CN211641141U - Box folding machine - Google Patents

Abstract

The utility model relates to a box folding machine, which comprises a frame, a feeding part and a discharging part, wherein the frame is provided with a shaping die, a pressing die and an output part, and the pressing die is detachably connected to the output end of the output part through a connecting piece; the shaping mold comprises a front template, a rear template and two side templates which are arranged along the vertical direction; at least one of the front template and the rear template is connected to the rack in a sliding manner in the feeding direction of the feeding part, and a first adjusting piece for adjusting the relative positions of the front template and the rear template is arranged on the rack; at least one of the two side templates is connected to the rack in a sliding mode in the direction perpendicular to the side templates, and a second adjusting unit used for adjusting the relative position of the two side templates is arranged on the rack. The utility model discloses a design mould and detachable press into the mould with adjustable set up, can produce not unidimensional carton, need not to prepare a plurality of production facility, have practiced thrift manufacturing cost.

Description

Box folding machine

Technical Field

The utility model belongs to the technical field of cardboard box processing equipment technique and specifically relates to a roll over box machine is related to.

Background

The box folding machine is a device for folding the cut paper boards into the paper boards, and can effectively improve the working efficiency by folding the paper boards by using the box folding machine relative to manual folding.

Chinese utility model patent publication No. CN208978336U, entitled publication No. 2019, 6 months and 14 days discloses a full-automatic high-speed box folding machine, which comprises a frame, a paperboard distributing mechanism and a paperboard conveying mechanism are arranged on the frame, roll over box mechanism and finished product conveyer belt, cardboard feed mechanism fixed connection is in frame one end, roll over box mechanism fixed connection at the frame other end, cardboard conveying mechanism fixed connection is between cardboard feed mechanism and roll over box mechanism, finished product conveyer belt fixed connection is in roll over box mechanism below, cardboard feed mechanism includes cardboard limit baffle, vertical adjusting part one, divide material conveyer belt and antiport's feed divider wheel, divide the material wheel setting to be close to the top of cardboard conveying mechanism one end at dividing the material conveyer belt, the feed divider wheel both ends are rotated and are connected on vertical adjusting part one, cardboard limit baffle and vertical adjusting part fixed connection are in the frame both sides. Roll over box mechanism including roll over vertical drive assembly of box, mould, shaping lower mould on the shaping, mould fixed connection is on rolling over the vertical drive assembly lower extreme of box on the shaping, rolls over the vertical drive assembly setting of box in the frame top to drive the shaping and go up mould vertical movement, shaping lower mould fixed connection is in the frame below, and be located under the shaping mould.

When the automatic box folding machine in the prior art works, when a paperboard is conveyed to a position between an upper forming die and a lower forming die through the paperboard conveying mechanism, the vertical driving assembly of the box folding machine drives the upper forming die to press down, the paperboard is pressed into the lower forming die, the paperboard continues to be pressed down after forming, demolding is carried out from the lower forming die, and the molded paperboard is pushed into a finished product conveying belt. However, in the prior art, the lower forming die is fixedly connected to the frame and cannot be adjusted, so that one box folding machine can only produce one carton of one specification, and when the cartons of different shapes and sizes are required to be produced, the box folding machines of different types are required to be used, and further the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a roll over box machine, can produce the cardboard box of different shape sizes, and then reduction in production cost to prior art exists not enoughly.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the box folding machine comprises a rack, a feeding part and a discharging part, wherein a shaping die, a pressing die and an output piece for driving the pressing die to slide along the vertical direction are arranged on the rack, and the pressing die is detachably connected to the output end of the output piece through a connecting piece; the rack is provided with a rectangular through hole, and the shaping die is arranged in the through hole; the shaping mold comprises a front template, a rear template and two side templates which are arranged in the vertical direction, and the front template and the rear template are parallel to each other and are perpendicular to the feeding direction of the feeding part; the side templates are perpendicular to the front template and the rear template, and the two side templates are respectively arranged on two sides of the feeding part; at least one of the front template and the rear template is connected to the rack in a sliding manner in a direction perpendicular to the front template, and a first adjusting piece for adjusting the relative positions of the front template and the rear template is arranged on the rack; at least one of the two side templates is connected to the rack in a sliding mode in the conveying direction perpendicular to the feeding portion, and a second adjusting piece used for adjusting the relative positions of the two side templates is arranged on the rack.

