A high-efficiency heat dissipation device for a PLC shell mold

Abstract

The utility model relates to mould field, and disclose a kind of high-efficiency heat dissipation device of PLC shell mould, including lower mould and upper mould, the side of lower mould and upper mould corresponding each other is provided with mould cavity, the inside of the bottom of lower mould is provided with cooling runner, the inside of lower mould is provided with locking assembly, the plug-in end of being able to be plugged into the inside of lower mould is set up on upper mould, locking assembly is connected with plug-in end, and the high-efficiency heat dissipation device of this PLC shell mould is effectively solved the technical problem of traditional mould by innovative design.Cooling runner adopts multiple U-shaped cavity structure, significantly prolongs the flow time of coolant in mould, expands cooling range, can quickly and evenly take away the heat generated in the production process of mould, avoids local overheating phenomenon, and greatly improves heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of molds, specifically a high-efficiency heat dissipation device for a PLC housing mold. Background Technology

[0002] In the field of industrial automation, PLCs (Programmable Logic Controllers) serve as core control devices and are widely used in intelligent manufacturing, industrial robots, automated production lines, and other scenarios. With the continuous improvement of industrial production efficiency, the heat generated by PLCs during operation is increasing dramatically, posing a serious challenge to traditional mold heat dissipation technologies.

[0003] For example, Chinese patent CN210758898U describes an injection mold with a high-efficiency heat dissipation device, comprising a base plate, a counterweight installed at the bottom center of the base plate, support rods fixedly connected to both sides of the top of the base plate, a support plate fixedly connected to the top of the support rods, guide rods fixedly connected to both sides of the top of the support plate, a top plate fixedly connected to the top of the guide rods, a hydraulic cylinder installed at the bottom center of the top plate, a movable frame fixedly connected to the bottom end of the output shaft of the hydraulic cylinder, a moving mold installed at the bottom of the movable frame, a plurality of injection holes opened at the top of the moving mold, the injection holes penetrating the movable frame, and a fixed mold located directly below the moving mold. This utility model features a reasonable structural design, high stability, high heat dissipation efficiency, and a variety of heat dissipation methods.

[0004] Therefore, based on the above patents, it can be seen that the existing PLC housing mold heat dissipation devices mostly adopt air cooling or simple inline liquid cooling structures. Air cooling is easily affected by environmental dust and humidity, and has low heat dissipation efficiency, making it difficult to cope with local high temperatures. The inline liquid cooling flow channel design makes the flow path of the coolant in the mold short and the cooling range limited, which cannot achieve uniform cooling of the mold, resulting in problems such as dimensional deviations and surface defects during the PLC housing molding process.

[0005] Meanwhile, the current methods for fixing the upper and lower molds generally suffer from low efficiency and poor stability. Traditional snap-fit ​​or bolt connections are not only cumbersome to operate and prolong mold assembly time, but also prone to loosening after long-term, high-frequency opening and closing, affecting the mold closing accuracy and reducing the production quality and yield of PLC housings. To address this, we propose a high-efficiency heat dissipation device for PLC housing molds. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a high-efficiency heat dissipation device for PLC housing molds, thus solving the aforementioned problems.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a high-efficiency heat dissipation device for a PLC housing mold, comprising a lower mold and an upper mold, wherein each of the lower mold and the upper mold has a mold cavity on one side corresponding to each other, a cooling channel is provided inside the bottom of the lower mold, a locking component is provided inside the lower mold, and an insertion end is provided on the upper mold that can be inserted into the lower mold, wherein the locking component is engaged with the insertion end.

[0008] Preferably, connecting pipes are fixedly installed on both sides of the lower mold at the openings at both ends of the cooling channel, and the cooling channel is composed of multiple U-shaped cavities.

[0009] Preferably, the lower mold has four integrally formed insertion rods at the top corners, and the upper mold has circular grooves at the positions corresponding to the insertion rods. When the upper mold and the lower mold are in contact, the insertion rods are inserted into the circular grooves, which increases the guiding effect of the insertion rods when the upper mold moves downward.

