A reciprocating gunite machine

By introducing a vibration and follow-up fixing system into the leather spraying equipment, the problems of uneven spraying and unstable leather material conveying were solved, achieving uniform spraying and stable conveying of the slurry on the leather surface and improving the spraying effect.

CN122124951BActive Publication Date: 2026-07-21JINJIANG XINLING LEATHER CRAFT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JINJIANG XINLING LEATHER CRAFT CO LTD
Filing Date
2026-05-08
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing leather spraying equipment has shortcomings in terms of spray uniformity and leather material conveying stability, resulting in uneven coating and poor spraying effect.

Method used

The system employs a vibration system and a following fixing system. The vibration system provides vibration power to the leather material by passing through the conveying system from the bottom up, while the following fixing system ensures stable conveying of the leather material through a following reference frame, slide bar, and pneumatic adsorption device. Combined with a reciprocating spraying system, the system achieves uniform spraying of the slurry.

Benefits of technology

It achieves uniform spraying and stable delivery of the slurry on the leather surface, improves the spraying effect, and avoids problems such as uneven coating and leather material misalignment.

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Abstract

The present application relates to a kind of reciprocating gunite machine, belong to the technical field of injection equipment, including reciprocating gunite system, drying system, conveying system, gunite frame, follow-up fixing system, excess material recycling system, vibration system and exhaust suction system, vibration system is installed in gunite frame, vibration system from downside to upwards through conveying system, reciprocating gunite system is installed on gunite frame, follow-up fixing system includes follow-up datum frame, follow-up datum slide, follow-up pneumatic adsorption device, air release datum plate, elastic reset device and buffer device, follow-up datum slide is installed on follow-up datum frame, follow-up pneumatic adsorption device is slid along follow-up datum slide, the both ends of elastic reset device are respectively installed between follow-up pneumatic adsorption device and follow-up datum frame, buffer device is installed on follow-up datum frame, follow-up pneumatic adsorption device is equipped with air release valve, follow-up datum slide end is equipped with air release datum plate matched with the air release valve, guarantee uniform spraying.
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Description

Technical Field

[0001] This invention relates to the field of shotcrete equipment technology, and in particular to a reciprocating shotcrete machine. Background Technology

[0002] A reciprocating leather spray gun is a reciprocating pump device specifically designed for coating leather surfaces. Its core purpose is to achieve precise control, save paint, and improve spray uniformity. This type of equipment typically consists of a spray chamber, a reciprocating drive system, multiple spray guns, a leather conveyor belt, and a drying device.

[0003] Its working principle is as follows: the spray gun is driven by an eccentric shaft or air pressure to reciprocate, or by a motor belt to reciprocate, pressurizing and delivering the slurry to the spray gun. The large reciprocating motion results in large spray pulses, affecting the smoothness of the coating.

[0004] To address the issue of uneven coating, modern improved equipment employs vibration of the leather to rapidly and evenly distribute the coating paste. However, this can cause the leather to shift laterally during transport due to vibration, potentially even detaching it from the coating area and affecting the coating effect. Therefore, existing coating equipment still has room for improvement in ensuring uniform coating. Summary of the Invention

[0005] To overcome the technical defects of the existing technology, the present invention provides a reciprocating shotcrete machine to ensure uniform spraying.

[0006] The technical solution adopted in this invention is: A reciprocating shotcrete machine includes a reciprocating shotcrete system, a drying system, a conveying system, a shotcrete frame, a following fixing system, a waste material recovery system, a vibration system, and a waste gas extraction system. The vibration system is installed inside the shotcrete frame and passes through the conveying system from below. The conveying system passes through the inside of the shotcrete frame. The reciprocating shotcrete system is slidably mounted on the shotcrete frame, and its sliding direction is perpendicular to the conveying direction of the conveying system. The following fixing system includes a following reference frame, a following reference slide bar, a following pneumatic adsorption device, a venting reference plate, an elastic reset device, and a buffer device. The following reference frame is installed inside the shotcrete frame. The following reference slide is installed on the following reference frame. The direction of each following reference slide is consistent with the conveying direction of the conveying system. The conveying system passes through the following reference slide, and the directions of each following reference slide are parallel to each other. The following pneumatic adsorption device slides along the following reference slide. The two ends of the elastic reset device are respectively installed between the following pneumatic adsorption device and the following reference frame. The buffer device is installed on the side of the following reference frame near the following reference slide. The sliding trajectory of the following pneumatic adsorption device points to the buffer device. The bottom of the following pneumatic adsorption device is provided with a venting valve. The end of the following reference slide is equipped with a venting reference plate adapted to the venting valve.

