Traction machine for building plastic pipe production
By designing a traction machine for the production of building plastic pipes, using a single motor and passing through a second traction part with adjustable height, the problems of long distance adjustment time and asynchronous traction in the prior art are solved, and efficient and stable pipe production is achieved.
Patent Information
- Application Number
- CN202411766471.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-03-11
AI Technical Summary
When the existing pipe crawler traction machines adjust the spacing according to the actual pipe diameter, the time is too long, and a single power source can easily lead to asynchronous traction, affecting the quality of the pipe.
A traction machine for the production of building plastic pipes is designed, and the first and second traction parts are driven by a single motor, so that the adjustability of the height of the second traction part is achieved by adjusting the assembly, and through the sliding limiting component and the sliding engagement assembly, the position change of the traction motor is synchronized with the height adjustment of the second traction part.
The consistency of the transmission rate of the first and second traction parts is achieved, asynchronous traction is avoided, the power source structure is simplified, the disassembly work when adapting to different pipes is reduced, and the production efficiency and pipe quality are improved.
Smart Images
Figure CN119589924A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of building material production equipment, in particular to a traction machine for producing building plastic pipes. Background Art
[0002] The pipe traction machine is a mechanical equipment used for extrusion and traction of plastic pipes, hoses and various plastic profiles.
[0003] The pipe crawler tractor mainly achieves traction by clamping and friction between the upper and lower crawlers. Therefore, the synchronization of the upper and lower crawlers is very important, because asynchrony will lead to the outer wall quality of the pipe and the wall thickness of the pipe groove. Crawler tractors are often used for the production of large-diameter pipes.
[0004] The current solutions include single power source and dual power source. The single power source uses a motor to drive the upper and lower tracks to start synchronously, which requires a change in the direction of rotation. At the same time, the single power source often cannot adjust the spacing between the upper and lower tracks, that is, it cannot be adjusted according to the actual diameter of the pipe. The dual power source uses dual motors to drive the upper and lower tracks to start synchronously, which requires a synchronizer connection. However, if any motor stops, has poor contact or unstable voltage, it will cause asynchronism.
[0005] At present, if a single power source is used to adjust the actual pipe diameter, a large number of accessories need to be replaced, resulting in a long production line downtime. During the replacement process, in order to ensure the fluidity of the plastic particles, the extruder needs to maintain the temperature at all times.
[0006] Therefore, it is necessary to provide a traction machine for producing building plastic pipes to solve the above-mentioned technical problems. Summary of the invention
[0007] In order to solve the above technical problems, the present invention provides a traction machine for producing building plastic pipes, which is used to solve the problem that it takes too long for a single-power-source pipe crawler traction machine to adjust the spacing according to the actual pipe diameter.
[0008] The present invention provides a traction machine for producing building plastic pipes, comprising a base and a driving assembly, wherein an adjustment assembly is installed on the top of the base, wherein the adjustment assembly is provided with a first traction part and a second traction part from bottom to top, wherein the plastic pipe passes through the space between the first traction part and the second traction part, wherein the first traction part is fixed, and the height of the second traction part is adjusted by the adjustment assembly;
[0009] The driving assembly includes a traction motor, a shaft head of the traction motor is connected to a second transmission gear, the second transmission gear is connected to a second driving gear of a second traction part via a second synchronous belt, a shaft tail of the traction motor is connected to a first transmission gear, the first transmission gear is connected to a first driving gear of a first traction part via a first synchronous belt, and a direction-changing component for reversing the power direction is installed between the shaft head and the shaft tail of the traction motor;
[0010] The traction motor is mounted on the sliding limiter component;
[0011] The sliding limit component comprises a first sliding plate, a second sliding plate and a limit shell, the limit shell is located between the first sliding plate and the second sliding plate, the first sliding plate and the second sliding plate are provided with arc-shaped sliding grooves of the same size, the front side of the first sliding plate is provided with arc-shaped teeth, and a sliding gear is meshed with the arc-shaped teeth, the sliding gear is connected to the limit shell through a connecting rod passing through the arc-shaped sliding groove of the first sliding plate, and the connecting rod also passes through the arc-shaped sliding groove of the second sliding plate and is fixedly connected to the traction motor through a plate-shaped member;
[0012] The sliding limiting component also includes a sliding engaging assembly for limiting the bidirectional movement of the traction motor along the arc-shaped slide rail.
