CN217894666U - Tensioning structure of automatic folding machine - Google Patents

Abstract

The utility model discloses an automatic tensioning structure of folder, relate to the field of folder, wherein be provided with the conflict device that is used for the folding wet piece of cloth upper surface of contradicting in the frame, the conflict device includes the sliding block, tensioning piece and first lift cylinder, the sliding block slides along folding wet piece of cloth width direction and connects in the frame, the tensioning piece slides along vertical direction and connects on the sliding block, the terminal surface is used for inconsistent with folding wet piece of cloth upper surface under the tensioning piece, first lift cylinder sets up on the sliding block, first lift cylinder is located directly over the tensioning piece, the vertical setting of length direction of first lift cylinder, the tensioning piece sets up on the piston rod of first lift cylinder, be provided with drive arrangement in the frame, drive arrangement is used for driving the sliding block and slides. The utility model has the advantages of the following and the effects, the problem of fold probability possibly appearing in the folding wet piece of cloth not only can be alleviated to this tension structure, and simple structure convenient operation.

Description

Tensioning structure of automatic folding machine

Technical Field

The utility model belongs to the technical field of the folder and specifically relates to an automatic straining structure of folder is related to.

Background

As a cleaning product, the wet tissue has the functions of moistening skin, maintaining or disinfecting and cleaning, is convenient to carry and is widely used in daily life. In order to improve the folding efficiency in production, wet towel folding machines have been developed.

At present, the chinese utility model that the grant official publication number is CN216509628U discloses an automatic folder of wet piece of cloth, which comprises a frame, be provided with feed mechanism and folding mechanism in the frame, feed mechanism includes material loading roller and transmission roller, the material loading roller is convoluteed and is remained the folding wet piece of cloth, treat that the folding wet piece of cloth passes through the transmission roller and move to the guide roll, treat that the folding wet piece of cloth is provided with the tensioning roller on the route from feed mechanism to folding mechanism, treat that the folding wet piece of cloth passes through the transmission roller and move behind the guide roll, under the guide effect of guide roll, treat that the folding wet piece of cloth moves to folding mechanism, folding mechanism folds wet piece of cloth.

As the tensioning roller is arranged on the rack, the length direction of the wet tissue to be folded is always in the tensioning state in the transportation process, the problem that the wet tissue is loosened in the transportation process is solved, the folding mechanism still has the possibility of generating folds in the width direction after the wet tissue is folded, and therefore, how to improve the tensioning performance in the width direction after the wet tissue is folded is improved, and the problem that the probability of the folds of the folded wet tissue is reduced needs to be relieved.

SUMMERY OF THE UTILITY MODEL

In order to improve the tensibility of the folded wet tissue in the width direction, the probability that the folded wet tissue has folds is reduced, the utility model provides an automatic tensioning structure of a folding machine.

The utility model provides a pair of automatic tensioning texture of folder adopts following technical scheme:

the utility model provides an automatic tensioning texture of folder, includes the frame, be provided with the conflict device that is used for the folding wet piece of cloth upper surface of contradicting in the frame, the conflict device includes sliding block, tensioning piece and first lift cylinder, sliding block slides along folding wet piece of cloth width direction and connects in the frame, the tensioning piece slides along vertical direction and connects on sliding block, the tensioning piece down the terminal surface be used for with folding wet piece of cloth upper surface inconsistent, first lift cylinder sets up on sliding block, first lift cylinder is located directly over the tensioning piece, the vertical setting of length direction of first lift cylinder, the tensioning piece sets up on the piston rod of first lift cylinder, be provided with drive arrangement in the frame, drive arrangement is used for driving sliding block and slides.

Through adopting the above technical scheme, folding wet piece of cloth is at the in-process of conveying, first lift cylinder drives tensioning block and upwards adjusts, drive arrangement drives the sliding block when sliding to being close to folding wet piece of cloth width direction, make the tensioning block be located folding wet piece of cloth top, first lift cylinder drives tensioning block and downwards adjusts afterwards, make under the tensioning block terminal surface contradict in folding wet piece of cloth upper surface, drive the sliding block through drive arrangement and slide to keeping away from folding wet piece of cloth direction, make the sliding block drive the tensioning block and exert a tensile force along folding wet piece of cloth width direction to folding wet piece of cloth, reduce the probability that folding wet piece of cloth probably appears the fold.

