Traction wheel control structure, traction machine and traction method

Abstract

The present application provides a traction wheel control structure, a traction machine and a traction method, which relate to the field of glass production technology. The traction wheel control structure includes: a mounting frame, a plurality of traction wheel groups and a longitudinal drive unit, wherein the plurality of traction wheel groups are connected to the mounting frame and arranged along a first direction, and the traction wheel groups include: an upper traction wheel and a lower traction wheel, wherein the upper traction wheel and the lower traction wheel are respectively movably connected to the mounting frame and arranged along the longitudinal direction, and a reserved spacing is provided between the upper traction wheel and the lower traction wheel; each upper traction wheel and each lower traction wheel are respectively connected to the longitudinal drive unit, and the longitudinal drive unit can adjust the size of each reserved spacing individually. The technical solution of the present application can adjust the size of the reserved spacing in each traction wheel group individually, and can solve the problem that the prior art can only adjust all the upper traction wheels or all the lower traction wheels as a whole, resulting in different reserved spacings in different traction wheel groups in actual production, which is easy to cause material jamming and affects the production progress.

Description

Technical Field

[0001] The present application relates to the technical field of glass production, and in particular to a traction wheel control structure, a traction machine and a traction method. Background Art

[0002] In the Dana method process of producing glass tubes, after the tube root is formed, it is necessary to manually hook the long tube out of the forming equipment and pull it along the runway into the glass tube forming traction machine. The glass tube forming traction machine is used to pull and transport the long tube, and then it is cut into a certain length by the cutting device. The qualified glass tubes are then sorted and transported to the automatic packaging machine through the round mouth or sealing, and packaged and put into storage.

[0003] The existing Danafa glass tube forming traction machines include wheel type, belt type and chain type. The wheel type traction machine uses three sets of traction wheels to transport the glass tubes. Each set of traction wheels includes an upper traction wheel and a lower traction wheel. The upper traction wheel and the lower traction wheel are arranged one above the other, and a gap is reserved in the middle for the glass tube to pass through. The upper traction wheel and the lower traction wheel are driven by a motor and a synchronous belt together, so that the six traction wheels rotate at the same speed, and then two sets of cylinders are used to drive the three upper traction wheels up and down or drive the three lower traction wheels up and down, respectively, and adjust the gap between the upper traction wheel and the lower traction wheel so that the upper traction wheel and the lower traction wheel can press the glass tube to be transported, and then the glass tube is pulled and transported by friction.

[0004] However, the existing air supply method can only drive the three upper traction wheels to move up and down together, or the three lower traction wheels to move up and down together. However, when the glass tube is actually towed and transported, the traction wheels will be worn due to long-term rotation, so that the outer diameters of the traction wheels are different, resulting in different actual spacings between the upper traction wheels and the lower traction wheels of different traction wheel groups. A larger spacing will lead to insufficient traction force on the glass tube, while a smaller spacing will easily crush the glass tube, causing the broken glass tube to be stuck in the traction machine, affecting the normal operation of the traction machine, causing material jamming, and preventing the material from entering the subsequent processing steps in time, affecting the production progress, and reducing the production efficiency. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a traction wheel control structure, a traction machine and a traction method, so as to solve the technical problem that in the prior art, only all upper traction wheels or all lower traction wheels can be adjusted as a whole, resulting in different reserved spacings between upper traction wheels and lower traction wheels in different traction wheel groups, so that the traction force of the traction wheel group on the glass tube is either too small to affect the transmission of the glass tube, or too large to crush the glass tube, resulting in material jamming, and affecting the production progress.

[0006] In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0007] A first aspect of the present application provides a traction wheel control structure, comprising: a mounting frame;

[0008] A plurality of traction wheel groups connected to the mounting frame and arranged along a first direction, the traction wheel groups comprising: an upper traction wheel and a lower traction wheel, the upper traction wheel and the lower traction wheel are respectively movably connected to the mounting frame and arranged along the longitudinal direction, and a reserved spacing is provided between the upper traction wheel and the lower traction wheel; and

[0009] A longitudinal drive unit, each upper traction wheel and each lower traction wheel are respectively connected to the longitudinal drive unit, and the longitudinal drive unit can individually adjust the size of each reserved spacing;

[0010] The first direction is a horizontal direction.

