Manual plastic sleeve tensioning shaft

Abstract

The utility model discloses a manual plastic sleeve tensioning shaft, which relates to the technical field of paper roll inner core tube fixing and comprises a rotating shaft rotatably connected onto semi-automatic paper roll plane printing equipment, a bearing roller is coaxially connected onto the rotating shaft, one end of the bearing roller far away from the rotating shaft is coaxially connected with a rubber sleeve supporting column, and a rubber sleeve is sleeved on the outer side of the rubber sleeve supporting column. The end, away from the bearing roller, of the rubber sleeve supporting column is coaxially connected with a supporting column, a sliding supporting barrel is arranged on the supporting column in a sliding mode, a hinge seat is arranged at the end, away from the rubber sleeve supporting column, of the supporting column, and a quick loosening and tightening structure used for extruding the sliding supporting barrel is arranged on the hinge seat. The top block on the handle extrudes the sliding supporting barrel, the sliding supporting barrel and the bearing roller are matched to extrude the two ends of the rubber sleeve, so that the rubber sleeve is wrinkled, the paper roll inner core barrel is fixed, operation is simpler, and the paper roll loading and unloading efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper roll inner core cylinder fixing technical field, specifically a kind of manual plastic sleeve tensioning shaft. BACKGROUND

[0002] In semi-automatic paper roll plane printing equipment, the paper roll inner core cylinder sleeved on the rotating shaft of supporting paper roll is fixed to ensure that there is no slipping phenomenon between the rotating shaft and the paper roll inner core cylinder during winding and unwinding. Currently, the rotating workpiece (such as a bolt) compression method is generally used. This method requires rotating the workpiece when installing and removing the paper roll, which is troublesome and inefficient.

[0003] Therefore, the present application provides a manual plastic sleeve tensioning shaft to eliminate the drawbacks of existing devices. SUMMARY

[0004] The utility model aims at providing a kind of manual plastic sleeve tensioning shaft to solve the problem of low efficiency when installing and removing the paper roll in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of manual plastic sleeve tensioning shaft, including rotating connection in semi-automatic paper roll plane printing equipment on rotating shaft, the rotating shaft is coaxially connected with bearing roller, the end of bearing roller away from rotating shaft is coaxially connected with rubber sleeve support column, rubber sleeve support column outside is equipped with rubber sleeve, the end of rubber sleeve support column away from bearing roller is coaxially connected with support column, a sliding support cylinder is slidably arranged on the support column, a hinged seat is provided at the end of the support column away from the rubber sleeve support column, and a quick tension structure for extruding the sliding support cylinder is provided on the hinged seat.

[0007] Based on the above technical scheme, the utility model further provides the following optional technical scheme:

[0008] In an optional scheme, the rubber sleeve is made of rubber material, the rubber sleeve is tubular, the inner diameter of the rubber sleeve matches the outer diameter of the rubber sleeve support column, and the outer diameter of the rubber sleeve matches the outer diameter of the bearing roller.

[0009] In an optional scheme, the sliding support cylinder is a cylindrical metal block, the outer diameter of the sliding support cylinder matches the outer diameter of the rubber sleeve, and the sliding support cylinder is coaxially sleeved on the support column.

[0010] In an optional scheme, the quick tension structure includes a bolt penetratingly arranged on the hinged seat, two nuts in contact are threadedly connected on the bolt, a handle is rotatably arranged on the bolt, and a top block is connected to the handle.

[0011] In an optional scheme, the top block is provided with an arc surface.

[0012] In an alternative, a first through hole is provided on the handle away from the hinge seat.

[0013] In an alternative, two limiting blocks are connected to the handle, and the two limiting blocks are symmetrically distributed on both sides of the hinge seat and in contact with the hinge seat.

[0014] In an alternative, a second through hole is provided on the bolt, and an anti-dropping iron wire is arranged in the second through hole.

