Cold circulation device of large glass fiber reinforced plastic mold

Abstract

The utility model provides a cold circulation device of a large glass fiber reinforced plastic mold, which is used for solving the problem that in the prior art, silica gel is extremely easy to solidify in a gel injection port, so that the gel injection port is blocked. The cold circulation device comprises an upper cooling piece and a lower cooling piece, the lower cooling piece comprises a lower flange, a pipeline is arranged on the lower flange, a water inlet and a water outlet which are communicated with the pipeline are formed in the side wall of the lower flange, the upper cooling piece comprises a cooling shaft arranged in the pipeline, a glue injection channel is formed in the cooling shaft in a penetrating mode, and a cooling groove is formed in the outer side wall of the cooling shaft. The cooling groove is matched with the inner side wall of the pipeline to form a cooling flow channel, the water inlet is communicated with the water outlet through the cooling flow channel, an upper flange is fixed to the top end of the cooling shaft and provided with a glue injection opening, and the glue injection opening is communicated with the mold through a glue injection channel. According to the utility model, the temperature of the glue injection channel is reduced, the curing time of silica gel at the glue injection channel and the glue injection port is prolonged, and the problem of silica gel curing blockage is avoided, so that the cleaning cost and the operation time of secondary glue injection are reduced.

Description

Technical Field

[0001] The utility model relates to the field of silicone injection molding, in particular to a cold circulation device for a large glass fiber reinforced plastic mold. Background Art

[0002] Silicone is a high-molecular-weight organosilicon material widely used in various fields due to its unique properties. Silicone has advantages such as good adsorption, high temperature resistance, corrosion resistance, and is non-toxic and odorless. Its softness and elasticity also provide great flexibility in manufacturing products of various shapes and sizes.

[0003] Existing silicone product manufacturing processes typically involve injecting liquid silicone into a fiberglass mold. Once the mold is filled, the mold is heated to accelerate the curing of the liquid silicone. However, during the curing process, the silicone inside the injection port also solidifies, causing blockage. This not only interrupts the continuous injection process and reduces overall production efficiency, but also requires extra care during subsequent cleanup to prevent solidified silicone from falling into the mold, increasing the complexity and difficulty of cleanup. Utility Model Content

[0004] The utility model provides a cold circulation device for a large glass fiber reinforced plastic mold, which solves the problem in the prior art that silica gel is easily solidified in the glue injection port, thereby causing blockage of the glue injection port.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] A cooling circulation device for a large glass fiber reinforced plastic mold includes an upper cooling member and a lower cooling member. The lower cooling member includes a lower flange, a pipe connected to the mold is passed through the lower flange, and a water inlet and a water outlet connected to the pipe are provided on the side wall of the lower flange. The upper cooling member includes a cooling shaft placed in the pipe, a glue injection channel is passed through the cooling shaft, the bottom end of the cooling shaft is sealed with the pipe, a cooling groove is provided on the outer wall of the cooling shaft, and the cooling groove cooperates with the inner wall of the pipe to form a cooling flow channel. The cooling flow channel connects the water inlet and the water outlet, and a cooling medium is introduced into the water inlet. An upper flange is fixed to the top end of the cooling shaft, and the upper flange is fixedly connected to the lower flange. The upper flange is provided with a glue injection port, and the glue injection port is connected to the mold through the glue injection channel.

[0007] Furthermore, the cooling trough is U-shaped, with the two ends of the U connected to the water inlet and outlet respectively. The U-shaped trough layout can realize a longer cooling channel within a limited space, allowing the cooling medium to flow in the channel for a longer time and absorb more heat before being discharged, thereby improving the utilization rate of the cooling medium.

[0008] Furthermore, the bottom end of the cooling shaft is sealed to the side wall of the pipeline via a dynamic seal ring. Since the dynamic seal ring has good sealing performance and durability, the maintenance and replacement work required due to leakage of the cooling medium can be greatly reduced.

[0009] Furthermore, a retaining ring is provided at the bottom end of the pipe, and the retaining ring is sealed and connected to the bottom end of the cooling shaft through a first sealing ring. Effective sealing reduces the loss of cooling medium and saves energy and material costs.

[0010] Furthermore, the lower flange is provided with a plurality of screw holes, and the upper flange is provided with connection holes corresponding to the screw holes. Bolts are passed through the connection holes and screwed into the screw holes. A second sealing ring is provided between the upper and lower flanges. The use of the second sealing ring provides an effective seal, further reducing the risk of cooling medium leakage and protecting the working environment and equipment.

