Fixing device for plastic part spraying

Abstract

The utility model relates to the technical field of plastic parts, in particular to a fixing device for plastic part spraying, which comprises a positioning bottom box, a support base, a screen frame seat and a positioning seat, the positioning bottom box is fixedly mounted above the support base, and the top end of the positioning bottom box is of an opening structure. A screen frame base is fixedly installed on the inner wall of the side edge, located at the top end, of the positioning bottom box and is formed by combining fixing frames and a protective screen between gaps of the fixing frames. According to the fixing device for plastic part spraying, the buffering self-adaption positioning and fixing assembly composed of the limiting barrel, the piston rod, the spring and the friction pad is arranged, the clamping and positioning requirements of plastic parts with different inner diameters are responded, the damping liquid and the overflow groove structure are combined, impact in the clamping process is effectively relieved, the clamping stability is improved, and the service life of the plastic parts is prolonged. And the integrity of the fixed part is also protected, and shaking, dislocation or damage caused by improper fixation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of plastic parts technology, and in particular to a fixing device for spraying plastic parts. Background Technology

[0002] Plastic parts are industrial components formed from plastic through processes such as injection molding and extrusion. They are widely used in electronics, automobiles, home appliances and other fields. They are characterized by light weight, corrosion resistance and easy processing. Spraying is the process of covering the surface of plastic parts with paint. Plastic parts spraying fixing devices are special tools used to fix plastic parts and ensure uniform spraying.

[0003] Most existing fixing devices for plastic parts spraying adopt simple slot or bracket structures, which are difficult to adjust flexibly according to plastic parts of different sizes. They have low compatibility, limited application scenarios, and are prone to shaking or dislocation of the sprayed parts during the spraying process, affecting the uniformity of spraying and the quality of finished products.

[0004] Therefore, in response to the problems of low compatibility and limited application scenarios of the above-mentioned fixing devices for plastic parts spraying, this utility model sets up a bufferable adaptive positioning and fixing component consisting of a limiting cylinder, piston rod, spring and friction pad, which responds to the clamping and positioning needs of plastic parts with different inner diameters. Combined with the damping fluid and overflow groove structure, it effectively reduces the impact during the clamping process, which not only improves the stability of clamping, but also protects the integrity of the fixed part and avoids shaking, dislocation or damage caused by improper fixing. Utility Model Content

[0005] To overcome the problems of low compatibility and limited application scenarios of common fixing devices for plastic parts spraying.

[0006] The technical solution of this utility model is as follows: a fixing device for spraying plastic parts, including a positioning base box, a support base, a mesh frame seat and a positioning seat. The positioning base box is fixedly installed on the top of the support base. The top of the positioning base box is set as an open structure, and a mesh frame seat is fixedly installed on the inner side wall of the positioning base box at the top position. The mesh frame seat is composed of a fixing frame and a protective mesh between the fixing frame and the fixing frame. The positioning seat is fixedly installed on the outer top wall of the mesh frame seat at the position of the fixing frame.

[0007] An auxiliary collection component is provided below the mesh frame base, a positioning and fixing component is provided above the mesh frame base, and an auxiliary adjustment component is provided above the positioning and fixing component.

[0008] Preferably, the auxiliary collection component includes a flow guide seat, a drain pipe, and a nut. The flow guide seat is provided on the inner wall of the bottom end of the positioning base box. The drain pipe is fixedly installed on the outer side wall of the positioning base box corresponding to the lowest horizontal position of the flow guide seat, and the internal space between the drain pipe and the positioning base box is through. The outer side wall of the drain pipe at the drain end position is provided with an annular thread groove for the nut to be threaded.

[0009] Preferably, the top outer wall of the flow guide seat is configured as an arc-shaped structure, and the middle section of the flow guide seat is the lowest horizontal plane.

[0010] Preferably, the positioning and fixing assembly includes a limiting cylinder, a limiting piston rod, an abutment spring, and an abutment plate. The outer side wall of the positioning seat is provided with equally spaced cylindrical placement grooves, and the limiting cylinder is slidably installed inside the cylindrical placement groove. The limiting piston rod is slidably installed inside the limiting cylinder. An abutment spring is connected between the outer side wall of the limiting piston rod and the inner wall of the groove bottom of the limiting cylinder. The protruding end of the limiting piston rod is located outside the limiting cylinder, and the protruding end of the limiting piston rod is connected to the outer side wall of the abutment plate.

