CN111761875A - Rolling assembly - Google Patents

Abstract

The rolling assembly comprises a supporting shell, a rolling shaft is arranged on the supporting shell, the rolling shaft is arranged in a rotating and axial moving mode, a rolling sleeve seat device is arranged at the front portion of the supporting shell and comprises a sleeve seat and a profiling, the profiling is connected to the front end of the sleeve seat, a wedge block portion is arranged at the front end of the rolling shaft, a movable block device is connected to the front end of the rolling shaft and comprises an inner movable block and an outer movable block, a wedge hole is formed in the inner movable block and matched with the wedge block portion, a first bearing is connected between the inner movable block and the outer movable block, the outer movable block is located in the sleeve seat, a support shaft is further arranged on the outer movable block, a second bearing is arranged on the support shaft, a rolling wheel is arranged on the second bearing, and the rolling wheel is located in an inner hole of the. The movable block device is adopted, so that the second bearing for mounting the rolling wheel can adopt a smaller bearing, and the structure is compact; the first bearing can adopt a bearing with a larger size, and the service life of the first bearing is prolonged; the first bearing and the second bearing are stressed in a single direction respectively, so that bidirectional positive and negative stress is avoided, the service life is prolonged, and a foundation is provided for the arrangement of the end face sealing structure.

Description

Rolling assembly

technical field

The present invention relates to paper cup or paper bowl forming equipment, in particular to a rolling assembly.

Background technique

In the production process of paper containers such as paper cups or paper bowls, the bottom needs to be rolled by rolling equipment for compaction, embossing or embossing.

The bearing life of the rolling wheel is low during use.

At present, the structure of the rolling equipment is relatively complex, the assembly is troublesome, and the running stability is poor.

The rolling wheel used for rolling is arranged on the live block device. The rolling wheel is driven by the live block device to move eccentrically. The live block device cooperates with the rolling shaft with the wedge part, and the rolling shaft rotates and moves axially. The pressure roller cooperates with the mold for rolling. When designing the oil circuit in the rolling equipment for lubrication, it is necessary to avoid the leakage of lubricating oil affecting the contamination of the paper container at the rolling wheel, and also to prevent the paper powder at the rolling wheel from entering the oil circuit and affecting the transmission.

Among them, the rolling wheel is driven by the rolling shaft. When the rolling shaft needs to move axially and rotate, it is very important to ensure the stable operation of the rolling shaft.

SUMMARY OF THE INVENTION

In view of the technical problems existing in the background art, the technical problem solved by the present invention aims to provide a new type of rolling assembly.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical scheme: the rolling assembly includes a rolling mechanism, the rolling mechanism includes a support shell, and the support shell is provided with a rolling shaft, and the rolling shaft is arranged to rotate and move axially, and It is characterized in that: the front part of the support shell is also provided with a rolling sleeve seat device, the rolling sleeve seat device includes a sleeve seat and a back mold, the back mold is connected to the front end of the sleeve seat, and the front end of the rolling shaft is provided with a wedge part, the roller The front end of the pressing shaft is connected with a live block device. The live block device includes an inner live block and an outer live block. The inner live block is provided with a wedge hole to cooperate with the wedge block portion. A first bearing is connected between the inner live block and the outer live block. The movable block is located in the sleeve seat, the outer movable block is also provided with a support shaft, the support shaft is provided with a second bearing, the second bearing is provided with a rolling wheel, and the rolling wheel is located in the inner hole of the mold.

The sleeve seat is located in the front support hole of the support shell, a third bearing is arranged between the front support hole and the sleeve seat, the sleeve seat is connected with a guide rod, and the support shell is provided with a guide sleeve or a guide hole to connect with the guide rod.

The guide rod is equipped with a tension return spring, the tension return spring is located between the sleeve seat and the support shell, and the end of the guide rod is also equipped with a locking nut.

The outer movable block is provided with a disk portion, the sleeve seat is provided with an annular groove, the circumferential edge of the disk portion is surrounded by the annular groove, the circumferential edge of the disk portion is matched in the annular groove, and the annular groove is slidably matched with the disk portion The sleeve seat is provided with an entry channel, the entry channel is communicated with the annular groove, the front side of the annular groove is provided with a sealing ring installation groove, and the sealing ring installation groove is provided with a sealing ring.

