A conveying device for printing

By introducing adjustment and clamping mechanisms into the printing conveyor, and using chutes and ball bearing structures to reduce friction, combined with pressure sensors, the conveyor belt can be precisely adjusted and securely clamped. This solves the problem of increased costs associated with traditional electronic control devices and improves the stability and adaptability of the equipment.

CN224563433UActive Publication Date: 2026-07-28北京地大彩印有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
北京地大彩印有限公司
Filing Date
2025-06-24
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Traditional printing conveyor systems increase manufacturing costs by adjusting conveyor belt tension through electronic control devices.

Method used

It employs an adjustment mechanism and a clamping mechanism, using a sliding groove and ball bearing structure to reduce friction, and combined with a pressure sensor to achieve precise tension adjustment and stable clamping of the conveyor belt, thus avoiding the use of electronic control devices.

Benefits of technology

This achieves high-speed operation stability of the conveyor belt and safe material clamping, reduces manufacturing costs, and improves the adaptability and stability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of conveying for printing discloses a conveying device for printing, including the fixed frame, the inside of fixed frame is provided with the conveyer belt, the inside left and right side front end of fixed frame all is provided with same adjusting mechanism, the adjusting mechanism is used for adjusting the tension of conveyer belt, the upside and downside of conveyer belt all are provided with same clamping mechanism, the clamping mechanism is used for clamping the top material of conveyer belt, prevents material movement, the adjusting mechanism includes two mountings, the opposite side of two mountings all is fixedly connected in the inside left and right side front end of fixed frame. In the utility model, when needing to adjust, the threaded rod rotates in the threaded bushing while generating axial displacement, and then drives the sliding block to slide in the mounting before and after, and the movement of the sliding block can accurately change the tightness of the conveyer belt, ensure that the material does not deviate when the conveyer belt runs at high speed and reduce manufacturing cost.
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Description

Technical Field

[0001] This utility model relates to the field of printing conveying technology, and in particular to a printing conveying device. Background Technology

[0002] The conveying device for printing is a core component of the printing paperboard production line. Its performance directly affects printing efficiency and quality. Currently, the printing paperboard industry is developing towards high speed and automation, which puts forward higher requirements for the stability, accuracy and adaptability of the conveying device. Traditional conveying devices mostly use belt, chain or roller drive.

[0003] A search revealed Chinese patent publication number CN220244918U, which discloses a printing conveyor device including a base, a driver, a drive shaft, a conveyor belt, and a material distribution device. This utility model, through the material distribution device, allows the drive motor to rotate the movable block as the printed material is printed along the conveyor belt. The collision between the movable block and the limiting rod facilitates the limiting rod's quantitative limiting of the lower end of the interval mechanism. Furthermore, the spring tension allows the limiting rod to elastically reset, thus facilitating the limiting of the interval mechanism. The elastic limit of the rod quantitatively intercepts the printed materials above the conveyor belt to facilitate quantitative material distribution. By setting up an interval mechanism, when the rotating seat drives the movable plate to rotate, the limit rod limits the movable plate along the outer groove of the movable plate and keeps the material distribution plate in a fixed state. When the limit rod moves outward, the movable plate loses the limitation and fixation of the limit rod, thus achieving the effect of distributing the printed materials. However, in actual use, because the tension of the conveyor belt is adjusted by an electronic control device, the manufacturing cost will increase. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a printing conveyor device, which aims to improve the problem that the manufacturing cost is increased because the tension of the conveyor belt is adjusted by an electronic control device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a printing conveyor device, including a fixed frame, a conveyor belt is provided inside the fixed frame, the same adjustment mechanism is provided on the left and right front ends of the fixed frame, the adjustment mechanism is used to adjust the tension of the conveyor belt, and the same clamping mechanism is provided on the upper and lower sides of the conveyor belt, the clamping mechanism is used to clamp the top material of the conveyor belt to prevent the material from moving. The adjustment mechanism includes two mounting brackets. The opposite sides of the two mounting brackets are fixedly connected to the left and right front ends of the inner side of the fixed bracket. The left and right front ends of the inner side of the fixed bracket are provided with mounting grooves. The opposite sides of the two mounting brackets are fixedly connected to the inside of the mounting grooves. The upper and lower sides of the inner side of the two mounting brackets are provided with sliding grooves. Sliding blocks are slidably connected to the inner side of the two mounting brackets. Sliding strips are fixedly connected to the upper and lower sides of the two sliding blocks. Semicircular grooves are provided on the opposite sides of the multiple sliding strips. Rotating balls are rotatably connected to the inner side of the multiple semicircular grooves. A moving component is provided on the front side of the rotating ball on the right side.

