Three-piece type carton folding machine

Abstract

The utility model provides a three-piece type carton folding machine which comprises a first paperboard feeding mechanism and a second paperboard feeding mechanism, the first paperboard feeding mechanism comprises a first paperboard storage frame and a first paperboard pushing assembly, and the first paperboard storage frame is provided with a first interval adjusting assembly; the second paperboard feeding mechanism comprises a second paperboard storage rack and a second paperboard conveying assembly, and the second paperboard storage rack is provided with a second spacing adjusting assembly; the carton folding device further comprises a carton folding mechanism, the carton folding mechanism comprises an upper carton forming die and a lower carton forming die, the lower carton forming die is arranged between the first paperboard pushing assembly and the second paperboard conveying assembly, an upper die driving part is arranged above the lower carton forming die, and the lower carton forming die is provided with a third interval adjusting assembly. The first paper feeding plate mechanism and the second paper feeding plate mechanism are arranged to be of a structure with the interval capable of being adjusted, the size of the forming space of the carton forming lower die can be adjusted through the third interval adjusting assembly, and therefore one machine can adapt to production of cartons of multiple sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of carton production equipment, in particular to a three-piece carton folding machine. Background Art

[0002] In modern society, with the rapid development of the logistics industry, product packaging protection is particularly important. In order to ensure the safety and integrity of goods during transportation, it is usually necessary to use cartons to properly package the products. However, there is a common problem with existing folding carton machines and equipment, that is, they are often designed only for specific models and sizes of cartons. This limitation makes the production line stretched and unable to respond flexibly when facing diversified carton demands. Since these machines are not compatible with the production of cartons of various models and sizes, manufacturers have to purchase more machines or make frequent machine adjustments when facing diversified market demands, which undoubtedly increases production costs and time costs, and ultimately leads to excessively high overall production costs of cartons, affecting the company's competitiveness and market response speed. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a three-piece paper box folding machine.

[0004] The utility model is implemented by the following method: a three-piece paper box folding machine includes a first paperboard feeding mechanism and a second paperboard feeding mechanism, the first paperboard feeding mechanism includes a first paperboard storage rack and a first paperboard pushing component arranged under the first paperboard storage rack, the first paperboard storage rack is provided with a first spacing adjustment component; the second paperboard feeding mechanism includes a second paperboard storage rack and a second paperboard conveying component, the second paperboard conveying component is arranged on one side of the second paperboard storage rack, and the second paperboard storage rack is provided with a second spacing adjustment component; also includes a carton folding mechanism, the carton folding mechanism includes a carton forming upper mold and a carton forming lower mold, the carton forming lower mold is arranged on one side of the first paperboard pushing component and one side of the second paperboard conveying component, an upper mold driving component is arranged above the carton forming lower mold, the upper mold driving component drives and connects the carton forming upper mold, and the carton forming lower mold is provided with a third spacing adjustment component for adjusting the forming space size of the carton forming lower mold.

[0005] Preferably, the first cardboard storage rack includes two first side panels, cardboard is placed between the two first side panels, the first spacing adjustment assembly includes an X-axis guide and an X-axis driving member, the two first side panels are installed in parallel on the X-axis guide, and the two first side panels are driven by the X-axis driving member to approach or move away from each other.

[0006] Preferably, the first spacing adjustment component further comprises a first Y-direction guide, and the surfaces of the two first side panels facing each other are each provided with a first Y-direction guide, and the first Y-direction guide is provided with a first baffle and a second baffle perpendicular to the first side panel, and the first baffle and the second baffle can move on the first Y-direction guide, and the first baffle and the second baffle are provided with a support block for supporting the cardboard; a limiting portion is provided at the lower end of the surface of the first side panel facing the other side panel, and the bottom of one end of the first side panel facing the carton folding mechanism extends to the extension guide portion above the carton forming lower die, and a limiting baffle and a check block are provided on the extension guide portion of the first side panel, and the limiting baffle is provided at one end above the carton forming lower die away from the first side panel; a spraying member is provided at a position between the first cardboard storage rack and the carton forming lower die avoiding the cardboard moving path, and the spraying member comprises a gantry frame erected between the first cardboard storage rack and the carton forming lower die, and a nozzle displacement member provided on the gantry, and a nozzle is installed on the nozzle displacement member, and the nozzle is connected to a glue supply device.

[0007] Preferably, the first cardboard pushing assembly includes a first cardboard pushing block arranged at the lower side of the first cardboard storage rack and a first cardboard adsorbing member arranged away from the first cardboard pushing block, the first cardboard adsorbing member is driven by a first lifting driving member to adsorb the upper cardboard of the first cardboard storage rack, and the first cardboard pushing block is driven to move by a first pushing driving member, so as to push the cardboard sucked off the first cardboard storage rack by the first cardboard adsorbing member to the carton forming lower mold.

[0008] Preferably, the first cardboard adsorption component includes a top plate and a suction cup arranged on the top plate, the first lifting drive component is a four-bar module, the top plate is mounted on the four-bar module, and the four-bar module is driven by a motor; the first pushing drive component includes a first sprocket, a first chain and a guide frame facing the carton folding mechanism, the guide frame is arranged on the lower side of the first cardboard storage rack, two first sprockets are respectively located at two ends of the guide frame, the first chain is mounted on the two first sprockets, and a first guide rail is also provided on the guide frame, the first cardboard pushing block is fixedly connected to the first chain, and the first cardboard pushing block is slidably connected to the first guide rail, and one of the first sprockets is driven by a motor to drive the first cardboard pushing block to move along the first guide rail.

