Automatic cutting machine for PVC pipe

By stabilizing the position of the PVC pipe with a drive device and limiter, and combining a lifting mechanism and an electrically heated cutting tool, the problems of low efficiency, low precision and environmental pollution of existing PVC pipe cutting machines are solved, and efficient and accurate PVC pipe cutting is achieved.

CN223657072UActive Publication Date: 2025-12-12JIANGSU WEI SHUAI PLASTIC CO LTD
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Patent Information

Application Number
CN202520012570.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2025-12-12
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

Existing PVC pipe cutting machines suffer from low efficiency, poor safety, low cutting accuracy, rough cuts, and are prone to generating debris and dust, as well as causing PVC pipe deformation, making it difficult to meet the requirements of high-precision construction.

Method used

A drive unit is used to drive the conveyor rollers and conveyor belt to transport PVC pipes. A limiter limits the position. Combined with a lifting mechanism and a cutting mechanism, an electrically heated cutting tool is used for cutting. This ensures that the PVC pipe is stable in position during transport, is not easily deformed during cutting, and reduces the generation of debris.

Benefits of technology

It achieves high-precision cutting of PVC pipes, reduces debris and dust, improves production efficiency and product quality, and ensures a clean working environment.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223657072U_ABST
    Figure CN223657072U_ABST
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Abstract

The utility model discloses an automatic cutting machine for a PVC pipe. The automatic cutting machine comprises a base, a support, a conveying roller, a first driving device, a lifting mechanism, an upper pressing piece, a first limiting stopper, a second limiting stopper, a second driving device, a conveying belt and a cutting mechanism. Symmetrical protruding structures are connected to the middle of the base, the supports are connected to the two sides of the top face of the base, the conveying rollers are connected to the inner sides of the supports in parallel, the first driving device and the second driving device are connected to the bottom face of the inner side of the base, and the lifting mechanism is connected to the tops of the protruding structures. The conveying belt is connected between the protruding structures, and the first limiter and the cutting mechanism are connected to the inner side edges of the protruding structures. Compared with the prior art, the PVC pipe cutting device has the advantages that a plurality of PVC pipes are conveyed to the position of the conveying belt through the conveying roller, the position states of the PVC pipes are limited through the limiting stoppers, the conveying belt operates after the upper pressing piece presses the PVC pipes, the PVC pipes are driven to roll, the heated cutting mechanism moves upwards to the position of the PVC pipes, and cutting which is little in dust and not prone to deformation is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to PVC pipe production equipment technical field, especially in a kind of automatic cutting machine for PVC pipe. BACKGROUND

[0002] In the production process of PVC pipe, in order to facilitate subsequent processing or meet application requirements, etc., the PVC pipe produced needs to be cut, and the traditional PVC pipe cutting mainly relies on manual measurement and cutting appliance to operate, which has the problems of low efficiency, poor safety, low cutting precision, etc., and is difficult to meet the requirements of high-precision construction, especially in the case of accurate requirement for the length of PVC pipe, and with the development of industrial automation, PVC pipe cutting machine gradually applies intelligent and automatic related technologies, to realize more accurate and convenient PVC pipe cutting, improve work efficiency and quality, and reduce production cost.

[0003] In the existing automatic cutting machine for PVC pipe, transmission belt is usually used to transport PVC pipe, and after limiting, the fixed PVC pipe is cut, or after fixing the PVC pipe, the cutting device is used to cut in sections, which has the problems of rough cut, easy to produce chippings and dust, pollute the working environment, and possibly cause certain extrusion deformation of PVC pipe, etc., affecting product production quality. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem to provide a kind of automatic cutting machine for PVC pipe, by using drive device one drive transmission cylinder and transport multiple PVC pipes to transmission belt position, the position state of PVC pipe is limited by stopper, after the upper pressure piece of the auxiliary transmission belt is connected and presses PVC pipe, drive device two drive transmission belt operation, drive PVC pipe to roll, after the cutting mechanism of heating moves to PVC pipe position, cuts the pipe body one round of PVC pipe cutting position, realizes the PVC pipe cutting of little chippings and dust and not easy to deform.