The rolling shaft is connected with a rotating transmission wheel, the rotating transmission wheel is located outside the support shell, the support shell is arranged on the first moving plate, the rolling shaft is also connected with the second moving plate, the first moving plate is connected on the first transverse track, and the first moving plate is connected to the first horizontal rail. The two moving plates are connected to the second transverse track, and the base is provided with a rotating drive vertical shaft. The rotating drive vertical shaft is connected with a forward cam and a backward cam. The first moving plate is provided with a front roller, and the front roller is located in front of the forward cam. On the side, the forward cam is matched with the front roller, the first moving plate is also matched with the first spring device, the first spring device is connected between the first moving plate and the base, and the second moving plate is provided with a rear roller , the rear roller is located on the rear side of the backward cam, the backward cam is matched with the rear roller, the second moving plate is also connected with the second spring device, and the second spring device is connected between the second moving plate and the first moving plate. between.

The forward cam and the backward cam are two cams on a conjugate cam.

A fourth bearing is arranged between the rotary drive vertical shaft and the base, the lower part of the rotary drive vertical shaft is connected to an input gear device, the input gear device is located below the lower port of the base, and the forward cam and the backward cam are arranged on the first moving plate and the second moving plate below.

A transmission sleeve is connected to the rolling shaft for transmission, a transmission seat is arranged on the second moving plate, the transmission sleeve is provided with a circumferentially arranged annular groove, and at least three rollers are arranged on the transmission seat, and the rollers are arranged in the annular groove, and the three rollers are arranged in the annular groove. The rollers form a right or acute triangle with each other.

A front rotation and axial sliding support device is arranged between the rolling shaft and the sleeve seat, and a rear rotation and axial sliding support device is arranged between the rolling shaft and the rear support hole of the support shell.

The front rotation and axial sliding support device includes a fifth bearing and a first guide sleeve, the rolling shaft is located in the first guide sleeve, and the fifth bearing is arranged between the first guide sleeve and the sleeve seat; the rear rotation and axial sliding support The device includes an installation sleeve, a support sleeve, a sixth bearing and a second guide sleeve, the installation sleeve is connected to the rear support hole, the second guide sleeve installation sleeve and the support sleeve, and the sixth bearing is arranged between the support sleeve and the support sleeve. between the rolling shafts.

The beneficial effect of the present invention is that the rolling assembly adopts a newly designed movable block device, so that the second bearing installed with the rolling wheel can use a smaller bearing, and the structure is compact; the first bearing in the movable block device can use The larger size of the bearing, the longer the service life of the first bearing; the first bearing and the second bearing are subjected to one-way force respectively, and will not be subjected to positive and negative force in both directions, which further improves the service life and provides a basis for the setting of the end face seal structure.

In addition, the sleeve seat of the rolling sleeve seat device is supported by the third bearing in the front support hole of the support shell to perform axial movement, thereby providing technical support for front and rear adjustment and axial buffering.

In addition, an end face sealing structure can also be formed between the sleeve seat and the outer loose block, so as to prevent the oil circuit from leaking from between the rolling sleeve seat device and the loose block device to the rolling wheel to contaminate the paper container, and at the same time, it can also prevent paper powder from leaking from The rolling wheel enters the oil circuit between the rolling sleeve device and the live block device to affect the transmission.

In addition, the forward cam and the backward cam on the rotary drive vertical shaft cooperate with the first spring device and the second spring device to drive the first moving plate and the second moving plate to move forward and backward, the transmission structure is more reasonable, the structure is more compact, and the operation It has high stability and can meet the needs of further speed-up.

The matching transmission structure between the transmission sleeve and the transmission seat ensures that the axial movement and rotation of the rolling shaft can be stably matched with each other, and the structure is compact, avoids shaking, and meets the needs of high-speed operation.

The entire rolling assembly has a compact structure, can be replaced and disassembled in the paper cup or paper bowl forming equipment as a whole, and is more convenient to use and assemble.

Description of drawings

The relevant details and working principles of the embodiments and embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of a rolling assembly in an embodiment.

FIG. 2 is a schematic three-dimensional structure diagram of a rolling assembly in an embodiment.

FIG. 3 is a schematic three-dimensional structure diagram of the structure of the hidden part in FIG. 2 .

FIG. 4 is a cross-sectional view A-A in FIG. 1 .

FIG. 5 is a schematic top view corresponding to FIG. 4 .