[0013] Preferably, the second traction part includes two traction shafts, tracks and clamping plates, the outer walls of the two groups of traction shafts are surrounded by tracks, and clamping plates are equidistantly arranged on the outer sides of the tracks. A second driving gear is connected to the left side of the second traction part and located at the center of the traction shaft. The structure of the first traction part is the same as that of the second traction part, and a first driving gear is connected to the left side of the first traction part and located at the center of the traction shaft.
[0014] Preferably, the adjustment assembly comprises a bracket and a sliding column, two groups of sliding columns are symmetrically arranged at the bottom of the bracket, a first support plate is fixedly arranged at the bottom of the two groups of sliding columns, and two ends of the first support plate are connected to two traction shafts of the first traction part respectively through bearings;
[0015] A second support plate is slidably nested on the top of the two groups of sliding columns, and two ends of the second support plate are connected to the two traction shafts of the second traction part through bearings respectively. An adjusting stud is connected to the middle part of the second support plate through a bearing. The adjusting stud thread passes through the bracket and is connected to a rotating disk. The rotating disk drives the adjusting stud to rotate so that the height of the second support rod can be adjusted up and down.
[0016] Preferably, the direction changing component includes a first bevel gear, a second bevel gear and a direction changing bevel gear, the first transmission gear is connected to the first bevel gear, the first bevel gear is meshed with one side of the direction changing bevel gear, the other side of the direction changing bevel gear is meshed with the second bevel gear, and the second bevel gear is connected to the second transmission gear.
[0017] Preferably, the arc of the arc-shaped slide groove takes the first drive gear as the center point, the first synchronous belt between the first drive gear and the first transmission gear is always in a taut state, the adjustment component drives the second traction part to move up and down, and at the same time, the traction motor moves synchronously along the arc-shaped slide groove under the guidance of the sliding engagement component to adapt to the height change of the second traction part.
[0018] Preferably, the sliding locking assembly includes a limit plate, which is located between the first sliding plate and the second sliding plate, and two groups of limit racks are provided on the outer wall of the limit plate, and the two groups of limit racks are oriented in opposite directions. The sliding locking assembly also includes two groups of rotating parts, and the two groups of rotating parts are located on one side of the limit shell. A torsion spring is fixed to the front end of any rotating part, and one end of the torsion spring is connected to a locking tooth, and the locking tooth corresponds to a group of limit racks to lock and limit reverse sliding. The front and rear parts of the rod body of the rotating part are connected by threads, and the rotation of a single rotating part causes the locking tooth to disengage from the corresponding limit rack to release the reverse sliding restriction.
[0019] Preferably, a group of teeth of the limit rack are inclined upward along an arc, the traction motor slides upward along the arc-shaped groove, and the sliding engagement assembly and the locking teeth adapted to the limit rack slide upward along the teeth inclined upward, the traction motor slides downward along the arc-shaped groove, and the sliding engagement assembly and the locking teeth adapted to the limit rack are engaged in the opposite surface of the teeth inclined upward to form a limit on the reverse sliding.
[0020] Preferably, a group of teeth of the limit rack are inclined downward along an arc, the traction motor slides downward along the arc-shaped groove, and the sliding engagement assembly and the locking teeth adapted to the limit rack slide downward along the teeth inclined downward, the traction motor slides upward along the arc-shaped groove, and the sliding engagement assembly and the locking teeth adapted to the limit rack are engaged in the opposite surface of the teeth inclined downward to limit the reverse sliding.
[0021] Compared with the prior art, the traction machine for producing building plastic pipes provided by the present invention has the following beneficial effects:
[0022] 1. The present invention uses a single motor as the power source for the first traction part and the second traction part, so that the transmission rates of the first traction part and the second traction part are consistent, and no synchronizer is required. At the same time, asynchronous traction caused by a pause or poor contact of any of the dual power sources can be avoided, resulting in differences in the wall thickness of the plastic pipe.
