Plastic pipe cutting device

Abstract

The utility model discloses a plastic pipe cutting device which comprises a workbench, a mounting plate, a cutting mechanism and a pipe clamping and conveying mechanism, the mounting plate is fixed on the workbench, the cutting mechanism is fixed with the mounting plate, the pipe clamping and conveying mechanism is located on the upstream of the cutting mechanism, and the pipe clamping and conveying mechanism comprises a driving assembly, a supporting assembly and a clamping and conveying assembly. The supporting assembly is fixed to the mounting plate, the power output end of the driving assembly penetrates through the mounting plate and the supporting assembly and then is connected with the clamping and conveying assembly, the driving assembly is rotationally matched with the supporting assembly, and the cutting-off mechanism is located on the downstream of the clamping and conveying assembly. The utility model has the advantage that the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic products, in particular to a plastic pipe cutting device. Background Art

[0002] The processing technology of plastic pipes generally includes raw material particle mixing, extrusion, mold forming, vacuum cooling and sizing, coding, cutting or shearing, etc. For some large-diameter plastic pipes, such as plastic pipes for building drainage, plastic pipes for sewers, etc., they are generally tractioned by traction after vacuum cooling and sizing, and then they are sent to the designated location. For some small-diameter plastic pipes (such as PE water pipes, etc.), due to their small diameter, it is impossible to use a pipe cutting machine dedicated to large diameters for cutting, and even if there is a dedicated pipe cutting machine, its machine size is large, the equipment purchase cost is high, and these small-diameter plastic pipes are not like large-diameter drainage pipes, where cutting is a necessary step after sizing. Small-diameter plastic pipes only need to be cut into pipes of corresponding lengths according to different needs in some occasions. Therefore, if a dedicated large-scale pipe cutting equipment is developed or purchased, the idle rate of the pipe cutting equipment will be high, which is not conducive to reducing equipment costs, manufacturing and forming, etc. Utility Model Content

[0003] The utility model provides a plastic pipe cutting device which is beneficial to reducing costs.

[0004] The technical solutions to the above problems are as follows:

[0005] The plastic pipe cutting device includes a workbench, a mounting plate, and a cutting mechanism. The mounting plate is fixed on the workbench, and the cutting mechanism is fixed to the mounting plate. The device also includes a pipe clamping and feeding mechanism. The pipe clamping and feeding mechanism is located upstream of the cutting mechanism. The pipe clamping and feeding mechanism includes a driving component, a supporting component, and a clamping and feeding component. The supporting component is fixed to the mounting plate. The power output end of the driving component passes through the mounting plate and the supporting component and is connected to the clamping and feeding component. The driving component and the support component rotate in cooperation. The cutting mechanism is located downstream of the clamping and feeding component.

[0006] Furthermore, the cutting mechanism includes a linear drive, a knife seat, a cutter, and a guide seat. The linear drive is arranged on a workbench. One end of the knife seat is fixed to the power output end of the linear drive, and the other end of the knife seat is connected to the cutter after passing through the mounting plate. There are two guide seats and they are arranged symmetrically. The cutter is located between the two guide seats. A knife gap that cooperates with the cutter is provided between the two guide seats, and each guide seat is provided with a through hole for the pipe to pass through.

[0007] Furthermore, each guide seat includes a first guide seat and a second guide seat, one end of each first guide seat is fixed to the mounting plate, and the other end of each first guide seat is fixed to the second guide seat, a clearance groove is formed between the two guide seats, and guide parts are provided on the opposite wall surfaces of the two second guide seats, and the knife gap is located between the two guide parts.

[0008] Furthermore, the knife seat includes a connecting seat, a connecting arm, and a clamping bolt. The two ends of the connecting seat are respectively connected to a connecting arm. Guide grooves are respectively formed above and below the two guide parts. The connecting arm is slidably matched with the guide groove. A clamping groove is provided on the connecting arm. After the end of the cutter is matched with the clamping groove, the end of the cutter is clamped in the clamping groove by a bolt.

