A production line for forming I-beams and a folding method

Abstract

This invention relates to the field of cardboard folding production lines, and particularly to an I-beam cardboard forming production line, comprising a cardboard conveyor belt for transporting cardboard, a connecting plate, a lower pressure plate, baffles, partitions, and a side pressing mechanism. The cardboard has slits on both sides. The connecting plate is located at the end of the cardboard conveyor belt and has perforations. A rotating roller is located at the top of the baffles, and two baffles are positioned below the perforations. Two lower pressure plates are positioned above the perforations and can move up and down between the two baffles through the perforations. The two lower pressure plates press the cardboard down into the perforations and fold the left and right sides of the cardboard upwards along the rotating rollers to form an I-beam shape between the two baffles. The side pressing mechanism includes a side pressing assembly, a rotating rod, and rollers. The rotating rod is positioned between the two baffles, and the rollers are located on the side pressing assembly. The rotating rod drives the side pressing assembly to rotate, causing the rollers to sequentially contact and press down on the cardboard, folding the front and rear sides of the cardboard downwards along the slits to form an I-beam cardboard.

Description

Technical Field

[0001] This invention relates to the field of cardboard folding production lines, and particularly to an I-beam cardboard forming production line and folding method. Background Technology

[0002] In the cardboard packaging industry, upright shaped cardboard is often added to cardboard boxes to divide space and enhance their compressive strength. For example, the I-beam cardboard involved in this invention divides the cardboard box into two sections, left and right.

[0003] Before forming, the I-beam board is a flat H-shaped sheet of paper with symmetrical cuts on both sides when laid flat. The process of forming the flat H-shaped sheet and packing the formed I-beam board into cartons was originally done manually, consuming a significant amount of labor. Because the formed I-beam board is quite large, stacking it requires considerable space, and the board has a certain amount of springback after forming, making it unsuitable for direct use in automated assembly after stacking. Therefore, it is not appropriate to pre-form and stack large quantities of the board for later use. Thus, a forming production line that can automatically fold the board and place the folded board into cartons is needed. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides an I-beam forming production line and folding method that can automatically fold and pack I-beam paperboard.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an I-beam paperboard forming production line, including a paperboard conveyor belt for transporting paperboard, and also including a connecting plate, a lower pressure plate, a baffle, a partition, and a side pressure mechanism. The paperboard has slits on both sides, and the connecting plate is located at the end of the paperboard conveyor belt, with a perforation along the middle of the connecting plate.

[0006] Two sets of baffles are provided, each with a rotating roller at its top. The two baffles are mounted below the perforation and positioned at the edges of the perforation on both sides, so that the rotating rollers of the two baffles are located inside the perforation. Two lower pressure plates are provided, mounted above the perforation and movable up and down between the two baffles through the perforation. The two lower pressure plates are used to press the cardboard down along the rotating roller into the perforation and fold the left and right sides of the cardboard upward to form it between the two baffles. A partition is movably inserted between the two baffles, allowing the lower pressure plates to press the cardboard down until it abuts against the partition.

[0007] The side-pressing mechanism is provided in two sets. The side-pressing mechanism includes a side-pressing component, a rotating rod, and several rollers. The rotating rod is mounted between two baffles. The side-pressing component is composed of two triangular plates spliced ​​together. The rollers are located at the adjacent apex of the triangular plates and are sandwiched between the two triangular plates. One end of each triangular plate is sleeved on the rotating rod. The rotating rod drives the triangular plates on both sides to rotate, so that the rollers at the apex of the triangular plates contact the cardboard in sequence and press down, and fold the front and rear sides of the cardboard downward along the cut to form an I-shaped cardboard.

[0008] Furthermore, the lower pressure plate is L-shaped, and a fixing rod is provided between the two lower pressure plates. The fixing rod is located in the middle of the lower pressure plate and corresponds vertically to the position of the partition plate.

[0009] Furthermore, the lower pressure plate is provided with two sliding cylinders. One sliding cylinder is located inside the lower pressure plate and is used to drive the lower pressure plate to move until the fixed rod contacts the top of the partition. The other sliding cylinder is located on the first sliding cylinder and is used to drive the lower pressure plate to move downwards towards the partition.