FIG. 6 is a schematic structural diagram of a part of FIG. 1 .

FIG. 7 is a schematic three-dimensional structure diagram of FIG. 6 .

FIG. 8 is a plan view of FIG. 7 .

FIG. 9 is a right side view of FIG. 6 .

Detailed ways

Referring to the drawings, in this embodiment, the rolling assembly includes a rolling mechanism, the rolling mechanism includes a support shell 15, the support shell 15 is provided with a rolling shaft 16, the rolling shaft 16 is arranged to rotate and move axially, and the support shell 15 The front part of the roller is also provided with a rolling sleeve seat device 30. The rolling sleeve seat device 30 includes a sleeve seat 38 and a back mold 44. The back mold 44 is connected to the front end of the sleeve seat 38, and the front end of the rolling shaft is provided with a wedge block 37. , the front end of the rolling shaft is connected with a live block device 31, and the live block device includes an inner live block 32 and an outer live block 33; the inner live block 32 has a wedge hole 36 to cooperate with the wedge part, when the rolling shaft 16 moves axially When the wedge part cooperates with the wedge hole, the inner movable block can be moved eccentrically (moved to one side). When the rolling shaft rotates, the inner movable block can be rotated by the wedge part and the wedge hole. When rotating and moving axially, the inner movable block can be rotated and moved eccentrically; a first bearing is connected between the inner movable block and the outer movable block, and the eccentric movement of the inner movable block can make the outer movable block move eccentrically. The bearing makes the inner movable block rotate in the outer movable block, and the outer movable block does not need to rotate except for revolution. The outer movable block 33 is located in the sleeve seat 38; the outer movable block 33 is also provided with a support shaft 45, the support shaft 45 moves with the outer movable block (eccentric movement and revolution), and a second bearing 46 is provided on the support shaft. The bearing 46 is provided with a rolling wheel 47, and the rolling wheel 47 is supported by the second bearing 46 to roll on the fulcrum; The shaft moves and revolves eccentrically, and the rolling wheel cooperates with the inner hole of the mold for rolling. The rotation and axial movement of the rolling shaft can drive the inner movable block to rotate and move eccentrically through the cooperation of the wedge portion and the wedge hole, so that the outer movable block can move eccentrically and revolve in the sleeve seat, and finally make the rolling wheel follow the outer The fulcrum on the live block moves and revolves eccentrically, and the rolling wheel cooperates with the inner hole of the mold for rolling. The rolling assembly adopts a newly designed live block device, so that the second bearing installed with the rolling wheel can use a smaller bearing, and the structure is compact; the first bearing in the live block device can use a larger size bearing, The service life of the first bearing is increased; the first bearing and the second bearing are subjected to one-way force respectively, and will not be subjected to positive and negative force in both directions, which further improves the service life. And provide a basis for the setting of the end face sealing structure.

The sleeve seat 38 is located in the front support hole of the support shell 15, a third bearing 50 is arranged between the front support hole and the sleeve seat, and the sleeve seat 38 is supported by the third bearing 50 (such as a copper sleeve) in the front support hole. Sliding, the sleeve seat is connected with a guide rod 51, and the support shell 15 has a guide sleeve or a guide hole to connect with the guide rod. The sleeve seat of the rolling sleeve seat device is supported by the third bearing in the front support hole of the support shell and can move axially, thereby providing technical support for the front and rear adjustment and axial buffering of the sleeve seat and the rolling sleeve seat device. Further optimization, the guide rod 51 is provided with a tension return spring 52, the tension return spring is located between the sleeve seat and the support shell, and the sleeve seat can be axially buffered on the support shell by tensioning the return spring. The end of the guide rod is also equipped with a lock nut 53, which is limited to one side of the guide sleeve or guide hole by the lock nut. The front and rear axles of the sleeve seated on the support shell can be adjusted by the position of the lock nut on the guide rod. Orientation position, to meet the production requirements of different specifications.

