Filter screen assembly machining device

Abstract

The utility model discloses a filter screen component processing device, which comprises a fixed mold and a movable mold, an injection molding groove is formed on the opposite surfaces of the fixed mold and the movable mold, and an injection molding hole communicated with the injection molding groove is formed on the fixed mold or the movable mold; the buffer assembly is arranged on the fixed die and is provided with a buffer stress part which extends out in a normal state and retracts back to the involution surface of the fixed die when being extruded, and the buffer stress part is provided with a double-sided adhesive tape for sticking the filter screen body. According to the utility model, the buffer component is arranged on the fixed mold, so that the movable mold can be buffered when the movable mold is assembled to the fixed mold; and meanwhile, the double-faced adhesive tape is arranged on the buffering stress part of the buffering assembly, so that the impact and damage of the movable mold to the double-faced adhesive tape during mold closing can be effectively reduced, the frequency of replacing the double-faced adhesive tape is greatly reduced, the production efficiency is guaranteed, and meanwhile, the raw material overhead and the labor cost are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to device processing machinery, and specifically relates to a filter screen component processing device. Background Art

[0002] Filter components are widely used in many fields. For example, various fluids such as air and water need to be filtered when performing or completing certain functions to intercept impurities and purify the fluid.

[0003] The filter assembly is generally composed of a filter frame and a filter body arranged on the filter frame. The filter body is used to perform filtering operations, and the filter frame is used to support the filter body and form it into a predetermined shape for easy assembly and disassembly. When processing the filter assembly, the filter coil is usually unfolded and cut into a filter body of a preset size, and then the filter body is placed in an injection mold, and then a filter frame that is tightly combined with the filter body is formed in the injection mold by injection molding, and then the semi-finished filter assembly is taken out, and the scraps are trimmed to finally form a finished filter assembly.

[0004] Figure 1 The filter body 91 is cut to a preset size. Figure 2 The figure shows a filter assembly 90 in which a filter frame 92 is formed on a filter body 91 by injection molding. The filter assembly 90 is specifically a filter assembly used on air-conditioning fans and tower fans. Of course, various filter assemblies can be formed according to the different shapes, structures and sizes of the filter frames.

[0005] in addition, Figure 3 The fixed mold 10 of the existing injection mold, Figure 4 The movable mold 20 of the existing injection mold. Among them, the mating surface 11 of the fixed mold 10 is provided with an injection groove 12, and the mating surface 21 of the movable mold 20 is correspondingly provided with an injection groove 22. The correspondingly provided injection grooves 12 and injection grooves 22 are used to form a filter frame during injection molding. Of course, it is not excluded that only the mating surface 11 of the fixed mold 10 or the mating surface 21 of the movable mold 20 is provided with an injection groove. In addition, the fixed mold 10 or the movable mold 20 is provided with an injection hole 15 connected with the injection groove, which is used to inject molten plastic or other materials into the injection groove after the mold is closed. Figure 3 The fixed mold 10 and Figure 4 The movable mold 20 shown has four groups of injection molding grooves, that is, four filter screen frames can be formed by performing one injection molding process.

[0006] Among them, the filter body 91 is sandwiched between the mating surface 11 of the fixed mold 10 and the mating surface 21 of the movable mold 20 during mold closing. Since the filter body is a thin mesh structure, if it is directly placed on the mating surface 11 of the fixed mold 10, it will be misaligned due to the lack of a positioning structure, resulting in defective products during mold closing and injection molding; based on this, the positioning method adopted in the prior art is: a thin layer of double-sided adhesive 16 is attached to the mating surface 11 of the fixed mold 10, so that the filter body 91 placed on the double-sided adhesive 16 can adhere to the mating surface 11 of the fixed mold 10, thereby avoiding the misalignment of the filter body 91, so that the filter assembly can be smoothly injected.

