An end surface trimming device for PVC hose processing

Abstract

The present invention relates to the technical field of hose processing, and in particular to an end face finishing device for PVC hose processing, comprising a flow guide collection box, an axis positioning mechanism and a comprehensive grinding head, wherein a grinding chamber is arranged inside the flow guide collection box, the axis positioning mechanism is installed inside the flow guide collection box, the top of the axis positioning mechanism extends to the feed port of the flow guide collection box, the axis positioning mechanism is used to expand and fix the inner wall of a pipe, the comprehensive grinding head is installed outside the axis positioning mechanism, and the comprehensive grinding head is used to comprehensively grind the end face of the hose. The present invention can effectively improve processing efficiency and product quality.

Description

Technical Field

[0001] The invention relates to the technical field of hose processing, in particular to an end face trimming device for PVC hose processing. Background Art

[0002] PVC pipe, polyvinyl chloride pipe, is made of polyvinyl chloride resin with stabilizers, lubricants, etc. and then extruded by hot pressing. It is the earliest plastic pipe developed and applied. The pipe has strong corrosion resistance, easy bonding, low price and hard texture. However, due to the leakage of PVC-u monomer and additives, it is only suitable for water supply systems with a conveying temperature not exceeding 45°C. Plastic pipes are used for drainage, wastewater, chemicals, heating liquids and cooling liquids, food, ultra-pure liquids, mud, gas, compressed air and vacuum system applications.

[0003] Chinese patent CN213438794U discloses a grinding and processing device for PVC pipes, including an operating box, a control panel is fixedly installed in the middle of the upper end of the operating box, an operating button is fixedly installed on the upper end of the control panel, a universal wheel is fixedly installed on the side of the bottom end of the operating box, a storage table is fixedly installed on the left side below the operating box, a cutting groove is fixedly set in the middle of the storage table, an inlet and outlet groove is fixedly set above the right end of the storage table, and the right end of the inlet and outlet groove extends to the inside of the operating box, and a laser indicator is fixedly installed at the lower end of the left side of the operating box, and the upper end of the laser indicator extends to the inside of the operating box. The grinding and processing device for PVC pipes, through the mutual cooperation of various components in the device, makes the device as a whole more reasonable and humanized, effectively improves the working efficiency of the device, and can remove the debris in the work after the device is working, improves the cleanliness of the PVC pipe, and also facilitates the device to perform various tasks.

[0004] In the prior art, although the outer edge and the plane of the pipe orifice can be polished by rotating the sandpaper layer, the polishing effect on the inner corners of the pipe orifice is not ideal. These corners are often difficult to be effectively reached by traditional polishing tools due to their special structure, resulting in insufficient polishing. At the same time, when polishing the hose, due to the softness and deformability of the hose itself, it is difficult for the operator to maintain stable contact between the hose mouth and the sandpaper layer. This causes the position and angle of the hose mouth to change easily during the polishing process, thereby affecting the polishing effect and operating efficiency. Summary of the invention

[0005] In view of the above problems, an end face trimming device for PVC hose processing is provided. The end face trimming device for PVC hose processing can achieve comprehensive, efficient and stable grinding of the hose end face, solves the problems encountered by traditional grinding tools when grinding inner corners and hoses, and improves processing efficiency and product quality.

[0006] In order to solve the problems of the prior art, the present invention provides an end face finishing device for PVC hose processing, comprising a diversion collection box, an axis positioning mechanism and a comprehensive grinding head, wherein a grinding chamber is arranged inside the diversion collection box, the axis positioning mechanism is installed inside the diversion collection box, the top of the axis positioning mechanism extends toward the feed port of the diversion collection box, the axis positioning mechanism is used to expand and fix the inner wall of the pipe, the comprehensive grinding head is installed on the outside of the axis positioning mechanism, and the comprehensive grinding head is used to comprehensively grind the end face of the hose.

[0007] Preferably, the full grinding head includes a rotating mounting seat installed on the outside of the axial positioning mechanism, on which a magnetic buffer mounting mechanism and a multi-angle buffer mounting mechanism are symmetrically installed, a flat grinding head is installed on the magnetic buffer mounting mechanism, and two-side synchronous grinding heads are installed on the multi-angle buffer mounting mechanism. The full grinding head also includes a transmission connecting seat installed on the diversion collection box, and multiple transmission connecting shafts are installed between the transmission connecting seat and the rotating mounting seat.

[0008] Preferably, the magnetic absorption buffer installation mechanism comprises a first installation rail installed on the rotating installation seat, a magnetic absorption installation block is installed in the first installation rail, and a first buffer spring is installed between the magnetic absorption installation block and the first installation rail.

[0009] Preferably, a first clamping base is provided at the bottom of the plane grinding head, and a parallel grinding surface is provided at the top of the plane grinding head.

