Device for preventing hands from being cut after edge cutting of plastic tray
By designing a cutting-proof hand device, the plastic pallet edges are polished by multiple angles using rotating motors and hydraulic rods to drive the grinding discs, which solves the problem of palm scratches caused by sharp edges of the pallets, and achieves a safe and reliable processing process.
Patent Information
- Application Number
- CN202421659914.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The plastic pallet has sharp edges after cutting edges, which can easily scratch the palms. The existing technology lacks effective protective measures.
A cutting-proof hand device is designed to turn left, right, forward and backward by rotating the grinding disc by rotating the grinding disc 90 degrees to grind the edge of the pallet. Combined with the adjustment mechanism of the electric telescopic rod and hydraulic rod, comprehensively polishing the four sides of the pallet.
It effectively avoids scratching the palm of the sharp edge of the tray, ensuring processing stability and safety.
Smart Images

Figure CN223114811U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-cutting hand devices, in particular to an anti-cutting hand device for a plastic tray after trimming the edges. Background Art
[0002] Many plastic trays for food need to be cut and processed after plastic shaping production.
[0003] Since the plastic tray for food is usually held by the palm at the edge of the tray during use, when an accident occurs and the plastic tray slips from the hand, there is a problem that the trimmed edge of the tray is very easy to cut the palm; to solve the above problems, an anti-cutting hand device for a plastic tray after trimming the edges is proposed in this application. Content of the Utility Model
[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose an anti-cutting hand device for a plastic tray after trimming the edges, which grinds the trimmed edge by rotating the grinding disc left and right; grinds the overall edge by moving the grinding disc back and forth; and grinds the four side edges by rotating the plastic tray by 90 degrees.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] An anti-cutting hand device for a plastic tray after trimming the edges, comprising a frame body, wherein a U-shaped frame is fixedly connected to the inner bottom of the frame body, a rotating motor is fixedly connected to the inner bottom of the frame body, an output shaft of the rotating motor penetrates through the U-shaped frame and is rotatably connected thereto, an end of the output shaft of the rotating motor is fixedly connected with a mounting plate, a plastic tray body is placed on the top of the mounting plate, an electric telescopic rod is fixedly connected to the inner top of the frame body, a bearing is fixedly connected to an output end of the electric telescopic rod, a pressing plate is fixedly connected to the bearing, and an adjusting mechanism is arranged on the frame body.
[0007] Preferably, the adjusting mechanism comprises an adjusting motor fixedly connected to the front end of the frame body, a threaded rod is fixedly connected to an output end of the adjusting motor, the threaded rod penetrates through the frame body and is rotatably connected thereto, a moving block is sleeved on an outer wall of the threaded rod and is threadedly connected thereto, a sliding rod is fixedly connected to the frame body, the sliding rod penetrates through the moving block and is slidably connected thereto, a first hydraulic rod fixedly connected thereto penetrates through the moving block, an output end of the first hydraulic rod is rotatably connected to a fixing plate, an output end of the first hydraulic rod is rotatably connected to a second hydraulic rod, the second hydraulic rod is rotatably connected to a side wall of the fixing plate, a servo motor is fixedly connected to the side wall of the fixing plate, and a grinding disc is fixedly connected to an end of an output shaft of the servo motor.
[0008] Preferably, a plurality of support legs are provided at the bottom of the plastic tray body, and a plurality of slots are formed at the top of the mounting plate, and the plurality of support legs are respectively inserted into the slots.
[0009] Preferably, a through hole is formed through the moving block, and an external thread and an internal thread that cooperate with each other are respectively provided on the outer wall of the threaded rod and the inner wall of the through hole.
[0010] Preferably, a sliding opening is formed in the frame body, and the moving block is located in the sliding opening and is slidably connected to the inner wall thereof.
[0011] Preferably, anti-slip lines are provided at the bottom of the pressing plate.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. Start the electric telescopic rod to drive the pressing plate to move downward until the pressing plate abuts against the top of the plastic tray body to limit the plastic tray body, ensuring the stability of the subsequent edge processing of the plastic tray body.
[0014] 2. Start the second hydraulic rod to drive the fixed plate, the servo motor and the grinding disc to deflect, adjust the angle of the grinding disc, and grind the upper and lower edges on the same side by turning the grinding disc left and right.
