Real-time automatic rejecting device for defective corrugated boards

Abstract

The invention belongs to the technical field of corrugated boards, and particularly relates to a corrugated board defective product real-time automatic removing device which comprises a conveying table and an opening for guiding materials in the first direction of the conveying table. The rejecting mechanism comprises a rejecting seat obliquely and fixedly arranged at the opening and a rejecting plate rotatably arranged on the rejecting seat, a separating plate for separating and rejecting is fixedly arranged at the center, corresponding to the first direction, of the rejecting seat, and a notch for containing the rejecting plate is formed in the rejecting seat; and the bottom plate is fixedly arranged below the removing seat. The corrugated board flattening device is simple in structure, the corrugated boards are flattened when the flattening mechanism makes contact with the corrugated boards, meanwhile, power of the flattening mechanism is utilized to drive the vacuum type piston assembly to conduct pushing so as to mark the defective corrugated boards in the collecting box, it is guaranteed that the conditions such as the production batch of the corrugated boards can be traced back in the follow-up process, and the production efficiency is improved. Therefore, convenience is provided for people to use.

Description

Technical Field

[0001] The present invention relates to the technical field of corrugated cardboard, and in particular to a device for automatically removing defective corrugated cardboard in real time. Background Art

[0002] Corrugated cardboard, also known as corrugated board, is made by bonding at least one layer of corrugated paper and one layer of box board paper (also called case board paper). It has good elasticity and extensibility and is mainly used for manufacturing cartons, the sandwich of cartons, and other packaging materials for fragile goods. It is made from local grass pulp and waste paper through beating to form a raw board similar to yellow board paper, then mechanically processed to roll it into a corrugated shape, and then adhesively bonded to the box board paper on its surface with adhesives such as sodium silicate. Currently, on a corrugated cardboard production line, when transporting corrugated cardboard, an automatic device for removing defective corrugated cardboard is needed to remove and collect the unqualified cardboard to prevent unqualified products from entering the market.

[0003] In the prior art, although the removal of defective corrugated cardboard has been achieved, when collecting the corrugated cardboard, it is necessary for workers to sort out the cardboard in the collection box, and when dealing with the defective corrugated cardboard subsequently, it is impossible to trace its production batch and other situations, which affects finding the root cause of quality problems. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a device for automatically removing defective corrugated cardboard in real time. When the flattening mechanism contacts the corrugated cardboard, it flattens the cardboard, and at the same time, the power of the flattening mechanism is utilized to drive a vacuum piston assembly to push and mark the defective corrugated cardboard in the collection box, ensuring that the production batch and other situations can be traced subsequently, finding the root cause of quality problems, and facilitating people's use.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A device for automatically removing defective corrugated cardboard in real time, comprising: A conveying table and an opening for guiding materials arranged along the first direction of the conveying table; A removing mechanism, including a removing seat obliquely fixed at the opening, a removing plate rotatably arranged on the removing seat, a partition plate for separating and removing fixed at the center of the removing seat corresponding to the first direction, and a notch for accommodating the removing plate provided on the removing seat; A bottom plate fixed below the removing seat, two collection boxes fixed on the bottom plate corresponding to the inclined end of the removing seat, a liftable hanging plate arranged above the collection boxes in the first direction, a top plate installed at the feeding position of the collection boxes at the bottom of the hanging plate, a sealing seat fixedly installed at the bottom of the top plate, and a marking plate slidably arranged at the bottom of the sealing seat and a piston assembly for driving the marking plate to move and mark. The flattening mechanism includes a connecting seat installed at the bottom of the top plate, a compression leg rotatably arranged on the connecting seat and used for flattening defective corrugated cardboard below the piston assembly. Connecting rings are fixedly arranged on one side of the two compression legs facing each other, and a tension spring for resetting the compression legs is connected between the two connecting rings.

[0006] Through the above, by using the flattening mechanism, the defective corrugated cardboard in the collection box can be flattened, and the piston plate assembly can achieve the effect of marking on the corrugated cardboard.

