CN116409070A

CN116409070A - Conduction band device of digital printing machine

Info

Publication number: CN116409070A
Application number: CN202111678289.9A
Authority: CN
Inventors: 王黎明; 董嫣卿; 金淼; 谭林君; 李�权; 范卫林
Original assignee: Zhejiang Xinxin Digital Technology Co ltd
Current assignee: Zhejiang Xinxin Digital Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-07-11
Anticipated expiration: 2041-12-31
Also published as: CN116409070B

Abstract

The utility model relates to a technical field of digital printing machine especially relates to a conduction band device of digital printing machine, which comprises a frame, be connected with the conduction band in the frame, just be located in the conduction band inboard is provided with protruding roller, protruding roller is contradicted and is formed the outer convex part in the conduction band inboard, the frame below is provided with and is used for contradicting the washing structure on the outer convex part; the cleaning structure comprises a base positioned at the lower side of the conduction band, a rubber removing roller which is rotationally connected to the base and is used for abutting against the surface of the outer lug, and a hot water tank which is arranged on the base and is used for immersing the lower side of the rubber removing roller. The application has the following effects: the rubber removing roller is stained with hot water in the rotating process, the conduction band on the protruding part can be brushed off, and after the brushing off is finished, the rubber removing roller is immersed into a hot water tank, and after colloid and sundries are removed, the rubber removing roller is brushed off again, so that the cleaning effect is good.

Description

Conduction band device of digital printing machine

Technical Field

The application relates to the technical field of digital printing machines, in particular to a conduction band device of a digital printing machine.

Background

The digital ink jet printing technology is a technical product which integrates mechanical and computer electronic information technology into a whole and is gradually formed along with the continuous development of computer technology. The technology is developed and perfected, and gradually replaces the traditional printing mode to become main equipment for textile printing.

The digital ink-jet printing is generally carried out by a digital printing machine at present, and the existing digital printing machine, such as Chinese patent application publication No. CN205871511U, discloses a digital printing machine which comprises a frame, a conduction band and a guide roller assembly, wherein the guide roller assembly comprises a tension roller assembly with adjustable angles, an expanding roller arranged above the tension roller assembly, a cloth guide roller arranged above the expanding roller, a pressure roller assembly comprising two pressure rollers which are arranged in parallel up and down, a cloth supporting roller which is arranged in parallel with the conduction band in front of the conduction band and is connected with the frame in a sliding way up and down, and a cloth rolling roller which is arranged below the cloth supporting roller in parallel with the cloth supporting roller.

The guide belt of the digital printing machine is mainly used for conveying mediums such as cloth, so that redundant thread ends, fluff and other sundries are generally adhered to the guide belt, glue solution is coated on the guide belt for conveniently and smoothly conveying the cloth, and the sundries are difficult to remove through general scraping.

Disclosure of Invention

In order to facilitate removal of impurities on a guide belt, the application provides a guide belt device of a digital printing machine.

The application provides a conduction band device of digital printing machine adopts following technical scheme: the guide belt device of the digital printing machine comprises a frame, wherein a guide belt is connected to the frame, a protruding roller is arranged on the frame and positioned on the inner side of the guide belt, the protruding roller is abutted against the inner side of the guide belt to form an outer protruding part, and a cleaning structure for being abutted against the outer protruding part is arranged below the frame;

the cleaning structure comprises a base positioned at the lower side of the conduction band, a rubber removing roller which is rotationally connected to the base and is used for abutting against the surface of the outer lug, and a hot water tank which is arranged on the base and is used for immersing the lower side of the rubber removing roller.

Through adopting above-mentioned technical scheme, at the in-process of conduction band motion, protruding roller forms outer convex part with the conduction band evagination, removes the rubber roll simultaneously on the base and contradicts on protruding roller, removes the rubber roll and can be stained with hot water at pivoted in-process, can brush the conduction band on the protruding portion, and brush and remove the back, still will dip into in the hot-water tank, can remove back with colloid and debris, brush again, it is better to clear away the effect.

Preferably, the frame below is provided with and is used for driving the base along the drive assembly of vertical direction round trip movement, drive assembly is including rotating the terminal surface cam body of connecting in the frame below, setting up in the frame below and be used for driving the base to keep the tight piece of support of contradicting at terminal surface cam body upper edge.