[0010] Preferably, the multi-angle buffer mounting mechanism includes a second mounting rail mounted on a rotating mounting seat, an adjusting screw is mounted on the second mounting rail, a push adjustment plate and a sliding mounting block are also mounted inside the second mounting rail, a second buffer spring is installed between the sliding mounting block and the second mounting rail, the push adjustment plate is threadedly connected to the adjusting screw, a lifting mounting block is installed on the top of the sliding mounting block, the lifting mounting block is used for clamping and mounting the synchronous grinding heads on both sides, and a third buffer spring is installed between the lifting mounting block and the sliding mounting block.

[0011] Preferably, a second clamping base is provided at the bottom of the synchronous grinding heads on both sides, a V-shaped resistance block is provided at the top of the synchronous grinding heads on both sides, and an inclined grinding surface is provided on the inner wall of the V-shaped resistance block.

[0012] Preferably, the axial positioning mechanism includes a vertical mounting shaft arranged inside the diversion and collection box, a plurality of limit mounting rails are provided on the vertical mounting shaft, an adaptive expansion mechanism is installed inside the limit mounting rail, an inner wall resistance strip is installed at the expansion end of the adaptive expansion mechanism, and the adaptive expansion mechanism is fixedly connected to the diversion and collection box.

[0013] Preferably, the adaptive expansion mechanism includes a first connecting rod installed in the limit mounting rail, and the adaptive expansion mechanism also includes a connecting block installed inside the limit mounting rail, a second connecting rod is also installed on the connecting block, the movable ends of the second connecting rod and the first connecting rod are connected to each other, a pushing connecting shaft is also installed at the bottom of the connecting block, the pushing connecting shaft passes through the vertical mounting shaft and extends outward, a connecting base is also installed at the end of the pushing connecting shaft away from the connecting block, the bottom of the connecting base is connected to the diversion collection box, and a reset spring is also installed between the connecting base and the vertical mounting shaft.

[0014] Preferably, a collection filter layer is provided inside the diversion collection box, a polished cavity is provided on the upper layer of the collection filter layer, and a suction fan for sucking air is installed on the bottom layer of the collection filter layer.

[0015] Preferably, an outer wall limit guide mechanism is installed at the feed port position of the diversion collection box, and the outer wall limit guide mechanism includes a limit mounting plate, a plurality of limit slide rails are provided on the limit mounting plate, and adjustment guide rods are installed inside the limit slide rails. An adjustment turntable is installed on the limit mounting plate, and a plurality of inclined adjustment rails are provided on the adjustment turntable, and the inclined adjustment rails are connected to the adjustment guide rods.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This device can achieve comprehensive grinding of the end face of the PVC hose through the designed comprehensive grinding head. Whether it is the outer edge, plane or hard-to-reach inner corner, it can be fully processed, thereby improving processing efficiency and product quality.

[0018] 2. The design of the axis positioning mechanism can ensure that the hose will not rotate or deform unnecessarily during the grinding process, thereby ensuring the accuracy and stability of the grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a three-dimensional schematic diagram of an end surface trimming device for PVC hose processing.

[0020] Figure 2 The diagram is a front view of an end surface trimming device for PVC hose processing.

[0021] Figure 3 yes Figure 2 Plane section view at section AA.

[0022] Figure 4 yes Figure 3 A three-dimensional schematic diagram of .

[0023] Figure 5 The present invention is a three-dimensional schematic diagram of a full-surface grinding head and an axis positioning mechanism in an end surface finishing device for PVC hose processing.

[0024] Figure 6 It is a planar cross-sectional stereoscopic diagram of a full-surface grinding head and an axis center positioning mechanism in an end surface finishing device for PVC hose processing.

[0025] Figure 7 The present invention is a three-dimensional schematic diagram of a full-surface grinding head in an end surface finishing device for processing a PVC hose.

[0026] Figure 8 It is a planar cross-sectional stereoscopic view of a full-surface grinding head in an end surface finishing device for PVC hose processing.

[0027] Fig. 9 yes Figure 8 A partial enlarged view of point B in the middle.

[0028] Fig.10 yes Figure 8 A partial enlarged view of point C in the middle.