[0005] The utility model realizes the following technical scheme:

[0006] A kind of automatic cutting machine for PVC pipe, including base, still including support, two blocks of day type convex structures perpendicular to the bottom surface are symmetrically connected in base middle, support is connected at the top of both sides of base, drive device one and drive device two are connected on the inner side bottom surface of base, transmission cylinder is connected in the inner side of support, transmission belt is connected on the horizontal position of convex structure relative to support between support, the output end of drive device one and drive device two is connected with transmission cylinder and transmission belt respectively, the inner side of convex structure on the top of transmission belt both ends is connected with baffle and stopper one respectively, cutting mechanism is connected on the inner side of convex structure on the side of transmission belt, lifting mechanism is connected on the top of convex structure, lower pressure piece and stopper two are connected on the bottom end of lifting mechanism.

[0007] Further, the driving device one and the driving device two are motors, the rotating shaft of the driving device one is perpendicular to the transmission direction of the PVC pipe, and the rotating shaft of the driving device two is parallel to the transmission direction of the PVC pipe.

[0008] Further, the rotating shafts of the driving device one and the driving device two are connected with sprockets on the input shafts of the transmission drum and the transmission belt, and the rotating shafts of the driving device one and the transmission drum and the rotating shafts of the driving device two and the transmission belt are connected through the transmission chain articulated between the sprockets.

[0009] Further, the transmission direction of the transmission belt is perpendicular to the transmission direction of the transmission drum in the horizontal direction, and the length of the transmission belt is greater than the drum length of the transmission drum.

[0010] Further, the position limiter one is a pneumatic cylinder, the telescopic rod of the position limiter one is parallel to the transmission belt and perpendicular to the transmission direction of the PVC pipe in the horizontal direction, the top end of the telescopic rod of the position limiter one is connected with a pressing block, the distance from the bottom surface of the pressing block to the top surface of the transmission belt is slightly smaller than the length of the cross-sectional radius of the PVC pipe, and when the telescopic rod is fully retracted, the pressing block is located on the same line with the support.

[0011] Further, the lifting mechanism comprises a lifting driving device one and a sliding rod symmetrically arranged at the top of the protruding structure, the lifting driving device one is a pneumatic cylinder, the telescopic rod of the lifting driving device one and the sliding rod pass through the top of the protruding structure, and the ends of the telescopic rod and the sliding rod are connected with a connecting block.

[0012] Further, the pressing member is a secondary transmission belt, the rotating shaft of the pressing member is rotatably connected to the opposite sides of the connecting block through connecting rods, the length of the pressing member is slightly smaller than the drum length of the transmission drum, and the width of the pressing member is slightly smaller than the spacing between the two position limiters one.

[0013] Further, the position limiter two is connected to one side of the connecting block facing the pipe outlet, the position limiter two is connected with a drum perpendicular to the pipe transmission direction, the length of the drum is equal to the length of the pressing member, the drum is connected with a spring buffer structure, and the vertical distance from the bottom end of the position limiter two to the top surface of the transmission belt is smaller than the vertical spacing between the pressing member and the transmission belt.

[0014] Further, the cutting mechanism comprises a lifting driving device two and a cutting tool, the lifting driving device two is a pneumatic cylinder, the lifting driving device two is connected to the inner side of the middle part of the protruding structure between the transmission belt and the position limiter two, the telescopic rod of the lifting driving device two is perpendicular to the plane where the transmission belt is located, the cutting tool is connected to the end of the telescopic rod of the lifting driving device two, and the cutting tool is connected with an electric heating device.

[0015] Compared with the prior art, the utility model has the following obvious advantages:

[0016] The utility model discloses a limiting position of PVC pipe in the transmission process, and the limiting position is limited in the horizontal direction and the vertical direction, and the position state of PVC pipe in the transmission process is effectively limited.

[0017] The utility model discloses a limiting position of PVC pipe in the transmission process, and the limiting position is limited in the horizontal direction and the vertical direction, and the position state of PVC pipe in the transmission process is effectively limited.

[0018] The utility model discloses a limiting position of PVC pipe in the transmission process, and the limiting position is limited in the horizontal direction and the vertical direction, and the position state of PVC pipe in the transmission process is effectively limited.