Relative position through first regulating part regulation front mould board and back template, the relative position through two side form boards of second regulating part regulation, and then can adjust front mould board, back template and side form board around the size that forms, make it adaptation in the cardboard box bottom plate size. The output member can be a piston cylinder, an electric cylinder or other driving equipment with similar functions, and the pressing mold matched with the bottom plate of the carton can be replaced by detaching the connecting member. The cardboard is transported to the top of through-hole through pay-off portion to make the bottom plate of cardboard aim at preceding template, back template and side form around the region that forms, output drive press this moment and move the mould and move down and press the cardboard, the curb plate of cardboard can receive the extrusion of front mould, back mould and side form, and then takes place to turn over for the bottom plate, and then accomplishes the folding course of working of cardboard box. Through adopting above-mentioned technical scheme, can adjust the relative position between preceding template, back template and the side form board, and then adjust the size of design mould to change through dismantling the connecting piece and press into the mould, thereby can process the cardboard of different models. Therefore, when the cardboard boxes with different sizes and specifications are required to be produced, only one set of equipment and a plurality of pressing dies matched with the cardboard boxes to be produced are needed, and a plurality of production equipment is not needed, so that the production cost can be reduced.

The present invention may be further configured in a preferred embodiment as: the upper ends of the front template, the rear template and the side templates are fixedly provided with guide plates along the horizontal direction, the lower surfaces of the guide plates are abutted to the table top of the rack, and round corners are arranged between the guide plates and the front template, the rear template or the side templates.

Through adopting above-mentioned technical scheme, the cardboard when removing to the through-hole top, its periphery can receive the support of deflector, helps keeping the stability of cardboard, and presses the mould and move the cardboard downwards and make the cardboard turn over when rolling over, and the fillet on the deflector is difficult for causing the damage to the cardboard, helps improving the integrity behind the cardboard box shaping.

The present invention may be further configured in a preferred embodiment as: the side form board is characterized in that sliding rods are fixedly connected to two sides of the side form board, sliding grooves perpendicular to the side form board are formed in the front form board and the rear form board in the horizontal direction, and the sliding rods penetrate through the sliding grooves and are in sliding connection with the sliding grooves.

Through adopting above-mentioned technical scheme, when adjusting preceding template, back template and side form relative slip, the spout is worn to locate by the slide bar, because preceding template fixed connection is in the frame, consequently can play the supporting role to the side form through the interact power between spout and the slide bar, and then plays certain supporting role to the back template, makes whole equipment more stable.

The present invention may be further configured in a preferred embodiment as: and one end of the sliding rod, which is far away from the side template, is fixedly connected with a limiting block.

Through adopting above-mentioned technical scheme, at slide bar and the gliding in-process of spout relatively, the slide bar can receive the spacing of stopper, is difficult for deviating from the spout, and then makes whole equipment more stable.

The present invention may be further configured in a preferred embodiment as: preceding template and frame fixed connection, first regulating part is including rotating the first screw rod of connecting in back template one side of keeping away from preceding template and being used for driving first screw rod pivoted first driving piece, first screw rod sets up and threaded connection in the frame along the horizontal direction.

Through adopting above-mentioned technical scheme, rotate through the first screw rod of first driving piece drive, can drive the back template and slide along the horizontal direction in the frame, and then can adjust the relative position between preceding template and the back template, and then the size of control design mould to produce not unidimensional carton. The first driving member may be a handle coaxially and fixedly connected to the first screw rod, or may be a motor for driving the first screw rod to rotate. And because threaded connection has the auto-lock nature, consequently press into the mould and press the cardboard and take place to turn over when rolling over, be difficult for promoting the back template and take place to slide, make the cardboard box size that produces more stable.

