Wrapping machine reel

Abstract

The present application discloses a wrapping machine reel, which includes a mounting shaft and a movable member. A mounting groove is provided on the mounting shaft, and the movable member is elastically arranged in the mounting groove. The mounting shaft and the movable member cooperate to mount a cloth roll, and through holes and limiting holes are provided on the cloth roll. By providing an elastically movable movable member, the elastic member is deformed, so that the radial dimension of the shaft structure can be changed, and then the cloth roll can be conveniently installed or removed, which simplifies the roll changing operation and improves the roll changing efficiency. By making at least part of the movable member enter the limiting hole, and using the mutual limiting effect of the movable member and the limiting hole, after the cloth roll is installed in place, it can neither move axially along the mounting shaft nor rotate relative to the mounting shaft, so as to facilitate the wrapping machine to accurately brake the mounting shaft and realize the winding of the cloth.

Description

Technical Field

[0001] This application relates to the technical field of tire steel ring forming tools, and in particular to a wrapping machine reel. Background Art

[0002] For radial tires, the bead is a very critical part. The internal pressure stress borne by the bead of radial tires and the additional stress under load are greater than those of the bead of bias tires. Therefore, the process requirements for radial tires are more stringent.

[0003] The hexagonal wire ring is a process commonly used in current heavy-duty radial tires. It is beneficial for program arrangement and the stability of the wire after forming is also good. During the manufacturing process, after single-wire winding and forming, one or two layers of nylon wrapping cloth need to be wound outside the wire ring. On the one hand, the nylon wrapping cloth can isolate moisture and humidity, and can also prevent the wire ring from being crushed or deformed. On the other hand, the nylon wrapping cloth can prevent the wire ring from directly contacting the carcass wires, generating frictional heat, and causing a decrease in tire strength.

[0004] When winding the wrapping cloth on the steel ring, generally, the nylon cloth roll is fixed on the reel of the wrapping machine through a flat key. Then, the reel of the wrapping machine rotates around the wire ring at the angles and gaps required by the process. Due to reasons such as wear and loosening of the flat key during operation, problems such as sliding and offset of the nylon cloth roll may occur, which easily leads to unstable winding gaps and tensions of the nylon wrapping cloth, affecting both the quality and production efficiency of the wire ring and bringing certain safety hazards. Summary of the Invention

[0005] The purpose of this application is to overcome the deficiencies in the prior art and provide a wrapping machine reel.

[0006] To achieve the above technical purposes, this application provides a wrapping machine reel, including: a mounting shaft, on which a mounting groove is provided; a movable member, which is arranged in the mounting groove through an elastic member; wherein, the mounting shaft and the movable member cooperate to install the cloth roll; the cloth roll is provided with a through hole and a limiting hole, and the limiting hole communicates with the through hole; when the elastic member is in a compressed state, the movable member can sink into the mounting groove so that the mounting shaft and the movable member can enter the through hole; when the elastic member resumes, at least part of the movable member can enter the limiting hole, thereby preventing the cloth roll from rotating relative to the mounting shaft.

[0007] Further, a stop block is provided on the mounting shaft or the movable member, and the stop block is used to limit the installation position of the cloth roll.

[0008] Further, the stop block includes a first stop block and a second stop block arranged at intervals along the axial direction of the mounting shaft; after the cloth roll is installed on the mounting shaft and the movable member, the elastic member resumes, and the cloth roll is located between the first stop block and the second stop block.

[0009] Further, the first end of the movable member is rotatably connected to the mounting shaft, and the second end of the movable member is connected to the mounting shaft through an elastic member.

[0010] Further, the first end of the movable member is rotatably disposed in the mounting groove through a rotary locking pin.

[0011] Further, a first stop block is provided on the second end of the movable member; after the cloth roll is loaded into the mounting shaft and the movable member, the elastic member is restored, and the first stop block rotates towards the cloth roll and abuts against the end face of the cloth roll.

[0012] Further, the thickness of the first stop block becomes smaller as it is farther away from the first end of the movable member.

[0013] Further, the length of the movable member is adjustable.

[0014] Further, the movable member includes: a first section with a first threaded hole provided thereon; a second section with a second threaded hole provided thereon; the cloth wrapping machine reel further includes a double-headed bolt with reverse threads at both ends; the first threaded hole and the second threaded hole are respectively threadedly connected to one end of the double-headed bolt.