[0010] Furthermore, the side pressing assembly is provided in two sets, with the two side pressing assemblies spaced apart, and the distance between the two side pressing assemblies is less than the distance between the two baffles. The distance between the two lower pressing plates is less than the distance between the two baffles, and the distance between the two lower pressing plates and the two baffles has a gap that can accommodate the thickness of the cardboard.

[0011] Furthermore, the side-pressure mechanism also includes a drive rod and a side-pressure cylinder. The drive rod is connected to one end of the rotating rod, and the side-pressure cylinder is connected to the drive rod, so that the drive rod drives the rotating rod to rotate.

[0012] Furthermore, the bottom of the baffle is provided with an elongated notch extending upward at the middle position along the width direction, and the partition can be inserted between the two baffles through the elongated notch.

[0013] Furthermore, a push-pull cylinder is provided at one end of the partition, which changes the partition between the elongated notch inserted into the two baffles and the withdrawn state.

[0014] Furthermore, it also includes a cardboard stacking position, which is located at the initial end of the cardboard conveyor belt. The cardboard stacking position includes two support plates and a support rod. The two support plates are mounted on the cardboard conveyor belt, and the support rod is located between the two support plates and connected to the two support plates, so that the cardboard is stacked on the support rod and is inclined downward toward the cardboard conveyor belt and in contact with the conveying surface of the cardboard conveyor belt.

[0015] Furthermore, it also includes a number of pressure rollers, which are arranged in two rows and mounted above the cardboard conveyor belt, so that the cardboard is clamped between the pressure rollers and the cardboard conveyor belt during the conveying process.

[0016] A folding method, comprising:

[0017] Step 1: The cardboard conveyor belt transports the cardboard pieces to be folded and laid flat towards the connecting plate one by one, and the front section of the cardboard is transported to the connecting plate.

[0018] Step 2: With the partition in the long notch inserted into the two baffles, activate the two lower pressure plates to move towards the perforation direction and press the cardboard into the perforation between the two baffles. Position the cardboard on the partition so that it is sandwiched between the lower pressure plate and the partition. Since the two baffles are equipped with rotating rollers at the top, the cardboard folds upward along the rotating rollers on both sides as it is pressed down through the perforation. The cardboard on both sides that folds upward is sandwiched between the two lower pressure plates and the two baffles.

[0019] Step 3: At this point, the cardboard is positioned on the partition. Simultaneously, the drive rods on the front and rear sides of the two baffles are driven. The drive rods drive the rotating rod to rotate, and drive the side pressure assembly to rotate around the rotating rod. This causes the triangular plate to rotate downwards from the top surface of the cardboard. The roller at the lower corner of the triangular plate first contacts the front and rear sides of the cardboard and presses it down. Then, the upper roller contacts the cardboard to continue pressing it down until the front and rear sides of the cardboard are completely folded down along the cut, forming an I-shaped cardboard.

[0020] Step 4: Pull the partition out from the long notch, and let the two pressure plates continue to move downwards to press the I-shaped cardboard into the carton to be packed from under the two baffles.

[0021] As can be seen from the above description of the present invention, compared with the prior art, the present invention provides an I-shaped cardboard forming production line. The cardboard conveyor belt is used to transport the cardboard; the connecting plate is used to hold the cardboard on the connecting plate, and the perforations on the connecting plate allow the cardboard to pass through the perforations; the lower pressure plate and baffles are used to press the cardboard downwards by the lower pressure plate, and cooperate with the perforations to press the cardboard into the perforations, then into the space between the two baffles, allowing the left and right sides of the cardboard to fold upwards and be secured between the two baffles; the rotating rollers are used so that during the process of the cardboard being pressed into the perforations by the lower pressure plate and entering the space between the two baffles, the left and right sides of the cardboard can rotate along the top of the two baffles. The roller folds upwards; the partition serves to separate the cardboard when inserted into the long notch, and when pulled out, it presses the cardboard into the carton, allowing a pre-folded I-shaped cardboard to be pressed into a corresponding carton; the side-pressing mechanism on the front and rear sides of the two baffles presses the cardboard downwards to complete the folding; the side-pressing mechanism uses a triangular plate connection, with rollers at the apex of the triangular plate, so that the rollers contact the cardboard sequentially as the side-pressing mechanism rotates and press down, folding the cardboard downwards on both sides to form an I-shaped cardboard. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an I-beam type paperboard production line according to the present invention.

