Temperature control channel structure of injection mold

Abstract

The temperature control channel structure comprises a fixed mold, a temperature control assembly is installed in an inner cavity of the fixed mold, a controller is installed on the front wall of the fixed mold, heat dissipation assemblies are installed on the outer side walls of the fixed mold, positioning rods are fixedly installed at the four corners of the top wall of the fixed mold, and a movable mold is installed on the top wall of the fixed mold. Sliding openings are formed in the positions, corresponding to the outer walls of the positioning rods, of the top wall of the movable mold. According to the temperature control channel structure of the injection mold, through mutual cooperation of all parts in the heat dissipation assembly and the temperature control assembly, when an injection product is cooled, due to the fact that a first pipeline and a second pipeline are designed during wrapping, all positions of the internal injection product can keep the same cooling speed during cooling; the situation that the cooling temperature is not uniform can be prevented, the good working efficiency is achieved when the temperature of the injection molding product is controlled, and the production work of the product is improved to a greater extent.

Description

Technical Field

[0001] This utility model relates to the field of mold temperature control technology, specifically a temperature control channel structure for injection molds. Background Technology

[0002] Injection molds are tools used to produce plastic products. By injecting molten plastic into the mold cavity, it cools and solidifies to form a plastic product of the desired shape and size. Injection molds are widely used in industries such as electronics, automobiles, home appliances, and daily necessities to manufacture plastic parts, shells, toys, electronic components, etc.

[0003] Patent CN220373846U discloses a temperature-controlled injection mold. The temperature control module includes a heat-conducting plate installed on the inner wall of the mold body, a temperature sensor installed in the inner cavity of the mold body and extending into the heat-conducting plate, a first serpentine tube fixed to the bottom end of the heat-conducting plate, a shell fixed to the outer side of the mold body, a second serpentine tube fixed to the inner wall of the shell, a fixing plate symmetrically fixed to the inner wall of the shell, a plurality of semiconductor cooling chips arranged in an array on the fixing plate, a pump installed on the outer side of the shell and communicating with the end of the second serpentine tube, and a controller installed on the outer side of the shell. The heat-conducting plate is made of thermally conductive material and is used to contact the injection molded product and exchange heat, absorbing the heat on the injection molded product, while ensuring uniform heat transfer and exchange. This temperature-controlled injection mold has the advantages of temperature control and strong practicality.

[0004] The above-mentioned device has certain shortcomings when in use: when cooling the heat-conducting plate and injection-molded product through semiconductor cooling chip and cooling water, the bottom of the injection-molded product is in contact with the heat-conducting plate, so heat is lost quickly during cooling. However, the top of the product is far from the heat-conducting plate and requires a longer cooling time. Therefore, it takes a longer time for the overall temperature of the product to drop to a uniform level, and the efficiency in temperature control is not high.

[0005] Therefore, this utility model provides a temperature control channel structure for injection molds to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a temperature control channel structure for injection molds, thus solving the aforementioned problems.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a temperature control channel structure for an injection mold, including a fixed mold, a temperature control component installed in the inner cavity of the fixed mold, a controller installed on the front wall of the fixed mold, heat dissipation components installed on the outer walls of the fixed mold, positioning rods fixedly installed at the four corners of the top wall of the fixed mold, a moving mold installed on the top wall of the fixed mold, and sliding openings opened on the top wall of the moving mold and at positions corresponding to the outer walls of the positioning rods;

[0008] The temperature control assembly includes a frame heat-conducting plate, a supporting heat-conducting plate fixedly installed on the bottom wall of the frame heat-conducting plate, a cavity opened inside the fixed mold, the inner wall of the cavity fixedly connected to the top of the outer wall of the frame heat-conducting plate, a sealing groove opened on the top wall of the fixed mold, a sealing ring fixedly installed on the bottom wall of the moving mold, pipes one evenly installed from top to bottom on the outer wall of the frame heat-conducting plate, several pipes one connected to the same connecting pipe at the rear of the outer wall of several pipes one, several pipes two evenly connected to the bottom of the lowest pipe one, several pipes two, pipes one and connecting pipe are all interconnected, and a temperature sensor is installed on the front wall of the fixed mold.