[0023] 2. In order to adapt to the diameters of different pipes, the present invention has an adjustable distance between the first traction part and the second traction part, wherein the first traction part is fixed, and the second traction part completes height adjustment through an adjustment component. While the height of the second traction part is adjusted, the sliding limit component drives the traction motor to use the first driving gear of the first traction part as the center point and the length of the first synchronous belt as the radius. The traction motor slides along the arc-shaped slide groove to adapt to the height adjustment of the second traction part, which is conducive to completing the change of the position of the traction motor while adjusting the height of the second traction part, and always keeping the second synchronous belt in a straight state, which is conducive to greatly reducing the large number of disassembly actions required for a single power source to adapt to different pipes.
[0024] 3. In the present invention, when the second traction part needs to be raised in height, the limit rack with the tooth pattern tilted downward is selected, and the rotating part adapted thereto is rotated so that the locking teeth are disengaged from the limit rack with the tooth pattern tilted downward, thereby releasing the reverse sliding, and allowing the traction motor to move upward along the arc-shaped grooves of the first sliding plate and the second sliding plate. Similarly, when the second traction part needs to be lowered in height, the limit rack with the tooth pattern tilted upward is selected, and the rotating part adapted thereto is rotated so that the locking teeth are disengaged from the limit rack with the tooth pattern tilted upward, thereby releasing the reverse sliding, and allowing the traction motor to move downward along the arc-shaped grooves of the first sliding plate and the second sliding plate. The two groups of rotating parts are rotated to a predetermined angle, and the two locking teeth are respectively engaged in the limit racks adapted thereto under the action of the torsion spring, thereby limiting the upward and downward sliding, thereby fixing the traction motor, which is beneficial to ensuring the stability of the traction motor after the position change. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 The overall schematic diagram of the traction machine for producing building plastic pipes provided by the present invention;
[0026] Figure 2 A schematic diagram of an adjustment assembly of a traction machine for producing building plastic pipes provided by the present invention;
[0027] Figure 3 A schematic diagram of a first traction part and a second traction part of a traction machine for producing building plastic pipes provided by the present invention;
[0028] Figure 4 A schematic diagram showing the positions of the first driving gear and the second driving gear of the traction machine for producing building plastic pipes provided by the present invention at the first traction part and the second traction part;
[0029] Figure 5 A schematic diagram of a driving assembly of a traction machine for producing building plastic pipes provided by the present invention;
[0030] Figure 6A schematic diagram of a direction-changing component of a tractor for producing building plastic pipes provided by the present invention;
[0031] Figure 7 The overall schematic diagram of the sliding limiter component of the traction machine for producing building plastic pipes provided by the present invention;
[0032] Figure 8 A schematic diagram showing the structure between the first sliding plate and the second sliding plate of the sliding limiter component of the traction machine for producing building plastic pipes provided by the present invention;
[0033] Fig. 9 A schematic diagram of a sliding engagement assembly of a traction machine for producing building plastic pipes provided by the present invention.
[0034] Figure numerals: 1, base; 2, first traction part; 21, first drive gear; 3, second traction part; 31, clamping plate; 32, crawler; 33, traction shaft; 34, second drive gear; 4, adjustment assembly; 41, rotating disk; 42, bracket; 43, adjustment stud; 44, second support plate; 45, sliding column; 46, first support plate; 5, drive assembly; 51, first synchronous belt; 52, first transmission gear; 53, second transmission gear; 54, second Synchronous belt; 55, changing component; 551, first bevel gear; 552, second bevel gear; 553, changing bevel gear; 56, traction motor; 6, sliding limit component; 61, limit shell; 62, sliding gear; 63, second sliding plate; 64, arc-shaped tooth; 65, arc-shaped slide groove; 66, first sliding plate; 67, sliding engaging assembly; 671, limit plate; 672, rotating part; 673, torsion spring; 674, locking tooth; 675, limit rack. DETAILED DESCRIPTION
[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0036] Embodiment 1
[0037] A traction machine for producing building plastic pipes, comprising a base 1 and a driving assembly 5. An adjustment assembly 4 is installed on the top of the base 1, and the height adjustment of the second traction part 3 is completed by adjusting the assembly. The adjustment assembly 4 is provided with a first traction part 2 and a second traction part 3 from bottom to top. The plastic pipe is clamped and synchronously moved by the first traction part 2 and the second traction part 3 to form traction. By providing a constant traction force and speed, it is ensured that the pipe is pulled out of the mold at a stable speed during the production process, and the dimensional accuracy and appearance quality of the pipe can be guaranteed.