[0029] The numbers in the figure are:

[0030] 1. Full grinding head; 11. Rotating mounting seat; 111. Transmission connecting shaft; 12. Magnetic buffer mounting mechanism; 121. First mounting rail; 122. Magnetic mounting block; 1221. First mounting slot; 123. First buffer spring; 13. Plane grinding head; 131. First clamping base; 132. Parallel grinding surface; 14. Multi-angle buffer mounting mechanism; 141. Second mounting rail; 142. Adjusting screw rod; 143. Pushing adjustment plate; 144. Sliding mounting block; 145. Second buffer spring; 146. Lifting mounting block; 1461. Second mounting slot; 147. Third buffer spring; 15. Synchronous grinding heads on both sides; 151. Second clamping base; 152 , V-shaped resistance block; 153, inclined polished surface; 16, transmission connecting seat; 2, axis positioning mechanism; 21, vertical mounting shaft; 211, limit mounting rail; 22, adaptive expansion mechanism; 221, first connecting rod; 222, second connecting rod; 223, connecting block; 224, push connecting shaft; 225, connecting base; 226, reset spring; 23, inner wall resistance strip; 3, diversion collection box; 31, outer wall limit guide mechanism; 311, limit mounting plate; 3111, limit slide rail; 312, adjustment turntable; 3121, inclined adjustment rail; 313, adjustment guide rod; 32, collection filter layer; 33, suction fan; 4, driving device; 5, PVC hose. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] See also Figures 1 to 10As shown, an end face finishing device for PVC hose processing includes a guide collection box 3, an axis positioning mechanism 2 and a comprehensive grinding head 1. A grinding chamber is provided inside the guide collection box 3. The axis positioning mechanism 2 is installed inside the guide collection box 3. The top of the axis positioning mechanism 2 extends to the feed port of the guide collection box 3. The axis positioning mechanism 2 is used to expand and fix the inner wall of the pipe. The comprehensive grinding head 1 is installed on the outside of the axis positioning mechanism 2. The comprehensive grinding head 1 is used to comprehensively grind the end face of the hose.

[0033] The operator inserts the PVC hose 5 to be polished into the interior of the diversion collection box 3. The diversion collection box 3 will stably guide the PVC hose 5 into the polishing chamber. When the PVC hose 5 enters the polishing chamber, it will be inserted into the outside of the axis positioning mechanism 2, and the cut end of the PVC hose 5 will collide with the full polishing head 1. The full polishing head 1 is designed with polishing surfaces of multiple angles and shapes to cover all areas of the end face of the PVC hose 5, including the hard-to-reach inner corners. After the full polishing head 1 fully collides with the PVC hose 5, the operator will continue to push the PVC hose 5 to extend into the diversion collection box 3 to expand the axis positioning mechanism 2. When the axis positioning mechanism 2 expands, it will fix the inner wall of the hose. This ensures that the hose will not rotate or deform unnecessarily during the polishing process, thereby ensuring the accuracy and stability of the polishing. After the axis positioning mechanism 2 is started, the driving device 4 will also be started, and the driving device 4 will drive the full grinding head 1 to rotate, so that the full grinding head 1 can perform all-round grinding along the end face of the hose, whether it is the outer edge, plane or inner corner, it can be fully processed. During grinding, the grinding chamber inside the diversion collection box 3 is used to accommodate and collect dust and waste generated during the grinding process. The diversion collection box 3 is used to ensure that dust and waste can be effectively collected and will not pollute the operating environment. After grinding, the operator will stop pushing the PVC hose 5, the driving device 4 will stop driving the full grinding head 1 to rotate, and the axis positioning mechanism 2 will stop fixing the PVC hose 5. The operator will pull out the PVC hose 5 that has been well polished from the diversion collection box 3 to complete the end face grinding of the PVC hose 5.

[0034] Through the above working principle, the end face finishing device for PVC hose 5 processing can realize comprehensive, efficient and stable grinding of the hose end face, solves the problem encountered by traditional grinding tools when grinding inner corners and hoses, and improves processing efficiency and product quality.

[0035] The driving device 4 is prior art and will not be described in detail here.

[0036] See also Figure 5 , Figure 6 and Figure 7As shown, the full grinding head 1 includes a rotating mounting seat 11 installed on the outside of the axis positioning mechanism 2, and a magnetic buffer mounting mechanism 12 and a multi-angle buffer mounting mechanism 14 are symmetrically installed on the rotating mounting seat 11. A flat grinding head 13 is installed on the magnetic buffer mounting mechanism 12, and a synchronous grinding head 15 on both sides is installed on the multi-angle buffer mounting mechanism 14. The full grinding head 1 also includes a transmission connecting seat 16 installed on the diversion collection box 3, and a plurality of transmission connecting shafts 111 are installed between the transmission connecting seat 16 and the rotating mounting seat 11.