Optionally, the driving device is provided with two collision devices, and the driving device is used for driving the two collision devices to alternatively operate.

By adopting the technical scheme, the driving device drives the two conflict devices to alternately work, the tension force which is far away from the width direction of the folded wet tissue is applied to the folded wet tissue by one conflict device, the tension force which is close to the width direction of the folded wet tissue is applied to the other conflict device, the two tension blocks repeatedly and continuously apply the tension force to the folded wet tissue, and the probability that folds of the folded wet tissue appear in the conveying process is reduced as far as possible.

Optionally, drive arrangement includes motor, flexible cover and two telescopic links, the motor sets up in the frame, the vertical setting of motor output shaft, flexible cover sets up on the output shaft of motor, the length direction of flexible cover is parallel with folding wet piece of cloth, flexible cover is located between two sliding blocks, two the one end of telescopic link all slides and connects in flexible cover, two telescopic link and two the sliding block one-to-one, two the other end of telescopic link rotates respectively to be connected in two on the sliding block.

Through adopting above-mentioned technical scheme, in operation, the motor drives the clockwise or anticlockwise rotation of flexible cover, it realizes the tensioning piece supply to rotate one of them slider of in-process and be close to folding wet piece of cloth, another slider just keeps away from folding wet piece of cloth and carries out the tensioning to folding wet piece of cloth, the extension length of telescopic link changes along with the change of sliding block position, realize rotating the sliding block that connects on the telescopic link and slide along folding wet piece width direction, the tensioning piece is exerted the tensile force to the width direction of folding wet piece of cloth all the time, improve the tensioning effect of tensioning piece to folding wet piece of cloth as far as possible, moreover, the steam generator is simple in structure.

Optionally, the lower terminal surface of tensioning piece rotates the connection gyro wheel, the roller shaft of gyro wheel sets up along the width direction of folding wet piece of cloth, the lateral wall of gyro wheel is inconsistent with the upper surface of folding wet piece of cloth.

Through adopting above-mentioned technical scheme, in operation, the direction of delivery of folding wet piece of cloth is gone on along length direction all the time, can produce certain frictional force when the upper surface of folding wet piece of cloth and tensioning piece lower extreme face conflict, rotates the connection gyro wheel through the lower extreme face at the tensioning piece for the frictional force that folding wet piece of cloth received at the in-process of tensioning reduces, has weakened the frictional damage that folding wet piece of cloth caused of terminal surface direct conflict under the tensioning piece.

Optionally, a supporting rod is arranged on the sliding block, the supporting rod is vertically arranged in the length direction, the first lifting cylinder is connected to the supporting rod in a sliding mode, and a locking assembly used for fixing the first lifting cylinder is arranged on the supporting rod.

Through adopting above-mentioned technical scheme, when folding wet piece of cloth thickness changes, need adjust the position of tensioning piece, when first lift cylinder drives the rising or decline of tensioning piece and can not let the gyro wheel lateral wall conflict at folding wet piece of cloth surface, the position through sliding and adjusting first lift cylinder drives the gyro wheel lateral wall and contradicts on folding wet piece of cloth surface, slide the back again through locking the subassembly with first lift cylinder locking on the bracing piece, the controllability through position about first lift cylinder has improved the commonality of whole conflict device.

Optionally, the locking subassembly includes the fixed plate, slides cover and first bolt, it slides along vertical direction to overlap and locates on the bracing piece to slide the cover, fixed plate one end set up in slide on the cover lateral wall, first lift cylinder sets up on the fixed plate, first bolt threaded connection slides on the cover lateral wall, the afterbody of first bolt is contradicted on the bracing piece.

Through adopting above-mentioned technical scheme, reciprocating at bracing piece length direction and sliding the cover and drive the fixed plate and carry out position control, reciprocating of fixed plate drives the rising or the decline of first lift cylinder for the tensioning piece is contradicted in folding wet piece surface, and the rethread first bolt will slide the cover and fix on the bracing piece after sliding, realizes the regulation to first lift cylinder height, simple structure.

Optionally, a repressing plate for maintaining the close contact state of the two layers of folded wet tissues is arranged on the frame, and the repressing plate is abutted against the folded surface of the wet tissues.