[0009] Through the above technical solution, the combination of pipe one and pipe two, the enclosed design can make the cooling efficiency of the frame heat-conducting plate and the supporting heat-conducting plate roughly the same, preventing the problem of product deformation and cracking caused by inconsistent cooling rates in injection molded products.

[0010] Furthermore, the inner walls of several sliding ports are fitted with the outer walls of the corresponding positioning rods, the outer walls of the sealing rings are fitted with the inner walls of the sealing grooves, the temperature sensors are electrically connected to the heat-conducting plates of the frame and the supporting heat-conducting plates, the right side of the outer wall of the lowest pipe is connected to a water inlet pipe, the water inlet pipe is connected to the outlet of the external cooling circulation equipment, the right end of the water inlet pipe passes through the fixed mold through a leak-proof rubber sleeve and extends to the outside, the left side of the outer wall of the highest pipe is connected to a water outlet pipe, the left end of the water outlet pipe passes through the fixed mold through a leak-proof rubber sleeve and extends to the outside, the water outlet pipe is connected to the inlet of the external cooling circulation equipment.

[0011] Through the above technical solution, the outer wall of the sealing ring fits into the inner wall of the sealing groove, so that the moving mold and the fixed mold have a good sealing effect after the mold is closed, and the external cooling circulation equipment drives the cooling water to cool the injection molded product.

[0012] Furthermore, the heat dissipation component includes several rotating shafts, which are evenly arranged front and back. The side wall of the fixed mold has an installation groove, and the inner wall of the installation groove is rotatably connected to the several rotating shafts.

[0013] Through the above technical solution, several rotating shafts are rotatably installed in the inner wall of the mounting groove.

[0014] Furthermore, several outer walls of the rotating shafts are fixedly mounted with heat dissipation fins, several inner walls of the heat dissipation fins are rounded, several heat dissipation fins are evenly stacked from back to front, and the stacking position of several heat dissipation fins matches the rounded corners.

[0015] Through the above technical solution, the rotating shaft will drive the heat dissipation fins to rotate. Since the heat dissipation fins are stacked, they rotate synchronously, resulting in higher overall efficiency and increased airflow to improve heat dissipation and cooling efficiency.

[0016] Furthermore, a spiral frame is fixedly installed on the bottom wall of the fixed mold, and a dustproof net is fixedly installed on the inner wall of the spiral frame.

[0017] With the above technical solutions, can the cooperation between the forming frame and the dustproof net prevent the problem of dust from the bottom entering the mold?

[0018] Furthermore, a controller is fixedly installed on the left side of the front wall of the fixed mold. The controller is electrically connected to the temperature sensor. A support frame is fixedly installed on the bottom wall of the fixed mold. The top wall of the support frame is fixedly connected to the bottom wall of the U-shaped frame.

[0019] Through the above technical solution, the support frame provides support and fixation for the entire device.

[0020] Furthermore, the top wall of the moving mold is connected to a feed pipe, and the bottom end of the feed pipe is connected to the cavity after the moving mold and the fixed mold are closed.

[0021] The above technical solution allows the feed pipe to be used to inject liquid plastic into the mold cavity.

[0022] Beneficial effects

[0023] This invention provides a temperature control channel structure for injection molds. Compared with the prior art, it has the following advantages:

[0024] (1) The temperature control channel structure of the injection mold, through the cooperation of various components in the heat dissipation component and the temperature control component, can maintain a relatively uniform cooling rate in various positions of the injection molded product when cooling the injection molded product, since the first and second pipes are designed to be wrapped. This can prevent uneven cooling and has good working efficiency when controlling the temperature of the injection molded product, thus improving the production work to a greater extent. Attached Figure Description

[0025] Figure 1 This is a front view of the overall structure of this utility model;

[0026] Figure 2 This is a right-side view of the external structure of this utility model;

[0027] Figure 3 This is a cross-sectional view of the internal structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the sealing groove and sealing ring combination of this utility model;

[0029] Figure 5 This is a schematic diagram of the internal structure of the temperature control component of this utility model;

[0030] Figure 6 This is a rear view of the internal structure of the temperature control component of this utility model;

[0031] Figure 7This is an exploded view of the internal structure of the heat dissipation component of this utility model.