[0015] 3. Start the rotating motor to drive the mounting plate, the plastic tray body, and the pressing plate to rotate 90 degrees, and the different sides can be ground.
[0016] In summary, by turning the grinding disc left and right, the cut edge is ground; by moving the grinding disc back and forth, the overall edge is ground; by rotating the plastic tray 90 degrees, the four sides are ground. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic structural diagram of a device for preventing hand cutting after trimming the edge of a plastic tray proposed by the present utility model;
[0018] Figure 2 is a schematic diagram of a partial structure in a device for preventing hand cutting after trimming the edge of a plastic tray proposed by the present utility model.
[0019] In the figure: 1 frame body, 2 U-shaped frame, 3 rotating motor, 4 mounting plate, 5 plastic tray body, 6 slot, 7 electric telescopic rod, 8 bearing, 9 pressing plate, 10 adjusting motor, 11 threaded rod, 12 moving block, 13 sliding rod, 14 first hydraulic rod, 15 fixed plate, 16 second hydraulic rod, 17 servo motor, 18 grinding disc. DETAILED DESCRIPTION OF THE INVENTION
[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.
[0021] Referring to Figure 1 - Figure 2 , a device for preventing hand cuts after trimming a plastic tray includes a frame body 1. A U-shaped frame 2 is fixedly connected to the inner bottom of the frame body 1. A rotary motor 3 is fixedly connected to the inner bottom of the frame body 1. The output shaft of the rotary motor 3 penetrates through the U-shaped frame 2 and is rotatably connected thereto. The end of the output shaft of the rotary motor 3 is fixedly connected with a mounting plate 4. A plastic tray body 5 is placed on the top of the mounting plate 4. A plurality of support legs are provided at the bottom of the plastic tray body 5. A plurality of slots 6 are formed in the top of the mounting plate 4. The plurality of support legs are respectively inserted into the slots 6. By driving the plastic tray body 5 to rotate 90 degrees by the rotary motor 3, the front, rear, left, and right four side edges can be polished.
[0022] An electric telescopic rod 7 is fixedly connected to the inner top of the frame body 1. The output end of the electric telescopic rod 7 is fixedly connected with a bearing 8. The bearing 8 is fixedly connected with a pressing plate 9. Anti-slip lines are provided at the bottom of the pressing plate 9. The pressing plate 9 abuts against the plastic tray body 5 to limit the plastic tray body 5 and ensure stability during polishing.
[0023] An adjusting mechanism is provided on the frame body 1. The adjusting mechanism includes an adjusting motor 10 fixedly connected to the front end of the frame body 1. The output end of the adjusting motor 10 is fixedly connected with a threaded rod 11. The threaded rod 11 penetrates through the frame body 1 and is rotatably connected thereto. A moving block 12 is sleeved on the outer wall of the threaded rod 11 and is threadedly connected thereto. A through hole is formed through the moving block 12. External threads and internal threads are respectively provided on the outer wall of the threaded rod 11 and the inner wall of the through hole. A sliding rod 13 is fixedly connected to the frame body 1. The sliding rod 13 penetrates through the moving block 12 and is slidably connected thereto. A sliding opening is formed in the frame body 1. The moving block 12 is located in the sliding opening and is slidably connected to its inner wall. By moving the moving block 12 back and forth, the grinding disc 18 is driven to move back and forth to polish the edges.
[0024] A first hydraulic rod 14 fixedly connected to the moving block 12 penetrates through the moving block 12. The output end of the first hydraulic rod 14 is rotatably connected to a fixing plate 15. The output end of the first hydraulic rod 14 is rotatably connected to a second hydraulic rod 16. The second hydraulic rod 16 is rotatably connected to the side wall of the fixing plate 15. Starting the second hydraulic rod 16 drives the fixing plate 15 and the grinding disc 18 to turn left and right to polish the upper and lower sides on the same side. A servo motor 17 is fixedly connected to the side wall of the fixing plate 15. The end of the output shaft of the servo motor 17 is fixedly connected with a grinding disc 18.