Through adopting above-mentioned technical scheme, the double-pressure board is contradicted on two-layer wet piece of cloth of folding, expels the air between the two-layer wet piece of cloth, has improved the ability of tearing of wet piece of cloth.

Optionally, a rotating assembly used for adjusting the rotating angle of the composite pressing plate is arranged between the composite pressing plate and the rack, the rotating assembly comprises a rotating roller, a second bolt and a fixed rotating rod, one end of the rotating roller is arranged on the lower end face of the composite pressing plate, the length direction of the rotating roller is perpendicular to the wet tissue, the other end of the rotating roller is rotatably connected onto the fixed rotating rod, the second bolt is in threaded connection with the side wall of the fixed rotating rod, the tail of the second bolt is abutted against the side wall of the rotating roller, and the fixed rotating rod is arranged on the rack.

Through adopting above-mentioned technical scheme, when folding wet piece of cloth width changed, need adjust the angular position of repressing plate, the angle that drives the repressing plate through rotatory live-rollers changes for the repressing plate covers folding wet piece of cloth surface completely, and rethread second bolt is fixed the live-rollers on fixed bull stick after rotatory, and the controllability of repressing plate repressing angle has improved the commonality of repressing plate.

Optionally, a lifting assembly used for adjusting the height of the composite pressing plate is arranged on the rack, the lifting assembly comprises a second lifting cylinder, the second lifting cylinder is arranged on the rack, the length direction of the second lifting cylinder is vertically arranged, the second lifting cylinder is located below the rotating assembly, and the fixed rotating rod is arranged on a piston rod of the second lifting cylinder.

Through adopting above-mentioned technical scheme, when the thickness of folding wet piece of cloth changes, need adjust the high position of repressing board, through the rising and the decline of adjusting second lift cylinder, be fixed in the change of fixed bull stick position on the second lift cylinder piston for repressing board and folding wet piece of cloth are inconsistent, and the position change of fixed bull stick drives repressing board and adjusts suitable conflict position and carry out the repression.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the tension force along the width direction of the wet tissue can be repeatedly and continuously applied to the folded wet tissue, and the probability that the folded wet tissue is likely to have wrinkles is reduced.

2. The roller is used for weakening friction damage caused by the fact that the tensioning block abuts against the folded wet tissue.

3. The double pressing plate is abutted against the two layers of folded wet tissues to expel air between the two layers of wet tissues, so that the tearing resistance of the wet tissues is improved.

4. The position of the tensioning block and the position of the repressing plate can be adjusted within a certain range, the structure is simple, the operation is convenient, and the universality of the tensioning structure is further improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic structural view of the contacting device in fig. 1.

Fig. 3 is a schematic structural view of the locking assembly of fig. 1.

Fig. 4 is a schematic structural diagram of the complex pressure plate, the rotating assembly and the lifting assembly in fig. 1.

Figure 5 is a cross-sectional view of the platen and rotating assembly of figure 1.

Description of reference numerals:

1. a frame; 11. perforating; 12. a base plate; 13. a support bar; 14. a placement groove; 15. a slide bar; 2. A collision device; 21. a sliding block; 22. a tensioning block; 23. a first lifting cylinder; 24. a sliding groove; 25. a hinge plate; 26. a roller; 3. a drive device; 31. a motor; 32. a telescopic sleeve; 33. a telescopic rod; 4. a locking assembly; 41. a fixing plate; 42. sliding the sleeve; 43. a first bolt; 5. a composite pressing plate; 6. a rotating assembly; 61. a rotating roller; 62. a second bolt; 63. fixing the rotating rod; 64. a rotating groove; 7. a lifting assembly; 71. a second lifting cylinder; 72. and a support plate.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 to 5.

The embodiment of the application discloses automatic straining structure of folder, refer to fig. 1, including frame 1, frame 1 includes bottom plate 12, be provided with drive arrangement 3 on the bottom plate 12, drive arrangement 3 includes motor 31, telescope tube 32 and two telescopic links 33, standing groove 14 has been seted up to bottom plate 12 up end, fixed mounting motor 31 on the interior diapire of standing groove 14, the vertical setting of output shaft of motor 31, the length direction level of telescope tube 32, telescope tube 32 fixed connection is on motor 31's output shaft, telescope tube 32 is located bottom plate 12's up end top, two telescopic links 33 are located the both sides of telescope tube 32 respectively, the length direction level of two telescopic links 33, the one end of two telescopic links 33 all slides and connects in telescope tube 32.