[0007] However, in the process of continuous mold opening and closing of the injection mold, the double-sided tape is constantly squeezed by the passive mold and the fixed mold, and will soon become loose and less. Generally, the double-sided tape needs to be re-applied every thirty minutes or so, which seriously affects the production efficiency. Moreover, the broken pieces of double-sided tape are easy to fall into and stick to the injection molding groove, resulting in defective products in the injection-molded filter frame. Utility Model Content

[0008] The utility model aims to provide a filter assembly processing device, aiming to improve the buffering performance of the injection mold when the mold is closed. The utility model is realized by the following technical solutions:

[0009] A filter assembly processing device comprises a fixed mold and a movable mold with injection molding grooves formed on their mating surfaces, and an injection molding hole connected to the injection molding groove is opened on the fixed mold or the movable mold; it is characterized in that it also includes a buffer assembly arranged on the fixed mold, and the buffer assembly has a buffer force-bearing part that extends out under normal conditions and retracts into the mating surface of the fixed mold when squeezed, and the buffer force-bearing part is provided with a double-sided adhesive sticker for sticking the filter body.

[0010] As a preferred technical solution, the mating surface of the fixed mold is provided with an assembly groove inwardly, and the buffer component is elastically and telescopically assembled in the assembly groove.

[0011] As a preferred technical solution, the buffer assembly includes a buffer block, an elastic member and a limit screw, the buffer block is arranged in the assembly groove through the limit screw, and the buffer block has a preset active stroke along the limit screw; the elastic member is arranged in the assembly groove, and applies a force to the buffer block to extend the buffer force-bearing portion out of the assembly groove.

[0012] As a preferred technical solution, the limit screw includes a nut portion, a threaded portion and a guide portion located between the nut portion and the threaded portion; a step hole that becomes thinner from the front to the back is opened on the buffer block; the nut portion fits in the coarse hole of the step hole, the guide portion fits in the fine hole of the step hole, and the threaded portion is threadedly fitted with the bottom wall of the assembly groove.

[0013] As a preferred technical solution, the elastic member is a compression spring, one end of which abuts against the back side of the buffer block, and the other end of which abuts against the bottom wall of the assembly groove.

[0014] As a preferred technical solution, the compression spring is sleeved on the limit screw or arranged on the side of the limit screw.

[0015] As a preferred technical solution, an assembly groove penetrating the front and back sides is provided on the fixed mold, and a limiting flange is provided at the front opening of the assembly groove; the buffer assembly includes a buffer block and an elastic member; the buffer block is assembled in the assembly groove through the back opening of the assembly groove, and the front side of the buffer block is provided with the buffer force-bearing portion capable of extending out of the front opening of the assembly groove and a shoulder stopped by the limiting flange; the elastic member is arranged in the assembly groove, and applies a force to the buffer block to extend out of the front opening of the assembly groove.

[0016] As a preferred technical solution, the buffer assembly further includes a cover plate that blocks the back opening of the assembly groove.

[0017] As a preferred technical solution, the elastic member is a compression spring, one end of which abuts against the buffer block and the other end of which abuts against the cover plate.

[0018] As a preferred technical solution, the buffer assembly also includes a guide rod fixedly arranged on the inner side of the cover plate, and a guide hole cooperating with the guide rod is opened inwardly on the back side of the buffer block, and the compression spring is sleeved on the guide rod.

[0019] The filter assembly processing device provided by the above technical scheme of the utility model can provide a buffer when the movable mold is closed to the fixed mold by arranging a buffer assembly on the fixed mold; at the same time, by arranging the double-sided tape on the buffer force-bearing part of the buffer assembly, the impact and damage of the movable mold on the double-sided tape during mold closing can be effectively reduced, and the frequency of replacing the double-sided tape is greatly reduced, thereby ensuring production efficiency and saving raw material expenses and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a stereoscopic view of an existing exemplary filter body.

[0021] Figure 2 A perspective view of an exemplary existing filter assembly.

[0022] Figure 3 A three-dimensional view of a fixed mold in an existing filter assembly injection molding mold.

[0023] Figure 4 The present invention is a stereoscopic diagram of a movable mold in an existing filter assembly injection molding mold.

[0024] Figure 5 This is an exploded view of the fixed mold and buffer assembly in the filter assembly processing device provided in Example 1 of the present utility model.

