Bending device for producing plastic coaming box
By combining the adsorption plate with a vacuum pump and using precise angle control of the scale plate, the problem of fixing irregular plastic panels in existing plastic panel box bending devices has been solved, thus improving product quality and precision.
Patent Information
- Application Number
- CN202423282994.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing plastic panel box bending devices are difficult to stably fix plastic panels with irregular shapes or special surface textures, and the pressure roller fixing method is prone to leaving indentations, affecting the product's appearance quality.
The device employs a combination of an adsorption plate and a vacuum pump for fixation, along with a fixing mechanism and rubber blocks to provide additional fixing force. Precise angle control is achieved using a scale plate and a laser pointer, and the flexibility of the plastic sheet is improved by a heating plate.
It achieves stable fixation of irregularly shaped plastic sheets, avoids indentation, improves product quality and dimensional accuracy, and reduces the defect rate.
Smart Images

Figure CN223777776U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of plastic fence box bending equipment design, specifically relates to a kind of bending device for producing plastic fence box. BACKGROUND
[0002] Plastic product production generally includes plastic batching, forming, machining, joining, finishing and assembly, etc., the last four processes are carried out after the plastic has been formed into products or semi-finished products, also known as plastic secondary processing, and the bending processing of plastic products belongs to the category of machining, which makes plastic products into the shape required by people's production and life through plastic secondary processing of plastic products. Therefore, a bending device is needed to bend plastic plates for producing plastic fence boxes.
[0003] A bending device for producing plastic fence boxes is disclosed in Chinese patent CN219028466U, which includes a support plate, a bending unit, a heating bending unit and a fixing unit. First, a U-shaped bracket is used to fix a stable slide column, which is used to prevent the stable slide block from being more stable. An L-shaped fixing plate is used to fix a hydraulic cylinder, which is used to drive a pressure roller fixing frame to facilitate the fixation of plastic plates. The pressure roller fixing frame is used to fix a pressure roller, which is used to fix plastic plates to fix plastic. Finally, a rotating column is rotated to drive a bending plate to rotate for bending. However, the fixing unit uses a pressure roller to fix the plastic plate. Although this method has good fixing effect on plastic plates with relatively flat surfaces, it is difficult to achieve uniform and stable fixation for plastic plates with irregular shapes or special textures and structures on the surface. Moreover, the fixing method of the pressure roller is likely to leave pressure marks on the surface of the plastic plate, affecting the appearance quality of the product.
[0004] Therefore, the present utility model is proposed. UTILITY MODEL CONTENT
[0005] The technical problem to be solved by the present utility model is to overcome the shortcomings of the prior art and provide a bending device for producing plastic fence boxes to solve the problems raised in the background.
[0006] To solve the above technical problems, the basic concept of the technical solution of the present utility model is as follows:
[0007] The utility model provides a kind of production plastic fence box bending device, it include two fixed plates, it is characterized in that, two described fixed plate between left and right sides are connected with adsorption plate and bending plate respectively, one end of fixed plate and adsorption plate corresponds is connected with concave frame, the bottom end of concave frame is connected with fixed mechanism, one end of fixed plate and bending plate corresponds is connected with scale plate, the right side of fixed plate is connected with fixed frame, sliding plate is slidably connected in fixed frame, heating plate is connected on the surface of sliding plate, and heating plate is below bending plate, the side wall of adsorption plate is connected with vacuum pump, bending plate is rotatably connected with fixed plate by pivot, and one end of pivot is connected with motor.
[0008] Optionally, the fixed mechanism includes a screw rod penetrating through the top end of the concave frame, and the screw rod is threadedly connected with the concave frame, the bottom end of the screw rod is connected with a fixed block, and the bottom end of the fixed block is connected with a rubber block for protecting the surface of the plastic plate, and the bottom end of the rubber block is arc-shaped.
[0009] Optionally, a sliding groove is formed in the top end of the fixed plate, and the bottom end of the concave frame is provided with an extension block, and the extension block is located in the sliding groove.
[0010] Optionally, a lead screw is connected in the sliding groove, the lead screw penetrates through the extension block at the bottom end of the concave frame and is threadedly connected with the extension block.
[0011] Optionally, a scale groove is formed on the surface of the scale plate, the scale groove is arc-shaped, and the arc has the pivot as a center.