[0007] Further, the piston assembly includes connecting rods slidably arranged on the side of the sealing seat in the directions of the two connecting seats. Piston plates I are fixedly arranged at one end of the two connecting rods facing each other and slid on the inner wall of the sealing seat. A piston plate II is slid vertically downward on the inner wall of the sealing seat, and a push rod fixedly arranged at the bottom of the piston plate II and fixedly connected to the marking plate.

[0008] Through the above, when the piston plate I moves in the sealing seat, it drives the piston II to move downward by the action of pressure, and drives the marking plate to move downward through the push rod to complete the marking effect on the corrugated cardboard.

[0009] Further, an exhaust pipe is arranged on the outer peripheral wall of the sealing seat, and an air valve for controlling air is arranged on the exhaust pipe.

[0010] Through the above, the air valve is set for one-way exhaust to prevent external gas from entering the sealing seat through the exhaust pipe.

[0011] Further, an L-shaped plate fixed to the connecting rod is slidably arranged at the bottom of the top plate. A sector gear corresponding to the lower part of the L-shaped plate is rotatably arranged in the connecting seat, and teeth meshing with the sector gear are fixedly arranged on the L-shaped plate in sequence.

[0012] Through the above, when the sector gear rotates, it drives the L-shaped plate to move along the bottom of the top plate by meshing with the teeth.

[0013] Further, a rejection motor is fixedly arranged below one end of the rejection seat corresponding to the rejection plate, and the output shaft of the rejection motor is fixedly connected to the rejection plate.

[0014] Through the above, when the rejection motor starts, it can drive the rejection plate to rotate and guide the corrugated cardboard to achieve the rejection effect.

[0015] Further, two conveying rollers are symmetrically and rotatably arranged in the conveying table along the first direction. A conveyor belt is driven between the two conveying rollers, and a conveying motor fixed to the side of the conveying table and fixedly connected to one of the conveying rollers.

[0016] Through the above, when the conveyor motor starts, the transmission between the conveyor belt and the two conveyor rollers is utilized to realize the conveyance of corrugated cardboard.

[0017] Furthermore, the conveyor platform is provided above the conveyor belt with a second bracket and a monitor fixedly arranged between the second bracket and the conveyor belt for taking real-time pictures of the conveyed cardboard.

[0018] Through the above, the monitor is arranged above the conveyor belt, ensuring that the corrugated cardboard on the conveyor belt can be monitored in real time.

[0019] Furthermore, on the conveyor platform, below the monitor, there are arranged long plates for guiding the cardboard and support rods fixedly arranged on the conveyor platform for supporting the long plates.

[0020] Through the above, the arrangement of the two long plates ensures that the corrugated cardboard on the conveyor line will not deviate from the conveyor belt.

[0021] Furthermore, a first bracket is fixedly installed at the top of the collection box, and a cylinder for driving the lifting of the hanging plate is fixedly arranged inside the first bracket.

[0022] Through the above, the first bracket is arranged in a four-sided frame structure, ensuring the support stability for the cylinder.

[0023] Furthermore, inside the first bracket, symmetrically fixed with the cylinder as the center are vertical rods for vertically limiting the hanging plate.

[0024] Through the above, when the cylinder pushes the hanging plate to lift or lower, the vertical rods are utilized to achieve the effect of vertical limiting.

[0025] Compared with the prior art, the advantages of the present invention are as follows: 1. In this solution, the cylinder can drive the hanging plate and the top plate to make the marking mechanism enter the collection box. At the same time, the two compression legs contact the cardboard in the collection box, and the two compression legs rotate around the connection seat center and expand to both sides, which can achieve the effect of leveling the cardboard in the collection box; 2. In this solution, under the action of the rotation of the two sector gears, the two L-shaped plates are driven to approach each other through the teeth. The two L-shaped plates drive the two piston plates one to be extruded in the sealing seat under the action of the two connecting rods, increasing the internal pressure and pushing the piston plate two to move downward and compress the return spring. The piston plate two drives the marking plate to move downward through the push rod to contact the cardboard, and then completes the marking work on the cardboard, so that it can be easily traced back to its production batch and other situations in the subsequent process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of a real-time automatic rejection device for defective corrugated cardboard proposed by the present invention; Figure 2 It is a partial side view structural diagram of the collection box part of the real-time automatic rejection device for defective corrugated cardboard proposed by the present invention; Figure 3 It is for the Figure 2 part A structural diagram in the real-time automatic rejection device for defective corrugated cardboard proposed by the present invention; Figure 4 It is a side view structural diagram of the bracket part of the real-time automatic rejection device for defective corrugated cardboard proposed by the present invention.

