Rapid grinding device for plastic products

Abstract

The utility model relates to the technical field of plastic product processing, and particularly discloses a quick polishing device for plastic products, which comprises a bottom plate, a conveyor arranged at the top of the bottom plate and a conveying belt arranged in the conveyor, and a positioning mechanism and a polishing mechanism are arranged at the top of the conveyor; the positioning mechanism comprises four fixing blocks fixedly installed at the front end and the rear end of the top of the conveyor correspondingly, a screw is rotationally connected between the two fixing blocks located on the same side, the outer side wall of the screw is in threaded connection with a sliding block slidably connected with the top of the conveyor, and a fixing plate is fixedly installed on the side, close to the conveying belt, of the sliding block. The plastic product polishing device is suitable for batch continuous production, the machining efficiency is effectively improved, the PLC controls the conveying belt to move intermittently, the surfaces of the plastic products are covered in a segmented mode in combination with reciprocating motion of the polishing wheel, single-station repeated clamping is avoided, and the equipment vacancy time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of plastic product processing technology, and specifically discloses a rapid grinding device for plastic products. Background Technology

[0002] Plastic products are a general term for daily necessities and industrial products made primarily from plastic. They include products manufactured using all processes such as injection molding and vacuum forming. Plastic is a type of synthetic polymer material with plasticity. Plastic products need to be polished to enhance their aesthetics, which requires the use of polishing equipment.

[0003] Chinese Patent No. CN219005592U discloses a rapid grinding device for plastic products, belonging to the field of plastic product grinding technology. The key technical features include a base plate with a groove on its upper surface, a second motor mounted above the base plate, a rotating shaft mounted at the output end of the second motor, and a grinding wheel mounted at the other end of the rotating shaft; and a fixing mechanism located on the end face of the second motor for fixing the plastic product to be ground. The second motor is connected to an external power source. The plastic product to be ground is placed inside the groove, and then the second motor is started, driving the rotating shaft to rotate, which in turn drives the grinding wheel to rotate, thus grinding the plastic product placed in the groove. During grinding, the fixing mechanism secures the plastic product, preventing it from sliding and affecting the grinding process. Therefore, by setting up the fixing mechanism, it is easy to quickly fix the plastic product, effectively improving work efficiency.

[0004] In actual use, the above-mentioned device has the following drawbacks: intermittent operation and low efficiency; it requires manual placement and removal of plastic products one by one, and cannot achieve continuous conveying and automated assembly line operation; frequent start-ups and shutdowns of the equipment during batch processing lead to low efficiency; the grinding device can only perform single-point or unidirectional grinding on fixed workstations, and cannot cover large areas of plastic products, requiring multiple clamping or manual adjustment of the angle of the plastic products, which can easily lead to uneven processing. Utility Model Content

[0005] This utility model proposes a rapid grinding device for plastic products. The device enables rapid grinding of plastic products, is suitable for batch continuous production, and effectively improves processing efficiency. The PLC controls the intermittent movement of the conveyor belt, which, combined with the reciprocating motion of the grinding wheel, covers the surface of the plastic product in sections, avoiding repeated clamping at a single station and reducing equipment downtime.

[0006] This utility model is implemented as follows: a rapid grinding device for plastic products includes a base plate, a conveyor set on top of the base plate, and a conveyor belt set inside the conveyor. A positioning mechanism and a grinding mechanism are set on the top of the conveyor. The positioning mechanism includes four fixing blocks respectively fixedly installed at the front and rear ends of the top of the conveyor. A screw is rotatably connected between two fixing blocks on the same side. A slider that is slidably connected to the top of the conveyor is threaded to the outer wall of the screw. A fixing plate is fixedly installed on the side of the slider near the conveyor belt. Two first electric push rods distributed on the left and right and located above the fixing plate are fixedly installed on the outer wall of the fixing plate. The two first electric push rods on the same side pass through the fixing plate and are jointly fixedly connected to a clamping plate that abuts against the conveyor belt.

[0007] The grinding mechanism includes a gantry frame located on the outer side of the middle of the conveyor. A support plate is fixedly installed on the upper side of the right side wall of the gantry frame. A second electric push rod is fixedly installed on the top of the support plate. The output end of the second electric push rod passes through the support plate and is fixedly installed with a blocking plate. The blocking plate is located directly above the conveyor belt and aligned with the left end of the clamping plate.

[0008] As a preferred embodiment of the rapid grinding device for plastic products of this utility model, the top of the gantry frame is provided with a through hole, the grinding mechanism further includes a lead screw rotatably connected to the through hole, the outer wall of the lead screw is threadedly connected to a moving block slidably connected to the inner wall of the through hole, the bottom of the moving block is fixedly installed with a fixed frame that is open at both the front and rear ends, a third motor is fixedly installed inside the fixed frame, and the output end of the third motor passes through the bottom of the fixed frame and is fixedly installed with a grinding wheel.

