Packing box paperboard folding device

Abstract

The utility model discloses a packaging box paperboard folding device which can efficiently and accurately complete folding operation of packaging box paperboards and can adapt to paperboards of various sizes. Comprising a conveying mechanism for horizontally conveying paperboards, the conveying mechanism comprises a bearing table and a positioning table, the bearing table and the positioning table are arranged in a spaced mode, an undercutting channel is arranged between the bearing table and the positioning table, a movably-lifting underpressing plate frame is arranged above the undercutting channel, and the underpressing plate frame movably lifts in the thickness direction of the paperboards; the downward pressing plate frame is matched with the downward cutting channel so as to descend and press the folding position of the paperboard into the downward cutting channel and enable the paperboard to be folded along the folding position. Packing box paperboards are conveyed to the upper surfaces of the bearing table, the positioning table and the undercutting channel through the conveying mechanism, the rear underpressing plate frame rapidly falls down to press the paperboards in and fold the paperboards to enter the undercutting channel, then the paperboards are conveyed out through the output mechanism, automatic paperboard folding operation is achieved, the whole operation process is simple, the requirement for skills of operators is lowered, and the production efficiency is improved. And the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging boxes, in particular to a packaging box paperboard folding device. Background Art

[0002] In the packaging industry, cardboard packaging boxes are widely used due to their environmental protection, low cost and easy processing. However, for larger cardboard, in order to reduce the occupied area, save storage space and reduce transportation costs, it is usually necessary to fold it into a smaller size. In addition, in some packaging box production processes, in order to improve the efficiency and quality of subsequent molding processes, it is also necessary to pre-fold the cardboard in advance.

[0003] At present, there are two main cardboard folding methods on the market: manual folding and simple mechanical folding. Although manual folding is highly flexible, its production efficiency is low and consistency is difficult to ensure; and the existing mechanical folding devices often have limited application scopes. Most devices can only handle cardboard of a specific size and cannot meet the needs of products of different specifications. There are also some complex and advanced equipment that can achieve high-precision folding, but the operation process is cumbersome and requires professional technicians to complete. In addition, high-end automatic folding equipment is expensive and has relatively high maintenance costs, which is a considerable expense for small and medium-sized enterprises. Summary of the invention

[0004] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a packaging box cardboard folding device, which can efficiently and accurately complete the packaging box cardboard folding operation and can adapt to cardboards of various sizes.

[0005] The technical solution of the utility model comprises a transport mechanism for horizontally transporting cardboard, the transport mechanism comprises a receiving platform at the upstream of the transport and a positioning platform at the downstream of the transport, the receiving platform and the positioning platform are arranged at intervals and a lower cutting channel is arranged between the two, a movable lifting lower pressing plate frame is arranged above the lower cutting channel, the lower pressing plate frame is movable and lifted along the thickness direction of the cardboard, the lower pressing plate frame cooperates with the lower cutting channel to lower and press the folding position of the cardboard into the lower cutting channel and fold the cardboard along the folding position; an output mechanism is also installed below the lower cutting channel, and the output mechanism is located on the descending stroke of the lower pressing plate frame to deliver the folded cardboard.

[0006] By adopting the above technical scheme, the packaging box cardboard is transported to the upper surface of the receiving table, the positioning table and the lower cutting channel through the transportation mechanism, and the lower pressure plate frame falls down quickly to press the cardboard into and fold it into the lower cutting channel, and then it is sent out by the output mechanism, thereby realizing the automatic cardboard folding operation. The whole operation process is simple, the requirements for the operator's skills are reduced, and the production efficiency is improved. Moreover, compared with high-end automatic folding equipment, the folding device of the utility model has a simple structural design, lower cost, simpler maintenance, and is more suitable for use by small and medium-sized enterprises.

[0007] In a possible design, a first positioning plate and a second positioning plate are provided on the positioning table, the first positioning plate and the second positioning plate are arranged perpendicularly to each other and form a right-angle corner position therebetween; a plurality of angled rollers are also provided on the positioning table, and the axial directions of the angled rollers are arranged obliquely to the first positioning plate and the second positioning plate respectively to guide one of the top corners of the paperboard to align into the right-angle corner position.

[0008] With the above design, the operation of the angled roller can drive the cardboard to translate along the first positioning plate and the second positioning plate, guide the two right-angled sides of the cardboard to gradually approach the first positioning plate and the second positioning plate, and help the top angle formed by the two right-angled sides of the cardboard to smoothly guide to the right-angle corner position, thereby realizing automatic alignment operation of the cardboard, avoiding deviation of the cardboard during the folding process, ensuring the accuracy of the folding position, and improving the folding accuracy.