[0011] Preferably, the contact plate is composed of an upper guide portion and a lower clamping portion, and a friction pad is embedded in the outer side wall of the contact plate at the clamping portion position.

[0012] Preferably, the limiting cylinder is filled with damping fluid, and an overflow groove is circumferentially opened on the outer wall of the side of the limiting piston rod located at the piston disc position.

[0013] Preferably, the auxiliary adjustment component includes a T-shaped slider, a positioning threaded groove, an alignment threaded groove, and fastening bolts. The T-shaped slider is fixedly installed on the top outer wall of the limiting cylinder, and the sliding end of the T-shaped slider is located above the positioning seat. The top outer wall of the T-shaped slider is symmetrically provided with positioning threaded grooves. The top outer wall of the positioning seat is provided with two sets of alignment threaded grooves. Fastening bolts are installed on the internal threads of the positioning threaded groove and the alignment threaded groove.

[0014] The beneficial effects of this utility model are:

[0015] 1. When in use, this plastic part spraying fixing device uses a buffered and adaptive positioning fixing component consisting of a limiting cylinder, piston rod, spring and friction pad to respond to the clamping and positioning requirements of plastic parts with different inner diameters. Combined with the damping fluid and overflow groove structure, it effectively reduces the impact during the clamping process, which not only improves the stability of clamping, but also protects the integrity of the fixed part and avoids shaking, dislocation or damage caused by improper fixing.

[0016] 2. When in use, the fixing device for spraying plastic parts introduces an auxiliary collection component consisting of a guide seat and a drain pipe. Its arc-shaped structure and minimum liquid level design can effectively collect excess spray liquid. With the detachable nut set on the outer wall, the waste liquid can be automatically guided and quickly discharged during the spraying process, which significantly improves the operating environment, reduces the burden of manual cleaning, and improves the environmental protection and efficiency of the overall spraying operation. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0018] Figure 2 The diagram shown is a three-dimensional structural diagram of the positioning base box of this utility model.

[0019] Figure 3 The diagram shown is a three-dimensional structural diagram of the flow guide seat and drain pipe of this utility model.

[0020] Figure 4 The diagram shown is a three-dimensional structural diagram of the installation of the contact plate and friction pad of this utility model;

[0021] Figure 5 The diagram shown is a three-dimensional structural diagram of the installation of the limiting cylinder and the T-shaped sliding component of this utility model.

[0022] Figure 6 This utility model is shown. Figure 5 Enlarged 3D structural diagram at point A.

[0023] Explanation of reference numerals in the attached drawings: 1. Positioning base box; 2. Support base; 3. Mesh frame seat; 4. Positioning seat; 5. Auxiliary collection assembly; 501. Flow guide seat; 502. Drain pipe; 503. Nut; 6. Positioning and fixing assembly; 601. Limiting cylinder; 602. Limiting piston rod; 603. Contact spring; 604. Contact plate; 605. Friction pad; 7. Auxiliary adjustment assembly; 701. T-shaped sliding part; 702. Positioning threaded groove; 703. Alignment threaded groove; 704. Fastening bolt. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6This utility model provides a technical solution: a fixing device for spraying plastic parts, including a positioning base box 1, a support base 2, a mesh frame seat 3 and a positioning seat 4. The positioning base box 1 is fixedly installed above the support base 2. The top of the positioning base box 1 is set as an open structure, and the mesh frame seat 3 is fixedly installed on the inner side wall of the positioning base box 1 at the top position. The mesh frame seat 3 is composed of a fixing frame and a protective net between the fixing frame and the fixing frame. The positioning seat 4 is fixedly installed on the outer top wall of the mesh frame seat 3 at the fixing frame position.

[0026] An auxiliary collection component 5 is provided below the wire mesh frame base 3, a positioning and fixing component 6 is provided above the wire mesh frame base 3, and an auxiliary adjustment component 7 is provided above the positioning and fixing component 6.

[0027] The frame base 3 here is composed of a fixed frame and a protective net between the fixed frame and the gap between the fixed frame. The fixed frame is set to provide stable support for the whole device, while the protective net is set to allow excess spray liquid to be collected into the interior of the positioning base box 1 through the protective net.