The outer movable block 33 is provided with a disc portion 34, the sleeve seat 38 is provided with an annular groove 39, the peripheral edge of the disc portion is surrounded by the annular groove 39, and the peripheral edge of the disc portion is matched in the annular groove to avoid the disc portion. The part 34 is separated from the annular groove 39 to form a leakage point, the annular groove is slidingly matched with the disc part, and the circumferential edge of the disc part is always located in the annular groove and keeps the sliding fit, and the operation is more stable; the sleeve seat 38 is provided with an entry channel 40 , the inlet channel 40 communicates with the annular groove 39, the front side of the annular groove is provided with a sealing ring installation groove, and the sealing ring installation groove is provided with a sealing ring 41. The sealing ring cooperates with the disc part to seal and block the lubricating oil from the entry channel to prevent the lubricating oil and paper powder from passing between the disc part and the annular groove. The lubricating oil can enter the annular groove from the entry channel to lubricate the disc. The part moves in the annular groove, so that the eccentric movement of the outer block and the disc part is smoother. The lubricating oil can pass through the channel on the support shell 15 when it is connected with the inlet channel.

The front side or rear side of the annular groove 39 is provided with a groove ring. When the lubricating oil enters, the eccentric rotation of the disc part can make the lubricating oil roll inside, the lubrication effect is better, and the sliding friction contact surface with the disc part is reduced at the same time. . In the figure, the groove ring is arranged on the front side of the annular groove, and an oil leakage channel is set between the sealing ring installation groove and the groove ring. The oil leakage channel connects the sealing ring installation groove and the groove ring to reduce lubrication. Risk of oil leakage from the sealing ring mounting groove. Preferably, the sealing ring can be a star-shaped sealing ring, and the sealing effect is better. A discharge passage 43 is provided on the disc portion, and the discharge passage communicates with the annular groove, so that the lubricating oil entering the annular groove can be discharged and circulated.

The sleeve seat 38 is provided with a stepped hole, the stepped hole is equipped with a pressure plate 44, and the pressure plate and the stepped hole form an annular groove 39, which is more convenient to process and assemble, especially the groove ring on the front side of the annular groove and the sealing ring installation groove The processing is easier and the assembly of the sealing ring is more convenient.

The rolling shaft 16 is connected with a rotating transmission wheel 54, and the rotating transmission wheel 54 is located outside the support shell 15. When the rotating transmission wheel 54 rotates, it can drive the rolling shaft to rotate, and the rotating transmission wheel can be driven by the motor 55, which can be driven by a belt. Transmission turns. In this embodiment, the support shell 15 is arranged on the first moving plate 1 , the rolling shaft 16 is also connected with the second moving plate 2 in a driving manner, and the first moving plate 1 is connected on the first transverse rail, and the first transverse rail is used for the first transverse rail. The moving board performs lateral reciprocating movement on the first transverse rail, the second moving board 2 is connected to the second transverse rail, and the second transverse rail is used for the second moving board to perform lateral reciprocating movement on the second transverse rail. The base 6 is provided with a rotary drive vertical shaft 3, and the rotary drive vertical shaft 3 is connected with a forward cam 7 and a backward cam 8, that is, the rotary drive vertical shaft is in a vertical state, and when the rotary drive vertical shaft 3 rotates, it can drive the forward cam 7 and the backward cam on it. The backward cam 8 rotates. For example, both the first transverse rail and the second transverse rail can adopt linear rails (such as V-shaped), and wheels are arranged on the corresponding moving boards to move on the linear rails.

The first moving plate 1 is provided with a front roller 9, and the front roller 9 is located on the front side of the advancing cam 7. The advancing cam 7 is matched with the front roller 9 (that is, abutting against the transmission), and the first moving plate 1 is also connected with the front roller 9. The first spring device 10 is driven and matched, and the first spring device 10 is connected between the first moving plate 1 and the base 6 . The second moving plate 2 is provided with a rear roller 13, the rear roller 13 is located on the rear side of the backward cam 8, and the backward cam 8 is in cooperation with the rear roller 13 (that is, against the transmission), and the second moving plate is also connected with the first The two spring devices 14 are in driving cooperation, and the second spring device 14 is connected between the second moving plate and the first moving plate. When the forward cam pushes the front roller forward (1 to the right in the figure), the working curve of the forward cam gradually protrudes, the front roller and the first moving plate advance synchronously, and the first spring device can buffer and store force (such as The first spring device uses a compression spring to compress), after the first moving plate advances in place, the working curve of the forward cam maintains the position of the front roller; the second spring device is deformed and driven when the first moving plate moves forward (such as the second The spring device uses a compression spring to push through compression and deformation.) The second moving plate moves forward, and the working curve of the backward cam retracts to give way for the rear roller and the second moving plate to move forward, until the first moving plate advances to the position, the second spring device Continue to release the elastic force to advance the second moving plate until it is in place (it can be used for rolling work to maintain extension and buffering), then the working curve of the backward cam protrudes and the roller retreats after the top transmission (1 in the figure to the left), the second movement The plate and the rear roller synchronously retreat, and then the working curve of the forward cam gives way for the front roller to retreat, and the second moving plate and the rear roller retreat synchronously, so that the second spring device can act on the first moving plate to retreat, and the first spring device also Move the first moving plate back until it moves back in place.