[0012] Optionally, a sliding block is connected to the side wall of the bending plate, the sliding block is located in the scale groove, the top end of the sliding block is connected with a laser pen, and the laser pen faces the scale on the surface of the scale groove.
[0013] Optionally, the adsorption plate is divided into four regions, each region is provided with a plurality of adsorption holes on the surface, and the bottom end of each adsorption hole is provided with a gas passage, and the gas passages of the four regions of the adsorption plate are connected with one vacuum pump.
[0014] After the above technical scheme is adopted, the utility model has the following advantages compared with the prior art, of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below:
[0015] 1. By setting the adsorption plate and the fixed mechanism, the adsorption plate is combined with the vacuum pump, the main fixing force is provided for the plastic plate by using the vacuum adsorption force, so that the plate will not be easily moved during processing, and the fixed mechanism can be used as an auxiliary fixing means. When facing special-shaped or heavy plastic plates, the fixed block is lowered by rotating the screw rod to exert additional downward pressure on the plate, further enhancing the fixing effect.
[0016] 2、By setting rubber block, the rubber block at the bottom end of the fixed block is elastic and the bottom end is arc-shaped, which can better fit the surface of the plate, provide uniform pressure distribution and avoid excessive local pressure to damage the plate, and can also adapt to the surface of different shaped plastic plates to ensure the stability of the plate during bending and the consistency of the bending quality;
[0017] 3、By setting the scale plate and laser pen, the operator can intuitively and accurately read the bending plate rotation angle, accurately control the bending angle of the plastic plate, improve the product size precision and overall quality, and reduce the product failure rate caused by angle deviation.
[0018] The specific embodiments of the utility model will be further described in detail below with reference to the drawings. DRAWINGS
[0019] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings. In the drawings:
[0020] Figure 1 It is a whole structure schematic view;
[0021] Figure 2 It is another view of the whole structure schematic view;
[0022] Figure 3 It is a structure schematic view of the bending plate working;
[0023] Figure 4 It is Figure 3 The enlarged structure schematic view of A in the middle.
[0024] In the drawings, the component list represented by each number is as follows:
[0025] 1, fixed plate; 2, adsorption plate; 3, bending plate; 4, scale plate; 41, scale groove; 42, laser pen; 5, concave frame; 6, screw rod; 7, fixed block; 8, rubber block; 9, sliding groove; 10, screw rod; 11, vacuum pump; 12, sliding plate; 13, fixed frame; 14, motor; 15, heating plate; 16, sliding block.
[0026] It should be noted that these drawings and textual descriptions are not intended to limit the concept range of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0027] The utility model will be further described in detail below with reference to the drawings.
[0028] Please refer to Figures 1-4As shown, in this embodiment provides a production plastic fence box with bending device, including: two fixed plate 1, characterized by, two fixed plate 1 between left and right sides are connected with adsorption plate 2 and bending plate 3 respectively, the one end of fixed plate 1 and adsorption plate 2 corresponds is connected with concave frame 5, the bottom of concave frame 5 is connected with fixed mechanism, the one end of fixed plate 1 and bending plate 3 corresponds is connected with scale plate 4, the right side of fixed plate 1 is connected with fixed frame 13, the sliding plate 12 is slidably connected in fixed frame 13, the surface of sliding plate 12 is connected with heating plate 15, and heating plate 15 is located below bending plate 3, the side wall of adsorption plate 2 is connected with vacuum pump 11, bending plate 3 is rotatably connected with fixed plate 1 through pivot, and the one end of pivot is connected with motor 14.