[0009] Furthermore, the clamping and conveying assembly includes a transmission wheel and a clamping and conveying belt. The transmission wheel is connected to the driving assembly, the clamping and conveying belt cooperates with the transmission wheel, and the surface of the clamping and conveying belt is provided with friction-increasing teeth.

[0010] Furthermore, it also includes a guide tube assembly, which is located upstream of the pipe clamping and feeding mechanism. The guide tube assembly includes a support seat and a guide tube. The support seat is fixed to the mounting plate. The support seat is provided with a guide hole that passes through the axial end surface of the support seat. One end of the guide tube is fixed to an end of the support seat that is away from the pipe clamping and feeding mechanism, and the other end of the guide tube is a free end.

[0011] After the head of the pipe is passed through the guide tube, the guide hole, the interval space between the two clamping belts, and the through hole in sequence, the upper and lower clamping belts clamp the shape of the pipe, start the driving component, the driving component drives the transmission wheel to rotate, the transmission wheel drives the clamping belt to move, the pipe moves under the driving action of the upper and lower clamping belts, when the length of the pipe section between the pipe extending from the outside of the cutting mechanism to the knife gap meets the requirements, the linear drive drives the knife holder to move linearly, the knife holder drives the cutter to move linearly, the pipe is cut by the cutter, and the cut pipe section is pushed out to the outside of the cutting mechanism by the end of the pipe that is continuously transported and poured into the receiving trough. The utility model is composed of several simple parts, not only with low equipment cost, but also simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the plastic pipe cutting device of the utility model.

[0013] Figure 2 For Figure 1 A schematic diagram with some parts hidden on the basis of the model.

[0014] Figure 3 Schematic diagram of the cutting mechanism.

[0015] Figure 4 This is a structural diagram of the knife holder.

[0016] Markings in the attached drawings:

[0017] Workbench 1, cylinder support 1a, notch 1b, mounting plate 2, linear drive 3, knife seat 4, connecting seat 4a, connecting plate 4a1, connecting block 4a2, connecting arm 4b, clamping bolt 4c, slot 4d, cutter 5, knife gap 6, through hole 7, first guide seat 8, second guide seat 9, give way groove 10, guide part 11, guide groove 11a, transmission wheel 12, clamping belt 13, friction-increasing tooth 13a, support seat 14, guide hole 14a, guide tube 15, drive component A, support component B, pipe fitting G, material receiving trough S. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] like Figures 1 to 4 The plastic pipe cutting device of the utility model comprises a workbench 1, a mounting plate 2, a cutting mechanism, and a pipe clamping and feeding mechanism. Each part and the relationship between the parts are described in detail below:

[0020] The mounting plate 2 is fixed on the workbench 1, and the cutting mechanism is fixed to the mounting plate 2. In this embodiment, the cutting mechanism includes a linear drive 3, a knife seat 4, a cutter 5, and a guide seat. The linear drive 3 is arranged on the workbench 1. The linear drive 3 can be a cylinder, a hydraulic cylinder, etc. In this embodiment, the linear drive 3 preferably adopts a cylinder, and a cylinder support 1a is provided on the workbench 1. The linear drive 3 is fixed to the cylinder support 1a, and a notch 1b is provided on the cylinder support 1a, and the notch 1b is used to cooperate with the knife seat 4.

[0021] One end of the knife seat 4 is fixed to the power output end of the linear drive 3, and the other end of the knife seat 4 is connected to the cutter 5 after passing through the mounting plate 2. The knife seat 4 includes a connecting seat 4a, a connecting arm 4b, and a clamping bolt 4c. The connecting seat 4a is fixed to the output end of the linear drive 3. In this embodiment, the connecting seat 4a is composed of a connecting plate 4a1 and a connecting block 4a2. The connecting block 4a2 protrudes from the surface of the connecting plate 4a1, and one end of the connecting block 4a2 cooperates with the notch 1b. The two ends of the connecting seat 4a are respectively connected to a connecting arm 4b, and the connecting arm 4b is fixed to the end of the connecting plate 4a1. The two connecting arms 4b and a connecting plate 4a1 form a U-shaped body.