[0015] In an alternative, a fixing ring is arranged on one side of the support column close to the rubber sleeve support column, the fixing ring is fixedly connected to the support column, a reset spring is arranged in the sliding support cylinder, the reset spring is sleeved on the support column, one end of the reset spring is in contact with the fixing ring, and the other end of the reset spring is in contact with an end of the sliding support cylinder close to the hinge seat.

[0016] Compared with the prior art, the utility model has the beneficial effects as follows:

[0017] 1、 the utility model discloses a hinge handle on the hinge seat, when rotating the handle, the top block on the handle extrudes the sliding support cylinder, and the sliding support cylinder and the bearing roller cooperate to extrude the both ends of the rubber sleeve, so that the rubber sleeve is wrinkled, thereby increasing the outer diameter of the rubber sleeve, increasing the contact pressure between the rubber sleeve and the paper roll inner core cylinder, and increasing the contact pressure between the rubber sleeve and the rubber sleeve support column, thereby realizing the fixation of the paper roll inner core cylinder, and the operation is simpler, and the paper roll loading and unloading efficiency is higher.

[0018] 2、 the utility model discloses a second through hole is arranged on the bolt, and an anti-dropping iron wire is arranged in the second through hole, which is beneficial to save the time required when replacing the rubber sleeve. DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the utility model.

[0020] Figure 2 It is a schematic diagram of the utility model in the disassembled state.

[0021] Figure 3 It is a three-dimensional structure schematic diagram of the utility model. Figure 2 It is a partial enlarged view of the utility model in A.

[0022] Figure 4 It is a partial enlarged view of the utility model in B. Figure 2

[0023] Figure 5 It is a schematic diagram of the reset spring and the fixing ring in the disassembled state of the utility model.

[0024] ​Reference signs annotation: 101, rotating shaft; 102, bearing roller; 103, rubber sleeve support column; 104, rubber sleeve; 105, support column; 106, sliding support cylinder; 201, hinged seat; 202, bolt; 203, nut; 204, handle; 205, top block; 206, arc surface; 207, first perforation; 208, limiting block; 301, second perforation; 302, anti-dropping wire; 401, fixing ring; 402, reset spring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail with the help of the drawings and examples.

[0026] In one embodiment, as shown in Figures 1-5 A hand-operated rubber sleeve expanding shaft, which is rotatably connected to a semi-automatic paper roll planar printing device, comprises a rotating shaft 101, a bearing roller 102 coaxially connected to the rotating shaft 101, a rubber sleeve support column 103 coaxially connected to the end of the bearing roller 102 away from the rotating shaft 101, a rubber sleeve 104 sleeved outside the rubber sleeve support column 103, a support column 105 coaxially connected to the end of the rubber sleeve support column 103 away from the bearing roller 102, a sliding support cylinder 106 slidingly arranged on the support column 105, and a hinged seat 201 arranged at the end of the support column 105 away from the rubber sleeve support column 103, wherein the hinged seat 201 is provided with a quick tensioning structure for extruding the sliding support cylinder 106.

[0027] In this embodiment, the quick tensioning structure extrudes the sliding support cylinder 106, the sliding support cylinder 106 extrudes the rubber sleeve 104 sleeved outside the rubber sleeve support column 103, the rubber sleeve 104 is wrinkled, the outer diameter of the rubber sleeve 104 is increased, the contact pressure between the rubber sleeve 104 and the paper roll inner core cylinder is increased, and the contact pressure between the rubber sleeve 104 and the rubber sleeve support column 103 is increased, so that the paper roll inner core cylinder is fixed, the operation steps during installation and removal of the paper roll are simplified, and the efficiency of loading and unloading the paper roll is higher.

[0028] In one embodiment, as shown in Figure 2 The rubber sleeve 104 is made of rubber, has a tubular shape, the inner diameter of the rubber sleeve 104 matches the outer diameter of the rubber sleeve support column 103, the outer diameter of the rubber sleeve 104 matches the outer diameter of the bearing roller 102, the rubber sleeve 104 is wrinkled when the two ends of the rubber sleeve 104 are subjected to axial extrusion force, the outer diameter of the rubber sleeve 104 tends to increase, the contact pressure between the rubber sleeve 104 and the paper roll inner core cylinder is increased, and the contact pressure between the rubber sleeve 104 and the rubber sleeve support column 103 is increased, so that the paper roll inner core cylinder is fixed.

