Cutting device for plastic pipe production

Abstract

The utility model discloses a cutting device for plastic pipe production, and particularly relates to the technical field of cutting devices, the cutting device comprises a material collecting box, a semi-arc piece is fixedly installed on two fixing plates, a driving assembly is arranged on the lower portions of the fixing plates, and a positioning assembly is arranged on the left portion of the material collecting box. A portal frame is fixedly installed on the left side of the top end of the collecting box, an electric cylinder is installed in the middle of the top end of the portal frame, and a hot knife assembly is arranged on the lower portion of the portal frame. According to the cutting-off device for plastic pipe production, the electric cylinder is arranged to drive the hot knife assembly to cut a plurality of plastic pipes at the same time, compared with impact cutting, after the hot knife assembly cuts plastic materials, the cutting faces of the plastic materials are smoother and more uniform, damage to plastic parts in the cutting process is avoided, and the production efficiency is improved. The plastic pipe in the fixing plate is fixed by arranging the positioning assembly to be matched with the driving assembly, and the cutting length of the plastic pipe is adjusted by arranging the positioning assembly during fixing.

Description

Technical Field

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

[0002] Plastic pipe is a pipe primarily made of plastic. It offers numerous advantages. Firstly, it is highly corrosion-resistant, capable of withstanding the erosion of a wide range of chemicals. Therefore, it is suitable for transporting various corrosive media, such as acid and alkaline solutions, and is widely used in the chemical industry. Furthermore, plastic pipe is relatively inexpensive, offering a high cost-effectiveness ratio. Plastic pipes play a vital role in numerous fields, including building water supply and drainage, agricultural irrigation, and gas transportation. With the continuous advancement of technology, the performance of plastic pipes continues to be optimized and improved, and they are expected to be used more widely in even more fields in the future.

[0003] Chinese patent application number CN221186698U discloses a plastic pipe cutting device comprising a workbench with a conveyor track at one end of its top surface for conveying the plastic pipe to the other end of the workbench. A guide rod is located at the other end of the workbench, coaxially arranged with the plastic pipe, with its outer diameter matching the inner diameter of the pipe. An adjustment plate is mounted on the guide rod, which moves along its length. A rotating friction wheel is mounted on the bottom surface of the guide rod, with its axis perpendicular to the guide rod. When the plastic pipe is inserted into the guide rod, the outer wall of the friction wheel contacts the outer wall of the pipe. A cutter assembly is located between the corresponding guide rod and the conveyor track. This device effectively improves the accuracy of the length dimension of cut plastic pipes.

[0004] During actual use, the device uses a cutter to impact and shear the plastic pipe. Since the plastic pipe has good plasticity, the cut of the plastic pipe will be deformed after the cutter impacts and shears, thus affecting the subsequent use of the plastic pipe. Utility Model Content

[0005] The main purpose of the utility model is to provide a cutting device for plastic pipe production, which can effectively solve the problems raised above.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A cutting device for plastic pipe production includes a material collection box, two fixed plates are symmetrically installed on the top of the material collection box, a semi-arc piece is fixedly installed on the two fixed plates, a driving assembly is provided at the lower part of the fixed plate, a positioning assembly is provided at the left part of the material collection box, a gantry is fixedly installed on the left side of the top of the material collection box, an electric cylinder is installed in the middle of the top of the gantry, and a hot knife assembly is provided at the lower part of the gantry.

[0008] Preferably, the hot knife assembly includes a fixed seat, the middle part of the top of the fixed seat is fixedly connected to the output shaft of the electric cylinder, a signal control module is fixedly installed on the side of the top of the fixed seat away from the middle part, two mounting plates are symmetrically installed on both sides of the bottom of the fixed seat away from its axis, heating elements are installed on the opposite surfaces of the two mounting plates, and multiple hot wire knives are equidistantly installed on the vertical opposite surfaces of the two heating elements, and a through groove is provided at the top of the gantry above the signal control module.

[0009] Preferably, the driving assembly includes a servo motor and a semi-arc push plate, the servo motor is fixedly mounted on the rightmost fixed plate, and a screw is installed on the lower parts of the opposite surfaces of the two fixed plates for common rotation, the screw is fixedly connected to the output shaft of the servo motor through a coupling, a nut is threadedly mounted on the outer surface of the screw, the outer surface of the semi-arc push plate is in contact with the inner cavity surface of the semi-arc part, and the semi-arc push plate is fixedly connected to the nut through a connecting rod.

