Cooling device for injection mold

Abstract

The utility model discloses an injection mold cooling device, which relates to the technical field of cooling devices and comprises a working table, a working groove is formed in the center of the upper surface of the working table, and two-way threaded rods are rotatably connected to the centers of the two ends in the inner wall of the working groove. One section of the outer wall of the two-way threaded rod penetrates through the center of the inner wall of the working groove and is fixedly connected with a working motor, the center of the outer wall of the two-way threaded rod penetrates through and is rotationally connected with a mold table, the top surface of the mold table is fixedly connected with a mold shell, and the positions, close to the two sides, of the bottom surface of the working groove are fixedly connected with a set of liquid cooling devices; the liquid cooling devices are located on the two sides of the mold table. According to the device, the two-way threaded rod can be driven by the working motor to slide along the outer wall of the sliding rod through threads, so that the fixing plate can horizontally and oppositely slide on the two sides of the mold shell, and the device can be compatible with injection molds with different sizes in the working process by driving the fixing plate through the two-way threaded rod arranged in the device.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling devices, in particular to an injection mold cooling device. Background Art

[0002] The injection mold cooling device is a device used to cool the mold. The main purpose of this device is to speed up the melting of plastic, shorten the production cycle, improve production efficiency, and help improve the quality of plastic parts. It should be noted that the temperature of the plastic mold will directly affect the filling and molding of the melt, the quality of the plastic parts and production efficiency. In the entire molding cycle, the cooling time accounts for 70% to 80%. If the mold temperature is too high, it will cause uneven molding shrinkage, large deformation of the plastic parts after demolding, and even overflow or sticking. On the contrary, if the mold temperature is too low, the plastic melt has poor fluidity, which may cause defects on the product surface. Therefore, a good cooling system design is crucial to ensure product quality and production efficiency.

[0003] Currently, the existing injection mold cooling devices mostly use air cooling during the cooling process. During the cooling process of the injection mold, the overall temperature of the mold is uneven, which leads to increased internal stress of the product, thereby affecting its strength and durability or causing cracks, thereby affecting the quality of the finished product and reducing the production yield. In view of this, we provide an injection mold cooling device. Utility Model Content

[0004] Technical issues solved

[0005] The utility model aims to make up for the deficiencies of the prior art and provides an injection mold cooling device.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold cooling device, comprising a work table, a working groove is opened in the center of the upper surface of the work table, two ends of the inner wall of the working groove are rotatably connected with a bidirectional threaded rod, and one section of the outer wall of the bidirectional threaded rod passes through the center of the inner wall of the working groove and is fixedly connected to a working motor, the center of the outer wall of the bidirectional threaded rod passes through and is rotatably connected to a mold table, and the top surface of the mold table is fixedly connected to a mold shell, and a group of liquid cooling devices are fixedly connected to the bottom surface of the working groove near both sides, and the liquid cooling devices are located on both sides of the mold table.

[0008] As a preferred technical solution of the utility model, the output end of the working motor passes through one end of the outer wall of the work table and is fixedly connected to one end of the bidirectional threaded rod, and a driving block is penetrated by threads near both ends of the outer wall of the bidirectional threaded rod and rotatably connected, and the driving block is slidably connected to the two ends of the working groove through the bidirectional threaded rod.

[0009] As a preferred technical solution of the utility model, a group of corresponding connecting blocks are fixedly connected on both sides of the bottom of the mold table, and a sliding rod is passed through and fixedly connected to the inner center of the connecting block. The outer wall of the sliding rod is inserted into the bottom end of the driving block near both ends and is slidably connected with it, and the sliding rod is located on both sides of the bidirectional threaded rod.

[0010] As an optimal technical solution of the utility model, a fixing plate is fixedly connected to one side of the upper surface of the driving block, and the fixing plate is L-shaped as a whole. The fixing plate is located on both sides of the mold shell, and the fixing plate is slidably connected to both sides of the mold shell through a bidirectional threaded rod and a sliding rod.

[0011] As a preferred technical solution of the utility model, a heat dissipation copper tube is embedded inside the outer wall of the fixed plate close to the mold table, and the heat dissipation copper tube is generally U-shaped as a whole.

[0012] As a preferred technical solution of the utility model, one end of the top of the heat dissipation copper tube is fixedly connected to an oil outlet hose, and one end of the bottom of the oil outlet hose is fixedly connected to the outer wall of one end of the liquid cooling device.

[0013] As a preferred technical solution of the utility model, the end of the liquid cooling device away from the oil outlet hose is fixedly connected to an oil return hose, and the top end of the oil return hose is fixedly connected to the bottom end of the heat dissipation copper tube.