[0009] As a preferred embodiment of the rapid grinding device for plastic products according to this utility model, two hydraulic cylinders distributed front and rear are fixedly installed on the top of the base plate, and the output ends of the two hydraulic cylinders are fixedly connected to the bottom of the gantry frame.

[0010] As a preferred embodiment of the rapid grinding device for plastic products according to this utility model, a second motor is fixedly installed on the outer wall of the gantry frame via a base, and the output end of the second motor is coaxially and fixedly connected to one end of the lead screw.

[0011] In a preferred embodiment of the rapid grinding device for plastic products according to this utility model, a first motor is fixedly installed on the outer wall of the fixing block, and the output end of the first motor is coaxially and fixedly connected to the screw.

[0012] As a preferred embodiment of the rapid grinding device for plastic products according to this utility model, anti-slip pads are fixedly installed on the opposite sides of the two clamping plates.

[0013] As a preferred embodiment of the rapid grinding device for plastic products according to this utility model, a PLC touch screen all-in-one machine is fixedly installed on one side of the conveyor.

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

[0015] 1. The conveyor belt and clamping plate work together to transport plastic products, and the blocking plate blocks and limits the movement, realizing feeding, positioning, grinding and transfer. It can quickly grind plastic products, which is suitable for batch continuous production and effectively improves processing efficiency. The PLC controls the intermittent movement of the conveyor belt, combined with the reciprocating motion of the grinding wheel, to cover the surface of the plastic products in sections, avoiding repeated clamping at a single station and reducing equipment downtime.

[0016] 2. By using a conveyor belt and clamping plate to control the movement of plastic products at a set distance and the cyclical grinding of the area, the grinding wheel processes the surface of the product step by step according to the planned path, avoiding the problems of missed grinding or over-grinding that may occur in traditional one-time grinding. Especially for large plastic products, it ensures the uniformity of grinding of plastic products. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a top view of a rapid polishing device for plastic products according to this utility model.

[0019] Figure 2 This is a top view of the fixing mechanism of this utility model.

[0020] Figure 3 This is a front sectional view of the grinding mechanism of this utility model.

[0021] Figure 4 This is a structural diagram of the gantry frame and support plate of this utility model.

[0022] The markings in the diagram are: 1. Base plate; 2. Conveyor; 201. Conveyor belt; 3. Fixed block; 301. Screw; 3011. First motor; 302. Slider; 4. Fixed plate; 401. First electric actuator; 5. Clamping plate; 6. Gantry frame; 601. Through hole; 602. Lead screw; 6021. Second motor; 603. Moving block; 7. Fixed frame; 701. Third motor; 702. Grinding wheel; 8. Hydraulic cylinder; 9. Support plate; 901. Second electric actuator; 902. Blocking plate. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Please see Figure 1-4 A rapid grinding device for plastic products includes a base plate 1, a conveyor 2 disposed on the top of the base plate 1, and a conveyor belt 201 disposed inside the conveyor 2. The top of the conveyor 2 is provided with a positioning mechanism and a grinding mechanism. The positioning mechanism includes four fixing blocks 3 respectively fixedly installed at the front and rear ends of the top of the conveyor 2. A screw 301 is rotatably connected between two fixing blocks 3 on the same side. A slider 302 that is slidably connected to the top of the conveyor 2 is threadedly connected to the outer wall of the screw 301. A fixing plate 4 is fixedly installed on the side of the slider 302 near the conveyor belt 201. Two first electric push rods 401 that are distributed left and right and located above the fixing plate 4 are fixedly installed on the outer wall of the fixing plate 4. The two first electric push rods 401 located on the same side pass through the fixing plate 4 and are jointly fixedly connected to a clamping plate 5 that abuts against the conveyor belt 201.

[0025] The grinding mechanism includes a gantry 6 located on the outer side of the middle part of the conveyor 2. A support plate 9 is fixedly installed on the upper side of the right side wall of the gantry 6. A second electric push rod 901 is fixedly installed on the top of the support plate 9. The output end of the second electric push rod 901 passes through the support plate 9 and a blocking plate 902 is fixedly installed thereon. The blocking plate 902 is located directly above the conveyor belt 201 and aligned with the left end of the clamping plate 5.

[0026] In this embodiment: the worker places the plastic products to be polished sequentially at the right end of the conveyor belt 201, and the conveyor belt 201 transports the plastic products from left to right. At this time, the second electric push rod 901 drives the baffle plate 902 to descend and stop the plastic products from moving further, so that the plastic products on the conveyor belt 201 are arranged end to end. When the number of plastic products on the conveyor belt 201 has been moved, the two first electric push rods 401 on one side are activated to push the clamping plate 5 to clamp the plastic products. The two first motors 3011 are activated to drive the screws 301 on both sides to rotate synchronously, and cooperate with the polishing wheel 702 of the polishing mechanism to reciprocate, covering the surface of the plastic products in sections to complete local polishing, ensuring the uniformity of polishing of the plastic products, realizing rapid polishing of plastic products, suitable for batch continuous production, and effectively improving processing efficiency.