The forward cam and the backward cam on the rotary drive vertical shaft cooperate with the first spring device and the second spring device to drive the first moving plate and the second moving plate to move forward and backward in coordination, the transmission structure is more reasonable and compact, and the running stability is relatively high. The first moving plate is used to install the support shell of the rolling assembly, and the support shell will also be used to install the rolling sleeve seat device, and the rolling shaft rotates and axially moves on the support shell. , the second moving plate can be used to drive and connect the rolling shaft, which can drive the rolling shaft to advance and retreat, and the cooperation of the second spring device can keep the rolling work extended and buffered and avoid overload and collision damage.

The first spring device 10 includes a first spring or a first air cylinder or a first hydraulic cylinder, and the second spring device 14 includes a second spring or a second air cylinder or a second hydraulic cylinder. In the figure, the first spring device adopts a first spring (such as a compression spring), and the second spring device adopts a second spring (such as a compression spring). Corresponding spring mounting seats can be provided for spring connection and installation, and corresponding spring guides can also be provided. The rod is set for the spring to make the corresponding spring run more stably, and the spring guide rod is equipped with the corresponding guide hole.

The first transverse track is arranged on the base 6 of the rolling assembly, the second transverse track is arranged on the first connecting plate 1, the first connecting plate is provided with a notch, and the second connecting plate 2 is arranged on the notch; the layout is reasonable. , the structure is more compact. The transmission mechanism of the rolling assembly can be arranged on the base 6 of the rolling assembly, and the overall replacement with the rolling assembly is convenient.

As a priority, in this embodiment, the forward cam and the backward cam are two cams on the conjugate cam, forming a transmission cooperation relationship between the conjugate cam and the front roller and the rear roller, which is more stable, meets the fast demand, and has a longer service life.

A fourth bearing 17 is provided between the rotating driving vertical shaft 3 and the base 6 , and the rotating driving vertical shaft 3 is supported on the base by the fourth bearing 17 to rotate vertically. The lower part of the rotary drive vertical shaft is connected to the input gear device 18, and the input gear device 18 is located below the lower port of the base. The forward cam and the backward cam are arranged below the first moving plate and the second moving plate.

A transmission sleeve 21 is connected to the rolling shaft 16 for transmission. When the rolling shaft 16 is driven to rotate, the transmission sleeve 21 will also rotate synchronously. The transmission sleeve 21 is provided with a circumferentially arranged annular groove 22, and the annular groove will also rotate correspondingly when the transmission sleeve 21 rotates. The second moving plate is provided with a transmission seat 20, and the second spring device can be connected and matched with the transmission seat. At least three rollers 23 are arranged on the transmission seat 20. The rollers 23 are arranged in the annular groove 22, and the three rollers are mutually Form right or acute triangles. The roller 23 can roll on the transmission seat 20, the transmission seat 20 can be provided with a roller shaft 24 for the roller 23 to be installed, and the roller 23 is arranged in the annular groove 22. When the transmission seat 20 is driven to move forward and backward (the transmission seat The second moving plate drives forward and backward movement), the rolling shaft can be driven forward and backward (axial movement) through the cooperation of the roller and the annular groove of the transmission sleeve, without affecting the rotation of the rolling shaft; the other three rollers form each other. Right-angled or acute-angled triangle, so that the rolling axis is surrounded by at least three rollers, which is more stable and avoids shaking. The matching transmission structure between the transmission sleeve and the transmission seat ensures that the axial movement and rotation of the rolling shaft can be stably matched with each other, and the structure is compact, avoids shaking, and meets the needs of high-speed operation.