[0029] Fixed plate 1 is the basic support structure of the whole device, the main role of adsorption plate 2 is to fix plastic plate, through cooperation with vacuum pump 11, the plastic plate is tightly adsorbed on its surface by using vacuum adsorption force, to prevent the plate from moving during processing, to provide a stable basis for subsequent bending operation, bending plate 3 is rotatably connected with fixed plate 1 through pivot, and rotates under the drive of motor 14, to exert bending force on the fixed plastic plate, to make it reach the required shape, the fixed mechanism plays the role of auxiliary fixation, although the adsorption plate 2 can fix the plate by vacuum adsorption, but for some special shape or heavy plastic plate, the fixed mechanism can provide additional fixing force, to further enhance the fixing effect, to ensure that the plate will not displace or shake due to external force during bending process, the operator can intuitively understand the rotation angle of bending plate 3 by observing the scale on scale plate 4, to accurately control the bending angle of plastic plate, to meet the precision requirements of different plastic fence boxes on bending angle, heating plate 15 can preheat the plastic plate, the plastic will become soft at a certain temperature, to make it easier to bend, heating plate 15 can make the plastic plate reach the appropriate processing temperature, to reduce its hardness, to improve flexibility, to reduce the situation that the plate is broken or unevenly creased during bending process, sliding plate 12 can slide in fixed frame 13, which makes heating plate 15 can flexibly adjust the position according to plastic plates of different sizes and shapes, to ensure the heating position of the plate is accurate, to realize uniform heating, and to facilitate the maintenance or replacement of heating plate 15.
[0030] In this embodiment, the fixed mechanism includes screw rod 6 penetrating through the top end of concave frame 5, and screw rod 6 is threadedly connected with concave frame 5, the bottom end of screw rod 6 is connected with fixed block 7, the bottom end of rubber block 8 connected with fixed frame 13 is in arc shape, the top end of fixed plate 1 is provided with sliding groove 9, the bottom end of concave frame 5 is provided with extension block, and the extension block is located in sliding groove 9, and the sliding groove 9 is connected with lead screw 10, and the lead screw 10 penetrates through the extension block at the bottom end of concave frame 5 and is threadedly connected with the extension block.
[0031] The bottom end of the screw 6 is connected to the fixing block 7. When the screw 6 is rotated, the fixing block 7 will change position as the screw 6 moves up and down. After the plastic sheet is placed on the adsorption plate 2, the fixing block 7 can be lowered by rotating the screw 6, thereby applying downward pressure to the plastic sheet and further fixing the sheet, preventing it from shifting due to external force during processing. The rubber block 8 has a certain elasticity, which allows it to better fit the surface of the plastic sheet when in contact with it, providing a more uniform pressure distribution and avoiding damage to the plastic sheet due to excessive local pressure. At the same time, the arc-shaped design helps to adapt to the surface of plastic sheets of different shapes, enhancing the fixing effect. The concave frame 5 can slide along the direction of the slide groove 9 on the fixing plate 1 through the extension block at the bottom of the screw 10 and the concave frame 5. Through this sliding connection, the position of the concave frame 5 can be adjusted according to actual processing needs. For example, for plastic sheets of different sizes, the position of the fixing mechanism can be flexibly changed to better fix the sheet 1.
[0032] The scale plate 4 has a scale groove 41 on its surface. The scale groove 41 is arc-shaped, and the arc is centered on the pivot. Utilizing the principle that the bending plate 3 rotates around the pivot, the scale groove 41 can accurately reflect the rotation angle of the bending plate 3. The scale groove 41 is marked with graduations. By reading the graduations, the operator can intuitively understand the current rotation angle of the bending plate 3, thereby precisely controlling the bending angle of the plastic sheet. A slider 16 is connected to the side wall of the bending plate 3. The slider 16 is located in the scale groove 41. A laser pointer 42 is connected to the top of the slider 16, and the laser pointer 42 faces the graduations on the surface of the scale groove 41. When the bending plate 3 rotates, the laser pointer 42 moves with the slider 16 and illuminates the graduations on the scale groove 41. In this way, the operator can read the graduations more clearly and accurately. Especially in a dimly lit working environment, the indicating effect of the laser pointer 42 is more obvious, further improving the accuracy and convenience of reading the graduations and helping to achieve more precise bending angle control.
[0033] The adsorption plate 2 is divided into four regions. Each region has multiple adsorption holes on its surface and a gas channel at the bottom of each adsorption hole. The gas channels of the four regions of the adsorption plate 2 are all connected to a vacuum pump 11.
[0034] The zoned design helps to achieve more flexible adsorption and fixation of plastic sheets of different sizes and shapes. The presence of multiple adsorption holes increases the adsorption area and improves the adsorption force. Each adsorption hole has a gas channel at the bottom, which connects the adsorption hole to the vacuum pump 11, ensuring that a uniform negative pressure can be formed on the surface of the adsorption plate 2 when the vacuum pump 11 is working, thereby effectively adsorbing the plastic sheet.