[0022] The connecting arm 4b is provided with a slot 4d. After the end of the cutter 5 is matched with the slot 4d, the end of the cutter 5 is pressed into the slot 4d by a bolt 4c. The profile of the cutter 5 is an isosceles trapezoid. The slot 4d matches the end of the cutter 5. The connecting arm 4b is provided with a threaded hole located on one side of the slot 4d. A part of the threaded hole has a notch. When the rod of the clamping bolt 4c is threadedly connected with the threaded hole, the head of the clamping bolt 4c enters the slot 4d through the notch to form a clamping force on the cutter 5.

[0023] There are two guide seats arranged symmetrically, the cutter 5 is located between the two guide seats, a knife slit 6 cooperating with the cutter 5 is provided between the two guide seats, and each guide seat is provided with a through hole 7 for the pipe G to pass through. Each guide seat includes a first guide seat 8 and a second guide seat 9, one end of each first guide seat 8 is fixed to the mounting plate 2, and the other end of each first guide seat 8 is fixed to the second guide seat 9, a clearance groove 10 is formed between the two guide seats 8, the connecting arm 4b of the knife seat 4 is clearance-matched with the clearance groove 10, a guide portion 11 is provided on the opposite wall surfaces of the two second guide seats 9, and the knife slit 6 is located between the two guide portions 11. The through hole 7 passes through the second guide seat 9 and the guide portion 11. When the pipe G to be cut passes through the through hole 7, the linear drive 3 pushes the knife seat 4 to move linearly, and the knife seat 4 drives the cutter 5 to move linearly, and the pipe G is cut by the cutter 5.

[0024] Guide grooves 11a are formed above and below the two guide parts 11, respectively. The connecting arm 4b is slidably matched with the guide grooves 11a. When the connecting arm 4b moves linearly, the guide grooves 11a guide the connecting arm 4b.

[0025] The pipe clamping and feeding mechanism is located upstream of the cutting mechanism. The pipe clamping and feeding mechanism includes a driving component A, a supporting component B, and a clamping and feeding component. The supporting component is fixed to the mounting plate 2. The power output end of the driving component passes through the mounting plate 2 and the supporting component and is connected to the clamping and feeding component. The driving component A and the supporting component B rotate in coordination. The cutting mechanism is located downstream of the clamping and feeding component.

[0026] The driving component A includes a motor and a gear transmission component. The output end of the motor is connected to the input end of the gear transmission component. The output end of the gear transmission component passes through the support component B and forms a rotational fit with the support component B through a bearing. The support component B includes a support, which is fixed to the mounting plate 2.

[0027] In this embodiment, the pinching assembly is composed of two groups, one above and one below, and the pinching assembly includes a transmission wheel 12 and a pinching belt 13. The transmission wheel 12 is connected to the driving assembly A. The transmission wheel 12 is fixed to the output end of the gear transmission assembly. The pinching belt 13 is flexibly connected to the transmission wheel 12, and the surface of the pinching belt 13 is provided with friction-increasing teeth 13a. When the transmission wheel 12 rotates, the transmission wheel 12 drives the pinching belt 13 to move, thereby moving the pipe G located between the two pinching belts 13.

[0028] This embodiment also includes a guide tube assembly, which is located upstream of the pipe clamping and feeding mechanism. The guide tube assembly includes a support seat 14 and a guide tube 15. The support seat 14 is fixed to the mounting plate 2. The support seat 14 is provided with a guide hole 14a that passes through the axial end surface of the support seat 14. One end of the guide tube 15 is fixed to the end of the support seat 14 away from the pipe clamping and feeding mechanism, and the other end of the guide tube 15 is a free end. Through the action of the guide tube 15 and the support seat 14, the pipe G can be supported to prevent the pipe A from bending during the conveyance of the clamping and feeding assembly.