[0027] As a technical optimization of this utility model, the top of the gantry frame 6 is provided with a through hole 601. The grinding mechanism also includes a lead screw 602 rotatably connected to the through hole 601. The outer wall of the lead screw 602 is threadedly connected to a moving block 603 slidably connected to the inner wall of the through hole 601. The bottom of the moving block 603 is fixedly installed with a fixed frame 7 that is open at both the front and rear ends. The inside of the fixed frame 7 is fixedly installed with a third motor 701. The output end of the third motor 701 passes through the bottom of the fixed frame 7 and is fixedly installed with a grinding wheel 702.

[0028] In this embodiment: When the lead screw 602 rotates, it can drive the moving block 603 to move. Since the two sides of the moving block 603 slide and cooperate with the inner wall of the through hole 601, the through hole 601 can guide the moving block 603 to restrict the axial rotation of the moving block 603, so that it can only move along the axial direction of the lead screw 602. When the third motor 701 is started, the grinding wheel 702 rotates at high speed and grinds the surface of the plastic product fixed on the conveyor belt 201. By controlling the rotation direction and speed of the lead screw 602, the grinding wheel 702 can be moved back and forth on the surface of the plastic product, so that the grinding wheel 702 covers different areas of the plastic product and achieves large-area grinding.

[0029] As a technical optimization of this utility model, two hydraulic cylinders 8 distributed front and rear are fixedly installed on the top of the base plate 1, and the output ends of the two hydraulic cylinders 8 are fixedly connected to the bottom of the gantry frame 6.

[0030] In this embodiment: the two hydraulic cylinders 8 on the base plate 1 extend and retract synchronously, and the piston rod pushes the gantry 6 to rise and fall as a whole, so as to adjust the vertical height of the grinding mechanism.

[0031] As a technical optimization of this utility model, a second motor 6021 is fixedly installed on the outer wall of the gantry frame 6 via a base, and the output end of the second motor 6021 is coaxially and fixedly connected to one end of the lead screw 602.

[0032] In this embodiment: the second motor 6021 is started to drive the lead screw 602 to rotate synchronously, thereby driving the moving block 603, which is threadedly connected to the lead screw 602, to slide laterally along the through hole 601.

[0033] As a technical optimization of this utility model, a first motor 3011 is fixedly installed on the outer wall of the fixing block 3, and the output end of the first motor 3011 is coaxially fixedly connected to the screw 301.

[0034] In this embodiment: starting the first motor 3011 can drive the screw 301 to rotate, causing the slider 302 to slide laterally along the top of the conveyor 2.

[0035] As a technical optimization of this utility model, anti-slip pads are fixedly installed on the opposite sides of the two clamping plates 5.

[0036] In this embodiment: the anti-slip pad is made of rubber. When the clamping plate 5 clamps the plastic product, the anti-slip pad is in close contact with the surface of the product. By utilizing the elastic deformation and surface texture of the material, the product is effectively prevented from sliding due to the lateral friction of the grinding wheel 702 during the grinding process.

[0037] As a technical optimization of this utility model, a PLC touch screen all-in-one machine is fixedly installed on one side of the conveyor 2.

[0038] In this embodiment: The PLC touch screen all-in-one machine integrates a programmable logic controller (PLC), which is connected to electrical components such as the first motor 3011, the second motor 6021, the third motor 701, the first electric actuator 401, the second electric actuator 901, and the hydraulic cylinder 8 through wires to realize the automated control of the entire device.