Through adopting above-mentioned technical scheme, because can not be long-time always to the action of scraping off the conduction band, can damage the conduction band, so make the base carry out the motion of vertical direction through drive assembly, conflict when scraping when needs, and remove the rubber roll and do not contact with the conduction band in other times, the protrusion of terminal surface cam body can drive the base after rotating and be close to the conduction band, and break away from the base after the protrusion, support tight piece can make the base conflict at the upper edge of terminal surface cam.

Preferably, the tight piece is including supporting tight seat, setting up the slip pipe on supporting tight seat, wear to establish and slip and connect the connecting rod in the slip pipe, cover establish the tight spring of supporting on the connecting rod, the connecting rod is connected in the base, the one end fixed connection who supports tight spring is in supporting tight seat, and the other end fixed connection is in the base, it makes the base have to be close to support tight spring the trend of seat.

Through adopting above-mentioned technical scheme, at pivoted in-process, support tight spring can keep tensile state to make the base remain close to the trend of supporting tight seat all the time, thereby make the base can be adapted to the terminal surface cam body, along the high variation of terminal surface, thereby be close to or keep away from the conduction band.

Preferably, the annular end face of the end face cam body comprises a rising annular face, a falling annular face with the height lower than that of the rising annular face and two transition inclined faces, two ends of each transition inclined face are respectively connected with the rising annular face and the falling annular face, a rolling ball used for abutting against the annular end face is arranged on the lower side of the base, and when the rolling ball abuts against the rising annular face, the rubber removing roller abuts against the surface of the outer lug.

Through adopting above-mentioned technical scheme, at terminal surface cam body pivoted in-process, the ball can support tightly in terminal surface cam body's upper edge department under the effect of supporting tight piece, along with terminal surface cam body's rotation, the ball will depend on the time and go up ascending anchor ring and decline anchor ring upward movement, and the guide effect of high conversion can be played on the transition inclined plane.

Preferably, the end face cam body comprises a wheel ring seat rotatably connected below the frame and a plurality of combined columns which are slidably connected to the wheel ring seat in a positioning manner along the vertical direction, wherein the combined columns are arranged along the circumference of the wheel ring seat, the upper end face of each combined column is slidably connected with a guide block, and the upper surface of each guide block is the transition inclined plane;

the combined column moves along the sliding direction and then has an ascending state and a descending state, and when the combined column is in the ascending state, the upper end surfaces of the plurality of the combined columns in the ascending state form an ascending ring surface; when the combined column is in a descending state, the guide block is connected to the descending combined column closest to the two ends of the ascending annular surface, and the upper end surfaces of the plurality of combined columns in the other descending states form the descending annular surface.

Through adopting above-mentioned technical scheme, at the effect according to the brush-off, the constitution of whole terminal surface cam body anchor ring can be adjusted, namely through the combination post that slides from top to bottom, the area of rising anchor ring and the area of descending anchor ring are adjusted, and total area is unchangeable, simultaneously at the in-process of adjusting for the guide block slides and makes its adaptation in new constitution mode.

Preferably, the lower surface of the guide block is provided with two sliding plates arranged at intervals, the two sliding plates are used for being clamped on the upper side of the combined column, one side, close to each other, of each sliding plate is provided with an arc-shaped limit edge parallel to the wheel ring seat, the side wall of the combined column is provided with a limit groove for embedding the arc-shaped limit edge, and the sliding plates are provided with fixing pieces for fixing the guide block on the combined column.

Through adopting above-mentioned technical scheme, when adjusting, the mode of accessible slip for the spacing arris of arc passes the spacing groove on each combination post in proper order, and final motion arrives the assigned position, and is fixed through the mounting, adjusts comparatively conveniently.

Preferably, the fixing piece is a limit stud which is connected to the sliding plate in a threaded mode, and the bottom of the limit groove is provided with an inserting hole for inserting the limit stud.

Through adopting above-mentioned technical scheme, after the guide block finishes sliding, screw up the back through spacing double-screw bolt for it imbeds in the jack, thereby realizes the fixed of guide block.

