Paper tube production equipment and production method thereof

Abstract

The present invention discloses a paper tube production device and a production method thereof, comprising a support tube and a paper tube base unit sleeved on the paper tube support tube, and a support body, the support body is provided with a receiving cavity through which both ends thereof are passed, the inner diameter of the receiving cavity is larger than the outer diameter of the paper tube base unit, a thickening channel is formed between the outer wall of the paper tube base unit and the inner wall of the receiving cavity, both ends of the support tube are provided with an opening and closing device for opening or closing both ends of the thickening channel, the support tube is also connected with a feeding device for feeding paper pulp into the thickening channel, the opening and closing device comprises two clamping plates arranged at each end of the support body, and the support tube is provided with a driving device capable of simultaneously driving the two clamping plates to move toward or away from the axis of the paper tube base unit. The present invention can facilitate the increase of the outer diameter of the paper tube, and is convenient to produce and highly efficient.

Description

Technical Field

[0001] The present invention belongs to the field of paper tubes, and more specifically relates to a paper tube production device and a production method thereof. Background Art

[0002] At present, in the production process of paper tubes, when paper tubes of different thicknesses need to be produced, multi-layer paper tube units are stacked together, and single-layer paper tube units also require preliminary processing, which leads to higher costs for producing paper tubes of different thicknesses and a more complicated production process. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a paper tube production device and a production method thereof which are convenient for changing the outer diameter of the paper tube.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a paper tube production equipment, comprising a support tube and a paper tube base unit sleeved on the paper tube support tube, and also comprising a support body, the support body is provided with a accommodating cavity passing through both ends of the support body, the inner diameter of the accommodating cavity is larger than the outer diameter of the paper tube base unit, a thickened channel is formed between the outer wall of the paper tube base unit and the inner wall of the accommodating cavity, both ends of the support tube are provided with opening and closing devices for opening or closing the two ends of the thickened channel, and the support tube is also connected with a feeding device for introducing pulp into the thickened channel.

[0005] By adopting the above technical solution, after the paper tube base unit passes through the accommodating cavity, the two ends of the thickening channel are closed by the opening and closing device, and then pulp is added into the thickening channel through the feeding device, thereby increasing the outer diameter of the paper tube base unit, and the thickness of the paper tube base unit is easily increased.

[0006] Preferably, the opening and closing device comprises two clamping plates arranged at each end of the support body, and the support tube is provided with a driving device capable of simultaneously driving the two clamping plates to move toward or away from the axis of the paper tube base unit.

[0007] By adopting the above technical solution, the two clamping plates are driven by the driving device to move toward the axis of the paper tube base unit, and the thickening channel is closed while the paper tube base unit is clamped.

[0008] Preferably, the driving device comprises a driving cylinder fixed on a supporting body, a driving rod is fixed on a piston rod of the driving cylinder, a rotating rod is hinged on each of the clamping plates, and one end of the rotating rod away from the clamping plate is hinged to the driving rod.

[0009] By adopting the above technical solution, the movement of the piston rod of a driving cylinder drives the driving rod to move, and the movement of the driving rod can simultaneously drive the four clamping plates to move, thereby simultaneously driving the four clamping plates to move toward or away from the axis of the paper tube base unit.

[0010] Preferably, both ends of the support body are provided with sealing ring grooves, sealing rings are inserted into the sealing ring grooves, and sealing springs are provided between the bottom surface of the sealing ring grooves and the sealing rings.

[0011] By adopting the above technical solution, due to the gap between the clamping plate and the end surface of the support body, the sealing spring applies force to the sealing ring, and the sealing ring abuts against the clamping plate, thereby increasing the sealing between the clamping plate and the end surface of the support body.

[0012] Preferably, a connecting groove connected to the sealing ring groove is provided on the outer wall of the support body, a connecting rod extending from the connecting groove is fixed on the outer wall of the sealing ring, an extrusion block is fixed on the clamping plate, the extrusion block is provided with a first inclined surface, and the connecting rod is provided with a second inclined surface corresponding to the first inclined surface.

