 6 can reset the traction plate 7 through the reset spring after reset. The material of the reset spring also needs to be heat-resistant. In this embodiment, the material of both the spring 92 and the reset spring can be set as GH4169 alloy steel.

[0041] A push rod 12 is vertically fixedly connected to the traction plate 7. A first receiving channel 15 is opened on the mold core of the lower mold 2. One end of the push rod 12 extends into the interior of the first receiving channel 15, and the top surface of the push rod 12 contacts the top inner wall of the product 4.

[0042] Referring to Figures 3 and 4, the traction plate 7 can drive the ejector pin 12 to move synchronously during the continuous upward movement. In the initial state, the top surface of the ejector pin 12 is flush with the top surface of the mold core of the lower mold 2. When the ejector pin 12 moves upward, it can gradually lift the product 4 from the mold core of the lower mold 2. At the same time, the force applied to the bottom of the product 4 by the push plate 9 makes the product 4 more evenly stressed, thus facilitating the complete demolding of the product 4 from the mold core of the lower mold 2.

[0043] The lower mold 2 has a second receiving channel 16. A connecting rod 8 is fixedly connected between the traction plate 7 and the push plate 9. The connecting rod 8 is axially slidably connected in the second receiving channel 16.

[0044] Referring to Figures 3 and 6, the connecting rod 8 allows the traction plate 7 and the push plate 9 to be connected as a whole. When the traction plate 7 begins to move upward, it can drive the push plate 9 to move upward through the connecting rod 8. At the same time, the traction plate 7 can also drive the ejector rod 12 to move upward synchronously. Therefore, the movement of the ejector rod 12 and the push plate 9 is also synchronous, so that the bottom and top of the product 4 can be demolded simultaneously, thus protecting the product 4.

[0045] Example 2, referring to Figure 7, is the second embodiment of the present invention.

[0046] The top rod 12 has a U-shaped channel 121 and an exhaust port 122 inside. One end of the exhaust port 122 is connected to the inside of the U-shaped channel 121, and the other end of the exhaust port 122 is connected to the first receiving channel 15. Both ends of the bottom of the U-shaped channel 121 are fixedly connected to connecting hoses 123.

[0047] Referring to Figure 7, the two connecting hoses 123 pass through the lower mold 2 and connect to an external air supply device. A common air supply device is an air pump. The air pump introduces low-temperature gas through one of the connecting hoses 123 into the U-shaped channel 121. The low-temperature gas cools the lower mold 2 through the U-shaped channel 121. The low-temperature gas then returns to the air pump through the other connecting hose 123, thus achieving a low-temperature gas circulation. An additional heat exchanger needs to be installed between the air pump and the connecting hose 123 to maintain the gas temperature entering the connecting hose 123 at a consistently low level. Furthermore, a filter device should be added between the heat exchanger and the air pump to remove impurities from the low-temperature gas and prevent impurities from being blown onto the surface of the product, the cavity of the upper mold 1, or the core of the lower mold 2, thereby affecting the quality of subsequent products or damaging the upper mold 1 and the lower mold. The filter device is an air purification filter. When the ejector rod 12 lifts the product 4, the exhaust port 122 on the ejector rod 12 is exposed. At this time, the low-temperature gas can be discharged through the exhaust port 122 to the space between the upper mold 1 and the lower mold 2 to quickly cool the product 4 with residual heat, thereby making it easier for the staff to handle the product 4.

[0048] It should be noted that the air pump, heat exchanger, and air purification filter mentioned in this embodiment, as well as the method for maintaining the gas temperature at a low temperature, are all technical means well known to those skilled in the art, and their specific structures and principles will not be described in detail here.

[0049] Example 3, referring to Figures 8 to 12, is the third embodiment of the present invention.

[0050] The lower mold 2 is vertically rotatably connected to a rotating shaft 13. A limit protrusion 131 is fixedly connected to the rotating shaft 13. The traction plate 7 is slidably connected to the rotating shaft 13 along the axial direction. The lifting plate 6 has a through hole 61 and is slidably connected to the rotating shaft 13 through the through hole 61. The rotating shaft 13 has a spiral groove 24. A first guide block 14 is fixedly connected inside the through hole 61 and is slidably connected in the spiral groove 24.

[0051] Referring to Figure 8, when the lifting plate 6 moves upward, it can drive the first guide block 14 to move synchronously. At this time, the first guide block 14 can move in the spiral groove 24. Since the spiral groove 24 is spirally wound on the rotating shaft 13, when the first guide block 14 moves upward, it can drive the rotating shaft 13 to rotate itself, so that the side plate 3 can be driven to approach the upper mold 1 and the lower mold 2 through the subsequent structure.