[0011] In some modified implementations of the present application, the reserved spacings of the traction wheel groups arranged along the first direction are gradually reduced.

[0012] In some modified implementations of the present application, the longitudinal drive unit includes: multiple electric push rods, the bodies of the multiple electric push rods are connected to the mounting frame, and each upper traction wheel and each lower traction wheel are respectively connected to the lifting end of an electric push rod.

[0013] In some modified embodiments of the present application, the longitudinal drive unit includes: a telescopic cylinder, the telescopic cylinder includes: a cylinder body, a plurality of pneumatic pipelines, a plurality of pressure regulating valves and a plurality of telescopic rods, the cylinder body is connected to the mounting frame, one end of the plurality of pneumatic pipelines are connected to the cylinder body, the other ends of the plurality of pneumatic pipelines are connected to the telescopic rods one by one, and the pressure regulating valves are arranged on the pneumatic pipelines one by one;

[0014] Wherein, each upper traction wheel and each lower traction wheel are respectively connected to the telescopic end of a telescopic rod.

[0015] In some modified embodiments of the present application, the telescopic cylinder is a thin film cylinder.

[0016] In some modified embodiments of the present application, the lifting frame extends in the horizontal direction and is slidably connected to the mounting frame, and can slide in the longitudinal direction, and each upper traction wheel is movably connected to the lifting frame, or each lower traction wheel is movably connected to the lifting frame; and

[0017] A lifting screw, the lifting end of which is connected to the lifting frame.

[0018] In some modified implementations of the present application, multiple drive motors are connected to the mounting frame, and the number of the drive motors is the same as the number of the traction wheel sets;

[0019] Each upper traction wheel is connected to a driving end of a driving motor, and a lower traction wheel corresponding to the upper traction wheel is connected to the upper traction wheel through a transmission structure;

[0020] Alternatively, each lower traction wheel is connected to a driving end of a driving motor, and an upper traction wheel corresponding to the lower traction wheel is connected to the lower traction wheel through a transmission structure.

[0021] In some modified embodiments of the present application, a buffer pad is detachably connected to the outer periphery of the upper traction wheel and the lower traction wheel.

[0022] A second aspect of the present application provides a traction machine, comprising: the aforementioned traction wheel control structure.

[0023] A third aspect of the present application provides a traction method, comprising: the pressure applied by a plurality of traction wheel groups to a to-be-to ...

[0024] Compared with the prior art, a traction wheel control structure provided in the first aspect of the present application connects the upper traction wheel and the lower traction wheel to the longitudinal drive part separately, so that the longitudinal drive part can adjust the longitudinal position of each upper traction wheel and the lower traction wheel separately, and then adjust the size of the reserved spacing of each traction wheel group, so as to make the traction wheel group more flexible, and adjust the reserved spacing according to the actual outer diameter of each upper traction wheel and the lower traction wheel, so as to avoid that the reserved spacing is too large, resulting in too small pressure on the glass tube, resulting in insufficient traction force and affecting the transmission of the glass tube, or the reserved spacing is too small, resulting in excessive pressure on the glass tube, causing the glass tube to break, which not only increases the production cost, but the broken glass tube is also easy to cause material jamming, affecting the production progress, and greatly reducing the production efficiency.

[0025] A second aspect of the present application provides a traction machine, which can effectively perform traction and transportation operations on glass tubes through a traction wheel control structure, thereby preventing the glass tubes from getting stuck during the traction process, affecting the normal operation of the traction process, and ensuring production efficiency.