[0023] Figure 2 This is a half-sectional structural diagram of the paperboard of the present invention pressed down to the partition.

[0024] Figure 3 This is a half-sectional structural diagram of the side-pressing mechanism of the present invention in the state of pressing down the cardboard.

[0025] Figure 4 This is a half-sectional structural diagram of the cardboard box in the present invention.

[0026] Figure 5 This is a cross-sectional structural diagram showing the connection between the pressure plate and the baffle in this invention.

[0027] The corresponding labels in the diagram are as follows: 1. Cardboard conveyor belt; 11. Cardboard; 111. Cut; 112. I-beam cardboard; 12. Cardboard placement position; 121. Support plate; 122. Support rod; 13. Pressure roller; 2. Connecting plate; 21. Perforation; 3. Lower pressure plate; 31. Fixing rod; 32. Slide cylinder; 4. Baffle; 41. Long notch; 42. Rotating roller; 5. Partition; 51. Push-pull cylinder; 6. Side pressure mechanism; 61. Side pressure assembly; 611. Triangular plate; 62. Rotating rod; 63. Roller; 64. Drive rod; 65. Side pressure cylinder; 7. Carton; 71. Carton conveyor belt Detailed Implementation

[0028] The present invention will be further described below through specific embodiments.

[0029] Reference Figures 1 to 5 The diagram shows an I-beam cardboard forming production line, which includes a cardboard conveyor belt 1, a connecting plate 2, a lower pressure plate 3, a baffle 4, a partition 5, a side pressure mechanism 6, and a carton 7.

[0030] The cardboard conveyor belt 1 is mounted on the frame and is used to transport cardboard 11 to be folded. At this time, the cardboard 11 is in a flat state, and there are slits 111 on both sides of the cardboard 11. It is stacked in the cardboard 11 stacking position 12. The cardboard 11 stacking position is located at the initial end of the cardboard conveyor belt 1. The cardboard 11 stacking position 12 includes two support plates 121 and a support rod 122. The two support plates 121 are mounted on the cardboard conveyor belt 1, and there is a gap between the support plates 121 and the conveyor belt that allows only one piece of cardboard 11 to pass through. The support rod 122 is located between the two support plates 121 and connected to the two support plates 121, so that the cardboard 11 is stacked on the support rod 122 and is inclined downward towards the cardboard conveyor belt 1 and in contact with the conveying surface of the cardboard conveyor belt 1, so that the cardboard 11 is transported one by one towards the connecting plate 2.

[0031] The connecting plate 2 is fixedly installed at the end of the cardboard conveyor belt 1, and a through hole 21 is opened along the middle position of the connecting plate 2. The position of the through hole 21 corresponds to the center position of the cardboard conveyor belt 1, and the length of the through hole 21 is exactly the size of the distance between the two cuts 111 on the cardboard 11. Two sets of baffles 4 are provided. The top of the baffles 4 is provided with a rotating roller 42. The two baffles 4 are mounted below the through hole 21, and the two baffles 4 are respectively located at the two sides of the through hole 21, so that the rotating roller 42 of the two baffles 4 is located inside the through hole 21. The function of setting the rotating roller 42 is to allow the cardboard 11 to be pressed into the through hole 21 and enter between the two baffles 4 by the lower pressure plate 3. During this process, the left and right sides of the cardboard 11 can be folded upward along the rolling of the rotating roller 42 at the top of the two baffles 4. The rotating roller 42 also prevents the cardboard 11 from being cut or damaged by the edges of the baffles 4 during the pressing process.