[0028] The corresponding relationship of the reference numerals in the drawings is as follows: 1, conveying table; 2, opening; 201, rejection seat; 202, notch; 203, rejection plate; 204, partition plate; 3, bottom plate; 4, collection box; 5, support one; 501, cylinder; 502, vertical rod; 503, hanging plate; 504, top plate; 505, connecting seat; 506, rotating rod; 507, compression leg; 508, sector gear; 509, L-shaped plate; 510, teeth; 511, connecting ring; 512, tension spring; 6, sealing seat; 601, connecting rod; 602, piston plate one; 603, piston plate two; 604, return spring; 605, push rod; 606, marking plate; 607, exhaust pipe; 608, air valve; 7, conveying roller; 701, conveyor belt; 702, conveying motor; 8, support two; 801, monitoring; 9, support rod; 901, long plate. Detailed implementation manners

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] Refer to Figures 1-4 , a real-time automatic rejection device for defective corrugated cardboard, including: A conveying table 1 and an opening 2 for guiding materials arranged along the first direction of the conveying table 1; The rejection mechanism includes a rejection seat 201 fixedly inclined at the opening 2, a rejection plate 203 rotatably arranged on the rejection seat 201, a partition plate 204 for separating and rejecting fixedly arranged at the center of the rejection seat 201 corresponding to the first direction, and a notch 202 for accommodating the rejection plate 203 arranged on the rejection seat 201; The bottom plate 3 is fixedly arranged below the rejection seat 201. Two collection boxes 4 are fixedly arranged on the bottom plate 3 corresponding to the inclined end of the rejection seat 201. An elevating suspension plate 503 is arranged above the collection box 4 in the first direction. A top plate 504 is installed at the feeding position of the collection box 4 at the bottom of the suspension plate 503. A sealing seat 6 is fixedly installed at the bottom of the top plate 504. A marking plate 606 and a piston assembly for driving the marking plate 606 to move and mark are slidably arranged at the bottom of the sealing seat 6; The flattening mechanism includes a connecting seat 505 installed at the bottom of the top plate 504, and compression legs 507 rotatably arranged on the connecting seat 505 and used for flattening defective corrugated cardboard below the piston assembly. Connecting rings 511 are fixedly arranged on one side of the two compression legs 507 facing each other, and a tension spring 512 for resetting the compression legs 507 is connected between the two connecting rings 511.

[0031] In this embodiment, the piston assembly includes connecting rods 601 slidably arranged on the side surface of the sealing seat 6 towards the two connecting seats 505. Piston plates 602 slidable with the inner wall of the sealing seat 6 are fixedly arranged at one end of the two connecting rods 601 facing each other. A piston plate 603 is slidably arranged vertically downward on the inner wall of the sealing seat 6, and a push rod 605 fixedly arranged at the bottom of the piston plate 603 and fixedly connected to the marking plate 606.

[0032] In this embodiment, an exhaust pipe 607 is arranged on the outer peripheral wall of the sealing seat 6, and an air valve 608 for controlling air is arranged on the exhaust pipe 607.

[0033] In this embodiment, an L-shaped plate 509 fixed to the connecting rod 601 is slidably arranged at the bottom of the top plate 504. A sector gear 508 corresponding to the lower part of the L-shaped plate 509 is rotatably arranged in the connecting seat 505. Teeth 510 meshing with the sector gear 508 are fixedly arranged in sequence on the L-shaped plate 509. When the sector gear 508 rotates, the L-shaped plate 509 can be driven to move by meshing with the teeth 510.

[0034] In this embodiment, a rejection motor is fixedly arranged below one end of the rejection seat 201 corresponding to the rejection plate 203, and the output shaft of the rejection motor is fixedly connected to the rejection plate 203.

