Unreeling structure of honeycomb paper stretcher

Abstract

The utility model provides an unwinding structure of a honeycomb paper stretcher, and relates to the technical field of honeycomb paper stretchers. The two ends of the hollow roller shaft are inserted and clamped to the upper edge of the mounting frame, and the middle section of the hollow roller shaft is located in the cavity of the mounting frame; the tension adjusting assembly is assembled on the hollow roller shaft, and the tension adjusting assembly is electrically connected with an external controller; the honeycomb roll paper is sleeved on the hollow roll shaft; the outer side end of the tension adjusting assembly extends to abut against the inner ring face of the honeycomb paper roll. According to the device, the tension adjusting assembly is assembled on the hollow roller shaft, the main body of the tension adjusting assembly is located in the cavity of the hollow roller shaft, external space is not occupied, the outer side end of the tension adjusting assembly extends to directly abut against the inner ring face of the honeycomb roll paper, and the overall rotation resistance of the honeycomb roll paper is adjusted; therefore, the tension of the honeycomb paper roll during stretching is adjusted, and it is guaranteed that honeycomb paper of different models can be completely stretched during stretching.

Description

Technical Field

[0001] The utility model relates to the technical field of honeycomb paper stretching machines, in particular to a unwind structure of a honeycomb paper stretching machine. Background Art

[0002] After the honeycomb packaging paper is produced in a roll, when it is used, since it is in a roll form, by being mounted on a forming machine, the pulled honeycomb packaging paper can be used. However, because the roll is too easy to rotate, the honeycomb packaging paper pulled each time cannot be fully unfolded, and the honeycomb structure of the honeycomb packaging paper is not fully unfolded, which affects its shock absorption effect after packaging. Content of the Utility Model

[0003] The purpose of the utility model is to provide an unwind structure of a honeycomb paper stretching machine. The device assembles a tension adjusting component on a hollow roller shaft, and the main body of the tension adjusting component is located in the cavity of the hollow roller shaft, which will not occupy external space. By using the outer end of the tension adjusting component to extend and directly abut against the inner ring surface of the honeycomb paper roll, the rotational resistance of the whole honeycomb paper roll is adjusted, and then the tension during the stretching of the honeycomb paper roll is adjusted, so as to ensure that honeycomb papers of different models can be fully unfolded during stretching.

[0004] The utility model provides an unwind structure of a honeycomb paper stretching machine, including:

[0005] A mounting frame;

[0006] A hollow roller shaft, the two ends of which are inserted and clamped on the upper edge of the mounting frame, and the middle section of the hollow roller shaft is located in the cavity of the mounting frame;

[0007] A tension adjusting component, which is assembled on the hollow roller shaft, and the tension adjusting component is electrically connected to an external controller;

[0008] A honeycomb paper roll, which is sleeved on the hollow roller shaft;

[0009] The outer end of the tension adjusting component extends and abuts against the inner ring surface of the honeycomb paper roll, and the tension adjusting component adjusts the tension during the stretching of the honeycomb paper roll by controlling the extension amount of the outer end.

[0010] As a further optimized scheme, in order to better adjust the tension of the honeycomb paper roll and ensure that the honeycomb paper roll and the hollow roller shaft are coaxial when the tension is adjusted, two tension adjusting components on the hollow roller shaft are symmetrically distributed up and down. The tension adjusting component is composed of at least 5 tension adjusting structures, and the 5 tension adjusting structures are evenly and equidistantly distributed along the length direction on the middle part of the outer wall of the hollow roller shaft.

[0011] As a further optimization solution, in order to facilitate the adjustment of the extension amount of the arc-shaped contact plate, the extended arc-shaped contact plate is used to abut against the inner ring surface of the honeycomb paper roll to generate a unwinding resistance, and the adjustment of this unwinding resistance can change the tension when the honeycomb paper roll is stretched. The tension adjustment structure includes:

[0012] A strip-shaped power supply, which is transversely pasted and fixed in the inner ring surface of the hollow roller shaft;

[0013] An arc-shaped window, which is opened on the outer wall of the hollow roller shaft;

[0014] An arc-shaped contact plate, which is slidably inserted into the arc-shaped window;

[0015] An electric push rod, the two ends of which are respectively vertically pasted and fixed to the strip-shaped power supply and the arc-shaped contact plate, and the electric push rod is electrically connected to the strip-shaped power supply and an external controller.