The present invention may be further configured in a preferred embodiment as: two equal sliding connection in frame of side form board, the second regulating part includes along the horizontal direction rotate connect in the side form board keep away from the second screw rod on another side form board one side and be used for driving second screw rod pivoted second driving piece, second screw rod and frame threaded connection.

Through adopting above-mentioned technical scheme, rotate through second driving piece drive second screw rod, can adjust the distance between two side form boards, and then the size of control design mould to produce not unidimensional carton. The second driving member may be a handle coaxially and fixedly connected to the second screw rod, or may be a motor for driving the second screw rod to rotate. And because threaded connection has the auto-lock nature, consequently press into the mould and press the cardboard and take place to turn over when rolling over, be difficult for promoting the side form and take place to slide, make the cardboard box size that produces more stable.

The present invention may be further configured in a preferred embodiment as: a plurality of first clamping grooves which are parallel to each other are formed in a guide plate connected to the side template, first positioning strips are arranged in the first clamping grooves, the first positioning strips are parallel to the transmission direction of the feeding part, and the number of the first positioning strips is two, and the first positioning strips are respectively arranged on two sides of the feeding part; a plurality of second clamping grooves which are parallel to each other are formed in the guide plate connected to the rear template, and second positioning strips are arranged in the second clamping grooves and are perpendicular to the first positioning strips.

Through adopting above-mentioned technical scheme, when the cardboard got into the design mould, cardboard towards one side of pay-off portion discharge end can butt in the second location strip, and the both sides of cardboard then can be spacing between two first location strips, and then make the position of cardboard in the design mould comparatively firm to make the cardboard box size of processing acquisition more stable.

The present invention may be further configured in a preferred embodiment as: the output part is an air cylinder fixedly connected to the rack in the vertical direction, and the output end is a piston rod of the air cylinder; the connecting piece comprises a fixed flange fixedly connected to a piston rod of the air cylinder and a fixed bolt penetrating through the fixed flange along the vertical direction, and the fixed flange is abutted against one surface, far away from the shaping mold, of the pressing mold; the fixing bolt is simultaneously in threaded connection with the fixing flange and the pressing mold.

Through adopting above-mentioned technical scheme, can make mounting flange and press and separate between the mould through unscrewing fixing bolt, and then change between pressing the mould, it is comparatively convenient to operate.

The present invention may be further configured in a preferred embodiment as: a piston rod of the air cylinder is fixedly sleeved with a fixing ring, the side wall of the fixing ring is fixedly connected with a plurality of connecting rods perpendicular to the piston rod of the air cylinder, one ends of the connecting rods, far away from the fixing ring, are fixedly connected with fixing pipes parallel to the piston rod of the air cylinder, and the fixing pipes extend downwards and are fixedly connected to one side, far away from the pressing mold, of the fixing flange; the fixing bolt penetrates through the fixing pipe, and the bolt head of the fixing bolt is abutted to one surface, far away from the fixing flange, of the fixing pipe.

Through adopting above-mentioned technical scheme, set up solid fixed ring on the piston rod of cylinder to through connecting rod and fixed pipe interconnect between solid fixed ring and mounting flange, can make fixed pipe and piston rod synchronous motion when the piston rod of the cylinder takes place to move, and then promote mounting flange jointly and press into the mould and remove, thereby make the mould of pressing into press into to cardboard box more steadily, make the cardboard box of pressing into more level and smooth stable.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the utility model discloses in, through setting design mould to adjustable preceding template, back template and side form to the setting is pressed the output that the mould was pressed and is exported the piece and can be dismantled and be connected, and then can adjust the size of design mould and change the mould that presses that is applicable to the design mould, and then can produce not unidimensional cardboard box, thereby practice thrift manufacturing cost.