[0009] Preferably, the first cardboard adsorption members are provided in two groups, and the corresponding first lifting drive members are also provided in two groups respectively arranged on both sides of the guide frame, and a fourth spacing adjustment component is arranged on the lower side of the guide frame, and the two first lifting drive members are both arranged on the fourth spacing adjustment component.

[0010] Preferably, there are two groups of the second paperboard feeding mechanism, which are respectively arranged on the adjacent two sides of the carton folding mechanism facing the first paperboard feeding mechanism; the second paperboard storage rack includes two second side panels, and paperboard is placed between the two second side panels; the second spacing adjustment assembly includes a second Y-direction guide and a second Y-direction driving member, and the two second side panels are installed in parallel on the second Y-direction guide member, and the two second side panels are driven by the second Y-direction driving member to approach or move away from each other.

[0011] Preferably, the second cardboard storage rack also includes a first pallet and a second pallet, and the first pallet and the second pallet are installed on the surface of each second side panel facing the other second side panel, the first pallet is arranged on the part of the second side panel close to the carton folding mechanism, and the second pallet is connected with the side of the first pallet away from the carton folding mechanism on the second side panel to form an angle so as to jointly support the cardboard; the axis of the second side panel forms an angle with the horizontal plane, and the height of the second side panel gradually decreases from the side away from the carton folding mechanism to the side close to the carton folding mechanism, and the second cardboard storage rack also includes a second guide plate parallel to the second pallet, and the second guide plate is provided with a cardboard pressing block that can slide along the second guide plate under its own weight, which is used for pressing the cardboard along the second pallet toward the first pallet, and the second pallet can adjust the distance from the lower side of the second side panel.

[0012] Preferably, the second cardboard conveying assembly includes a second adsorption member arranged on a side of the second cardboard storage rack close to the carton folding mechanism, and the second adsorption member is driven by a second conveying drive member to flip and transport the cardboard on the second cardboard storage rack to a position facing the carton folding mechanism; the second cardboard conveying assembly also includes a second cardboard pushing drive member arranged under the second cardboard storage rack, and the second cardboard pushing drive member has two cardboard pushing blocks that can approach or move away from each other installed on one end facing the carton folding mechanism, and are respectively located on both sides of the traveling direction, and the cardboard pushing blocks avoid the second adsorption member, and are used to push and press the cardboard between the second adsorption member and the carton folding mechanism onto the carton forming upper mold.

[0013] Preferably, the carton forming lower die comprises a lower module, the third spacing adjustment component is an XY adjustment member, the lower module is mounted on the XY adjustment member, and a total of four are provided. The lower modules can approach or move away from each other under the XY adjustment member; the XY adjustment member comprises two parallel X-direction bidirectional lead screws and two parallel Y-direction bidirectional lead screws, a displacement plate with opposite moving directions is provided between the two X-direction bidirectional lead screws, one Y-direction bidirectional lead screw is respectively installed on the two displacement plates, a displacement block is slidably installed on each displacement plate, the displacement block is transmission-connected to the Y-direction bidirectional lead screw on the displacement plate, and the Y-direction bidirectional lead screw rotates The two displacement blocks are automatically driven to move in the opposite direction of the displacement plate, and the four lower modules are respectively installed on the four displacement blocks. The carton forming upper mold can push the cardboard on the carton forming lower mold from top to bottom to punch it into the lower modules for forming; the top of the lower module on the same displacement plate is provided with an arc surface facing the other lower module; the two lower modules on the same displacement plate are provided with guide rollers on the surfaces facing each other and on the side away from the other displacement plate; the surface of the lower module facing the other displacement plate is provided with a first positioning rod, and the first positioning rod is driven by a cylinder to swing toward the direction of the other lower module of the same displacement plate.

[0014] The beneficial effects of the utility model are as follows: the utility model provides a three-piece paper box folding machine. Compared with the prior art, the utility model has at least the following technical effects: 1. By setting the first paper feeding mechanism and the second paper feeding mechanism to a structure that can adjust the spacing, and by adjusting the spacing of the carton forming lower mold through the third spacing adjustment component, it is possible to achieve the production of paper boxes of various sizes with only one set of machines, and only need to change the carton forming upper mold, which can achieve rapid production conversion and effectively reduce the equipment procurement cost of carton manufacturing. 2. Through the X-direction guide, the X-direction drive and the first Y-direction guide, the first paperboard storage rack can adjust the spacing in the X-direction and Y-direction to adapt to the storage of paperboards of different sizes; similarly, the second paperboard storage rack can also adapt to the storage of paperboards of different sizes due to the second Y-direction guide and the second Y-direction drive, and the second support plate that can adjust the spacing with the lower side of the second side plate. 3. Through the setting of the Y-direction bidirectional lead screw and the X-direction double lead screw, the adjustment spacing of the carton forming lower mold can be driven to adapt to the folding and forming of cartons of different sizes. 4. The first cardboard adsorption piece can be driven by the spline shaft and cooperated with the bidirectional lead screw to adjust the distance between the two first cardboard adsorption pieces, so as to better adapt to the cardboards of different sizes stored on the first cardboard storage rack; the second adsorption piece is the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a three-piece paper box folding machine of the utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of a three-piece paper box folding machine of the utility model from another perspective.

[0017] Figure 3 It is a schematic diagram of the connection relationship between the first paperboard storage rack and the first paperboard pushing component of the utility model.

[0018] Figure 4 It is a schematic diagram of the connection relationship between the first cardboard storage rack and the first spacing adjustment component of the utility model.

[0019] Figure 5 It is a schematic diagram of the connection relationship between the first paperboard pushing component and the fourth spacing adjustment component of the utility model.

