Device for removing welding ribs on inner wall of basic pipe of lining plastic pipe

Abstract

The utility model discloses a device for removing welding ribs on the inner wall of a basic pipe of a lining plastic pipe, which comprises a rack, a driving mechanism, a scraping mechanism, a clamping mechanism, a feeding mechanism and a control switch, the driving mechanism comprises a chain, a first driving motor and a bracket, the bracket is connected to the rack in a rolling manner, and the chain is connected to the scraping mechanism. A hook matched with a tooth seam of the transmission chain is arranged at the end of a connecting rod hinged to the bracket. The scraping mechanism comprises an arrow shaft, one end of the arrow shaft is connected with the bracket, and a scraper is arranged at the other end of the arrow shaft; the clamping mechanism comprises a first push rod, clamping pieces are arranged at the position of the rack and at the end of a telescopic rod of the first push rod, and a guide sleeve is arranged on the side, located on the driving mechanism, of the clamping mechanism. The feeding mechanism comprises a plurality of bearing rollers, and grooves for clamping basic pipes are formed in the circumferential faces of the bearing rollers. The device for removing the welding ribs on the inner wall of the basic pipe of the plastic-lined pipe has the beneficial effects of being safe to use and reliable in welding rib removal.

Description

Technical Field

[0001] The utility model relates to the technical field of removal equipment, in particular to a device for removing weld ribs on the inner wall of a plastic-lined pipe foundation pipe. Background Art

[0002] Plastic-lined pipes are based on ordinary carbon steel pipes and lined with thermoplastics with excellent chemical properties. Plastic-lined pipes are usually manufactured using hot rotational molding. The weld ribs on the inner wall of the base pipe (steel pipe) when it leaves the factory often cause the thickness of the thermoplastic lining to be inconsistent, which has a certain impact on the quality of the product. Therefore, removing the weld ribs on the inner wall of the base pipe is an important step in the production of plastic-lined pipes. Utility Model Content

[0003] In order to overcome the above-mentioned deficiencies in the prior art, the utility model provides a device for removing the weld ribs on the inner wall of a plastic-lined pipe foundation pipe, which is safe to use and reliable in removing the weld ribs.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A device for removing weld ribs on the inner wall of a plastic-lined pipe foundation pipe comprises a frame, a driving mechanism, a scraping mechanism, a clamping mechanism, a feeding mechanism and a control switch, wherein the driving mechanism comprises a chain, a first driving motor and a bracket, wherein the first driving motor is used to provide power for the transmission chain, the bracket is rollingly connected to the frame, a connecting rod is hinged at the bracket, and a hook adapted to the tooth gap of the transmission chain is arranged at the end of the connecting rod;

[0006] The scraping mechanism comprises an arrow shaft, one end of which is connected to the bracket, and the other end of which is provided with a scraper;

[0007] The clamping mechanism comprises a first push rod, the frame and the end of the telescopic rod of the first push rod are provided with a clip adapted to the outer wall of the base pipe, and the clamping mechanism is provided with a guide sleeve on one side of the driving mechanism;

[0008] The feeding mechanism comprises a plurality of supporting rollers, and a groove for clamping the base pipe is arranged on the circumference of each supporting roller;

[0009] The control switch is used to control the first driving motor and the first push rod.

[0010] Preferably, a positioning rod is provided between the bracket and the connecting rod.

[0011] Preferably in any of the above schemes, a support rod is provided at the bottom of the clip connected to the frame, a through hole for accommodating the support rod is provided at the frame, an external thread is provided at the outside of the support rod, and the support rod is fixedly installed at the frame by a fastening nut; an adjustable base is provided at the bottom of the frame on each supporting roller side.

[0012] Preferably, in any of the above schemes, the inner diameter of the guide sleeve is provided with several models, a mounting seat is provided at the frame, an internal threaded through hole is provided at the mounting seat, and each guide sleeve is threadedly connected to the mounting seat.