[0013] By adopting the above technical solution, when the clamping plate moves toward the axis of the paper tube base unit, the first inclined surface on the extrusion block contacts the second inclined surface on the connecting rod, and then the clamping plate continues to move toward the axis of the paper tube base unit. The extrusion block drives the sealing ring to move toward the side of the clamping plate by extruding the connecting rod. Until the clamping plate closes the thickening channel, the sealing ring is already tightly attached to the side of the clamping plate facing the support body, thereby avoiding the sealing ring being always in contact with the clamping plate during the movement of the clamping plate, resulting in excessive wear of the sealing ring.

[0014] Preferably, the sealing ring comprises a hard layer and an elastic layer, and the elastic layer is arranged on one side close to the opening of the sealing ring groove.

[0015] By adopting the above technical solution, the hard layer can ensure that the sealing ring as a whole slides smoothly with the sealing ring groove, and the elastic layer can ensure the sealing performance between the clamping plate and the end surface of the support body.

[0016] Preferably, two opposite sides of the two clamping plates are provided with arc-shaped grooves, and the inner diameter of the arc-shaped groove is equal to the outer diameter of the paper tube base unit.

[0017] By adopting the above technical solution, the sealing between the clamping plate and the outer wall of the paper tube base unit can be increased.

[0018] Preferably, a heating device is provided on the support body.

[0019] By adopting the above technical solution, the heating device can heat the pulp to form the paper tube.

[0020] Preferably, a reducing sleeve is inserted into the accommodating cavity, and the reducing sleeve is detachably connected to the supporting body.

[0021] By adopting the above technical solution, the outer diameter of the paper tube can be changed by replacing sleeves with different inner diameters.

[0022] A paper tube production method comprises the following production steps: S1, passing a paper tube base unit through a containing cavity;

[0023] S2, the telescopic cylinder drives the clamping plate to clamp the paper tube base unit, and the clamping plate clamps the paper tube base unit and drives the sealing ring to abut against the clamping plate through the extrusion block;

[0024] S3, the feeding device feeds pulp into the thickening channel;

[0025] S4. The pulp is connected with the paper tube base unit in the thickening channel, and the paper tube is formed.

[0026] In summary, the beneficial effects of the present invention are as follows: 1. After the paper tube base unit passes through the accommodating cavity, the two ends of the thickening channel are closed by the opening and closing device, and then the pulp is added into the thickening channel by the feeding device, thereby increasing the outer diameter of the paper tube base unit, and the thickness of the paper tube base unit is increased conveniently;

[0027] 2. The movement of the piston rod of a driving cylinder can simultaneously drive the four clamping plates to move toward or away from the axis of the paper tube base unit;

[0028] 3. When the clamping plate closes the thickened channel, the extrusion block drives the sealing ring to abut against the clamping plate through the connecting rod, thereby increasing the sealing between the clamping plate and the end face of the support body, while avoiding the clamping plate from always contacting the sealing ring during movement, reducing the wear of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the paper tube production equipment of the present invention;

[0030] Figure 2 for Figure 1 A partial enlarged view of point I in the middle;

[0031] Figure 3 for Figure 1 The top view of

[0032] Figure 4 for Figure 3 Cross-sectional view at AA in the middle;

[0033] Figure 5 for Figure 4 A partial enlarged view of position II in the middle;

[0034] Figure 6 This is an exploded view of one end of the support body;

[0035] Figure 7 Schematic diagram of the structure of the clamping plate.

[0036] 1. Driving cylinder; 2. Driving rod; 3. Rotating rod; 4. Support tube; 5. Paper tube base unit; 6. Clamping plate; 7. Support body; 8. Extrusion block; 9. First inclined surface; 10. Second inclined surface; 11. Connecting rod; 12. Connecting groove; 13. Heating device; 14. Elastic layer; 15. Hard layer; 16. Sealing ring; 17. Sealing ring groove; 18. Sealing spring; 19. Reducing sleeve; 20. Thickened channel; 21. Arc groove; 22. Accommodating cavity; 23. Bottom plate; 24. Support rod; 25. Positioning support rod; 26. Positioning plate; 27. Positioning arc surface; 28. Sliding rod; 29. ​​Fixed sliding rod; 30. Sliding groove; 31. Arc sealing pad; 32. Sealing screw; 33. Positioning screw; 34. Feeding device; 35. Feeding tube. DETAILED DESCRIPTION

[0037] Reference Figures 1 to 7 The following is a further description of an embodiment of a paper tube production device and a production method thereof according to the present invention.