[0015] Further, an external four corners are provided on the double-headed bolt, and turning the external four corners can adjust the connection depth between the double-headed bolt and the movable member.

[0016] The present application provides a cloth wrapping machine reel, including a mounting shaft and a movable member. A mounting groove is provided on the mounting shaft, and the movable member is elastically arranged in the mounting groove; the mounting shaft and the movable member cooperate to mount a cloth roll, and the cloth roll is provided with a through hole and a limiting hole; by providing an elastically movable movable member, causing the elastic member to deform, the radial dimension of the shaft structure can be changed, and thus the cloth roll can be conveniently installed or removed, which simplifies the roll changing operation and improves the roll changing efficiency; by allowing at least part of the movable member to enter the limiting hole, and using the mutual limiting effect between the movable member and the limiting hole, after the cloth roll is installed in place, it can neither move axially along the mounting shaft nor rotate relative to the mounting shaft, so as to facilitate the cloth wrapping machine to accurately brake the mounting shaft and realize the winding of the cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural cross-sectional view of the first cloth wrapping machine reel provided by the present application;

[0018] Figure 2 is a structural cross-sectional view of the second cloth wrapping machine reel provided by the present application;

[0019] Figure 3 is Figure 2 another direction structural cross-sectional view of the second cloth wrapping machine reel shown;

[0020] Figure 4 is a structural cross-sectional view of the third cloth wrapping machine reel provided by the present application;

[0021] Figure 5 This is a structural sectional view of the fourth wrapping machine reel provided for this application. Detailed implementation manners

[0022] To make the above objects, features, and advantages of this application more obvious and understandable, the following will describe the detailed implementation manners of this application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand this application. However, this application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of this application. Therefore, this application is not limited by the specific embodiments disclosed below.

[0023] In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0025] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0028] This application provides a wrapping machine reel, including: a mounting shaft 10, on which a mounting groove 11 is provided; a movable member 20, and the movable member 20 is arranged in the mounting groove 11 through an elastic member 1.

[0029] The mounting groove 11 is formed on the surface of the mounting shaft 10 and is recessed inward to have a certain accommodation space.

[0030] The elastic member 1 has the characteristics of deformation and restoration to its original state. The elastic member 1 can be prepared from a flexible material (such as rubber, plastic, etc.), or the elastic member 1 can be an elastic structural member such as a spring. One end of the elastic member 1 is connected to the movable member 20, and the other end is connected to the mounting shaft 10; so that the elastic member 1 is in a compressed state, the movable member 20 can sink into the mounting groove 11; when the elastic member 1 is restored, at least part of the movable member 20 can rise from the mounting groove 11.

[0031] It is easy to understand that when the movable member 20 sinks into the mounting groove 11, the radial dimension of the shaft structure formed by the mounting shaft 10 and the movable member 20 decreases; when at least part of the movable member 20 rises from the mounting groove 11, the radial dimension of the shaft structure formed by the mounting shaft 10 and the movable member 20 increases.

[0032] Among them, the mounting shaft 10 and the movable member 20 cooperate to mount the cloth roll 30; through holes 31 and limiting holes 32 are provided on the cloth roll 30, and the limiting holes 32 communicate with the through holes 31.

[0033] Specifically, the cloth roll 30 includes a sleeve and a cloth (such as a nylon covering cloth) wound around the sleeve to form a roll of material. The through hole 31 and the limiting hole 32 are formed in the sleeve. In use, first, the elastic member 1 is in a compressed state. After the radial dimension of the shaft structure formed by the mounting shaft 10 and the movable member 20 is reduced, the shaft structure can be conveniently inserted into the through hole 31. Subsequently, the elastic member 1 is restored, at least part of the movable member 20 rises and enters the limiting hole 32. The movable member 20 and the limiting hole 32 restrict each other, and can prevent the cloth roll 30 from rotating relative to the mounting shaft 10.

[0034] More specifically, the cloth roll 30 is relatively fixed on the mounting shaft 10 and the movable member 20. When the covering machine works, it can drive the mounting shaft 10 and the movable member 20 to rotate around the bead wire at an angle and with a gap required by the process, so that the shaft structure can release the cloth while winding the cloth onto the bead wire.