[0010] Preferably, a rectangular groove is provided on the surface of the lower mold corresponding to the position of the insertion end. The insertion end includes an insertion block. Each of the two insertion blocks on opposite sides has a locking groove. The locking end of the locking component can engage with the locking groove. When the insertion block is inserted into the rectangular groove, the opposite side of the two insertion blocks does not fit against the opposite side of the inner wall of the rectangular groove on both sides.

[0011] Preferably, the lower mold has a transverse mounting cavity inside, the two ends of which are connected to the rectangular groove, and the locking component is disposed inside the transverse mounting cavity.

[0012] Preferably, the locking assembly includes a motor, two slide rods, and a gear. The rotation shaft of the motor extends into the interior of the transverse mounting cavity and is fixedly connected to the center point of the gear. The two slide rods are located on the upper and lower sides of the gear, respectively. Each slide rod has multiple sets of teeth integrally formed at equal intervals on one side corresponding to the gear. The teeth mesh with the gear. Each of the two slide rods has a bent locking block fixedly installed at one end opposite to the other. The bent end of the bent locking block engages with the locking groove.

[0013] Preferably, an inner wall groove is formed on the inner wall of the transverse mounting cavity, and a sliding protrusion is integrally formed on the slide rod at the position corresponding to the inner wall groove, and the sliding protrusion is slidably engaged with the inner wall groove.

[0014] Compared with the prior art, this utility model provides a high-efficiency heat dissipation device for PLC housing mold, which has the following beneficial effects:

[0015] The high-efficiency heat dissipation device of this PLC housing mold, through innovative design, effectively solves the technical problems existing in traditional molds. The cooling channel adopts a multi-group U-shaped cavity structure, which significantly extends the flow time of the coolant in the mold and expands the cooling range. It can quickly and evenly remove the heat generated by the mold during the production process, avoid local overheating, greatly improve heat dissipation efficiency, ensure that the PLC housing is formed in a stable temperature environment, reduce quality problems such as dimensional deformation and surface shrinkage caused by uneven temperature, and improve product molding accuracy and yield.

[0016] Regarding mold connection and fixation, the locking assembly achieves automated and rapid engagement of the upper and lower molds through the meshing transmission of the motor-driven gear and slide bar. Compared to the traditional manual fixing method, this is simpler and more efficient, significantly shortening mold assembly time and improving production efficiency. Simultaneously, the precise engagement of the bending block and the locking groove, combined with the guiding positioning of the plug-in rod and the circular groove, ensures a firm and stable connection of the mold in the closed state, effectively preventing mold loosening during production and guaranteeing the precision and quality consistency of the PLC housing molding. Furthermore, the cooperative design of the sliding protrusion and the inner wall groove enhances the stability and reliability of the slide bar movement, further improving the service life of the locking assembly and the overall performance of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of the present invention;

[0019] Figure 3 for Figure 2 AA section view diagram;

[0020] Figure 4 for Figure 2 BB cross-sectional diagram in the middle;

[0021] Figure 5 for Figure 2 CC section view diagram;

[0022] Figure 6 This is a top view of the present invention;

[0023] Figure 7 for Figure 5 DD sectional view diagram in the middle;

[0024] Figure 8 for Figure 7 A magnified view of part E in the diagram.

[0025] In the diagram: 1. Lower mold; 2. Connecting pipe; 3. Upper mold; 4. Motor; 5. Cooling channel; 6. Bending block; 7. Insert rod; 8. Rectangular groove; 9. Mold cavity; 10. Insert block; 11. Horizontal mounting cavity; 12. Slide rod; 13. Tooth; 14. Gear; 15. Snap-fit ​​groove; 16. Inner wall groove; 17. Sliding protrusion. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-8 A high-efficiency heat dissipation device for a PLC housing mold includes a lower mold 1 and an upper mold 3. Each of the lower mold 1 and the upper mold 3 has a corresponding cavity 9 on one side. The bottom of the lower mold 1 has a cooling channel 5 and a locking component. The upper mold 3 has a plug-in end that can be inserted into the lower mold 1. The locking component engages with the plug-in end. During production, coolant is injected into the cooling channel 5. As it flows, the temperature generated inside the lower mold 1 is reduced, achieving a heat dissipation and cooling effect. At the same time, when the upper mold 3 moves downward and the two are closed, the plug-in end of the upper mold 3 is inserted into the lower mold 1, and then the locking component engages with the plug-in end to fix the two together.