[0038] A paper tube production device, comprising a support tube 4 and a paper tube base unit 5 sleeved on the paper tube support tube 4, wherein the support tube 4 is used to support the paper tube base unit 5 to prevent the paper tube base unit 5 from being deformed by pressure, and further comprising a support body 7, wherein the support body 7 is horizontally supported above the bottom plate 23 by a support rod 24 on the bottom plate 23, and a cylindrical accommodating cavity 22 passing through the two ends of the support body 7 is provided on the support body 7, and positioning plates 26 are also provided at both ends of the support body 7, and the positioning plates 26 are fixed above the bottom plate 23 by positioning support rods 25, and a semicircular positioning arc surface 27 coaxial with the accommodating cavity 22 is provided on the positioning plate 26, and the inner part of the positioning arc surface 27 is provided with a positioning arc surface 27. The diameter of the support tube 4 is equal to the outer diameter of the paper tube base unit 5, the positioning plate 26 plays a role in positioning and supporting the paper tube base unit 5, the inner diameter of the accommodating cavity 22 is larger than the outer diameter of the paper tube base unit 5, and a thickening channel 20 is formed between the outer wall of the paper tube base unit 5 and the inner wall of the accommodating cavity 22. Both ends of the support tube 4 are provided with an opening and closing device for opening or closing the two ends of the thickening channel 20. The support tube 4 is also connected to a feeding device 34 for introducing pulp into the thickening channel 20. When the opening and closing device closes the two ends of the thickening channel 20, the feeding device 34 adds pulp into the thickening channel 20, and the pulp is formed in the thickening channel 20, thereby increasing the thickness of the paper tube.

[0039] like Figure 1 As shown, the opening and closing device includes two clamping plates 6 arranged at each end of the support body 7, and the two clamping plates 6 are respectively arranged on both sides of the paper tube base unit 5. A sliding rod 28 is fixed on the side of the clamping plate 6 facing away from the paper tube base unit 5. The sliding rod 28 is provided with a sliding groove 30. A fixed sliding rod 29 fixed to the outer wall of the support body 7 is inserted into the sliding groove 30. The sliding rod 28 can slide relative to the fixed sliding rod 29, so that the clamping plate 6 can move toward or away from the axial side of the paper tube base unit 5.

[0040] Continue watching Figure 1 A driving device is provided on the support tube 4, which can simultaneously drive the two clamping plates 6 to move toward or away from the axis of the paper tube base unit 5. The driving device includes a driving cylinder 1 fixed on the support body 7, and a driving rod 2 is fixed on the piston rod of the driving cylinder 1. The clamping plates 6 are hinged with a rotating rod 3, and the end of the rotating rod 3 away from the clamping plate 6 is hinged to the driving rod 2. The movement of the piston rod of the driving cylinder 1 can drive the driving rod 2 away from or close to the support body 7. When the driving rod 2 approaches the support body 7, the driving rod 2 simultaneously drives all the clamping plates 6 to move toward the side away from the axis of the paper tube base unit 5 through the rotating rod 3, thereby opening both ends of the thickening channel 20 at the same time; when the driving rod 2 is away from the support body 7, the driving rod 2 drives all the clamping plates 6 to move toward the axis of the paper tube base unit 5 through the rotating rod 3, and closes the thickening channel 20 while clamping the paper tube base unit 5.