[0006] The above technical solution involves: a mounting groove inside the fixed frame, into which the mounting frame is embedded and securely fixed, laying a solid foundation for overall operation; a sliding groove in the mounting frame to accommodate the sliding block, with a sliding strip on it that matches the groove and can slide back and forth; and a ball bearing in the semi-circular groove of the sliding strip converts sliding friction into rolling friction, reducing resistance. When adjustment is required, the threaded rod rotates within the threaded sleeve, generating axial displacement, which in turn drives the sliding block to slide back and forth within the mounting frame. The movement of the sliding block can precisely change the tension of the conveyor belt, ensuring that the material does not shift during high-speed operation of the conveyor belt and reducing manufacturing costs.

[0007] As a further description of the above technical solution: The clamping mechanism includes multiple fixing blocks. The tops of the multiple fixing blocks are disposed on the upper and lower sides of the conveyor belt. The bottoms of the multiple fixing blocks are each provided with mounting components. Telescopic rods are fixedly connected between adjacent fixed blocks. Connecting plates are fixedly connected between adjacent telescopic rods. Pressure sensors are fixedly connected between adjacent connecting plates. Extrusion plates are fixedly connected between adjacent pressure sensors.

[0008] Through the above technical solution: multiple fixed blocks are orderly distributed above and below the conveyor belt to form a stable clamping structure. The fixed blocks are connected by telescopic rods. When they contract, they drive the connecting plate to tighten the clamping structure. The surface of the extrusion plate is non-slip and wear-resistant, and it increases friction to prevent slippage when the material is in contact with it. The pressure sensor monitors the pressure in real time. Once the safety threshold is reached, a signal is sent immediately to stop the telescopic rod from applying force, thus achieving safe and stable clamping of the material.

[0009] As a further description of the above technical solution: The movable component includes a threaded sleeve, the rear side of which is fixedly connected to the front side of the right sliding block. The front side of the mounting bracket has a threaded hole, and a threaded rod is threadedly connected inside the threaded hole.

[0010] Through the above technical solution: the threaded sleeve is firmly fixed to the front side of the right sliding block, and the threaded hole opened on the front side of the mounting bracket provides space for the threaded rod to be threaded connected. When the operator rotates the threaded rod, based on the principle of thread transmission, the threaded rod rotates in the threaded sleeve and generates axial displacement, which in turn drives the sliding block to slide back and forth in the mounting bracket. The movement of the sliding block can accurately change the tension of the conveyor belt, ensuring that the conveyor belt maintains appropriate tension during transmission.

[0011] As a further description of the above technical solution: The mounting assembly includes multiple mounting plates, the tops of which are fixedly connected to the bottom of the fixing block. Each of the four corners of the top of the multiple mounting plates is penetrated by a bolt, and the bottom of the outer wall of each bolt is threaded to the upper and lower sides of the conveyor belt.

[0012] The above technical solution involves multiple mounting plates being tightly connected at their tops to the bottom of the fixing block. Each mounting plate has a bolt at one of its four corners. By aligning the bolt with the pre-set screw holes on the upper and lower sides of the conveyor belt and tightening the bolt, the fixing block can be securely installed on the conveyor belt. This not only ensures structural stability but also facilitates disassembly and adjustment, and can adapt to the clamping requirements of materials of different specifications.