[0037] The transmission connection shaft 111 is fixedly connected to the bottom of the rotating mounting seat 11, and the transmission connection shaft 111 is slidably connected to the transmission connection seat 16. After the driving device 4 is started, it will drive the transmission connection seat 16 to rotate, and then drive the rotating mounting seat 11 to rotate through the transmission connection shaft 111. At this time, the magnetic absorption buffer mounting mechanism 12 and the multi-angle buffer mounting mechanism 14 installed on the rotating mounting seat 11 also rotate accordingly. A flat grinding head 13 is installed on the magnetic absorption buffer mounting mechanism 12, which is mainly used to grind the flat part of the end face of the PVC hose 5. The design of the magnetic absorption buffer mounting mechanism 12 can ensure that the flat grinding head 13 maintains a stable contact force during the grinding process to avoid unnecessary damage to the hose. The multi-angle buffer mounting mechanism 14 is equipped with synchronous grinding heads 15 on both sides, and the grinding head is designed with grinding surfaces of multiple angles and shapes to cover the inner and outer corner areas of the end face of the PVC hose 5. The multi-angle buffer installation mechanism 14 also ensures that the synchronous grinding heads 15 on both sides maintain a constant contact force with the end face of the hose during the grinding process by means of magnetic attraction or mechanical buffering, thereby achieving a comprehensive and uniform grinding effect. After the entire grinding process is completed, the operator stops pushing the PVC hose 5, the drive device 4 stops working, and the comprehensive grinding head 1 stops rotating. The axis positioning mechanism 2 also cancels the fixation of the hose, and the operator can easily pull the polished PVC hose 5 out of the diversion collection box 3 to complete the entire end face grinding process.

[0038] See also Figures 7 to 9 As shown, the magnetic buffer mounting mechanism 12 includes a first mounting rail 121 mounted on the rotating mounting seat 11 , a magnetic mounting block 122 is mounted in the first mounting rail 121 , and a first buffer spring 123 is installed between the magnetic mounting block 122 and the first mounting rail 121 .

[0039] The top of the magnetic mounting block 122 is provided with a first mounting groove 1221 for mounting the plane grinding head 13, and the first magnetic block is provided inside the first mounting groove 1221. First, the first mounting rail 121 is fixed on the rotating mounting seat 11 as the basic support of the entire magnetic buffer mounting mechanism 12. The magnetic mounting block 122 is designed to be slidably mounted in the first mounting rail 121, which means that the magnetic mounting block 122 can move along a predetermined path under the guidance of the first mounting rail 121. A first buffer spring 123 is installed between the magnetic mounting block 122 and the first mounting rail 121. The function of this buffer spring is to buffer the impact force generated by the irregular shape or uneven surface hardness of the PVC hose 5 when the grinding head is working. When the grinding head is impacted, the first buffer spring 123 will deform and absorb part of the impact force, thereby protecting the grinding head and the entire device from damage. At the top of the magnetic mounting block 122, a first mounting groove 1221 for mounting the plane grinding head 13 is provided. This mounting groove is precisely designed to ensure that the grinding head can be firmly installed in it and maintain a stable posture during operation. A first magnetic block is provided inside the first mounting groove 1221. This magnetic block cooperates with the corresponding magnetic part at the bottom of the grinding head to firmly adsorb the grinding head in the first mounting groove 1221 through magnetic force. This magnetic installation method is not only convenient and fast, but also can ensure that the grinding head will not fall off when rotating at high speed or being impacted, which greatly improves the safety and stability of the work. The magnetic buffer mounting mechanism 12 realizes the stable installation and buffer protection of the grinding head through the coordinated action of the magnetic mounting block 122, the first mounting rail 121 and the first buffer spring 123, thereby ensuring the quality and efficiency of the end face finishing of the PVC hose 5.

[0040] See also Figures 7 to 9 As shown, a first clamping base 131 is provided at the bottom of the plane grinding head 13 , and a parallel grinding surface 132 is provided at the top of the plane grinding head 13 .

[0041] A first clamping base 131 is provided at the bottom of the plane grinding head 13. This design enables the plane grinding head 13 to be firmly installed in the first mounting groove 1221 of the magnetic mounting block 122, and is fixed by the magnetic force between the magnetic block and the magnetic mounting block 122. This installation method combining clamping and magnetic attraction is not only simple and quick to install, but also can ensure that the grinding head will not fall off when rotating at high speed or being impacted, thereby ensuring the safety and stability of the work. Secondly, a parallel grinding surface 132 is provided at the top of the plane grinding head 13. This grinding surface is the main part for performing the end face finishing work. The design of the parallel grinding surface 132 ensures that it can remain parallel to the end face of the PVC hose 5 during work, thereby achieving precise control of the flatness and finish of the end face. During the grinding process, the plane grinding head 13 rotates at high speed, and uses the sharp edge of the parallel grinding surface 132 to cut and grind the end face of the PVC hose 5, removes burrs, protrusions and other uneven parts on the surface, and makes the end face smooth and flat.

[0042] See also Figure 7 and Fig.10 As shown, the multi-angle buffer mounting mechanism 14 includes a second mounting rail 141 mounted on the rotating mounting seat 11, an adjusting screw 142 is installed on the second mounting rail 141, a push adjustment plate 143 and a sliding mounting block 144 are also installed inside the second mounting rail 141, a second buffer spring 145 is installed between the sliding mounting block 144 and the second mounting rail 141, the push adjustment plate 143 is threadedly connected with the adjusting screw 142, a lifting mounting block 146 is installed on the top of the sliding mounting block 144, the lifting mounting block 146 is used for clamping and installing the synchronous grinding heads 15 on both sides, and a third buffer spring 147 is installed between the lifting mounting block 146 and the sliding mounting block 144.