[0026] A third aspect of the present application provides a traction method, in which the pressure of the upper traction wheel and the lower traction wheel on the glass tube is gradually increased along a first direction, and the pressure of the first pair of upper traction wheels and the lower traction wheels on the glass tube along the conveying direction of the glass tube is relatively small, so as to avoid the glass tube being crushed and causing the traction machine to jam, and the pressure of the subsequent two pairs of upper traction wheels and the lower traction wheels on the glass tube is gradually increased to ensure that the pressure of the traction glass tube is large enough, even if the glass tube is broken here, the glass tube can continue to move forward under the drive of the first pair of upper traction wheels and the lower traction wheels, so as to avoid the traction machine from jamming, affecting the production progress and reducing the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0028] Figure 1 It is a schematic diagram of the structure disclosed in the embodiment of the present application;

[0029] Figure 2 It is a structural schematic diagram from another perspective disclosed in the embodiment of the present application;

[0030] Figure 3 It is a schematic diagram of the gas path disclosed in the embodiment of the present application.

[0031] Explanation of the accompanying drawings: 1. Mounting frame; 2. Traction wheel assembly; 21. Upper traction wheel; 22. Lower traction wheel; 3. Longitudinal drive unit; 31. Telescopic cylinder; 311. Cylinder body; 312. Pneumatic pipeline; 313. Pressure regulating valve; 4. Reserved spacing; 5. Lifting frame; 6. Lifting screw; 7. Driving motor. DETAILED DESCRIPTION

[0032] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which this application belongs.

[0034] Embodiment 1

[0035] Reference Figure 1 To Attachment Figure 3 , Embodiment 1 of the present invention provides a traction wheel control structure, which includes: a mounting frame 1;

[0036] A plurality of traction wheel groups 2, which are connected to the mounting frame 1 and arranged along a first direction, the traction wheel group 2 comprising: an upper traction wheel 21 and a lower traction wheel 22, the upper traction wheel 21 and the lower traction wheel 22 are respectively movably connected to the mounting frame 1 and arranged along the longitudinal direction, and a reserved spacing 4 is provided between the upper traction wheel 21 and the lower traction wheel 22; and

[0037] A longitudinal drive unit 3, each upper traction wheel 21 and each lower traction wheel 22 are respectively connected to the longitudinal drive unit 3, and the longitudinal drive unit 3 can adjust the size of each reserved spacing 4 individually;

[0038] The first direction is a horizontal direction.

[0039] Specifically, the part to be pulled is a glass tube. In the production process of the glass tube, after the tube root is formed, the long tube needs to be hooked out of the forming equipment, and then the traction machine provides traction for the glass tube to transport the glass tube; the mounting frame 1 is a mounting frame on the traction machine, and the number of traction wheel groups 2 can be three, and each traction wheel group 2 includes: an upper traction wheel 21 and a lower traction wheel 22. The upper traction wheel 21 and the lower traction wheel 22 have the same structure and are both circular rotating wheels. The upper traction wheel 21 and the lower traction wheel 22 are respectively connected to the mounting frame 1, can rotate relative to the mounting frame 1, and can move up and down. The upper traction wheel 21 and the lower traction wheel 22 are arranged in the longitudinal direction, and there is a reserved spacing 4 in the middle, and the reserved spacing 4 can be The glass tube passes through, and the upper traction wheel 21 and the lower traction wheel 22 are respectively fitted with the upper and lower sides of the glass tube to provide traction for the glass tube, and to pull and transport the glass tube; the first direction is the arrangement direction of the traction wheel group 2, which is the horizontal direction and also the forward direction of the part to be towed; the longitudinal drive part 3 can be driven by a cylinder or an electric push rod, and the specific structure is described below. Each of the upper traction wheel 21 and the lower traction wheel 22 is connected to the longitudinal drive part 3, and can be driven by the longitudinal drive part 3 to move longitudinally along the mounting frame 1, and the longitudinal drive part 3 can adjust each of the upper traction wheel 21 and the lower traction wheel 22 separately to change the reserved spacing 4 of each traction wheel group 2.