[0013] As a further description of the above technical solution: A support plate is fixedly connected to the right rear end of the fixed frame, and a motor is fixedly connected to the top of the support plate. The output end of the motor is fixedly connected to the right rear end of the conveyor belt.

[0014] Through the above technical solution: the support plate at the right rear end of the fixed frame provides a stable support platform for the motor. The motor is installed on the top of the support plate and its output end is directly connected to the right rear end of the conveyor belt. When the motor is powered on and started, the rotational power at the output end is directly transmitted to the conveyor belt, driving the conveyor belt to run stably at the set speed, thereby realizing the efficient transfer of materials on the conveyor belt and providing a reliable guarantee for subsequent processing.

[0015] As a further description of the above technical solution: The four corners at the bottom of the fixed frame are all fixedly connected to support columns, the bottoms of the multiple support columns are all fixedly connected to base plates, and the four corners at the top of the multiple base plates are all fixedly connected to bolts.

[0016] The above technical solution involves fixing support columns at the four corners of the bottom of the fixed frame, connecting the lower ends of the support columns to the base plate, and installing bolts at the four corners of the top of the base plate. By screwing the bolts into the pre-drilled holes in the ground, the entire device is fixed to prevent shaking during operation.

[0017] As a further description of the above technical solution: A second support plate is fixedly connected to the upper right front end of the fixed frame, and a control console is fixedly connected to the top of the second support plate.

[0018] Through the above technical solution: a second support plate extends from the upper right front of the fixed frame, and the control console installed on it integrates the core control module. The operator can precisely control the speed and start / stop of the motor, as well as the extension distance of the telescopic rod, through the control console to ensure that the conveyor belt and clamping mechanism operate as needed.

[0019] As a further description of the above technical solution: A cross is fixedly connected to the front side of the outer wall of the threaded rod, and a ring is fixedly connected to the outer wall of the cross.

[0020] Through the above technical solution: the cross and the ring fixed on the front side of the outer wall of the threaded rod form a composite operating structure. The ring provides a comfortable grip, while the cross increases the force application area. The operator only needs to hold the ring to easily drive the threaded rod and quickly complete the tension adjustment of the conveyor belt.

[0021] This utility model has the following beneficial effects: 1. In this utility model, the mounting frame has a sliding groove to accommodate the sliding block. The sliding strip on the mounting frame is adapted to the sliding groove and can slide back and forth. The ball bearing in the semi-circular groove of the sliding strip converts sliding friction into rolling friction, reducing resistance. When adjustment is required, the threaded rod rotates in the threaded sleeve and generates axial displacement, thereby driving the sliding block to slide back and forth in the mounting frame. The movement of the sliding block can accurately change the tension of the conveyor belt, ensuring that the material does not shift when the conveyor belt is running at high speed and reducing manufacturing costs.

[0022] 2. In this utility model, multiple fixed blocks are arranged in an orderly manner above and below the conveyor belt to form a stable clamping structure. The fixed blocks are connected by telescopic rods. When the blocks are contracted, they drive the connecting plate to tighten the clamping structure. The surface of the extrusion plate is non-slip and wear-resistant. When the material is in contact, the friction is increased to prevent slippage. The pressure sensor monitors the pressure in real time. Once the safety threshold is reached, a signal is sent immediately to stop the telescopic rod from applying force, thus achieving safe and stable clamping of the material. Attached Figure Description

[0023] Figure 1 This is a perspective view of a printing conveying device proposed in this utility model; Figure 2 This is a front view of a printing conveying device proposed in this utility model; Figure 3 This is an exploded view of the mounting frame in a printing conveying device according to the present invention; Figure 4 This is a split view of a threaded sleeve in a printing conveying device proposed in this utility model; Figure 5 This is a split view of the extrusion plate in a printing conveying device proposed in this utility model.

