Method for guiding and conveying glue-coated paper

Abstract

The invention discloses a method for correcting and conveying glued face paper. The front conveyor belt pulls and conveys the face paper sent out after glue coating. The front probe detects whether the face paper is deflected and sends information to the PLC to control the operation of the correcting servo motor. The front edge of the face paper reaches the transition roller when leaving the front conveyor belt. A tooth bar is arranged at the transition roller. The tooth bar is installed on the correcting shaft. When the front edge of the face paper enters the clamping opening of the tooth bar, the tooth bar clamps the front edge of the face paper. The tooth bar pulls the face paper forward. The correcting servo motor causes the correcting shaft to produce a swinging action to make the front edge of the face paper neat. After the tooth bar continues to pull the face paper forward for a certain distance, the tooth bar releases the clamping of the front edge of the face paper, the tooth bar returns to its position, and the face paper continues to be conveyed forward by the rear conveyor belt until the face paper reaches the desired position. Before or after the face paper reaches the desired position, the side probe detects the side position of the face paper, controls the operation of the lateral correcting motor, and corrects the face paper laterally. The invention can solve the problem of correcting the face paper after glue coating and improve the production quality of the cover.

Description

Technical Field

[0001] The invention relates to the technical field of cover machines, and in particular to a method for correcting and conveying glued surface paper. Background Art

[0002] In the process of producing veneer paper for cardboard, the upper surface of the paper needs to be coated with glue first, and then the cardboard is placed on it. Then the periphery of the paper extending out of the cardboard needs to be turned up and fit the surrounding contours of the cardboard, that is, the cardboard is covered. In the prior art, the gluing of the paper is completed by a gluing roller. Since the thickness of the gluing roller cannot be completely uniform, the front edge of the paper coming out of the gluing roller after gluing will be skewed to varying degrees (including the front edge of the paper itself has a certain degree of skewness when entering the gluing roller). This deflection cannot be corrected by traditional paper straightening technology or other deviation correction technology, because the paper with glue on the upper surface needs to be pulled and transported by a conveyor belt, and the paper is adsorbed on the surface of the conveyor belt and cannot be easily displaced. Because the front edge of the face paper is skewed, when the front and back edges of the face paper are wrapped after the face paper is glued to the cardboard, the angle pressing roller cannot produce accurate and effective indentations on the edge paper at the corners of the cardboard. Therefore, when the left and right edges of the cardboard are wrapped, wrinkles and loose edges are inevitable, affecting the quality of the cover. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a method for correcting and conveying glued surface paper, which can solve the problem of correcting the surface paper after gluing and improve the production quality of the cover.

[0004] The present invention is accomplished by taking the following technical solutions:

[0005] The method for guiding the deflection of glued facial paper is characterized in that: a front conveyor belt and a rear conveyor belt are arranged along the conveying direction of facial paper, the front conveyor belt is provided with vacuum suction holes to absorb the lower surface of the facial paper sent out after gluing, the front conveyor belt pulls and conveys the facial paper, the front probe detects whether the front or rear edge of the facial paper is deflected and sends information to the PLC, the PLC controls the guiding servo motor to work, when the front edge of the facial paper leaves the front conveyor belt and enters the clamping opening of the tooth bar, the tooth bar clamps the front edge of the facial paper, the tooth bar pulls the facial paper forward, the tooth bar is installed on the guiding shaft, and the guiding servo motor The machine causes the deflection correction shaft to produce a deflection motion to make the front edge of the facial paper neat. At this time, only some of the vacuum suction holes on the front conveyor belt are used to absorb the facial paper. After the front edge of the facial paper is neat, the tooth bar continues to pull the facial paper forward. The rear conveyor belt is equipped with vacuum suction holes to absorb the lower surface of the facial paper. The facial paper is conveyed forward by the rear conveyor belt, and the tooth bar releases the clamping of the front edge of the facial paper and returns to its position until the facial paper reaches the desired position. Before or after the facial paper reaches the desired position, the side probe detects the side position of the facial paper and controls the operation of the lateral deflection correction motor to make the facial paper lateral deflection correction.

[0006] Before the front edge of the tissue paper reaches the gripper bar, the correction servo motor allows the correction axis to perform a deflection in advance so that the direction of the gripper bar is aligned parallel to the deflected front edge of the tissue paper.