Referring to fig. 1, frame 1 still includes slide bar 15, and slide bar 15 has two, and two slide bar 15 length direction all are parallel with folding wet piece of cloth width direction, and two slide bar 15 distribute along wet piece of cloth length direction, and two slide bar 15 are located telescopic link 33 both sides respectively, and the equal fixed connection of two slide bar 15 all sets up conflict device 2 in two slide bar 15 in the 12 up end of bottom plate, and conflict device 2 is used for conflicting the upper surface of folding wet piece of cloth.

Referring to fig. 1 and 2, the abutting device 2 comprises a sliding block 21, a tensioning block 22 and a first lifting cylinder 23, the sliding block 21 is connected to the sliding rod 15 in a sliding manner, the sliding block 21 is rotatably connected with one end of a telescopic rod 33, a sliding groove 24 is formed in the vertical side wall, close to the folding wet tissue, of the sliding block 21, and the length direction of the sliding groove 24 is vertical downward.

Referring to fig. 1 and 2, the length direction of the tension block 22 is parallel to the folded wet tissue, the side wall of one end of the tension block 22, which is far away from the folded wet tissue, is connected with the sliding groove 24 in a sliding manner, the lower end surface of the tension block 22 is fixedly connected with the hinged plate 25, the hinged plate 25 is vertically arranged in the length direction, the two hinged plates 25 are rotatably connected with the roller 26, the axial direction of the roller 26 is horizontal to the width direction of the folded wet tissue, and the side wall of the roller 26 is abutted against the upper surface of the wet tissue.

Referring to fig. 1 and 2, first lift cylinder 23 is located directly over tensioning block 22, and first lift cylinder 23 sets up on sliding block 21, and first lift cylinder 23 is close to the piston rod fixed connection in tensioning block 22 of wet piece of cloth one end to realize that drive arrangement 3 drives conflict device 2 and rotate in turn, exert tensile force to the width direction of wet piece of cloth all the time.

Referring to fig. 2 and 3, when the thickness of the folded wet tissue changes and the rising and falling of the tension block 22 cannot meet the condition that the side wall of the roller 26 abuts against the upper surface of the wet tissue, the first lifting cylinder 23 is vertically slid to adjust the position of the tension block 22 so that the side wall of the roller 26 abuts against the upper surface of the wet tissue, the rising or falling of the first lifting cylinder 23 drives the position of the tension block 22 to change, and the first lifting cylinder 23 is locked by the locking assembly 4 after the position adjustment.

Referring to fig. 2 and 3, a support rod 13 is fixedly connected to an upper end surface of the sliding block 21, a locking assembly 4 is arranged on the support rod 13, the locking assembly 4 includes a fixing plate 41, a sliding sleeve 42 and a first bolt 43, the sliding sleeve 42 is slidably sleeved on the support rod 13, the first bolt 43 is in threaded connection with a side wall of the sliding sleeve 42, when the upper and lower positions of the sliding sleeve 42 are well adjusted, the first bolt 43 is screwed to enable the tail of the first bolt 43 to abut against the side wall of the support rod 13, and the sliding sleeve 42 is fixed on the support rod 13; the lower terminal surface of fixed plate 41 is on a parallel with folding wet piece of cloth width direction, and the one end fixed connection of fixed plate 41 is in the lateral wall of the cover 42 that slides, and perforation 11 has been seted up to the up end of fixed plate 41, and first lift cylinder 23 is located perforation 11 and is fixed in on fixed plate 41 to the change of the first lift cylinder 23 position of the upper and lower slip drive of the cover 42 that slides, make the lateral wall of gyro wheel 26 can contradict in folding wet piece of cloth upper surface.

Referring to fig. 1 and 4, in the process of folding the wet wipes, air is provided between the two wet wipes, and in order to maintain the two folded wet wipes in a close contact state, a double pressing plate 5 for expelling the air between the two wet wipes is arranged on the rack 1, and a rotating assembly 6 for adjusting the rotating angle of the double pressing plate 5 and a lifting assembly 7 for adjusting the height position of the double pressing plate 5 are arranged on the rack 1, so that the double pressing plate 5 is abutted against and completely covered on the wet wipes.