[0024] Legend: 1. Fixed frame; 2. Adjustment mechanism; 201. Mounting slot; 202. Mounting frame; 203. Slide groove; 204. Sliding block; 205. Sliding strip; 206. Semicircular groove; 207. Rotary ball; 208. Moving component; 2081. Threaded hole; 2082. Threaded sleeve; 2083. Threaded rod; 3. Conveyor belt; 4. Clamping mechanism; 401. Fixed block; 402. Telescopic rod; 403. Connecting plate; 404. Pressure sensor; 405. Extrusion plate; 406. Mounting component; 4061. Mounting plate; 4062. Bolt one; 5. Support plate one; 6. Motor; 7. Support column; 8. Base plate; 9. Bolt two; 10. Support plate two; 11. Control console; 12. Cross; 13. Ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 , Figure 3 and Figure 4 The present invention provides an embodiment of a printing conveying device, including a fixed frame 1, a conveyor belt 3 inside the fixed frame 1 for conveying materials, the same adjustment mechanism 2 on the left and right front ends inside the fixed frame 1 for adjusting the tension of the conveyor belt 3, and the same clamping mechanism 4 on the upper and lower sides of the conveyor belt 3 for clamping the top material of the conveyor belt 3 to prevent the material from moving. The adjustment mechanism 2 includes two mounting brackets 202. The opposite sides of the two mounting brackets 202 are fixedly connected to the left and right front ends of the interior of the fixed bracket 1. The left and right front ends of the interior of the fixed bracket 1 are each provided with a mounting groove 201. The opposite sides of the two mounting brackets 202 are fixedly connected to the interior of the mounting groove 201. The upper and lower sides of the interior of each of the two mounting brackets 202 are each provided with a sliding groove 203. Sliding blocks 204 are slidably connected to the interior of each of the two mounting brackets 202. Sliding strips 205 are fixedly connected to the upper and lower sides of each of the two sliding blocks 204. 205 can slide back and forth inside the slide groove 203, driving the sliding block 204 to slide back and forth inside the mounting bracket 202. Semicircular grooves 206 are provided on the opposite sides of the multiple slide bars 205. Rotary balls 207 are rotatably connected inside the multiple semicircular grooves 206. When the sliding block 204 slides back and forth, it drives the rotating balls 207 to slide back and forth inside the semicircular grooves 206, changing sliding friction into rolling friction and reducing friction. A moving component 208 is provided on the front side of the right rotating ball 207 to push the sliding block 204 to move back and forth. Specifically, the front left and right sides of the fixed frame 1 are each provided with a mounting groove 201. Two mounting frames 202 are respectively embedded in the corresponding mounting grooves 201. The fixed connection ensures that the mounting frames 202 are stably installed on the fixed frame 1, providing a reliable foundation for the operation of subsequent components. The upper and lower sides of the mounting frame 202 are provided with sliding grooves 203 to accommodate sliding blocks 204. The upper and lower ends of the sliding blocks 204 are fixedly connected to the sliding strips 205. The sliding strips 205 and the sliding grooves 203 are precisely matched, so that the sliding strips 205 can slide back and forth in the sliding grooves 203, thereby driving the sliding blocks 204 to move back and forth inside the mounting frame 202. On the side of the sliding strips 205 that is far away from each other, there is a semi-circular groove 206. The rotating ball 207 installed in the semi-circular groove 206 can rotate freely. When the sliding block 204 moves, the rotating ball 207 rolls in the semi-circular groove 206, converting the original sliding friction into rolling friction, which greatly reduces the friction during the movement process, allowing the conveyor belt 3 to change its tension and ensuring that the material does not shift when running at high speed.