Preferably, the wheel ring seat is provided with a plurality of accommodating grooves corresponding to the combined columns along the circumferential direction, the lower sides of the combined columns are provided with adjusting parts inserted into the accommodating grooves, the adjusting parts are provided with first adjusting holes and second adjusting holes at intervals along the length direction, and the lower sides of the wheel ring seat are connected with adjusting rods in a sliding manner along the radial direction, wherein the adjusting rods are used for being inserted into the first adjusting holes or the second adjusting holes;

the height of the first adjusting hole is lower than that of the second adjusting hole, and when the adjusting rod is inserted into the first adjusting hole, the corresponding combined column is in a rising state; when the adjusting rod is inserted into the second adjusting hole, the corresponding combined column is in a descending state.

Through adopting above-mentioned technical scheme, through the removal of adjusting part in the storage tank, and cooperate in the spacing of adjusting the pole, realize switching two states of combination post, also only need accomplish again the joint can when adjusting.

Preferably, an adjusting sleeve for the adjusting part to penetrate is arranged on the lower side of the wheel ring seat, and the adjusting rod is connected to the adjusting sleeve in a threaded manner.

Through adopting above-mentioned technical scheme, rotate the regulation pole and can make it withdraw from the regulation hole to can adjust the position of combination post, and the operation is comparatively simple and convenient.

Preferably, the upper end surface of the combined column is provided with a first rail for sliding the rolling ball, and the guide block is provided with a second rail for sliding the rolling ball.

Through adopting above-mentioned technical scheme, when the terminal surface cam body rotates, rising anchor ring and decline anchor ring are adjusted anyway, and when rotating, the spin can keep moving in first or second track, and the motion is comparatively stable.

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

1. when the sundries are brushed, the sundries are brushed through the cooperation of hot water and the rubber removing roller, so that the sundries on the guide belt can be better removed;

2. the end face cam body is arranged, so that the base can move up and down along with the movement of the end face cam body, and further the rubber removing roller cannot always keep abutting on the guide belt, and unnecessary damage is reduced;

3. according to the actual sundries condition of the conduction band, the occupied area of the ascending ring surface and the descending ring surface can be adjusted by adjusting the arrangement of the combined columns, and the device is suitable for the actual condition.

Drawings

FIG. 1 is a schematic structural view of the present application;

FIG. 2 is a schematic view of the structure of the present application with the housing hidden;

FIG. 3 is a schematic view of the structure of the end cam body;

FIG. 4 is a schematic view of a partial explosion of the body of the end cam;

FIG. 5 is a schematic diagram of the connection of the guide block to the composite post.

Reference numerals illustrate: 100. a frame; 110. conduction band; 111. a protruding roller; 112. a guide roller; 113. an outer protruding portion; 120. cleaning the structure; 121. a base; 122. a rubber removing roller; 123. a hot water tank; 124. a glue removing motor; 125. an extension rod; 126. a rolling ball; 131. an end surface cam body; 132. a tightening member; 133. a pressing seat; 134. a slip pipe; 135. a connecting rod; 136. a spring is abutted tightly; 141. a rising torus; 142. a transition inclined plane; 143. lowering the annulus; 151. a wheel ring seat; 152. a composite column; 153. a driving motor; 154. a connecting plate; 155. a receiving groove; 156. an adjusting section; 160. an adjusting sleeve; 161. a first adjustment aperture; 162. a second adjustment aperture; 163. an adjusting rod; 170. a guide block; 171. a slip plate; 172. arc limiting edges; 173. a limit groove; 174. a limit stud; 175. a jack; 210. a first track; 220. and a second track.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The utility model provides a conduction band device of digital printing machine, refer to fig. 1, including frame 100, be connected with conduction band 110 on the frame 100, frame 100 is last and be located conduction band 110 inboard and be provided with protruding roller 111, protruding roller 111 conflict like this forms outer convex part 113 in conduction band 110 inboard, and simultaneously on frame 100 and be located protruding roller 111's both sides and be provided with guide roller 112 for conflict in conduction band 110 outside, frame 100 below is provided with and is used for conflicting the washing structure 120 on outer convex part 113, is used for cleaing away debris on the conduction band 110.