[0029] In one embodiment, as shown in Figure 2As shown, the sliding support cylinder 106 is a columnar metal block. The outer diameter of the sliding support cylinder 106 matches the outer diameter of the rubber sleeve 104. The sliding support cylinder 106 is coaxially sleeved on the support column 105. The sliding support cylinder 106 contacts one end of the rubber sleeve 104, playing a role in evenly conducting the extrusion force.

[0030] In one embodiment, as Figure 1 and Figure 2 shown, the quick tightening and loosening structure includes a bolt 202 penetrating through the hinge seat 201. Two contacting nuts 203 are threadedly connected to the bolt 202. A handle 204 is rotatably provided on the bolt 202. A top block 205 is connected to the handle 204. By rotating the handle 204, the top block 205 on the handle 204 presses the sliding support cylinder 106, and the sliding support cylinder 106 presses the rubber sleeve 104. The rubber sleeve 104 undergoes elastic deformation to fix the paper roll inner core cylinder, which is convenient to operate.

[0031] In one embodiment, as Figure 3 shown, the top block 205 is provided with an arc surface 206, which is beneficial for the operator to rotate the handle 204.

[0032] In one embodiment, as Figure 1 shown, one end of the handle 204 away from the hinge seat 201 is provided with a first through hole 207. For the situation where a small number of operators lack strength and cannot easily rotate the handle 204, a metal rod can be inserted into the first through hole 207, and then the handle 204 can be rotated through the metal rod, achieving the effect of saving effort.

[0033] In one embodiment, as Figure 1 and Figure 3 shown, two limiting blocks 208 are connected to the handle 204. The two limiting blocks 208 are symmetrically distributed on both sides of the hinge seat 201. The limiting blocks 208 contact the hinge seat 201. The two limiting blocks 208 play a positioning role for the handle 204, making the top block 205 on the handle 204 correspond to the sliding support cylinder 106, preventing the position deviation of the top block 205 from affecting the use.

[0034] ]>In one embodiment, as Figure 4 shown, a second through hole 301 is provided on the bolt 202. An anti - detachment iron wire 302 is penetrated through the second through hole 301. The anti - detachment iron wire 302 is in a "ji" shape and will not fall off from the second through hole 301 without external interference. The anti - detachment iron wire 302 is used to prevent the bolt 202 from falling off the hinge seat 201. When replacing the rubber sleeve 104, only need to bend the anti - detachment iron wire 302 and remove it from the second through hole 301. Compared with preventing the bolt 202 from falling off by two nuts 203, using the anti - detachment iron wire 302 to prevent the bolt 202 from falling off is beneficial to save the time required for replacing the rubber sleeve 104.

[0035] In one embodiment, as shown in Figure 5 In order to improve the resetting efficiency of the rubber sleeve 104, a fixed ring 401 is arranged on one side of the support column 105 close to the rubber sleeve support column 103, the fixed ring 401 is connected to the support column 105 by a screw, a resetting spring 402 is arranged in the sliding support cylinder 106, the resetting spring 402 is sleeved on the support column 105, one end of the resetting spring 402 is in contact with the fixed ring 401, and the other end is in contact with the end of the sliding support cylinder 106 close to the hinge seat 201. When the handle 204 extrudes the sliding support cylinder 106, the sliding support cylinder 106 extrudes the resetting spring 402 in cooperation with the fixed ring 401, and when the handle 204 releases the sliding support cylinder 106, the resetting spring 402 drives the sliding support cylinder 106 away from the rubber sleeve 104, and accelerates the rubber sleeve 104 to restore to the original shape.