[0011] Furthermore, the water inlet and outlet are both connected to a water tank via a coolant pipe. A cooling medium is disposed within the water tank, and a water supply pump is provided on the coolant pipe connected to the water inlet. A cooling device is provided outside the water tank. The circulating coolant can continuously provide a low temperature, ensuring a stable temperature within the cooling channel, thereby improving cooling efficiency.

[0012] Furthermore, the water inlet and the water outlet are both connected to the coolant pipe via quick-connect connectors, which makes the layout and configuration of the cooling system more flexible.

[0013] Furthermore, the lower flange and the upper flange are provided with corresponding marks. The use of the marks ensures that the upper cooling member and the lower cooling member are accurately aligned during assembly, thereby improving the assembly quality of the entire cooling system.

[0014] The beneficial effects that this technical solution can produce.

[0015] This new design reduces the temperature of the injection channel through the cooling channel, prolonging the curing time of the silicone in the injection channel and injection port, thus avoiding silicone curing blockage. This reduces cleaning costs and the time required for secondary injection, as well as silicone waste and energy consumption, resulting in a minimal impact on the environment. The coordinated operation of the upper and lower cooling elements simplifies the processing of the cooling channel and facilitates the replacement of the cooling shaft, facilitating rapid equipment maintenance and component replacement, reducing downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a three-dimensional exploded view of the utility model;

[0019] Figure 3 It is a cross-sectional view of the utility model;

[0020] Figure 4 This is an expanded view of the side wall of the cooling shaft of the present invention;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the utility model connected to the water tank.

[0022] Among them: 1. Upper cooling part, 2. Lower cooling part, 3. Lower flange, 4. Pipe, 5. Water inlet, 6. Water outlet, 7. Cooling shaft, 8. Glue injection channel, 9. Cooling trough, 10. Upper flange, 11. Glue injection port, 12. Dynamic sealing ring, 13. Retaining ring, 14. First sealing ring, 15. Screw hole, 16. Connecting hole, 17. Bolt, 18. Second sealing ring, 19. Coolant pipe, 20. Water tank, 21. Cooling device, 22. Quick connector, 23. Marking. DETAILED DESCRIPTION

[0023] 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 embodiments described 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.

[0024] like Figure 1-4As shown, the embodiment of the utility model provides a cold circulation device for a large glass fiber reinforced plastic mold, comprising an upper cooling member 1 and a lower cooling member 2, the lower cooling member 2 comprising a lower flange 3, a pipe 4 connected to the mold is provided on the lower flange 3, a water inlet 5 and a water outlet 6 connected to the pipe 4 are provided on the side wall of the lower flange 3, the upper cooling member 1 comprises a cooling shaft 7 placed in the pipe 4, a glue injection channel 8 is provided on the cooling shaft 7, the bottom end of the cooling shaft 7 is sealedly connected to the pipe 4, a cooling groove 9 is provided on the outer wall of the cooling shaft 7, the cooling groove 9 cooperates with the inner wall of the pipe 4 to form a cooling flow channel, the cooling flow channel connects the water inlet 5 with the water outlet 6, a cooling medium is introduced into the water inlet 5, an upper flange 10 is fixed to the top of the cooling shaft 7, the upper flange 10 is fixedly connected to the lower flange 3, the upper flange 10 is provided with a glue injection port 11, and the glue injection port 11 is connected to the mold through the glue injection channel 8. The cooling medium can be liquid or gaseous, preferably a liquid cooling medium, and the temperature of the cooling medium is lower than the curing temperature of the silicone. The cooling medium can be existing liquid water or coolant, etc. Using liquid water or environmentally friendly coolant as the cooling medium is not only low in cost and easy to obtain, but also meets environmental protection requirements.

[0025] During use, the cooling shaft 7 of the upper cooling member 1 is inserted into the pipe 4, and the upper cooling member 1 is fixed to the lower cooling member 2 through the cooperation of the upper flange 10 and the lower flange 3. When the mold injection is completed, the cooling medium is injected into the water inlet 5. The cooling medium passes through the water inlet 5, the cooling channel and the water outlet 6 in sequence. The flow of the cooling medium along the cooling channel can reduce the temperature of the injection channel 8, and the reduction in the temperature of the injection channel 8 can extend the curing time of the silicone in the injection channel 8 and the injection port 11, thereby avoiding the effect of silicone curing blockage, thereby reducing the cleaning cost, and when the glue is injected again, the silicone remaining in the injection channel 8 will be directly used as raw material for injection molding, which can save the operation time of the second injection and prevent the waste of raw materials, and improve the overall production efficiency. The split cooperation of the upper cooling member 1 and the lower cooling member 2 can facilitate the processing and production of the cooling channel, and can facilitate the replacement of the upper cooling member 1 or the lower cooling member 2, reducing maintenance time and cost.