[0016] As a further optimization solution, in order to provide elastic buffering when abutting against the inner ring surface of the honeycomb paper roll and avoid damaging the inner ring surface of the honeycomb paper roll, the arc-shaped contact plate includes:

[0017] An arc-shaped cavity plate, the outer end of which is provided with an installation window;

[0018] An arc-shaped mounting plate, which is slidably inserted into the installation window;

[0019] A spring is uniformly and vertically fixedly connected between the arc-shaped mounting plate and the inner cavity bottom surface of the arc-shaped cavity plate.

[0020] As a further optimization solution, in order to facilitate the honeycomb paper roll to be limited in the middle of the hollow roller shaft and not affect the rotation of the honeycomb paper roll, a scale groove is transversely opened on the outer wall of the hollow roller shaft, and honeycomb paper roll limiters are symmetrically sleeved on the left and right sides of the outer wall of the hollow roller shaft. The inner ends of the two honeycomb paper roll limiters are slidably attached to the same-side end surface of the honeycomb paper roll, and the left and right honeycomb paper roll limiters limit the honeycomb paper roll in the middle of the hollow roller shaft.

[0021] As a further optimization solution, in order to facilitate the adjustment of the limiting position of the honeycomb paper roll limiter, the honeycomb paper roll limiter includes:

[0022] A sleeve, which is slidably sleeved on the outer wall of the hollow roller shaft;

[0023] A ring body, which is coaxially fixedly assembled at the end of the sleeve close to the honeycomb paper roll, and the outer wall of the ring body is slidably attached to the honeycomb paper roll;

[0024] A limit bolt, which is screwed on the sleeve, and the end of the limit bolt abuts against the outer wall of the hollow roller shaft.

[0025] As a further optimization solution, in order to support the device, the mounting bracket includes:

[0026] Vertical plates, two of which are distributed in parallel left and right. Connecting rods are fixedly assembled at the lower ends of the opposite faces of the two vertical plates.

[0027] Both ends of the hollow roller shaft are inserted and clamped in the middle of the upper edges of the left and right vertical plates.

[0028] As a further optimization solution, in order to block and limit both ends of the hollow roller shaft inserted and clamped on the upper edges of the two side vertical plates, making the placement of the hollow roller shaft more stable and preventing it from having vertical displacement during unwinding, magnetic blocking and limiting structures are assembled in the middle of the upper edges of the left and right vertical plates. The upper ends of the magnetic blocking and limiting structures block above the same-side ends of the hollow roller shaft.

[0029] As a further optimization solution, in order to facilitate the control of whether to block and limit both ends of the hollow roller shaft, the magnetic blocking and limiting structure includes:

[0030] Iron blocks, two of which are distributed front and back. The two iron blocks are respectively embedded and assembled on the front and back sides of the middle of the upper edge of the vertical plate.

[0031] A strip-shaped plate that blocks above the two iron blocks and the same-side end of the hollow roller shaft.

[0032] Mounting holes are provided on the front and back sides of the upper surface of the strip-shaped plate. Electromagnets are fixedly pasted in the mounting holes. The lower ends of the electromagnets are adsorbed and fixed to the same-side iron blocks.

[0033] A block-shaped power supply is fixedly pasted on the strip-shaped plate. A power switch is provided on the block-shaped power supply. The electromagnets are connected in parallel and electrically connected to the block-shaped power supply.

[0034] As a further optimization solution, in order to perform clamping and limiting on both ends of the hollow roller shaft, rectangular slots are provided in the middle of the upper edges of the two vertical plates. Rectangular plugs are fixedly assembled in the middle of both ends of the hollow roller shaft. The rectangular plugs are inserted and clamped in the same-side rectangular slots.

[0035] The present utility model provides a unwind structure for a honeycomb paper stretching machine through improvement. Compared with the prior art, it has the following improvements and advantages:

[0036] Firstly, the device assembles the tension adjustment component on the hollow roller shaft. The main body of the tension adjustment component is located in the cavity of the hollow roller shaft and does not occupy external space. The outer ends of the tension adjustment component extend directly against the inner ring surface of the honeycomb paper roll, adjusting the overall rotational resistance of the honeycomb paper roll, thereby adjusting the tension during the stretching of the honeycomb paper roll and ensuring that honeycomb papers of different models can be fully unfolded during stretching.