[0032] In the diagram: 1. Fixed mold; 2. Moving mold; 3. Positioning rod; 4. Feed pipe; 5. Slide; 6. Controller; 7. Support frame; 8. Heat dissipation assembly; 81. Mounting slot; 82. Rotating shaft; 83. Heat dissipation fins; 84. Rounded corner; 85. Rectangular frame; 86. Dustproof net; 9. Temperature control assembly; 91. Temperature sensor; 92. Cavity; 93. Sealing groove; 94. Sealing ring; 95. Frame heat conduction plate; 96. Support heat conduction plate; 97. Pipeline 1; 98. Pipeline 2; 99. Connecting pipe; 910. Water outlet pipe; 911. Water inlet pipe. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1:

[0035] Please see Figures 1-7 A temperature control channel structure for an injection mold includes a fixed mold 1, a temperature control component 9 installed in the inner cavity of the fixed mold 1, a controller 6 installed on the front wall of the fixed mold 1, heat dissipation components 8 installed on the outer walls of the fixed mold 1, positioning rods 3 fixedly installed at the four corners of the top wall of the fixed mold 1, a moving mold 2 installed on the top wall of the fixed mold 1, and sliding openings 5 ​​opened on the top wall of the moving mold 2 and at the positions corresponding to the outer walls of the positioning rods 3.

[0036] The temperature control component 9 includes a frame heat-conducting plate 95, a supporting heat-conducting plate 96 fixedly installed on the bottom wall of the frame heat-conducting plate 95, a cavity 92 opened inside the fixed mold 1, the inner wall of the cavity 92 fixedly connected to the top of the outer wall of the frame heat-conducting plate 95, a sealing groove 93 opened on the top wall of the fixed mold 1, a sealing ring 94 fixedly installed on the bottom wall of the moving mold 2, pipes 97 are evenly installed from top to bottom on the outer wall of the frame heat-conducting plate 95, and the rear of the outer walls of several pipes 97 are all connected to the same connecting pipe 99, and several pipes 98 are evenly connected to the bottom of the lowest pipe 97, and the pipes 98, pipes 97 and connecting pipe 99 are all interconnected, and a temperature sensor is installed on the front wall of the fixed mold 1. The inner walls of several sliding ports 5 of the sensor 91 are all in contact with the outer walls of the corresponding positioning rods 3. The outer wall of the sealing ring 94 is in contact with the inner wall of the sealing groove 93. The temperature sensor 91 is electrically connected to the frame heat-conducting plate 95 and the supporting heat-conducting plate 96. The right side of the outer wall of the pipe 97 at the bottom is connected to the water inlet pipe 911, which is connected to the water outlet of the external cooling circulation equipment. The right end of the water inlet pipe 911 passes through the fixed mold 1 through the anti-leakage rubber sleeve and extends to the outside. The left side of the outer wall of the pipe 97 at the top is connected to the water outlet pipe 910, which passes through the fixed mold 1 through the anti-leakage rubber sleeve and extends to the outside. The water outlet pipe 910 is connected to the water inlet of the external cooling circulation equipment.

[0037] In this embodiment of the utility model, the purpose of this setting is that when the temperature control component 9 is working, it can quickly cool and mold the injection molded product. Since the first pipe 97 and the second pipe 98 are designed with a wrap-around shape, the cooling rate of each part of the injection molded product can be kept approximately the same, avoiding the problem of cracking and deformation of the injection molded product caused by uneven cooling rate. This makes the overall temperature control of the injection molded product precise during cooling and molding, which helps to improve the production and processing efficiency of the injection molded product and has a good use effect.