[0041] like Figure 2 and Figure 6 As shown, in order to increase the sealing performance between the clamping plate 6 and the end surface of the support body 7, both ends of the support body 7 are provided with sealing ring grooves 17, and a sealing ring 16 is inserted in the sealing ring groove 17. A sealing spring 18 is provided between the bottom surface of the sealing ring groove 17 and the sealing ring 16. Four sealing springs 18 are provided, and the four sealing springs 18 are evenly distributed around the axis circumference of the accommodating cavity 22. The two ends of the sealing spring 18 are respectively fixed to the bottom surface of the sealing ring groove 17 and the sealing ring 16. A connecting groove 12 connected to the sealing ring groove 17 is provided on the outer wall of the support body 7. A connecting rod 11 extending from the connecting groove 12 is fixed on the outer wall of the sealing ring 16. An extrusion block 8 is fixed on the clamping plate 6. The extrusion block 8 is provided with a first inclined surface 9, and a second inclined surface 10 corresponding to the first inclined surface 9 is provided on the connecting rod 11. When the clamping plate 6 is about to close the thickening channel 20, the first inclined surface 9 on the extrusion block 8 is in inclined contact with the second inclined surface 10 on the connecting rod 11, and the clamping plate 6 continues to move toward the axis side of the paper tube base unit 5. The extrusion block 8 squeezes the first inclined surface 9 of the connecting rod 11 through the first inclined surface 9, thereby driving the sealing ring 16 to move toward the side of the clamping plate 6 toward the support body 7. When the clamping plate 6 completely closes the thickening channel 20, the sealing ring 16 is tightly abutted against the clamping plate 6, thereby increasing the sealing between the end faces of the clamping plate 6 and the support body 7 to prevent pulp from flowing out of the gap.

[0042] like Figure 6 As shown, the sealing ring 16 includes a hard layer 15 and an elastic layer 14. The elastic layer 14 is arranged on one side close to the opening of the sealing ring groove 17. The material of the hard layer 15 is set to stainless steel, and the material of the elastic layer 14 is set to rubber.

[0043] like Figure 6 and Figure 7As shown, two opposite sides of the two clamping plates 6 are provided with arc-shaped grooves 21, the inner diameter of the arc-shaped groove 21 is equal to the outer diameter of the paper tube base unit 5, and a clamping groove is provided on the inner wall of the arc-shaped groove 21, in which an arc-shaped sealing gasket 31 is fixed, and part of the arc-shaped sealing gasket 31 protrudes from the inner wall of the arc-shaped groove 21. The arc-shaped sealing gasket 31 can increase the sealing between the clamping plate 6 and the paper tube base unit 5 when the clamping plate 6 clamps the paper tube base unit 5.

[0044] like Figure 4 As shown, a heating device 13 is provided on the support body 7, and the heating device 13 can be set as a plurality of PTC heating plates, which are fixed on the outer wall of the support body 7. The pulp in the thickening channel 20 is heated by the heating device 13, so that the pulp in the thickening channel 20 and the paper tube base unit 5 are fused, and the paper tube is basically formed. In addition, a vent hole connected to the thickening channel 20 is provided on the side wall of the support body 7, and a sealing screw 32 is connected to the inner thread of the vent hole. The vent hole is opened or closed by disassembling the sealing screw 32. After the paper tube is basically formed, it is taken out from the accommodating cavity 22, and then it can be placed in a drying room for drying. The dried paper tube can be cut by itself according to the length requirement.

[0045] like Figure 4 As shown, a reducing sleeve 19 is inserted into the accommodating cavity 22, and the reducing sleeve 19 is detachably connected to the support body 7. At this time, a thickened channel 20 is formed between the inner wall of the reducing sleeve 19 and the outer wall of the paper tube base unit 5. A positioning hole is provided on the outer wall of the reducing sleeve 19, and a positioning screw 33 is passed through the side wall of the support body 7. The positioning screw 33 is threadedly connected to the side wall of the support body 7. The positioning screw 33 passes through the side wall of the support body 7 and is inserted into the positioning hole, thereby fixing the reducing sleeve 19 to the support body 7. When it is necessary to replace the reducing sleeve 19 with a different inner diameter, the reducing sleeve 19 can be removed from the support body 7 by only unscrewing the positioning screw 33 out of the positioning hole.