[0013] Preferably, in any of the above schemes, a first travel switch and a second travel switch for controlling the travel of the cutter head are provided on the frame, and the first travel switch and the second travel switch are respectively connected in series with the circuit of the first drive motor.

[0014] In any of the above schemes, it is preferred that the first travel switch and the second travel switch are any one of a reed switch, an infrared beam sensor, and a contact switch.

[0015] Preferably in any of the above schemes, the feeding mechanism also includes a first slide arranged in an inclined shape, the first slide is arranged on one side of the frame, the first slide is rotatably connected to a material tapping plate close to the frame, and a second driving motor drives the material tapping plate.

[0016] Preferably, in any of the above schemes, a baffle is provided at the front end of the material-diverting plate, and a gap between the baffle and the first slideway is provided for a single basic pipe to pass through.

[0017] Preferably, in any of the above solutions, the relative height between the baffle and the first slideway is adjustable.

[0018] Preferably in any of the above schemes, the feeding mechanism also includes a second slide arranged in an inclined shape, the second slide is arranged on the opposite side of the first slide, at least two levers are hinged at the frame, and a second push rod is arranged between the other end of each lever and the frame.

[0019] The device for removing weld ribs on the inner wall of the plastic-lined pipe foundation pipe of the utility model clamps the foundation pipe to be processed by a clamping mechanism, controls the driving mechanism and the clamping mechanism to perform actions by a control switch, and does not need to be held by hand during use, so it is safe to use. Under the control of the clamping mechanism, the scraper of the scraping mechanism is driven by the driving mechanism to scrape off the weld ribs on the inner wall of the foundation pipe, and the cutter head is centered by the guide sleeve during use, so the weld ribs can be removed reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of an embodiment of a device for removing weld ribs on the inner wall of a plastic-lined pipe foundation pipe of the utility model.

[0021] Figure 2 It is a schematic diagram of a preferred embodiment of the matching of the clamping piece and the frame of the device for removing the inner wall weld ribs of the plastic-lined pipe foundation pipe of the utility model.

[0022] Figure 3 It is a schematic diagram of an embodiment of the matching guide sleeve and mounting seat of the device for removing weld ribs on the inner wall of the plastic-lined pipe foundation pipe of the utility model.

[0023] Figure 4 It is a schematic diagram of a preferred embodiment of the first slide and the second slide of the device for removing the weld ribs on the inner wall of the plastic-lined pipe foundation pipe of the utility model.

[0024] Description of the numbers in the figure:

[0025] 101-chain; 102-connecting rod; 103-positioning rod; 104-bracket; 105-arrow shaft; 106-guide sleeve; 107-mounting seat; 108-first push rod; 109-supporting roller; 110-first stroke switch; 111-frame; 112-second stroke switch; 113-clamp; 114-adjustable base; 115-support rod; 116-cutter head; 117-blocking piece; 118-mounting plate; 119-second push rod; 120-shift rod; 121-second slide; 122-first slide; 123-shifting plate. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0027] In the description of each embodiment of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the description of the various embodiments of the present utility model, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] In the description of each embodiment of the present invention, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0030] Embodiment 1:

[0031] Plastic-lined pipes are based on ordinary carbon steel pipes and lined with thermoplastics with excellent chemical properties. Plastic-lined pipes are usually manufactured using hot rotational molding. The weld ribs on the inner wall of the base pipe (steel pipe) when it leaves the factory often cause the thickness of the thermoplastic lining to be inconsistent, which has a certain impact on the quality of the product. Therefore, removing the weld ribs on the inner wall of the base pipe is an important step in the production of plastic-lined pipes.