[0052] It should be noted that a limiting protrusion 131 is provided on the rotating shaft 13. In the initial state, the bottom of the traction plate 7 is in contact with the top of the limiting protrusion 131, so that the lifting plate 6 and the traction plate 7 are not in contact at this time, thereby facilitating the purpose of the lifting plate 6 moving first and then driving the traction plate 7 to move.

[0053] Side plates 3 are horizontally slidably connected to the two opposite sides of the upper mold 1 and the lower mold 2. A protective plate 31 is vertically slidably connected to the side plate 3. A rack 18 is fixedly connected to the side plate 3. A drive gear 17 is coaxially fixedly connected to the rotating shaft 13. One end of the rack 18 is slidably connected in the lower mold 2 and meshes with the drive gear 17.

[0054] Please refer to Figures 8 and 9. When the rotating shaft 13 rotates, it can drive the drive gear 17 to rotate synchronously. When the drive gear 17 rotates, it can drive the rack 18 to move horizontally, so that the rack 18 can drive the protective plate 31 to approach the upper mold 1 and the lower mold 2 through the side plate 3.

[0055] A support plate 19 is fixedly connected to the side of the lower mold 2. The support plate 19 has a first inclined groove 191, a first horizontal groove 192, a vertical groove 193, a second horizontal groove 194, and a second inclined groove 195 connected end to end. The depths of the first inclined groove 191, the first horizontal groove 192, the vertical groove 193, and the second horizontal groove 194 are the same and greater than the depth of the second inclined groove 195. The difference in depth between the second inclined groove 195 and the second horizontal groove 194 is provided by a second inclined surface 196 for transition. A second guide block 20 is elastically and movably connected to the side of the support plate 19. The second guide block 20 is slidably connected in the first inclined groove 191.

[0056] Referring to Figures 11 and 12, as the side plate 3 moves the protective plate 31 closer to the upper mold 1 and the lower mold 2, the protective plate 31 can move the second guide block 20 synchronously. At this time, the second guide block 20 starts moving from the starting section of the first inclined groove 191. As the protective plate 31 moves horizontally, it will move the second guide block 20 along the first inclined groove 191. The second guide block 20 can enter the first horizontal groove 192 from the first inclined groove 191. When the protective plate 31 moves horizontally to its maximum stroke, it will just move the second guide block 20 to the end of the first horizontal groove 192. At this time, under the action of gravity, the protective plate 31 will move vertically downward on the side plate 3 until the protective plate 31 moves the second guide block 20 to the end of the first horizontal groove 192. The second guide block 20 moves along the vertical groove section 193 to its end. At this time, the vertical groove section 193 can support the protective plate 31 through the second guide block 20. The protective plate 31 can support the upper mold 1. When the worker manually takes the product 4 from the lower mold 2, the vertical protective plate 31 can prevent the upper mold 1 from falling suddenly and causing injury to the worker. When the side plate 3 drives the protective plate 31 to reset, the protective plate 31 can drive the second guide block 20 to move along the second horizontal groove section 194 first. After passing through the second inclined surface 196, the second guide block 20 moves axially elastically on the protective plate 31 and enters the second inclined groove section 195 from the second horizontal groove section 194 and gradually resets along the second inclined groove section 195.

[0057] It should be noted that a guide rail groove 32 is provided on the side plate 3, and a guide rail 33 is fixedly connected to the protective plate 31. The side plate 3 is slidably connected to the guide rail 33 through the guide rail groove 32. The cooperation between the guide rail groove 32 and the guide rail 33 allows the protective plate 31 to slide on the side plate 3. The projections of the guide rail groove 32 and the guide rail 33 on the horizontal plane are both T-shaped structures, which not only play a guiding role but also prevent the protective plate 31 from falling off the side plate 3.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A two-color injection mold for rapid deformation and demolding, comprising an upper mold (1) and a lower mold (2), said upper mold (1) and lower mold (2) for injection molding products (4), characterized in that, It also includes a cylinder (5), which is fixedly installed inside the lower mold (2). The output end of the cylinder (5) is fixedly connected to a lifting plate (6). A push rod (11) is vertically fixedly connected to the lifting plate (6). An inner pull plate (10) is horizontally slidably connected inside the mold core on the lower mold (2). The side wall of the inner pull plate (10) abuts against the inner wall of the product (4). The bottom of the inner pull plate (10) is set as a first inclined surface (101), and the top of the push rod (11) is set as... The sphere (111) is positioned and abuts against the first inclined surface (101). The lower mold (2) is vertically slidably connected to a traction plate (7). The top of the traction plate (7) is fixedly connected to a push plate (9). The inner pull plate (10) is horizontally elastically connected to the push plate (9). The bottom surface of the product (4) is in contact with the top surface of the push plate (9). The remaining part of the product (4) is in contact with the cavity of the upper mold (1) and the core of the lower mold (2).