2. The utility model discloses in, adjust the back template through using first screw rod, use the second screw rod to adjust the side template, can utilize the auto-lock nature of screw rod, strengthen the stability of design mould, and then make the cardboard box size that processing obtained more level and more smooth unified.

3. The utility model discloses in, through setting up first location strip and second location strip, can carry on spacingly to the position of carton board to carry out more accurate location to the position of carton on design mould, and then make the carton size that processing obtained more unified and level.

4. The utility model discloses in, through setting up mounting flange and solid fixed ring to fix solid fixed ring and the pressure mould through the bolt, can conveniently dismantle and install the mould that presses, and help improving the stability of pressing the mould on the cylinder.

Drawings

Fig. 1 is a schematic structural view of a box folding machine in an embodiment of the present invention;

FIG. 2 is a schematic structural view of a feeding portion, a shaping mold and a pressing mold in an embodiment of the present invention;

fig. 3 is a schematic structural view of the shaping mold in the embodiment of the present invention;

fig. 4 is a schematic structural view of a pressing mold in an embodiment of the present invention;

figure 5 is a schematic view of the structure of the carton prior to folding.

In the figure, 1, a frame; 11. a through hole; 12. perforating; 2. a feeding part; 21. feeding compression rollers; 22. a feed conveyor; 3. shaping the mold; 31. a front template; 32. a rear template; 33. a sideform; 34. a chute; 35. a slide bar; 36. a limiting block; 37. a support bar; 4. pressing into a mould; 5. a first adjustment member; 51. a first screw; 52. a first handle; 6. a second adjustment member; 61. a second screw; 62. a second handle; 7. a cylinder; 8. a guide plate; 81. a first card slot; 82. a first positioning bar; 83. a second card slot; 84. a second positioning bar; 91. a base plate; 92. a side plate; 10. a discharge conveyor belt; 20. a connecting member; 201. a fixing ring; 202. a connecting rod; 203. a fixed tube; 204. fixing the bolt; 205. and (5) fixing the flange.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a box folding machine, referring to fig. 1 and fig. 2, comprises a frame 1, a feeding part 2 arranged on the frame 1, a shaping mold 3 arranged on the frame 1, a pressing mold 4 arranged on the frame 1 and positioned above the shaping mold 3, and a discharging part arranged below the frame 1, wherein the feeding part comprises a feeding conveyor belt 22 and a feeding compression roller 21, and the discharging part is a discharging conveyor belt 10 arranged below the shaping mold 3. The frame 1 is provided with a through hole 11, and the shaping mold 3 is arranged in the through hole 11. The frame 1 is also provided with an output member for driving the pressing mold 4 to slide along the vertical direction.

Referring to fig. 2 and 3, the sizing die 3 includes a front die plate 31, a rear die plate 32 and two side die plates 33 which are vertically disposed on the frame 1, the front die plate 31 and the rear die plate 32 are parallel to each other and perpendicular to the conveying direction of the feeding conveyor 22, the side die plates 33 are perpendicular to the front die plate 31 and the rear die plate 32, and the side die plates 33, the front die plate 31 and the rear die plate 32 are surrounded together to form a rectangular parallelepiped. The front die plate 31 is positioned on the side of the rear die plate 32 facing the feeding end of the feeding part 2. Two sliding grooves 34 are formed in the front template 31 and the rear template 32 in the horizontal direction, two sliding rods 35 are fixedly connected to two sides of the side template 33 respectively, and the sliding rods 35 are parallel to each other and are connected to the two sliding rods 35 on the same side of the same side template 33. The sliding rod 35 penetrates through the sliding groove 34, a limiting block 36 is fixedly connected to one end, far away from the side template 33, of the sliding rod 35, and the sliding rod 35 can slide in the sliding groove 34 along the length direction of the sliding groove 34 and can also slide along the axial lead direction of the sliding rod 35. The upper ends of the front template 31, the rear template 32 and the side templates 33 are all fixedly provided with guide plates 8 along the horizontal direction, the lower surfaces of the guide plates 8 are abutted against the upper surface of the rack 1, and the upper surfaces of the guide plates 8 are equal in height with the upper surface of the feeding conveyor belt 22. The discharge side of the feeding conveyor belt 22 is connected to the guide plate 8 connected to the front template 31, and the feeding press roller 21 and the feeding conveyor belt 22 work together on the cardboard and convey the cardboard to the guide plate 8.

