Paper tube inward folding and stripping mechanism

Abstract

The invention provides a paper tube inward folding and stripping mechanism. The paper tube inward folding and stripping mechanism solves the problem that an existing paper tube inward folding and stripping mechanism is poor in paper tube inward folding effect. The paper tube clamping device comprises a mounting frame, a first clamping structure used for clamping the side edge of the upper end of a paper tube, a second clamping structure arranged opposite to the first clamping structure, a first driving part used for driving the first clamping structure to move inwards and downwards, and a second driving part used for driving the second clamping structure to move inwards and downwards. The mounting frame is further provided with a stripping structure used for stretching into the position between the paper tube and the yarn roll. The inward and downward movement direction of the first clamping structure and the second clamping structure is the same as the inward inclination direction of the upper end of the paper tube, the side edge of the upper end of the paper tube is not prone to disengaging from the first clamping structure / the second clamping structure, and the inward folding effect is improved. And when the first clamping structure / the second clamping structure slides relative to the paper tube, chippings on the paper tube are prevented from entering a gap of the first clamping structure / the second clamping structure, and the clamping force is prevented from being reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of glass fiber processing and relates to a paper tube retracting and stripping mechanism for a glass fiber yarn ball. Background Art

[0002] A Chinese patent discloses a paper tube and yarn extraction device [application publication number CN115806224A], which includes a frame on which a yarn roll positioning mechanism, a paper tube extraction mechanism, a yarn extraction and cutting mechanism, and a paper tube packaging mechanism are installed. The yarn roll positioning mechanism is used to clamp and position the yarn roll, the paper tube extraction mechanism is used to extract the paper tube from the yarn roll, the yarn extraction and cutting mechanism is used to gather, cut and peel the yarn, and the paper tube packaging mechanism is used to place the paper tube in the packaging position on the paper tube shelf.

[0003] The paper tube extraction mechanism includes a paper tube internal support mechanism, a paper tube clamping mechanism, and a paper tube peeling mechanism. The paper tube clamping mechanism includes two pneumatic fingers and two clamping cylinders. The piston rods of the clamping cylinders are fixedly connected to the pneumatic fingers. The pneumatic fingers clamp the two sides of the upper end of the paper tube. Under the action of the clamping cylinders, the upper end of the paper tube moves inward to achieve partial peeling of the yarn roll (yarn ball) at the upper end of the paper tube. Because the clamping cylinders extend radially along the paper tube, when the clamping cylinders drive the pneumatic fingers inward to retract, the upper end of the paper tube will tilt inward, forming a certain angle with the movement direction of the pneumatic fingers, which can easily cause the upper end of the paper tube to separate from the pneumatic fingers, resulting in poor retraction effect. Summary of the Invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a paper tube retraction and peeling mechanism with good retraction effect.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] The paper tube retraction and stripping mechanism includes a mounting frame, a first clamping structure for clamping the upper side of the paper tube, a second clamping structure arranged opposite to the first clamping structure, a first driving member for driving the first clamping structure to move inward and downward, and a second driving member for driving the second clamping structure to move inward and downward. The mounting frame is also provided with a stripping structure for extending between the paper tube and the yarn ball for stripping the paper tube inward.

[0007] The first clamping structure can move inward and downward under the action of the first driving member, and the second clamping structure can move inward and downward under the action of the second driving member, in the same direction as the inward inclination of the upper end of the paper tube. During the entire clamping and retraction process, the upper end side of the paper tube is not easy to escape from the first clamping structure / the second clamping structure, thereby improving the retraction effect and preventing debris on the paper tube from entering the gap between the first clamping structure / the second clamping structure when the first clamping structure / the second clamping structure and the paper tube slide relative to each other, resulting in a decrease in clamping force.

[0008] In the above-mentioned paper tube retraction and peeling mechanism, the first driving member is a first cylinder provided on the mounting frame, the first cylinder extends radially inward and downward along the paper tube, a first mounting seat is provided on the piston rod of the first cylinder, and the first clamping structure is provided on the first mounting seat; the second driving member is a second cylinder provided on the mounting frame, the second cylinder extends radially inward and downward along the paper tube, a second mounting seat is provided on the piston rod of the second cylinder, and the second clamping structure is provided on the second mounting seat.