[0014] Beneficial effects:

[0015] Compared with the prior art, this injection mold cooling device has the following beneficial effects:

[0016] 1. After the mold shell is placed on the surface of the mold table, the utility model drives the working motor to drive the bidirectional threaded rod to rotate inside the working groove and on both sides of the mold table. When the bidirectional threaded rod rotates, the threads in opposite directions at both ends of the outer wall can drive the corresponding fixed plates at both ends to move inward or outward together. At the same time, a group of sliding rods inserted at the bottom end of the driving block can make the driving block drive the top fixed plate to move more stably, and fix the fixed plate 10 on both sides of the mold shell through the top surface of the driving block, so that the fixed plate can be driven by the working motor to slide along the outer wall of the sliding rod through the threads, so that the fixed plate can slide horizontally on both sides of the mold shell. The fixed plate is driven by the bidirectional threaded rod arranged inside, so that it can be compatible with injection molds of different sizes during work.

[0017] 2. The utility model embeds the heat dissipation copper tube inside the fixed plate, and processes the side of the heat dissipation copper tube close to the mold shell into a flat surface, so that the heat dissipation copper tube and the mold shell fit more closely, and connects the two ends of the oil outlet hose and the oil return hose to the liquid cooling device and the heat dissipation copper tube to achieve coolant reflux, so that the coolant also takes away the heat on the surface of the heat dissipation copper tube, and the outer wall of the heat dissipation copper tube fits with the surface of the injection mold to dissipate heat for the injection mold, thereby avoiding the increase of internal stress of the product due to uneven cooling under natural heat dissipation, which affects its strength and durability.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a partial side view of the three-dimensional structure of the bidirectional threaded rod of the utility model;

[0021] Figure 3 It is a schematic diagram of the partial structure of the bidirectional threaded rod of the utility model;

[0022] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the heat dissipation copper tube of the utility model.

[0023] In the figure: 1. work table; 2. work groove; 3. bidirectional threaded rod; 4. working motor; 5. mold table; 501, connecting block; 6. mold shell; 7. liquid cooling device; 8. driving block; 9. sliding rod; 10. fixing plate; 11. heat dissipation copper tube; 12. oil outlet hose; 13. oil return hose. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-4As shown, the utility model provides a technical solution: an injection mold cooling device, comprising a work table 1, a working groove 2 is opened in the center of the upper surface of the work table 1, two ends of the inner wall of the working groove 2 are rotatably connected with a bidirectional threaded rod 3, and one section of the outer wall of the bidirectional threaded rod 3 passes through the center of the inner wall of the working groove 2 and is fixedly connected to a working motor 4, a mold table 5 is passed through the center of the outer wall of the bidirectional threaded rod 3 and is rotatably connected, and a mold shell 6 is fixedly connected to the top surface of the mold table 5, and a group of liquid cooling devices 7 are fixedly connected to the bottom surface of the working groove 2 near both sides, and the liquid cooling devices 7 are located on both sides of the mold table 5.

[0026] like Figure 1-3 As shown, the output end of the working motor 4 passes through one end of the outer wall of the working table 1 and is fixedly connected to one end of the two-way threaded rod 3, and the outer wall of the two-way threaded rod 3 is penetrated by threads near both ends and is rotatably connected with a driving block 8, and the driving block 8 is slidably connected to the two ends of the working groove 2 through the two-way threaded rod 3, and a group of corresponding connecting blocks 501 are fixedly connected on both sides of the bottom of the mold table 5, and a sliding rod 9 is penetrated and fixedly connected to the inner center of the connecting block 501, and the outer wall of the sliding rod 9 is inserted into the bottom end of the driving block 8 near both ends and is slidably connected thereto, and the sliding rod 9 is located on both sides of the two-way threaded rod 3, and a fixing plate 10 is fixedly connected to one side of the upper surface of the driving block 8, and the fixing plate 10 is L-shaped as a whole, and the fixing plate 10 is located on both sides of the mold shell 6, and the fixing plate 10 is slidably connected to both sides of the mold shell 6 through the two-way threaded rod 3 and the sliding rod 9.

[0027] After the mold shell 6 is placed on the surface of the mold table 5, the working motor 4 is driven to drive the bidirectional threaded rod 3 to rotate inside the working groove 2 and on both sides of the mold table 5. When the bidirectional threaded rod 3 rotates, the threads in opposite directions at both ends of the outer wall can drive the corresponding fixed plates 10 at both ends to move inward or outward together. At the same time, a group of sliding rods 9 are inserted into the bottom end of the driving block 8, so that the driving block 8 can drive the top fixed plate 10 to move more stably, and by fixing the fixed plate 10 on both sides of the mold shell 6 through the top surface of the driving block 8, the fixed plate 10 can be driven by the working motor 4. The bidirectional threaded rod 3 slides along the outer wall of the sliding rod 9 through the threads, so that the fixed plate 10 can slide horizontally oppositely on both sides of the mold shell 6, so that the device drives the fixed plate 10 through the bidirectional threaded rod 3 arranged inside, so that it can be compatible with injection molds of different sizes during work.