[0037] Second, in order to shield and limit both ends of the hollow roller inserted and clamped on the upper edges of the two side vertical plates, making the placement of the hollow roller more stable and preventing vertical displacement during unwinding, magnetic shielding and limiting structures are assembled in the middle of the upper edges of the left and right vertical plates, and the upper ends of the magnetic shielding and limiting structures shield above the same-side ends of the hollow roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0039] Figure 1 is a schematic structural diagram of the present invention;

[0040] Figure 2 is a partial structural diagram of the present invention;

[0041] Figure 3 is a schematic structural diagram of the tension adjustment assembly of the present invention;

[0042] Figure 4 is a schematic structural diagram of the honeycomb paper roll limiting member of the present invention;

[0043] Figure 5 For the present invention Figure 1 is an enlarged structural diagram at A in the present invention.

[0044] Description of the reference numerals:

[0045] 1 - mounting frame, 11 - vertical plate, 12 - connecting rod, 2 - hollow roller, 3 - tension adjustment assembly, 31 - strip power supply, 32 - arc-shaped window, 33 - arc-shaped contact plate, 331 - arc-shaped cavity plate, 332 - mounting window, 333 - arc-shaped mounting plate, 334 - spring, 34 - electric push rod, 4 - honeycomb paper roll, 5 - scale groove, 6 - honeycomb paper roll limiting member, 61 - sleeve, 62 - limiting bolt, 63 - ring body, 7 - magnetic shielding and limiting structure, 71 - strip plate, 72 - block power supply, 73 - mounting hole, 74 - electromagnet, 75 - iron block, 8 - rectangular slot, 9 - rectangular plug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0047] In the description of the present utility model, 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", 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 the present utility model 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, and therefore cannot be understood as a limitation to the present utility model.

[0048] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0049] Please refer to Figures 1-5 , the present utility model provides a technical solution: a unwinding structure of a honeycomb paper stretching machine, including:

[0050] Mounting frame 1;

[0051] Hollow roller shaft 2, the two ends of which are inserted and clamped on the upper edge of the mounting frame 1, and the middle section of the hollow roller shaft 2 is located in the cavity of the mounting frame 1, giving enough space for the winding and unwinding of the honeycomb paper roll 4;

[0052] Tension adjusting assembly 3, which is assembled on the hollow roller shaft 2, and the tension adjusting assembly 3 is electrically connected to an external controller, and the extension amount of the tension adjusting assembly 3 can be conveniently controlled through the external controller;

[0053] The honeycomb paper roll 4 is sleeved on the hollow roller shaft 2. The honeycomb paper roll 4 can rotate on the hollow roller shaft 2 for winding and unwinding. The resistance of the honeycomb paper roll 4 during winding and unwinding is controlled by the change in the extension amount of the tension adjustment component 3.

[0054] The outer end of the tension adjustment component 3 extends and abuts against the inner ring surface of the honeycomb paper roll 4. The tension adjustment component 3 adjusts the tension when the honeycomb paper roll 4 is stretched by controlling the extension amount of the outer end.

[0055] In some embodiments, in order to better adjust the tension of the honeycomb paper roll and ensure that the honeycomb paper roll and the hollow roller shaft are coaxial when adjusting the tension, two tension adjustment components 3 on the hollow roller shaft 2 are symmetrically distributed up and down. The tension adjustment component 3 is composed of at least 5 tension adjustment structures. The 5 tension adjustment structures are evenly and equidistantly distributed along the length direction on the middle part of the outer wall of the hollow roller shaft 2. Multiple equidistantly distributed tension adjustment structures work synchronously. They jointly act and abut against different positions on the inner ring surface of the honeycomb paper roll 4, ensuring that the honeycomb paper roll 4 is subject to rotational resistance during the winding and unwinding process, improving the response speed of the honeycomb paper roll 4 after being subject to rotational resistance, reducing the wear degree of the outer side surface of a single arc-shaped abutting plate 33, and extending its service life.

[0056] In some embodiments, in order to facilitate the adjustment of the extension amount of the arc-shaped abutting plate 33 and use the extended arc-shaped abutting plate 33 to abut against the inner ring surface of the honeycomb paper roll 4 to generate a unwinding resistance, the adjustment of this unwinding resistance can change the tension when the honeycomb paper roll 4 is stretched. The tension adjustment structure includes:

[0057] The strip-shaped power supply 31 is transversely pasted and fixed in the inner ring surface of the hollow roller shaft 2. The strip-shaped power supply 31 is a long strip-shaped storage battery.