The cleaning structure 120 comprises a base 121 positioned at the lower side of the conduction band 110, a rubber removing roller 122 rotatably connected to the base 121 and used for abutting against the surface of the outer flange 113, and a hot water tank 123 arranged on the base 121 and used for immersing the lower side of the rubber removing roller. The hot water tank 123 is provided with a glue removing motor 124, and an output shaft of the glue removing motor 124 is horizontally arranged and fixedly connected to one end of the glue removing roller 122, so as to drive the glue removing roller 122 to rotate. The surface of the rubber removing roller 122 is provided with a plurality of bristles, and water in the hot water tank 123 can be used for wetting the lower side of the rubber removing roller 122, so that the bristles can be stained with hot water, and in the rotating process, the bristles can scrape the surface of the conduction band 110, and impurities can be reserved in the hot water tank 123 after the bristles are rotated into the hot water tank 123 again. In this embodiment, after the colloid is scraped off with the sundries, in the subsequent movement process, a component for gluing the conduction band 110 again is mounted on the frame 100, so that the conduction band 110 continues to have adhesive force.

Referring to fig. 1 and 2, a driving assembly for driving the base 121 to move back and forth in the vertical direction is disposed below the frame 100, and the driving assembly includes an end cam body 131 rotatably connected below the frame 100, and a pressing member 132 disposed below the frame 100 for driving the base 121 to keep pressing against an upper edge of the end cam body 131. The abutting piece 132 comprises an abutting seat 133, a sliding tube 134, a connecting rod 135 and an abutting spring 136. The abutting seat 133 is fixed on the ground and is positioned below the base 121, the sliding tube 134 is fixedly arranged on the abutting seat 133 along the vertical direction, the connecting rod 135 is penetrated and connected in the sliding tube 134 in a sliding manner, and the abutting spring 136 is sleeved outside the connecting rod 135 and the sliding tube 134. The end of the connecting rod 135 is fixedly connected to the base 121, one end of the abutting spring 136 is fixedly connected to the abutting seat 133, and the other end is fixedly connected to the base 121.

Referring to fig. 2 and 3, an extension rod 125 is fixedly connected to the lower side of the base 121, the extension rod 125 is vertically disposed, and one end of the extension rod 125 away from the base 121 has a rolling ball 126 abutting against the upper edge of the end-face cam body 131. The abutment spring 136 is always in tension in this embodiment, so that the abutment spring 136 keeps the base 121 having a tendency to approach the abutment 133, i.e. so that the ball 126 keeps abutting against the upper edge of the end cam body 131.

The wheel ring end surface of the end surface cam body 131 comprises a rising annular surface 141, a falling annular surface 143 with the height lower than that of the rising annular surface 141 and two transition inclined surfaces 142, two ends of each transition inclined surface 142 are respectively connected with the rising annular surface 141 and the falling annular surface 143, and when the rolling ball 126 is abutted against the rising annular surface 141, the rubber removing roller 122 is abutted against the surface of the outer flange 113.

In order to adjust the rising duration according to the actual stock condition of the guide belt 110, the end cam body 131 in this embodiment includes a ring seat 151 rotatably connected to the lower side of the frame 100, and a combination post 152 slidably connected to the ring seat 151 in a vertically positionable manner. The driving motor 153 is installed on the ground, the connecting plate 154 is arranged in the middle of the wheel ring base 151, an output shaft of the driving motor 153 is vertically arranged and fixedly connected with the connecting plate 154, and a connecting point is positioned at the center of the wheel ring base 151, so that the end face cam body 131 can be driven to rotate.

Referring to fig. 3 and 4, a plurality of accommodating grooves 155 are formed in the wheel ring base 151 along the circumferential direction, the accommodating grooves 155 are in one-to-one correspondence with the combined columns 152, an adjusting portion 156 is arranged at the lower side of the combined columns 152, the adjusting portion 156 is used for being inserted into the accommodating grooves 155, the cross-sectional area of the adjusting portion 156 is smaller than that of the combined columns 152, and the combined columns 152 can be spliced to form a complete ring.

The lower side of the wheel ring base 151 is provided with an adjusting sleeve 160 through which the adjusting part 156 passes, the adjusting part 156 is provided with a first adjusting hole 161 and a second adjusting hole 162 at intervals along the length direction, the height of the first adjusting hole 161 is lower than that of the second adjusting hole 162, the adjusting sleeve 160 is connected with an adjusting rod 163 in a threaded manner along the radial direction, and the end part of the adjusting rod 163 is used for being inserted into the first adjusting hole 161 or the second adjusting hole 162.

