Polyurethane foaming integrated molding corner processing tool
By setting an adjustable limiting device on the trimming machine to adapt to polyurethane foam integral molding objects of different sizes, the complexity and low efficiency caused by the mismatch of the limiting ring block size are solved, and efficient trimming processing is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU JIAHENG RUBBER PLASTIC PROD CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-02
AI Technical Summary
Since the dimensions of polyurethane foam integral molded objects that require trimming are usually not fixed, while the limiting ring blocks used for positioning are generally of fixed size, it is necessary to frequently change the limiting ring blocks of different sizes when trimming circular polyurethane foam integral molded objects of different sizes. This increases the complexity of the operation and time cost, and reduces production efficiency.
An edge and corner processing tool was designed, including an edge trimming machine, a sliding frame, and a turntable. The turntable is equipped with an adjustable limit device, which can change the distance between the limit blocks through the adjustment mechanism to adapt to circular polyurethane foam integral molded objects of different diameters. The edge trimming is carried out by a motor or hydraulic drive.
By adjusting the limiting device, the number of steps to replace the limiting ring block is reduced, thus lowering time costs and the workload of operators, and improving the production efficiency of polyurethane foam integral molding objects.
Smart Images

Figure CN224311043U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of edge and corner treatment tools, and in particular to an integrated polyurethane foam edge and corner treatment tool. Background Technology
[0002] Edge finishing tools are mainly used to remove edge residues and irregular parts generated during the foaming process to ensure the quality and appearance of the molded product.
[0003] After polyurethane foaming and molding, excess residue and irregularities may remain on the surface. These typically require subsequent cleaning with a trimming machine. When using a trimming machine to clean the surface of a circular polyurethane foam molded object, the object is placed on the outer surface of a limiting ring on a turntable. The internal drive mechanism of the trimming machine then moves a sliding frame back and forth on one side of the machine as needed. Simultaneously, the internal drive mechanism of the sliding frame also activates, moving the cutting blade up and down or left and right towards the outer surface of the polyurethane foam molded object. This drive mechanism can be a motor driving a threaded rod. It can also be hydraulically driven, so there is no fixed limitation. Then, the drive motor inside the trimming machine is started to drive the turntable to rotate, which can drive the polyurethane foam integral molded object to rotate and cut off the irregular residue on its surface. Since the size of the polyurethane foam integral molded object that needs to be trimmed is usually not fixed, while the limiting ring block used for limiting is usually of a fixed size, it is necessary to frequently change the limiting ring block of different sizes when trimming circular polyurethane foam integral molded objects of different sizes. This increases the complexity of operation, time cost, and workload of operators, and reduces the production efficiency of polyurethane foam integral molded objects. Utility Model Content
[0004] The technical problem this invention aims to solve is that the dimensions of polyurethane foam integral molded objects that require trimming are usually not fixed, while the limiting ring blocks used for positioning are generally of fixed size. This results in the need to frequently change the limiting ring blocks of different sizes when trimming circular polyurethane foam integral molded objects of different sizes, which increases the complexity of operation, time cost, and workload of operators, and reduces the production efficiency of polyurethane foam integral molded objects.
[0005] The technical solution adopted by this utility model to solve its technical problem is: an edge and corner processing tool, including an edge trimming machine. A sliding frame is slidably installed on one side of the edge trimming machine, and an edge cutting knife is provided on one side of the sliding frame. A turntable is provided on one side of the edge trimming machine, and an adjustment and limiting device is provided on one side of the turntable. The adjustment and limiting device can adjust the distance between several limiting blocks through an adjustment mechanism to change the size of the outer surface, thereby limiting the circular polyurethane foam integral molding objects of different diameters and facilitating subsequent edge trimming.
[0006] The effect achieved by the above components is as follows: After polyurethane foaming and molding into an integral molded object, there will be excess residue and irregular parts on the surface. Usually, it is necessary to use an edge trimming machine to clean the surface of the polyurethane foam integral molded object later. When using the edge trimming machine to clean the surface of a circular polyurethane foam integral molded object, first, according to the required diameter size of the polyurethane foam integral molded object, start the adjustment and limiting device to adjust several limiting blocks to a certain size so that they fit the polyurethane foam integral molded object to be processed and fix it. Then, the polyurethane foam integral molded object can be placed on the outer surface of the adjusted limiting blocks. Then, start the drive mechanism inside the edge trimming machine to drive the sliding frame to slide back and forth on one side of the edge trimming machine according to the usage requirements. At the same time, according to the trimming requirements, start the drive mechanism inside the sliding frame to drive the cutting blade to move up and down or left and right to approach the outer surface of the polyurethane foam integral molded object. The drive mechanism here can be a motor driving a threaded rod or a hydraulic drive, so there is no fixed limitation. Then, start the drive motor inside the edge trimming machine to drive the turntable to rotate, thereby driving the polyurethane foam integral molded object to rotate and cut off the irregular residue on its surface.