Preferably, three rollers 23 are provided, and the three rollers are respectively located on the left, right and lower sides of the annular groove, forming a right-angled triangle distribution to ensure that the rolling shafts are stably matched with each other in the axial movement and rotation, and are convenient for assembly. Preferably, the annular groove and the rolling shaft are arranged concentrically, that is, the shaft center line is on the same straight line, and the stability is further improved. The rolling axis is set horizontally and horizontally in the figure. In this embodiment, the transmission base 20 has a concave opening, and the three rollers are distributed on the left, right and bottom of the concave opening.

The transmission sleeve 21 is sleeved on the rolling shaft, the rolling shaft is provided with locking nuts on both sides of the transmission sleeve, and the rolling shaft is provided with external threads to cooperate with the locking nuts. The position of the fixed drive sleeve on the rolling shaft can be adjusted to meet different needs, that is, when the size and position of the rolling are changed. Or, a more preferred solution is smaller and more compact, the transmission sleeve 21 is sleeved on the rolling shaft 16, the rolling shaft 16 is provided with an external thread, the transmission sleeve 21 is provided with an internal thread to cooperate with the external thread, and the transmission sleeve 21 has a diameter Toward the opening lock slot 25 and the axial locking hole, the radial opening locking slot communicates with the axial locking hole, the radial opening locking slot corresponds to the internal thread, and the axial locking hole is equipped with a locking fastener 26 ( Such as locking screws), adjust the position by rotating the drive sleeve on the rolling shaft, and then change the size of the radial opening lock groove by locking the fastener, so that the internal thread is deformed and locked on the engaged internal thread; The opening lock groove is communicated with the inner hole of the transmission sleeve, the inner thread is located on the inner hole of the transmission sleeve, and the effect is better. The outer side of the transmission sleeve is provided with a pry hole, which is convenient to use a tool to pull the thread of the transmission sleeve on the rolling shaft to cooperate with the rotation.

There is a front rotation and axial sliding support device 56 between the rolling shaft and the sleeve seat, and the rolling shaft is supported by the front rotation and axial sliding support device for rotation and axial sliding (moving); A rear rotation and axial sliding support device 57 is provided between the support holes, and the rolling shaft is supported by the rear rotation and axial sliding support device for rotation and axial sliding (movement). In this embodiment, the front rotating and axial sliding support device includes a fifth bearing and a first guide sleeve (such as a copper sleeve), the rolling shaft is located in the first guide sleeve, and the fifth bearing is arranged in the first guide sleeve and the sleeve seat In between, the rolling shaft is supported in the first guide sleeve for axial movement, and the first guide sleeve is supported on the sleeve seat by the fifth bearing to rotate. An axial sliding key is arranged between the first guide sleeve and the rolling shaft, so that the rolling shaft and the first guide sleeve can slide relative to the axial direction, and can keep synchronous rotation, which is more stable. The rear rotation and axial sliding support device includes an installation sleeve, a support sleeve, a sixth bearing and a second guide sleeve (such as a copper sleeve). The installation sleeve is connected to the rear support hole, and the second guide sleeve is located between the installation sleeve and the support sleeve. Between the sleeves, the sixth bearing is arranged between the supporting sliding sleeve and the rolling shaft, the rolling shaft is supported by the sixth bearing to rotate on the supporting sliding sleeve, and the supporting sliding sleeve is supported by the second guide sleeve for axial sliding, which is convenient for setting lubricating oil A spacer can be arranged in the support sliding sleeve to facilitate the installation of the sixth bearing on both sides. A sealing ring is arranged between the installation sleeve and the supporting sliding sleeve, and the sealing ring can be arranged in the assembling groove of the installation sleeve.

Claims (10)