[0027] Reference Figure 2 and Figure 5The clamping mechanism 4 includes multiple fixing blocks 401. The tops of the multiple fixing blocks 401 are disposed on the upper and lower sides of the conveyor belt 3. The bottom of each of the multiple fixing blocks 401 is provided with a mounting assembly 406 for mounting the fixing blocks 401. Telescopic rods 402 are fixedly connected between adjacent fixed blocks 401. Connecting plates 403 are fixedly connected between adjacent telescopic rods 402. The telescopic rods 402 push the connecting plates 403 to move inward. Pressure sensors 404 are fixedly connected between adjacent connecting plates 403. Extrusion plates 405 are fixedly connected between adjacent pressure sensors 404. When clamping materials, the extrusion plates 405 clamp the materials to further prevent material movement. Then, the pressure sensors 404 sense the pressure and stop the telescopic rods 402 to prevent damage to the materials. Specifically, multiple fixing blocks 401 are arranged in an orderly manner on the upper and lower sides of the conveyor belt 3, forming a stable clamping base. The bottom of each fixing block 401 is equipped with a mounting component 406. Adjacent fixing blocks 401 are connected by telescopic rods 402, which can be adjusted for extension and retraction according to actual needs. Connecting plates 403 are fixedly connected to the multiple telescopic rods 402. When the telescopic rods 402 retract, they drive the connecting plates 403 to move inward, thereby tightening the entire clamping structure. During the clamping process, pressure sensors 404 and extrusion plates 405 constitute a precise feedback control unit. Multiple extrusion plates 405... 5. The components are interconnected via connecting plates 403. When material needs to be clamped, the telescopic rod 402 retracts, causing the extrusion plate 405 to move closer to the material, gradually applying clamping force. The surface of the extrusion plate 405 is made of anti-slip and wear-resistant material to increase friction with the material and effectively prevent the material from sliding during transmission. The pressure sensor 404 monitors the pressure applied by the extrusion plate 405 in real time. Once the preset safe pressure threshold is reached, the pressure sensor 404 will immediately send a signal to stop the telescopic rod 402, thereby avoiding damage to the material due to excessive clamping force. This achieves safe and stable clamping and fixing of the material, ensuring the smooth progress of the entire transmission and processing process.

[0028] Reference Figure 1 , Figure 4 and Figure 5The moving component 208 includes a threaded sleeve 2082, the rear side of which is fixedly connected to the front side of the right sliding block 204. A threaded hole 2081 is provided on the front side of the mounting bracket 202, and a threaded rod 2083 is threadedly connected inside the threaded hole 2081. Rotating the threaded rod 2083 causes it to rotate inside the threaded sleeve 2082, driving the sliding block 204 to move back and forth, thus changing the tension of the conveyor belt 3. The mounting component 406 includes multiple mounting plates 4061, the tops of which are fixedly connected to... At the bottom of the fixing block 401, bolts 4062 are threaded through the four corners of the top of the multiple mounting plates 4061. The bottom of the outer wall of the multiple bolts 4062 is threaded to the upper and lower sides of the conveyor belt 3. The fixing block 401 is installed on the upper and lower sides of the conveyor belt 3 through the mounting plates 4061 and bolts 4062. A support plate 5 is fixedly connected to the rear right side of the fixing frame 1. A motor 6 is fixedly connected to the top of the support plate 5. The output end of the motor 6 is fixedly connected to the rear right side of the conveyor belt 3 for driving the conveyor belt 3 to operate. Specifically, the threaded sleeve 2082 is securely fixed to the front side of the right sliding block 204, while the threaded hole 2081 on the front side of the mounting bracket 202 provides space for the threaded rod 2083 to be threaded. When the operator rotates the threaded rod 2083, based on the principle of thread transmission, the threaded rod 2083 rotates within the threaded sleeve 2082 and generates axial displacement, thereby driving the sliding block 204 to slide back and forth within the mounting bracket 202. The movement of the sliding block 204 can precisely change the tension of the conveyor belt 3, ensuring that the conveyor belt 3 maintains appropriate tension during transmission. The tops of multiple mounting plates 4061 are tightly connected to the bottoms of the fixing block 401, and each mounting plate 4061 has a threaded hole at one of its four corners. Bolt 4062 is used to securely install the fixing block 401 onto the conveyor belt 3 by aligning it with the pre-set screw holes on the upper and lower sides of the conveyor belt 3 and tightening it. This not only ensures structural stability but also facilitates disassembly and adjustment, adapting to the clamping requirements of materials of different specifications. The support plate 5 at the rear right side of the fixing frame 1 provides a stable support platform for the motor 6. The motor 6 is mounted on the top of the support plate 5, and its output end is directly connected to the rear right side of the conveyor belt 3. When the motor 6 is powered on and started, the rotational power at the output end is directly transmitted to the conveyor belt 3, driving the conveyor belt 3 to operate stably at the set speed, thereby achieving efficient material transfer on the conveyor belt 3 and providing a reliable guarantee for subsequent processing.