[0028] like Figure 1 and Figure 4 As shown, a heat dissipation copper tube 11 is embedded inside the outer wall of the fixed plate 10 close to the mold table 5, and the heat dissipation copper tube 11 is roughly U-shaped as a whole. An oil outlet hose 12 is fixedly connected to the top end of the heat dissipation copper tube 11, and the bottom end of the oil outlet hose 12 is fixedly connected to the outer wall of one end of the liquid cooling device 7. An oil return hose 13 is fixedly connected to the end of the liquid cooling device 7 away from the oil outlet hose 12, and the top end of the oil return hose 13 is fixedly connected to the bottom end of the heat dissipation copper tube 11.

[0029] By embedding the heat dissipation copper tube 11 inside the fixed plate 10 and processing the side of the heat dissipation copper tube 11 close to the mold shell 6 into a flat surface, the heat dissipation copper tube 11 and the mold shell 6 are more closely fitted, and the two ends of the oil outlet hose 12 and the oil return hose 13 are connected to the liquid cooling device 7 and the heat dissipation copper tube 11 to achieve coolant reflux, so that the coolant also takes away the heat on the surface of the heat dissipation copper tube 11, and the outer wall of the heat dissipation copper tube 11 fits with the surface of the injection mold, so that the device uses its own structure to dissipate heat for the injection mold, thereby avoiding the increase of internal stress of the product due to uneven cooling under natural heat dissipation, which affects its strength and durability.

[0030] Working principle: After placing the mold shell 6 on the surface of the mold table 5, drive the working motor 4 to drive the bidirectional threaded rod 3 to rotate inside the working groove 2 and on both sides of the mold table 5. When the bidirectional threaded rod 3 rotates, the threads in opposite directions at both ends of the outer wall can drive the corresponding fixed plates 10 at both ends to move inward or outward together. By embedding the heat dissipation copper tube 11 inside the fixed plate 10 and processing the heat dissipation copper tube 11 into a plane on the side close to the mold shell 6, the heat dissipation copper tube 11 and the mold shell 6 are more closely fitted, and the two ends of the oil outlet hose 12 and the oil return hose 13 are connected to the liquid cooling device 7 and the heat dissipation copper tube 11 to realize the reflux of the coolant, so that the coolant also takes away the heat from the surface of the heat dissipation copper tube 11, and the outer wall of the heat dissipation copper tube 11 fits with the surface of the injection mold, so that the device uses its own structure to dissipate heat from the injection mold.

[0031] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold cooling device, comprising a work table (1), characterized in that: A working groove (2) is provided at the center of the upper surface of the working table (1); two ends of the inner wall of the working groove (2) are rotatably connected to bidirectional threaded rods (3); one section of the outer wall of the bidirectional threaded rod (3) passes through the center of the inner wall of the working groove (2) and is fixedly connected to a working motor (4); a mold table (5) is passed through the center of the outer wall of the bidirectional threaded rod (3) and is rotatably connected; a mold shell (6) is fixedly connected to the top surface of the mold table (5); a group of liquid cooling devices (7) are fixedly connected to the bottom surface of the working groove (2) near both sides, and the liquid cooling devices (7) are located on both sides of the mold table (5).

2. The injection mold cooling device according to claim 1, characterized in that: The output end of the working motor (4) passes through the top of the outer wall of the working table (1) and is fixedly connected to one end of the bidirectional threaded rod (3), and a driving block (8) is penetrated by threads near both ends of the outer wall of the bidirectional threaded rod (3) and is rotatably connected, and the driving block (8) is slidably connected to the two ends of the working groove (2) through the bidirectional threaded rod (3).

3. The injection mold cooling device according to claim 1, characterized in that: A group of corresponding connecting blocks (501) are fixedly connected to both sides of the bottom of the mold table (5), and a sliding rod (9) passes through and is fixedly connected to the inner center of the connecting block (501). The outer wall of the sliding rod (9) is inserted into the bottom end of the driving block (8) near both ends and is slidably connected thereto, and the sliding rod (9) is located on both sides of the bidirectional threaded rod (3).

4. The injection mold cooling device according to claim 2, characterized in that: A fixing plate (10) is fixedly connected to one side of the upper surface of the driving block (8), and the fixing plate (10) is L-shaped as a whole. The fixing plate (10) is located on both sides of the mold shell (6), and the fixing plate (10) is slidably connected to both sides of the mold shell (6) through a bidirectional threaded rod (3) and a sliding rod (9).

5. The injection mold cooling device according to claim 4, characterized in that: A heat dissipation copper tube (11) is embedded in the inner part of the outer wall of the fixing plate (10) close to the mold platform (5), and the heat dissipation copper tube (11) is generally U-shaped as a whole.

6. The injection mold cooling device according to claim 5, characterized in that: One end of the top of the heat dissipation copper tube (11) is fixedly connected to an oil outlet hose (12), and one end of the bottom of the oil outlet hose (12) is fixedly connected to the outer wall of one end of the liquid cooling device (7).

7. The injection mold cooling device according to claim 6, characterized in that: The end of the liquid cooling device (7) away from the oil outlet hose (12) is fixedly connected to an oil return hose (13), and the top end of the oil return hose (13) is fixedly connected to the bottom end of the heat dissipation copper tube (11).

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