[0028] The auxiliary collection component 5 includes a flow guide seat 501, a drain pipe 502, and a nut 503. The flow guide seat 501 is provided on the inner wall of the bottom end of the positioning base box 1. The drain pipe 502 is fixedly installed on the outer side wall of the positioning base box 1 corresponding to the lowest horizontal position of the flow guide seat 501. The internal space between the drain pipe 502 and the positioning base box 1 is connected. The outer side wall of the drain pipe 502 at the lowest horizontal position is provided with an annular thread groove for the nut 503 to be threaded. The outer top wall of the flow guide seat 501 is set with an arc-shaped structure, and the middle section of the flow guide seat 501 is the lowest liquid level end.

[0029] The guide seat 501 is designed to allow the spray liquid collected inside the positioning base box 1 to concentrate at the lowest horizontal level of the guide seat 501, thus facilitating the smooth progress of subsequent cleaning and drainage processes.

[0030] The positioning and fixing assembly 6 includes a limiting cylinder 601, a limiting piston rod 602, an abutment spring 603, and an abutment plate 604. The outer side wall of the positioning seat 4 has equally spaced circumferentially spaced cylindrical placement grooves, and the limiting cylinder 601 is slidably installed inside the cylindrical placement grooves. The limiting piston rod 602 is slidably installed inside the limiting cylinder 601. An abutment spring 603 is connected between the outer side wall of the limiting piston rod 602 and the inner wall of the groove bottom of the limiting cylinder 601. The protruding end of 602 is located outside the limiting cylinder 601, and the protruding end of the limiting piston rod 602 is connected to the side outer wall of the contact plate 604. The contact plate 604 is composed of an upper guide part and a lower clamping part. A friction pad 605 is embedded in the side outer wall of the contact plate 604 at the clamping part position. The limiting cylinder 601 is filled with damping fluid. An overflow groove is circumferentially opened on the side outer wall of the limiting piston rod 602 at the piston plate position.

[0031] The damping fluid and overflow groove here slow down and buffer the movement of the limit piston rod 602, thereby improving the overall durability of the device. The friction pad 605 is designed to increase the friction between the device and the inner wall of the plastic part, so that it can be more stably positioned on the top of the device.

[0032] The auxiliary adjustment component 7 includes a T-shaped slider 701, a positioning threaded groove 702, an alignment threaded groove 703, and a fastening bolt 704. The T-shaped slider 701 is fixedly installed on the top outer wall of the limiting cylinder 601, and the sliding end of the T-shaped slider 701 is located above the positioning seat 4. The top outer wall of the T-shaped slider 701 is symmetrically provided with a positioning threaded groove 702. The top outer wall of the positioning seat 4 is provided with two sets of alignment threaded grooves 703. The internal threads of the positioning threaded groove 702 and the alignment threaded groove 703 are fitted with fastening bolts 704.

[0033] The T-shaped slider 701 is designed here to facilitate the adjustment of the installation position of the limiting cylinder 601, so as to meet the positioning and fixing requirements of plastic parts with different inner diameters.

[0034] Working principle: See Figures 5-6 As shown, before the plastic part is positioned securely, the contact plate 604 needs to be adjusted to a suitable contact position according to the inner diameter of the plastic part. To adjust it, the fastening bolt 704 needs to be unscrewed from the inside of the positioning thread groove 702, and then the T-shaped sliding member 701 changes from the locked state to the movable state. Then, the T-shaped sliding member 701 is pulled directly, and the movement of the T-shaped sliding member 701 will automatically drive the limiting cylinder 601 to slide inside the cylindrical placement groove. When the limiting cylinder 601 moves to a suitable extension length, the fastening bolt 704 is then passed through the positioning thread groove 702 and screwed to the bottom of the corresponding alignment thread groove 703 to complete the re-locking and positioning of the limiting cylinder 601.

[0035] See Figure 1 and Figure 4As shown, when it is necessary to fix the plastic part above the device, simply push the plastic part vertically downwards to the middle position of the three sets of contact plates 604. The three sets of contact plates 604 will then automatically move due to the contact action, providing space for the plastic part. The movement of the contact plates 604 will automatically drive the limiting piston rod 602 to slide inside the limiting cylinder 601. At this time, the damping fluid inside the limiting cylinder 601 flows from one side of the piston disc to the other through the overflow groove, and utilizes the non-compressibility of the liquid to control the movement of the limiting piston rod 602. The movement acts as a speed reduction and buffer. At this time, the contact spring 603 is in a contracted state due to the squeezing action of the limiting piston rod 602. Simultaneously, the contact spring 603 generates a reaction force under the squeezing action and pushes the limiting piston rod 602 to move in the opposite direction. In turn, the reverse movement of the limiting piston rod 602 will automatically push the contact plate 604 to move in the opposite direction and make it tightly contact the inner wall of the plastic part, so as to complete the positioning and fixing effect of the plastic part. The friction pad 605 is designed to increase the contact friction between the device as a whole and the inner wall of the plastic part, so that it can be more stably positioned above the device.