2. The two-color injection mold for rapid deformation and demolding according to claim 1, characterized in that, A top rod (12) is vertically fixedly connected to the traction plate (7). A first receiving channel (15) is opened on the mold core of the lower mold (2). One end of the top rod (12) extends into the interior of the first receiving channel (15), and the top surface of the top rod (12) contacts the top inner wall of the product (4).

3. A two-color injection mold for rapid deformation and demolding according to claim 1, characterized in that, The lower mold (2) is provided with a second receiving channel (16), and a connecting rod (8) is fixedly connected between the traction plate (7) and the push plate (9). The connecting rod (8) is axially slidably connected in the second receiving channel (16).

4. A two-color injection mold for rapid deformation and demolding according to claim 2, characterized in that, The top rod (12) has a U-shaped channel (121) and an exhaust port (122) inside. One end of the exhaust port (122) is connected to the inside of the U-shaped channel (121), and the other end of the exhaust port (122) is connected to the first receiving channel (15). Both ends of the bottom of the U-shaped channel (121) are fixedly connected to a connecting hose (123).

5. A two-color injection mold for rapid deformation and demolding according to claim 1 or 3, characterized in that, A telescopic rod (91) and a spring (92) are fixedly connected between the inner pull plate (10) and the push plate (9), and the spring (92) is sleeved on the telescopic rod (91).

6. A two-color injection mold for rapid deformation and demolding according to claim 1, characterized in that, The lower mold (2) is vertically rotatably connected to a rotating shaft (13). A limiting protrusion (131) is fixedly connected to the rotating shaft (13). The traction plate (7) is slidably connected to the rotating shaft (13) along the axial direction. A through hole (61) is provided on the lifting plate (6). The lifting plate (6) is slidably connected to the rotating shaft (13) through the through hole (61). A spiral groove (24) is provided on the rotating shaft (13). A first guide block (14) is fixedly connected inside the through hole (61). The first guide block (14) is slidably connected in the spiral groove (24).

7. A two-color injection mold for rapid deformation and demolding according to claim 6, characterized in that, The upper mold (1) and the lower mold (2) are both horizontally slidably connected to two opposite sides of a side plate (3). A protective plate (31) is vertically slidably connected to the side plate (3). A rack (18) is fixedly connected to the side plate (3). A drive gear (17) is coaxially fixedly connected to the rotating shaft (13). One end of the rack (18) is slidably connected in the lower mold (2) and meshes with the drive gear (17).

8. A two-color injection mold for rapid deformation and demolding according to claim 7, characterized in that, The lower mold (2) is fixedly connected to a support plate (19) on its side. The support plate (19) has a first inclined groove segment (191), a first horizontal groove segment (192), a vertical groove segment (193), a second horizontal groove segment (194), and a second inclined groove segment (195) connected end to end. The first inclined groove segment (191), the first horizontal groove segment (192), the vertical groove segment (193), and the second horizontal groove segment (194) have the same depth and are greater than the depth of the second inclined groove segment (195). The difference in depth between the second inclined groove segment (195) and the second horizontal groove segment (194) is set as a second inclined surface (196) for transition. The support plate (19) is elastically connected to a second guide block (20) on its side. The second guide block (20) is slidably connected in the first inclined groove segment (191).

9. A two-color injection mold for rapid deformation and demolding according to claim 7 or 8, characterized in that, The side plate (3) has a guide rail groove (32), and the protective plate (31) is fixedly connected to a guide rail (33). The side plate (3) is slidably connected to the guide rail (33) through the guide rail groove (32).

10. A two-color injection mold for rapid deformation and demolding according to claim 1, characterized in that, An injection port (21) is fixedly installed on the upper mold (1), and the end of the injection port (21) is connected to the cavity of the upper mold (1). An upper guide post (22) is vertically fixedly installed on the upper mold (1), and a lower guide post (23) is vertically fixedly installed on the lower mold (2). The upper guide post (22) and the lower guide post (23) are axially engaged.

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