[0040] Compared with the prior art, which can only adjust the longitudinal distance of all the upper traction wheels 21 or the lower traction wheels 22 as a whole, the technical solution in the present application can flexibly adjust the upper traction wheels 21 and the lower traction wheels 22 in each traction wheel group 2, and can change their positions according to their actual outer diameters, thereby ensuring that the reserved spacing 4 of each traction wheel group 2 can be consistent, thereby avoiding wear of the upper traction wheels 21 and the lower traction wheels 22 after long-term operation, resulting in inconsistent reserved spacing 4 of each traction wheel group 2, making the traction force on the glass tube larger or smaller, affecting the normal traction work, causing material jamming, and preventing the material from entering the subsequent processing equipment in time, thereby reducing production efficiency.

[0041] According to the above, an embodiment of the present invention proposes a traction wheel control structure, by connecting the upper traction wheel 21 and the lower traction wheel 22 to the longitudinal drive unit 3 separately, so that the longitudinal drive unit 3 can adjust the longitudinal position of each upper traction wheel 21 and the lower traction wheel 22 separately, and then adjust the size of the reserved spacing 4 of each traction wheel group 2, so that the traction wheel group 2 can be made more flexible, and the reserved spacing 4 can be adjusted according to the actual outer diameter of each upper traction wheel 21 and the lower traction wheel 22, so as to avoid the reserved spacing 4 being too large, resulting in too small pressure on the glass tube, resulting in insufficient traction force, affecting the transmission of the glass tube, or the reserved spacing 4 being too small, resulting in excessive pressure on the glass tube, causing the glass tube to break, which not only increases the production cost, but also the broken glass tube is easy to cause material jamming, affecting the production progress, and greatly reducing the production efficiency.

[0042] In some embodiments, refer to the attached Figure 1 and attached Figure 2 In a specific implementation, the reserved spacings 4 of the traction wheel groups 2 arranged along the first direction are reduced one by one.

[0043] Specifically, since the glass tubes also have errors in production, the outer diameters of each glass tube cannot be exactly the same. On the premise that the reserved spacing 4 of each traction wheel group 2 is flexibly adjustable, the reserved spacing 4 of multiple traction wheel groups 2 can be regularly adjusted to reduce the reserved spacing 4 of the traction wheel groups 2 arranged along the first direction one by one, thereby gradually increasing the pressure of the upper traction wheel 21 and the lower traction wheel 22 on the glass tube along the first direction. When the glass tube enters the traction machine along the first direction, it first contacts the first traction wheel group 2. The first traction wheel group 2, the reserved spacing 4 is larger, the pressure on the glass tube is smaller, and the glass tube can be prevented from being crushed. The reserved spacing 4 of the subsequent traction wheel groups 2 is reduced one by one, and the pressure on the glass tube is gradually increased, which can ensure that the glass tube has sufficient traction. When the outer diameter of the glass tube is large and is crushed by the traction wheel group 2, it will not occur at the traction wheel group 2 that is relatively forward, so that the glass tube can continue to move forward in the traction machine, avoiding the glass tube from being stuck after being crushed, affecting the normal feeding of the glass tube, and no longer needing manual cleaning, which can greatly save maintenance time and improve production efficiency.

[0044] In some embodiments, refer to the attached Figure 1 and attached Figure 2 In a specific implementation, the longitudinal driving unit 3 includes: a plurality of electric push rods, the bodies of the plurality of electric push rods are connected to the mounting frame 1, and each upper traction wheel 21 and each lower traction wheel 22 are respectively connected to the lifting end of an electric push rod.

[0045] Specifically, the longitudinal drive unit 3 may include a plurality of electric push rods, each of which has a lifting end that can be extended and retracted in the longitudinal direction. The number of the electric push rods is the sum of the number of upper traction wheels 21 and the number of lower traction wheels 22. The body of the electric push rod is connected to the mounting frame 1, and the lifting ends of the electric push rods are respectively connected to the corresponding upper traction wheels 21 or lower traction wheels 22. By adjusting the electric push rods, the longitudinal position of the upper traction wheels 21 or the lower traction wheels 22 can be adjusted, thereby achieving the technical effect of longitudinally adjusting each upper traction wheel 21 and the lower traction wheel 22 individually.