[0025] In the present utility model, when it is necessary to process the edge of the plastic tray after trimming, the plastic tray body 5 is placed on the mounting plate 4, and the support legs of the plastic tray body 5 are inserted into the slots 6. Then, the electric telescopic rod 7 is started to drive the pressing plate 9 to move downward until the pressing plate 9 abuts against the top of the plastic tray body 5 to limit the plastic tray body 5, ensuring the stability of subsequent edge processing of the plastic tray body 5. At this time, the servo motor 17 is started to drive the grinding disc 18 to rotate, and the second hydraulic rod 16 is started to drive the fixing plate 15, the servo motor 17 and the grinding disc 18 to deflect, so as to adjust the angle of the grinding disc 18. The first hydraulic rod 14 is started to drive the fixing plate 15, the servo motor 17 and the grinding disc 18 to move until the grinding disc 18 contacts the edge of the plastic tray body 5 to perform grinding processing on it, preventing the edge from being too sharp and cutting hands. The adjusting motor 10 is started to drive the threaded rod 11 to rotate, so that the moving block 12, the first hydraulic rod 14, the fixing plate 15, the servo motor 17 and the grinding disc 18 move back and forth to perform grinding processing on the entire edge. By rotating the fixing plate 15 and the grinding disc 18 in the left and right directions, the upper and lower edges on the same side can be ground. The first hydraulic rod 14 is started to drive the grinding disc 18 to reset, and the rotating motor 3 is started to drive the mounting plate 4, the plastic tray body 5 and the pressing plate 9 to rotate 90 degrees, so that different sides can be ground.
[0026] By setting an adjusting mechanism, the present utility model solves the problem in the prior art that when the plastic tray slips from the hand, the edge of the cut tray is very likely to scratch the palm.
Claims
1. A device for preventing hand cuts after trimming a plastic pallet, comprising a frame body (1), characterized in that, The inner bottom of the frame body (1) is fixedly connected with a U-shaped frame (2). The inner bottom of the frame body (1) is fixedly connected with a rotary motor (3). The output shaft of the rotary motor (3) penetrates through the U-shaped frame (2) and is rotatably connected thereto. The end of the output shaft of the rotary motor (3) is fixedly connected with a mounting plate (4). A plastic tray body (5) is placed on the top of the mounting plate (4). The inner top of the frame body (1) is fixedly connected with an electric telescopic rod (7). The output end of the electric telescopic rod (7) is fixedly connected with a bearing (8). The bearing (8) is fixedly connected with a pressing plate (9). An adjusting mechanism is provided on the frame body (1).
2. The anti-cutting hand device after trimming of a plastic tray according to claim 1, characterized in that, The adjusting mechanism includes an adjusting motor (10) fixedly connected to the front end of the frame body (1). The output end of the adjusting motor (10) is fixedly connected with a threaded rod (11). The threaded rod (11) penetrates through the frame body (1) and is rotatably connected thereto. An outer wall of the threaded rod (11) is sleeved with a moving block (12) threadedly connected thereto. A sliding rod (13) is fixedly connected to the frame body (1). The sliding rod (13) penetrates through the moving block (12) and is slidably connected thereto. A first hydraulic rod (14) fixedly connected thereto penetrates through the moving block (12). The output end of the first hydraulic rod (14) is rotatably connected with a fixing plate (15). The output end of the first hydraulic rod (14) is rotatably connected with a second hydraulic rod (16). The second hydraulic rod (16) is rotatably connected to a side wall of the fixing plate (15). A servo motor (17) is fixedly connected to a side wall of the fixing plate (15). The end of the output shaft of the servo motor (17) is fixedly connected with a grinding disc (18).
3. The anti-cutting hand device after trimming of a plastic tray according to claim 1, characterized in that, A plurality of support legs are provided at the bottom of the plastic tray body (5). A plurality of slots (6) are formed in the top of the mounting plate (4). The plurality of support legs are respectively inserted into the slots (6).
4. The anti-cutting hand device after trimming a plastic tray according to claim 2, characterized in that, A through hole is formed in the moving block (12). An outer thread and an inner thread are respectively provided on an outer wall of the threaded rod (11) and an inner wall of the through hole.
5. The anti-cutting hand device after trimming of a plastic pallet according to claim 2, wherein, A sliding port is formed in the frame body (1). The moving block (12) is located in the sliding port and is slidably connected to an inner wall thereof.
6. The anti-cutting device for a plastic tray after trimming according to claim 1, wherein The bottom of the pressing plate (9) is provided with anti-slip lines.