[0038] The second traction part 3 includes two traction shafts 33, tracks 32 and clamping plates 31. The outer walls of the two groups of traction shafts 33 are surrounded by tracks 32. The outer sides of the tracks 32 are equidistantly provided with clamping plates 31. The center of the traction shaft 33 on the left side of the second traction part 3 is connected with a second driving gear 34. The structure of the first traction part 2 is the same as that of the second traction part. The center of the traction shaft 33 on the left side of the first traction part 2 is connected with a first driving gear 21. The traction direction of the track 32 above the first traction part 2 is consistent with the traction direction of the track 32 below the second traction part 3. The clamping plates 31 on the track 32 of the first traction part 2 and the clamping plates 31 on the second traction part 3 both have a certain curvature for fitting the outer wall of the pipe.
[0039] The plastic pipe passes through the space between the first traction part 2 and the second traction part 3. The first traction part 2 is fixed, and the height of the second traction part 3 is adjusted by the adjustment component 4.
[0040] The adjustment assembly 4 includes a bracket 42 and a sliding column 45. Two groups of sliding columns 45 are symmetrically arranged at the bottom of the bracket 42. A first support plate 46 is fixedly arranged at the bottom of the two groups of sliding columns 45. The two ends of the first support plate 46 are connected to the two traction shafts 33 of the first traction part 2 through bearings. The first support plate 46 and the sliding column 45 are fixedly connected. The first traction part 2 and the first support plate 46 are fixedly connected.
[0041] A second support plate 44 is slidably nested on the top of the two groups of sliding columns 45, and two ends of the second support plate 44 are connected to the two traction shafts 33 of the second traction part through bearings respectively, and the second support plate 44 is fixedly connected to the second traction part 3, and the middle part of the second support plate 44 is connected to an adjusting stud 43 through a bearing, and the adjusting stud 43 threadedly penetrates the bracket 42 and is connected to a rotating disk 41, and the rotating disk 41 drives the adjusting stud 43 to rotate so that the height of the second support rod can be adjusted up and down; the adjusting stud 43 is driven to rotate and pass through the bracket 42 by rotating the rotating disk 41, and the second support plate 44 is driven to adjust the height on the sliding column 45 through the bearing at the bottom end of the adjusting stud 43, and the height adjustment of the second support plate 44 synchronously drives the second traction part 3 to adjust the height.
[0042] The driving assembly 5 includes a traction motor 56, the shaft head of the traction motor 56 is connected to a second transmission gear 53, the second transmission gear 53 is connected to the second driving gear 34 of the second traction part 3 via a second synchronous belt 54, the shaft tail of the traction motor 56 is connected to a first transmission gear 52, the first transmission gear 52 is connected to the first driving gear 21 of the first traction part 2 via a first synchronous belt 51, and a direction-changing component 55 for reversing the power direction is installed between the shaft head and the shaft tail of the traction motor 56;
[0043] The traction motor 56 is started to drive the first transmission gear 52 and the second transmission gear 53 to rotate. The first transmission gear 52 and the second transmission gear 53 rotate in opposite directions through the direction-changing component 55. The first transmission gear 52 drives the first driving gear 21 of the first traction part 2 to rotate through the first synchronous belt 51, and the second transmission gear 53 drives the second driving gear 34 of the second traction part 3 to rotate through the second synchronous belt 54.
[0044] The direction-changing component 55 includes a first bevel gear 551, a second bevel gear 552 and a direction-changing bevel gear 553. The first transmission gear 52 is connected to the first bevel gear 551. The first bevel gear 551 meshes with one side of the direction-changing bevel gear 553. The other side of the direction-changing bevel gear 553 meshes with the second bevel gear 552. The second bevel gear 552 is connected to the second transmission gear 53.
[0045] The traction motor 56 starts to rotate in the clockwise direction, and the traction motor 56 drives the second transmission gear 53 and the second bevel gear 552 to rotate in the clockwise direction. The second bevel gear 552 drives the first bevel gear 551 to rotate counterclockwise by engaging with the changing direction bevel gear 553, and then the first bevel gear 551 drives the first transmission gear 52 to rotate synchronously.