[0035] Working principle:
[0036] First, the plastic sheet to be bent is placed on the adsorption plate 2, the vacuum pump 11 is started, and a negative pressure is formed on the surface of the adsorption plate 2 through the adsorption holes and gas channels on the adsorption plate 2, so that the plastic sheet is tightly adsorbed. According to the size of the plastic sheet, the position of the concave frame 5 and the fixing mechanism is adjusted by rotating the lead screw 10, so that the fixing block 7 is aligned with the appropriate position of the sheet. At the same time, according to the material and thickness of the sheet, the heating plate 15 is adjusted to the appropriate position through the sliding plate 12, and the heating temperature is set. The heating plate 15 is turned on to preheat the plastic sheet. During the heating process, the sheet is heated to a suitable temperature by controlling the heating time and temperature, and the motor 14 is started. The motor 14 drives the rotating shaft to rotate, and then the bending plate 3 rotates around the rotating shaft. The operator controls the rotation angle of the bending plate 3 by observing the scale irradiated by the laser pen 42 on the scale plate 4, applies bending force to the plastic sheet, completes the bending operation, turns off the motor 14, the heating plate 15 and the vacuum pump 11, takes down the processed plastic sheet box part, resets each part, and prepares for the next processing.
[0037] The utility model is not limited to the above-mentioned embodiment, anyone should know the structural change made under the inspiration of the utility model, any technical scheme with the same or similar to the utility model falls into the protection scope of the utility model. The utility model is not described in detail, and the technical, shape and structure part is the known technology.
Claims
1. A bending device for producing plastic pallet boxes, comprising: Two fixing plates (1), characterized in that an adsorption plate (2) and a bending plate (3) are respectively connected on the left and right sides between the two fixing plates (1), a concave frame (5) is connected to one end of the fixing plate (1) corresponding to the adsorption plate (2), a fixing mechanism is connected to the bottom end of the concave frame (5), and a scale plate (4) is connected to one end of the fixing plate (1) corresponding to the bending plate (3). A fixed frame (13) is connected to the right side of the fixed plate (1), and a sliding plate (12) is slidably connected inside the fixed frame (13). A heating plate (15) is connected to the surface of the sliding plate (12), and the heating plate (15) is located below the bending plate (3). The adsorption plate (2) is connected to a vacuum pump (11) on its side wall. The bending plate (3) is rotatably connected to the fixed plate (1) via a rotating shaft, and a motor (14) is connected to one end of the rotating shaft.
2. The bending device for producing plastic pallet boxes according to claim 1, characterized in that: The fixing mechanism includes a screw (6) that passes through the top of the concave frame (5) and is threadedly connected to the concave frame (5). A fixing block (7) is connected to the bottom end of the screw (6). A rubber block (8) for protecting the surface of the plastic board is connected to the bottom end of the fixing block (7), and the bottom end of the rubber block (8) is arc-shaped.
3. The bending device for producing plastic pallet boxes according to claim 1, characterized in that: The top of the fixed plate (1) is provided with a groove (9), and the bottom of the concave frame (5) is provided with an extension block, which is located in the groove (9).
4. The bending device for producing plastic pallet boxes according to claim 3, characterized in that: A lead screw (10) is connected inside the groove (9). The lead screw (10) passes through the extension block at the bottom of the concave frame (5) and is threadedly connected to the extension block.
5. A bending device for producing plastic pallet boxes according to claim 1, characterized in that: The scale plate (4) has a scale groove (41) on its surface. The scale groove (41) is arc-shaped and the arc is centered on the axis of rotation.
6. A bending device for producing plastic pallet boxes according to claim 5, characterized in that: The side wall of the bent plate (3) is connected to a slider (16), the slider (16) is located in the scale groove (41), the top of the slider (16) is connected to a laser pointer (42), and the laser pointer (42) faces the scale on the surface of the scale groove (41).
7. A bending device for producing plastic pallet boxes according to claim 1, characterized in that: The adsorption plate (2) is divided into four regions. Each region has multiple adsorption holes on its surface and a gas channel at the bottom of each adsorption hole. The gas channels of the four regions of the adsorption plate (2) are all connected to a vacuum pump (11).
Citation Information
Patent Citations
Bending device for producing plastic coaming box
CN219028466U