Referring to fig. 4 and 5, the repressing plate 5 abuts against the surface of the folded position of the wet tissue, the lower end surface of the repressing plate 5 is provided with a rotating assembly 6, the rotating assembly 6 comprises a rotating roller 61, a second bolt 62 and a fixed rotating rod 63, the rotating roller 61 is fixedly connected to the lower end surface of the repressing plate 5, the length direction of the rotating roller 61 is perpendicular to the repressing plate 5, the upper end of the fixed rotating rod 63 is recessed inwards to form a rotating groove 64, the lower end of the rotating roller 61 is rotatably connected in the rotating groove 64, the second bolt 62 is in threaded connection with the side wall of the fixed rotating rod 63, when the repressing plate 5 rotates to a proper angle, the second bolt 62 is screwed to enable the tail of the second bolt 62 to abut against the side wall of the rotating roller 61, and the repressing plate 5 is completely covered on the wet tissue.

Referring to fig. 4 and 5, when the thickness of the folded wet tissue changes, the height of the composite pressing plate 5 is adjusted by the lifting assembly 7, the lifting assembly 7 includes a second lifting cylinder 71 and a supporting plate 72, the supporting plate 72 is located below the lower end face of the composite pressing plate 5, the supporting plate 72 is located above the wet tissue, the supporting plate 72 is fixedly connected to the bottom plate 12, the length direction of the second lifting cylinder 71 is vertically upward, the bottom end of the second lifting cylinder 71 is fixedly connected to the upper end face of the supporting plate 72, a piston rod of one end of the second lifting cylinder 71 close to the composite pressing plate 5 is fixedly connected to the fixed rotating rod 63, and the second lifting cylinder 71 ascends or descends to drive the composite pressing plate 5 to be adjusted to a proper position and abut against the surface of the wet tissue.

The implementation principle of the tensioning structure of the automatic folding machine in the embodiment of the application is as follows:

the motor 31 drives the telescopic sleeve 32 to swing back and forth, the rotation of the telescopic sleeve 32 drives one of the sliding blocks 21 to approach along the width direction of the folded wet tissues to realize the supply of the tensioning block 22, and the other sliding block 21 is far away from the folded wet tissues to tension the folded wet tissues.

The rotation of expansion sleeve 32 drives one of them sliding block 21 and keeps away from folding wet piece of cloth and tightens folding wet piece of cloth, another sliding block 21 just is close to along folding wet piece of cloth width direction and realizes that the tensioning block 22 supplies, the first lift cylinder 23 of in-process that is close to drives tensioning block 22 and upwards adjusts, make tensioning block 22 and folding wet piece of cloth throw off, when sliding block 21 removes along the direction of keeping away from folding wet piece of cloth, first lift cylinder 23 drives tensioning block 22 and adjusts downwards, make the terminal surface contradict in folding wet piece of cloth upper surface under the tensioning block 22, then the rotation of telescopic link 33 drives sliding block 21 and keeps away from folding and tightens folding wet piece of cloth, two sliding block 21 operate in turn, it exerts the tensile force to folding wet piece of cloth to last duration.

When the thickness of the folded wet tissue changes, the first bolt 43 is loosened and the sliding sleeve 42 is moved up and down when the piston rod of the first lifting cylinder 23 rises or falls to prevent the roller 26 from abutting against the surface of the wet tissue, the first bolt 43 is screwed after the first lifting cylinder 23 is adjusted to a proper position, the sliding sleeve 42 is fixed on the support rod 13, and the side wall of the roller 26 abuts against the upper surface of the folded wet tissue.

When the width of the wet tissue changes and the repressing plate 5 can not completely cover the wet tissue, the second bolt 62 is loosened, the rotating roller 61 is rotated to be adjusted to a proper position and then the second bolt 62 is screwed down, so that the rotating roller 61 is fixed in the rotating groove 64, and the repressing plate 5 completely covers the wet tissue.

When the thickness of the wet tissue changes and the repressing plate 5 can not be abutted against the surface of the wet tissue, the piston rod of the second lifting cylinder 71 is adjusted to ascend or descend to drive the fixed rotating rod 63 to ascend or descend, so that the repressing plate 5 is abutted against the surface of the folded wet tissue.