[0020] Figure 6 It is a schematic diagram of the connection relationship between the first cardboard pushing component and the fourth spacing adjustment component of the utility model from another perspective.

[0021] Figure 7 It is a schematic diagram of the cross-sectional connection relationship between the first paperboard pushing block and the first pushing driving member of the utility model.

[0022] Figure 8 It is a structural schematic diagram of the second paperboard feeding mechanism of the utility model.

[0023] Fig. 9 It is a back view of the second paperboard feeding mechanism of the utility model.

[0024] Fig.10 It is a schematic diagram of the connection relationship between the second spacing adjustment component and the second paperboard conveying component of the utility model.

[0025] Fig.11 It is a structural schematic diagram of a carton folding mechanism of the utility model.

[0026] Fig.12 It is a schematic diagram of the connection relationship between the carton forming lower die and the third spacing adjustment component of the utility model.

[0027] Fig.13 It is a schematic diagram of the connection relationship between the first positioning rod, the lower module and the cylinder of the utility model.

[0028] Fig.14 The utility model is a schematic diagram of the connection relationship between the carton forming upper die and the crank slider assembly.

[0029] Fig.15 It is a schematic diagram of the state when the first cardboard storage rack and the carton folding mechanism cooperate to form the carton.

[0030] Fig.16 It is a schematic diagram of a carton formed by the utility model.

[0031] Description of the accompanying drawings: 1. first cardboard storage rack; 11. first side plate; 12. first baffle plate; 13. second baffle plate; 14. support block; 15. position limiting portion; 16. extension guide portion; 17. position limiting baffle plate; 18. anti-return block;

[0032] 2. First paperboard pushing component; 21. First paperboard pushing block; 22. First paperboard adsorption member; 221. Top plate; 222. Suction cup; 23. First lifting drive member; 24. First pushing drive member; 241. First sprocket wheel; 242. First chain; 243. Guide frame; 25. Gantry frame; 26. Spray head displacement member; 27. Spray head;

[0033] 3. First spacing adjustment component; 31. X-direction guide; 32. X-direction driving member; 33. First Y-direction guide;

[0034] 4. Second cardboard storage rack; 41. Second side plate; 42. First support plate; 43. Second support plate; 44. Second guide plate; 45. Cardboard pressing block; 46. Positioning hole; 47. Temporary storage rack;

[0035] 5. Second paperboard conveying assembly; 51. Second adsorption member; 52. Second conveying driving member; 521. Second telescopic cylinder; 522. L-shaped connecting plate; 523. First driving sprocket; 524. Second driving sprocket; 525. Driving chain; 526. Guide plate; 527. Guide groove; 528. Follower cam; 53. Second paperboard pushing driving member; 54. Paperboard pushing block; 55. Connecting block;

[0036] 6. Second spacing adjustment component; 61. Second Y-direction guide member; 62. Second Y-direction driving member;

[0037] 7. Carton folding mechanism; 71. Carton forming upper die; 72. Carton forming lower die; 721. Lower die block; 722. Guide roller; 723. First positioning rod; 724. Cylinder; 73. Upper die driving member;

[0038] 8. The third spacing adjustment component; 81. The bidirectional lead screw in the X direction; 82. The bidirectional lead screw in the Y direction; 83. The displacement plate; 84. The displacement block;

[0039] 9. fourth spacing adjustment component; 91. spline shaft; 92. spline shaft sleeve; 93. fourth bidirectional lead screw; 94. sliding block;

[0040] 10. Carton; 101. Main body cardboard; 102. Side cardboard. DETAILED DESCRIPTION

[0041] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0042] See also Figures 1 to 16 A three-piece paper box folding machine includes a first paperboard feeding mechanism and a second paperboard feeding mechanism, wherein the first paperboard feeding mechanism includes a first paperboard storage rack 1 and a first paperboard pushing assembly 2 arranged under the first paperboard storage rack 1, and the first paperboard storage rack 1 is provided with a first spacing adjustment assembly 3; the second paperboard feeding mechanism includes a second paperboard storage rack 4 and a second paperboard conveying assembly 5, the second paperboard conveying assembly 5 is arranged on one side of the second paperboard storage rack 4, and the second paperboard storage rack 4 is provided with a second spacing adjustment assembly 6; and also includes a carton folding mechanism 7, the carton folding mechanism 7 includes a carton forming upper mold 71 and a carton forming lower mold 72, the carton forming lower mold 72 is arranged on one side of the first paperboard pushing assembly 2 and one side of the second paperboard conveying assembly 5, an upper mold driving member 73 is arranged above the carton forming lower mold 72, the upper mold driving member 73 drives and connects the carton forming upper mold 71, and the carton forming lower mold 72 is provided with a third spacing adjustment assembly 8 for adjusting the forming space size of the carton forming lower mold 72. By configuring the first paper feeding paper mechanism and the second paper feeding paper mechanism to be structures capable of adjusting the spacing, and by enabling the third spacing adjustment component 8 to adjust the spacing of the carton forming lower mold 72, it is possible to achieve the production of cartons of various sizes with only one set of machines, and only the carton forming upper mold 71 needs to be replaced, thereby achieving rapid production conversion and effectively reducing the equipment procurement cost for carton manufacturing.

[0043] See also Figures 1 to 4 , Fig.15 Preferably, the first cardboard storage rack 1 includes two first side panels 11, cardboard is placed between the two first side panels 11, the first spacing adjustment component 3 includes an X-direction guide 31 and an X-direction drive 32, the two first side panels 11 are parallelly mounted on the X-direction guide 31, and the two first side panels 11 are driven by the X-direction drive 32 to approach or move away from each other along the X-direction guide 31. The X-direction guide 31 is two parallel bidirectional lead screws, and the X-direction drive 32 can preferably be composed of a motor, a sprocket, a chain group, etc., or can be manual, so as to achieve that the two first side panels 11 can approach or move away from each other in parallel.

