Injection mold for filter screen in-mold molding

Abstract

The utility model relates to the technical field of injection molds, specifically to an injection mold for forming a filter in a mold, comprising an upper mold and a lower mold, the surface of the upper mold is provided with a heat dissipation device, the heat dissipation device comprises a screw, the screws are threadedly connected to the upper mold, the surface of the screws is threadedly connected with a heat sink, the surface of the upper mold is fixedly connected with a fixing frame, the surface of the fixing frame is slidably connected with a fixing plate, the surface of the fixing plate is fixedly connected with a U-shaped plate, the surface of the U-shaped plate is glued with an electrostatic woven cloth, and the surface of the fixing plate is fixedly connected with a handle. The utility model can dissipate heat from the upper mold by providing a heat dissipation device, thereby avoiding deformation, defects or incompleteness of plastic parts caused by excessive temperature of the upper mold, and dissipating heat from the upper mold by the heat sink, thereby effectively controlling the mold temperature, ensuring that the plastic material is fully cooled and solidified, thereby improving production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for in-mold molding of a filter screen. Background Art

[0002] The filter in-mold molding injection mold is a special injection mold, which is used to inject raw materials into the filter mold for molding during the injection molding process. This mold is usually made of high-strength alloy material and has the characteristics of wear resistance, corrosion resistance, and high temperature resistance. Its structural design is precise and can ensure the precise molding of filter products that meet the specification requirements.

[0003] The above-mentioned and existing related technologies often have the following defects: during the use of the injection mold, the temperature of the upper mold is usually higher than that of the lower mold. Excessively high temperature of the upper mold will cause deformation of the injection mold structure, resulting in decreased stability of the injection mold, causing deformation, defects or incompleteness of the plastic parts, and reducing the quality of injection molding.

[0004] Therefore, the utility model provides an injection mold for in-mold molding of a filter screen. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art that excessively high upper mold temperature may cause deformation of the injection mold structure, resulting in reduced stability of the injection mold, causing deformation, defects or incompleteness of plastic parts, and reducing the quality of injection molding, and proposes an injection mold for in-mold molding of a filter screen.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an injection mold for in-mold molding of a filter screen, comprising an upper mold and a lower mold, the surface of the upper mold is provided with a heat dissipation device, the heat dissipation device comprises a screw, the screws are threadedly connected to the upper mold, the surface of the screw is threadedly connected with a heat sink, and the surface of the upper mold is fixedly connected with a fixing frame.

[0007] The effect achieved by the above components is: by setting up a heat dissipation device, the upper mold can be cooled to avoid deformation, defects or incompleteness of the plastic parts caused by excessive temperature of the upper mold. The heat dissipation of the upper mold by the heat sink can effectively control the mold temperature and ensure that the plastic material is fully cooled and solidified, thereby improving production efficiency.

[0008] Preferably, a fixing plate is slidably connected to the surface of the fixing frame, a U-shaped plate is fixedly connected to the surface of the fixing plate, an electrostatically woven cloth is glued to the surface of the U-shaped plate, and a handle is fixedly connected to the surface of the fixing plate.

[0009] The effect achieved by the above components is: the movement of the fixed plate will drive the electrostatic textile cloth to slide along the surface of the heat sink. The electrostatic textile cloth can absorb and clean the dust particles attached to the surface of the heat sink. By regularly cleaning the heat sink, the heat sink can be kept clean, the heat dissipation efficiency of the heat sink can be improved, and the upper mold can be effectively prevented from overheating.

[0010] Preferably, an iron block is fixedly connected to the inner wall of the fixing frame, and a magnet is fixedly connected to the surface of the fixing plate.

[0011] The effect achieved by the above components is: the magnet on the fixed plate is out of contact with the iron block, the fixed plate slides along the surface of the fixed frame, the magnet and the iron block can fix the position of the fixed plate, and prevent the upper and lower dies from driving the fixed plate to move during use.

[0012] Preferably, a guide plate is fixedly connected to the surface of the upper mold.

[0013] The effect achieved by the above components is: the heat sink is slid along the surface of the guide plate, and the guide plate starts the guiding function, so that the heat sink can be installed quickly and conveniently, so that the screw can be quickly turned to fix it.