[0007] Preferably, the adjusting and limiting device includes a plurality of sliding rods, a plurality of sliding grooves are provided on one side of the turntable, and the sliding rods are slidably installed in the inner wall of the sliding grooves; a plurality of limiting blocks, wherein one side of the plurality of limiting blocks is respectively fixedly installed on one side of the plurality of sliding rods; and a limiting mechanism, wherein the limiting mechanism is disposed on one side of the turntable at a position between the plurality of limiting blocks, for pushing the plurality of limiting blocks outward for adjusting and limiting.
[0008] The effect achieved by the above-mentioned components is as follows: by setting an adjustment limit device, before the trimming process, the adjustment mechanism can be activated to push several limit blocks outward, causing the slide rod to slide outward in the inner wall of the slide groove and be limited, thereby limiting the circular polyurethane foam integral molding objects of various diameter sizes, which facilitates the subsequent trimming process. Through this adjustment, the operation steps of replacement, disassembly, installation and replacement can be reduced, reducing time costs and the workload of operators, and improving the production efficiency of polyurethane foam integral molding objects.
[0009] Preferably, the adjusting mechanism includes a plurality of abutment blocks, wherein one side of the abutment block is fixedly mounted on one side of the limiting block; an electric telescopic rod, wherein one end of the electric telescopic rod is fixedly mounted on one side of the turntable; a conical block, wherein one side of the conical block is fixedly mounted on the output rod of the electric telescopic rod, and one end of its outer surface abuts against one side of the plurality of abutment blocks; and a plurality of springs, wherein the two ends of the plurality of springs are respectively fixedly mounted on one side of the plurality of sliding rods and one side of the inner wall of the plurality of sliding grooves.
[0010] The effect achieved by the above components is as follows: By setting an adjustment mechanism, when it is necessary to adjust several limit blocks, the electric telescopic rod can be activated to drive the conical block to move upward, so that one end of its outer surface abuts against one side of several abutment blocks, pushing it outward, causing the limit block to slide to one end in the inner wall of the slide groove by means of the slide rod, so that its spring is stretched open, and at the same time the spring will reset the slide rod, so that the limit block can be tightly attached to the conical block, thereby changing the diameter size, which facilitates the subsequent limit fixing treatment of polyurethane foam integral molded objects of various diameter sizes.
[0011] Preferably, the adjustment mechanism further includes several reinforcing rods, wherein the two ends of the reinforcing rods are respectively fixedly installed on one side of the output rod of the electric telescopic rod and the conical block.
[0012] The effect achieved by the above components is that by setting up reinforcing rods, the connection area between the output rod of the electric telescopic rod and the conical block can be increased, making the connection more solid and less prone to breakage or damage.
[0013] Preferably, the adjustment mechanism further includes a plurality of spheres, wherein the plurality of spheres are rotatably mounted on the side of the abutment block near the conical block.
[0014] The effect achieved by the above components is that by setting the sphere, the friction between the abutment block and the cone block can be reduced, making it easier to push and adjust.
[0015] Preferably, the adjustment mechanism further includes several limiting telescopic rods, wherein the outer surface of the limiting telescopic rods is installed through the inner wall of the spring, and both ends are respectively fixedly installed on one side of several sliding rods and one side of the inner wall of several sliding grooves.
[0016] The effect achieved by the above components is that by setting the limiting telescopic rod, the inner wall of the spring can be supported and reinforced, making it less prone to damage during use and increasing its service life.
[0017] Preferably, a cleaning device is provided between the turntable and the plurality of limiting blocks. The cleaning device includes an air guide frame, wherein one side of the air guide frame is fixedly installed on one side of the turntable; an air pump, wherein the outlet of the air pump is installed through one side of the air guide frame; a plurality of air spray frames, wherein one end of the air spray frame is installed through one side of the limiting block; and a plurality of corrugated hoses, wherein one end of the corrugated hoses is installed through one side of one end of the air guide frame, and the other end is fixedly installed on one end of the air spray frame.