[0044] See also Figures 1 to 4 , Fig.15Preferably, the first spacing adjustment component 3 also includes a first Y-direction guide 33, and the surfaces of the two first side panels 11 facing each other are each provided with a first Y-direction guide 33, and the first Y-direction guide 33 is provided with a first baffle 12 and a second baffle 13 which are perpendicular to the first side panel 11, and the first baffle 12 and the second baffle 13 can move on the first Y-direction guide 33, and the first baffle 12 and the second baffle 13 are provided with a supporting block 14 for supporting the cardboard; a limiting portion 15 is provided at the lower end of the surface of the first side panel 11 facing the other side panel, and an extending guide portion 16 extending from the bottom of one end of the first side panel 11 toward the carton folding mechanism 7 to above the carton forming lower mold 72, and a limiting baffle 17 and a check block 18 are provided on the extending guide portion 16 of the first side panel 11, and the limiting baffle 17 is provided at one end of the carton forming lower mold 72 away from the first side panel 11. The check block 18 is hinged on the extension guide 16, and is provided with a return spring to press the end away from the first baffle 12 against the extension guide 16, so that the cardboard can only pass from one direction, and cooperates with the limit baffle 17 to limit the cardboard pushed out from the first cardboard storage rack 1 above the carton forming lower mold 72, so as to facilitate accurate folding of the carton. The preferred first Y-direction guide 33 is a guide rail, and the distance between the first baffle 12 and the second baffle 13 can be adjusted by moving them along the guide rail, that is, it can be adapted to cardboards of different sizes. The cardboard is supported only by the support block 14 to facilitate the first cardboard adsorbent 22 to drag the cardboard from between the side panels.

[0045] See also Figure 1 Preferably, a spraying part is provided at a position between the first cardboard storage rack 1 and the carton forming lower mold 72 avoiding the cardboard moving path, and the spraying part includes a gantry 25 erected between the first cardboard storage rack and the carton forming lower mold, and a nozzle displacement part 26 arranged on the gantry 25, and a nozzle 27 is installed on the nozzle displacement part, and the nozzle 27 is connected to a glue supply device (not shown). There are two groups of nozzles, each group has one or more nozzles (the number of nozzles can be increased or decreased according to actual needs), and each group of nozzles is fixed to a nozzle displacement part. The nozzle displacement part can adjust the position on the gantry. The nozzle is used to spray patterns on the surface of the cardboard, and the position can be adjusted to adapt to the spraying work of cardboards of different sizes.

[0046] See also Figures 1 to 7Preferably, the first cardboard pushing assembly 2 includes a first cardboard pushing block 21 arranged at the lower side of the first cardboard storage rack 1 and a first cardboard adsorbing member 22 arranged away from the first cardboard pushing block 21, the first cardboard adsorbing member 22 is driven by a first lifting driving member 23 to adsorb the upper cardboard of the first cardboard storage rack 1, and the first cardboard pushing block 21 is driven to move by a first pushing driving member 24, so as to push the cardboard sucked off the first cardboard storage rack 1 by the first cardboard adsorbing member 22 to the carton forming lower mold 72. The first cardboard adsorption member 22 includes a top plate 221 and a suction cup 222 arranged on the top plate 221. The first lifting drive member 23 is a four-bar linkage module. The top plate 221 is installed on the four-bar linkage module, and the four-bar linkage module is driven by a motor. The first pushing drive member 24 includes a first sprocket 241, a first chain 242 and a guide frame 243 facing the carton folding mechanism 7. The guide frame 243 is arranged on the lower side of the first cardboard storage rack 1. The two first sprockets 241 are respectively located at the two ends of the guide frame 243. The first chain 242 is installed on the two first sprockets 241. The guide frame 243 is also provided with a first guide rail. The first cardboard pushing block 21 is fixedly connected to the first chain 242 (see Figure 7 , a moving block is fixed on the first chain 242, a through slot is provided on the first cardboard pushing block 21, the connecting part of the first moving block penetrates the through slot, the connecting part can move in the through slot, and is fixed and limited by a locking member, and the initial position of the cardboard pushing block 21 can be adjusted as needed to adapt to cardboards of different sizes), the first cardboard pushing block 21 is slidably connected to the first guide rail, wherein the first sprocket 241 is driven by a motor to drive the first cardboard pushing block 21 to move along the first guide rail. After the cardboard is dragged off the support block 14, it falls onto the limiting portion 15 of the first side plate 11, and then is pushed by the first cardboard pushing block 21 to move along the limiting portion 15 and then continue to move along the extended guide portion 16. As long as the motor drives one rod of the four-link module to swing, the lifting action can be realized, and the top plate 221 can be driven to rise so that the suction cup 222 contacts the cardboard at the bottom of the first cardboard storage rack 1. The suction cup 222 is connected to a vacuum generator. A plurality of suction cups are provided on the top plate 221, and the suction cups can be adjusted in the upper position of the top plate to adjust the distance between the suction cups to adapt to the adsorption of cardboards of different sizes. Preferably, the motor of the four-link module is the same motor as the motor of the first push drive member 24. In this way, the cardboard pushing action and the cardboard sucking action can be synchronized, ensuring that the cardboard is accurately sucked from the first cardboard storage rack 1 each time, and the first cardboard pushing component 2 cooperates with the pushing movement to the carton forming lower mold 72, ensuring synchronous reset and synchronous suction and pushing.