[0046] The traction motor 56 is mounted on the sliding limiter component 6;
[0047] The sliding limiting component 6 includes a first sliding plate 66, a second sliding plate 63 and a limiting shell 61, wherein the limiting shell 61 is located between the first sliding plate 66 and the second sliding plate 63, wherein the first sliding plate 66 and the second sliding plate 63 are provided with arcuate grooves 65 of the same size, and the limiting shell 61 slides along the arcuate grooves 65, wherein the front side of the first sliding plate 66 is provided with arcuate teeth 64, and the arcuate teeth 64 are meshed with a sliding gear 62, and the sliding of the limiting shell 61 is more stable through the meshing of the sliding gear 62 with the arcuate teeth 64, wherein the sliding gear 62 is connected to the limiting shell 61 through the arcuate groove 65 of the first sliding plate 66 through a connecting rod, and the connecting rod also passes through the arcuate groove 65 of the second sliding plate 63 and is fixedly connected to the traction motor 56 through a plate-like member, wherein the connecting rod of the sliding gear 62 passes through the interior of the limiting shell 61, and a damping bearing is installed inside the limiting shell 61, and the connecting rod is fixed to the inner shaft of the damping bearing;
[0048] While the height of the second traction part 3 is adjusted, the sliding limit component 6 drives the traction motor 56 to slide along the arc-shaped slide groove 65 to adapt to the height adjustment of the second traction part 3, with the first driving gear 21 of the first traction part 2 as the center point and the length of the first synchronous belt 51 as the radius;
[0049] The arc of the arc-shaped slide groove 65 takes the first driving gear 21 as the center point, and the first synchronous belt 51 between the first driving gear 21 and the first transmission gear 52 is always in a taut state. The adjustment component drives the second traction part 3 to move up and down, and the traction motor 56 moves synchronously along the arc-shaped slide groove 65 under the guidance of the sliding engagement component 67 to adapt to the height change of the second traction part 3;
[0050] The traction motor 56 slides along the arc-shaped slide groove 65 to adapt to the height adjustment of the second traction part 3. The position of the traction motor 56 is changed while the height of the second traction part 3 is adjusted, and the second synchronous belt 54 is always kept in a straight state.
[0051] The sliding limiting component 6 also includes a sliding engaging assembly 67 for limiting the bidirectional movement of the traction motor 56 along the arc-shaped slide rail.
[0052] The sliding engagement assembly 67 includes a limiting plate 671, on which two sets of limiting racks 675 are provided, one set of the limiting racks 675 having teeth inclined downward, and the other set of the limiting racks 675 having teeth inclined upward;
[0053] The limiting plate 671 is located between the first sliding plate 66 and the second sliding plate 63. Two groups of limiting racks 675 are arranged on the outer wall of the limiting plate 671. The two groups of limiting racks 675 face in opposite directions. The sliding engaging assembly 67 also includes two groups of rotating parts 672. The two groups of rotating parts 672 are located on one side of the limiting shell 61. A torsion spring 673 is fixed to the front end of any rotating part 672. One end of the torsion spring 673 is connected to a locking tooth 674. The locking tooth 674 is engaged with a group of limiting racks 675 to limit reverse sliding. The front and rear parts of the rod body of the rotating part 672 are connected by threads. The rotation of a single rotating part 672 causes the locking tooth 674 to disengage from the corresponding limiting rack 675 to release the reverse sliding restriction.