[0046] The feeding device 34 can be set as an extruder. After the pulp is put into the feed hopper of the extruder, it is extruded from the discharge port of the extruder by the extruder. A feeding pipe 35 connected to the thickening channel 20 is fixed on the outer wall of the support body 7. The feeding pipe 35 is connected to the discharge port of the extruder through a pipeline, so as to transport the pulp into the thickening channel 20. The feeding device 34 is not limited to an extruder, and can also be other devices that can transport the pulp into the thickening channel 20.

[0047] A paper tube production method comprises the following production steps: S1, passing a paper tube base unit 5 through a containing cavity 22, and placing two ends of the paper tube base unit 5 on positioning arc surfaces 27 of two positioning plates 26 respectively;

[0048] S2, the piston rod of the telescopic cylinder drives the driving rod 2 to move away from the supporting body 7, and the driving rod 2 drives the clamping plate 6 to clamp the paper tube base unit 5 through the rotating rod 3. The clamping plate 6 clamps the paper tube base unit 5 and drives the sealing ring 16 to abut against the clamping plate 6 through the extrusion block 8;

[0049] S3, the feeding device 34 feeds pulp into the thickening channel 20;

[0050] S4. The paper pulp is connected to the paper tube base unit 5 in the thickening channel 20, and the paper tube is formed.

[0051] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A paper tube production device, comprising a support tube and a paper tube base unit sleeved on the paper tube support tube, characterized in that: It also includes a support body, the support body is provided with a receiving cavity that passes through both ends of the support body, the inner diameter of the receiving cavity is larger than the outer diameter of the paper tube base unit, a thickening channel is formed between the outer wall of the paper tube base unit and the inner wall of the receiving cavity, both ends of the support tube are provided with opening and closing devices for opening or closing both ends of the thickening channel, and the support tube is also connected to a feeding device for feeding pulp into the thickening channel; The opening and closing device comprises two clamping plates arranged at each end of the support body, and the support tube is provided with a driving device capable of simultaneously driving the two clamping plates to move toward or away from the axis of the paper tube base unit; The driving device comprises a driving cylinder fixed on a supporting body, a driving rod is fixed on a piston rod of the driving cylinder, a rotating rod is hinged on each of the clamping plates, and one end of the rotating rod away from the clamping plate is hinged to the driving rod; Both ends of the support body are provided with sealing ring grooves, a sealing ring is inserted into the sealing ring groove, and a sealing spring is provided between the bottom surface of the sealing ring groove and the sealing ring; A connecting groove connected to the sealing ring groove is provided on the outer wall of the support body, a connecting rod extending from the connecting groove is fixed on the outer wall of the sealing ring, an extrusion block is fixed on the clamping plate, the extrusion block is provided with a first inclined surface, and the connecting rod is provided with a second inclined surface corresponding to the first inclined surface.

2. A paper tube production equipment according to claim 1, characterized in that: The sealing ring comprises a hard layer and an elastic layer, and the elastic layer is arranged on one side close to the opening of the sealing ring groove.

3. A paper tube production equipment according to claim 1, characterized in that: Two opposite sides of the two clamping plates are provided with arc-shaped grooves, and the inner diameter of the arc-shaped groove is equal to the outer diameter of the paper tube base unit.

4. The paper tube production equipment according to claim 1, characterized in that: The support body is provided with a heating device.

5. The paper tube production equipment according to claim 1, characterized in that: A reducing sleeve is inserted in the accommodating cavity, and the reducing sleeve is detachably connected to the supporting body.

6. A paper tube production method, based on the paper tube production equipment according to any one of claims 1 to 5, characterized in that: The method comprises the following production steps: S1, passing the paper tube base unit through the containing cavity; S2, the telescopic cylinder drives the clamping plate to clamp the paper tube base unit, and the clamping plate clamps the paper tube base unit and drives the sealing ring to abut against the clamping plate through the extrusion block; S3, the feeding device feeds pulp into the thickening channel; S4. The pulp is connected with the paper tube base unit in the thickening channel, and the paper tube is formed.

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