[0009] The first cylinder and the second cylinder are arranged opposite to each other, and their piston rods can be synchronously extended inward and downward along the radial direction of the paper tube, thereby driving the first clamping structure and the second clamping structure to approach each other, so that the two opposite sides of the upper end of the paper tube tilt inward and downward.

[0010] In the aforementioned paper tube retraction and peeling mechanism, the piston rod of the first cylinder forms an angle of 5° to 30° with the horizontal plane, while the piston rod of the second cylinder forms an angle of 5° to 30° with the horizontal plane. This angle of 5° to 30° between the piston rods of the first and second cylinders facilitates tilting the upper side of the paper tube inward and downward. The size of this angle depends on the diameter of the paper tube; the larger the diameter, the larger the angle.

[0011] In the aforementioned paper tube retraction and peeling mechanism, the first clamping structure is a first finger having a first clamping jaw and a second clamping jaw, which cooperate to clamp the upper side of the paper tube. The first and second clamping jaws can be pneumatically or electrically operated.

[0012] In the above-mentioned paper tube retraction and peeling mechanism, the lower end of the first clamping jaw has a first connecting portion extending toward one side of the second clamping structure, and the end of the first connecting portion away from the first clamping jaw has a first clamping portion extending vertically downward, and the lower end of the second clamping jaw has a second connecting portion extending toward one side of the second clamping structure, and the end of the second connecting portion away from the second clamping jaw has a second clamping portion extending vertically downward, and the first clamping portion and the second clamping portion work together to clamp the upper end side of the paper tube.

[0013] In the aforementioned paper tube retraction and stripping mechanism, the length of the first clamping portion is greater than half the depth of the paper tube. The first clamping portion can cooperate with the second clamping portion to clamp the upper side of the paper tube. The insertion rod can support the inner wall of the paper tube when it moves downward. After the paper tube is removed from the yarn ball, the first cylinder can also reset the paper tube outward and provide support for the paper tube.

[0014] In the aforementioned paper tube retraction and peeling mechanism, the second clamping structure comprises a second finger, which has a third and fourth clamping jaws. The third and fourth clamping jaws cooperate to clamp the upper side of the paper tube. The third and fourth clamping jaws may be pneumatically or electrically operated.

[0015] In the above-mentioned paper tube retraction and peeling mechanism, the lower end of the third clamping jaw has a third connecting portion extending toward one side of the first clamping structure, and the end of the third connecting portion away from the third clamping jaw has a third clamping portion extending vertically downward. The lower end of the fourth clamping jaw has a fourth connecting portion extending toward one side of the first clamping structure, and the end of the fourth connecting portion away from the fourth clamping jaw has a fourth clamping portion extending vertically downward. The third clamping portion and the fourth clamping portion work together to clamp the upper side of the paper tube.

[0016] In the aforementioned paper tube retraction and stripping mechanism, the length of the third clamping portion is greater than half the depth of the paper tube. The third clamping portion can cooperate with the fourth clamping portion to clamp the upper side of the paper tube, supporting the inner wall of the paper tube during the clamping process. After the paper tube is removed from the yarn ball, the second cylinder can also reset the paper tube outward and provide support for the paper tube.

[0017] In the above-mentioned paper tube retraction and stripping mechanism, the stripping structure includes a plurality of insertion rods that slide vertically through the mounting frame and a driving cylinder arranged on the mounting frame for driving the plurality of insertion rods to rise and fall synchronously. The first driving member and the first clamping structure can form a first stripping space between the paper tube and the yarn ball, and some of the insertion rods are arranged opposite to the first stripping space. The second driving member and the second clamping structure can form a second stripping space between the paper tube and the yarn ball, and the remaining insertion rods are arranged opposite to the second stripping space.

[0018] The driving cylinder is equipped with a vibration motor, which enables the paper tube and yarn ball to be fully peeled off.

[0019] When the first drive member and the first clamping structure create a first peeling space between the paper tube and the yarn ball, and the second drive member and the second clamping structure create a second peeling space between the paper tube and the yarn ball, the drive cylinder simultaneously lowers the rods. The rods pass through the first and second peeling spaces and are inserted between the paper tube and the yarn ball, separating the paper tube from the yarn ball. The length of the rods is greater than the depth of the paper tube, allowing the lower ends of the rods to extend from the lower end of the yarn ball, completely peeling the paper tube from the yarn ball.