[0014] Preferably, a dustproof device is provided on the surface of the upper mold, and the dustproof device includes a fixing bar, which is fixedly connected to the upper mold, and a dustproof plate is slidably connected to the surface of the fixing bar, and a limiting plate is fixedly connected to the surface of the fixing bar, and the surface of the dustproof plate slides through a limiting rod, and the limiting rod is slidably connected to the limiting plate.

[0015] The effect achieved by the above components is: by setting up the dustproof device, when the injection mold is being repaired, the dustproof device can effectively prevent dust and other particles from entering the upper mold, effectively ensure the normal operation of the injection mold, and improve the quality of the product.

[0016] Preferably, the arc surface of the limiting rod is sleeved with a spring, and two ends of the spring are respectively fixedly connected to the dustproof plate and the limiting rod.

[0017] The effect achieved by the above components is: loosen the limit rod, at this time the spring begins to drive the limit rod to slide with its own elastic force, the limit rod will be inserted into the slot, the spring can automatically reset the limit rod, and at the same time can fix the position of the limit rod to prevent the limit rod from being out of contact with the dustproof plate.

[0018] Preferably, a slot is provided on the surface of the upper die, and the limiting rod is slidably connected to the inner wall of the slot.

[0019] The effect achieved by the above components is that the card slot can fix the position of the dustproof plate with the help of the limiting rod.

[0020] In summary:

[0021] 1. In the utility model, by providing a heat dissipation device, the upper mold can be cooled to avoid deformation, defects or incompleteness of the plastic parts caused by excessive temperature of the upper mold. The heat dissipation of the upper mold by the heat sink can effectively control the mold temperature and ensure that the plastic material is fully cooled and solidified, thereby improving production efficiency.

[0022] 2. In the utility model, by providing a dustproof device, when the injection mold is being inspected and repaired, the dustproof device can effectively prevent dust and other particles from entering the interior of the upper mold, effectively ensuring the normal operation of the injection mold and improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the dustproof plate of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the heat sink of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the iron block of the utility model;

[0027] Figure 5 For the utility model Figure 4 A magnified image of point A;

[0028] Figure 6 It is a schematic structural diagram of the dustproof device of the utility model.

[0029] Legend: 1. Upper mold; 2. Lower mold; 3. Heat dissipation device; 301. Screw; 302. Heat sink; 303. Guide plate; 304. Fixing frame; 305. Fixing plate; 306. Handle; 307. U-shaped plate; 308. Electrostatically woven fabric; 309. Iron block; 310. Magnet; 4. Dustproof device; 41. Fixing strip; 42. Dustproof plate; 43. Slot; 44. Limiting plate; 45. Limiting rod; 46. Spring. DETAILED DESCRIPTION

[0030] Reference Figure 1As shown, the utility model provides a technical solution: an injection mold for in-mold molding of a filter screen, comprising an upper mold 1 and a lower mold 2, a heat sink 3 is provided on the surface of the upper mold 1, the heat sink 3 comprises a screw 301, the screw 301 is threadedly connected to the upper mold 1, a heat sink 302 is threadedly connected to the surface of the screw 301, and a fixing frame 304 is fixedly connected to the surface of the upper mold 1. By providing the heat sink 3, the upper mold 1 can be cooled to avoid deformation, defects or incompleteness of the plastic part caused by excessive temperature of the upper mold 1. The heat sink 302 is used to cool the upper mold 1, which can effectively control the mold temperature and ensure the plastic The material is fully cooled and solidified, thereby improving the production efficiency. A dustproof device 4 is provided on the surface of the upper mold 1. The dustproof device 4 includes a fixed bar 41, which is fixedly connected to the upper mold 1. The surface of the fixed bar 41 is slidably connected with a dustproof plate 42. The surface of the fixed bar 41 is fixedly connected to a limiting plate 44. The surface of the dustproof plate 42 slides through a limiting rod 45. The limiting rod 45 is slidably connected to the limiting plate 44. By setting the dustproof device 4, when the injection mold is inspected and repaired, the dustproof device 4 can effectively prevent dust and other particles from entering the interior of the upper mold 1, effectively ensure the normal operation of the injection mold, and improve the quality of the product.