[0018] The effect achieved by the above components is as follows: by setting up a cleaning device, when the polyurethane foam integral molded object is placed on several limiting blocks for limiting and trimming, the air pump can be started to draw air into the air guide frame, and then delivered to the inside of the air spray frame through the corrugated hose, and then sprayed out to blow clean the cutting position, blowing away the trimmed object to avoid affecting the subsequent cutting and trimming operations.
[0019] Preferably, the cleaning device further includes a plurality of filters, wherein the filters are fixedly installed in the inner wall of the outlet of the air spray frame.
[0020] The effect achieved by the above components is that by setting up a filter screen, the inner wall of the outlet of the air spray frame can be protected, making it difficult for external dust and impurities to enter the interior of the air spray frame and cause blockage, thus improving its service life.
[0021] The beneficial effects of this utility model are:
[0022] By setting an adjustment limit device, before trimming, the adjustment mechanism can be activated to push several limit blocks outward, causing the slide rod to slide outward and be limited in the inner wall of the slide groove. This allows for the limitation of circular polyurethane foam integral molding objects of various diameters, facilitating subsequent trimming. This adjustment reduces the number of replacement, disassembly, and installation steps, reducing time costs and operator workload, and improving the production efficiency of polyurethane foam integral molding objects. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Figure 1 This is a schematic diagram of the structure of this utility model.
[0025] Figure 2 This is a three-dimensional structural diagram of the turntable of this utility model;
[0026] Figure 3 for Figure 2 Enlarged 3D structural diagram at point A in the middle;
[0027] Figure 4This is a three-dimensional structural diagram of the electric telescopic pole of this utility model;
[0028] Figure 5 for Figure 4 A three-dimensional schematic diagram of a local structure.
[0029] Legend: 1. Trimming machine; 2. Adjusting limit device; 3. Cleaning device; 4. Sliding frame; 5. Edge trimmer; 6. Turntable; 21. Slide groove; 22. Slide rod; 23. Limiting block; 24. Adjusting mechanism; 241. Abutting block; 242. Electric telescopic rod; 243. Conical block; 244. Reinforcing rod; 245. Ball; 246. Spring; 247. Limiting telescopic rod; 31. Air guide frame; 32. Air pump; 33. Corrugated hose; 34. Air spray frame; 35. Filter screen. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Figure 1-5The polyurethane foam integrated molding edge and corner treatment tool shown includes an edge trimming machine 1. A sliding frame 4 is slidably installed on one side of the edge trimming machine 1. A cutting blade 5 is provided on one side of the sliding frame 4. A turntable 6 is provided on one side of the edge trimming machine 1. An adjusting limit device 2 is provided on one side of the turntable 6. The adjusting limit device 2 can adjust the distance between several limit blocks 23 through the adjusting mechanism 24 to change the size of the outer surface, so as to limit the circular polyurethane foam integrated molding objects of different diameters and facilitate subsequent edge trimming. After polyurethane foaming and molding, there will be excess residue and irregular parts on the surface. These usually require cleaning with a trimming machine 1. When using the trimming machine 1 to clean the surface of a circular polyurethane foam molded object, first, based on the required diameter of the polyurethane foam molded object, start the adjusting limiting device 2 to adjust several limiting blocks 23 to a certain size, fitting them to the polyurethane foam molded object to be processed and fixing them in place. Then, place the polyurethane foam molded object onto the outer surface of the adjusted limiting blocks 23. Next, start the internal drive mechanism of the trimming machine 1 to drive the sliding frame 4 to slide back and forth on one side of the trimming machine 1 according to the usage requirements. Simultaneously, according to the trimming requirements, start the internal drive mechanism of the sliding frame 4 to drive the cutting blade 5 to move up and down or left and right towards the outer surface of the polyurethane foam molded object. This drive mechanism can be a motor-driven threaded rod or a hydraulic drive, so no fixed limitation is made. Then, start the internal drive motor of the trimming machine 1 to drive the turntable 6 to rotate, thereby rotating the polyurethane foam molded object and removing the irregular residue on its surface.
[0033] Figure 1-5 The adjustable limiting device 2 shown includes several sliding rods 22, several sliding grooves 21 are provided on one side of the turntable 6, and the sliding rods 22 are slidably installed in the inner wall of the sliding grooves 21; several limiting blocks 23, one side of each limiting block 23 is fixedly installed on one side of each sliding rod 22; and a limiting mechanism, which is located on one side of the turntable 6 between the limiting blocks 23, and is used to push the limiting blocks 23 outward for adjustment and limiting. Before trimming, the adjusting mechanism 24 can be activated to push the limiting blocks 23 outward, causing the sliding rods 22 to slide outward in the inner wall of the sliding grooves 21 and be limited, thereby limiting the size of circular polyurethane foam integral molded objects of various diameters, facilitating subsequent trimming. This adjustment reduces the number of replacement, disassembly, and installation steps, reduces time costs and operator workload, and improves the production efficiency of polyurethane foam integral molded objects.