[0035] In this embodiment, two conveying rollers 7 are symmetrically and rotatably arranged in the conveying table 1 along the first direction. A conveyor belt 701 is driven between the two conveying rollers 7, and a conveying motor 702 fixed to one of the conveying rollers 7 and fixed to the side surface of the conveying table 1.

[0036] In this embodiment, the conveying table 1 is installed above the conveyor belt 701. There is a second support 8 and a monitor 801 fixed between the second support 8 and the conveyor belt 701 for taking real-time pictures of the conveyed cardboard. The monitor 801 can be used to monitor the cardboard being conveyed in real time, so as to collect the characteristics of each cardboard.

[0037] In this embodiment, a long plate 901 for guiding the cardboard and a support rod 9 for supporting the long plate 901 and fixed on the conveying table 1 are arranged below the monitor 801 on the conveying table 1. The setting of the long plate 901 can guide the corrugated cardboard conveyed on the conveyor belt 701, avoiding the corrugated cardboard deviating from the conveyor belt 701.

[0038] In this embodiment, a first support 5 is fixedly installed on the top of the collection box 4. A cylinder 501 for driving the lifting of the hanging plate 503 is fixedly installed in the first support 5. Vertical rods 502 for vertically limiting the hanging plate 503 are symmetrically and fixedly installed in the first support 5 with the cylinder 501 as the center. When the cylinder 501 is used to drive the hanging plate 503 to move up or down, the vertical rods 502 are used to vertically limit the hanging plate 503.

[0039] The implementation principle of the real-time automatic rejection device for defective corrugated cardboard in the embodiments of this application is as follows: First, the staff places the corrugated cardboard on the conveyor belt 701 and starts the conveyor motor 702 to drive one of the conveyor rollers 7. Under the action of the conveyor belt 701 driven between the two conveyor rollers 7, the conveyor belt 701 conveys the corrugated cardboard. At the same time, the long plates 901 on both sides of the conveyor belt 701 can guide the corrugated cardboard, so that the cardboard is conveyed along the trajectory of the long plates 901 into the rejection seat 201. The monitor 801 above the conveyor belt 701 can monitor and take pictures of the passing cardboard and upload it to the controller for identification and determination (since the controller is common knowledge in this field, it will not be elaborated here). When it is determined to be qualified, the cardboard can directly slide into one of the collection boxes 4 through the rejection seat 201 for temporary storage. When it is determined to be unqualified, the controller can send a signal to the rejection motor, drive the rejection plate 203 to rotate by the rejection motor, and make one end of the rejection plate 203 close to the partition plate 204. The partition plate 204 divides the rejection seat 201 into two channels. When the cardboard enters the rejection seat 201, the inclined state of the rejection plate 203 is used to divert it to the channel for unqualified products, and then it enters the unqualified collection box 4 for collection. The air cylinder 501 can drive the hanging plate 503 and the top plate 504 to make the marking mechanism enter the collection box 4. At the same time, the two compression legs 507 contact the cardboard in the collection box 4, and the two compression legs 507 rotate around the connecting seat 505 as the center and expand to both sides, which can achieve the effect of leveling the cardboard in the collection box 4. Then, the two rotating rods 506 drive the two sector gears 508 to rotate. Under the action of the rotation of the two sector gears 508, the two L-shaped plates 509 are driven to approach each other through the teeth 510. The two L-shaped plates 509 drive the two piston plates 602 to be extruded in the sealing seat 6 under the action of the two connecting rods 601, increasing the internal pressure and pushing the piston plate 603 downward to compress the return spring 604. The piston plate 603 drives the marking plate 606 to move downward through the push rod 605 to contact the cardboard, and then completes the marking work on the cardboard, so that when dealing with defective corrugated cardboard later, it can be easily traced back to its production batch and other situations, improving work efficiency. When the position of the piston plate 603 is lower than the exhaust pipe 607, due to the one-way valve function of the air valve 608, the gas in the sealing seat 6 is discharged through the exhaust pipe 607, reducing the pressure in the sealing seat 6. At the same time, the return spring 604 releases its elastic force to drive the piston plate 603 to return to its original position.