Referring to fig. 2 and 3, the front mold plate 31 is fixedly connected to the frame 1, and the rear mold plate 32 is slidably connected to the frame 1. A first screw 51 is rotatably connected to one side of the rear template 32 away from the front template 31, and the first screw 51 is perpendicular to the rear template 32 and is in threaded connection with the frame 1. Two support rods 37 perpendicular to the rear template 32 are fixedly arranged on one surface of the rear template 32 away from the front template 31, a through hole 12 for penetrating the support rods 37 is formed in the frame 1, and the support rods 37 are slidably connected with the through hole 12. A first driving member for driving the first screw 51 to rotate is further disposed at an end of the first screw 51 away from the rear mold plate 32, and the first driving member is a first handle 52 fixedly connected to an axial line of the first screw 51. The first handle 52 and the first screw 51 together constitute a first adjusting member 5 for adjusting the relative position between the front template 31 and the rear template 32.

Referring to fig. 2 and 3, the two sideforms 33 are rotatably connected with second screws 61 on opposite sides thereof, and the second screws 61 are perpendicular to the sideforms 33 and are threadedly connected with the frame 1. And a second driving piece for driving the second screw 61 to rotate is further arranged on one end of the second screw 61 far away from the side plate, and the second driving piece is a second handle 62 fixedly connected to the axial lead of the second screw 61. The second handle 62 and the second screw 61 together constitute a second adjusting unit 6 for adjusting the relative position between the two sideforms 33.

By rotating the first handle 52, the first screw 51 can be controlled to rotate, and the rear mold plate 32 can be controlled to slide, so that the relative position between the front mold plate 31 and the rear mold plate 32 can be adjusted. By rotating the second handle 62, the second screw 61 can be controlled to rotate, and then one side formwork 33 is controlled to move away from or close to the other side formwork 33, so that the relative position between the two side formworks 33 can be adjusted. Through the above-described adjustment steps, the size of the surrounding formation of the front mold plate 31, the rear mold plate 32, and the side mold plate 33 in the sizing mold 3 can be adjusted.

Referring to fig. 2 and 3, a plurality of first clamping grooves 81 parallel to each other are formed in the guide plate 8 connected to the side mold plate 33 along the conveying direction of the feeding conveyor belt 22, first positioning strips 82 are clamped in the first clamping grooves 81, and the two first positioning strips 82 are arranged on two sides of the feeding conveyor belt 22 respectively and used for limiting the paper boards from the two sides. A plurality of second clamping grooves 83 which are parallel to each other and perpendicular to the first clamping grooves 81 are formed in the guide plate 8 connected to the rear template 32, and second positioning strips 84 are clamped in the second clamping grooves 83 and used for limiting the movement of the paper boards in the direction towards the discharging direction of the feeding conveyor belt 22.

By inserting the first positioning strip 82 into a different first slot 81 and inserting the second positioning strip 84 into a different second slot 83, the relative positions of the first positioning strip 82 and the second positioning strip 84 can be adjusted, thereby being suitable for different cartons.