[0034] Figure 1-5The adjustment mechanism 24 shown includes several abutment blocks 241, one side of which is fixedly mounted on one side of the limiting block 23; an electric telescopic rod 242, one end of which is fixedly mounted on one side of the turntable 6; a conical block 243, one side of which is fixedly mounted on the output rod of the electric telescopic rod 242, and one end of which has its outer surface abutting against one side of the several abutment blocks 241; and several springs 246, the two ends of which are respectively fixedly mounted on one side of several sliding rods 22 and one side of the inner wall of several sliding grooves 21. When adjustment of several limiting blocks 23 is required, the electric telescopic rod 242 can be activated to move the conical block 243 upward, so that one end of its outer surface abuts against one side of several abutment blocks 241, pushing it outward. This causes the limiting block 23 to slide to one end in the inner wall of the slide groove 21 via the slide rod 22, stretching its spring 246. At the same time, the spring 246 will reset the slide rod 22, allowing the limiting block 23 to be tightly attached to the conical block 243, thereby changing the diameter size. This facilitates the subsequent limiting and fixing of polyurethane foam integral molded objects of various diameter sizes. The adjustment mechanism 24 also includes several reinforcing rods 244, with both ends of the reinforcing rods 244 fixedly installed on the output rod of the electric telescopic rod 242 and one side of the conical block 243, respectively. By setting the reinforcing rods 244, the connection area between the output rod of the electric telescopic rod 242 and the conical block 243 can be increased, making the connection more secure and less prone to breakage. The adjusting mechanism 24 also includes several balls 245, which are rotatably mounted on the side of the abutment block 241 near the conical block 243. By using the balls 245, the frictional force between the abutment block 241 and the conical block 243 can be reduced, making it easier to push and facilitating adjustment. The adjusting mechanism 24 also includes several limiting telescopic rods 247, whose outer surfaces are installed through the inner wall of the spring 246, and whose two ends are respectively fixed to one side of several sliding rods 22 and one side of the inner wall of several sliding grooves 21. By using the limiting telescopic rods 247, the inner wall of the spring 246 can be supported and reinforced, making it less prone to damage during use and extending its service life.
[0035] Figure 1-5A cleaning device 3 is provided between the turntable 6 and several limiting blocks 23. The cleaning device 3 includes an air guide frame 31, one side of which is fixedly installed on one side of the turntable 6; an air pump 32, the outlet of which is installed through one side of the air guide frame 31; several air spray frames 34, one end of which is installed through one side of the limiting block 23; and several corrugated hoses 33, one end of which is installed through one side of one end of the air guide frame 31, and the other end is fixedly installed on one end of the air spray frame 34. When the polyurethane foam integral molded object is placed on the several limiting blocks 23 for limiting and trimming, the air pump 32 can be started to draw air into the air guide frame 31, and then delivered to the inside of the air spray frame 34 through the corrugated hoses 33, and then sprayed out to blow and clean the cutting position, blowing away the trimmed object to avoid affecting the subsequent cutting and trimming operations.
[0036] Figure 1-5 The cleaning device 3 shown also includes several filters 35, which are fixedly installed in the inner wall of the outlet of the air spray frame 34. By setting the filters 35, the inner wall of the outlet of the air spray frame 34 can be protected, making it difficult for external dust and impurities to enter the interior of the air spray frame 34 and cause blockage, thus improving its service life.
[0037] Working principle: After polyurethane foaming and molding an integral object, there will be excess residue and irregular parts on the surface. Usually, a trimming machine 1 is needed to clean the surface. When using the trimming machine 1 to clean the surface of a circular integral polyurethane foam object, first, based on the required diameter of the integral polyurethane foam object, start the electric telescopic rod 242 to move the conical block 243 upwards. This causes one end of the conical block 243 to abut against one side of several abutment blocks 241, pushing it outwards. This causes the limiting block 23 to slide towards one end in the inner wall of the slide groove 21 via the sliding rod 22, stretching its spring 246. Simultaneously, the spring 246 resets the sliding rod 22, allowing the limiting block 23 to tightly adhere to the conical block 243. The diameter is changed by adjusting the size of the polyurethane foam integral molded object. Then, the polyurethane foam integral molded object can be placed on the outer surface of the adjusted limiting block 23. Then, the drive mechanism inside the trimming machine 1 is started to drive the sliding frame 4 to slide back and forth on one side of the trimming machine 1 according to the usage requirements. At the same time, according to the trimming requirements, the drive mechanism inside the sliding frame 4 is started to drive the cutting blade 5 to move up and down or left and right to approach the outer surface of the polyurethane foam integral molded object. The drive mechanism here can be a motor-driven threaded rod drive or a hydraulic drive, so there is no fixed limitation. Then, the drive motor inside the trimming machine 1 is started to drive the turntable 6 to rotate, thereby driving the polyurethane foam integral molded object to rotate and remove irregular residues on its surface.