[0043] The lifting installation block 146 is provided with a second installation slot 1461 , and a second magnetic attraction block is also installed on the second installation slot 1461 .

[0044] The second mounting rail 141 is fixed on the rotating mounting seat 11 to provide a stable basic support for the multi-angle buffer mounting mechanism 14. An adjusting screw 142 is installed on the second mounting rail 141. By rotating the adjusting screw 142, the push adjustment plate 143 can be driven to move forward and backward inside the second mounting rail 141. The push adjustment plate 143 and the adjusting screw 142 are threadedly connected to ensure the accuracy and stability of the adjustment. During the movement, the push adjustment plate 143 will push the sliding mounting block 144 to slide on the second mounting rail 141. A second buffer spring 145 is installed between the sliding mounting block 144 and the second mounting rail 141. When the sliding mounting block 144 is pushed by the push adjustment plate 143, the second buffer spring 145 will be deformed and play a buffering role, so that the sliding mounting block 144 will be fine-tuned when it is pushed too much. A lifting mounting block 146 is installed on the top of the sliding mounting block 144, and the lifting mounting block 146 is used to clamp and install the synchronous grinding heads 15 on both sides. A third buffer spring 147 is installed between the lifting mounting block 146 and the sliding mounting block 144, which enables the lifting mounting block 146 to float up and down when subjected to external force, further enhancing the stability and adaptability of the grinding head. A second mounting groove 1461 is provided on the lifting mounting block 146, and a second magnetic block is also installed on the second mounting groove 1461. This design enables the synchronous grinding heads 15 on both sides to be firmly mounted on the lifting mounting block 146 through magnetic force, ensuring that they will not fall off or shake during the processing process. It effectively enables the synchronous grinding heads 15 on both sides to be adjusted at multiple angles and stably installed. It adapts to the end surface processing requirements of PVC hose 5 with different angles and complex shapes, and improves the processing efficiency and processing quality.

[0045] See also Figure 7 and Fig.10 As shown, a second clamping base 151 is provided at the bottom of the synchronous grinding heads 15 on both sides, a V-shaped abutment block 152 is provided at the top of the synchronous grinding heads 15 on both sides, and an inclined grinding surface 153 is provided on the inner wall of the V-shaped abutment block 152 .

[0046] A second clamping base 151 is provided at the bottom of the synchronous grinding heads 15 on both sides. This design enables the grinding head to be firmly mounted in the second mounting groove 1461 on the lifting mounting block 146, and is fixed by the magnetic force between the second magnetic block and the second clamping base 151. This fixing method not only ensures that the grinding head will not fall off when rotating at high speed or being impacted, but also facilitates the replacement and maintenance of the grinding head. A V-shaped resistance block 152 is provided at the top of the synchronous grinding heads 15 on both sides. The design of the V-shaped resistance block 152 enables the grinding head to fit tightly on the inner and outer edges of the end face of the PVC hose 5, ensuring that the contact area between the grinding surface and the end face of the hose is maximized. Not only does it improve the processing efficiency, it also helps to achieve a more uniform grinding effect. The inner wall of the V-shaped resistance block 152 is provided with an inclined grinding surface 153. When the grinding head rotates, the inclined grinding surface 153 will cut and grind the inner and outer edges of the end face of the PVC hose 5, remove the uneven parts, and ensure the processing quality.

[0047] See also Figure 4 and Figure 5 As shown, the axial positioning mechanism 2 includes a vertical mounting shaft 21 arranged inside the diversion and collection box 3, and a plurality of limit mounting rails 211 are provided on the vertical mounting shaft 21. An adaptive expansion mechanism 22 is installed inside the limit mounting rail 211, and an inner wall resistance strip 23 is installed at the expansion end of the adaptive expansion mechanism 22. The adaptive expansion mechanism 22 is fixedly connected to the diversion and collection box 3.

[0048] The inner wall abutment strip 23 is covered with anti-skid toothed strips.

[0049] A plurality of position-limiting mounting rails 211 are provided on the vertical mounting shaft 21. The position-limiting mounting rails 211 are evenly distributed along the axial direction of the vertical mounting shaft 21 and are used to install and fix the adaptive expansion mechanism 22. The adaptive expansion mechanism 22 is installed inside the position-limiting mounting rails 211, and it can be adaptively expanded or contracted according to the diameter of the PVC hose 5.