[0054] The teeth of a set of limiting racks 675 are tilted upward along the arc, the traction motor 56 slides upward along the arc-shaped slide groove 65, and the positioning teeth 674 of the sliding engagement assembly 67 adapted to the limiting rack 675 slide upward along the tilted teeth, the traction motor 56 slides downward along the arc-shaped slide groove 65, and the positioning teeth 674 of the sliding engagement assembly 67 adapted to the limiting rack 675 are engaged in the reverse surface of the tilted teeth to form a limit reverse sliding;
[0055] When the second traction part 3 needs to be raised in height, the limit rack 675 inclined downward with the tooth pattern is selected, and the matching rotating part 672 is rotated so that the locking tooth 674 is disengaged from the limit rack 675 inclined downward with the tooth pattern, thereby releasing the reverse sliding, so that the traction motor 56 moves upward along the arc-shaped slide groove 65 of the first sliding plate 66 and the second sliding plate 63, that is, the limit shell 61 drives the traction motor 56 to drive the arc-shaped slide groove 65 to move upward, and the sliding gear 62 at the front end of the limit shell 61 meshes with the arc-shaped tooth 64 and rotates upward, so that the sliding of the limit shell 61 is more stable;
[0056] The teeth of a set of limiting racks 675 are inclined downward along the arc, the traction motor 56 slides downward along the arc-shaped slide groove 65, and the positioning teeth 674 of the sliding engaging assembly 67 adapted to the limiting rack 675 slide downward along the teeth inclined downward, the traction motor 56 slides upward along the arc-shaped slide groove 65, and the positioning teeth 674 of the sliding engaging assembly 67 adapted to the limiting rack 675 are engaged in the reverse surface of the teeth inclined downward to form a limit reverse sliding, that is, the limiting shell 61 drives the traction motor 56 to drive the arc-shaped slide groove 65 to move downward, and the sliding gear 62 at the front end of the limiting shell 61 engages with the arc-shaped teeth 64 and rotates downward;
[0057] When the second traction part 3 needs to be lowered in height, the limiting rack 675 that is inclined upward with the tooth pattern is selected, and the rotating part 672 adapted thereto is rotated so that the locking tooth 674 disengages from the limiting rack 675 that is inclined upward with the tooth pattern, thereby releasing the reverse sliding, so that the traction motor 56 moves downward along the arc-shaped slide groove 65 of the first sliding plate 66 and the second sliding plate 63, and the two groups of rotating parts 672 are rotated to a predetermined angle, and the two locking teeth 674 are respectively engaged in the limiting rack 675 adapted thereto under the action of the torsion spring 673, so that both upward and downward sliding are restricted, so that the traction motor 56 is fixed.
[0058] Working principle: The height of the base 1 needs to be adapted to the height of the pipe outlet of the pipe forming equipment, and the driving component 5 drives the first traction part 2 and the second traction part 3 to clamp and move synchronously to form traction on the plastic pipe;
[0059] The height of the second traction part 3 is adaptively adjusted according to the diameter of the pipe. The adjusting stud 43 is driven to rotate and pass through the bracket 42 by rotating the rotating disk 41. The second support plate 44 is driven to adjust the height on the sliding column 45 by adjusting the bottom bearing of the stud 43. The height adjustment of the second support plate 44 synchronously drives the second traction part 3 to be adjusted in height, so that the plastic pipe passes between the first traction part 2 and the second traction part 3.
[0060] When adjusting the height, the first traction part 2 is fixed, the first support plate 46 and the sliding column 45 are fixedly connected, the first traction part 2 and the first support plate 46 are fixedly connected, and the second traction part 3 completes the height adjustment through the adjustment component 4. When the height of the second traction part 3 is adjusted, the sliding limit component 6 drives the traction motor 56 to slide along the arc-shaped slide groove 65 to adapt to the height adjustment of the second traction part 3 with the first driving gear 21 of the first traction part 2 as the center point and the length of the first synchronous belt 51 as the radius. After the height is adjusted, the traction motor 56 is fixed by the sliding clamping component 67;
[0061] Two sets of limiting racks 675 are provided on the limiting plate 671, one set of the limiting racks 675 has teeth inclined downward, and the other set of the limiting racks 675 has teeth inclined upward;
[0062] When the second traction part 3 needs to be raised in height, the limit rack 675 inclined downward with the tooth pattern is selected, and the matching rotating part 672 is rotated so that the locking tooth 674 is disengaged from the limit rack 675 inclined downward with the tooth pattern, thereby releasing the reverse sliding, so that the traction motor 56 moves upward along the arc-shaped slide groove 65 of the first sliding plate 66 and the second sliding plate 63, that is, the limit shell 61 drives the traction motor 56 to drive the arc-shaped slide groove 65 to move upward, and the sliding gear 62 at the front end of the limit shell 61 meshes with the arc-shaped tooth 64 and rotates upward, so that the sliding of the limit shell 61 is more stable;
