Injection molding apparatus with rapid cooling

By designing the guide rod and ejector assembly, and improving the cooling assembly, the problems of uneven cooling efficiency and product removal difficulties in injection molding equipment were solved, achieving rapid cooling and smooth demolding.

CN224489948UActive Publication Date: 2026-07-14NANJING FUGUIXING INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING FUGUIXING INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-08-04
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing injection molding equipment, the cooling water in the front section absorbs heat during the cooling process, which reduces the cooling effect in the back section, affecting the overall cooling efficiency, and the product is prone to getting stuck in the mold and difficult to remove.

Method used

The sliding plate is moved by a guide rod. Combined with the design of the ejection assembly and cooling assembly, the guide rod stabilizes the movement of the mold, the ejection assembly ensures the smooth release of the product, and the cooling assembly reduces the temperature by introducing cooling water through the side of the support pipe, thereby improving the cooling efficiency of the later stage.

Benefits of technology

It enables rapid cooling and smooth removal of molded products, improves the overall cooling efficiency of injection molding equipment, prevents products from jamming, and ensures production continuity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of injection molding equipment of quick cooling forming, belong to injection molding technical field, including two support plates, the top fixedly connected with mounting plate one in left side support plate, two electric push rods are installed on the mounting plate one, the telescopic end of electric push rod is fixedly connected with sliding plate, one end of each connecting rod is fixedly connected on the sliding plate, one end of two connecting rods is fixedly connected with limit block. The utility model solves the problem that the cooling water has absorbed heat when passing through the front section, reducing the cooling effect of the rear section, affecting the cooling of the rear section, and the product may be stuck on the mold when falling off.
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Description

Technical Field

[0001] This utility model belongs to the field of injection molding technology, specifically relating to an injection molding device with fast cooling and molding. Background Technology

[0002] Injection molding is a method of shaping industrial products. Products are typically made using rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression molding and die casting. An injection molding machine (or injection molding machine for short) is the main molding equipment used to make various shapes of plastic products from thermoplastic or thermosetting materials using plastic molds.

[0003] Existing injection molded products are produced using injection molds, and cooling water is generally used to accelerate cooling. However, the cooling water absorbs heat as it passes through the initial stage, reducing its cooling effect in the later stages and affecting the cooling of the later stages. Furthermore, the product may get stuck in the mold when it is detached. Therefore, an injection molding equipment with fast cooling and molding is proposed. Summary of the Invention

[0004] This invention provides an injection molding equipment with fast cooling and molding. Its purpose is to solve the problem that the cooling water absorbs heat when passing through the front section, which reduces the cooling effect of the rear section and affects the cooling of the rear section. It also addresses the problem that the product may get stuck on the mold when it is detached.

[0005] This utility model embodiment provides an injection molding equipment with fast cooling and molding, including two support plates. A mounting plate is fixedly connected to the top of the left support plate, and two electric push rods are mounted on the mounting plate. A sliding plate is fixedly connected to the telescopic end of each electric push rod. One end of each connecting rod is fixedly connected to the sliding plate, and a limit block is fixedly connected to one end of each connecting rod. A mold is slidably connected to the connecting rods. An ejection assembly is installed between the mold and the sliding plate. A second mounting plate is fixedly connected to the top of the right support plate, and a second mold is mounted on the mounting plate. An injection port is opened on the right side of the mold, and the injection port is connected to a raw material injection pipe installed on the right side of the mounting plate. An ejection assembly is provided on the top of the mold. Two vertically distributed cooling assemblies are connected to both the mold and the mounting plate.

[0006] Furthermore, guide rods are installed at the four corners of the mounting plate one, and a sliding groove matching the guide rod is provided on the mold one. The end of the guide rod away from the mounting plate one is connected to the mold two.

[0007] By adopting the above technical solution, the guide rod can be used to assist the sliding plate and the mold in stable movement.

[0008] Furthermore, the ejection assembly includes an ejector rod installed on the right side of the mounting plate, a contact plate is provided on the right side of the sliding plate, and ejector rods are fixedly connected to both the upper and lower sides of the right wall of the contact plate. The other end of the ejector rod extends into the mold, and a spring is installed on the outer side of the ejector rod.

[0009] By adopting the above technical solution, after injection molding is completed, the electric push rod is activated to drive the sliding plate to move to the left. Then the sliding plate drives the connecting rod and then the limiting block. The limiting block restricts the mold and can drive the mold to move to the left. After that, the mold and the sliding plate move to the left together. Then the contact plate will contact the ejector rod, which can drive the contact plate to move and compress the spring, allowing the ejector rod to move and protrude out of the mold, pushing out the injection molded product that is still on the mold after cooling and falling off.

[0010] Furthermore, the mold has an ejection groove that matches the ejector rod, one end of the spring is connected to the contact plate, and the other end of the spring is connected to the mold.