[0036] The above embodiment discloses a manual plastic sleeve expansion shaft, wherein the handle 204 is rotated, the top block 205 on the handle 204 extrudes the sliding support cylinder 106, the sliding support cylinder 106 extrudes the rubber sleeve 104, the rubber sleeve 104 generates wrinkles when the two ends are subjected to axial extrusion force, and the outer diameter has a trend of increasing, thereby increasing the contact pressure between the rubber sleeve 104 and the paper roll inner core cylinder, and increasing the contact pressure between the rubber sleeve 104 and the rubber sleeve support column 103, so as to fix the paper roll inner core cylinder, the operation is convenient, the efficiency of loading and unloading the paper roll is higher, and after the handle 204 releases the sliding support cylinder 106, the resetting spring 402 drives the sliding support cylinder 106 away from the rubber sleeve 104, and accelerates the rubber sleeve 104 to restore to the original shape.

[0037] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A manual plastic sleeve expansion shaft comprising a rotating shaft (101) connected to a semi-automatic paper roll planar printing device, characterized in that, The rotating shaft (101) is coaxially connected with a bearing roller (102), one end of the bearing roller (102) away from the rotating shaft (101) is coaxially connected with a rubber sleeve supporting column (103), the outer side of the rubber sleeve supporting column (103) is sleeved with a rubber sleeve (104), one end of the rubber sleeve supporting column (103) away from the bearing roller (102) is coaxially connected with a supporting column (105), a sliding supporting cylinder (106) is slidably arranged on the supporting column (105), the end of the supporting column (105) away from the rubber sleeve supporting column (103) is provided with a hinged seat (201), the hinged seat (201) is provided with a quick tight structure for extruding the sliding supporting cylinder (106).

2. A manual plastic sleeve expansion shaft according to claim 1, wherein, The rubber sleeve (104) is made of rubber material, the rubber sleeve (104) is tubular, the inner diameter of the rubber sleeve (104) matches the outer diameter of the rubber sleeve supporting column (103), and the outer diameter of the rubber sleeve (104) matches the outer diameter of the bearing roller (102).

3. The manual plastic sleeve expansion shaft according to claim 2, wherein, The sliding supporting cylinder (106) is a columnar metal block, the outer diameter of the sliding supporting cylinder (106) matches the outer diameter of the rubber sleeve (104), and the sliding supporting cylinder (106) is coaxially sleeved on the supporting column (105).

4. The manual plastic sleeve expansion shaft according to claim 1, wherein, The quick tight structure comprises a bolt (202) penetratingly arranged on the hinged seat (201), two nuts (203) in contact with each other are threadedly connected on the bolt (202), a handle (204) is rotatably arranged on the bolt (202), and a top block (205) is connected to the handle (204).

5. A manual plastic sleeve expansion shaft according to claim 4, wherein, An arc surface (206) is arranged on the top block (205).

6. A manual plastic sleeve expansion shaft according to claim 4, wherein, A first perforation (207) is arranged on the end of the handle (204) away from the hinged seat (201).

7. A manual plastic sleeve expansion shaft according to claim 4, wherein, Two limiting blocks (208) are connected to the handle (204), the two limiting blocks (208) are symmetrically distributed on the two sides of the hinged seat (201), and the limiting blocks (208) are in contact with the hinged seat (201).

8. The manual plastic sleeve expansion shaft according to claim 4, wherein, A second perforation (301) is arranged on the bolt (202), and an anti-dropping iron wire (302) is penetratingly arranged in the second perforation (301).

9. The manual plastic sleeve expansion shaft according to claim 1, wherein, A fixing ring (401) is arranged on one side of the supporting column (105) close to the rubber sleeve supporting column (103), the fixing ring (401) is fixedly connected to the supporting column (105), a reset spring (402) is arranged in the sliding supporting cylinder (106), the reset spring (402) is sleeved on the supporting column (105), one end of the reset spring (402) is in contact with the fixing ring (401), and the other end of the reset spring (402) is in contact with the end of the sliding supporting cylinder (106) close to the hinged seat (201).

Images