[0038] Example 2:

[0039] Please see Figures 1-7This embodiment provides a technical solution based on embodiment one: the heat dissipation assembly 8 includes several rotating shafts 82, which are evenly arranged front and back. The side wall of the fixed mold 1 is provided with an installation groove 81, the inner wall of the installation groove 81 is rotatably connected to several rotating shafts 82, the outer walls of several rotating shafts 82 are fixedly installed with heat dissipation fins 83, the inner walls of several heat dissipation fins 83 are provided with rounded corners 84, the several heat dissipation fins 83 are evenly stacked from back to front, and the stacking position of several heat dissipation fins 83 matches the rounded corners 84. The bottom wall of the fixed mold 1 is fixedly installed with a U-shaped frame 85, the inner wall of the U-shaped frame 85 is fixedly installed with a dustproof net 86, the left side of the front wall of the fixed mold 1 is fixedly installed with a controller 6, the controller 6 is electrically connected to a temperature sensor 91, the bottom wall of the fixed mold 1 is fixedly installed with a support frame 7, the top wall of the support frame 7 is fixedly connected to the bottom wall of the U-shaped frame 85, the top wall of the moving mold 2 is connected with a feed pipe 4, and the bottom end of the feed pipe 4 is connected to the cavity after the moving mold 2 and the fixed mold 1 are closed.

[0040] In this embodiment of the utility model, the purpose of this arrangement is that when the injection molded product needs to be cooled and molded, the heat dissipation fins 83 can be opened to increase the external airflow into the cavity 92, thereby improving the cooling of the frame heat conduction plate 95, the supporting heat conduction plate 96, and the internal injection molded product. Since the heat dissipation fins 83 are stacked one on top of the other, opening and closing can be performed simultaneously, which is very convenient.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] During operation, the moving mold 2 slides downwards along the outer wall of the positioning rod 3 through the slide 5, causing the moving mold 2 and the fixed mold 1 to close. Simultaneously, the sealing ring 94 enters the sealing groove 93 to form a seal, preventing overflow during liquid plastic injection. The external injection molding machine injects the product into the cavity after mold closing through the feed pipe 4. The heat generated during molding is conducted through the frame heat-conducting plate 95 and the supporting heat-conducting plate 96. The temperature sensor 91 monitors the temperature changes of the molded product inside the frame heat-conducting plate 95 and the supporting heat-conducting plate 96 in real time and transmits the temperature to the controller 6. The operator sets the cooling temperature through the controller 6. When the temperature monitored by the temperature sensor 91 is higher than the set temperature, the external cooling circulation equipment delivers cooling water from the outlet, which enters through the inlet pipe 911 into the pipe 97, the frame heat-conducting plate 95, and the connecting pipe 99, cooling the flowing water. The heat dissipated from the frame heat-conducting plate 95 and the supporting heat-conducting plate 96 is carried away and discharged outward from the outlet pipe 910. The rotation of the heat dissipation fins 83 at the front drives the corresponding rotating shaft 82 to rotate. Since the heat dissipation fins 83 are stacked, after the front heat dissipation fins 83 rotate, they sequentially drive the multiple heat dissipation fins 83 and the rotating shaft 82 at the rear to rotate. When the heat dissipation fins 83 are perpendicular to the fixed mold 1, external air can enter the cavity 92 inside the fixed mold 1 through the mounting groove 81, increasing airflow and improving the cooling effect on the frame heat-conducting plate 95 and the supporting heat-conducting plate 96, thereby helping the injection molded product to cool and form. In addition, the pipes 1 97 and 2 98 can cover most of the area of ​​the frame heat-conducting plate 95 and the supporting heat-conducting plate 96, so that the internal cooling of the injection molded product can be roughly consistent, preventing uneven temperature.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature control channel structure for an injection mold, characterized in that: The mold includes a fixed mold (1), a temperature control component (9) installed in the inner cavity of the fixed mold (1), a controller (6) installed on the front wall of the fixed mold (1), heat dissipation components (8) installed on the outer walls of the fixed mold (1), positioning rods (3) fixedly installed at the four corners of the top wall of the fixed mold (1), a moving mold (2) installed on the top wall of the fixed mold (1), and sliding openings (5) are provided on the top wall of the moving mold (2) and at the position corresponding to the outer wall of the positioning rods (3). The temperature control component (9) includes a frame heat-conducting plate (95), a supporting heat-conducting plate (96) is fixedly installed on the bottom wall of the frame heat-conducting plate (95), a cavity (92) is opened inside the fixed mold (1), the inner wall of the cavity (92) is fixedly connected to the top of the outer wall of the frame heat-conducting plate (95), a sealing groove (93) is opened on the top wall of the fixed mold (1), a sealing ring (94) is fixedly installed on the bottom wall of the moving mold (2), pipes one (97) are evenly installed from top to bottom on the outer wall of the frame heat-conducting plate (95), the rear of several pipes one (97) are all connected to the same connecting pipe (99), several pipes two (98) are evenly connected to the bottom of the lowest pipe one (97), several pipes two (98), pipes one (97) and connecting pipe (99) are all interconnected, and a temperature sensor (91) is installed on the front wall of the fixed mold (1).