[0028] Furthermore, connecting pipes 2 are fixedly installed on both sides of the lower mold 1 at the openings at both ends of the cooling channel 5. The cooling channel 5 is composed of multiple U-shaped cavities. The U-shaped cavities can maintain the flow time of the coolant inside the lower mold 1, while ensuring the cooling range.

[0029] Furthermore, the four corners of the top of the lower mold 1 are integrally formed with insertion rods 7, and the upper mold 3 has a circular groove at the position corresponding to the insertion rods 7. When the upper mold 3 and the lower mold 1 are in contact, the insertion rods 7 are inserted into the circular grooves, which increases the guiding effect of the insertion rods 7 when the upper mold 3 moves downward.

[0030] Furthermore, a rectangular groove 8 is provided on the surface of the lower mold 1 at the position corresponding to the insertion end. The insertion end includes an insertion block 10. The insertion blocks 10 on both sides are provided with snap-fit ​​grooves 15 on the wall surface opposite to each other. The snap-fit ​​end of the locking component can snap into the snap-fit ​​groove 15. When the insertion block 10 is inserted into the rectangular groove 8, the two insertion blocks 10 do not fit against the inner wall of the rectangular groove 8 on the opposite side.

[0031] Furthermore, the lower mold 1 has a transverse mounting cavity 11 inside, and both ends of the transverse mounting cavity 11 are connected to the rectangular groove 8. The locking component is located inside the transverse mounting cavity 11.

[0032] Furthermore, the locking assembly includes a motor 4, two slide rods 12, and a gear 14. The rotation shaft of the motor 4 extends into the interior of the transverse mounting cavity 11 and is fixedly connected to the center point of the gear 14. The two slide rods 12 are located on the upper and lower sides of the gear 14, respectively. Each slide rod 12 has multiple sets of teeth 13 integrally formed at equal intervals on one side corresponding to the gear 14. The teeth 13 mesh with the gear 14. A bending block 6 is fixedly installed at the opposite ends of the two slide rods 12. The bent end of the bending block 6 engages with the engaging groove 15. When the side of the bent part of the bending block 6 is in contact with the groove, the locking mechanism engages with the groove. When the inner wall of the rectangular groove 8 is in contact with the mold, the bent end of the bending block 6 is not engaged inside the engagement groove 15. When the lower mold 1 and the upper mold 3 are in contact, the insertion block 10 will be inserted into the rectangular groove 8. Then the motor 4 starts and drives the gear 14 to rotate. During the rotation, due to the meshing, the two slide rods 12 slide in a mirror image. When the two bending blocks 6 slide towards each other, the bent end of the bending block 6 will engage inside the engagement groove 15, completing the engagement and ensuring the stability of the mold during molding.

[0033] Furthermore, an inner wall groove 16 is provided on the inner wall of the horizontal mounting cavity 11, and a sliding protrusion 17 is integrally formed on the slide rod 12 at the position corresponding to the inner wall groove 16. The sliding protrusion 17 is slidably engaged with the inner wall groove 16.

[0034] Working principle: During production, coolant is injected into the cooling channel 5. As it flows, it reduces the temperature generated inside the lower mold 1, achieving the effect of heat dissipation and cooling. At the same time, when the upper mold 3 moves downward and the two close, the plug end of the upper mold 3 is inserted into the lower mold 1. Then, the locking component engages with the plug end to fix the two together.

[0035] Structural Description:

[0036] Lower mold 1: As the base of the mold, its bottom interior is equipped with cooling channels 5 for heat dissipation. The four integrally formed plug rods 7 at the top corners can guide the upper mold 3 when it moves downwards, ensuring precise alignment of the upper and lower molds. Rectangular slots 8 are provided on the surface corresponding to the plug ends to accommodate the plug ends of the upper mold 3, and together with the locking components, to achieve a fixed connection between the upper and lower molds.