[0032] Two lower pressure plates 3 are provided, and the lower pressure plates 3 are arranged in an "L" shape. A fixing rod 31 is provided between the two lower pressure plates 3. The fixing rod 31 is located in the middle of the lower pressure plate 3 and corresponds vertically to the position of the partition plate 5. The two lower pressure plates 3 are mounted above the perforation 21 and can move up and down between the two baffles 4 through the perforation 21. The two lower pressure plates 3 are used to press the cardboard 11 down along the rotating roller 42 into the perforation 21 and into the space between the two baffles 4, so that the left and right sides of the cardboard 11 are folded upward to form two... Between the baffles 4, the distance between the two lower pressure plates 3 is smaller than the distance between the two baffles 4, and the distance between the two lower pressure plates 3 and the two baffles 4 has a gap that can only accommodate the thickness of the cardboard 11, so that the cardboard 11 can be better secured in the gap between the lower pressure plates 3 and the baffles 4; the lower pressure plate 3 is provided with two sliding cylinders 32, one of which is located inside the lower pressure plate 3 and is used to drive the lower pressure plate 3 to move until the fixed rod 31 contacts the top of the partition 5, and the other sliding cylinder 32 is located on the first sliding cylinder 32 and is used to drive the lower pressure plate 3 to move downwards towards the two baffles 4.

[0033] The partition 5 is movable and passes through the two baffles. The bottom of the baffle 4 has an elongated notch 41 extending upward along the middle of its width direction. The partition 5 can be inserted between the two baffles through the elongated notch 41. One end of the partition 5 is equipped with a push-pull cylinder 51, which changes the state of the partition 5 between being inserted into the elongated notch 41 of the two baffles and being pulled out. When the partition 5 is inserted between the two baffles through the elongated notch 41, the partition 5 prevents the cardboard 11 from falling when it is between the two baffles. It also allows the partition 5 to act as a support point when the cardboard 11 is sandwiched between the partition 5 and the fixing rod 31 of the lower pressure plate 3, so that the cardboard 11 can be folded back and forth. When the partition 5 is pulled out, the lower pressure plate 3 can press the cardboard 11 into the carton 7.

[0034] Two sets of side-pressing mechanisms 6 are provided, respectively located on the front and rear sides of the two baffles 4, controlling the front and rear sides of the folded cardboard 11. The side-pressing mechanism 6 includes a side-pressing assembly 61, a rotating rod 62, several rollers 63, a drive rod 64, and a side-pressing cylinder 65. The rotating rod 62 is mounted between the two baffles 4, the drive rod 64 is connected to one end of the rotating rod 62, and the side-pressing cylinder 65 is connected to the drive rod 64, causing the drive rod 64 to drive the rotating rod 62 to rotate. The side-pressing assembly 61 is constructed by splicing two triangular plates 611, and the rollers 63 are located on the triangular plates 611. At adjacent apex corners, and sandwiched between two triangular plates 611, rollers 63 are installed at two of the three apex corners of the triangular plates 611, with one roller 63 installed at one apex corner and two rollers 63 arranged in a row at another apex corner. The remaining apex corner is fitted onto a rotating rod. That is, one end of the two triangular plates 611 is fitted onto a rotating rod 62. The rotating rod 62 drives the two triangular plates 611 to rotate, so that the rollers 63 at the apex corners of the two triangular plates 611 successively contact and press down on the cardboard 11 through the rotation position, and fold the front and rear sides of the cardboard 11 downward along the cut 111 to form an I-shaped cardboard 112; the two triangular plates 611 are configured to clamp the rollers 63. The function is to allow the roller 63 on the top corner of the cardboard 11 to roll down along the cardboard 11 by rotating the triangular plate 611. As the rotating rod 62 rotates, the roller 63 on the other top corner also contacts the cardboard 11 and continues to roll down, thereby completing the downward folding of the front and rear sides of the cardboard 11. The two side pressing components 61 are spaced apart, and the distance between the two side pressing components 61 is less than the distance between the two baffles 4, so that the side pressing components 61 have sufficient rotation space.

[0035] The pressure rollers 13 are provided in several rows and are mounted on the cardboard conveyor belt 1. The cardboard 11 is clamped between the pressure rollers 13 and the cardboard conveyor belt 1 during the conveying process. The pressure rollers 13 press down on both sides of the cardboard 11 during the conveying process, which can prevent the cardboard 11 from curling up.