[0011] By adopting the above technical solution, the ejector slot provides space for the ejector rod to move, and the spring allows the ejector rod to return to its original position.

[0012] Furthermore, the ejection assembly two includes a pull rod fixed to the top of the mold one, a right-angle rod movably connected to the pull rod, a ring fixedly connected to the bottom end of the right-angle rod, ejection rod two fixedly connected to both the upper and lower sides of the ring, a spring two installed at the end of the right-angle rod into which the pull rod extends, a limit ring one installed on the right-angle rod and located on the right side of the mounting plate two, and a limit ring two installed on the right-angle rod and located on the left side of the mounting plate two.

[0013] By adopting the above technical solution, when mold one moves, it will drive the pull rod and the right-angle rod to move to the left, and then drive the ejector rod two to move to the left, which can eject the injection molded product and prevent it from being left in mold two and not being able to fall off automatically. After following mold one to move a certain distance, the limiting ring one restricts the right-angle rod. At this time, the right-angle rod cannot move to the left. Meanwhile, mold one and the pull rod then move to the left, allowing the near ends of ejector rod one and ejector rod two to separate, providing space for the injection molded product to fall off.

[0014] Furthermore, the mold second is provided with an ejection groove second that matches the ejection rod second, and the right-angle rod is slidably connected to the top of the mounting plate second.

[0015] By adopting the above technical solution, the ejector slot 2 provides space for the movement of ejector rod 2.

[0016] Furthermore, the cooling assembly includes cooling water inlet pipes installed in front of mold one and mold two. The cooling water inlet pipes are connected to several cooling cavities in mold one and mold two. Two branch pipes are connected to the left side of mold one and the right side of mounting plate two. The branch pipes are connected to a main channel. The main channel is opened in mold one and mold two. The main channel is connected to several auxiliary channels. Each auxiliary channel is connected to a corresponding cooling channel. The rear end of each cooling channel is connected to a discharge pipe.

[0017] By adopting the above technical solution, cooling components are used to introduce cooling water through a cooling water inlet pipe. The cooling water then passes through a cooling chamber for cooling. However, the cooling water absorbs heat as it passes through the front section, reducing the cooling effect in the rear section and affecting efficiency. Therefore, with the help of the branch pipe, cooling water is introduced from the side, which lowers the temperature of the cooling water, improves the cooling effect in the rear section, and accelerates the cooling efficiency. Finally, the cooling water is discharged from the outlet pipe.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. In this utility model, cooling water is introduced through a cooling component and a cooling water inlet pipe, and then cooled through a cooling chamber. However, the cooling water absorbs heat when it passes through the first section, which reduces the cooling effect of the second section and affects efficiency. Therefore, with the help of the branch pipe, cooling water is introduced from the side, which lowers the temperature of the cooling water, improves the cooling effect of the second section, and accelerates the cooling efficiency.

[0020] 2. This utility model, through the cooperation of ejection component one and ejection component two, simultaneously works mold one and mold two, assisting in the removal of the product and preventing the injection molded product from remaining on mold one and mold two and being difficult to remove.

[0021] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the pipe at the branch end in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of the cooling cavity according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the ring structure according to an embodiment of the present utility model;

[0028] Reference numerals: 1. Support plate; 2. Mounting plate one; 3. Electric actuator; 4. Sliding plate; 5. Connecting rod; 6. Limiting block; 7. Mold one; 8. Mounting plate two; 9. Raw material injection pipe; 101. Ejector rod; 102. Contact plate; 103. Ejector rod one; 104. Spring one; 11. Inlet; 121. Pull rod; 122. Right angle rod; 123. Ring; 124. Ejector rod two; 125. Spring two; 126. Limiting ring one; 127. Limiting ring two; 13. Mold two; 14. Guide rod; 151. Cooling water inlet pipe; 152. Cooling cavity; 153. Support pipe; 154. Collection cavity; 155. Auxiliary cavity. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] Reference Figures 1-5 This utility model embodiment proposes an injection molding equipment with fast cooling and molding, including two support plates 1. A mounting plate 1 2 is fixedly connected to the top of the left support plate 1. Two electric push rods 3 are mounted on the mounting plate 1 2. A sliding plate 4 is fixedly connected to the telescopic end of the electric push rods 3. One end of each connecting rod 5 is fixedly connected to the sliding plate 4. A limit block 6 is fixedly connected to one end of each connecting rod 5. A mold 1 7 is slidably connected to the connecting rod 5. An ejection assembly 1 is installed between the mold 1 7 and the sliding plate 4. A mounting plate 2 8 is fixedly connected to the top of the right support plate 1. A mold 2 13 is mounted on the mounting plate 2 8. An injection port 11 is opened on the right side of the mold 2 13. The injection port 11 is connected to a raw material injection pipe 9. The raw material injection pipe 9 is installed on the right side of the mounting plate 2 8. An ejection assembly 2 is provided on the top of the mold 1 7. Two cooling assemblies distributed vertically are connected to both the mold 1 7 and the mounting plate 2 8.