[0063] When the second traction part 3 needs to be lowered, the limit rack 675 inclined upward with the tooth pattern is selected, and the matching rotating part 672 is rotated to make the locking tooth 674 disengage from the limit rack 675 inclined upward with the tooth pattern, thereby releasing the reverse sliding, so that the traction motor 56 moves downward along the arc-shaped slide groove 65 of the first sliding plate 66 and the second sliding plate 63, that is, the limit shell 61 drives the traction motor 56 to drive the arc-shaped slide groove 65 to move downward, and the sliding gear 62 at the front end of the limit shell 61 engages with the arc-shaped tooth 64 and rotates downward;
[0064] The two sets of rotating parts 672 are rotated to a predetermined angle, and the two locking teeth 674 are respectively locked into the matching limiting racks 675 under the action of the torsion spring 673, so that the upward and downward sliding are restricted, so that the traction motor 56 is fixed;
[0065] The traction motor 56 is started to rotate in the clockwise direction, and the traction motor 56 drives the second transmission gear 53 and the second bevel gear 552 to rotate in the clockwise direction. The second bevel gear 552 drives the first bevel gear 551 to rotate in the counterclockwise direction by meshing with the direction-changing bevel gear 553, and then the first bevel gear 551 drives the first transmission gear 52 to rotate synchronously. The traction motor 56 is started to drive the first transmission gear 52 and the second transmission gear 53 to rotate, and the direction-changing component 55 makes the first transmission gear 52 and the second transmission gear 53 rotate in opposite directions. On the contrary, the first transmission gear 52 drives the first driving gear 21 of the first traction part 2 to rotate through the first synchronous belt 51, and the second transmission gear 53 drives the second driving gear 34 of the second traction part 3 to rotate through the second synchronous belt 54, and then the first driving gear 21 and the second driving gear 34 respectively drive the traction shaft 33 of the first traction part 2 and the traction shaft 33 of the second traction part 3 to rotate, and then the traction motor 56 drives the clamping plate 31 on the track 32 of the first traction part 2 and the clamping plate 31 on the track 32 of the second traction part 3 to clamp and pull the pipe.
[0066] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A traction machine for producing building plastic pipes, comprising a base (1) and a driving assembly (5), wherein an adjustment assembly (4) is installed on the top of the base (1), wherein the adjustment assembly (4) is provided with a first traction part (2) and a second traction part (3) from bottom to top, and the plastic pipe passes through the space between the first traction part (2) and the second traction part (3), wherein the plastic pipe passes through the space between the first traction part (2) and the second traction part (3), and wherein the adjustment assembly (4) is provided with a first traction part (2) and a second traction part (3) from bottom to top, and wherein the plastic pipe passes through the space between the first traction part (2) and the second traction part (3), and wherein the adjustment assembly (4) is provided with a first traction part (2) and a ... The first traction part (2) is fixed, and the height of the second traction part (3) is adjusted by an adjustment component (4); The drive assembly (5) comprises a traction motor (56), the shaft head of the traction motor (56) is connected to a second transmission gear (53), the second transmission gear (53) is connected to a second driving gear (34) of a second traction part (3) via a second synchronous belt (54), the shaft tail of the traction motor (56) is connected to a first transmission gear (52), the first transmission gear (52) is connected to a first driving gear (21) of a first traction part (2) via a first synchronous belt (51), and a direction-changing component (55) for reversing the power direction is installed between the shaft head and the shaft tail of the traction motor (56); The traction motor (56) is mounted on the sliding limiting component (6); The sliding limiting component (6) comprises a first sliding plate (66), a second sliding plate (63) and a limiting shell (61); the limiting shell (61) is located between the first sliding plate (66) and the second sliding plate (63); the first sliding plate (66) and the second sliding plate (63) are provided with arc-shaped sliding grooves (65) of the same size; the front side of the first sliding plate (66) is provided with arc-shaped teeth (64); the arc-shaped teeth (64) are meshed with sliding gears (62); the sliding gears (62) are connected to the limiting shell (61) through a connecting rod passing through the arc-shaped sliding groove (65) of the first sliding plate (66); and the connecting rod also passes through the arc-shaped sliding groove (65) of the second sliding plate (63) and is fixedly connected to the traction motor (56) through a plate-shaped member; The sliding limiting component (6) also includes a sliding engaging assembly (67) for limiting the bidirectional movement of the traction motor (56) along the arc-shaped slide rail.