[0029] Reference Figure 1 , Figure 2 and Figure 4Support columns 7 are fixedly connected to the four corners of the bottom of the fixed frame 1. Base plates 8 are fixedly connected to the bottom of the multiple support columns 7. Bolts 9 are fixedly connected to the four corners of the top of the multiple base plates 8. Bolts 9 are inserted into the ground to fix the device. Support plate 10 is fixedly connected to the front end of the upper right side of the fixed frame 1. Control console 11 is fixedly connected to the top of support plate 10 to control motor 6 and telescopic rod 402. Cross 12 is fixedly connected to the front side of the outer wall of threaded rod 2083. Ring 13 is fixedly connected to the outer wall of cross 12 to facilitate rotation of threaded rod 2083. Specifically, support columns 7 are fixedly connected to the four corners of the bottom of the fixed frame 1. The lower end of the support columns 7 is connected to the base plate 8. Bolts 9 are provided at the four corners of the top of the base plate 8. By screwing the bolts 9 into the reserved holes in the ground, the entire device is fixed to prevent shaking during operation. Support plate 10 extends from the upper right side of the fixed frame 1. The control console 11 installed on it integrates the core control module. The operator can accurately control the speed and start / stop of the motor 6 and the extension distance of the telescopic rod 402 through the control console 11 to ensure that the conveyor belt 3 and the clamping mechanism 4 operate as needed. The cross 12 and the ring 13 fixed on the front side of the outer wall of the threaded rod 2083 form a composite operating structure. The ring 13 provides a comfortable grip, while the cross 12 increases the force application area. The operator only needs to hold the ring 13 to easily drive the threaded rod 2083 and quickly complete the tension adjustment of the conveyor belt 3.