[0046] In some embodiments, refer to the attached Figure 1 To Attachment Figure 3 In a specific implementation, the longitudinal driving part 3 includes: a telescopic cylinder 31, the telescopic cylinder 31 includes: a cylinder body 311, a plurality of pneumatic pipelines 312, a plurality of pressure regulating valves 313 and a plurality of telescopic rods, the cylinder body 311 is connected to the mounting frame 1, one end of the plurality of pneumatic pipelines 312 are all connected to the cylinder body 311, the other ends of the plurality of pneumatic pipelines 312 are connected to the telescopic rods one by one, and the pressure regulating valves 313 are arranged one by one on the pneumatic pipelines 312;

[0047] Each upper traction wheel 21 and each lower traction wheel 22 are respectively connected to the telescopic end of a telescopic rod.

[0048] Specifically, the longitudinal drive unit 3 may further include: a telescopic cylinder 31, the telescopic cylinder 31 includes: a cylinder body 311, a pneumatic pipeline 312, a pressure regulating valve 313 and a telescopic rod. The cylinder body 311 is connected to the mounting frame 1, and can provide compressed gas for the telescopic rod. The number of telescopic rods is the sum of the number of upper traction wheels 21 and the number of lower traction wheels 22. The number of pneumatic pipelines 312 and pressure regulating valves 313 corresponds to the telescopic rods, respectively. The telescopic end of each telescopic rod is respectively connected to an upper traction wheel 21 or a lower traction wheel 22. The body of the telescopic rod is connected to the telescopic cylinder 31 through the pneumatic pipeline 312, and a pressure regulating valve 313 is provided in each pneumatic pipeline 312. The pressure regulating valve 313 can adjust the compressed air to change the telescopic length of the telescopic rod, and control the longitudinal position of the upper traction wheel 21 or the lower traction wheel 22 through the telescopic end of the telescopic rod, so as to achieve the technical effect of longitudinally adjusting each upper traction wheel 21 and the lower traction wheel 22 separately.

[0049] In some embodiments, refer to the attached Figure 1 To Attachment Figure 3 In a specific implementation, the telescopic cylinder 31 is a thin film cylinder.

[0050] Specifically, the film cylinder is a type of telescopic cylinder 31, which is a cylinder that uses compressed air to push the piston rod through a film to make reciprocating linear motion and converts air pressure energy into mechanical energy in the process; due to the effect of the film in the film cylinder, the upper traction wheel 21 or the lower traction wheel 22 has a buffering effect when moving up and down, and has a buffering and protective effect on the fluctuation of the outer diameter of the glass tube.

[0051] In some embodiments, refer to the attached Figure 1 and attached Figure 2 In a specific implementation, it further includes: a lifting frame 5, which extends in the horizontal direction and is slidably connected to the mounting frame 1 and can slide in the longitudinal direction, each upper traction wheel 21 is movably connected to the lifting frame 5, or each lower traction wheel 22 is movably connected to the lifting frame 5; and

[0052] The lifting screw rod 6 has a lifting end connected to the lifting frame 5 .

[0053] Specifically, the lifting frame 5 is a mounting bracket extending in the horizontal direction. All the upper traction wheels 21 or all the lower traction wheels 22 are movably connected to the lifting frame 5 and can move up and down along the lifting frame 5. The lifting frame 5 is then movably connected to the mounting frame 1, and the lifting frame 5 can slide up and down along the mounting frame 1. The lifting and lowering of the lifting frame 5 can be controlled by the lifting screw rod 6. The upper traction wheel 21 or the lower traction wheel 22 can be moved as a whole by the lifting frame 5. When the glass tube model is replaced, the reserved spacing 4 of the traction wheel group 2 is first roughly adjusted by the lifting frame 5. When the reserved spacing 4 is adapted to the glass tube, each upper traction wheel 21 and the lower traction wheel 22 are finely adjusted by the longitudinal driving part 3 to change the pressure of each traction wheel group 2 on the glass tube. This can make the adjustment process of the reserved spacing 4 of the present application faster, reduce the adjustment time when adapting to different glass tubes, and increase work efficiency.