[0026] like Figure 2 、 4 As shown, the cooling groove 9 is U-shaped, with the two ends of the U being connected to the water inlet 5 and the water outlet 6, respectively. The U-shaped cooling groove 9 extends the length of the cooling channel, correspondingly increasing the contact area and contact time between the cooling medium and the cooling shaft 7, thereby improving the heat exchange efficiency. The cooling groove 9 can also be formed by connecting multiple U-shaped grooves to ensure that all parts of the cooling shaft 7 are evenly cooled, avoiding the problem of local overheating or overcooling.

[0027] like Figure 2-4As shown, the bottom end of the cooling shaft 7 is sealed to the side wall of the pipe 4 via a dynamic seal 12. This dynamic seal 12 is conventional. Its use ensures a sealed connection between the cooling shaft 7 and the pipe 4, effectively preventing cooling medium from leaking into the mold and contaminating or impacting the injection molded product. The design of the dynamic seal 12 allows the cooling shaft 7 to be moved or adjusted within a certain range, allowing the cooling system to adapt to different operating conditions and mold requirements.

[0028] like Figure 3 As shown, a retaining ring 13 is provided at the bottom end of the pipe 4, and the retaining ring 13 is sealed to the bottom end of the cooling shaft 7 through a first sealing ring 14. The retaining ring 13 provides an additional sealing layer to ensure the sealing performance of the connection between the cooling shaft 7 and the pipe 4. The effective sealing reduces the loss of the cooling medium and saves energy and material costs. Effective sealing can not only prevent the cooling medium from leaking into the interior of the mold, but also prevent liquid silicone from entering the cooling channel and causing blockage of the cooling channel. The provision of the first sealing ring 14 on the retaining ring 13 simplifies the installation and processing of the cooling shaft 7, making replacement and maintenance work faster and more convenient, and even if there is a certain processing error in the cooling shaft 7, it can be compensated by the elastic deformation of the sealing ring to ensure the sealing effect.

[0029] like Figure 1 、 2 As shown, the lower flange 3 is provided with a plurality of screw holes 15, and the upper flange 10 is provided with connection holes 16 corresponding one-to-one with the screw holes 15. Bolts 17 are passed through the connection holes 16 and screwed into the screw holes 15. The upper flange 10 and the lower flange 3 are sealed by a second sealing ring 18. The provision of the screw holes facilitates the fixed connection between the upper flange 10 and the lower flange 3. The provision of the second sealing ring 18 prevents leakage of the cooling medium between the upper flange 10 and the lower flange 3. The second sealing ring 18 also automatically adjusts to the unevenness of the flange surface during the tightening of the bolts 17 due to its elastic deformation ability, thereby achieving a more uniform sealing effect. The one-to-one correspondence between the screw holes and the connection holes 16 also provides a certain limiting effect. The multiple screw holes 15 and the corresponding connection holes 16 provide evenly distributed fixing points, ensuring a stable connection between the upper flange 10 and the lower flange 3, improving the stability of the connection between the upper flange 10 and the lower flange 3, and reducing displacement caused by vibration or pressure changes.

[0030] like Figure 5As shown, the water inlet 5 and the water outlet 6 are both connected to the water tank 20 via a coolant pipe 19. A cooling medium is provided in the water tank 20. A water supply pump is provided on the coolant pipe 19 connected to the water inlet 5. A cooling device 21 is provided outside the water tank 20. During use, the water supply pump draws the cooling medium from the water tank 20 and delivers it to the water inlet 5 via the coolant pipe 19. After the cooling medium passes through the cooling channel and the water outlet 6, it flows back to the water tank 20 via the coolant pipe 19, allowing the cooling medium to circulate. By recycling the cooling medium, the demand for fresh cooling medium is reduced, saving water resources or coolant consumption. The cooling device 21 is a prior art, such as an electric fan to cool the water tank 20. The cooling device 21 can more effectively control the temperature of the cooling medium, ensuring that it is always lower than the temperature required for the curing of the silicone. The temperature of the water tank 20 can also be adjusted according to actual needs to avoid overcooling of the cooling medium, thereby reducing energy consumption.