[0035] It should be added that at least one end of the through hole 31 penetrates the end of the cloth roll 30 to facilitate the insertion of the mounting shaft 10 and the movable member 20. To facilitate the insertion of the mounting shaft 10 and the movable member 20, the aperture of the through hole 31 is not less than the outer diameter of the shaft structure when the elastic member 1 is in a compressed state. At the same time, to ensure that the movable member 20 and the limiting hole 32 can restrict each other, the aperture of the through hole 31 is smaller than the outer diameter of the shaft structure when the elastic member 1 is in a released state.

[0036] In one embodiment, the elastic member 1 is restored, at least part of the movable member 20 rises and enters the limiting hole 32. When the movable member 20 contacts the limiting hole 32, the elastic member 1 is still in a compressed state. The elastic force of the elastic member 1 acts on the movable member 20, causing the movable member 20 to abut against the limiting hole 32. Using the frictional force between the shaft structure and the hole wall, the cloth roll 30 can be prevented from translating relative to the mounting shaft 10.

[0037] In another embodiment, referring to Figure 2 and Figure 3 , the through hole 31 is arranged to extend along the axial direction of the cloth roll 30, and both ends of the through hole 31 penetrate the cloth roll 30. When connecting the cloth roll 30 to the shaft structure, the mounting shaft 10 and the movable member 20 can extend into the through hole 31 from one end and pass through the other end of the through hole 31.

[0038] Continuing to refer to Figure 2 and Figure 3 , the movable member 20 has two convex blocks arranged at intervals along the axial direction. Inside the cloth roll 30, two limiting holes 32 are arranged corresponding to the two convex blocks. When the cloth roll 30 is installed in place, the convex blocks correspond to the limiting holes 32 one by one. When the elastic member 2 is restored, the convex blocks can extend into the corresponding limiting holes 32. Since the limiting holes 32 are only open at the lower end and are closed on the front, rear, left, and right sides, the limiting holes 32 can prevent the convex blocks from moving axially and circumferentially.

[0039] In this embodiment, even when the elastic member 1 is in the released state, as long as the bump is ensured to be in the limiting hole 32, the limiting hole 32 can prevent the cloth roll 30 from translating relative to the mounting shaft 10.

[0040] In summary, the cloth-wrapping machine reel provided in this application is provided with an elastically movable member 20. By deforming the elastic member 1, the radial dimension of the shaft structure can be changed, and then the cloth roll 30 can be conveniently installed or removed, which simplifies the roll-changing operation and improves the roll-changing efficiency.

[0041] Further, by making at least part of the movable member 20 enter the limiting hole 32, and using the mutual limiting effect of the movable member 20 and the limiting hole 32, after the cloth roll 30 is installed in place, it can neither move axially along the mounting shaft 10 nor rotate relative to the mounting shaft 10, so as to facilitate the cloth-wrapping machine to accurately brake the mounting shaft 10 and realize the winding of the cloth.

[0042] Optionally, a stop block 12 is provided on the mounting shaft 10 or the movable member 20, and the stop block 12 is used to limit the installation position of the cloth roll 30.

[0043] Specifically, the elastic member 1 is in a compressed state, and the shaft structure enters the through hole 31; as the shaft structure continuously penetrates into the through hole 31, the cloth roll 30 approaches the stop block 12, and when the cloth roll 30 abuts against the stop block 12, the cloth roll 30 is installed in place.

[0044] The stop block 12 can quickly prompt the assembler that the cloth roll 30 is installed in place and can prevent the cloth roll 30 from continuing to move, so as to facilitate the cloth roll 30 to stay at the accurate installation position.

[0045] Further, the stop block 12 can also be used to prevent the cloth roll 30 from translating relative to the mounting shaft 10.

[0046] Specifically, the stop block 12 includes a first stop block 12a and a second stop block 12b that are axially spaced along the mounting shaft 10; after the cloth roll 30 is installed on the mounting shaft 10 and the movable member 20, the elastic member 1 resumes, and the cloth roll 30 is located between the first stop block 12a and the second stop block 12b.

[0047] Ensure that after the elastic member 1 resumes, the first stop block 12a and the second stop block 12b cannot enter the through hole 31 and can respectively abut against an end face of the cloth roll 30, so that the first stop block 12a and the second stop block 12b can be used to prevent the cloth roll 30 from moving axially along the mounting shaft 10.