When the adjusting lever 163 is inserted into the first adjusting hole 161, the end surface of the corresponding combining post 152 is higher, defined as being in a rising state; when the adjustment lever 163 is inserted into the second adjustment hole 162, the corresponding combination post 152 is defined as being in a lowered state.

Referring to fig. 4 and 5, the upper end surface of the combined column 152 is slidably connected with a guide block 170, the sliding direction of the guide block 170 is along the circumferential direction of the wheel ring seat 151, the upper surface of the guide block 170 is the transition inclined surface 142, the lower surface of the guide block 170 is provided with two sliding plates 171 arranged at intervals, the two sliding plates 171 are used for being clamped on the upper side of the combined column 152, one side, close to each other, of each sliding plate 171 is provided with an arc limiting rib 172 parallel to the wheel ring seat 151, and the side wall of the combined column 152 is provided with a limiting groove 173 for the arc limiting rib 172 to be embedded.

The sliding plate 171 is provided with a fixing member for fixing the guide block 170 on the combination post 152, in this embodiment, the fixing member is a limit stud 174 screwed on the sliding plate 171, and the bottom of the limit groove 173 is provided with a jack 175 into which the limit stud 174 is inserted.

When the combined column 152 is in the rising state, the upper end surfaces of the multiple combined columns 152 in the rising state form a rising ring surface 141; when the combined column 152 is in the lowered state, the guide block 170 is connected to the lowered combined column 152 closest to the two ends of the raised annular surface 141, and the upper end surfaces of the remaining lowered combined columns 152 form the lowered annular surface 143. Thus, when the end cam body 131 rotates, the rolling balls 126 sequentially circulate on the descending annular surface 143, the transition inclined surface 142, the ascending annular surface 141 and the transition inclined surface 142, so that the rubber removing roller 122 is close to or far from the outer flange 113.

Referring to fig. 3 and 4, in order to maintain the ball 126 in a stable state, a first rail 210 for the ball 126 to slide is provided on the upper end surface of the combination post 152, a second rail 220 for the ball 126 to slide is provided on the guide block 170, the second rail 220 is also inclined, and the second rail 220 covers the first rail 210 after the guide block 170 is mounted on the upper side of the combination post 152.

The implementation principle of the embodiment of the application is as follows: after the cloth is separated from the guide belt 110, the cloth passes through the protruding roller 111, and at this time, the colloid and impurities are removed together by the de-colloid roller 122 in the rotating process, and then the cloth is continuously washed by hot water.

Meanwhile, during the rotation of the end cam body 131, the ball 126 always keeps the state of abutting against the rising ring surface 141, and when the ball 126 moves to the transition slope 142, the abutting spring 136 will make the ball 126 move to the falling ring surface 143, so that the rubber removing roller 122 will be separated from the surface of the guide belt 110 and not contact with the same.

When the contact time between the resist removing roller 122 and the guide belt 110 needs to be adjusted, the adjusting lever 163 adjusts the state of the combined column 152, and the guide block 170 needs to be slid onto the combined column 152 in the descending state closest to the two ends of the ascending annular surface 141 and fixed, so that the occupied areas of the ascending annular surface 141 and the descending annular surface 143 are adjusted.

The embodiments of the present utility model are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a conduction band device of digital printing machine, includes frame (100), be connected with conduction band (110) on frame (100), its characterized in that: a protruding roller (111) is arranged on the frame (100) and positioned on the inner side of the conduction band (110), the protruding roller (111) is abutted against the inner side of the conduction band (110) to form an outer protruding portion (113), and a cleaning structure (120) for being abutted against the outer protruding portion (113) is arranged below the frame (100);

the cleaning structure (120) comprises a base (121) positioned on the lower side of the conduction band (110), a rubber removing roller (122) rotatably connected to the base (121) and used for abutting against the surface of the outer flange (113), and a hot water tank (123) arranged on the base (121) and used for immersing the lower side of the rubber removing roller.

2. A tape guide for a digital printer according to claim 1, wherein: the device is characterized in that a driving assembly used for driving the base (121) to move back and forth along the vertical direction is arranged below the frame (100), and the driving assembly comprises an end surface cam body (131) rotationally connected below the frame (100) and a supporting piece (132) arranged below the frame (100) and used for driving the base (121) to keep abutting against the upper edge of the end surface cam body (131).