[0050] When the PVC hose 5 needs to be processed, the operator will insert the PVC hose 5 into the outside of the vertical mounting shaft 21, and the polished surface of the PVC hose 5 will conflict with the comprehensive polishing head 1. After the comprehensive polishing head 1 and the PVC hose 5 are fully conflicted, the operator will continue to push the PVC hose 5 downward to apply pressure. When the PVC hose 5 is pressed downward, the comprehensive polishing head 1 will drive the vertical mounting shaft 21 to move downward. When the vertical mounting shaft 21 moves downward, the adaptive expansion mechanism 22 will be triggered, causing the expansion end to expand outward until the inner wall resistance strip 23 is in close contact with the inner wall of the hose. This adaptive expansion mechanism enables the device to be compatible with and fix PVC hoses 5 of different diameters. The inner wall resistance strip 23 is the direct contact part of the expansion end of the adaptive expansion mechanism 22, and the inner wall resistance strip 23 is covered with anti-skid racks. These anti-skid racks can increase the friction between the inner wall resistance strip 23 and the inner wall of the hose, thereby preventing the hose from sliding or deflecting during processing. The stability and accuracy of the hose during the end face finishing process are ensured.

[0051] See also Figure 5 and Figure 6 As shown, the adaptive expansion mechanism 22 includes a first connecting rod 221 installed in the limit mounting rail 211, and the adaptive expansion mechanism 22 also includes a connecting block 223 installed inside the limit mounting rail 211, and a second connecting rod 222 is also installed on the connecting block 223. The movable ends of the second connecting rod 222 and the first connecting rod 221 are connected to each other, and a pushing connecting shaft 224 is also installed at the bottom of the connecting block 223. The pushing connecting shaft 224 extends outward through the vertical mounting shaft 21, and a connecting base 225 is also installed at one end of the pushing connecting shaft 224 away from the connecting block 223. The bottom of the connecting base 225 is connected to the diversion collection box 3, and a reset spring 226 is also installed between the connecting base 225 and the vertical mounting shaft 21.

[0052] A pressure sensor is installed in the connecting base 225 to detect the pressure of the return spring 226 .

[0053] In the initial state, the adaptive expansion mechanism 22 is in a contracted state, the movable ends of the first connecting rod 221 and the second connecting rod 222 are in a relatively close position, and the inner wall contact strip 23 does not contact the inner wall of the PVC hose 5. The reset spring 226 is in an expanded state.

[0054] When the PVC hose 5 needs to be processed, the operator inserts the hose into the outside of the vertical mounting shaft 21, and ensures that the polished surface of the hose conflicts with the full polishing head 1. As the operator continues to push the PVC hose 5 downward to apply pressure, the full polishing head 1 will drive the vertical mounting shaft 21 to move downward. When the vertical mounting shaft 21 moves downward, the connecting base 225 is fixed to the diversion collection box 3, so the vertical mounting shaft 21 moves downward relative to the connecting base 225. When the vertical mounting shaft 21 moves downward, it will move along the pushing connecting shaft 224, so the connecting block 223 of the vertical mounting shaft 21 will not move when it moves. Since the pushing connecting block 223 does not move, the angle between the first connecting rod 221 and the second connecting rod 222 will change, so that their movable ends are away from each other. As the expansion process proceeds, the inner wall contact strip 23 of the expansion end will gradually come into close contact with the inner wall of the PVC hose 5. Since the inner wall contact strip 23 is covered with anti-skid racks, these racks can increase the friction between the inner wall of the hose and prevent the hose from sliding or deflecting during processing. At this time, the return spring 226 is in a compressed state, and the pressure sensor on the connection base 225 can detect the pressure of the return spring 226. When the return spring 226 reaches the specified pressure, it means that the PVC hose 5 has been fixed and can be polished.

[0055] See also Figures 1 to 3 As shown, a collecting filter layer 32 is provided inside the guide collecting box 3, a polished cavity is provided on the upper layer of the collecting filter layer 32, and a suction fan 33 for sucking air is installed on the bottom layer of the collecting filter layer 32.

[0056] When the end face of the PVC hose 5 is trimmed, the grinding cavity is the main working area of ​​the device. The grinding cavity is located on the upper layer of the collection filter layer 32, where a grinding tool is installed for accurately trimming and grinding the end face of the PVC hose 5. When the grinding tool is working, a large amount of dust and debris will be generated. If these fine particles are not handled, they will not only affect the working environment, but also may cause harm to the health of the operator. In order to effectively collect these dust and debris, a collection filter layer 32 is provided inside the device. The collection filter layer 32 is made of special materials and can effectively capture and block fine dust and debris while allowing air to pass through. When the grinding tool is working, the dust and debris generated will be captured by the collection filter layer 32, while the air can continue to circulate through the filter layer. In order to further improve the collection efficiency, a suction fan 33 is installed at the bottom of the collection filter layer 32. The function of the suction fan 33 is to suck the air in the grinding cavity into the collection filter layer 32 by generating negative pressure. In this way, dust and debris are more efficiently collected in the filter layer under the action of negative pressure, thus achieving effective management of waste generated during the processing, ensuring a clean working environment and the health of operators.