[0058] The arc-shaped window 32 is opened on the outer wall of the hollow roller shaft 2.

[0059] The arc-shaped abutting plate 33 is slidably inserted into the arc-shaped window 32.

[0060] The electric push rod 34 is vertically pasted and fixed to the strip-shaped power supply 31 and the arc-shaped abutting plate 33 at both ends. The electric push rod 34 is electrically connected to the strip-shaped power supply 31 and an external controller. The extension amount of the electric push rod 34 is controlled by the external controller, and the electric push rod 34 is used to push the arc-shaped abutting plate 33 to move and abut against the inner ring surface of the honeycomb paper roll 4.

[0061] In some embodiments, in order to provide elastic buffering when abutting against the inner ring surface of the honeycomb paper roll 4, the arc-shaped abutting plate 33 includes:

[0062] The arc-shaped cavity plate 331 has an installation window 332 opened at its outer end.

[0063] An arc-shaped mounting plate 333, which is slidably inserted into the mounting window 332;

[0064] A spring 334 is fixedly connected vertically and evenly between the inner cavity bottom surface of the arc-shaped mounting plate 333 and the arc-shaped cavity plate 331; in the natural state of the spring 334, the outer end portion of the arc-shaped mounting plate 333 extends out of the mounting window 332. When the outer side surface of the arc-shaped abutting plate 33 abuts against the inner ring surface of the honeycomb paper roll 4, the portion of the outer end of the arc-shaped mounting plate 333 extending out of the mounting window 332 is the first to be subjected to pressure. The arc-shaped mounting plate 333 squeezes the spring 334 to contract, and the spring 334 is used to elastically buffer the impact received by the contact. Subsequently, the arc-shaped mounting plate 333 retracts and the outer end of the arc-shaped cavity plate 331 abuts against the inner ring surface of the honeycomb paper roll 4 integrally.

[0065] In some embodiments, in order to conveniently limit the honeycomb paper roll 4 in the middle of the hollow roller shaft 2 and not affect the rotation of the honeycomb paper roll 4, a scale groove 5 is horizontally opened on the outer wall of the hollow roller shaft 2, and honeycomb paper roll limiters 6 are symmetrically sleeved on the left and right sides of the outer wall of the hollow roller shaft 2. The inner ends of the two honeycomb paper roll limiters 6 are slidably attached to the same-side end surface of the honeycomb paper roll 4, and the left and right honeycomb paper roll limiters 6 limit the honeycomb paper roll 4 in the middle of the hollow roller shaft 2; the honeycomb paper roll limiters 6 on both sides are adjusted in position with reference to the scale groove 5, which is convenient for limiting the honeycomb paper roll 4 in the middle of the hollow roller shaft 2.

[0066] In some embodiments, in order to conveniently adjust the limiting position of the honeycomb paper roll limiter 6, the honeycomb paper roll limiter 6 includes:

[0067] A sleeve 61, which is slidably sleeved on the outer wall of the hollow roller shaft 2;

[0068] A ring body 63, which is coaxially fixedly assembled at the end of the sleeve 61 close to the honeycomb paper roll 4, and the outer wall of the ring body 63 is slidably attached to the honeycomb paper roll 4;

[0069] A limit bolt 62, which is screwed on the sleeve 61, and the end of the limit bolt 62 abuts against the outer wall of the hollow roller shaft 2; during use, after loosening the limit bolt 62, the sleeve 61 can move on the outer wall of the hollow roller shaft 2, and after moving to the appropriate position, the limit bolt 62 is tightened.

[0070] In some embodiments, in order to support the device, the mounting frame 1 includes:

[0071] Two vertical plates 11 are distributed in parallel on the left and right. A connecting rod 12 is fixedly assembled at the lower ends of the opposite surfaces of the two vertical plates 11;

[0072] Both ends of the hollow roller shaft 2 are inserted and clamped in the middle of the upper edges of the left and right vertical plates 11.

[0073] In some embodiments, in order to block and limit both ends of the hollow roller shaft 2 inserted and clamped on the upper edges of the two side plates 11, so that the hollow roller shaft 2 is placed more stably and prevent it from moving up and down during unwinding, magnetic blocking and limiting structures 7 are assembled in the middle of the upper edges of the left and right side plates 11, and the upper ends of the magnetic blocking and limiting structures 7 block above the same-side ends of the hollow roller shaft 2.