[0048] In one embodiment, refer to Figure 1, a first stop block 12a is provided at the left end of the movable member 20, and a second stop block 12b is provided at the right end. When installing the cloth roll 30, pressing the movable member 20 or the stop block 12 can compress the elastic member 1, causing the movable member 20 and the stop block 12 to sink into the installation groove 11; the installation shaft 10, the movable block 20, and the stop block 12 enter the through hole 31 together; after the cloth roll 30 is installed in place, the first stop block 12a and the second stop block 12b are outside the cloth roll 30; releasing the elastic member 1, the movable member 20 and the stop block 12 rise, the upper part of the movable member 20 enters the limit groove 32, and the first stop block 12a and the second stop block 12b are higher than the limit groove 32 and can cooperate to clamp both ends of the cloth roll 30.

[0049] In other embodiments, one of the first stop block 12a and the second stop block 12b is provided on the installation shaft 10, and the other is provided on the movable member 20.

[0050] This application does not limit the specific configuration and installation position of the stop block 12.

[0051] To improve the stability of the installation of the movable member 20, in one embodiment, the first end of the movable member 20 is rotatably connected to the installation shaft 10, and the second end of the movable member 20 is connected to the installation shaft 10 through the elastic member 1.

[0052] Specifically, reference can be made to Figure 4 , in the illustrated embodiment, the right end of the movable member 20 is rotatably provided in the installation groove 11, and the left end is connected to the elastic member 1; the lower end of the elastic member 1 is connected to the bottom of the installation groove 11, and the upper end is connected to the left end of the movable member 20. When the elastic member 1 is compressed, the movable member 20 can rotate counterclockwise and sink into the installation groove 11; when the elastic member 1 resumes, the movable member 20 can rotate clockwise, and the left end of the movable member 20 can be lifted upward to facilitate approaching the cloth roll 30.

[0053] In a specific embodiment, the first end of the movable member 20 is rotatably provided in the installation groove 11 through a rotary locking pin 4.

[0054] Specifically, reference can be made to Figure 4 , in the illustrated embodiment, the right end of the movable member 20 is provided with a through hole, and the through hole penetrates the movable member 20 in the direction perpendicular to the paper surface; defining the direction perpendicular to the paper surface in the figure as the width direction, at this time, one installation hole is provided on each of the two groove surfaces of the installation groove 11 in the width direction; making the installation hole opposite to the through hole, the rotary locking pin 4 can pass through the through hole and be connected to the installation hole.

[0055] More specifically, one of the through hole and the installation hole is rotatably connected to the rotary locking pin 4, and the other is fixedly connected to the rotary locking pin 4.

[0056] For example, both ends of the rotating locking pin 4 are rotatably arranged in a mounting hole, and the movable member 20 is fixedly connected to the rotating locking pin 4; thus, when the elastic member 1 deforms, the movable member 20 can drive the rotating locking pin 4 to rotate relative to the mounting hole.

[0057] At this time, the rotating locking pin 4 can be used as a rotating shaft to facilitate the stable rotation of the movable member 20. At the same time, by adding the function of the rotating locking pin 4 and providing a pin shaft and a pin hole, the rotation amplitude of the movable member 20 can also be limited to prevent the movable member 20 from rotating excessively, thereby improving the structural reliability of the rotating shaft of the entire covering machine.

[0058] In a specific embodiment, a first stopper 12a is provided on the second end of the movable member 20; after the cloth roll 30 is loaded into the mounting shaft 10 and the movable member 20, the elastic member 1 resumes, and the first stopper 12a rotates towards the cloth roll 30 and abuts against the end face of the cloth roll 30.

[0059] Specifically, reference can be made to Figure 4 , in the illustrated embodiment, a first stopper 12a is provided at the left end of the movable member 20, and the first stopper 12a protrudes relative to the upper surface of the movable member 20; both the through hole 31 and the limiting hole 32 penetrate the cloth roll 30 along the axial direction. When installing the cloth roll 30, the shaft structure needs to be inserted from the right end of the through hole 31; so that the elastic member 1 is in a compressed state to ensure that the first stopper 12a is not higher than the through hole 31 and the limiting hole 32, and the shaft structure can easily enter the through hole 31; after the first stopper 12a enters the through hole 31, the hole wall acts on the first stopper 12a, and the elastic member 1 can be kept in a compressed state without manual force; after the first stopper 12a passes through the left end of the through hole 31, the pressure of the hole wall is lost, and the elastic member 1 resumes, causing the movable member 20 to carry the first stopper 12a to rotate clockwise, and the first stopper 12a continuously rises and finally is higher than the through hole 31 and the limiting hole 32 and can abut against the left end face of the cloth roll 30; and the left end of the movable member 20 connected to the first stopper 12a can enter the limiting hole 32; at this time, the movable member 20 and the limiting hole 32 interact with each other to prevent the cloth roll 20 from rotating on the shaft structure, and the first stopper 12a can prevent the cloth roll 20 from moving leftward.