[0057] See also Figure 3 and Figure 4 As shown, an outer wall limit guide mechanism 31 is installed at the feed port position of the diversion collection box 3, and the outer wall limit guide mechanism 31 includes a limit mounting disk 311, and a plurality of limit slide rails 3111 are arranged on the limit mounting disk 311, and adjustment guide rods 313 are installed inside the limit slide rails 3111, and an adjustment turntable 312 is installed on the limit mounting disk 311, and a plurality of inclined adjustment rails 3121 are arranged on the adjustment turntable 312, and the inclined adjustment rails 3121 are connected to the adjustment guide rods 313.

[0058] Adjustment guide rods 313 are installed inside the limit slide rail 3111. These adjustment guide rods 313 can be adjusted according to the diameter and shape of the hose to adapt to hoses of different specifications. The function of the adjustment guide rods 313 is to slightly guide and limit the outer wall of the hose when it passes through, so as to prevent the hose from deflecting or shaking during transportation. An adjustment dial 312 is also installed on the limit installation plate 311. The adjustment dial 312 is provided with a plurality of inclined adjustment rails 3121, which are connected to the adjustment guide rods 313. By rotating the adjustment dial 312, the angle of the inclined adjustment rails 3121 can be changed, thereby driving the position of the adjustment guide rods 313 in the limit slide rail 3111 to change. This design enables the outer wall limit guide mechanism 31 to adapt to hoses of different diameters and shapes, and to accurately limit and guide them. During the processing of the PVC hose 5, when the hose is transported to the feed port, the outer wall limit guide mechanism 31 will immediately play a role. The outer wall of the hose contacts the adjustment guide rod 313 and is slightly guided and restricted. As the hose is further transported, the adjustment guide rod 313 will be fine-tuned according to the shape and diameter of the hose to ensure that the hose stably enters the grinding cavity for end face trimming. During the whole process, the outer wall limit guide mechanism 31 greatly improves the accuracy and efficiency of hose processing through precise limit and guidance.

[0059] Specific working principle:

[0060] The operator inserts the PVC hose to be polished into the diversion collection box 3. Under the guidance of the diversion collection box 3, the hose stably enters the polishing chamber and is inserted into the outside of the axis positioning mechanism 2. At this time, the cut end of the hose collides with the full polishing head 1. The full polishing head 1 is designed with polishing surfaces of multiple angles and shapes to cover all areas of the hose end face, including the hard-to-reach inner corners. The full polishing head 1 fully collides with the hose end face, and the operator continues to push the hose into the diversion collection box 3 so that the axis positioning mechanism 2 expands and fixes the inner wall of the hose. The hose will not rotate or deform unnecessarily during the polishing process, thereby ensuring the accuracy and stability of the polishing. Then, the drive device 4 is started to drive the full polishing head 1 to rotate. The full polishing head 1 includes a rotating mounting seat 11, a magnetic suction buffer mounting mechanism 12 and a multi-angle buffer mounting mechanism 14. The rotating mounting seat 11 is connected to the transmission connecting seat 16 through a transmission connecting shaft 111, and is driven to rotate by the drive device 4. A flat grinding head 13 is installed on the magnetic buffer installation mechanism 12 for grinding the flat part of the end face of the hose; and a synchronous grinding head 15 is installed on the multi-angle buffer installation mechanism 14 for grinding the inner and outer corner areas. During the grinding process, the magnetic buffer installation mechanism 12 and the multi-angle buffer installation mechanism 14 ensure that the grinding head maintains a constant contact force with the end face of the hose, avoids damage to the hose, and achieves a comprehensive and uniform grinding effect. At the same time, the grinding chamber inside the diversion collection box 3 is used to accommodate and collect dust and waste generated during the grinding process to ensure the cleanliness of the operating environment. After the grinding is completed, the operator stops pushing the hose, the drive device 4 stops working, and the comprehensive grinding head 1 stops rotating. The axis positioning mechanism 2 also cancels the fixation of the hose, and the operator can easily pull the polished PVC hose out of the diversion collection box 3 to complete the entire end face grinding process. This device can achieve comprehensive, efficient and stable grinding of the hose end face, improving processing efficiency and product quality.