[0025] Figure 6 This is a perspective structural diagram of a buffer assembly in the filter assembly processing device provided in Example 1 of the present utility model.

[0026] Figure 7 A structural principle diagram of the relevant parts of the buffer assembly disposed on the fixed mold in the filter assembly processing device provided in the first embodiment of the utility model.

[0027] Figure 8 An assembly principle diagram of a buffer assembly disposed on a fixed mold in a filter assembly processing device provided in Embodiment 2 of the present utility model.

[0028] Fig. 9 An assembly principle diagram of a buffer assembly disposed on a fixed mold in a filter assembly processing device provided in Embodiment 3 of the present utility model.

[0029] Fig.10 An assembly schematic diagram of a filter assembly processing device provided in Embodiment 4 of the present utility model, in which a buffer assembly is arranged on a fixed mold.

[0030] Description of the accompanying drawings: 90-filter assembly, 91-filter body, 92-filter frame, 10-fixed mold, 20-movable mold, 30-buffer assembly, 11-matching surface, 12-injection groove, 21-matching surface, 22-injection groove, 15-injection hole, 16-double-sided adhesive tape, 17-assembly groove, 18-assembly groove, 181-limiting flange, 301-buffer force-bearing part, 302-step hole, 303-shoulder, 31-buffer block, 315-guide hole, 32-elastic member, 33-limiting screw, 331-nut part, 332-screwed part, 333-guide part, 34-cover plate, 35-guide rod. DETAILED DESCRIPTION

[0031] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0032] In the description of the present utility model, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise", "front", "back", etc., indicating directions or positional relationships, are based on the directions or relative positional relationships shown in the accompanying drawings, and are intended to facilitate a clear description of the structure of the product or device, and are not used to limit the actual directions of the product or device during production, use, sales, etc.

[0033] In addition, the terms "first" and "second" are only used for the purpose of distinction in the description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "set", "fix", "assemble" and the like 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 according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] Embodiment 1

[0037] Combination Figure 5 As shown, the first embodiment provides a filter assembly processing device, including a fixed mold 10, a movable mold 20 (combined Figure 4The fixed mold 10 and the movable mold 20 cooperate with each other in a split mold and a closed mold manner, and the mating surfaces of the fixed mold 10 and the movable mold 20 are formed with injection molding grooves; when the mold is closed, the filter body 91 (combined with the filter assembly 90) Figure 1 As shown in FIG. 1 ) is sandwiched between the mating surfaces of the fixed mold 10 and the movable mold 20, and the injection molding groove is used to form the filter frame 92 (combined with the filter frame 92 of the filter assembly 90) by injection molding. Figure 2 shown).

[0038] The fixed mold 10 has an injection groove 12 on its mating surface 11, and the movable mold 20 has an injection groove 22 on its mating surface 21 (combined with the injection groove 22 of the movable mold 20). Figure 4 As shown in FIG. 1 , the correspondingly arranged injection grooves 12 and 22 are used to form the filter screen frame during injection molding. Of course, it is not excluded that the injection grooves are only provided on the mating surface 11 of the fixed mold 10 or the mating surface 21 of the movable mold 20. In addition, the fixed mold 10 is provided with an injection hole 15 connected to the injection groove, which is used to inject molten plastic or other materials into the injection groove after the mold is closed. Figure 5 The fixed mold 10 and Figure 4 The movable mold 20 shown has four groups of injection molding grooves, that is, four filter frames 92 can be formed in one injection molding process.

[0039] See also Figure 5 , Figure 6 and Figure 7 As shown, the buffer assembly 30 is arranged on the fixed mold 10, and the buffer assembly 30 has a buffer force-bearing portion 301 that extends out of the mating surface 11 of the fixed mold 10 under normal conditions and retracts into the mating surface 11 of the fixed mold 10 when squeezed, and a double-sided adhesive tape 16 for sticking the filter body 91 is arranged on the buffer force-bearing portion 301. Specifically, on the mating surface 11 of the fixed mold 10, avoiding the position of the injection groove 12, an assembly groove 17 is opened inward, and the buffer assembly 30 is elastically and telescopically assembled in the assembly groove 17.