[0047] See also Figures 1 to 3 , Figures 5 to 7Preferably, the first cardboard adsorption members 22 are provided with two groups, and the corresponding first lifting drive members 23 are also provided with two groups, which are respectively arranged on both sides of the guide frame 243, and the fourth spacing adjustment component 9 is arranged on the lower side of the guide frame 243, and the two first lifting drive members 23 are both arranged on the fourth spacing adjustment component 9. The fourth spacing adjustment component 9 includes a spline shaft 91, a spline sleeve 92 and a fourth bidirectional lead screw 93. The spline sleeve 92 is sleeved on the spline shaft 91. Two sliding blocks 94 are arranged on the fourth bidirectional lead screw 93. The sliding blocks 94 are movably connected with a spline sleeve 92 respectively. The motor drives the spline shaft 91 to rotate. A connecting rod at the bottom of the four-bar linkage module is fixedly connected with the spline sleeve 92. The spline sleeve 92 can move on the spline shaft 91. In this way, the fourth bidirectional lead screw 93 can be rotated to make the sliding blocks 94 move away from or close to each other, that is, drive the spline sleeve 92 to move towards or away from each other, and also make the four-bar linkage module move towards or away from each other, so as to make the first cardboard adsorption parts move towards or away from each other, so as to adapt to the adsorption of cardboards of different sizes. The cooperation between the spline shaft 91 and the spline sleeve 92 can ensure that the spline sleeve 92 can maintain power transmission even if it moves. Figure 5 , Figure 6 The spline shaft 91 is connected to the output shaft of the motor of the first pushing driving member through a connecting rod transmission, so that the spline shaft 91 rotates synchronously while the first pushing driving member 24 drives the first cardboard pushing block to move. The motor of the first pushing driving member drives a cam, and the cam transmission connects the connecting rod, driving the connecting rod to swing, thereby driving the spline shaft 91 connected to the connecting rod transmission to rotate, and then driving the four-bar connecting rod module to drive the suction cup to absorb the cardboard.

[0048] See also Figure 1 , Figure 2 , Figures 8 to 10 , preferably, the second paperboard feeding mechanism has two groups, which are respectively arranged on the adjacent two sides of the carton folding mechanism 7 facing the first paperboard feeding mechanism; the second paperboard storage rack 4 includes two second side panels 41, and paperboard is placed between the two second side panels 41. The second spacing adjustment component 6 includes a second Y-direction guide 61 and a second Y-direction drive 62. The two second side panels 41 are parallelly mounted on the second Y-direction guide 61, and the two second side panels 41 are driven by the second Y-direction drive 62 to approach or move away from each other. It is used to feed paperboards on both sides of the carton; the second Y-direction guide 61 is two parallel bidirectional screws, and the second Y-direction drive 62 is a motor, a sprocket, a chain group, etc., or it can be manual, or an electric drill, etc., but it is not limited to this. The two bidirectional screws rotate synchronously to achieve the parallel approach or distance of the two second side panels 41 to accommodate the storage of carton side panels of various sizes.

[0049] See also Figure 1 , Figure 2 , Figures 8 to 10Preferably, the second cardboard storage rack 4 also includes a first support plate 42 and a second support plate 43, and the surface of each second side panel 41 facing the other second side panel 41 is installed with the first support plate 42 and the second support plate 43, the first support plate 42 is arranged on the part of the second side panel 41 close to the carton folding mechanism 7, and the second support plate 43 is connected with the side of the first support plate 42 away from the carton folding mechanism on the second side panel 41 to form an angle to jointly support the cardboard; the axis of the second side panel 41 forms an angle with the horizontal plane, and the height of the second side panel 41 gradually decreases from the side away from the carton folding mechanism 7 to the side close to the carton folding mechanism 7, and the second cardboard storage rack also includes a second guide plate 44 parallel to the second support plate 43, and the second guide plate 44 is provided with a cardboard pressing block 45 that can slide along the second guide plate 44 under its own weight, which is used for the cardboard to be pressed toward the first support plate 42 along the second support plate 43, and the second support plate 43 can adjust the distance from the lower side of the second side panel 41. A plurality of positioning holes 46 are provided at equal intervals on the second side plate 41 for positioning and installing the second support plate 43, so as to achieve the purpose of installing the second support plate 43 at an appropriate position according to paperboards of different sizes. Since the second side plate 41 is inclined, the second guide plate 44 is also inclined, so that the paperboard pressing block 45 can press the paperboard with its own gravity. The connection between the paperboard pressing block 45 and the second guide plate 44 has a plurality of rollers capable of clamping the second guide plate 44.