[0040] All the structures in this application can be selected for their materials and lengths according to the actual usage situation. The attached drawings are all schematic structural diagrams, and the specific actual dimensions can be adjusted appropriately.

[0041] Parts not involved in the present invention are the same as or can be implemented by using the prior art. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic real-time rejection device for defective corrugated cardboard, characterized in that, Including: A conveying table, and an opening for guiding materials arranged along the first direction of the conveying table; A rejecting mechanism, including a rejecting seat fixedly arranged obliquely at the opening, a rejecting plate rotatably arranged on the rejecting seat, a partition plate for separating and rejecting fixedly arranged at the center corresponding to the first direction on the rejecting seat, and a notch for accommodating the rejecting plate arranged on the rejecting seat; A bottom plate, fixedly arranged below the rejecting seat, two collecting boxes fixedly arranged corresponding to the inclined end of the rejecting seat on the bottom plate, a liftable hanging plate arranged above the collecting box in the first direction, a top plate installed at the feeding place of the collecting box at the bottom of the hanging plate, a sealing seat fixedly installed at the bottom of the top plate, a marking plate slidably arranged at the bottom of the sealing seat, and a piston assembly for driving the marking plate to move and mark; A flattening mechanism, including a connecting seat installed at the bottom of the top plate, and compression legs rotatably arranged on the connecting seat and used for flattening defective corrugated cardboard below the piston assembly. Connecting rings are fixedly arranged on one side of the two compression legs facing each other, and a tension spring for resetting the compression legs is connected between the two connecting rings.

2. The real-time automatic rejection device for defective corrugated cardboard according to claim 1, characterized in that, The piston assembly includes connecting rods slidably arranged from the side of the sealing seat towards the two connecting seats, piston plates I slidably arranged on the inner wall of the sealing seat at one end of the two connecting rods facing each other, a piston plate II slidably arranged vertically downward on the inner wall of the sealing seat, and a push rod fixedly arranged at the bottom of the piston plate II and fixedly connected with the marking plate.

3. The real-time automatic rejection device for defective corrugated cardboard according to claim 1, characterized in that, An exhaust pipe is arranged on the outer peripheral wall of the sealing seat, and a gas valve for controlling air is arranged on the exhaust pipe.

4. The real-time automatic rejection device for defective corrugated cardboard according to claim 2, characterized in that, An L-shaped plate fixed to the connecting rod is slidably arranged at the bottom of the top plate, a sector gear corresponding to the lower part of the L-shaped plate is rotatably arranged in the connecting seat, and teeth meshing with the sector gear are fixedly arranged in sequence on the L-shaped plate.

5. The real-time automatic rejection device for defective corrugated cardboard according to claim 1, characterized in that, A rejecting motor is fixedly arranged below one end of the rejecting seat corresponding to the rejecting plate, and the output shaft of the rejecting motor is fixedly connected with the rejecting plate.

6. The real-time automatic rejection device for defective corrugated cardboard according to claim 1, wherein Two conveying rollers are symmetrically and rotatably arranged in the conveying table along the first direction, a conveyor belt is driven between the two conveying rollers, and a conveying motor fixed to the side of the conveying table and fixedly connected with one of the conveying rollers.

7. The real-time automatic rejection device for defective corrugated cardboard according to claim 6, characterized in that, The conveying table is erected above the conveyor belt with a support II and a monitor fixedly arranged between the support II and the conveyor belt for real-time photographing of the conveyed cardboard.

8. The real-time automatic rejection device for defective corrugated cardboard according to claim 7, characterized in that, Long plates for guiding the cardboard are arranged below the monitor on the conveying table, and support rods for supporting the long plates and fixedly arranged on the conveying table.

9. The real-time automatic rejection device for defective corrugated cardboard according to claim 1, characterized in that, A support I is fixedly installed at the top of the collecting box, and a cylinder for driving the hanging plate to lift is fixedly arranged in the support I.

10. The real-time automatic rejection device for defective corrugated cardboard according to claim 9, characterized in that, Vertical rods for vertically limiting the hanging plate are symmetrically fixedly arranged in the support I with the cylinder as the center.

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