[0007] The correction servo motor includes a left correction motor and a right correction motor. The two ends of the correction shaft are connected to the left and right slides. The left slide is connected to the output of the left correction motor through the left synchronous belt, and the right slide is connected to the output of the right correction motor through the right synchronous belt. When working, the left correction motor pulls the correction shaft from the left end of the correction shaft, and the right correction motor pulls the correction shaft from the right end of the correction shaft. The different pulling distances at the two ends cause the correction shaft to produce a swinging motion.

[0008] The front edge of the tissue paper first reaches the transition roller when leaving the front conveyor belt, and the transition roller rotates in the same direction as the tissue paper conveying.

[0009] The roller surface of the transition roller is provided with an annular groove, and the lower teeth of the tooth row are arranged in the annular groove.

[0010] A separation knife is provided at the output end of the front conveyor belt, and the separation knife separates the surface paper leaving the front conveyor belt from the front conveyor belt.

[0011] The installation height of the rear conveyor belt is lower than that of the front conveyor belt. When the tooth bar releases the clamping of the front edge of the facing paper, the lower teeth of the tooth bar swing downward, so that the front edge of the facing paper leaves the tooth bar and falls onto the rear conveyor belt.

[0012] When the transverse deviation correction motor is working, the rear conveyor belt is moved left and right by driving the mounting bracket of the rear conveyor belt to move left and right, so that the surface paper is corrected laterally.

[0013] The method for guiding the glued face paper by the above-mentioned technical solution can effectively solve the problem of guiding the face paper after gluing, so that when the front and back edges of the face paper are wrapped after the face paper is glued to the cardboard, the angle pressing roller can produce accurate and effective indentations on the edge paper at the corners of the cardboard, so that the corners of the cardboard will not have corner wrinkles or looseness when the left and right edges are wrapped, thereby ensuring the quality of cover production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention has the following accompanying drawings:

[0015] Figure 1 The structure diagram of the glue-coated paper deviation correction and conveying device Figure 1 ,

[0016] Figure 2 The structure diagram of the glue-coated paper deviation correction and conveying device Figure 2 ,

[0017] Figure 3 The structure diagram of the glue-coated paper deviation correction and conveying device Figure 3 ,

[0018] Figure 4 for Figure 1 A partial enlarged view of the middle deviation-correcting shaft and connecting parts.

[0019] Figure 5 for Figure 1 A longitudinal cross-sectional view of

[0020] Figure 6 for Figure 5 A partial enlarged view of

[0021] Figure 7 This is the connection structure diagram between the lower shaft of the deviation correction shaft and the synchronous belt. DETAILED DESCRIPTION

[0022] like Figure 1-6As shown, the deflection correction conveying device for glue-coated surface paper is provided with a front conveying belt 1, a transition roller 2 and a rear conveying belt 3 along the conveying direction of the surface paper. The installation height of the rear conveying belt 3 is smaller than the front conveying belt 1. The front conveying belt 1 is controlled and driven by a front servo motor 9, and the rear conveying belt 3 is controlled and driven by a rear servo motor 12. Vacuum suction holes 17 are provided on the surfaces of the front conveying belt 1 and the rear conveying belt 3. A front probe 6 is provided at the input end of the front conveying belt 1. The output of the front probe 6 is electrically connected to the PLC. The PLC controls the operation of the deflection correction servo motor. A separation knife 28 is provided at the output end of the front conveying belt 1. The separation knife 28 will leave the front conveying belt 1. The face paper of the belt is separated from the front conveyor belt, and the transition roller 2 rotates in the same direction as the face paper A is conveyed, and is also controlled and driven by the front servo motor 9. The roller surface of the transition roller 2 is provided with an annular groove 23, and a tooth row 4 is arranged at the annular groove 23. The tooth row 4 is installed on the deviation correction shaft 5. The tooth row 4 consists of an upper tooth 41 and a lower tooth 42. The deviation correction shaft 5 consists of an upper shaft 51 and a lower shaft 52. The upper tooth 41 is fixedly installed on the upper shaft 51, and the lower tooth 42 is fixedly installed on the lower shaft 52. The lower tooth 42 is located in the annular groove 23. The tooth exhaust cylinder 22 pushes the lower shaft 52 to rotate so that the lower tooth 42 swings downward, and the lower tooth 42 moves to After the downward swing, it returns to its original position through the tension spring 21; the correction servo motor works to make the correction shaft 5 produce a swaying action. The correction servo motor includes a left correction motor 13 and a right correction motor 15. One end of the upper shaft 51 of the correction shaft can be axially movable and is arranged on the left slide seat 8, and the other end is fixedly connected to the right slide seat 7. The two ends of the lower shaft 52 of the correction shaft can be axially movable and are arranged on the left slide seat 8 and the right slide seat 7 through linear bearings 24. The left slide seat 8 is rotatably connected to the left synchronous belt connecting plate through a left rotating pin, and the left synchronous belt connecting plate is fixedly connected to the left linear guide slider. The left synchronous belt 10 is driven by the left correction motor 13 The right slide 7 is rotatably connected to the right synchronous belt connecting plate 26 through the right rotating pin 25, the right synchronous belt connecting plate 26 is fixedly connected to the right linear guide slider 27, and the right synchronous belt 16 is driven by the right correcting motor 15; the rear conveyor belt 3 is provided with a rear probe 14 and a side probe 11 near the output end, the rear probe 14 controls the transmission action of the rear conveyor belt 3 through the PLC, and the side probe 11 controls the operation of the lateral correcting motor 18 through the PLC, and the lateral correcting motor 18 drives the mounting bracket 20 installed with the rear conveyor belt 3 to perform a lateral sliding action through the screw nut structure 19.