[0050] See also Figure 1 , Figure 2 , Figures 8 to 10Preferably, the second cardboard conveying assembly 5 includes a second adsorption member 51 arranged on the side of the second cardboard storage rack 4 close to the carton folding mechanism 7, and the second adsorption member 51 is driven by the second conveying driving member 52 to flip the cardboard on the second cardboard storage rack 4 to a position facing the carton folding mechanism 7; the second cardboard conveying assembly 5 also includes a second cardboard pushing driving member 53 arranged under the second cardboard storage rack 4, and the second cardboard pushing driving member 53 is provided with two cardboard pushing blocks 54 that can approach or move away from each other at one end facing the carton folding mechanism 7, which are respectively located on both sides of the traveling direction, and the cardboard pushing blocks 54 avoid the second adsorption member 51, and are used to push the cardboard between the second adsorption member 51 and the carton folding mechanism 7 onto the carton forming upper mold 71. The second suction member 51 is connected to the second conveying driving member 52 through a connecting block 55. The second suction member 51 is a vacuum suction cup. The second conveying driving member 52 is capable of driving the vacuum suction cup to rotate a certain angle around the connection between the connecting block 55 and the second conveying driving member 52. The second conveying driving member 52 includes a second telescopic cylinder 521 and an L-shaped connecting plate 522 respectively hinged to the second cardboard storage rack 4. The other end of the second telescopic cylinder 521 is hinged at an angle with the L-shaped connecting plate 522. The L-shaped connecting plate 522 is provided with a second telescopic cylinder 521. 1 is provided with a first driving sprocket 523, one end of the L-shaped connecting plate 522 is connected to the connecting block 55, and a second driving sprocket 524 is provided at the connection with the connecting block 55, and a driving chain 525 is connected between the first driving sprocket 523 and the second driving sprocket 524; and a guide plate 526 is also connected at the connection between the first driving sprocket 523 and the L-shaped connecting plate 522, and the guide plate 526 is fixedly connected to the first driving sprocket 523, and an arc-shaped guide groove 527 is provided on the guide plate 526, and the guide groove 527 is provided on the second cardboard storage rack 4. A fixed follower cam 528 is provided at the bottom. In this way, when the second telescopic cylinder 521 retracts to drive the L-shaped connecting plate 522 to rotate around the hinge to the side of the carton folding mechanism 7, due to the existence of the guide plate 526, the guide groove 527 and the follower cam 528, the follower cam 528 and the guide groove 527 cooperate to control the movement trajectory of the guide plate 526, which will drive the first driving sprocket 523 to rotate, and then drive the second driving sprocket 524 to rotate, which can also drive the connecting block 55 to rotate, completing the second adsorption member 51 from the rear The second cardboard storage rack 4 on the side sucks and drags out, then flips and swings the cardboard to the front side close to the carton folding mechanism 7; the L-shaped connecting plate 522 and the second telescopic cylinder 521 are symmetrically provided with two second cardboard temporary storage racks 47 respectively located on both sides, and a spacing adjustment plate is provided between the two second L-shaped connecting plates 522, the spacing adjustment plate is fixedly connected to the second driving sprocket 524, and the second adsorption member 51 is provided with two corresponding connecting blocks 55 and also provided with two capable of moving on the spacing adjustment plate to adjust the spacing between the two second adsorption members 51.A cardboard temporary storage rack 47 is provided between the second adsorption member 51 and the carton folding mechanism 7. The second adsorption member 51 first takes out the cardboard and puts it on the cardboard temporary storage rack 47. Then the second cardboard pushing component pushes the cardboard pushing block 54 toward the carton forming upper mold 71, so that the cardboard can be pushed from the temporary storage rack 47 to the carton forming upper mold 71. The cross section of the cardboard pushing block 54 is L-shaped, so that the two sides of the cardboard can be folded 90 degrees with the carton forming upper mold 71. The second cardboard pushing drive member 53 is a telescopic cylinder 724. The pushing end of the telescopic cylinder 724 is connected to the mounting block. A slide rail is provided on the mounting block. Two sliders are provided on the slide rail. The sliders can be clamped and positioned with the sliders. The cardboard pushing block is installed at one end of the slider facing the carton folding mechanism 7.

[0051] See also Figure 1 , Figure 2 , Figures 11 to 15Preferably, the carton forming lower die 72 includes a lower module 721, and the third spacing adjustment component 8 is an XY-direction adjustment member, and the lower module 721 is installed on the XY-direction adjustment member, and a total of four are provided. The lower modules 721 can be close to or away from each other by the XY-direction adjustment member; the XY-direction adjustment member includes two parallel X-direction bidirectional lead screws 81 and two parallel Y-direction bidirectional lead screws 82, and a displacement plate 83 with opposite moving directions is provided between the two X-direction bidirectional lead screws 81, and one Y-direction bidirectional lead screw 82 is installed on each of the two displacement plates 83, and a displacement block 84 is slidably installed on each of the displacement plates 83, and the displacement block 84 is transmission-connected with the Y-direction bidirectional lead screw 82 on the displacement plate 83, and the Y-direction bidirectional lead screw 82 rotates to drive the two displacement blocks 84 to move in opposite directions on the displacement plate 83, and the four The lower modules 721 are respectively installed on the four displacement blocks 84, and the carton forming upper mold 71 can push the cardboard on the carton forming lower mold 72 from top to bottom to punch it into the lower modules 721 for forming; the top of the lower module 721 on the same displacement plate 83 is provided with an arc surface facing the other lower module 721, which plays a role in guiding the ear plate on the side of the main cardboard of the carton to fold and form; the two lower modules 721 on the same displacement plate 83 are provided with a guide roller 722 on the surface facing each other and away from the other displacement plate 83, which plays a guiding role to facilitate the smooth folding and forming of the cardboard; the surface of the lower module 721 facing the other displacement plate 83 is provided with a first positioning rod 723, and the first positioning rod 723 is driven by a cylinder 724 to swing toward the direction of the other lower module 721 of the same displacement plate 83. The first positioning rod 723 is provided with positioning blocks on the bottom and top surfaces facing the other positioning rod. The positioning blocks at the bottom are used to adjust the material feeding speed, and the positioning blocks at the top are used to hook the carton when the carton forming upper die 71 moves up and resets after the carton is formed to prevent the carton from being lifted up by the carton forming upper die. The upper die driving member 73 adopts a crank slider assembly. The carton forming upper die 71 is connected to the crank slider assembly through a quick release mechanism (not shown), and the quick release mechanism includes an upper die buckle fixed to the carton forming upper die, a pin is provided on the crank slider assembly to be movably connected with the upper die buckle, and a rotation angle limiting top screw is provided on the carton forming upper die, and one part of the pin is provided with a D-shaped part; when the arc of the pin is matched with the upper die buckle, the upper die is locked, and when the pin is rotated to make the plane of its D-shaped part match with the upper die buckle, the upper die buckle can be pulled out downward; the carton forming upper die can be separated from the crank slider assembly; it is convenient to replace different types of molds according to the size of the formed carton.