[0031] Guide rods 14 are installed at the four corners of the mounting plate 12. The mold 17 has a sliding groove that matches the guide rods 14. The end of the guide rod 14 away from the mounting plate 12 is connected to the mold 2 13. The guide rods 14 can be used to assist the sliding plate 4 and the mold 17 to move stably.

[0032] Ejection assembly 1 includes an ejector rod 101 mounted on the right side of mounting plate 2. A contact plate 102 is provided on the right side of sliding plate 4. Ejector rods 103 are fixedly connected to the upper and lower sides of the right wall of contact plate 102. The other end of ejector rod 103 extends into mold 7. A spring 104 is installed on the outside of ejector rod 103. After injection molding is completed, the electric push rod 3 is activated to drive sliding plate 4 to move to the left. Then sliding plate 4 drives connecting rod 5 and then limit block 6. Limit block 6 restricts mold 7 and can drive mold 7 to move to the left. After that, mold 7 and sliding plate 4 move to the left together. Then contact plate 102 will contact ejector rod 101, which can drive contact plate 102 to move and compress spring 104, so that ejector rod 103 moves out of mold 7 and pushes out the injection molded product that is still on mold 7 after cooling.

[0033] The mold 7 has an ejection groove that matches the ejector rod 103. One end of the spring 104 is connected to the contact plate 102, and the other end of the spring 104 is connected to the mold 7. The ejection groove provides space for the ejector rod 103 to move, and the spring 104 can reset the ejector rod 103.

[0034] Ejection assembly two includes a pull rod 121 fixed to the top of mold one 7. A right-angle rod 122 is movably connected to the pull rod 121. A ring 123 is fixedly connected to the bottom end of the right-angle rod 122. Ejection rods two 124 are fixedly connected to both the upper and lower sides of the ring 123. A spring two 125 is installed at the end of the right-angle rod 122 into which the pull rod 121 extends. A limit ring one 126 is installed on the right-angle rod 122 on the right side of the mounting plate two 8, and a limit ring two 127 is installed on the right-angle rod 122 on the left side of the mounting plate two 8. When moving, it will drive the pull rod 121 and the right-angle rod 122 to move to the left, and then drive the ejector rod 124 to move to the left, which can eject the injection molded product and prevent it from being stuck in the mold 13 and unable to fall off automatically. After moving a certain distance with the mold 7, the limiting ring 126 restricts the right-angle rod 122. At this time, the right-angle rod 122 cannot move to the left. Then the mold 7 and the pull rod 121 move to the left, allowing the ejector rod 103 to separate from the near end of the ejector rod 124, providing space for the injection molded product to fall off.

[0035] The mold 2 13 has an ejection groove 2 that matches the ejection rod 2 124. The right-angle rod 122 is slidably connected to the top of the mounting plate 2 8, and the ejection groove 2 provides space for the movement of the ejection rod 2 124.

[0036] The cooling assembly includes a cooling water inlet pipe 151 installed in front of mold 7 and mold 2 13. The cooling water inlet pipe 151 is connected to several cooling cavities 152 located in mold 7 and mold 2 13. Two branch pipes 153 are connected to the left side of mold 7 and the right side of mounting plate 2 8. Each branch pipe 153 is connected to a main channel 154. The main channel 154 is located in mold 7 and mold 2 13. Each main channel 154 is connected to several auxiliary channels 155. Each auxiliary channel 155... All are connected to the corresponding cooling chamber 152. The rear end of the cooling chamber 152 is connected to the discharge pipe. Using the cooling components, cooling water is introduced through the cooling water inlet pipe 151 and then cooled through the cooling chamber 152. However, when the cooling water passes through the front section, it has already absorbed heat, which reduces the cooling effect of the rear section and affects efficiency. Therefore, under the action of the branch pipe 153, cooling water is introduced from the side, which lowers the temperature of the cooling water, improves the cooling effect of the rear section, and speeds up the cooling efficiency. Then, it is discharged from the discharge pipe.