[0009] In one possible design, an adjusting bolt is provided on the second positioning plate, a positioning block is installed at the bottom end of the adjusting bolt, and an adjusting long groove arranged perpendicular to the second positioning plate is opened on the positioning platform. The positioning block can be moved in the adjusting long groove and the position of the positioning block is fixed by tightening the adjusting bolt.

[0010] With the above design, the position of the second positioning plate can be adjusted according to the cardboards at different folding positions by adjusting the combination of the bolts and the positioning block, thereby meeting the folding requirements of cardboards of various specifications, improving the flexibility of the device and expanding the scope of application.

[0011] In a possible design, a plurality of parallel rollers and a plurality of vertical rollers are further provided on the positioning platform. The axial directions of the parallel rollers are arranged parallel to the first positioning plate, and the axial directions of the vertical rollers are arranged perpendicular to the first positioning plate.

[0012] With the above design, when the parallel rollers are in operation, the cardboard is driven close to the first positioning plate, and when the vertical rollers are in operation, the cardboard is driven close to the second positioning plate. The cooperation of the two can assist the guiding role of the angled rollers, so that the cardboard can be positioned quickly and accurately, especially for cardboard with larger size and format, thereby enhancing the versatility and adaptability of the device.

[0013] In a possible design, arc chamfers are provided on both sides of the channel inlet of the undercut channel, and the arc chamfers on both sides form a shape with gradually decreasing spacing.

[0014] With the above design, the arc chamfer design reduces the contact of sharp angles, avoids unnecessary damage to the cardboard during the folding process, especially the folded part, ensures a smooth transition of the cardboard when entering the lower cutting channel, reduces the friction between the cardboard and the channel wall, avoids the cardboard from getting stuck, and at the same time, helps to guide the cardboard accurately into the predetermined folding position to ensure the accuracy of the folding.

[0015] In a possible design, the output mechanism includes a plurality of output rollers, the axial direction of the output rollers is arranged along the descending direction of the lower plate frame, and the plurality of output rollers are arranged on both sides of the outlet of the lower cutting channel.

[0016] With the above design, the folded cardboard can be quickly sent out from the lower cutting channel through the conveyance of the output roller. The output roller can smoothly send the folded cardboard out from the lower cutting channel, ensuring that the cardboard can smoothly transition to the next process after being folded, so that continuous cardboard folding operations can be performed, improving the overall production effect; in addition, the output rollers on both sides contact the two surfaces of the cardboard respectively, which helps to reduce jamming, reduce friction and damage to the cardboard during the delivery process, and maintain the integrity and appearance quality of the cardboard.

[0017] In a possible design, the diameter of the output roller increases gradually along the descending direction of the lower platen frame.

[0018] By adopting the above design, the distance between the output rollers on both sides is gradually reduced, and the lower pressure plate frame can pre-adjust the amount of descending stroke to adapt to cardboards with different thicknesses. In addition, the pressure of the output rollers on the cardboard on both sides gradually increases with the descending movement, so that the cardboard gradually forms an effective fold, which helps to improve the quality of the fold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the paperboard of the utility model when it is positioned;

[0021] Figure 3 This is a schematic diagram of the structure of the utility model when the paperboard is folded in half;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the paperboard of the utility model when it is folded in half;

[0023] Figure 5 For this utility model Figure 4 A partial enlarged view of the middle A;

[0024] Among them, 1. transport mechanism; 11. receiving platform; 12. positioning platform; 13. lower cutting channel; 2. cardboard; 3. lower pressure plate frame; 4. output mechanism; 121. first positioning plate; 122. second positioning plate; 123. adjusting bolt; 124. positioning block; 125. adjusting long groove; 14. angled roller; 15. parallel roller; 16. vertical roller; 131. arc chamfer; 41. output roller. DETAILED DESCRIPTION