[0036] The working principle of this type of I-beam cardboard forming production line and folding method is as follows:

[0037] Step 1: The cardboard 11 to be folded and laid flat is conveyed one by one towards the connecting plate 2 on the cardboard conveyor belt 1, and the front section of the cardboard 11 is conveyed onto the connecting plate 2.

[0038] Step 2: With the partition 5 in the state of being inserted into the elongated notch 41 of the two baffles 4, activate the two lower pressure plates 3, allowing the lower pressure plates 3 to move towards the perforation 21 and press the cardboard 11 into the perforation 21 between the two baffles 4, and position the cardboard 11 on the partition 5, so that it is sandwiched between the lower pressure plate 3 and the partition 5. Since the top of the two baffles 4 is equipped with a rotating roller 42, the left and right sides of the cardboard 11 are folded upward along the rotating roller 42 during the process of pressing down through the perforation 21, and the cardboard 11 on the left and right sides that are folded upward is sandwiched between the two lower pressure plates 3 and the two baffles 4.

[0039] Step 3: At this time, the cardboard 11 is positioned on the partition 5. At the same time, the drive rods 64 on the front and rear sides of the two baffles 4 are driven. The drive rods 64 drive the rotating rod 62 to rotate, and drive the side pressing component 61 to rotate around the rotating rod 62. The triangular plate 611 rotates from the top surface of the cardboard 11 downwards, and the rollers 63 at the lower corners of the two triangular plates 611 first contact the front and rear sides of the cardboard 11 and press it down. Then the upper rollers 63 contact the cardboard 11 to continue pressing it down until the front and rear sides of the cardboard 11 are completely folded down along the cut 111, forming an I-shaped cardboard 112.

[0040] Step 4: Pull the partition 5 out from the long notch 41, so that the partition 5 is in the pulled-out state. Let the two pressure plates 3 continue to move downwards, and press the I-shaped cardboard 112 from under the two baffles 4 into the carton 7 to be packed. The carton 7 to be packed is placed on the carton conveyor belt 71. Each folded I-shaped cardboard 112 is placed into a corresponding carton 7.

[0041] Step 5: After the box is packed, the two pressure plates 3 return to their initial positions and wait for the next cardboard 11 to be conveyed to the connecting plate 2. Insert the partition 5 into the long notch 41 of the two baffles 4, and then repeat the following steps.

[0042] The above is only one specific embodiment of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing the protection scope of the present invention.

Claims

1. A production line for forming I-beam type cardboard, comprising a cardboard conveyor belt for transporting cardboard, characterized in that: It also includes a connecting plate, a lower pressure plate, a baffle, a partition, and a side pressure mechanism. The cardboard has slits on both sides. The connecting plate is located at the end of the cardboard conveyor belt and has a perforation along the middle of the connecting plate. Two sets of baffles are provided, each with a rotating roller at its top. The two baffles are mounted below the perforation and positioned at the edges of the perforation on both sides, so that the rotating rollers of the two baffles are located inside the perforation. Two lower pressure plates are provided, mounted above the perforation and movable up and down between the two baffles through the perforation. The two lower pressure plates are used to press the cardboard down along the rotating roller into the perforation and fold the left and right sides of the cardboard upward to form it between the two baffles. A partition is movably inserted between the two baffles, allowing the lower pressure plates to press the cardboard down until it abuts against the partition. The side-pressing mechanism is provided in two sets. The side-pressing mechanism includes a side-pressing component, a rotating rod and several rollers. The rotating rod is mounted between two baffles. The side-pressing component is made of two triangular plates spliced ​​together. The rollers are located at the adjacent apex of the triangular plates and are sandwiched between the two triangular plates. One end of the two triangular plates is sleeved on the rotating rod. The rotating rod drives the two triangular plates to rotate, so that the rollers at the apex of the triangular plates contact the cardboard in sequence and press down, and fold the front and rear sides of the cardboard downward along the cut to form an I-shaped cardboard. The bottom of the baffle has an elongated notch extending upwards at the middle of its width direction. The partition can be inserted between the two baffles through the elongated notch. One end of the partition is equipped with a push-pull cylinder, which changes the state of the partition between the elongated notch inserted in the two baffles and the state of being pulled out.