[0030] Working Principle: After the motor 6 on the right rear support plate 5 of the fixed frame 1 is powered on, the control console 11 on the upper right front support plate 10 of the fixed frame 1 can adjust the speed and start / stop of the motor 6 in real time. Its output end transmits the rotational power to the conveyor belt 3, driving the conveyor belt 3 to start running at the set speed, providing basic power for material transfer. When the material is placed on the conveyor belt 3 and moves to the clamping area with the conveyor belt 3, the fixed blocks 401 distributed on the upper and lower sides of the conveyor belt 3 begin to function. The telescopic rods 402 between adjacent fixed blocks 401 start to retract, driving the connecting plate 403 to move inward, thereby causing the extrusion plate 405 to move closer to the material. The anti-slip and wear-resistant material on the surface of the extrusion plate 405 increases the friction with the material. At the same time, the pressure sensor 404 monitors the clamping pressure in real time. When the pressure reaches the preset threshold... Pressure sensor 404 sends a signal to stop telescopic rod 402, achieving safe clamping and fixing of the material and ensuring that the material will not slip during transmission. If it is necessary to adjust the tension of conveyor belt 3 during operation, the operator can hold the ring 13 on the cross 12 on the front side of the outer wall of threaded rod 2083 and rotate threaded rod 2083. Due to the threaded connection between threaded rod 2083 and threaded hole 2081 on the front side of mounting frame 202 and threaded sleeve 2082 on the front side of right sliding block 204, the rotation of threaded rod 2083 generates axial displacement, which drives sliding block 204 to slide back and forth in mounting frame 202, thereby precisely changing the tension of conveyor belt 3 and maintaining appropriate transmission tension. The bottom of fixed frame 1 is fixed to the ground by support column 7, base plate 8 and bolt 29 to ensure stable operation of the device.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A printing conveying device, comprising a fixing frame (1), characterized in that: The fixed frame (1) is equipped with a conveyor belt (3). The fixed frame (1) is equipped with the same adjustment mechanism (2) on both the left and right front ends. The adjustment mechanism (2) is used to adjust the tension of the conveyor belt (3). The conveyor belt (3) is equipped with the same clamping mechanism (4) on both the upper and lower sides. The clamping mechanism (4) is used to clamp the top material of the conveyor belt (3) to prevent the material from moving. The adjustment mechanism (2) includes two mounting brackets (202). The two mounting brackets (202) are fixedly connected to the left and right front ends of the inside of the fixed bracket (1) on opposite sides. The fixed bracket (1) has mounting grooves (201) on both the left and right front ends. The two mounting brackets (202) are fixedly connected to the inside of the mounting grooves (201) on opposite sides. The two mounting brackets (202) have sliding grooves (203) on the upper and lower sides. The two mounting brackets (202) have sliding blocks (204) slidably connected inside. The two sliding blocks (204) have sliding strips (205) fixedly connected to the upper and lower sides. The sliding strips (205) have semi-circular grooves (206) on opposite sides. The semi-circular grooves (206) have rotating beads (207) rotatably connected inside. The rotating bead (207) on the right side is provided with a moving component (208) on the front side of the rotating bead (207).

2. The printing conveying device according to claim 1, characterized in that: The clamping mechanism (4) includes multiple fixing blocks (401), the tops of the multiple fixing blocks (401) are disposed on the upper and lower sides of the conveyor belt (3), the bottoms of the multiple fixing blocks (401) are each provided with an installation component (406), the multiple fixing blocks (401) are each fixedly connected with a telescopic rod (402), the multiple telescopic rods (402) are each fixedly connected with a connecting plate (403), the multiple connecting plates (403) are each fixedly connected with a pressure sensor (404), and the multiple pressure sensors (404) are each fixedly connected with a pressing plate (405).

3. The printing conveying device according to claim 1, characterized in that: The moving component (208) includes a threaded sleeve (2082), the rear side of which is fixedly connected to the front side of the right sliding block (204). The front side of the mounting bracket (202) is provided with a threaded hole (2081), and a threaded rod (2083) is threadedly connected inside the threaded hole (2081).

4. A printing conveying device according to claim 2, characterized in that: The mounting assembly (406) includes multiple mounting plates (4061), the tops of which are fixedly connected to the bottom of the fixing block (401), and bolts (4062) pass through the four corners of the tops of the multiple mounting plates (4061). The bottom of the outer wall of the multiple bolts (4062) is threaded to the upper and lower sides of the conveyor belt (3).

5. A printing conveying device according to claim 1, characterized in that: The right rear end of the fixed frame (1) is fixedly connected to a support plate (5), and the top of the support plate (5) is fixedly connected to a motor (6). The output end of the motor (6) is fixedly connected to the right rear end of the conveyor belt (3).

6. A printing conveying device according to claim 1, characterized in that: The four corners of the bottom of the fixed frame (1) are all fixedly connected with support columns (7), the bottom of the multiple support columns (7) are all fixedly connected with base plates (8), and the four corners of the top of the multiple base plates (8) are all fixedly connected with bolts (9).

7. A printing conveying device according to claim 1, characterized in that: The upper right front end of the fixed frame (1) is fixedly connected to a support plate 2 (10), and the top of the support plate 2 (10) is fixedly connected to a control console (11).

8. A printing conveying device according to claim 3, characterized in that: A cross (12) is fixedly connected to the front side of the outer wall of the threaded rod (2083), and a ring (13) is fixedly connected to the outer wall of the cross (12).