[0019] The utility model discloses a limiting position of PVC pipe in the transmission process, and the limiting position is limited in the horizontal direction and the vertical direction, and the position state of PVC pipe in the transmission process is effectively limited. ACCURATE DRAWING

[0020] Figure 1 It is the overhead structure schematic diagram of the utility model;

[0021] Figure 2 It is the front view structure schematic diagram of Figure 1 ;

[0022] Figure 3 It is the right view structure schematic diagram of the base protruding portion of Figure 2 ;

[0023] Among them, the relationship between the figure mark and the corresponding name is as follows:

[0024] 1, base, 2, support, 3, transmission cylinder, 4, drive device one, 5, transmission belt, 6, limit one, 7, drive device two, 8, lifting mechanism, 801, lifting drive device one, 802, slide rod, 9, upper pressing piece, 10, limit two, 11, lifting drive device two, 12, cutting tool. DETAILED DESCRIPTION

[0025] The utility model is described in detail below with reference to the drawings.

[0026] As Figure 1 , Figure 2 and Figure 3 shown, the utility model provides a kind of automatic cutting machine for PVC pipe, including base 1, support 2, transmission cylinder 3, drive device one 4, transmission belt 5, limit one 6, drive device two 7, lifting mechanism 8, upper pressing piece 9, limit two 10 and cutting mechanism;In this embodiment, two blocks of day type convex structures perpendicular to the bottom surface are symmetrically connected in base 1, support 2 is connected at the top of the two sides of base 1, transmission cylinder 3 is connected in the inside of support 2, drive device one 4 and drive device two 7 are connected on the inside bottom surface of base 1, drive device one 4 and drive device two 7 are motor, the rotation axis of drive device one 4 is perpendicular to the transmission direction of PVC pipe, the rotation axis of drive device two 7 is parallel to the transmission direction of PVC pipe;Transmission belt 5 is connected on the horizontal position relative to support 2 between convex structure, the transmission direction of transmission belt 5 is perpendicular to the transmission direction of transmission cylinder 3 in horizontal direction, the length of transmission belt 5 is greater than the cylinder length of transmission cylinder 3, the rotation axis of drive device one 4, drive device two 7 and the input shaft of transmission cylinder 3, transmission belt 5 are connected with sprocket, between the rotation axis of drive device one 4 and the input shaft of transmission cylinder 3 and between the rotation axis of drive device two 7 and the input shaft of transmission belt 5, transmission chain articulated between sprocket and sprocket is connected;Limit one 6 is air cylinder, limit one 6 is connected on the inside edge of convex structure above one end of transmission belt 5, baffle is connected on the inside edge of convex structure above the other end of transmission belt 5 on the opposite side of limit one 6, the telescopic rod of limit one 6 is parallel to transmission belt 5, and in horizontal direction, it is perpendicular to the transmission direction of PVC pipe, the top end of the telescopic rod of limit one 6 is connected with pressing block, the distance from the bottom surface of pressing block to the top surface of transmission belt 5 is slightly less than the length of PVC pipe section radius, when telescopic rod is completely retracted, pressing block is located on the same line with support 2.

[0027] The lifting mechanism 8 is connected at the top of the protruding structure, the lifting mechanism 8 comprises lifting driving devices 801 and slide rods 802 which are symmetrically arranged at the top of the protruding structure, the lifting driving devices 801 are air cylinders, the telescopic rods of the lifting driving devices 801 and the slide rods 802 pass through the top of the protruding structure, and the ends of the telescopic rods and the slide rods are connected with connecting blocks; the lower pressing members 9 and the limiters 10 are connected at the bottom end of the lifting mechanism 8, the lower pressing members 9 are auxiliary transmission belts, the rotary shafts of the lower pressing members 9 are rotatably connected on the opposite sides of the connecting blocks through connecting rods, the length of the lower pressing members 9 is slightly smaller than the length of the transmission drum 3, the width of the lower pressing members 9 is slightly smaller than the spacing between the two limiters 6, the limiters 10 are connected on the side of the connecting blocks facing the pipe outlet, the bottom of the limiter 10 comprises a drum which is perpendicular to the pipe transmission direction and has a length equal to the length of the lower pressing members 9, the drum is connected with spring buffering structures, and the vertical distance from the bottom end of the limiter 10 to the top surface of the transmission belt 5 is smaller than the vertical spacing between the lower pressing members 9 and the transmission belt 5; the cutting mechanism is connected on the inner side of the protruding structure on one side of the transmission belt 5, the cutting mechanism comprises lifting driving devices 11 and cutting knives 12, the lifting driving devices 11 are air cylinders and are connected on the inner side of the middle part of the protruding structure between the transmission belt 5 and the limiter 10, the telescopic rods of the lifting driving devices 11 are perpendicular to the plane where the transmission belt 5 is located, the cutting knives 12 are connected at the ends of the telescopic rods of the lifting driving devices 11, and the cutting knives 12 are connected with electric heating devices.