[0060] Furthermore, to better prevent the cloth roll 30 from moving axially along the mounting shaft 10, a second stopper 12b is provided on the side of the mounting shaft 10 or the movable member 20 away from the first stopper 12a.

[0061] For example, Figure 4In the illustrated embodiment, two second stoppers 12b are provided on the right side of the mounting shaft 10. When mounting the cloth roll 30, the cloth roll 30 is sleeved onto the shaft structure from left to right; when the right end face of the cloth roll 30 abuts against the second stopper 12b, the cloth roll 30 is in place, and the first stopper 12a passes through the left end of the through hole 31; the first stopper 12a can press the cloth roll 30 against the second stopper 12b. Thus, the first stopper 12a and the second stopper 12b cooperate to further fix the cloth roll 30.

[0062] Or, Figure 5 In the illustrated embodiment, both ends of the rotary locking pin 4 in the length direction protrude from the through hole 31; as the cloth roll 30 is continuously sleeved onto the shaft structure, it can finally abut against the protruding ends of the rotary locking pin 4; at this time, the protruding ends of the rotary locking pin 4 serve as the second stoppers 12b.

[0063] Optionally, the thickness of the first stopper 12a becomes smaller as it is farther from the first end of the movable member 20.

[0064] Specifically referring to Figure 4 , in the illustrated embodiment, the first stopper 12a is provided at the left end of the movable member 20. The first stopper 12a is generally triangular, and the upper surface of the first stopper 12a is an inclined surface. From left to right, the upper surface of the first stopper 12a slopes upward, so that the left end of the limiting block 12 has a small thickness and the right end has a large thickness, and the thicker right end protrudes from the upper surface of the movable member 20. The protruding part can abut against the left end face of the cloth roll 30.

[0065] By setting the gradually changing thickness of the limiting block 12, it is beneficial to the sleeving and removal of the cloth roll 30.

[0066] Optionally, the width of the limiting hole 32 is equal to the width of the mounting groove 11.

[0067] Among them, the width directions of the limiting hole 32 and the mounting groove 11 are perpendicular to the radial and axial directions of the mounting shaft 10. Making the width of the limiting hole 32 equal to the width of the mounting groove 11 enables the movable member 20 that can be inserted into the mounting groove 11 to also enter the limiting hole 32.

[0068] To improve the applicability of the cloth-wrapping machine reel provided in this application, optionally, the length of the mounting shaft 10 is adjustable.

[0069] Adjusting the length of the mounting shaft 10 is beneficial to adapting to cloth rolls 30 of different specifications. Especially when the stoppers 12 are provided on the mounting shaft 10, adjusting the length of the mounting shaft 10 can ensure that cloth rolls 30 of different specifications can accurately abut against the stoppers 12.

[0070] In one embodiment, the mounting shaft 10 includes at least two mounting segments, and the mounting segments can be assembled together by means of plugging, screwing, magnet adsorption, etc.; reducing the number of assembled mounting segments can reduce the length of the mounting shaft 10; increasing the number of assembled mounting segments can increase the length of the mounting shaft 10.

[0071] In another embodiment, the mounting shaft 10 adopts a telescopic rod configuration; the mounting shaft 10 includes a fixed shaft and at least one movable shaft, and the movable shaft is slidably disposed in the fixed shaft. By stretching the movable shaft, the length of the mounting shaft 10 can be increased, and by pressing the movable shaft, the length of the mounting shaft 10 can be reduced.

[0072] In yet another embodiment, the movable member 20 includes: a first section 21, on which a first screw hole is provided; a second section 22, on which a second screw hole is provided; the wrapper reel further includes a double-headed bolt 2, and the threads at both ends of the double-headed bolt 2 are reverse threads; the first screw hole and the second screw hole are respectively threadedly connected to one end of the double-headed bolt 2.