[0032] like Figure 1 , 3In the illustrated embodiment, the frame 111 is used to install various functional mechanisms and components, and the frame 111 can be welded by steel plates, angle steels, square tubes and other profiles. The driving mechanism is used to provide power for the scraper to scrape the weld ribs on the inner wall of the base pipe. Specifically, the driving mechanism includes a chain 101, a first driving motor and a bracket 104. The frame 111 is rotatably connected to a transmission wheel, and the peripheral surface of the transmission wheel is provided with teeth meshing with the chain 101. The first driving motor is used to drive the chain 101. The use of a chain can ensure that the transmission wheel does not slip during use. In order to reduce the friction force when the bracket 104 moves, a roller is provided at the bottom of the bracket 104, and the bracket 104 is connected to the frame 111 by rolling through the roller. In order to facilitate the positioning of the bracket 104 and the chain 101, a connecting rod 102 is hinged at one end of the bracket 104, and a hook is provided at the end of the connecting rod 102. The shape of the hook is adapted to the tooth gap of the chain 101, and the hook is stuck in the tooth gap of the chain 101. When in use, the chain 101 is driven to rotate by the first driving motor, and the chain 101 drives the bracket 104 to move along the frame 111, and drives the scraping mechanism to move through the bracket 104. Among them, in order to prevent the hook at the end of the connecting rod 102 from escaping from the gap of the chain 101 when the connecting rod 102 is in use, a positioning rod 103 is provided between the bracket 104 and the connecting rod 102, and the two ends of the positioning rod 103 are movably connected to the connecting rod 102 and the bracket 104.

[0033] The scraping mechanism includes an arrow shaft 105, one end of which is connected to the bracket 104, and the other end of the arrow shaft 105 is provided with a scraper, wherein the scraper can be in the form of a flat-blade scraper, and the scraper can be used to scrape the weld ribs on the inner wall of the processed base profile.

[0034] The clamping mechanism is used to fix the end of the base pipe to be processed. Specifically, the clamping mechanism includes a first push rod 108. The end of the telescopic rod of the first push rod 108 and the frame 111 are provided with a clip 113 adapted to the outer wall of the base pipe to be processed. The guide sleeve 106 of the clamping mechanism facing the driving mechanism side is used to align the cutter head 116 with the base pipe to be processed. The length of the guide sleeve 106 should be set to ensure that after each scraping operation is completed and the first driving motor stops working, the inertia of the driving mechanism and the arrow shaft 105 causes the cutter head 116 to move with a certain margin.

[0035] Among them, the feeding mechanism includes a plurality of supporting rollers 109, each supporting roller 109 is rotatably connected to the frame 111. In order to prevent the basic pipe from falling when the supporting rollers 109 receive the basic pipe, a groove is provided on the circumference of each supporting roller 109. When in use, the basic pipe to be processed is placed on the upper part of each supporting roller 109, and the end of the basic pipe to be processed is pushed to the clamping mechanism by applying external force manually.

[0036] The control switch includes a forward switch, a reverse switch and a first push rod switch for controlling the rotation of the first drive motor. The control switch can be installed on the side of the frame 111 according to the convenience of the worker's operation.

[0037] Embodiment 2:

[0038] On the basis of Example 1, Figure 1 , 2 In the illustrated embodiment, in order to improve the applicability of the device to basic pipes of different specifications and diameters, a support rod 115 is provided at the bottom of the clip 113 connected to the frame 111, and an external thread is provided at the outer wall of the support rod 115. A through hole for accommodating the support rod 115 is provided at the frame 111, and the support rod 115 is fixedly installed at the frame 111 by tightening nuts and through holes. An adjustable base 114 is provided at the bottom of the frame 111 on the side of each supporting roller 109. When the diameter of the basic pipe to be processed changes, the height of the clip 113 connected to the frame 111 and the height of the adjustable base 114 of the frame on the side of each supporting roller 109 are adjusted, so as to achieve the centering of the basic pipe to be processed and the cutter head 116.