[0025] like Figure 1-4 The illustrated packaging box cardboard folding device comprises a transport mechanism 1 for horizontally transporting cardboard 2, wherein the transport mechanism 1 comprises a receiving platform 11 and a positioning platform 12, wherein the receiving platform 11 is located upstream of the transport and is used to receive the cardboard 2 to be folded, and the positioning platform 12 is located downstream of the transport and is used to position the cardboard 2 before folding. The receiving platform 11 and the positioning platform 12 are arranged at intervals to form a spacing between the two, and the spacing is a lower cutting channel 13, and the lower cutting channel 13 is used to guide the determination of the folding position of the cardboard 2. A movable lifting lower pressing plate frame 3 is arranged above the lower cutting channel 13, and the lower pressing plate frame 3 is in the shape of a flat plate, and the lower pressing plate frame 3 is movable and lifted along the thickness direction of the cardboard 2 on the transport mechanism 1, and the lower pressing plate frame 3 cooperates with the lower cutting channel 13 to lower and press the folding position of the cardboard 2 into the lower cutting channel 13 and fold the cardboard 2 along the folding position; an output mechanism 4 is also installed below the lower cutting channel 13, and the output mechanism 4 is located on the descending stroke of the lower pressing plate frame 3 to deliver the folded cardboard 2. The cardboard 2 is first placed on the receiving platform 11 of the transport mechanism 1, and is sent to the positioning platform 12 by the receiving platform 11; the positioning platform 12 positions the cardboard 2 so that the position of the cardboard 2 to be folded is directly above the lower cutting channel 13; the lower pressing plate frame 3 is operated, and the lower pressing plate frame 3 gradually moves downward from the original rising state, and the lower pressing plate frame 3 directly contacts the folded position of the cardboard 2, and then the folded position of the cardboard 2 is gradually pressed into the lower cutting channel 13; as the lower pressing plate frame 3 moves downward, the two outer sides of the cardboard 2 are gradually turned up, and the folded position of the cardboard 2 gradually falls into the lower cutting channel 13, until the cardboard 2 covers the two side surfaces of the lower pressing plate frame 3, and the two sides of the lower cutting channel 13 cover the cardboard 2, and the cardboard 2 is folded; the folded cardboard 2 is sent out by the output mechanism 4 in the output mechanism 4 to enter the next process.

[0026] The positioning platform 12 is provided with a first positioning plate 121 and a second positioning plate 122, which are arranged perpendicularly to each other and form a right angle corner position between the first positioning plate 121 and the second positioning plate 122; the positioning platform 12 is also provided with a plurality of bevel rollers 14, the axial directions of the bevel rollers 14 are arranged obliquely to the first positioning plate 121 and the second positioning plate 122, respectively, and the inclination angles are 45 degrees, respectively, so as to guide one of the top corners of the paperboard 2 to align and enter the right angle corner position. The paperboard 2 is usually in the shape of a rectangular flat plate and must have a right angle top angle. When the bevel rollers 14 are in operation, the paperboard 2 moves along the rotation direction of the bevel rollers 14, and the paperboard 2 moves toward the direction close to the first positioning plate 121 and the second positioning plate 122, and finally the two right angle sides of the paperboard 2 contact the first positioning plate 121 and the second positioning plate 122, respectively, and at this time one of the top corners of the paperboard 2 is guided to enter the right angle corner position close to each other, thereby realizing the automatic alignment operation of the paperboard 2.

[0027] like Figure 5 As shown, the folding position of the paperboard 2 varies due to different folding requirements and different sizes of the paperboard 2. In order to adapt to this situation, an adjusting bolt 123 is passed through the second positioning plate 122, and a positioning block 124 is installed at the bottom end of the adjusting bolt 123. The positioning platform 12 is provided with an adjusting long slot 125 arranged perpendicular to the second positioning plate 122. The positioning block 124 can be moved in the adjusting long slot 125 and the position of the positioning block 124 is fixed by tightening the adjusting bolt 123. The adjusting bolt 123 penetrates into the second positioning plate 122 from top to bottom, and the bottom end of the adjusting bolt 123 is threadedly connected with the positioning block 124. Loosening the adjusting bolt 123 allows the positioning block 124 to move in the adjusting slot 125, and also drives the movement of the second positioning plate 122. After determining the position of the second positioning plate 122, tighten the adjusting bolt 123 to press and fix the positioning block 124 in the adjusting slot 125, so that the second positioning plate 122 is fixed at the preset position, thereby adapting to cardboards 2 of different specifications and different folding positions.

[0028] The positioning platform 12 is also provided with a plurality of parallel rollers 15 and a plurality of vertical rollers 16. The axial direction of the parallel rollers 15 is arranged parallel to the first positioning plate 121, and the axial direction of the vertical rollers 16 is arranged perpendicular to the first positioning plate 121. When the parallel rollers 15 are in operation, they drive the paperboard 2 close to the first positioning plate 121, and when the vertical rollers 16 are in operation, they drive the paperboard 2 close to the second positioning plate 122. The cooperation of the two can assist the guiding function of the angled rollers 14, so that the paperboard 2 can be positioned quickly and accurately, especially the paperboard 2 with a larger size and format.

[0029] The inlet of the lower cutting channel 13 is provided with arc chamfers 131 on both sides, and the arc chamfers 131 on both sides form a shrinking shape with a gradually decreasing spacing. The arc chamfers 131 ensure a smooth transition of the paperboard 2 when entering the lower cutting channel 13, and help guide the paperboard 2 to accurately enter the predetermined folding position.