[0052] See also Fig.16 Preferably, the carton 10 is composed of a main body cardboard 101 and side cardboards 102 on the sides of the carton.

[0053] The utility model has the following working principle:

[0054] First, place the main cardboard 101 used for forming the main part of the carton on the first cardboard storage rack 1, and place the side cardboard 102 used for forming the side of the carton on the second cardboard storage rack 4; the first cardboard storage rack 1 and the second cardboard storage rack 4 can be adjusted to the storage size of the first cardboard storage rack 1 and the second cardboard storage rack 4 as needed through the first spacing adjustment component 3 and the second spacing adjustment component 6, and the forming size of the lower mold of the carton can be synchronously adjusted through the third spacing adjustment component 8, and the spacing of the four-linkage (the spacing of the first cardboard adsorption component) can be adjusted through the fourth spacing adjustment component 9, and the spacing of the two cardboard pushing blocks 54 can be adjusted by adjusting the position of the slider relative to the slide rail to adapt to the side panels of corresponding sizes.

[0055] When the carton needs to be folded, first drag the main cardboard 101 from the support block 14 of the first cardboard storage rack 1 (the first cardboard adsorption member 22 is driven by the first lifting drive member 23 to rise and press against the main cardboard 101 on the upper side of the support block 14, and then the first cardboard adsorption member sucks the cardboard with negative pressure, and the first lifting drive member 23 drives the first cardboard adsorption member to move downward to drag the cardboard from the support block 14 to the limiting portion 15 of the first side plate 11.) Then the first cardboard pushing block 21 is driven by the first pushing drive member 24 to move from the end away from the carton folding mechanism 7 to the end close to it, so as to push the main cardboard 101 along the extending guide portion 16 to the top of the carton forming lower mold 72 (in this process, the main cardboard 101 moves to push the check block 18 until it touches the limiting baffle 17 to stop), and at the same time, the second conveying drive members 52 of the two second cardboard feeding mechanisms drive the second adsorption member 51 to first press against the first The second cardboard storage rack is against the cardboard of the first support plate 42, and the second adsorption member 51 sucks the cardboard under negative pressure; then, the second conveying driving member 52 drags the cardboard out, flips it and places it on the temporary storage rack 47; thereafter, the second cardboard pushing driving member 53 drives the cardboard pushing block 54 to push the cardboard from the temporary storage rack 47 and push it onto the side of the carton forming upper mold 71, so that the two sides of the side cardboard are folded; thereafter, the carton forming upper mold 71 descends to press the cardboard below it downward and push it between the lower modules 721 to complete the folding and forming of the carton body. In this process, the two side cardboards 102 on the sides of the carton forming upper mold 71 are brought into the positions on both sides of the formed main cardboard 101. At this time, due to the action of the positioning block on the first positioning rod 723, the carton will not fall immediately. When the next cardboard is pushed into the formed carton, the first positioning rod 723 is driven by the telescopic cylinder 724 to swing the bottom outward so that the carton can fall.

[0056] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0057] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0058] Finally, the above is only a preferred implementation of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0059] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications without departing from the principle of the utility model should also be regarded as within the protection scope of the utility model.

Claims

1. A three-piece paper box folding machine, characterized in that: It includes a first paperboard feeding mechanism and a second paperboard feeding mechanism, the first paperboard feeding mechanism includes a first paperboard storage rack and a first paperboard pushing component arranged under the first paperboard storage rack, the first paperboard storage rack is provided with a first spacing adjustment component; the second paperboard feeding mechanism includes a second paperboard storage rack and a second paperboard conveying component, the second paperboard conveying component is arranged on one side of the second paperboard storage rack, and the second paperboard storage rack is provided with a second spacing adjustment component; it also includes a carton folding mechanism, the carton folding mechanism includes a carton forming upper mold and a carton forming lower mold, the carton forming lower mold is arranged on one side of the first paperboard pushing component and one side of the second paperboard conveying component, an upper mold driving component is arranged above the carton forming lower mold, the upper mold driving component drives and connects the carton forming upper mold, and the carton forming lower mold is provided with a third spacing adjustment component for adjusting the forming space size of the carton forming lower mold.

2. A three-piece paper box folding machine according to claim 1, characterized in that: The first cardboard storage rack includes two first side panels, cardboard is placed between the two first side panels, the first spacing adjustment component includes an X-direction guide and an X-direction driving member, the two first side panels are installed in parallel on the X-direction guide, and the two first side panels are driven by the X-direction driving member to approach or move away from each other.

3. A three-piece paper box folding machine according to claim 2, characterized in that: The first spacing adjustment component also includes a first Y-direction guide, and the surfaces of the two first side panels facing each other are each provided with a first Y-direction guide, and the first Y-direction guide is provided with a first baffle and a second baffle perpendicular to the first side panel, and the first baffle and the second baffle can move on the first Y-direction guide, and the first baffle and the second baffle are provided with a support block for supporting the cardboard; a limit portion is provided at the lower end of the surface of the first side panel facing the other side panel, and the bottom of one end of the first side panel facing the carton folding mechanism extends to the extension guide portion above the carton forming lower die, and a limit baffle and a check block are provided on the extension guide portion of the first side panel, and the limit baffle is provided at one end above the carton forming lower die away from the first side panel; a spraying member is provided at a position between the first cardboard storage rack and the carton forming lower die avoiding the cardboard moving path, and the spraying member includes a gantry frame erected between the first cardboard storage rack and the carton forming lower die, and a nozzle displacement member provided on the gantry frame, and a nozzle is installed on the nozzle displacement member, and the nozzle is connected to a glue supply device.