[0061] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An end surface trimming device for PVC hose processing, characterized in that: It comprises a diversion collection box (3), an axis positioning mechanism (2) and a full-surface grinding head (1); A grinding chamber is provided inside the diversion collection box (3); The axis positioning mechanism (2) is installed inside the flow guide collection box (3), the top of the axis positioning mechanism (2) extends toward the feed inlet of the flow guide collection box (3), and the axis positioning mechanism (2) is used to expand and fix the inner wall of the pipeline; The full grinding head (1) is installed on the outside of the axis positioning mechanism (2), and the full grinding head (1) is used to fully grind the end surface of the hose; The full-surface grinding head (1) comprises a rotating mounting seat (11) mounted on the outside of the axis positioning mechanism (2); a magnetic absorption buffer mounting mechanism (12) and a multi-angle buffer mounting mechanism (14) are symmetrically mounted on the rotating mounting seat (11); a plane grinding head (13) is mounted on the magnetic absorption buffer mounting mechanism (12); and a synchronous grinding head (15) on both sides is mounted on the multi-angle buffer mounting mechanism (14); the full-surface grinding head (1) further comprises a transmission connection seat (16) mounted on the diversion collection box (3); and a plurality of transmission connection shafts (111) are mounted between the transmission connection seat (16) and the rotating mounting seat (11); The axis positioning mechanism (2) comprises a vertical mounting shaft (21) arranged inside the diversion collection box (3); a plurality of position limiting mounting rails (211) are arranged on the vertical mounting shaft (21); an adaptive expansion mechanism (22) is installed inside the position limiting mounting rails (211); an inner wall abutment strip (23) is installed at the expansion end of the adaptive expansion mechanism (22); and the adaptive expansion mechanism (22) is fixedly connected to the diversion collection box (3); The adaptive expansion mechanism (22) comprises a first connecting rod (221) installed in the limit mounting rail (211). The adaptive expansion mechanism (22) also comprises a connecting block (223) installed inside the limit mounting rail (211). A second connecting rod (222) is also installed on the connecting block (223). The movable ends of the second connecting rod (222) and the first connecting rod (221) are connected to each other. A push connecting shaft (224) is also installed at the bottom of the connecting block (223). The push connecting shaft (224) passes through the vertical mounting shaft (21) and extends outward. A connecting base (225) is also installed at one end of the pushing connecting shaft (224) away from the connecting block (223). The bottom of the connecting base (225) is connected to the diversion collection box (3). A return spring (226) is also installed between the connecting base (225) and the vertical mounting shaft (21).

2. The end surface trimming device for PVC hose processing according to claim 1, characterized in that: The magnetic attraction buffer mounting mechanism (12) comprises a first mounting rail (121) mounted on a rotating mounting seat (11), a magnetic attraction mounting block (122) being mounted in the first mounting rail (121), and a first buffer spring (123) being mounted between the magnetic attraction mounting block (122) and the first mounting rail (121).

3. The end surface trimming device for PVC hose processing according to claim 2, characterized in that: A first clamping base (131) is provided at the bottom of the plane grinding head (13), and a parallel grinding surface (132) is provided at the top of the plane grinding head (13).

4. The end surface trimming device for PVC hose processing according to claim 1, characterized in that: The multi-angle buffer mounting mechanism (14) comprises a second mounting rail (141) mounted on a rotating mounting seat (11); an adjusting screw (142) is mounted on the second mounting rail (141); a push adjustment plate (143) and a sliding mounting block (144) are also mounted inside the second mounting rail (141); a second buffer spring (145) is mounted between the sliding mounting block (144) and the second mounting rail (141); the push adjustment plate (143) is threadedly connected to the adjusting screw (142); a lifting mounting block (146) is mounted on the top of the sliding mounting block (144); the lifting mounting block (146) is used for clamping and mounting the synchronous grinding heads (15) on both sides; and a third buffer spring (147) is mounted between the lifting mounting block (146) and the sliding mounting block (144).

5. The end surface trimming device for PVC hose processing according to claim 1, characterized in that: The bottom of the synchronous grinding heads (15) on both sides is provided with a second clamping base (151), the top of the synchronous grinding heads (15) on both sides is provided with a V-shaped abutment block (152), and the inner wall of the V-shaped abutment block (152) is provided with an inclined grinding surface (153).

6. The end surface trimming device for PVC hose processing according to claim 1, characterized in that: A collecting filter layer (32) is provided inside the guide collection box (3), a polishing cavity is provided on the upper layer of the collecting filter layer (32), and a suction fan (33) for sucking air is installed on the bottom layer of the collecting filter layer (32).

7. The end surface trimming device for PVC hose processing according to claim 1, characterized in that: An outer wall limit guide mechanism (31) is installed at the feed inlet of the diversion collection box (3), the outer wall limit guide mechanism (31) comprising a limit installation disk (311), a plurality of limit slide rails (3111) are arranged on the limit installation disk (311), adjustment guide rods (313) are installed inside the limit slide rails (3111), an adjustment turntable (312) is installed on the limit installation disk (311), a plurality of inclined adjustment rails (3121) are arranged on the adjustment turntable (312), and the inclined adjustment rails (3121) are connected to the adjustment guide rods (313).

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