2. A traction machine for producing building plastic pipes according to claim 1, characterized in that: The second traction part (3) comprises two traction shafts (33), crawlers (32) and clamping plates (31); the crawlers (32) surround the outer walls of the two groups of traction shafts (33); the clamping plates (31) are equidistantly arranged on the outer sides of the crawlers (32); a second driving gear (34) is connected to the left side of the second traction part (3) and at the center of the traction shaft (33); the structure of the first traction part (2) is the same as that of the second traction part; a first driving gear (21) is connected to the left side of the first traction part (2) and at the center of the traction shaft (33).
3. A traction machine for producing building plastic pipes according to claim 2, characterized in that: The adjustment assembly (4) comprises a bracket (42) and a sliding column (45), two groups of sliding columns (45) are symmetrically arranged at the bottom of the bracket (42), a first support plate (46) is fixedly arranged at the bottom of the two groups of sliding columns (45), and two ends of the first support plate (46) are connected to two traction shafts (33) of the first traction part (2) respectively through bearings; A second support plate (44) is slidably nested on the top of the two groups of sliding columns (45); two ends of the second support plate (44) are connected to the two traction shafts (33) of the second traction part respectively via bearings; an adjusting stud (43) is connected to the middle of the second support plate (44) via a bearing; the adjusting stud (43) is threadedly passed through the bracket (42) and is connected to a rotating disk (41); the rotating disk (41) drives the adjusting stud (43) to rotate so that the height of the second support rod can be adjusted up and down.
4. A traction machine for producing building plastic pipes according to claim 3, characterized in that: The direction-changing component (55) comprises a first bevel gear (551), a second bevel gear (552) and a direction-changing bevel gear (553); the first transmission gear (52) is connected to the first bevel gear (551); the first bevel gear (551) is meshed with one side of the direction-changing bevel gear (553); the other side of the direction-changing bevel gear (553) is meshed with the second bevel gear (552); and the second bevel gear (552) is connected to the second transmission gear (53).
5. A traction machine for producing building plastic pipes according to claim 1, characterized in that: The arc of the arc-shaped slide groove (65) takes the first driving gear (21) as the center point, and the first synchronous belt between the first driving gear (21) and the first transmission gear (52) is always in a taut state. The adjustment component drives the second traction part (3) to move up and down, and at the same time, the traction motor (56) moves synchronously along the arc-shaped slide groove (65) under the guidance of the sliding engagement component (67) to adapt to the height change of the second traction part (3).
6. A traction machine for producing building plastic pipes according to claim 5, characterized in that: The sliding engaging assembly (67) comprises a limiting plate (671), wherein the limiting plate (671) is located between the first sliding plate (66) and the second sliding plate (63); the outer wall of the limiting plate (671) is provided with two groups of limiting racks (675), and the two groups of limiting racks (675) face in opposite directions; the sliding engaging assembly (67) further comprises two groups of rotating parts (672), wherein the two groups of rotating parts (672) are located on one side of the limiting shell (61); a torsion spring (673) is fixed at the front end of any rotating part (672), and one end of the torsion spring (673) is connected to a locking tooth (674), and the locking tooth (674) is locked with a group of limiting racks (675) to limit reverse sliding; the front and rear parts of the rod body of the rotating part (672) are connected by threads; the rotating part (672) rotates so that the locking tooth (674) is disengaged from the corresponding limiting rack (675) to release the reverse sliding restriction.
7. A traction machine for producing building plastic pipes according to claim 6, characterized in that: A group of teeth of the limit rack (675) are tilted upward along an arc, the traction motor (56) slides upward along the arc-shaped slide groove (65), and the sliding engagement assembly (67) and the locking teeth (674) adapted to the limit rack (675) slide upward along the teeth tilted upward, the traction motor (56) slides downward along the arc-shaped slide groove (65), and the sliding engagement assembly (67) and the locking teeth (674) adapted to the limit rack (675) are engaged with the reverse surface of the teeth tilted upward to form a limit reverse sliding.
8. A traction machine for producing building plastic pipes according to claim 6, characterized in that: A group of teeth of the limit rack (675) are inclined downward along an arc, the traction motor (56) slides downward along the arc-shaped slide groove (65), and the sliding engagement component (67) and the locking teeth (674) adapted to the limit rack (675) slide downward along the teeth inclined downward, the traction motor (56) slides upward along the arc-shaped slide groove (65), and the sliding engagement component (67) and the locking teeth (674) adapted to the limit rack (675) are engaged with the reverse surface of the teeth inclined downward to form a limit reverse sliding.