[0038] When the polyurethane foam integral molded object is placed on several limiting blocks 23 for limiting and trimming, the air pump 32 can be started to draw air into the air guide frame 31, and then transported to the inside of the air spray frame 34 through the corrugated hose 33, and then sprayed out to blow clean the cutting position and blow away the trimmed object to avoid affecting the subsequent cutting and trimming operations.
[0039] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A tool for edge treatment of polyurethane foam integral molding, including an edge trimming machine (1), characterized in that: A sliding frame (4) is slidably mounted on one side of the trimming machine (1), and a cutting blade (5) is provided on one side of the sliding frame (4). A turntable (6) is provided on one side of the trimming machine (1), and an adjustment limiting device (2) is provided on one side of the turntable (6). The adjustment limiting device (2) can change the size of the outer surface by adjusting the distance between several limiting blocks (23) through the adjustment mechanism (24).
2. The polyurethane foam integrated molding edge and corner treatment tool according to claim 1, characterized in that: The adjusting limit device (2) includes several slide rods (22), and several slide grooves (21) are provided on one side of the turntable (6). The slide rods (22) are slidably installed in the inner wall of the slide grooves (21). A number of limiting blocks (23), wherein one side of each of the limiting blocks (23) is fixedly installed on one side of a number of sliding rods (22); The limiting mechanism is located on one side of the turntable (6) between several limiting blocks (23) and is used to push the several limiting blocks (23) outward for adjustment and limiting.
3. The polyurethane foam integrated molding edge and corner treatment tool according to claim 2, characterized in that: The adjustment mechanism (24) includes a plurality of abutment blocks (241), wherein one side of the abutment block (241) is fixedly installed on one side of the limiting block (23); An electric telescopic pole (242), wherein one end of the electric telescopic pole (242) is fixedly installed on one side of the turntable (6); A conical block (243), wherein one side of the conical block (243) is fixedly mounted on the output rod of the electric telescopic rod (242), and one end of its outer surface abuts against one side of several abutting blocks (241); Several springs (246) are provided, with the two ends of several springs (246) fixedly installed on one side of several sliding rods (22) and one side of the inner wall of several sliding grooves (21).
4. The polyurethane foam integrated molding edge and corner treatment tool according to claim 3, characterized in that: The adjustment mechanism (24) also includes several reinforcing rods (244), wherein the two ends of the reinforcing rods (244) are respectively fixedly installed on the output rod of the electric telescopic rod (242) and one side of the conical block (243).
5. The polyurethane foam integrated molding edge and corner treatment tool according to claim 3, characterized in that: The adjustment mechanism (24) also includes a plurality of spheres (245), wherein the plurality of spheres (245) are rotatably mounted on the side of the abutment block (241) near the conical block (243).
6. The polyurethane foam integrated molding edge and corner treatment tool according to claim 3, characterized in that: The adjustment mechanism (24) also includes several limiting telescopic rods (247), wherein the outer surface of the limiting telescopic rods (247) is installed through the inner wall of the spring (246), and both ends are respectively fixedly installed on one side of several sliding rods (22) and one side of the inner wall of several sliding grooves (21).
7. The polyurethane foam integrated molding edge and corner treatment tool according to claim 2, characterized in that: A cleaning device (3) is provided between the turntable (6) and several limiting blocks (23). The cleaning device (3) includes an air guide frame (31), wherein one side of the air guide frame (31) is fixedly installed on one side of the turntable (6). An air pump (32) is installed through the outlet of the air pump (32) on one side of the air guide frame (31); Several air spray frames (34), one end of which is installed through one side of the limiting block (23); Several corrugated hoses (33), one end of which is installed through one side of the air guide frame (31), and the other end is fixedly installed on one end of the air spray frame (34).
8. The polyurethane foam integrated molding edge and corner treatment tool according to claim 7, characterized in that: The cleaning device (3) also includes several filters (35), wherein the filters (35) are fixedly installed in the inner wall of the outlet of the air spray frame (34).