[0054] In some embodiments, refer to the attached Figure 1 and attached Figure 2 In a specific implementation, multiple drive motors 7 are connected to the mounting frame 1, and the number of the drive motors 7 is the same as the number of the traction wheel sets 2;

[0055] Each upper traction wheel 21 is connected to a driving end of a driving motor 7, and a lower traction wheel 22 corresponding to the upper traction wheel 21 is connected to the upper traction wheel 21 through a transmission structure;

[0056] Alternatively, each lower traction wheel 22 is connected to a driving end of a driving motor 7, and the upper traction wheel 21 corresponding to the lower traction wheel 22 is connected to the lower traction wheel 22 through a transmission structure.

[0057] Specifically, only one motor drives all the upper traction wheels 21 and the lower traction wheels 22 to rotate. When the outer diameters of the upper traction wheels 21 or the lower traction wheels 22 are different, the linear speeds at which the glass tube is pulled are different, which affects the pulling operation of the glass tube. The driving motor 7 can be a servo motor, and the driving motor 7 is externally connected to a controller, and the speed can be changed under the control of the controller; each traction wheel group 2 is connected to a driving motor 7, and the upper traction wheel 21 in the traction wheel group 2 can be connected to the driving end of the driving motor 7 as a driving wheel, and the lower traction wheel 22 can be a driven wheel, which rotates together with the upper traction wheel 21 through a transmission structure, or the lower traction wheel 22 can be connected to the driving end of the driving motor 7 as a driving wheel, and the upper traction wheel 21 can be a driven wheel, which rotates together with the lower traction wheel 22 through a transmission structure; each traction wheel group 2 is driven by the driving motor 7 alone, and the speed of the upper traction wheel 21 or the lower traction wheel 22 in each traction wheel group 2 can be controlled by the driving motor 7 to ensure that each traction wheel group 2 pulls the glass tube.

[0058] In some embodiments, refer to the attached Figure 1 and attached Figure 2 In a specific implementation, a buffer pad is detachably connected to the outer periphery of the upper traction wheel 21 and the lower traction wheel 22.

[0059] Specifically, the buffer pad can be a rubber pad or a silicone film, which can provide a buffer between the upper traction wheel 21 and the lower traction wheel 22 and the glass tube to protect the glass tube. It also has a high friction coefficient and can better pull the glass tube.

[0060] Embodiment 2

[0061] Reference Figure 1 To Attachment Figure 3 , Embodiment 2 of the present application proposes a traction machine, which includes: the aforementioned traction wheel control structure.

[0062] Specifically, the traction wheel control structure can control the pressure of each traction wheel group 2 on the glass tube, and can also individually control the traction speed of each traction wheel group 2 on the glass tube, so that the glass tube can be effectively pulled and transported to avoid the glass tube from getting stuck during the traction process, affecting the normal operation of the traction process, and ensuring production efficiency.

[0063] Embodiment 3

[0064] Reference Figure 1 To Attachment Figure 3 Embodiment 3 of the present application proposes a traction method, which includes: the pressure applied by multiple traction wheel groups 2 to the to-be-to-be-to-be-towed parts is gradually increased along a first direction, wherein the first direction is the direction in which the traction machine tractions and transports the to-be-to-be-towed parts.

[0065] Specifically, it is necessary to increase the pressure of each traction wheel group 2 on the glass tube one by one along the first direction. The pressure of the first pair of upper traction wheels 21 and the lower traction wheels 22 on the glass tube along the conveying direction of the glass tube is relatively small to prevent the glass tube from being crushed and causing the traction machine to jam. The pressure of the subsequent two pairs of upper traction wheels 21 and the lower traction wheels 22 on the glass tube is gradually increased to ensure that the pressure of the traction glass tube is large enough. Even if the glass tube is broken here, the glass tube can continue to move forward under the drive of the first pair of upper traction wheels 21 and the lower traction wheels 22, thereby preventing the traction machine from jamming, affecting the production progress, and reducing the production efficiency.