[0028] When the utility model is used, the operator places a plurality of PVC pipes to be cut in the state of end alignment on the transmission drum 3 between the supports 2 of the cutting machine starting transmission, after the PVC pipes enter the transmission position, the driving device 4 operates, the transmission drum is driven to rotate through the transmission chain of the sprocket and sprocket articulation, the PVC pipes are transmitted to the position of the protruding structure passing through the base 1, the limiter 6 operates, the telescopic rod of the limiter 6 pushes the connected pressing block to one side of the PVC pipe, and the pressing block limits the transmission position of the PVC pipe in the horizontal direction together with the baffle on the opposite side of the limiter 6, and the lifting driving device 801 operates, the telescopic rod of the lifting driving device 801 is pushed out, the connecting block connected at the end of the telescopic rod and the limiter 10 connected on one side of the connecting block are pressed down to the top of the PVC pipe, and the transmission position of the PVC pipe in the vertical direction is limited.

[0029] When the PVC pipe is transmitted to the pre-cutting position, the lifting driving device one 801 is operated again, the telescopic rod of the lifting driving device one 801 is further pushed out, the bottom surface of the lower pressing piece 9 connected by the connecting block at the end of the telescopic rod is pressed to the top of the PVC pipe, the position limiter two 10 is still limited in the original position under the action of the connected spring buffer structure, the limitation of the PVC pipe on both sides of the pre-cutting position in the vertical direction is realized, after the lower pressing piece 9 presses the PVC pipe, the driving device two 7 is operated, the rotation shaft of the transmission belt 5 is driven to rotate through the chain wheel and the transmission chain hinged by the chain wheel, the transmission belt 5 drives the limited PVC pipe to rotate in the running process, the auxiliary transmission belt of the lower pressing piece 9 is driven to roll while rotating with the PVC pipe, the limiting state is not affected by the rotation of the PVC pipe, in the rotation process of the PVC pipe, the cutting tool 12 is preheated by the electric heating device, the lifting driving device two 11 is operated, the cutting tool 12 connected at the end of the telescopic rod is driven to move up to the position of the PVC pipe, the cutting depth is slightly larger than the pipe wall thickness of the PVC pipe, the cutting of the pipe body around the cutting position is completed in the rotation process of the PVC pipe; after the cutting is completed, the lifting driving device two 11 is operated, the cutting tool 12 connected at the end of the telescopic rod is moved down and retracted, at the same time, the driving device two 7 is operated to stop operation, the telescopic rod of the lifting driving device one 801 is retracted by a distance, the bottom surface of the lower pressing piece 9 is away from the top of the PVC pipe, but the position limiter two 10 is still limited in the original position under the action of the connected spring buffer structure, the driving device one 4 continues to operate, the transmission roller 3 is continuously driven to transmit the PVC pipe, the cut PVC pipe is pushed to the support 2 on the other side of the protruding structure, the above operation is repeated, and the high-quality product cutting of the PVC pipe with less debris and dust and not easy to deform is realized.

[0030] The above embodiment is only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent transformation or modification according to the spirit and essence of the utility model shall be covered within the protection scope of the utility model.