[0031] The specific configuration and function of the heat dissipation device 3 and the dust prevention device 4 will be described in detail below.

[0032] Reference Figure 3 and Figure 4 as well as Figure 5 As shown, in this embodiment: the surface of the fixing frame 304 is slidably connected with a fixing plate 305, the surface of the fixing plate 305 is fixedly connected with a U-shaped plate 307, the surface of the U-shaped plate 307 is glued with an electrostatic woven cloth 308, and the surface of the fixing plate 305 is fixedly connected with a handle 306. The movement of the fixing plate 305 will drive the electrostatic woven cloth 308 to slide along the surface of the heat sink 302, and the electrostatic woven cloth 308 can absorb and clean the dust particles attached to the surface of the heat sink 302. By regularly cleaning the heat sink 302, the heat sink 302 can be kept clean, the heat dissipation efficiency of the heat sink 302 can be improved, and the upper mold 1 can be effectively prevented from overheating. The fixing frame 304 An iron block 309 is fixedly connected to the inner wall, and a magnet 310 is fixedly connected to the surface of the fixed plate 305. The magnet 310 on the fixed plate 305 is out of contact with the iron block 309, and the fixed plate 305 slides along the surface of the fixed frame 304. The magnet 310 and the iron block 309 can fix the position of the fixed plate 305 to prevent the upper mold 1 and the lower mold 2 from moving the fixed plate 305 during use. A guide plate 303 is fixedly connected to the surface of the upper mold 1, and the heat sink 302 is slid along the surface of the guide plate 303. The guide plate 303 starts to guide, which facilitates the rapid installation of the heat sink 302, so that the screw 301 can be quickly rotated for fixing.

[0033] Reference Figure 2 and Figure 6 As shown, specifically, the arc surface of the limit rod 45 is sleeved with a spring 46, and the two ends of the spring 46 are fixedly connected to the dustproof plate 42 and the limit rod 45 respectively. When the limit rod 45 is loosened, the spring 46 begins to drive the limit rod 45 to slide with its own elastic force, and the limit rod 45 will be inserted into the slot 43. The spring 46 can achieve the effect of automatically resetting the limit rod 45, and at the same time, it can fix the position of the limit rod 45 to prevent the limit rod 45 from losing contact with the dustproof plate 42. A slot 43 is provided on the surface of the upper mold 1, and the limit rod 45 is slidably connected to the inner wall of the slot 43. The slot 43 can use the limit rod 45 to fix the position of the dustproof plate 42.

[0034] Working principle: To produce filter products, the molten plastic material needs to be injected into the mold through the injection molding process to form the filter products in the mold. During the injection molding process, the molten plastic particles are heated and melted, and then injected into the mold cavity for molding. During this process, the upper mold 1 is usually heated to a higher temperature to accelerate the melting and filling of the plastic. First, the heat sink 302 is slid along the surface of the guide plate 303 to make the heat sink 302 fit tightly on the upper mold 1. Then, with the help of the screw 301, the screw 301 is rotated. The screw 301 moves with the help of the heat sink 302 and the threads in the upper mold 1, so that the heat sink 302 can be firmly installed on the surface of the upper mold 1. The guide plate 303 starts the guiding function, which facilitates the rapid installation of the heat sink 302, so that the screw 301 can be quickly rotated to fix it. At this time, the heat generated on the surface of the upper mold 1 will be dissipated with the help of the heat sink 302, thereby accelerating the cooling effect of the upper mold 1. When the heat sink 302 is used for a long time, dust will adhere to the surface of the heat sink 302. At this time, the heat sink 302 needs to be cleaned. First, pull it away from the heat sink 302. The handle 306 is pulled in the direction of the lower mold 2, and the handle 306 drives the fixed plate 305 to move. At this time, the magnet 310 on the fixed plate 305 is out of contact with the iron block 309, and the fixed plate 305 slides along the surface of the fixed frame 304. The magnet 310 and the iron block 309 can fix the position of the fixed plate 305 to prevent the upper mold 1 and the lower mold 2 from driving the fixed plate 305 to move during use. The movement of the fixed plate 305 drives the electrostatic textile cloth 308 to slide along the surface of the heat sink 302, and the electrostatic textile cloth 308 can The dust particles attached to the surface of the heat sink 302 can be adsorbed and cleaned. By regularly cleaning the heat sink 302, the heat sink 302 can be kept clean, the heat dissipation efficiency of the heat sink 302 can be improved, and the overheating of the upper mold 1 can be effectively prevented. By setting the heat dissipation device 3, the upper mold 1 can be cooled to avoid deformation, defects or incompleteness of the plastic parts caused by excessive temperature of the upper mold 1. The heat dissipation of the upper mold 1 by the heat sink 302 can effectively control the mold temperature and ensure that the plastic material is fully cooled and solidified, thereby improving production efficiency.