[0010] Preferably, the positioning assembly includes a scale guide rod, a threaded rod and a positioning plate, the scale guide rod and the threaded rod are symmetrically fixed on the upper part of the leftmost fixed plate, the positioning plate is symmetrically provided with two sliding holes on both sides of the upper part along the height direction, and the scale guide rod and the threaded rod slide with each other, a twist ring is threadedly installed on the threaded rod, and the twist ring is rotatably connected to the positioning plate.

[0011] Preferably, the positioning plate is symmetrically mounted with two legs at the lower portion on both sides along the width direction thereof, and self-locking universal wheels are fixedly mounted at the bottom ends of the two legs.

[0012] Preferably, the rightmost side of the aggregate box is open, and a feed trough communicating with the inner cavity of the aggregate box is provided on the left side of the top side of the aggregate box.

[0013] Preferably, the aggregate box is hingedly provided with opening and closing doors on the upper portions of both sides of the opening end.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the utility model, an electric cylinder is provided to drive a hot knife assembly to cut multiple plastic pipes at the same time. Compared with impact cutting, after the hot knife assembly cuts the plastic material, the cut surface of the plastic material is smoother and more uniform, avoiding damage to the plastic parts during the cutting process.

[0016] 2. During the cutting process, the utility model pushes the plastic tube on the fixed plate by setting a driving component, so that the automatic loading of the plastic tube is realized during the cutting process. At the same time, the plastic tube in the fixed plate is fixed by setting a positioning component in conjunction with the driving component. While fixing, the cutting length of the plastic tube can be adjusted by setting the positioning component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the semi-arc member and the drive assembly in the present invention;

[0019] Figure 3 This is a schematic diagram of the connection structure between the electric cylinder and the heat conducting component in the utility model;

[0020] Figure 4 This is a schematic diagram of the split structure of the positioning component in the utility model;

[0021] Figure 5 It is a partial cross-sectional schematic diagram of the aggregate box in the utility model;

[0022] Figure 6 For this utility model Figure 3 Enlarged schematic diagram of the node at A in the middle.

[0023] In the figure: 1. Collecting box; 11. Feed chute; 12. Opening and closing door; 2. Fixed plate; 3. Semi-arc part; 4. Drive assembly; 41. Servo motor; 42. Screw rod; 43. Semi-arc push plate; 44. Nut; 45. Connecting rod; 5. Gantry; 51. Through slot; 6. Electric cylinder; 7. Hot knife assembly; 71. Fixed seat; 72. Mounting plate; 73. Heating element; 74. Hot wire knife; 75. Signal control module; 8. Positioning assembly; 81. Scale guide rod; 82. Threaded rod; 83. Positioning plate; 831. Sliding hole; 84. Support leg; 85. Twist ring; 86. Self-locking universal wheel. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-Figure 5As shown, a cutting device for plastic pipe production includes a collection box 1, two fixed plates 2 are symmetrically mounted on the top of the collection box 1, and a semi-arc member 3 is fixedly mounted on the two fixed plates 2. A driving assembly 4 is provided at the bottom of the fixed plates 2, and a positioning assembly 8 is provided at the left side of the collection box 1. A gantry 5 is fixedly mounted on the left side of the top of the collection box 1, an electric cylinder 6 is mounted in the middle of the top of the gantry 5, and a hot knife assembly 7 is provided at the bottom of the gantry 5.

[0026] By setting the electric cylinder 6 to drive the hot knife assembly 7 to cut multiple plastic pipes at the same time, compared with impact cutting, after the hot knife assembly 7 cuts the plastic material, the cutting surface of the plastic material is smoother and more uniform. The cut plastic material will fall into the inner cavity of the collecting box 1 for centralized processing. During the cutting process, the driving assembly 4 is set to push the plastic pipe on the fixed plate 2, so that automatic loading of the plastic pipe is realized during the cutting process. At the same time, the positioning assembly 8 is set to cooperate with the driving assembly 4 to fix the plastic pipe in the fixed plate 2. While fixing, the cutting length of the plastic pipe is adjusted by setting the positioning assembly 8.

[0027] Specifically, the hot knife assembly 7 includes a fixing base 71. The middle portion of the top of the fixing base 71 is fixedly connected to the output shaft of the electric cylinder 6. A signal control module 75 is fixedly installed on one side of the top of the fixing base 71 away from the middle portion. Two mounting plates 72 are symmetrically installed on both sides of the bottom of the fixing base 71 away from the axis. A heating element 73 is installed on the opposite surfaces of the two mounting plates 72. A plurality of hot wire knives 74 are equidistantly installed on the vertically opposite surfaces of the two heating elements 73. A through slot 51 is formed at the top of the gantry 5 above the signal control module 75.