[0020] Compared with the existing technology, the paper tube retraction and stripping mechanism has the following advantages:

[0021] The inward and downward movement direction of the first clamping structure and the second clamping structure is the same as the inward tilting direction of the upper end of the paper tube. The upper side of the paper tube is not easy to fall out of the first clamping structure / the second clamping structure, which improves the retraction effect and avoids the debris on the paper tube from entering the gap of the first clamping structure / the second clamping structure when the first clamping structure / the second clamping structure and the paper tube slide relative to each other, resulting in a decrease in clamping force; the length of the first clamping part / the second clamping part is greater than half the depth of the paper tube, and the insertion rod can support the inner wall of the paper tube when it moves downward. After the paper tube is pulled out of the yarn ball, the paper tube can be reset outward under the action of the first cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the paper tube retraction and stripping mechanism.

[0023] Figure 2 It is a front view of the paper tube retraction and stripping mechanism.

[0024] In the figure, 1. mounting frame; 2. first cylinder; 3. first mounting seat; 4. second cylinder; 5. second mounting seat; 6. first finger; 61. first clamping jaw; 62. second clamping jaw; 63. first connecting part; 64. first clamping part; 65. second connecting part; 66. second clamping part; 7. second finger; 71. third clamping jaw; 72. fourth clamping jaw; 73. third connecting part; 74. third clamping part; 75. fourth connecting part; 76. fourth clamping part; 8. insertion rod; 9. driving cylinder; 10. first connecting rib; 11. second connecting rib. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0026] like Figure 1 and Figure 2 The paper tube retraction and stripping mechanism shown includes a mounting frame 1, a first clamping structure for clamping the upper side of the paper tube, a second clamping structure arranged opposite to the first clamping structure, a first driving member for driving the first clamping structure to move inward and downward, and a second driving member for driving the second clamping structure to move inward and downward.

[0027] Mounting frame 1 is arranged on the glass fiber yarn ball paper pumping tube device, and paper tube retraction and stripping mechanism can be lifted up and down, and are used for upwards extracting paper tube. Mounting frame 1 is also provided with the stripping structure for inwardly stripping paper tube for stretching between paper tube and yarn ball.

[0028] The first clamping structure can move inward and downward under the action of the first driving member, and the second clamping structure can move inward and downward under the action of the second driving member, in the same direction as the inward inclination of the upper end of the paper tube. During the entire clamping and retraction process, the upper end side of the paper tube is not easy to escape from the first clamping structure / the second clamping structure, thereby improving the retraction effect and preventing debris on the paper tube from entering the gap between the first clamping structure / the second clamping structure when the first clamping structure / the second clamping structure and the paper tube slide relative to each other, resulting in a decrease in clamping force.

[0029] like Figure 1 and Figure 2 As shown, the first driving member is a first cylinder 2 mounted on a mounting frame 1. The first cylinder 2 extends radially inward and downward along the paper tube. A first mounting seat 3 is provided on the piston rod of the first cylinder 2, and a first clamping structure is provided on the first mounting seat 3. The second driving member is a second cylinder 4 mounted on the mounting frame 1. The second cylinder 4 extends radially inward and downward along the paper tube. A second mounting seat 5 is provided on the piston rod of the second cylinder 4, and a second clamping structure is provided on the second mounting seat 5. The first cylinder 2 and the second cylinder 4 are arranged opposite each other, and their piston rods can synchronously extend radially inward and downward along the paper tube, thereby driving the first and second clamping structures toward each other, causing the two opposing sides of the upper end of the paper tube to tilt inward and downward.

[0030] The piston rod of the first cylinder 2 forms an angle of 5° to 30° with the horizontal plane, while the piston rod of the second cylinder 4 forms an angle of 5° to 30° with the horizontal plane. The size of this angle depends on the diameter of the paper tube; the larger the diameter of the paper tube, the larger the angle. In this embodiment, the piston rods of the first cylinder 2 and the second cylinder 4 both form a 25° angle with the horizontal plane, which helps to tilt the upper side of the paper tube inward and downward.

[0031] like Figure 1 and Figure 2 As shown, the first clamping structure is a first finger 6, which has a first clamping jaw 61 and a second clamping jaw 62. The first clamping jaw 61 and the second clamping jaw 62 work together to clamp the upper end side of the paper tube. The first clamping jaw 61 and the second clamping jaw 62 can be pneumatic or electric.