[0036] See Figures 1-3 As shown, as the spraying process proceeds, excess spray liquid on the table can flow through the mesh frame seat 3 into the interior of the positioning base box 1. The spray liquid is then guided by the arc surface of the guide seat 501 to gather at the lowest horizontal end of the guide seat 501. When the spray liquid inside the positioning base box 1 is subsequently discharged, the nut 503 can be unscrewed directly. Then, the spray liquid inside the positioning base box 1 can be discharged to the outside of the device through the drain pipe 502.

[0037] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] 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 fixing device for spraying plastic parts, comprising a positioning base (1), a support base (2), a mesh frame base (3), and a positioning seat (4), characterized in that: The positioning base box (1) is fixedly installed above the support base (2). The top of the positioning base box (1) is set as an open structure, and a mesh frame seat (3) is fixedly installed on the inner side wall of the positioning base box (1) at the top position. The mesh frame seat (3) is composed of a protective net between the fixed frame and the gap between the fixed frame. A positioning seat (4) is fixedly installed on the outer top wall of the mesh frame seat (3) at the fixed frame position. An auxiliary collection component (5) is provided below the mesh frame base (3), a positioning and fixing component (6) is provided above the mesh frame base (3), and an auxiliary adjustment component (7) is provided above the positioning and fixing component (6).

2. The fixing device for spraying plastic parts according to claim 1, characterized in that: The auxiliary collection component (5) includes a flow guide seat (501), a drain pipe (502), and a nut (503). The flow guide seat (501) is provided on the inner wall of the bottom end of the positioning base box (1). The drain pipe (502) is fixedly installed on the outer side wall of the positioning base box (1) corresponding to the lowest horizontal position of the flow guide seat (501). The internal space between the drain pipe (502) and the positioning base box (1) is connected. The outer side wall of the drain pipe (502) at the drain end position is provided with an annular thread groove for the nut (503) to be threaded.

3. The fixing device for spraying plastic parts according to claim 2, characterized in that: The top outer wall of the flow guide seat (501) is set as an arc-shaped structure, and the middle section of the flow guide seat (501) is the lowest horizontal plane.

4. The fixing device for spraying plastic parts according to claim 1, characterized in that: The positioning and fixing assembly (6) includes a limiting cylinder (601), a limiting piston rod (602), an abutment spring (603), and an abutment plate (604). The outer side wall of the positioning seat (4) is provided with cylindrical placement grooves at equal intervals in the circumferential direction. The limiting cylinder (601) is slidably installed inside the cylindrical placement groove. The limiting piston rod (602) is slidably installed inside the limiting cylinder (601). An abutment spring (603) is connected between the outer side wall of the limiting piston rod (602) and the inner wall of the groove bottom of the limiting cylinder (601). The protruding end of the limiting piston rod (602) is located outside the limiting cylinder (601), and the protruding end of the limiting piston rod (602) is connected to the outer side wall of the abutment plate (604).

5. A fixing device for spraying plastic parts according to claim 4, characterized in that: The contact plate (604) is composed of an upper guide portion and a lower clamping portion, and a friction pad (605) is embedded in the outer side wall of the contact plate (604) at the clamping portion position.

6. A fixing device for spraying plastic parts according to claim 4, characterized in that: The limiting cylinder (601) is filled with damping fluid, and the limiting piston rod (602) has an overflow groove circumferentially opened on the outer side wall of the piston disc.

7. A fixing device for spraying plastic parts according to claim 4, characterized in that: The auxiliary adjustment component (7) includes a T-shaped slider (701), a positioning threaded groove (702), an alignment threaded groove (703), and a fastening bolt (704). The T-shaped slider (701) is fixedly installed on the top outer wall of the limiting cylinder (601), and the sliding end of the T-shaped slider (701) is located above the positioning seat (4). The top outer wall of the T-shaped slider (701) is symmetrically provided with a positioning threaded groove (702). The top outer wall of the positioning seat (4) is provided with two sets of alignment threaded grooves (703). The internal threads of the positioning threaded groove (702) and the alignment threaded groove (703) are fitted with fastening bolts (704).

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