[0028] The heating elements 73, hot wire cutters 74, and signal control module 75 in this solution are all prior art. During use, the signal control module 75 is controlled by a remote control device to turn on and off the two heating elements 73 on the two mounting plates 72. When the two heating elements 73 are turned on, they heat the multiple hot wire cutters 74. After the multiple hot wire cutters 74 are heated to a specified temperature, the electric cylinder 6 pushes the fixing base 71 so that the multiple hot wire cutters 74 at the bottom of the fixing base 71 cut the plastic pipe. The high temperature generated by the hot wire cutters 74 makes the cut surface of the plastic material more flat and uniform.

[0029] The signal control module 75 can use the HW-726 signal control module in the prior art;

[0030] The heating element 73 may use the ks ii 260 type PTC ceramic heating element in the prior art;

[0031] The hot wire knife 74 can use the carbon fiber electric heating wire in the prior art.

[0032] The through slot 51 is provided to prevent the signal control module 75 on the fixing seat 71 from colliding with the gantry 5 when the electric cylinder 6 drives the fixing seat 71 to rise, thereby preventing the gantry 5 from being damaged.

[0033] It is worth mentioning here that the hot wire knife 74 must be heated in advance before the cutting work is carried out to avoid the hot wire knife 74 being insufficient in temperature and unable to cut the plastic pipe.

[0034] Specifically, the drive assembly 4 includes a servo motor 41 and a semi-arc push plate 43. The servo motor 41 is fixedly mounted on the rightmost fixed plate 2. The lower parts of the opposite surfaces of the two fixed plates 2 are jointly rotated with a screw rod 42. The screw rod 42 is fixedly connected to the output shaft of the servo motor 41 through a coupling. A nut 44 is threadedly mounted on the outer surface of the screw rod 42. The outer surface of the semi-arc push plate 43 is in contact with the inner surface of the semi-arc member 3. The semi-arc push plate 43 is fixedly connected to the nut 44 through a connecting rod 45.

[0035] The plastic pipe is placed into the semi-arc piece 3. Since the semi-arc piece 3 is semi-arc-shaped, the multiple plastic pipes placed in the semi-arc piece 3 will roll toward the bottom of the slope of the semi-arc piece 3. In this way, the multiple plastic pipes are piled up in the bottom of the slope of the upper surface of the semi-arc piece 3, which can effectively prevent the plastic pipes in the semi-arc piece 3 from tilting, and prevent the cutting surfaces of the multiple plastic pipes from being inconsistent due to the tilt of the plastic pipe position in the subsequent cutting process;

[0036] When the servo motor 41 is started and the servo motor 41 drives the nut 44 to move, the nut 44 drives the semi-arc push plate 43 through the connecting rod 45 to push the multiple plastic pipe pieces in the semi-arc piece 3, thereby realizing the function of automatic feeding of plastic pipes during the cutting process.

[0037] Furthermore, the positioning assembly 8 includes a scale guide rod 81, a threaded rod 82 and a positioning plate 83. The scale guide rod 81 and the threaded rod 82 are symmetrically fixed to the upper part of the leftmost fixed plate 2. The positioning plate 83 is symmetrically provided with two sliding holes 831 along the upper sides of the height direction thereof, which slide with the scale guide rod 81 and the threaded rod 82. A screw ring 85 is threadedly mounted on the threaded rod 82, and the screw ring 85 is rotatably connected to the positioning plate 83.

[0038] Two legs 84 are symmetrically mounted on the lower portion of the positioning plate 83 on both sides along its width direction, and the bottom ends of the two legs 84 are fixedly mounted with self-locking universal wheels 86;

[0039] After the semi-arc push plate 43 pushes one end of the plastic tube, the other end of the plastic tube will abut against the positioning plate 83, thereby clamping and fixing the plastic tube, avoiding unnecessary movement of the plastic tube during the cutting process, resulting in uneven cutting surface;

[0040] Push the positioning plate 83, and the positioning plate 83 slides along the horizontal direction of the scale guide rod 81 and the threaded rod 82 through the two self-locking universal wheels 86 on the support legs 84 at its bottom. In this way, the distance between the positioning plate 83 and the semi-arc push plate 43 can be adjusted, thereby adjusting the cutting length of the plastic pipe. After adjusting the position of the positioning plate 83, screw the screw ring 85 on the threaded rod 82 to limit the positioning plate 83 on the outer surface of the threaded rod 82, so as to prevent the other end of the plastic pipe from pushing the positioning plate 83 to slide when the semi-arc push plate 43 pushes the plastic pipe.