Claims

1. An automatic cutting machine for PVC pipes, comprising a base (1) and a support (2), wherein the base (1) has two H-shaped protrusions symmetrically connected in the middle and perpendicular to the bottom surface, and the support (2) is connected to the top two sides of the base (1), characterized in that: The inner bottom surface of the base (1) is connected to a drive device 1 (4) and a drive device 2 (7). The inner sides of the bracket (2) are connected in parallel to a transmission roller (3). The protruding structures are connected at a horizontal position relative to the bracket (2). The output ends of the drive device 1 (4) and the drive device 2 (7) are connected to the transmission roller (3) and the transmission belt (5) respectively. The inner sides of the protruding structures above both ends of the transmission belt (5) are connected to a baffle and a limiter 1 (6) respectively. The inner side of the protruding structure on one side of the transmission belt (5) is connected to a cutting mechanism. The top of the protruding structure is connected to a lifting mechanism (8). The bottom end of the lifting mechanism (8) is connected to a pressing component (9) and a limiter 2 (10).

2. An automatic cutting machine for PVC pipes according to claim 1, characterized in that: The first driving device (4) and the second driving device (7) are motors. The rotation axis of the first driving device (4) is perpendicular to the transmission direction of the PVC pipe, and the rotation axis of the second driving device (7) is parallel to the transmission direction of the PVC pipe.

3. An automatic cutting machine for PVC pipes according to claim 2, characterized in that: The rotating shafts of the first drive device (4) and the second drive device (7) and the input shafts of the transmission roller (3) and the transmission belt (5) are connected to sprockets. The rotating shafts of the first drive device (4) and the input shafts of the transmission roller (3) and the rotating shafts of the second drive device (7) and the input shafts of the transmission belt (5) are connected by transmission chains that are hinged between the sprockets.

4. An automatic cutting machine for PVC pipes according to claim 1, characterized in that: The transmission direction of the conveyor belt (5) is perpendicular to the transmission direction of the conveyor roller (3) in the horizontal direction, and the length of the conveyor belt (5) is greater than the length of the conveyor roller (3).

5. An automatic cutting machine for PVC pipes according to claim 1, characterized in that: The limiter (6) is a cylinder. The telescopic rod of the limiter (6) is parallel to the conveyor belt (5) and perpendicular to the transmission direction of the PVC pipe in the horizontal direction. A pressure block is connected to the top of the telescopic rod of the limiter (6). The distance from the bottom surface of the pressure block to the top surface of the conveyor belt (5) is slightly less than the length of the cross-sectional radius of the PVC pipe. When the telescopic rod is fully retracted, the pressure block and the bracket (2) are on the same line.

6. An automatic cutting machine for PVC pipes according to claim 1, characterized in that: The lifting mechanism (8) includes a lifting drive device (801) and a slide rod (802) symmetrically arranged on the top of the protruding structure. The lifting drive device (801) is a cylinder. The telescopic rod of the lifting drive device (801) and the slide rod (802) pass through the top of the protruding structure. The ends of the telescopic rod and the slide rod are connected to a connecting block.

7. An automatic cutting machine for PVC pipes according to claim 6, characterized in that: The pressing component (9) is a secondary conveyor belt. The rotating shaft of the pressing component (9) is rotatably connected to the opposite side of the connecting block through a connecting rod. The length of the pressing component (9) is slightly less than the length of the conveyor roller (3), and the width of the pressing component (9) is slightly less than the distance between the two limiters (6).

8. An automatic cutting machine for PVC pipes according to claim 6, characterized in that: The second limiter (10) is connected to the side of the connecting block facing the outlet. The second limiter (10) is connected to a roller perpendicular to the pipeline transmission direction. The length of the roller is equal to the length of the lower pressure member (9). The roller is connected to a spring buffer structure. The vertical distance from the bottom of the second limiter (10) to the top surface of the conveyor belt (5) is less than the vertical distance between the lower pressure member (9) and the conveyor belt (5).

9. An automatic cutting machine for PVC pipes according to claim 1, characterized in that: The cutting mechanism includes a second lifting drive device (11) and a cutting tool (12). The second lifting drive device (11) is a cylinder connected to the inner side of the protruding structure between the conveyor belt (5) and the second limiter (10). The telescopic rod of the second lifting drive device (11) is perpendicular to the plane of the conveyor belt (5). The cutting tool (12) is connected to the end of the telescopic rod of the second lifting drive device (11). The cutting tool (12) is connected to an electric heating device.