[0074] In some embodiments, in order to facilitate the control of whether to block and limit both ends of the hollow roller shaft 2, the magnetic blocking and limiting structure 7 includes:

[0075] Two iron blocks 75 are distributed front and back. The two iron blocks 75 are respectively embedded and assembled on the front and back sides of the middle of the upper edge of the side plate 11.

[0076] A strip-shaped plate 71 blocks above the two iron blocks 75 and the same-side end of the hollow roller shaft 2.

[0077] Mounting holes 73 are formed on the front and back sides of the upper surface of the strip-shaped plate 71. Electromagnets 74 are fixedly pasted in the mounting holes 73, and the lower ends of the electromagnets 74 are fixedly adsorbed to the same-side iron blocks 75.

[0078] A block-shaped power supply 72 is fixedly pasted on the strip-shaped plate 71. A power switch is provided on the block-shaped power supply 72. The electromagnets 74 are connected in parallel and electrically connected to the block-shaped power supply 72. The block-shaped power supply 72 is a block-shaped storage battery. After the block-shaped power supply 72 is turned off, the electromagnets 74 are powered off, and the electromagnets 74 are no longer fixedly adsorbed to the same-side iron blocks 75. The electromagnets 74, the strip-shaped plate 71 and the block-shaped power supply 72 can be removed together, which is convenient for the disassembly of the hollow roller shaft 2 and facilitates the replacement of the honeycomb paper roll 4.

[0079] In some embodiments, in order to perform clamping and limiting on both ends of the hollow roller shaft 2 to prevent the hollow roller shaft 2 from rotating, rectangular slots 8 are formed in the middle of the upper edges of the two side plates 11, and rectangular plugs 9 are fixedly assembled in the middle of both ends of the hollow roller shaft 2. The rectangular plugs 9 are inserted and clamped into the same-side rectangular slots 8.

[0080] Working principle:

[0081] During use, after the block-shaped power supply 72 is turned off, the electromagnets 74 are powered off, and the electromagnets 74 are no longer fixedly adsorbed to the same-side iron blocks 75. The electromagnets 74, the strip-shaped plate 71 and the block-shaped power supply 72 can be removed together, the hollow roller shaft 2 is removed, and after replacing the honeycomb paper roll 4, the hollow roller shaft 2 and the magnetic blocking and limiting structure 7 are reset.

[0082] When the honeycomb paper roll paper limiting member 6 is in use, after loosening the limiting bolt 62, the sleeve 61 can move on the outer wall of the hollow roller shaft 2. After moving to a suitable position, the limiting bolt 62 can be tightened. The honeycomb paper roll paper limiting members 6 on both sides are adjusted in position with the scale groove 5 as a reference, which is convenient to limit the honeycomb paper roll paper 4 in the middle of the hollow roller shaft 2 and does not affect the rotation of the honeycomb paper roll paper 4;

[0083] The extension amount of the electric push rod 34 is controlled by the outer wall controller. The electric push rod 34 is used to push the arc-shaped contact plate 33 to move and abut against the inner ring surface of the honeycomb paper roll paper 4. The resistance of the honeycomb paper roll paper 4 during the winding and unwinding process is controlled by the change of the extension amount of the tension adjusting assembly 3, and then the tension during the stretching of the honeycomb paper roll paper 4 is adjusted.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A honeycomb paper stretching machine unwinding structure, characterized in that: include: Mounting frame (1); A hollow roller shaft (2), both ends of which are inserted and clamped on the upper edge of the mounting frame (1), and the middle section of the hollow roller shaft (2) is located in the cavity of the mounting frame (1); A tension adjustment component (3) is mounted on the hollow roller shaft (2), and the tension adjustment component (3) is electrically connected to an external controller; A honeycomb paper roll (4) is sleeved on the hollow roller (2); The outer end of the tension adjustment component (3) is stretched and pressed against the inner ring surface of the honeycomb paper roll (4), and the tension adjustment component (3) adjusts the tension of the honeycomb paper roll (4) when it is stretched by controlling the stretching amount of the outer end.

2. The unwinding structure of a honeycomb paper stretching machine according to claim 1, characterized in that: There are two tension adjustment components (3) on the hollow roller shaft (2) symmetrically distributed in the upper and lower parts, and the tension adjustment components (3) are composed of at least five tension adjustment structures, and the five tension adjustment structures are evenly and equidistantly distributed in the middle part of the outer wall of the hollow roller shaft (2) along the length direction.