[0041] Specifically, the rightmost side of the aggregate box 1 is open, and a feed chute 11 communicating with the inner cavity of the aggregate box 1 is provided on the left side of the top of the aggregate box 1;

[0042] The collecting box 1 is hingedly provided with an opening and closing door 12 on the upper part of both sides of the opening end;

[0043] The cut plastic pipes fall into the inner cavity of the collection box 1 through the feed chute 11 for centralized storage. An opening and closing door 12 is hingedly installed at the end of the collection box 1. The opening and closing door 12 can be opened to facilitate the removal of the plastic material in the inner cavity of the collection box 1.

[0044] It should be noted that the specific installation method, circuit connection method and control method of the servo motor 41, electric cylinder 6 and signal control module 75 used in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for plastic pipe production, comprising a collecting box (1), characterized in that: Two fixed plates (2) are symmetrically installed on the top of the material collection box (1), and a semi-arc member (3) is fixedly installed on the two fixed plates (2). A driving assembly (4) is provided at the lower part of the fixed plate (2). A positioning assembly (8) is provided at the left part of the material collection box (1). A gantry (5) is fixedly installed on the left side of the top of the material collection box (1), an electric cylinder (6) is installed in the middle of the top of the gantry (5), and a hot knife assembly (7) is provided at the lower part of the gantry (5).

2. A cutting device for plastic pipe production according to claim 1, characterized in that: The hot knife assembly (7) includes a fixing seat (71), the middle part of the top of the fixing seat (71) is fixedly connected to the output shaft of the electric cylinder (6), a signal control module (75) is fixedly installed on the side of the top of the fixing seat (71) away from the middle part, two mounting plates (72) are symmetrically installed on both sides of the bottom of the fixing seat (71) away from the axis, heating elements (73) are installed on the opposite surfaces of the two mounting plates (72), and a plurality of hot wire knives (74) are equidistantly installed on the vertical opposite surfaces of the two heating elements (73), and a through slot (51) is provided on the top of the gantry (5) above the signal control module (75).

3. The cutting device for plastic pipe production according to claim 1, characterized in that: The driving assembly (4) includes a servo motor (41) and a semi-arc push plate (43), wherein the servo motor (41) is fixedly mounted on the rightmost fixed plate (2), and a screw rod (42) is mounted on the lower parts of the opposite surfaces of the two fixed plates (2) for common rotation, wherein the screw rod (42) is fixedly connected to the output shaft of the servo motor (41) through a coupling, and a nut (44) is threadedly mounted on the outer surface of the screw rod (42), and the outer surface of the semi-arc push plate (43) is in contact with the inner cavity surface of the semi-arc member (3), and the semi-arc push plate (43) is fixedly connected to the nut (44) through a connecting rod (45).

4. The cutting device for plastic pipe production according to claim 1, characterized in that: The positioning assembly (8) comprises a scale guide rod (81), a threaded rod (82) and a positioning plate (83). The scale guide rod (81) and the threaded rod (82) are symmetrically fixed on the upper part of the leftmost fixed plate (2). The positioning plate (83) is symmetrically provided with two sliding holes (831) on both sides of the upper part thereof in the height direction, and the scale guide rod (81) and the threaded rod (82) slide with each other. A screw ring (85) is threadedly installed on the threaded rod (82), and the screw ring (85) is rotatably connected to the positioning plate (83).

5. The cutting device for plastic pipe production according to claim 4, characterized in that: The positioning plate (83) is symmetrically provided with two supporting legs (84) at the lower part on both sides along the width direction thereof, and the bottom ends of the two supporting legs (84) are fixedly provided with self-locking universal wheels (86).

6. The cutting device for plastic pipe production according to claim 1, characterized in that: The rightmost side of the material collecting box (1) is open, and a feed trough (11) communicating with the inner cavity of the material collecting box (1) is provided on the left side of the top end of the material collecting box (1).

7. A cutting device for plastic pipe production according to claim 6, characterized in that: The collecting box (1) is hingedly provided with opening and closing doors (12) on the upper parts of both sides of the opening end.

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