[0029] The working process of the utility model is:

[0030] After the head of the pipe G passes through the guide tube 15, the guide hole 14a, the interval space between the two clamping belts 13, and the through hole 7 in sequence, the upper and lower clamping belts 13 clamp the shape of the pipe G, and start the driving component A. The driving component A drives the transmission wheel 12 to rotate, and the transmission wheel 12 drives the clamping belt 13 to move. The pipe G moves under the driving action of the upper and lower clamping belts 13. When the length of the pipe section between the pipe G extending from the outside of the cutting mechanism to the knife gap 6 meets the requirements, the linear drive 3 pushes the knife holder 4 to move linearly, and the knife holder 4 drives the cutter 5 to move linearly, and the pipe G is cut by the cutter 5. The cut pipe section is ejected to the outside of the cutting mechanism by the end of the pipe G that is continuously conveyed and poured into the receiving trough S.

[0031] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention and are used to illustrate the technical solution of the present invention, rather than limiting it, let alone limiting the protection scope of the present invention. Although the utility model has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the protection scope of the claims.

Claims

1. A plastic pipe cutting device, comprising a workbench (1), a mounting plate (2), and a cutting mechanism, wherein the mounting plate (2) is fixed to the workbench (1), and the cutting mechanism is fixed to the mounting plate (2), characterized in that: It also includes a pipe clamping and feeding mechanism, which is located upstream of the cutting mechanism. The pipe clamping and feeding mechanism includes a driving component (A), a supporting component (B), and a clamping and feeding component. The supporting component is fixed to the mounting plate (2). The power output end of the driving component passes through the mounting plate (2) and the supporting component and is connected to the clamping and feeding component. The driving component (A) and the supporting component (B) are rotatably matched. The cutting mechanism is located downstream of the clamping and feeding component.

2. The plastic pipe cutting device according to claim 1, characterized in that: The cutting mechanism comprises a linear drive (3), a knife seat (4), a cutter (5), and a guide seat. The linear drive (3) is arranged on a workbench (1). One end of the knife seat (4) is fixed to a power output end of the linear drive (3). The other end of the knife seat (4) passes through a mounting plate (2) and is connected to the cutter (5). There are two guide seats and they are arranged symmetrically. The cutter (5) is located between the two guide seats. A knife slit (6) that matches the cutter (5) is provided between the two guide seats. Each guide seat is provided with a through hole (7) for a pipe to pass through.

3. The plastic pipe cutting device according to claim 2, characterized in that: Each guide seat comprises a first guide seat (8) and a second guide seat (9); one end of each first guide seat (8) is fixed to the mounting plate (2); the other end of each first guide seat (8) is fixed to the second guide seat (9); a clearance groove (10) is formed between the two guide seats (8); guide parts (11) are provided on the opposite wall surfaces of the two second guide seats (9); and the knife gap (6) is located between the two guide parts (11).

4. The plastic pipe cutting device according to claim 3, characterized in that: The knife seat (4) comprises a connecting seat (4a), a connecting arm (4b), and a clamping bolt (4c); the two ends of the connecting seat (4a) are respectively connected to a connecting arm (4b); guide grooves (11a) are respectively formed above and below the two guide parts (11); the connecting arm (4b) is slidably matched with the guide groove (11a); a clamping groove (4d) is provided on the connecting arm (4b); after the end of the cutter (5) is matched with the clamping groove (4d), the end of the cutter (5) is clamped in the clamping groove (4d) by a bolt (4c).

5. The plastic pipe cutting device according to claim 1, characterized in that: The clamping and conveying assembly comprises a transmission wheel (12) and a clamping and conveying belt (13). The transmission wheel (12) is connected to the driving assembly (A), the clamping and conveying belt (13) cooperates with the transmission wheel (12), and the surface of the clamping and conveying belt (13) is provided with friction-increasing teeth.

6. The plastic pipe cutting device according to any one of claims 1 to 5, characterized in that: The invention also comprises a guide tube assembly, which is located upstream of the pipe clamping and feeding mechanism. The guide tube assembly comprises a support seat (14) and a guide tube (15). The support seat (14) is fixed to the mounting plate (2). A guide hole (14a) penetrating the axial end surface of the support seat (14) is provided on the support seat (14). One end of the guide tube (15) is fixed to an end of the support seat (14) away from the pipe clamping and feeding mechanism, and the other end of the guide tube (15) is a free end.

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