[0066] It should be noted that in the description of this specification, the terms "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; the terms "connect", "install", "fixed", etc. should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0068] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A traction wheel control structure, used for traction and conveying a to-be-towed object in a first direction, characterized in that: include: Mounting frame (1); A plurality of traction wheel groups (2) connected to the mounting frame (1) and arranged along the first direction, the traction wheel groups (2) comprising: an upper traction wheel (21) and a lower traction wheel (22), the upper traction wheel (21) and the lower traction wheel (22) being movably connected to the mounting frame (1) and arranged along the longitudinal direction, a reserved spacing (4) being provided between the upper traction wheel (21) and the lower traction wheel (22), the reserved spacing (4) of the traction wheel groups (2) arranged along the first direction being gradually reduced; and A longitudinal drive unit (3), each of the upper traction wheels (21) and each of the lower traction wheels (22) being respectively connected to the longitudinal drive unit (3), and the longitudinal drive unit (3) being capable of individually adjusting the size of each of the reserved spacings (4); Wherein, the first direction is a horizontal direction.

2. The traction wheel control structure according to claim 1, characterized in that: The longitudinal drive unit (3) comprises: a plurality of electric push rods, the bodies of the plurality of electric push rods are all connected to the mounting frame (1), and each of the upper traction wheels (21) and each of the lower traction wheels (22) are respectively connected to the lifting end of one of the electric push rods.

3. The traction wheel control structure according to claim 1, characterized in that: Also includes: The longitudinal drive unit (3) comprises: a telescopic cylinder (31), the telescopic cylinder (31) comprising: a cylinder body (311), a plurality of pneumatic pipelines (312), a plurality of pressure regulating valves (313) and a plurality of telescopic rods, the cylinder body (311) being connected to the mounting frame (1), one end of each of the plurality of pneumatic pipelines (312) being in communication with the cylinder body (311), the other ends of each of the plurality of pneumatic pipelines (312) being in communication with the telescopic rods in a one-to-one correspondence, and the pressure regulating valves (313) being arranged in a one-to-one correspondence on the pneumatic pipelines (312); Wherein, each of the upper traction wheels (21) and each of the lower traction wheels (22) are respectively connected to a telescopic end of the telescopic rod.

4. The traction wheel control structure according to claim 3, characterized in that: The telescopic cylinder (31) is a thin film cylinder.

5. The traction wheel control structure according to claim 1, characterized in that: Also includes: A lifting frame (5), the lifting frame (5) extends in a horizontal direction and is slidably connected to the mounting frame (1) and is capable of sliding in a longitudinal direction, each of the upper traction wheels (21) is movably connected to the lifting frame (5), or each of the lower traction wheels (22) is movably connected to the lifting frame (5); and A lifting screw (6), the lifting end of which is connected to the lifting frame (5).

6. The traction wheel control structure according to claim 5, characterized in that: A plurality of drive motors (7), each of the plurality of drive motors (7) being connected to the mounting frame (1), and the number of the drive motors (7) being the same as the number of the traction wheel groups (2); Each of the upper traction wheels (21) is connected to a driving end of a driving motor (7), and the lower traction wheel (22) corresponding to the upper traction wheel (21) is connected to the upper traction wheel (21) via a transmission structure; Alternatively, each of the lower traction wheels (22) is connected to a driving end of a driving motor (7), and the upper traction wheel (21) corresponding to the lower traction wheel (22) is connected to the lower traction wheel (22) via a transmission structure.

7. The traction wheel control structure according to claim 1, characterized in that: The outer peripheries of the upper traction wheel (21) and the lower traction wheel (22) are detachably connected with a buffer pad.

8. A traction machine, characterized in that: include: A traction wheel control structure according to any one of claims 1 to 7.

9. A traction method, applied to the traction machine as claimed in claim 8, characterized in that: include: The pressure applied by the plurality of traction wheel groups (2) to the to-be-towed member increases one by one along a first direction; The first direction is the direction in which the traction machine tractions and transports the to-be-traction object.

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