1. Rolling assembly, including a rolling mechanism, the rolling mechanism includes a support shell (15), the support shell (15) is provided with a rolling shaft (16), and the rolling shaft (16) is rotated and axially moved. It is characterized in that: the front part of the support shell (15) is further provided with a rolling sleeve seat device (30), and the rolling sleeve seat device (30) includes a sleeve seat (38) and a backing mold (44), and the backing mold (44) Connected to the front end of the sleeve seat (38), the front end of the rolling shaft (16) is provided with a wedge (37), and the front end of the rolling shaft is connected with a live block device (31), and the live block device includes an inner live block (32) and The outer movable block (33) has a wedge hole (36) on the inner movable block to cooperate with the wedge part (37), a first bearing (35) is connected between the inner movable block and the outer movable block, and the outer movable block (33) Located in the sleeve seat (38), a support shaft (45) is also provided on the outer movable block, a second bearing (46) is arranged on the support shaft (45), and a rolling wheel (47) is arranged on the second bearing (46). , the rolling wheel is located in the inner hole of the template (44). 2. The rolling assembly according to claim 1, characterized in that: the sleeve seat (38) is located in the front support hole of the support shell (15), and a third bearing (50) is arranged between the front support hole and the sleeve seat , the sleeve seat (38) is connected with a guide rod (51), and the support shell (15) is provided with a guide sleeve or a guide hole to be connected with the guide rod. 3. The rolling assembly according to claim 2, characterized in that: the guide rod (51) is provided with a tension return spring (52), and the tension return spring (52) is located between the sleeve seat and the support shell , the end of the guide rod is also equipped with a lock nut (53). 4. The rolling assembly according to claim 1, characterized in that: the outer loose block (33) is provided with a disc portion (34), the sleeve seat (38) is provided with an annular groove (39), and the disc portion is provided with a circular groove (39). The circumferential edge of (34) is surrounded by an annular groove (39), the circumferential edge of the disc portion is matched in the annular groove, the annular groove is slidably fitted with the disc portion, and an entry channel (40) is provided on the sleeve seat (38), The inlet channel is communicated with the annular groove (39), the front side in the annular groove is provided with a sealing ring installation groove, and the sealing ring installation groove is provided with a sealing ring (41). 5. The rolling assembly according to claim 1, characterized in that: the rolling shaft (16) is connected with a rotating transmission wheel (54), and the rotating transmission wheel (54) is located outside the support shell (15), and the support shell (15) It is arranged on the first moving plate (1), and the rolling shaft (16) is also drive-connected with the second moving plate (2), the first moving plate (1) is connected on the first transverse rail, and the second moving plate (2) Connected to the second transverse track, the base (6) is provided with a rotary drive vertical shaft (3), and the rotary drive vertical shaft (3) is connected with a forward cam (7) and a backward cam (8), and the first moving plate (1) There is a front roller (9) on it, the front roller (9) is located on the front side of the forward cam (7), the forward cam is matched with the front roller, and the first moving plate (1) is also connected with the first spring device ( 10) Transmission matching, the first spring device (10) is connected between the first moving plate (1) and the base (6), the second moving plate (2) is provided with a rear roller (13), and the rear roller is located in the On the rear side of the backward cam (8), the backward cam cooperates with the rear roller (13), and the second moving plate (2) also cooperates with the second spring device (14), and the second spring device (14) is connected to the between the second moving plate (2) and the first moving plate (1). 6. The rolling assembly of claim 5, wherein the forward cam and the backward cam are two cams on a conjugate cam. 7. The rolling assembly according to claim 5, characterized in that: a fourth bearing (17) is provided between the rotary drive vertical shaft (3) and the base (6), and the lower part of the rotary drive vertical shaft is connected to the input gear device (18) ), the input gear device is located under the lower port of the base, and the forward cam and the backward cam are arranged under the first moving plate and the second moving plate. 8. The rolling assembly according to claim 5, characterized in that: the rolling shaft (16) is connected with a transmission sleeve (21) for transmission, and the second moving plate (2) is provided with a transmission seat (20), which drives the The sleeve (21) is provided with a circumferentially arranged annular groove (22), the transmission seat (20) is provided with at least three rollers (23), the rollers are arranged in the annular groove, and the three rollers form a right angle or an acute angle with each other triangle. 9. The rolling assembly according to claim 1, characterized in that: a front rotation and axial sliding support device is provided between the rolling shaft and the sleeve seat, and a rear rotation is provided between the rolling shaft and the rear support hole of the support shell and axial sliding support device. 10. The rolling assembly of claim 9, wherein the front rotating and axial sliding support device comprises a fifth bearing and a first guide sleeve, the rolling shaft is located in the first guide sleeve, and the fifth bearing is arranged in the first guide sleeve. Between the first guide sleeve and the sleeve seat; the rear rotation and axial sliding support device includes an installation sleeve, a support sliding sleeve, a sixth bearing and a second guide sleeve, the installation sleeve is connected to the rear support hole, and the second guide sleeve is installed Between the sleeve and the supporting sliding sleeve, the sixth bearing is arranged between the supporting sliding sleeve and the rolling shaft.

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