[0040] Continue to see Figure 5 , Figure 6 and Figure 7 The buffer assembly 30 includes a buffer block 31, an elastic member 32 and a limit screw 33. The buffer block 31 is set in the assembly groove 17 through the limit screw 33, and the buffer block 31 has a preset active stroke (i.e., a buffer stroke) along the limit screw 33; the elastic member 32 is set in the assembly groove 17 and applies an outward force to the buffer block 31, that is, applies a force to push the buffer force-bearing portion 31 out of the front opening of the assembly groove 17.

[0041] Combination Figure 7As shown, the limit screw 33 includes a nut portion 331, a threaded portion 332 and a guide portion 333 located between the nut portion and the threaded portion; a step hole 302 which becomes thinner from the front to the back is opened on the buffer block 31; the nut portion 331 is matched in the coarse hole of the step hole 302, the guide portion 333 is matched in the fine hole of the step hole 302, and the threaded portion 33 is threadedly matched with the bottom wall of the assembly groove 17; in this embodiment, two groups of such assembly structures are provided.

[0042] More specifically, in this embodiment, the elastic member 32 is a compression spring, one end of which abuts against the buffer block 31, and the other end abuts against the bottom wall of the assembly groove 17. In addition, it is arranged outside the limit screw 33; or, the compression spring is sleeved on the limit screw 33.

[0043] The use process of the filter assembly processing device provided in the above embodiment is described as follows:

[0044] 1. First, a layer of double-sided adhesive tape 16 is attached to the buffer force-bearing portion 301 of the spring block assembly 30 of the fixed mold 10.

[0045] 2. The robot (or manipulator) grabs the filter body 91 and sticks it on the double-sided adhesive tape 16 .

[0046] 3. Since the buffer force-bearing portion 301 of the buffer assembly 30 normally extends out of the mating surface 11 of the fixed mold 10, in the mold separation state, the buffer force-bearing portion 301, the double-sided adhesive tape 16 and the filter body 91 are slightly higher than the mating surface of the fixed mold 10.

[0047] 4. When the movable mold 20 is molded onto the fixed mold 10, the mating surface 21 of the movable mold 20 will first contact the filter body 91; at this time, due to the buffering effect of the spring block assembly 30, the buffer force-bearing part 301 and the double-sided tape 16 are squeezed and retracted to the mating surface 11 of the fixed mold 10. Since the filter body 91 and the double-sided tape 16 have a certain thickness, after the mold is closed, the buffer force-bearing part 301 of the buffer assembly 30 will be slightly lower than the mating surface 11 of the fixed mold 10. At this time, the buffer force-bearing part 301, the double-sided tape 16 and the filter body 91 are only subjected to the reaction force of the elastic member 32. This force is relatively small, the degree of squeezing of the double-sided tape 16 is small, and the loss of the double-sided tape 16 is small, which greatly reduces the frequency of replacing the double-sided tape, ensures production efficiency, and saves raw material expenses and labor costs.

[0048] Embodiment 2

[0049] Combination Figure 8 As shown, the filter assembly processing device provided in the second embodiment is different from the first embodiment in that no limit screw is provided, and the buffer block 31 is directly connected to the bottom wall of the assembly groove 17 by the connecting member 32 of the compression spring.

[0050] Embodiment 3

[0051] Combination Fig. 9 As shown, the filter assembly processing device provided in Example 3 is different from Example 1 or Example 2 in that: an assembly groove 18 penetrating the front and back sides is opened on the fixed mold 10, and a limiting flange 181 is provided at the front opening of the assembly groove 18; the buffer assembly 30 includes a buffer block 31 and an elastic member 32; the buffer block 31 is assembled in the assembly groove 18 through the back opening of the assembly groove 18, and the front of the buffer block 31 is provided with a buffer force-bearing portion 301 capable of extending out of the front opening of the assembly groove 18 and a shoulder 303 stopped at the limiting flange 181; the elastic member is arranged in the assembly groove 18, and applies a force to the buffer block 31 to extend out of the front opening of the assembly groove 18.