3. A tape guide for a digital printer according to claim 2, wherein: the tight piece (132) supports includes tight seat (133), sets up slip pipe (134) on supporting tight seat (133), wears to establish and slip to connect connecting rod (135) in slip pipe (134), cover establish tight spring (136) of supporting on connecting rod (135), connecting rod (135) are connected in base (121), the one end fixed connection who supports tight spring (136) supports tight seat (133), and the other end fixed connection is in base (121), support tight spring (136) makes base (121) have to be close to the trend of supporting tight seat (133).

4. A tape guide for a digital printer according to claim 3, wherein: the annular end face of the end face cam body (131) comprises a rising annular face (141), a falling annular face (143) with the height lower than that of the rising annular face (141) and two transition inclined faces (142), two ends of each transition inclined face (142) are respectively connected to the rising annular face (141) and the falling annular face (143), a rolling ball (126) used for abutting against the annular end face is arranged on the lower side of the base (121), and when the rolling ball (126) abuts against the rising annular face (141), the rubber removing roller (122) abuts against the surface of the outer flange (113).

5. The belt guide of a digital printer according to claim 4, wherein: the end surface cam body (131) comprises a wheel ring seat (151) rotatably connected below the frame (100) and a combined column (152) slidably connected to the wheel ring seat (151) in a positioning manner along the vertical direction, a plurality of combined columns (152) are arranged along the circumferential direction of the wheel ring seat (151), the upper end surface of the combined column (152) is slidably connected with a guide block (170), and the upper surface of the guide block (170) is the transition inclined surface (142);

the combined column (152) moves along the sliding direction and then has an ascending state and a descending state, and when the combined column (152) is positioned in the ascending state, the upper end surfaces of the plurality of the combined columns (152) in the ascending state form an ascending ring surface (141); when the combined column (152) is in a descending state, the guide block (170) is connected to the descending combined column (152) closest to the two ends of the ascending annular surface (141), and the upper end surfaces of the plurality of combined columns (152) in the rest descending states form the descending annular surface (143).

6. The belt guide of a digital printer according to claim 5, wherein: the guide block (170) lower surface has two slip boards (171) that the interval set up, two slip boards (171) are used for pressing from both sides to establish in combination post (152) upside, slip boards (171) are close to each other one side have arc spacing arris (172) that are on a parallel with wheel ring seat (151), have on the lateral wall of combination post (152) and supply spacing groove (173) of arc spacing arris (172) embedding, be equipped with on slip board (171) and be used for fixing guide block (170) on combination post (152).

7. The belt guide of a digital printer according to claim 6, wherein: the fixing piece is a limit stud (174) which is connected to the sliding plate (171) in a threaded mode, and a jack (175) for embedding the limit stud (174) is formed in the bottom of the limit groove (173).

8. The belt guide of a digital printer according to claim 6, wherein: the wheel ring seat (151) is provided with a plurality of accommodating grooves (155) corresponding to the combined columns (152) along the circumferential direction, the lower side of the combined columns (152) is provided with adjusting parts (156) inserted into the accommodating grooves (155), the adjusting parts (156) are provided with first adjusting holes (161) and second adjusting holes (162) at intervals along the length direction, and the lower side of the wheel ring seat (151) is connected with adjusting rods (163) inserted into the first adjusting holes (161) or the second adjusting holes (162) in a sliding manner along the radial direction;

the height of the first adjusting hole (161) is lower than that of the second adjusting hole (162), and when the adjusting rod (163) is inserted into the first adjusting hole (161), the corresponding combined column (152) is in a rising state; when the adjusting rod (163) is inserted into the second adjusting hole (162), the corresponding combining column (152) is in a lowered state.

9. The belt guide of a digital printer according to claim 8, wherein: the lower side of the wheel ring seat (151) is provided with an adjusting sleeve (160) for the adjusting part (156) to penetrate through, and the adjusting rod (163) is connected to the adjusting sleeve (160) in a threaded mode.

10. The belt guide of a digital printer according to claim 5, wherein: the upper end face of the combined column (152) is provided with a first track (210) for the rolling ball (126) to slide, and the guide block (170) is provided with a second track (220) for the rolling ball (126) to slide.