[0037] Upper mold 3: Cooperates with lower mold 1, and has a cavity 9 on one side for molding the PLC housing. It has a plug-in end that can be inserted into the lower mold 1 and engaged with the locking component of the lower mold 1. A circular groove is provided at the position of the plug-in rod 7 of the lower mold 1, which is engaged with the plug-in rod 7 to assist in positioning when the mold is closed.

[0038] Cooling channel 5: Located inside the bottom of the lower mold 1, it consists of multiple U-shaped cavities. This U-shaped cavity design extends the flow time of the coolant inside the lower mold 1, expands the cooling range, and removes the heat generated by the lower mold 1 during production by injecting coolant, achieving a heat dissipation and cooling effect. Connecting pipes 2 are fixedly installed on both sides of the lower mold 1 at the openings at both ends of the cooling channel 5, for connecting to coolant delivery equipment to ensure the circulation of coolant.

[0039] Locking assembly: Installed in the transverse mounting cavity 11 inside the lower mold 1, it consists of a motor 4, two sliding rods 12, and a gear 14. The rotating shaft of the motor 4 extends into the transverse mounting cavity 11 and is fixedly connected to the gear 14. The rotation of the motor 4 drives the gear 14 to rotate. The two sliding rods 12 are located on the upper and lower sides of the gear 14, respectively. Each sliding rod 12 has multiple sets of teeth 13 integrally formed at equal intervals on one side corresponding to the gear 14, which mesh with the gear 14. When the gear 14 rotates, it drives the two sliding rods 12 to slide in a mirror image. A bending block 6 is fixedly installed at the opposite ends of the two sliding rods 12. When the insertion end of the upper mold 3 is inserted into the rectangular groove 8 of the lower mold 1, the motor 4 starts, and the bending block 6 slides towards the side that is closer to each other. Its bent end will engage with the engaging groove 15 of the insertion end of the upper mold 3, thus firmly fixing the upper and lower molds and ensuring the stability of the mold during molding. An inner wall groove 16 is provided on the inner wall of the horizontal mounting cavity 11. A sliding protrusion 17 is integrally formed on the slide rod 12 at the position corresponding to the inner wall groove 16. The two slide and engage, which restricts the movement direction of the slide rod 12 and enhances its sliding stability.

[0040] Insertion end: Set on the upper mold 3, including insertion block 10. Each of the two insertion blocks 10 has a locking groove 15 on the opposite side wall, which is used to engage with the bending locking block 6 of the locking component of the lower mold 1. When the insertion block 10 is inserted into the rectangular groove 8 of the lower mold 1, the opposite side wall of the two insertion blocks 10 does not fit against the opposite side inner wall of the rectangular groove 8, leaving space for the bending locking block 6 of the locking component to engage.

[0041] Plug-in rod 7: The structure is integrally formed at the four corners of the top of the lower mold 1 and plugs into the circular grooves at the corresponding positions of the upper mold 3. During the closing process of the upper and lower molds, it plays a guiding role to ensure that the upper mold 3 can accurately fit with the lower mold 1 and ensure the accuracy of mold assembly.

[0042] Rectangular groove 8: It is opened on the surface of the lower mold 1 at the position corresponding to the insertion end, and is used to accommodate the insertion end of the upper mold 3, provide space for the insertion of the insertion block 10, and cooperate with the locking component to realize the snap-fit ​​fixation of the upper and lower molds.

[0043] Horizontal mounting cavity 11: It is opened inside the lower mold 1, and its two ends are connected to the rectangular groove 8. It provides installation space for the locking component, so that the locking component can move in it and realize the snap-fit ​​and separation operation with the upper mold 3 insertion end.

[0044] Slide rod 12: A component of the locking assembly, located on the upper and lower sides of gear 14. It meshes with gear 14 via teeth 13 and slides mirror-like under the drive of gear 14. One end is fixedly mounted with a bending block 6, which moves by sliding itself, thus engaging and disengaging with the engagement groove 15 at the insertion end of the upper mold 3. A sliding protrusion 17 is integrally formed at the position corresponding to the groove 16 on the inner wall of the transverse mounting cavity 11, which slides and engages with the groove 16 to ensure the stability and accuracy of the slide rod 12's sliding.