[0035] When the injection mold is used for a long time, it is necessary to regularly inspect and repair the injection mold. The dustproof device 4 is needed during inspection. First, the limit rod 45 is pulled away from the limit plate 44, and the limit rod 45 slides along the surface of the dustproof plate 42, so that the limit rod 45 is out of contact with the limit plate 44. At this time, the dustproof plate 42 is pushed toward the cavity of the upper mold 1, and the dustproof plate 42 slides along the surface of the fixing strip 41. When the limit rod 45 and the card slot 43 are at the same horizontal position, the limit rod 45 is released. At this time, the spring 46 begins to drive the limit rod 45 to slide with its own elastic force, and the limit rod 45 will be inserted The dustproof plate 42 is inserted into the card slot 43. When the dustproof plate 42 is in use, the card slot 43 can use the limit rod 45 to fix the position of the dustproof plate 42. The spring 46 can automatically reset the limit rod 45 and fix the position of the limit rod 45 to avoid the limit rod 45 and the dustproof plate 42 from being out of contact. The dustproof plate 42 will rest on the surface of the upper mold 1. By setting the dustproof device 4, when the injection mold is being inspected and repaired, the dustproof device 4 can effectively prevent dust and other particles from entering the interior of the upper mold 1, effectively ensuring the normal operation of the injection mold and improving the quality of the product.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. An injection mold for in-mold molding of a filter screen, comprising an upper mold (1) and a lower mold (2), wherein a heat dissipation device (3) is provided on the surface of the upper mold (1), characterized in that: The heat dissipation device (3) comprises a screw (301), each of the screws (301) being threadedly connected to the upper mold (1), a heat sink (302) being threadedly connected to the surface of the screw (301), and a fixing frame (304) being fixedly connected to the surface of the upper mold (1).

2. The filter screen in-mold injection mold according to claim 1, characterized in that: The surface of the fixing frame (304) is slidably connected to a fixing plate (305), the surface of the fixing plate (305) is fixedly connected to a U-shaped plate (307), the surface of the U-shaped plate (307) is glued with an electrostatically woven cloth (308), and the surface of the fixing plate (305) is fixedly connected to a handle (306).

3. The filter screen in-mold injection mold according to claim 2, characterized in that: An iron block (309) is fixedly connected to the inner wall of the fixing frame (304), and a magnet (310) is fixedly connected to the surface of the fixing plate (305).

4. The filter screen in-mold injection mold according to claim 1, characterized in that: A guide plate (303) is fixedly connected to the surface of the upper mold (1).

5. The filter screen in-mold injection mold according to claim 1, characterized in that: The surface of the upper mold (1) is provided with a dustproof device (4), and the dustproof device (4) includes a fixing strip (41), the fixing strip (41) is fixedly connected to the upper mold (1), the surface of the fixing strip (41) is slidably connected with a dustproof plate (42), the surface of the fixing strip (41) is fixedly connected with a limiting plate (44), the surface of the dustproof plate (42) slides through a limiting rod (45), and the limiting rod (45) is slidably connected to the limiting plate (44).

6. The filter screen in-mold injection mold according to claim 5, characterized in that: The arc surface of the limiting rod (45) is sleeved with a spring (46), and the two ends of the spring (46) are respectively fixedly connected to the dustproof plate (42) and the limiting rod (45).

7. The filter screen in-mold injection mold according to claim 5, characterized in that: A clamping groove (43) is provided on the surface of the upper mold (1), and the limiting rod (45) is slidably connected to the inner wall of the clamping groove (43).

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