[0039] The working principle and usage process of this utility model are as follows: In the initial state, the two clamping plates 5 are located at the rightmost end of the conveyor 2. The operator places the plastic products to be polished on the right end of the conveyor belt 201 in sequence. The conveyor belt 201 transports the plastic products from left to right. At this time, the PLC touch screen all-in-one machine activates the second electric push rod 901 to drive the blocking plate 902 to descend to the left end of the clamping plate 5 (the maximum extension length of the second electric push rod 901 is such that the blocking plate 902 just contacts the surface of the conveyor belt 201). At this time, the blocking plate 902 prevents the plastic products from moving further, so that the plastic on the conveyor belt 201... The products are arranged end to end. When the number of plastic products on the conveyor belt 201 reaches the required quantity (i.e., the rightmost plastic product on the conveyor belt 201 is located at the right end of the conveyor belt 201), the two first electric push rods 401 on one side are activated to push the clamping plate 5 and clamp the plastic product through the anti-slip pad (the height of the clamping plate 5 is lower than the height of the plastic product) to prevent displacement during the grinding process. The second electric push rod 901 is activated to move the blocking plate 902 to the initial position. The two first motors 3011 are activated to drive the screws 301 on both sides to rotate synchronously, causing the slider 302 to slide along the top of the conveyor 2. At the same time, the two first motors 3011 are coordinated with the screws 301 on both sides to rotate synchronously. Conveyor 2 operates synchronously at the same speed, causing conveyor belt 201 and two clamping plates 5 to jointly transport plastic products toward the grinding mechanism. At this time, two hydraulic cylinders 8 are activated to control the lifting and lowering of gantry 6, adjusting the height of grinding wheel 702 so that it contacts the conveyed plastic product. Simultaneously, third motor 701 is activated to drive grinding wheel 702 to rotate at high speed, grinding the surface of the plastic product. At the same time, second motor 6021 drives grinding wheel 702 to move back and forth along the surface of plastic product through lead screw 602, completing local grinding. After the first grinding is completed, PLC touch screen all-in-one machine controls conveyor 2 to start conveyor belt 201. After moving the plastic product a set distance together with the clamping plate 5, the grinding wheel 702 pauses. Then, it moves back and forth again to grind the next area of ​​the plastic product. This process is repeated until the entire area is covered. After all grinding is completed, the plastic product moves to the left side of the grinding mechanism with the conveyor belt 201. The first electric push rod 401 retracts, the clamping plate 5 releases the plastic product, and the PLC controls the conveyor 2 to transport it to the next process. The operator continues to place the plastic products to be ground on the right end of the conveyor belt 201. The second electric push rod 901 is activated so that the blocking plate 902 blocks the plastic products to be ground again, and the next grinding operation is carried out.

[0040] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A rapid polishing device for plastic products, comprising a base plate (1), a conveyor (2) arranged on the top of the base plate (1), and a conveying belt (201) arranged in the conveyor (2), characterized in that: The top of the conveyor (2) is provided with a positioning mechanism and a grinding mechanism; the positioning mechanism includes four fixed blocks (3) respectively fixedly installed at the front and rear ends of the top of the conveyor (2), and a screw (301) is rotatably connected between two fixed blocks (3) on the same side. The outer wall of the screw (301) is threadedly connected to a slider (302) that is slidably connected to the top of the conveyor (2). A fixed plate (4) is fixedly installed on the side of the slider (302) near the conveyor belt (201). Two first electric push rods (401) are fixedly installed on the outer wall of the fixed plate (4) and are distributed on the left and right and located above the fixed plate (4). The two first electric push rods (401) on the same side pass through the fixed plate (4) and are jointly fixedly connected to a clamping plate (5) that abuts against the conveyor belt (201). The grinding mechanism includes a gantry (6) located on the outer side of the middle part of the conveyor (2). A support plate (9) is fixedly installed on the upper side of the right side wall of the gantry (6). A second electric push rod (901) is fixedly installed on the top of the support plate (9). The output end of the second electric push rod (901) passes through the support plate (9) and is fixedly installed with a blocking plate (902). The blocking plate (902) is located directly above the conveyor belt (201) and aligned with the left end of the clamping plate (5).

2. The rapid polishing device for plastic products according to claim 1, characterized in that: The top of the gantry (6) is provided with a through hole (601). The grinding mechanism also includes a lead screw (602) rotatably connected to the through hole (601). The outer wall of the lead screw (602) is threadedly connected to a moving block (603) slidably connected to the inner wall of the through hole (601). The bottom of the moving block (603) is fixedly installed with a fixed frame (7) that is open at both the front and rear ends. The inside of the fixed frame (7) is fixedly installed with a third motor (701). The output end of the third motor (701) passes through the bottom of the fixed frame (7) and is fixedly installed with a grinding wheel (702).

3. The device for quickly polishing a plastic product according to claim 1, wherein: Two hydraulic cylinders (8) are fixedly installed on the top of the base plate (1), and the output ends of the two hydraulic cylinders (8) are fixedly connected to the bottom of the gantry (6).

4. The device for quickly polishing a plastic product according to claim 2, wherein: The outer wall of the gantry (6) is fixedly mounted with a second motor (6021) via a base. The output end of the second motor (6021) is coaxially fixedly connected to one end of the lead screw (602).

5. The device for quickly polishing a plastic product according to claim 1, wherein: The outer wall of the fixing block (3) is fixedly installed with a first motor (3011), and the output end of the first motor (3011) is coaxially fixedly connected with the screw (301).

6. The device for quickly polishing a plastic product according to claim 1, wherein: Anti-slip pads are fixedly installed on the opposite sides of the two clamping plates (5).

7. The device for quickly polishing a plastic product according to claim 2, wherein: A PLC touch screen all-in-one machine is fixedly installed on one side of the conveyor (2).

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