[0039] like Figure 3 In the illustrated embodiment, the inner diameter of the guide sleeve 106 is provided with several models, a mounting seat 107 is provided at the frame 111, an internal threaded through hole is provided at the mounting seat 107, and each guide sleeve 106 is threadedly connected to the mounting seat 107. When the diameter of the base pipe to be processed changes, this design can quickly replace the guide sleeve 106 adapted to the cutter head 116.

[0040] Embodiment 3:

[0041] On the basis of Example 1 or 2, Figure 1 In the illustrated embodiment, to ensure that the cutter head 116 has completed the removal of the weld ribs on the inner wall of the base pipe, and after the cutter head 116 returns to its original position, the forward and reverse movements of the first drive motor can be stopped in time. The frame 111 is provided with a first travel switch 110 and a second travel switch 112 for controlling the travel of the cutter head 116, the first travel switch 110 and the second travel switch 112 are respectively connected in series with the circuit of the first drive motor, and the first travel switch 110 and the second travel switch 112 are respectively movably arranged on the frame 111.

[0042] The first travel switch 110 and the second travel switch 112 can be any one of a reed switch, an infrared sensor, and a contact switch.

[0043] Embodiment 4:

[0044] On the basis of any one of embodiments 1-3, Figure 4In the illustrated embodiment, in order to improve the convenience of feeding and reduce the use of manual labor, the feeding mechanism includes a first slideway 122 arranged in an inclined shape, the first slideway 122 is arranged on one side of the frame 111, the first slideway 122 is rotatably connected to a material-dispensing plate 123 near the frame 111, the second drive motor provides power for the rotation of the material-dispensing plate 123, and a groove for accommodating the basic pipe is arranged on the outer peripheral surface of the material-dispensing plate 123. When the basic pipe to be processed moves to the material-dispensing plate 123, the material-dispensing plate 123 is driven to rotate by the second drive motor, so that the basic pipe to be processed is sent to the other side of the material-dispensing plate 123, and slides to the upper part of the supporting roller 109 through the first slideway 122. A control button for controlling the action of the second drive motor is arranged at the control switch. In order to reduce the load of the second drive motor and reduce the speed of the material-dispensing plate 123 when in use, a reducer is arranged at the second drive motor.

[0045] like Figure 4 In the illustrated embodiment, a baffle 117 is provided at the front end of the material-diverting plate 123, and a gap between the baffle 117 and the first slideway 122 is provided for a single basic pipe, thereby ensuring that the basic pipe to be processed will not be accumulated at the front end of the material-diverting plate. In order to adapt to basic pipes of different diameters, mounting plates 118 are provided on the side of the baffle 117 and the side of the first slideway 122. A plurality of mounting holes for adjusting the mounting height of the baffle 117 are provided on the mounting plate 118 located at the baffle 117. The baffle 117 and the first slideway 122 are fixed by bolts through the mounting plate 118.

[0046] like Figure 4 In the illustrated embodiment, in order to facilitate the delivery of the processed basic pipe, the feeding mechanism also includes a second slide 121 arranged in an inclined state, and the second slide 121 is arranged on the side opposite to the first slide 122. At least two levers 120 are hinged at the frame 111, wherein each lever 120 is arranged in a curved shape, and a second push rod 119 is arranged between the end of each lever 120 and the frame 111. In order to ensure that the second push rod 119 is not restricted by the system's movement freedom when the lever 120 is lifted, the cylinder body of the second push rod 119 is also connected to the frame 111 in a hinged manner.

[0047] When in use, the lever 120 is propped up by the second push rod 119, and the lever 120 lifts the processed basic profile. The processed basic profile slides along the lever 120 to the second slide 121 under the action of gravity, and is collected to a designated position through the second slide 121.

[0048] The embodiments described above are only preferred specific implementation methods of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present utility model according to the technical solution and utility model concept of the present utility model, which should be covered by the protection scope of the present utility model.