2. The I-beam type cardboard forming production line according to claim 1, characterized in that: The lower pressure plate is L-shaped, and a fixing rod is provided between the two lower pressure plates. The fixing rod is located in the middle of the lower pressure plate and corresponds vertically to the position of the partition plate.

3. The I-beam paperboard forming production line according to claim 2, characterized in that: The lower pressure plate is equipped with two sliding cylinders. One sliding cylinder is located inside the lower pressure plate and is used to drive the lower pressure plate to move until the fixed rod contacts the top of the partition. The other sliding cylinder is located on the first sliding cylinder and is used to drive the lower pressure plate to move downwards towards the partition.

4. The I-beam type cardboard forming production line according to claim 1, characterized in that: The side pressing assembly is provided in two sets, with the two side pressing assemblies spaced apart. The distance between the two side pressing assemblies is less than the distance between the two baffles. The distance between the two lower pressing plates is less than the distance between the two baffles. The distance between the two lower pressing plates and the two baffles has a gap that can accommodate the thickness of the cardboard.

5. The I-beam type cardboard forming production line according to claim 1, characterized in that: The side-pressure mechanism also includes a drive rod and a side-pressure cylinder. The drive rod is connected to one end of the rotating rod, and the side-pressure cylinder is connected to the drive rod, so that the drive rod drives the rotating rod to rotate.

6. The I-beam paperboard forming production line according to claim 1, characterized in that: It also includes a cardboard stacking position, which is located at the initial end of the cardboard conveyor belt. The cardboard stacking position includes two support plates and a support rod. The two support plates are mounted on the cardboard conveyor belt, and the support rod is located between the two support plates and connected to the two support plates, so that the cardboard is stacked on the support rod and is inclined downward toward the cardboard conveyor belt and in contact with the conveying surface of the cardboard conveyor belt.

7. The I-beam type cardboard forming production line according to claim 1, characterized in that: It also includes a number of pressure rollers, which are arranged in two rows and mounted above the cardboard conveyor belt, so that the cardboard is clamped between the pressure rollers and the cardboard conveyor belt during the conveying process.

8. A folding method, based on the I-beam cardboard forming production line according to any one of claims 1-7, characterized in that: Step 1: The cardboard conveyor belt transports the cardboard pieces to be folded and laid flat towards the connecting plate one by one, and the front section of the cardboard is transported to the connecting plate. Step 2: With the partition in the long notch inserted into the two baffles, activate the two lower pressure plates to move towards the perforation direction and press the cardboard into the perforation between the two baffles. Position the cardboard on the partition so that it is sandwiched between the lower pressure plate and the partition. Since the two baffles are equipped with rotating rollers at the top, the left and right sides of the cardboard fold upward along the rotating rollers during the process of pressing the cardboard through the perforation. The cardboard on the left and right sides that fold upward are sandwiched between the two lower pressure plates and the two baffles. Step 3: At this point, the cardboard is positioned on the partition. Simultaneously, the drive rods on the front and rear sides of the two baffles are driven. The drive rods drive the rotating rod to rotate, and the side pressure assembly rotates around the rotating rod. This causes the triangular plate to rotate downwards from the top surface of the cardboard. The roller at the lower corner of the triangular plate first contacts the front and rear sides of the cardboard and presses it down along the cut. Then, the upper roller contacts the cardboard and continues to press it down until the front and rear sides of the cardboard are completely folded down along the cut, forming an I-shaped cardboard. Step 4: Pull the partition out from the long notch, so that the partition is in the pulled-out state. Let the two pressure plates continue to move downwards and press the I-shaped cardboard into the carton to be packed from under the two baffles. Step 5: After the box is packed, the two pressure plates return to their initial positions and wait for the next cardboard to be conveyed to the connecting plate. Insert the partition into the long notch of the two baffles, and then repeat the above steps.

Images