4. A three-piece paper box folding machine according to claim 1, characterized in that: The first cardboard pushing assembly includes a first cardboard pushing block arranged at the lower side of the first cardboard storage rack and a first cardboard adsorbing member arranged to avoid the first cardboard pushing block. The first cardboard adsorbing member is driven by a first lifting driving member to adsorb the upper cardboard of the first cardboard storage rack. The first cardboard pushing block is driven to move by a first pushing driving member, and is used to push the cardboard sucked off the first cardboard storage rack by the first cardboard adsorbing member to the carton forming lower mold.

5. A three-piece paper box folding machine according to claim 4, characterized in that: The first cardboard adsorption component includes a top plate and a suction cup arranged on the top plate, the first lifting drive component is a four-bar module, the top plate is installed on the four-bar module, and the four-bar module is driven by a motor; the first pushing drive component includes a first sprocket, a first chain and a guide frame facing the carton folding mechanism, the guide frame is arranged on the lower side of the first cardboard storage rack, two first sprockets are respectively located at two ends of the guide frame, the first chain is installed on the two first sprockets, and a first guide rail is also provided on the guide frame, the first cardboard pushing block is fixedly connected to the first chain, and the first cardboard pushing block is slidably connected to the first guide rail, and one of the first sprockets is driven by a motor to drive the first cardboard pushing block to move along the first guide rail.

6. A three-piece paper box folding machine according to claim 5, characterized in that: The first cardboard adsorption members are provided in two groups, and the corresponding first lifting drive members are also provided in two groups respectively arranged on both sides of the guide frame. A fourth spacing adjustment component is arranged on the lower side of the guide frame, and the two first lifting drive members are both arranged on the fourth spacing adjustment component.

7. A three-piece paper box folding machine according to claim 1, characterized in that: There are two groups of the second paperboard feeding mechanism, which are respectively arranged on the adjacent two sides of the carton folding mechanism facing the first paperboard feeding mechanism; the second paperboard storage rack includes two second side panels, and paperboard is placed between the two second side panels. The second spacing adjustment component includes a second Y-direction guide and a second Y-direction driving member. The two second side panels are installed in parallel on the second Y-direction guide, and the two second side panels are driven by the second Y-direction driving member to approach or move away from each other.

8. A three-piece paper box folding machine according to claim 7, characterized in that: The second cardboard storage rack also includes a first pallet and a second pallet, and the first pallet and the second pallet are installed on the surface of each second side panel facing the other second side panel, the first pallet is arranged at the part of the second side panel close to the carton folding mechanism, and the second pallet is connected with the side of the first pallet away from the carton folding mechanism on the second side panel to form an angle to jointly hold the cardboard; the axis of the second side panel forms an angle with the horizontal plane, and the height of the second side panel gradually decreases from the side away from the carton folding mechanism to the side close to the carton folding mechanism, and the second cardboard storage rack also includes a second guide plate parallel to the second pallet, and the second guide plate is provided with a cardboard pressing block that can slide along the second guide plate under its own weight, which is used for the cardboard to be pressed toward the first pallet along the second pallet, and the second pallet can adjust the distance from the lower side of the second side panel.

9. A three-piece paper box folding machine according to claim 8, characterized in that: The second cardboard conveying assembly includes a second adsorption member arranged on a side of the second cardboard storage rack close to the carton folding mechanism, and the second adsorption member is driven by a second conveying drive member to flip and transport the cardboard on the second cardboard storage rack to a position facing the carton folding mechanism; the second cardboard conveying assembly also includes a second cardboard pushing drive member arranged under the second cardboard storage rack, and the second cardboard pushing drive member is provided with two cardboard pushing blocks that can approach or move away from each other at one end facing the carton folding mechanism, and are respectively located on both sides of the traveling direction, and the cardboard pushing blocks avoid the second adsorption member, and are used to push and press the cardboard between the second adsorption member and the carton folding mechanism onto the carton forming upper mold.

10. The three-piece paper box folding machine according to claim 1, characterized in that: The carton forming lower die includes a lower module, and the third spacing adjustment component is an XY-direction adjustment member, and the lower module is installed on the XY-direction adjustment member, and a total of four are provided. The lower modules can be close to or away from each other by the XY-direction adjustment member; the XY-direction adjustment member includes two parallel X-direction bidirectional lead screws and two parallel Y-direction bidirectional lead screws, and a displacement plate with opposite moving directions is inserted between the two X-direction bidirectional lead screws, and one Y-direction bidirectional lead screw is installed on each of the two displacement plates, and a displacement block is slidably installed on each of the displacement plates, and the displacement block is transmission-connected to the Y-direction bidirectional lead screw on the displacement plate, and the Y-direction bidirectional lead screw rotates to drive the two displacement blocks in the displacement The plate moves in the opposite direction, and the four lower modules are respectively installed on the four displacement blocks, and the carton forming upper mold can push the cardboard on the carton forming lower mold from top to bottom to punch it into the lower modules for forming; the top of the lower module on the same displacement plate is provided with an arc surface facing the other lower module; the two lower modules on the same displacement plate are provided with guide rollers on the surface facing each other and on the side away from the other displacement plate; the surface of the lower module facing the other displacement plate is provided with a first positioning rod, and the first positioning rod is driven by a cylinder to swing toward the direction of the other lower module of the same displacement plate; a quick release mechanism is connected between the carton forming upper mold and the upper mold driving member.

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