Above is the preferred embodiment of the utility model, not limit according to this the utility model discloses a protection scope, the event: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides an automatic tensioning texture of folder which characterized in that: including frame (1), be provided with conflict device (2) that are used for conflicting folding wet piece of cloth upper surface in frame (1), conflict device (2) are including sliding block (21), tensioning piece (22) and first lift cylinder (23), sliding block (21) slides along folding wet piece of cloth width direction and connects on frame (1), tensioning piece (22) slide along vertical direction and connect on sliding block (21), the terminal surface is used for conflicting with folding wet piece of cloth upper surface under tensioning piece (22), first lift cylinder (23) set up on sliding block (21), first lift cylinder (23) are located directly over tensioning piece (22), the vertical setting of length direction of first lift cylinder (23), tensioning piece (22) set up on the piston rod of first lift cylinder (23), be provided with drive arrangement (3) on frame (1), drive arrangement (3) are used for driving sliding block (21) and slide.

2. The tensioning structure of an automatic folding machine according to claim 1, characterized in that: the number of the collision devices (2) on the driving device (3) is two, and the driving device (3) is used for driving the two collision devices (2) to operate alternately.

3. The tensioning structure of an automatic folding machine according to claim 2, characterized in that: drive arrangement (3) are including motor (31), flexible cover (32) and two telescopic link (33), motor (31) set up in frame (1), the vertical setting of motor (31) output shaft, flexible cover (32) set up on the output shaft of motor (31), the length direction of flexible cover (32) is parallel with folding wet piece of cloth, flexible cover (32) are located between two sliding block (21), two the one end of telescopic link (33) is all slided and is connected in flexible cover (32), two telescopic link (33) and two sliding block (21) one-to-one, two the other end of telescopic link (33) rotates respectively to be connected in two on sliding block (21).

4. The tensioning structure of an automatic folding machine according to claim 1, characterized in that: the lower terminal surface of tensioning piece (22) is rotated and is connected gyro wheel (26), the roller shaft of gyro wheel (26) sets up along the width direction of folding wet piece of cloth, the lateral wall of gyro wheel (26) is inconsistent with the upper surface of folding wet piece of cloth.

5. The tensioning structure of an automatic folding machine according to claim 1, characterized in that: be provided with bracing piece (13) on sliding block (21), bracing piece (13) length direction vertical setting, first lift cylinder (23) slide and connect on bracing piece (13), be provided with on bracing piece (13) and be used for locking subassembly (4) fixed with first lift cylinder (23).

6. The tensioning structure of an automatic folding machine according to claim 5, characterized in that: locking subassembly (4) include fixed plate (41), slide cover (42) and first bolt (43), slide cover (42) along vertical direction slide the cover locate bracing piece (13) on, fixed plate (41) one end set up in slide on cover (42) lateral wall, first lift cylinder (23) set up on fixed plate (41), first bolt (43) threaded connection is on sliding cover (42) lateral wall, the afterbody of first bolt (43) is contradicted on bracing piece (13).

7. The tensioning structure of an automatic folding machine according to claim 1, characterized in that: the frame (1) is provided with a repressing plate (5) for maintaining the close contact state of two layers of folded wet tissues, and the repressing plate (5) is abutted against the folding surface of the wet tissues.

8. The tensioning structure of an automatic folding machine according to claim 7, characterized in that: be provided with rotating assembly (6) that are used for adjusting double pressing board (5) turned angle between double pressing board (5) and frame (1), rotating assembly (6) include live-rollers (61), second bolt (62) and fixed bull stick (63), the one end of live-rollers (61) sets up in the lower terminal surface of double pressing board (5), the length direction perpendicular to wet piece of cloth of live-rollers (61), the other end of live-rollers (61) rotates and connects on fixed bull stick (63), second bolt (62) threaded connection is in fixed bull stick (63) lateral wall, the afterbody of second bolt (62) is contradicted in live-rollers (61) lateral wall, fixed bull stick (63) set up in frame (1).

9. The tensioning structure of an automatic folding machine according to claim 8, characterized in that: the lifting assembly (7) used for adjusting the height of the composite pressing plate (5) is arranged on the rack (1), the lifting assembly (7) comprises a second lifting cylinder (71), the second lifting cylinder (71) is arranged on the rack (1), the second lifting cylinder (71) is vertically arranged in the length direction, the second lifting cylinder (71) is located below the rotating assembly (6), and the fixed rotating rod (63) is arranged on a piston rod of the second lifting cylinder (71).

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