[0023] The method for guiding the glue-coated facial paper to be conveyed according to the present invention is as follows: the front conveyor belt 1 and the rear conveyor belt 3 perform intermittent facial paper feeding, the front conveyor belt 1 is provided with a vacuum suction hole 17 to adsorb the lower surface of the facial paper A delivered after glue coating, the front conveyor belt 1 pulls the facial paper A, the front probe 6 detects whether the front or rear edge of the facial paper is skewed and sends information to the PLC, the PLC controls the left guiding servo motor 13 and the right guiding servo motor 15 to work, the facial paper A is conveyed forward along the front conveyor belt 1, when the front edge of the facial paper A leaves the front conveyor belt 1, the separation knife 28 separates the facial paper leaving the front conveyor belt from the front conveyor belt to prevent the facial paper from going down, and then the facial paper A is conveyed forward along the front conveyor belt 1. The front edge reaches the transition roller 2, and the transition roller 2 rotates in the same direction as the conveying direction of the facial paper A, and lifts up the front edge of the facial paper that is partially warped and deformed after being coated with glue and damp, so that it is introduced into the clamping opening of the tooth row 4 along the transition roller 2. The tooth row 4 is installed on the correction shaft 5. When the front edge of the facial paper A enters the clamping opening of the tooth row 4, the tooth row 4 clamps the front edge of the facial paper, and the tooth row 4 pulls the facial paper A forward. The left correction motor 13 pulls the correction shaft 5 from the left end of the correction shaft, and the right correction motor 15 pulls the correction shaft 5 from the right end of the correction shaft. The pulling distances at the two ends are different to make the correction shaft 5 produce a swinging action, so that the front edge of the facial paper A is neat. At this time, only the front conveyor belt 1 is Some vacuum suction holes are used to absorb the facial paper A (generally, only a few rows of vacuum suction holes in the middle of the front conveyor belt are designed to be connected to the vacuum chamber, so that the facial paper is only subject to a small constraint force on the front conveyor belt and can be driven by the tooth bar to shift and correct the deviation during correction). After the front edge of the facial paper is aligned, the tooth bar 4 continues to pull the facial paper A forward. At this time, the left and right correction motors act synchronously, and the distances of the correction shaft 5 pulled by both ends are the same. The facial paper enters the rear conveyor belt 3. The rear conveyor belt 3 is provided with vacuum suction holes to absorb the lower surface of the facial paper. At this time, the rear conveyor belt, the front conveyor belt and the tooth bar are transmitted synchronously to prevent the lower surface of the facial paper from being scratched. The tooth bar 4 pulls the facial paper After A moves forward a certain distance, the tooth row 4 releases the clamping of the front edge of the face paper, and the lower tooth 42 of the tooth row is pushed by the tooth row cylinder 22 to swing downward, so that the front edge of the face paper will directly fall onto the rear conveyor belt 3, and the tooth row 4 returns to its original position, and the face paper A continues to be conveyed forward by the rear conveyor belt 3. The side probe 11 detects the side position of the face paper A and sends information to the PLC, and the PLC controls the lateral deviation correction motor 18 to work, driving the rear conveyor belt 3 to move left and right, so that the face paper A is laterally corrected. Finally, when the rear probe 14 detects the face paper A, the rear conveyor belt 3 is controlled to stop conveying when the face paper reaches the required position, and the correction and conveying of the glue-coated face paper is completed. During the above-mentioned action, before the front edge of the face paper reaches the tooth row, the left and right correction motors can make the correction axis swing once in advance, so that the tooth row direction is parallel to the deflected front edge of the face paper, so that all the tooth rows can reliably clamp the front edge of the face paper (especially when the deflection of the front edge of the face paper is relatively large), which is conducive to the correction of the face paper.