[0032] like Figure 2 As shown, the lower end of the first clamping jaw 61 has a first connecting portion 63 extending toward one side of the second clamping structure, and the end of the first connecting portion 63 away from the first clamping jaw 61 has a first clamping portion 64 extending vertically downward. The lower end of the second clamping jaw 62 has a second connecting portion 65 extending toward one side of the second clamping structure, and the end of the second connecting portion 65 away from the second clamping jaw 62 has a second clamping portion 66 extending vertically downward. The first clamping portion 64 and the second clamping portion 66 work together to clamp the upper side of the paper tube.

[0033] In this embodiment, the length of the first clamping portion 64 is greater than half the depth of the paper tube. The first clamping portion 64 cooperates with the second clamping portion 66 to clamp the upper side of the paper tube. When the insertion rod 8 moves downward, it supports the inner wall of the paper tube. After the paper tube is removed from the yarn ball, the first cylinder 2 can also return the paper tube to its original position.

[0034] like Figure 1 and Figure 2 As shown, the second clamping structure is a second finger 7, which has a third clamping jaw 71 and a fourth clamping jaw 72. The third clamping jaw 71 and the fourth clamping jaw 72 work together to clamp the upper end side of the paper tube. The third clamping jaw 71 and the fourth clamping jaw 72 can be pneumatic or electric.

[0035] like Figure 2 As shown, the lower end of the third clamping jaw 71 has a third connecting portion 73 extending toward one side of the first clamping structure, and the end of the third connecting portion 73 away from the third clamping jaw 71 has a third clamping portion 74 extending vertically downward. The lower end of the fourth clamping jaw 72 has a fourth connecting portion 75 extending toward one side of the first clamping structure, and the end of the fourth connecting portion 75 away from the fourth clamping jaw 72 has a fourth clamping portion 76 extending vertically downward. The third clamping portion 74 and the fourth clamping portion 76 work together to clamp the upper side of the paper tube.

[0036] In this embodiment, the length of the third clamping portion 74 is greater than half the depth of the paper tube. The third clamping portion 74 can cooperate with the fourth clamping portion 76 to clamp the upper side of the paper tube, supporting the inner wall of the paper tube during the clamping process. After the paper tube is removed from the yarn ball, the second cylinder 4 can also return the paper tube to its original position.

[0037] like Figure 1 and Figure 2 As shown, a first connecting rib 10 and a second connecting rib 11 are respectively provided on two opposite sides of the mounting frame 1 , the first cylinder 2 is provided on the first connecting rib 10 , and the second cylinder 4 is provided on the second connecting rib 11 .

[0038] like Figure 1 and Figure 2 As shown, the stripping structure includes a plurality of insertion rods 8 vertically slidingly inserted into the mounting frame 1 and a driving cylinder 9 provided on the mounting frame 1 for driving the plurality of insertion rods 8 to rise and fall synchronously. The first driving member and the first clamping structure can form a first stripping space between the paper tube and the yarn ball, and some of the insertion rods 8 are arranged opposite to the first stripping space. The second driving member and the second clamping structure can form a second stripping space between the paper tube and the yarn ball, and the remaining insertion rods 8 are arranged opposite to the second stripping space.

[0039] A vibration motor is provided on the driving cylinder 9 so that the paper tube and the yarn ball can be fully peeled off.

[0040] When the first driving member and the first clamping structure form a first peeling space between the paper tube and the yarn ball, and at the same time the second driving member and the second clamping structure form a second peeling space between the paper tube and the yarn ball, the driving cylinder 9 drives several insertion rods 8 to descend synchronously, and the insertion rods 8 are inserted between the paper tube and the yarn ball through the first peeling space / second peeling space, and the vibration motor generates vibration to peel the paper tube off the yarn ball.

[0041] The length of the plurality of insertion rods 8 is greater than the depth of the paper tube, so that the lower ends of the insertion rods 8 can extend from the lower end of the yarn ball, thereby achieving the purpose of completely peeling the paper tube from the yarn ball.

[0042] In this embodiment, there are four insertion rods 8: one insertion rod 8 is provided on both sides of the first finger 6, and one insertion rod 8 is provided on both sides of the second finger 7. The four insertion rods 8 are respectively arranged close to the inner surface of the yarn ball.