[0073] Specifically, reference can be made to Figure 4 , in the illustrated embodiment, a first screw hole is provided at the right end of the first section 21, a second screw hole is provided at the left end of the second section 22, the double-headed bolt 2 is located between the first section 21 and the second section 22, and the threaded rods at both ends of the double-headed bolt 2 are respectively threadedly connected to the first screw hole and the second screw hole.

[0074] In this embodiment, by rotating the double-headed bolt 2, the insertion depth of the threaded rod in the screw hole can be adjusted, thereby adjusting the distance between the first section 21 and the second section 22, and further adjusting the length of the movable member 20.

[0075] Optionally, an external quadrangle 3 is provided on the double-headed bolt 2, and turning the external quadrangle 3 can adjust the connection depth between the double-headed bolt 2 and the movable member 20.

[0076] Wherein, the external quadrangle 3 can be integrally formed with the double-headed bolt 2 and is located between the threaded rods at both ends. Or, an internal thread is provided on the inner circle of the external quadrangle 3. By means of the threaded rod at one end, rotating the external quadrangle 3, the external quadrangle 3 can be screwed into the middle of the double-headed bolt 2, and then the external quadrangle 3 is limited by the setting that the threaded rods at the other end have opposite thread directions to prevent the external quadrangle 3 from moving by rotating on the threaded rod at the other end. In this way, by turning the external quadrangle 3 towards the threaded rod at the other end, the double-headed bolt 2 can be rotated, thereby realizing the adjustment of the length of the movable member 20.

[0077] To facilitate the cooperation between the external quadrangle 3 and the movable member 20, in one embodiment, the width of the external quadrangle 3 is not greater than the width of the movable member 20. Thus, when the elastic member 1 is in a compressed state, the external quadrangle 3 can sink into the mounting groove 11 together with the movable member 20; if necessary, the external quadrangle 3 can also enter the limiting hole 32 together with the movable member 20.

[0078] Optionally, the width of the outer four corners 3 can also be the same as the width of the installation groove 11 and / or the limiting hole 32. In this way, the installation groove 11 or the limiting hole 32 can hold the outer four corners 3, thereby preventing the double-headed bolt 2 from rotating during normal use, and further ensuring the stable configuration of the movable member 20.

[0079] The above embodiments only represent several implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A wrapping machine reel, characterized in that, it includes: a mounting shaft (10) provided with a mounting groove (11) thereon; a movable member (20) disposed in the mounting groove (11) through an elastic member (1); wherein, the mounting shaft (10) and the movable member (20) cooperate to mount a cloth roll (30); the cloth roll (30) is provided with a through hole (31) and a limiting hole (32), and the limiting hole (32) communicates with the through hole (31); such that the elastic member (1) is in a compressed state, and the movable member (20) can sink into the mounting groove (11) so that the mounting shaft (10) and the movable member (20) can enter the through hole (31); such that the elastic member (1) resumes, and at least a part of the movable member (20) can enter the limiting hole (32), thereby preventing the cloth roll (30) from rotating relative to the mounting shaft (10); a first end of the movable member (20) is rotatably connected to the mounting shaft (10), and a second end of the movable member (20) is connected to the mounting shaft (10) through the elastic member (1); the first end of the movable member (20) is rotatably disposed in the mounting groove (11) through a rotary locking pin (4); a first stop block (12a) is provided on the second end of the movable member (20); after the cloth roll (30) is loaded onto the mounting shaft (10) and the movable member (20), the elastic member (1) resumes, and the first stop block (12a) rotates towards the cloth roll (30) and abuts against the end face of the cloth roll (30); the thickness of the first stop block (12a) becomes smaller the farther away from the first end of the movable member (20); the length of the movable member (20) is adjustable.

2. The wrapping machine reel according to claim 1, characterized in that, the movable member (20) includes: a first section (21) provided with a first threaded hole thereon; a second section (22) provided with a second threaded hole thereon; the wrapping machine reel further includes a double-headed bolt (2), and the threads at both ends of the double-headed bolt (2) are reverse threads; the first threaded hole and the second threaded hole are respectively threadedly connected to one end of the double-headed bolt (2).

3. The wrapping machine reel according to claim 2, characterized in that, the double-headed bolt (2) is provided with an external four corners (3), and turning the external four corners (3) can adjust the connection depth between the double-headed bolt (2) and the movable member (20).

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