Referring to fig. 4, the output member is a cylinder 7 vertically disposed on the frame 1, and a piston rod of the cylinder 7 is detachably connected to the pressing mold 4 through a connecting member 20. The connecting piece 20 comprises a fixing flange 205 fixedly connected to the piston rod of the air cylinder 7 and a fixing bolt 204 in threaded connection with the fixing flange 205, a fixing ring 201 is fixedly arranged on the piston rod of the air cylinder 7, a connecting rod 202 is fixedly arranged on the side wall of the fixing ring 201 along the circumferential direction, a fixing pipe 203 is fixedly arranged at one end, far away from the fixing ring 201, of the connecting rod 202 along the vertical paying-off direction, and the fixing pipe 203 extends downwards and is fixedly connected to the upper surface of the fixing flange 205. The fixing bolt 204 is inserted into the fixing tube 203, and a bolt head of the fixing bolt 204 extends out from one end of the fixing tube 203 far away from the fixing flange 205 and abuts against an upper end face of the fixing tube 203. The lower end of the fixing bolt 204 passes through the fixing flange 205 and is screwed with the press-fitting die 4.

Through twisting fixing bolt 204, can dismantle and install pressing into mould 4, and then change adaptation in 3 sizes of design mould and press into mould 4 to produce not unidimensional cardboard box.

The implementation principle and the using method of the embodiment are as follows:

the board is cut in advance before passing through the box folding machine, and the cut board is shown in fig. 5 and comprises a bottom plate 91 and side plates 92. The cut paperboard moves forward under the action of the feeding press roller 21 and the feeding conveyor belt 22 and is limited by the first positioning strip 82 until one side of the paperboard far away from the feeding conveyor belt 22 abuts against the second positioning strip 84. At the moment, the bottom plate 91 is over against the shaping mold 3, then the air cylinder 7 drives the pressing mold 4 to move downwards, the paperboard is pressed to be turned over, the bottom plate 91 can move downwards, the side plates 92 can be turned over upwards under the action of the front template 31, the rear template 32 and the side templates 33, and therefore the box folding process of the paperboard box is completed. Then press into mould 4 and continue to promote the cardboard box that finishes folding downwards, make the cardboard box that finishes folding fall on exit conveyor 10, the cardboard box is fixed as the box-packed under the effect of gluing or other moulds to carry out subsequent processing on exit conveyor 10.

When cardboard boxes of different sizes are to be produced, the positions of the rear template 32 and the side templates 33 relative to the machine frame 1 can be adjusted by holding the first handle 52 and the second handle 62 to rotate, and then the size of the sizing die 3 can be adjusted to adapt to different cardboard bottom plates 91. And then the fixing bolt 204 is disassembled and the press-forming die 4 is disassembled, so that the press-forming die 4 adaptive to the shaping die 3 is replaced. The positions of the first positioning strip 82 and the second positioning strip 84 are adjusted to be matched with the sizes of the paperboard side plates 92, so that the paperboard boxes with different sizes can be produced, when the paperboard boxes with various models need to be produced, a plurality of equipment lines do not need to be prepared, only different pressing dies 4 need to be replaced, and the production cost is saved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, size and principle of the utility model should be covered within the protection scope of the utility model.

Claims (9)

1. Roll over box machine, including frame (1), pay-off portion (2) and ejection of compact portion, its characterized in that: the automatic forming machine is characterized in that a forming die (3), a pressing die (4) and an output piece for driving the pressing die (4) to slide along the vertical direction are arranged on the rack (1), and the pressing die (4) is detachably connected to the output end of the output piece through a connecting piece (20); a rectangular through hole (11) is formed in the rack (1), and the shaping mold (3) is arranged in the through hole (11); the shaping mold (3) comprises a front template (31), a rear template (32) and two side templates (33) which are arranged in the vertical direction, wherein the front template (31) and the rear template (32) are parallel to each other and are perpendicular to the feeding direction of the feeding part (2); the side templates (33) are perpendicular to the front template (31) and the rear template (32), and the two side templates (33) are respectively arranged on two sides of the feeding part (2); at least one of the front template (31) and the rear template (32) is connected to the rack (1) in a sliding manner in the feeding direction of the feeding part (2), and the rack (1) is provided with a first adjusting piece (5) for adjusting the relative position of the front template (31) and the rear template (32); at least one of the two side templates (33) is connected to the rack (1) in a sliding mode in the transmission direction perpendicular to the feeding portion (2), and a second adjusting piece (6) used for adjusting the relative position of the two side templates (33) is arranged on the rack (1).