[0043] In some other embodiments, the first clamping structure and the second clamping structure may be structures similar to pneumatic fingers, such as electric grippers, magnetic suction cups, etc.

[0044] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A paper tube retraction and peeling mechanism, characterized in that: The invention comprises a mounting frame (1), a first clamping structure for clamping the side edge of the upper end of a paper tube, a second clamping structure arranged opposite to the first clamping structure, a first driving member for driving the first clamping structure to move inward and downward, and a second driving member for driving the second clamping structure to move inward and downward. The mounting frame (1) is also provided with a peeling structure for extending between the paper tube and the yarn ball and for peeling the paper tube inward.

2. The paper tube retraction and peeling mechanism according to claim 1, characterized in that: The first driving member is a first cylinder (2) provided on the mounting frame (1), the first cylinder (2) extends radially inward and downward along the paper tube, a first mounting seat (3) is provided on the piston rod of the first cylinder (2), and the first clamping structure is provided on the first mounting seat (3); the second driving member is a second cylinder (4) provided on the mounting frame (1), the second cylinder (4) extends radially inward and downward along the paper tube, a second mounting seat (5) is provided on the piston rod of the second cylinder (4), and the second clamping structure is provided on the second mounting seat (5).

3. The paper tube retraction and peeling mechanism according to claim 2, characterized in that: The included angle between the piston rod of the first cylinder (2) and the horizontal plane is 5° to 30°, and the included angle between the piston rod of the second cylinder (4) and the horizontal plane is 5° to 30°.

4. The paper tube retraction and peeling mechanism according to claim 1 or 2, characterized in that: The first clamping structure is a first finger (6), and the first finger (6) has a first clamping claw (61) and a second clamping claw (62). The first clamping claw (61) and the second clamping claw (62) work together to clamp the upper side of the paper tube.

5. The paper tube retraction and peeling mechanism according to claim 4, characterized in that: The lower end of the first clamping jaw (61) has a first connecting portion (63) extending toward one side of the second clamping structure, and the end of the first connecting portion (63) away from the first clamping jaw (61) has a first clamping portion (64) extending vertically downward. The lower end of the second clamping jaw (62) has a second connecting portion (65) extending toward one side of the second clamping structure, and the end of the second connecting portion (65) away from the second clamping jaw (62) has a second clamping portion (66) extending vertically downward. The first clamping portion (64) and the second clamping portion (66) work together to clamp the upper side of the paper tube.

6. The paper tube retraction and stripping mechanism according to claim 5, characterized in that: The length of the first clamping portion (64) is greater than half the depth of the paper tube.

7. The paper tube retraction and peeling mechanism according to claim 1 or 2, characterized in that: The second clamping structure is a second finger (7), and the second finger (7) has a third clamping jaw (71) and a fourth clamping jaw (72). The third clamping jaw (71) and the fourth clamping jaw (72) work together to clamp the upper side of the paper tube.

8. The paper tube retraction and peeling mechanism according to claim 7, characterized in that: The lower end of the third clamping jaw (71) has a third connecting portion (73) extending toward one side of the first clamping structure, and the end of the third connecting portion (73) away from the third clamping jaw (71) has a third clamping portion (74) extending vertically downward. The lower end of the fourth clamping jaw (72) has a fourth connecting portion (75) extending toward one side of the first clamping structure, and the end of the fourth connecting portion (75) away from the fourth clamping jaw (72) has a fourth clamping portion (76) extending vertically downward. The third clamping portion (74) and the fourth clamping portion (76) work together to clamp the upper side of the paper tube.

9. The paper tube retraction and peeling mechanism according to claim 8, characterized in that: The length of the third clamping portion (74) is greater than half the depth of the paper tube.

10. The paper tube retraction and peeling mechanism according to claim 1, characterized in that: The stripping structure comprises a plurality of insertion rods (8) vertically slidingly inserted into the mounting frame (1) and a driving cylinder (9) provided on the mounting frame (1) for driving the plurality of insertion rods (8) to rise and fall synchronously. The first driving member and the first clamping structure can form a first stripping space between the paper tube and the yarn ball, and some of the insertion rods (8) are arranged opposite to the first stripping space. The second driving member and the second clamping structure can form a second stripping space between the paper tube and the yarn ball, and the remaining insertion rods (8) are arranged opposite to the second stripping space.

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