Claims

1. A method for guiding and conveying glue-coated paper, characterized in that: A front conveyor belt and a rear conveyor belt are arranged along the conveying direction of the facial paper. The front conveyor belt is provided with vacuum suction holes to absorb the lower surface of the facial paper sent out after gluing. The front conveyor belt pulls and conveys the facial paper. The front probe detects whether the front or back of the facial paper is skewed and sends information to the PLC. The PLC controls the correction servo motor to work. When the front of the facial paper leaves the front conveyor belt and enters the clamping opening of the tooth bar, the tooth bar clamps the front of the facial paper and pulls the facial paper forward. The tooth bar is installed on the correction shaft, and the correction servo motor causes the correction shaft to produce a deflection. The swing action makes the front edge of the facial paper neat. At this time, only some of the vacuum suction holes on the front conveyor belt are used to absorb the facial paper. After the front edge of the facial paper is neat, the tooth bar continues to pull the facial paper forward. The rear conveyor belt is equipped with vacuum suction holes to absorb the lower surface of the facial paper. The facial paper is conveyed forward by the rear conveyor belt. The tooth bar releases the clamping of the front edge of the facial paper and returns to its position until the facial paper reaches the desired position. Before or after the facial paper reaches the desired position, the side probe detects the side position of the facial paper and controls the lateral deviation correction motor to make the lateral deviation correction of the facial paper.

2. The method for guiding the deflection of the glue-coated paper according to claim 1, characterized in that: Before the front edge of the tissue paper reaches the gripper bar, the correction servo motor allows the correction axis to perform a deflection in advance so that the direction of the gripper bar is aligned parallel to the deflected front edge of the tissue paper.

3. The method for guiding the glue-coated paper to convey the glue-coated paper according to claim 1, characterized in that: The correction servo motor includes a left correction motor and a right correction motor. The two ends of the correction shaft are connected to the left and right slides. The left slide is connected to the output of the left correction motor through the left synchronous belt, and the right slide is connected to the output of the right correction motor through the right synchronous belt. When working, the left correction motor pulls the correction shaft from the left end of the correction shaft, and the right correction motor pulls the correction shaft from the right end of the correction shaft. The different pulling distances at the two ends cause the correction shaft to produce a swinging motion.

4. The method for guiding and conveying glue-coated paper according to claim 1 or 2, characterized in that: The front edge of the tissue paper first reaches the transition roller when leaving the front conveyor belt, and the transition roller rotates in the same direction as the tissue paper conveying.

5. The method for guiding and conveying glue-coated paper according to claim 4, characterized in that: The roller surface of the transition roller is provided with an annular groove, and the lower teeth of the tooth row are arranged in the annular groove.

6. The method for guiding and conveying glue-coated paper according to claim 1 or 2, characterized in that: A separation knife is provided at the output end of the front conveyor belt, and the separation knife separates the surface paper leaving the front conveyor belt from the front conveyor belt.

7. The method for guiding the deflection of the glue-coated paper according to claim 1, characterized in that: The installation height of the rear conveyor belt is lower than that of the front conveyor belt. When the tooth bar releases the clamping of the front edge of the facing paper, the lower teeth of the tooth bar swing downward, so that the front edge of the facing paper leaves the tooth bar and falls onto the rear conveyor belt.

8. The method for guiding the deviation of glue-coated paper as claimed in claim 1, characterized in that: When the transverse deviation correction motor is working, the rear conveyor belt is moved left and right by driving the mounting bracket of the rear conveyor belt to move left and right, so that the surface paper is corrected laterally.

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