[0037] The specific implementation method is as follows: During use, mold 1 7 and mold 2 13 are closed. Then, injection molding material is fed into the mold through the material injection pipe 9 and injected into the space between mold 1 7 and mold 2 13 through the injection port 11. After injection, cooling water is introduced through the cooling water inlet pipe 151 and then cooled through the cooling chamber 152. Second-stage cooling water is introduced from the side through the branch pipe 153, merging with the cooling water in the auxiliary chamber 155 and the corresponding cooling chamber 152. This cools the latter half of the cooling chamber 152, ensuring a low temperature and improving cooling efficiency. The side cooling water, introduced through the branch pipe 153, lowers the temperature, enhancing the cooling effect of the latter part and accelerating cooling efficiency. The cooled water is then discharged through the outlet pipe. After cooling is complete, the electric actuator 3 is activated, moving the sliding plate 4 to the left. The sliding plate 4 then moves the connecting rod 5, which in turn moves the limiting block 6. 6 restricts mold 7, causing it to move to the left. Mold 7 and sliding plate 4 then move to the left together. Contact plate 102 then contacts ejector rod 101, causing it to move and compress spring 104, allowing ejector rod 103 to move out of mold 7. Simultaneously, mold 7 moves pull rod 121 and right-angle rod 122 to the left, then ejector rod 124 to the left, ejecting the molded product and preventing it from remaining in mold 13 and failing to detach automatically. After moving a certain distance with mold 7, limit ring 126 restricts right-angle rod 122, preventing it from moving to the left. Meanwhile, mold 7 and pull rod 121 move to the left, separating the near ends of ejector rod 103 and ejector rod 124, providing space for the molded product to fall and preventing it from remaining on mold 7 and mold 13 and failing to detach easily.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine with rapid cooling and molding, comprising two support plates (1), characterized in that, A mounting plate (2) is fixedly connected to the top of the support plate (1) on the left side. Two electric push rods (3) are mounted on the mounting plate (2). A sliding plate (4) is fixedly connected to the telescopic end of the electric push rods (3). One end of each connecting rod (5) of the chain is fixedly connected to the sliding plate (4). A limit block (6) is fixedly connected to one end of each connecting rod (5). A mold (7) is slidably connected to the connecting rod (5). An ejection assembly is installed between the mold (7) and the sliding plate (4). The top of the support plate (1) located on the right side is fixedly connected to the second mounting plate (8). The second mold (13) is installed on the second mounting plate (8). The second mold (13) has an injection port (11) on its right side. The injection port (11) is connected to a raw material injection pipe (9). The raw material injection pipe (9) is installed on the right side of the second mounting plate (8). The top of the first mold (7) is provided with an ejection component 2. Both the first mold (7) and the second mounting plate (8) are connected to two cooling components distributed vertically.

2. The injection molding equipment with fast cooling and molding according to claim 1, characterized in that: Guide rods (14) are installed at the four corners of the mounting plate 1 (2). The mold 1 (7) has a sliding groove that matches the guide rods (14). The end of the guide rod (14) away from the mounting plate 1 (2) is connected to the mold 2 (13).

3. The injection molding equipment with fast cooling and molding according to claim 2, characterized in that: The ejection assembly includes an ejector rod (101) installed on the right side of the mounting plate (2). A contact plate (102) is provided on the right side of the sliding plate (4). An ejector rod (103) is fixedly connected to both the upper and lower sides of the right wall of the contact plate (102). The other end of the ejector rod (103) extends into the mold (7). A spring (104) is installed on the outside of the ejector rod (103).

4. The injection molding equipment with fast cooling and molding according to claim 3, characterized in that: The mold (7) is provided with an ejection groove that matches the ejection rod (103). One end of the spring (104) is connected to the contact plate (102), and the other end of the spring (104) is connected to the mold (7).

5. The injection molding equipment with fast cooling and molding according to claim 4, characterized in that: The ejection assembly 2 includes a pull rod (121) fixed to the top of the mold 1 (7). A right-angle rod (122) is movably connected to the pull rod (121). A ring (123) is fixedly connected to the bottom end of the right-angle rod (122). Ejection rod 2 (124) is fixedly connected to both the upper and lower sides of the ring (123). A spring 2 (125) is installed at one end of the right-angle rod (122) into which the pull rod (121) protrudes. A limit ring 1 (126) is installed on the right-angle rod (122) and located on the right side of the mounting plate 2 (8). A limit ring 2 (127) is installed on the right-angle rod (122) and located on the left side of the mounting plate 2 (8).

6. The injection molding equipment with fast cooling and molding according to claim 5, characterized in that: The mold 2 (13) is provided with an ejection groove 2 that matches the ejection rod 2 (124), and the right angle rod (122) is slidably connected to the top of the mounting plate 2 (8).

7. The injection molding equipment with fast cooling and molding according to claim 4, characterized in that: The cooling assembly includes a cooling water inlet pipe (151) installed in front of mold one (7) and mold two (13). The cooling water inlet pipe (151) is connected to several cooling cavities (152) in mold one (7) and mold two (13). Two branch pipes (153) are connected to the left side of mold one (7) and the right side of mounting plate two (8). The branch pipes (153) are connected to a main channel (154). The main channel (154) is opened in mold one (7) and mold two (13). The main channel (154) is connected to several auxiliary channels (155). Each auxiliary channel (155) is connected to a corresponding cooling channel (152). The rear end of the cooling channel (152) is connected to a discharge pipe.