2. The temperature control channel structure of the injection mold according to claim 1, characterized in that: The inner walls of several of the sliding ports (5) are all in contact with the outer walls of the corresponding positioning rods (3). The outer wall of the sealing ring (94) is in contact with the inner wall of the sealing groove (93). The temperature sensor (91) is electrically connected to the frame heat-conducting plate (95) and the supporting heat-conducting plate (96). The right side of the outer wall of the bottommost pipe (97) is connected to the water inlet pipe (911). The water inlet pipe (911) is connected to the outlet of the external cooling circulation equipment. The right end of the water inlet pipe (911) passes through the fixed mold (1) through the anti-leakage rubber sleeve and extends to the outside. The left side of the outer wall of the topmost pipe (97) is connected to the water outlet pipe (910). The left end of the water outlet pipe (910) passes through the fixed mold (1) through the anti-leakage rubber sleeve and extends to the outside. The water outlet pipe (910) is connected to the inlet of the external cooling circulation equipment.

3. The temperature control channel structure of the injection mold according to claim 1, characterized in that: The heat dissipation component (8) includes several rotating shafts (82), which are evenly arranged front and back. The side wall of the fixed mold (1) is provided with an installation groove (81), and the inner wall of the installation groove (81) is rotatably connected to the several rotating shafts (82).

4. The temperature control channel structure of the injection mold according to claim 3, characterized in that: The outer walls of several of the rotating shafts (82) are fixedly installed with heat dissipation fins (83), the inner walls of several of the heat dissipation fins (83) are provided with rounded corners (84), the several heat dissipation fins (83) are stacked evenly from back to front, and the stacking position of several heat dissipation fins (83) matches the rounded corners (84).

5. The temperature control channel structure of the injection mold according to claim 1, characterized in that: A spiral frame (85) is fixedly installed on the bottom wall of the fixed mold (1), and a dustproof net (86) is fixedly installed on the inner wall of the spiral frame (85).

6. The temperature control channel structure of the injection mold according to claim 1, characterized in that: A controller (6) is fixedly installed on the left side of the front wall of the fixed mold (1). The controller (6) is electrically connected to the temperature sensor (91). A support frame (7) is fixedly installed on the bottom wall of the fixed mold (1). The top wall of the support frame (7) is fixedly connected to the bottom wall of the U-shaped frame (85).

7. The temperature control channel structure of the injection mold according to claim 1, characterized in that: The top wall of the moving mold (2) is connected to the feed pipe (4), and the bottom end of the feed pipe (4) is connected to the cavity after the moving mold (2) and the fixed mold (1) are closed.

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