[0052] In this embodiment, the buffer assembly further includes a cover plate 34, which blocks the back opening of the assembly slot. Moreover, the elastic member 32 in this embodiment is a compression spring, one end of which abuts against the buffer block 31, and the other end abuts against the cover plate 34. Of course, the elastic member 32 can also be a spring, one end of which abuts against the buffer block 31, and the other end is arranged on the side wall of the assembly slot 18.

[0053] Embodiment 4

[0054] Combination Fig.10 As shown, the filter assembly processing device provided in Example 4 is different from that in Example 3 in that the buffer assembly 30 also includes a guide rod 35, which is fixedly arranged on the inner side of the cover plate 34, and a guide hole 315 cooperating with the guide rod is opened inward on the back side of the buffer block 31, and an elastic member 32 in the form of a compression spring is sleeved on the guide rod 35.

[0055] The above embodiments are only intended to fully disclose but not limit the present invention. Any replacement of equivalent technical features based on the creative purpose of the present invention without creative labor should be regarded as the scope disclosed in this application.

Claims

1. A filter assembly processing device, comprising a fixed mold and a movable mold with injection grooves formed on the mating surfaces thereof, and an injection hole communicating with the injection grooves is opened on the fixed mold or the movable mold; characterized in that: It also includes a buffer component arranged on the fixed mold, the buffer component has a buffer force-bearing part that extends out under normal conditions and retracts into the fixed mold mating surface when squeezed, and the buffer force-bearing part is provided with a double-sided adhesive sticker for sticking the filter body.

2. The filter assembly processing device according to claim 1, characterized in that: The mating surface of the fixed mold is provided with an assembly groove inwardly, and the buffer component is elastically and telescopically assembled in the assembly groove.

3. The filter assembly processing device according to claim 2, characterized in that: The buffer assembly includes a buffer block, an elastic member and a limit screw. The buffer block is arranged in the assembly groove through the limit screw, and the buffer block has a preset movable stroke along the limit screw. The elastic member is arranged in the assembly groove and applies a force to the buffer block to extend the buffer force-bearing portion out of the assembly groove.

4. The filter assembly processing device according to claim 3, characterized in that: The limit screw includes a nut portion, a threaded portion, and a guide portion located between the nut portion and the threaded portion; the buffer block is provided with a step hole which becomes thinner from the front to the back; the nut portion is fitted in the coarse hole of the step hole, the guide portion is fitted in the fine hole of the step hole, and the threaded portion is threadedly fitted with the bottom wall of the assembly groove.

5. The filter assembly processing device according to claim 3 or 4, characterized in that: The elastic member is a compression spring, one end of which abuts against the back of the buffer block, and the other end of which abuts against the bottom wall of the assembly groove.

6. The filter assembly processing device according to claim 5, characterized in that: The compression spring is sleeved on the limit screw or arranged on the side of the limit screw.

7. The filter assembly processing device according to claim 1, characterized in that: The fixed mold is provided with an assembly groove which passes through the front and back sides, and a limiting flange is arranged at the front opening of the assembly groove; the buffer assembly comprises a buffer block and an elastic member; the buffer block is assembled in the assembly groove through the back opening of the assembly groove, and the front side of the buffer block is provided with the buffer force-bearing portion which can extend out of the front opening of the assembly groove and the shoulder portion which stops at the limiting flange; the elastic member is arranged in the assembly groove, and exerts a force on the buffer block to extend out of the front opening of the assembly groove.

8. The filter assembly processing device according to claim 7, characterized in that: The buffer assembly also includes a cover plate, which blocks the back opening of the assembly groove.

9. The filter assembly processing device according to claim 8, characterized in that: The elastic member is a compression spring, one end of which abuts against the buffer block, and the other end of which abuts against the cover plate.

10. The filter assembly processing device according to claim 9, characterized in that: The buffer assembly also includes a guide rod fixedly arranged on the inner side of the cover plate, a guide hole cooperating with the guide rod is opened inwardly on the back side of the buffer block, and the compression spring is sleeved on the guide rod.

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