[0030] The output mechanism 4 includes a plurality of output rollers 41, the axial direction of which is arranged along the descending direction of the lower platen frame 3, and the output rollers 41 are arranged on both sides of the exit of the lower cutting channel 13, forming a layout of two rows of vertical output rollers 41. The output rollers 41 actually contact the lower surface of the cardboard 2 in the transport state, and rotate the output rollers 41 to send out the folded cardboard 2, so that the cardboard 2 is separated from the lower platen frame 3. The output rollers 41 can also be operated after the lower platen frame 3 rises and resets, but it is necessary to ensure that there is sufficient friction between the cardboard 2 and the output rollers 41 to prevent the cardboard 2 from being separated from the contact with the output rollers 41 when the lower platen frame 3 is reset.

[0031] The diameter of the output roller 41 gradually increases along the descending direction of the lower platen frame 3, so that the spacing between the two rows of output rollers 41 on both sides gradually decreases. As the descending stroke of the lower platen frame 3 increases, the contact friction between the cardboard 2 and the output roller 41 will also increase. Therefore, the descending stroke of the lower platen frame 3 can be adjusted to select a suitable friction force so that the cardboard 2 can be delivered more smoothly. At the same time, for cardboards 2 of different thicknesses, this method can also be used to adjust to ensure that cardboards 2 of different thicknesses can be smoothly separated from the lower platen frame 3.

Claims

1. A packaging box cardboard folding device, characterized in that: The invention comprises a transport mechanism (1) for horizontally transporting cardboard (2), wherein the transport mechanism (1) comprises a receiving platform (11) located upstream of the transport and a positioning platform (12) located downstream of the transport, wherein the receiving platform (11) and the positioning platform (12) are arranged at an interval and a lower cutting channel (13) is arranged between the two, and a lower pressing plate frame (3) that can be movably lifted and lowered is arranged above the lower cutting channel (13), wherein the lower pressing plate frame (3) can be movably lifted and lowered along the thickness direction of the cardboard (2), wherein the lower pressing plate frame (3) cooperates with the lower cutting channel (13) to lower and press the folding position of the cardboard (2) into the lower cutting channel (13) and fold the cardboard (2) along the folding position; and an output mechanism (4) is also installed below the lower cutting channel (13), wherein the output mechanism (4) is located on the descending stroke of the lower pressing plate frame (3) to deliver the folded cardboard (2).

2. The packaging box cardboard folding device according to claim 1 is characterized in that: The positioning platform (12) is provided with a first positioning plate (121) and a second positioning plate (122), the first positioning plate (121) and the second positioning plate (122) being arranged perpendicularly to each other and forming a right-angle corner position therebetween; the positioning platform (12) is also provided with a plurality of angled rollers (14), the axial directions of the angled rollers (14) being arranged obliquely to the first positioning plate (121) and the second positioning plate (122) respectively so as to guide one of the top corners of the paperboard (2) to align and enter the right-angle corner position.

3. The packaging box cardboard folding device according to claim 2 is characterized in that: The second positioning plate (122) is provided with an adjusting bolt (123), a positioning block (124) is installed at the bottom end of the adjusting bolt (123), the positioning platform (12) is provided with an adjusting long slot (125) arranged perpendicular to the second positioning plate (122), the positioning block (124) can be moved in the adjusting long slot (125), and the position of the positioning block (124) can be fixed by tightening the adjusting bolt (123).

4. The packaging box cardboard folding device according to claim 2, characterized in that: A plurality of parallel rollers (15) and a plurality of vertical rollers (16) are also arranged on the positioning platform (12); the axial direction of the parallel rollers (15) is arranged parallel to the first positioning plate (121); and the axial direction of the vertical rollers (16) is arranged perpendicular to the first positioning plate (121).

5. The packaging box cardboard folding device according to claim 1 or 2, characterized in that: Circular chamfers (131) are provided on both sides of the channel inlet of the undercut channel (13), and the circular chamfers (131) on both sides form a shape with a gradually decreasing spacing.

6. The packaging box cardboard folding device according to claim 1 or 2, characterized in that: The output mechanism (4) comprises a plurality of output rollers (41), the axial direction of the output rollers (41) being arranged along the descending direction of the lower pressure plate frame (3), and the plurality of output rollers (41) being arranged on both sides of the outlet of the lower cutting channel (13).

7. The packaging box cardboard folding device according to claim 6, characterized in that: The diameter of the output roller (41) gradually increases along the descending direction of the lower pressing plate frame (3).

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