Claims

1. A device for removing weld ribs on the inner wall of a plastic-lined pipe foundation pipe, comprising a frame (111), a driving mechanism, a scraping mechanism, a clamping mechanism, a feeding mechanism and a control switch, characterized in that: The driving mechanism comprises a chain (101), a first driving motor and a bracket (104), wherein the first driving motor is used to provide power for the transmission chain (101), the bracket (104) is rollingly connected to the frame (111), a connecting rod (102) is hinged on the bracket (104), and a hook adapted to fit the tooth gap of the transmission chain (101) is provided at the end of the connecting rod (102); The scraping mechanism comprises an arrow shaft (105), one end of the arrow shaft (105) is connected to the bracket (104), and the other end is provided with a scraper; The clamping mechanism comprises a first push rod (108), a clamping piece (113) adapted to the outer wall of the base pipe is arranged at the frame (111) and at the end of the telescopic rod of the first push rod (108), and a guide sleeve (106) is arranged on one side of the clamping mechanism located at the driving mechanism; The feeding mechanism comprises a plurality of supporting rollers (109), and a groove for clamping the base pipe is arranged on the circumference of each supporting roller (109); The control switch is used to control the first driving motor and the first push rod (108).

2. The device for removing the inner wall weld ribs of the plastic-lined pipe base material according to claim 1, characterized in that: A positioning rod (103) is provided between the bracket (104) and the connecting rod (102).

3. The device for removing the inner wall weld ribs of the plastic-lined pipe base material according to claim 1, characterized in that: A support rod (115) is provided at the bottom of a clip (113) connected to the frame (111); a through hole for accommodating the support rod (115) is provided at the frame (111); an external thread is provided at the outside of the support rod (115); and the support rod (115) is fixedly installed at the frame (111) by a fastening nut; An adjustable base (114) is provided at the bottom of the frame (111) on the side of each supporting roller (109).

4. The device for removing the inner wall weld ribs of the plastic-lined pipe base material according to claim 3, characterized in that: The inner diameter of the guide sleeve (106) is provided with several models, a mounting seat (107) is provided at the frame (111), an internal thread through hole is provided at the mounting seat (107), and each guide sleeve (106) is threadedly connected to the mounting seat (107).

5. The device for removing the inner wall weld ribs of the plastic-lined pipe base material according to claim 1, characterized in that: A first travel switch (110) and a second travel switch (112) for controlling the travel of the cutter head (116) are arranged on the frame (111); the first travel switch (110) and the second travel switch (112) are respectively connected in series with the circuit of the first drive motor.

6. The device for removing the inner wall weld ribs of the plastic-lined pipe base material according to claim 5, characterized in that: The first travel switch (110) and the second travel switch (112) are any one of a reed switch, an infrared radiation sensor, and a contact switch.

7. The device for removing the inner wall weld ribs of the plastic-lined pipe base material according to claim 1, characterized in that: The feeding mechanism further comprises a first slideway (122) arranged in an inclined shape, the first slideway (122) being arranged on one side of the frame (111), the first slideway (122) being rotatably connected to a material-dispensing plate (123) near the frame (111), and A second driving motor drives the material-diverting plate (123).

8. The device for removing the inner wall weld ribs of the plastic-lined pipe base material according to claim 7, characterized in that: A baffle (117) is arranged at the front end of the material-dispensing plate (123), and a gap between the baffle (117) and the first slideway (122) is provided for a single basic pipe to pass through.

9. The device for removing the inner wall weld ribs of the plastic-lined pipe base material according to claim 8, characterized in that: The relative height between the blocking piece (117) and the first slideway (122) is adjustable.

10. The device for removing the inner wall weld ribs of the plastic-lined pipe base material according to claim 7 or 8, characterized in that: The feeding mechanism also includes a second slideway (121) arranged in an inclined shape, the second slideway (121) being arranged on a side opposite to the first slideway (122), at least two shifting rods (120) being hingedly connected to the frame (111), and a second push rod (119) being arranged between the other end of each shifting rod (120) and the frame (111).

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