[0031] like Figure 1 、 5 As shown, the water inlet 5 and water outlet 6 are both connected to the coolant pipe 19 via quick-connect connectors 22. These quick-connect connectors 22 are conventional. They make removal and replacement of the lower cooling element 2 faster and more convenient, significantly improving maintenance efficiency and reducing equipment downtime. The quick-connect connectors 22 can be connected and disconnected without tools, simplifying the operation process and making inspection and cleaning of the water inlet 5 and water outlet 6 more convenient.

[0032] like Figure 1 As shown, the lower flange 3 and the upper flange 10 are provided with corresponding marks 23. The marks 23 cooperate with the positioning characteristics of the screw holes to provide a positioning function, ensuring that the cooling groove 9 is accurately aligned with the water inlet 5 and the water outlet 6, reducing errors caused by improper assembly and reducing production preparation time, thereby improving overall production efficiency and preventing the side walls of the cooling shaft 7 from blocking the water inlet 5 and the water outlet 6, causing blockage of the cooling channel and cooling failure or uneven heating and cooling.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cooling circulation device for large glass fiber reinforced plastic molds, characterized by: The invention comprises an upper cooling member (1) and a lower cooling member (2), wherein the lower cooling member (2) comprises a lower flange (3), a pipe (4) connected to the mold is passed through the lower flange (3), a water inlet (5) and a water outlet (6) communicated with the pipe (4) are provided on the side wall of the lower flange (3), the upper cooling member (1) comprises a cooling shaft (7) placed in the pipe (4), a glue injection channel (8) is passed through the cooling shaft (7), the bottom end of the cooling shaft (7) is sealed and connected to the pipe (4), and the cooling shaft The outer wall of (7) is provided with a cooling groove (9), and the cooling groove (9) cooperates with the inner wall of the pipe (4) to form a cooling flow channel. The cooling flow channel connects the water inlet (5) with the water outlet (6), and the water inlet (5) is fed with a cooling medium. The top end of the cooling shaft (7) is fixed with an upper flange (10), and the upper flange (10) is fixedly connected to the lower flange (3). The upper flange (10) is provided with a glue injection port (11), and the glue injection port (11) is connected to the mold through the glue injection channel (8).

2. The cooling circulation device for a large glass fiber reinforced plastic mold according to claim 1, characterized in that: The cooling trough (9) is U-shaped, and the two ends of the U are respectively connected to the water inlet (5) and the water outlet (6).

3. The cooling circulation device for a large glass fiber reinforced plastic mold according to claim 1, characterized in that: The bottom end of the cooling shaft (7) is sealed and connected to the side wall of the pipeline (4) via a dynamic sealing ring (12).

4. The cooling circulation device for a large glass fiber reinforced plastic mold according to claim 1, characterized in that: The bottom end of the pipeline (4) is provided with a retaining ring (13), and the retaining ring (13) is sealed and connected to the bottom end of the cooling shaft (7) through a first sealing ring (14).

5. The cooling circulation device for a large glass fiber reinforced plastic mold according to claim 1, characterized in that: The lower flange (3) is provided with a plurality of screw holes (15), the upper flange (10) is provided with connection holes (16) corresponding to the screw holes (15), bolts (17) are passed through the connection holes (16), the bolts (17) are screwed to the screw holes (15), and the upper flange (10) and the lower flange (3) are sealed by a second sealing ring (18).

6. The cooling circulation device for a large glass fiber reinforced plastic mold according to claim 1, characterized in that: The water inlet (5) and the water outlet (6) are both connected to the water tank (20) through a cooling liquid pipe (19), a cooling medium is arranged in the water tank (20), a water supply pump is arranged on the cooling liquid pipe (19) connected to the water inlet (5), and a cooling device (21) is arranged outside the water tank (20).

7. A cooling circulation device for a large glass fiber reinforced plastic mold according to claim 6, characterized in that: The water inlet (5) and the water outlet (6) are both connected to the coolant pipe (19) via a quick-connect connector (22).

8. The cooling circulation device for a large glass fiber reinforced plastic mold according to claim 5, characterized in that: The lower flange (3) and the upper flange (10) are provided with corresponding markings (23).

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