2. A box folding machine according to claim 1, characterized in that: the fixed deflector (8) that is provided with of horizontal direction is followed to the upper end of preceding template (31), back template (32) and side form (33), the lower surface butt of deflector (8) in the mesa of frame (1), all be provided with the fillet between deflector (8) and preceding template (31), deflector (8) and back template (32) and deflector (8) and side form (33).

3. A box folding machine according to claim 2, characterized in that: preceding template (31) and frame (1) fixed connection, first regulating part (5) are including rotating first screw rod (51) and the first driving piece that is used for driving first screw rod (51) pivoted of keeping away from preceding template (31) one side in back template (32), first screw rod (51) set up and threaded connection in frame (1) along the horizontal direction.

4. A box folding machine according to claim 3, characterized in that: the side form (33) is characterized in that sliding rods (35) are fixedly connected to two sides of the side form (33), sliding grooves (34) perpendicular to the side form (33) are formed in the front form (31) and the rear form (32) in the horizontal direction, and the sliding rods (35) penetrate through the sliding grooves (34) and are in sliding connection with the sliding grooves (34).

5. A box folding machine according to claim 4, characterized in that: and one end of the sliding rod (35) far away from the side template (33) is fixedly connected with a limiting block (36).

6. A box folding machine according to claim 2, characterized in that: two equal sliding connection in frame (1) of side form board (33), second adjusting part (6) include along the horizontal direction rotate connect in side form board (33) keep away from second screw rod (61) on another side form board (33) one side and be used for driving second screw rod (61) pivoted second driving piece, second screw rod (61) and frame (1) threaded connection.

7. A box folding machine according to claim 2, characterized in that: a plurality of first clamping grooves (81) which are parallel to each other are formed in a guide plate (8) connected to the side template (33), a first positioning strip (82) is arranged in each first clamping groove (81), the first positioning strips (82) are parallel to the transmission direction of the feeding portion (2), and two first positioning strips (82) are arranged on two sides of the feeding portion (2) respectively; a plurality of second clamping grooves (83) which are parallel to each other are formed in the guide plate (8) connected to the rear template (32), second positioning strips (84) are arranged in the second clamping grooves (83), and the second positioning strips (84) are perpendicular to the first positioning strips (82).

8. A box folding machine according to claim 1, characterized in that: the output part is an air cylinder (7) fixedly connected to the rack (1) along the vertical direction, and the output end is a piston rod of the air cylinder (7); the connecting piece (20) comprises a fixed flange (205) fixedly connected to a piston rod of the air cylinder (7) and a fixed bolt (204) penetrating through the fixed flange (205) along the vertical direction, and the fixed flange (205) abuts against one surface, far away from the shaping mold (3), of the pressing mold (4); the fixing bolt (204) is simultaneously in threaded connection with the fixing flange (205) and pressed into the die (4).

9. A box folding machine according to claim 8, characterized in that: a piston rod of the air cylinder (7) is fixedly sleeved with a fixing ring (201), the side wall of the fixing ring (201) is fixedly connected with a plurality of connecting rods (202) perpendicular to the piston rod of the air cylinder (7), one ends, far away from the fixing ring (201), of the connecting rods (202) are fixedly connected with fixing pipes (203) parallel to the piston rod of the air cylinder (7), and the fixing pipes (203) extend downwards and are fixedly connected to one side, far away from the pressing mold (4), of the fixing flange (205); the fixing bolt (204) is arranged in the fixing pipe (203) in a penetrating mode, and the bolt head of the fixing bolt (204) is abutted to the bottom face of the fixing pipe (203) far away from the fixing flange (205).

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