[0045] Gear 14: In the locking assembly, it is fixedly connected to the rotating shaft of motor 4 and rotates under the drive of motor 4. By utilizing the meshing relationship with the teeth 13 on slide rod 12, the rotational motion of motor 4 is converted into linear sliding of slide rod 12, thereby driving the bending block 6 to move and realizing the locking and fixing of upper and lower molds.

[0046] Inner wall groove 16: It is formed on the inner wall of the transverse mounting cavity 11 and is slidably engaged with the sliding protrusion 17 on the slide rod 12. It restricts the movement direction of the slide rod 12, ensures that the slide rod 12 slides smoothly in the transverse mounting cavity 11, and improves the reliability of the locking assembly.

[0047] Sliding protrusion 17: integrally formed at the position of the inner wall groove 16 corresponding to the slide rod 12, and slidably engaged with the inner wall groove 16. It works with the inner wall groove 16 to guide and stabilize the sliding of the slide rod 12, ensuring that the slide rod 12 can move accurately during the operation of the locking assembly, and achieving reliable fixation of the upper and lower molds.

[0048] 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 high-efficiency heat dissipation device for a PLC housing mold, comprising a lower mold (1) and an upper mold (3), characterized in that, The lower mold (1) and the upper mold (3) are provided with mold cavities (9) on their corresponding sides. The lower mold (1) is provided with a cooling channel (5) inside its bottom. The lower mold (1) is provided with a locking component inside its interior. The upper mold (3) is provided with a plug-in end that can be inserted into the lower mold (1). The locking component is engaged with the plug-in end.

2. The high-efficiency heat dissipation device for a PLC housing mold according to claim 1, characterized in that: Connecting pipes (2) are fixedly installed on both sides of the lower mold (1) at the openings at both ends of the cooling channel (5). The cooling channel (5) is composed of multiple U-shaped cavities.

3. The high-efficiency heat dissipation device for a PLC housing mold according to claim 1, characterized in that: The lower mold (1) has four corners at the top integrally formed with plug rods (7), and the upper mold (3) has a circular groove at the position corresponding to the plug rods (7).

4. The high-efficiency heat dissipation device for a PLC housing mold according to claim 1, characterized in that: The lower mold (1) has a rectangular groove (8) on the surface corresponding to the insertion end. The insertion end includes an insertion block (10). The insertion blocks (10) on both sides are provided with snap-fit ​​grooves (15) on one side wall. The snap-fit ​​end of the locking component can snap into the snap-fit ​​groove (15).

5. The high-efficiency heat dissipation device for a PLC housing mold according to claim 4, characterized in that: The lower mold (1) has a transverse mounting cavity (11) inside. Both ends of the transverse mounting cavity (11) are connected to the rectangular groove (8). The locking component is located inside the transverse mounting cavity (11).

6. The high-efficiency heat dissipation device for a PLC housing mold according to claim 5, characterized in that: The locking assembly includes a motor (4), two slide rods (12) and a gear (14). The rotation shaft of the motor (4) extends into the interior of the transverse mounting cavity (11) and is fixedly connected to the center point of the gear (14). The two slide rods (12) are located on the upper and lower sides of the gear (14) respectively. Each slide rod (12) has multiple sets of teeth (13) integrally formed at equal intervals on one side of the gear (14). The teeth (13) mesh with the gear (14). Each of the two slide rods (12) has a bent locking block (6) fixedly installed at one end opposite to the other. The bent end of the bent locking block (6) engages with the locking groove (15).

7. The high-efficiency heat dissipation device for a PLC housing mold according to claim 6, characterized in that: The inner wall of the transverse mounting cavity (11) is provided with an inner wall groove (16), and the sliding rod (12) is integrally formed with a sliding protrusion (17) at the position corresponding to the inner wall groove (16), and the sliding protrusion (17) is slidably engaged with the inner wall groove (16).

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