3. The unwinding structure of the honeycomb paper stretching machine according to claim 2, characterized in that: The tension adjustment structure comprises: A strip-shaped power source (31) is transversely pasted and fixed to the inner annular surface of the hollow roller shaft (2); An arc-shaped window (32) is provided on the outer wall of the hollow roller shaft (2); An arc-shaped contact plate (33) is slidably inserted into the arc-shaped window (32); The electric push rod (34) has two ends which are respectively vertically attached and fixed to the strip-shaped power supply (31) and the arc-shaped contact plate (33). The electric push rod (34) is electrically connected to the strip-shaped power supply (31) and an external controller.

4. The unwinding structure of the honeycomb paper stretching machine according to claim 3, characterized in that: The arc-shaped contact plate (33) comprises: An arc-shaped cavity plate (331) is provided with a mounting window (332) at its outer end; An arc-shaped mounting plate (333) is slidably inserted into the mounting window (332); A spring (334) is evenly and vertically fixedly connected between the arc-shaped mounting plate (333) and the inner cavity bottom surface of the arc-shaped cavity plate (331).

5. The unwinding structure of a honeycomb paper stretching machine according to claim 1, characterized in that: The outer wall of the hollow roller shaft (2) is transversely provided with a graduated groove (5), and honeycomb paper roll limiting members (6) are symmetrically sleeved on the left and right sides of the outer wall of the hollow roller shaft (2), the inner ends of the two honeycomb paper roll limiting members (6) are slidably fitted with the same side end faces of the honeycomb paper roll (4), and the left and right honeycomb paper roll limiting members (6) limit the honeycomb paper roll (4) in the middle of the hollow roller shaft (2).

6. The unwinding structure of the honeycomb paper stretching machine according to claim 5, characterized in that: The honeycomb paper roll limiting member (6) comprises: A sleeve (61) is slidably sleeved on the outer wall of the hollow roller shaft (2); A ring body (63) is coaxially fixedly mounted on the end of the sleeve (61) close to the honeycomb paper roll (4), and the outer wall of the ring body (63) is slidably fitted with the honeycomb paper roll (4); A limiting bolt (62) is threadedly connected to the sleeve (61), and the end of the limiting bolt (62) abuts against the outer wall of the hollow roller shaft (2).

7. The unwinding structure of a honeycomb paper stretching machine according to claim 1, characterized in that: The mounting frame (1) comprises: Two vertical plates (11) are parallelly distributed on the left and right sides, and connecting rods (12) are fixedly mounted on the lower ends of the opposite surfaces of the two vertical plates (11); The two ends of the hollow roller shaft (2) are inserted and clamped in the middle of the upper edges of the left and right vertical plates (11).

8. The unwinding structure of the honeycomb paper stretching machine according to claim 7, characterized in that: The middle parts of the upper edges of the left and right upright plates (11) are both equipped with magnetic shielding and limiting structures (7), and the upper ends of the magnetic shielding and limiting structures (7) shield above the same side ends of the hollow roller shaft (2).

9. The unwinding structure of the honeycomb paper stretching machine according to claim 8, characterized in that: The magnetic shielding and limiting structure (7) comprises: Two iron blocks (75) are distributed in the front and rear, and the two iron blocks (75) are respectively embedded and assembled in the front and rear sides of the middle of the upper edge of the vertical plate (11); A strip plate (71) covering the ends of the two iron blocks (75) and the hollow roller shaft (2) on the same side; The upper surface of the strip plate (71) is provided with mounting holes (73) on both the front and rear sides, and an electromagnet (74) is fixedly attached to the mounting hole (73), and the lower end of the electromagnet (74) is fixedly adsorbed to the iron block (75) on the same side; The block power supply (72) is glued and fixed on the strip plate (71), the block power supply (72) is provided with a power switch, and the electromagnet (74) is electrically connected to the block power supply (72) after being connected in parallel.

10. The unwinding structure of a honeycomb paper stretching machine according to claim 7, characterized in that: A rectangular slot (8) is provided in the middle of the upper edges of the two vertical plates (11), and a rectangular plug-in block (9) is fixedly mounted in the middle of both ends of the hollow roller shaft (2), and the rectangular plug-in block (9) is inserted and clamped in the rectangular slot (8) on the same side.

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