[0007] Preferably, the reciprocating shotcrete system includes a reciprocating shotcrete slide rail, a reciprocating shotcrete pipe frame, and a shotcrete reciprocating motor. The shotcrete reciprocating motor is mounted on the shotcrete machine frame, the reciprocating shotcrete pipe frame is slidably mounted on the reciprocating shotcrete slide rail, the reciprocating shotcrete slide rail is mounted on the shotcrete machine frame, the reciprocating shotcrete slide rail runs horizontally, and the reciprocating shotcrete slide rail is perpendicular to the conveying direction of the conveying system. The shotcrete reciprocating motor is drivenly connected to the reciprocating shotcrete pipe frame.

[0008] Preferably, the drying system includes several ventilation motors, which are mounted on the top of the shotcrete machine frame.

[0009] Preferably, the conveying system includes a plurality of conveying rollers and conveyor belts, the conveying rollers being rotatably mounted on a shotcrete machine frame, a conveying motor for driving the conveying rollers being mounted on the shotcrete machine frame, and each of the conveyor belts being wound around each conveying roller.

[0010] Preferably, the waste material recycling system includes a waste material collection hopper and a waste material collection pump. The waste material collection pump is installed on the shotcrete frame, the waste material collection hopper is located at the bottom of the shotcrete frame, and the waste material collection pump is connected to the reciprocating shotcrete system.

[0011] Preferably, the exhaust gas extraction system includes several exhaust fans and spray boxes, with the exhaust fans installed between the spray boxes and the shotcrete machine frame.

[0012] Preferably, the follow-type pneumatic adsorption device includes an adsorption sliding frame and a suction cup. The venting valve is installed on the lower side of the suction cup, and the suction cup is installed on the adsorption sliding frame. A guide rod is provided on the top of the suction cup near the reciprocating spraying system. The guide rod is inclined downward and extends to the lower side of the conveying system.

[0013] Preferably, the vibration system includes a vibrating plate and a vibration motor, wherein the upper limit position of the vibrating plate during vibration is 0.3 cm to 0.5 cm higher than the conveying position of the conveying system.

[0014] The beneficial effects of this invention are: The vibration system is installed inside the shotcrete frame. The vibration system passes through the conveying system from the bottom to the top, providing vibration power to the leather material and achieving uniform vibration of the slurry on the surface of the leather material. The conveying system passes through the inside of the shotcrete frame to transport the leather material. The reciprocating shotcrete system is slidably installed on the shotcrete frame. The sliding direction of the reciprocating shotcrete system is perpendicular to the conveying direction of the conveying system, which facilitates the uniform spraying of slurry onto the leather material.

[0015] The following fixed system includes a following reference frame, a following reference slide bar, a following pneumatic adsorption device, an air release reference plate, an elastic reset device, and a buffer device. The following reference frame is installed inside the shotcrete machine frame to install each following reference slide bar. The following reference slide bars are installed on the following reference frame by welding. The direction of each following reference slide bar is consistent with the conveying direction of the conveying system. The conveying system passes through the following reference slide bars, and the directions of each following reference slide bar are parallel to each other. The following pneumatic adsorption device slides along the following reference slide bars.

[0016] After adsorbing the bottom of the leather, the following pneumatic adsorption device moves with the leather and slides along the following reference slide bar. The protection of the following reference slide bar prevents wear on the conveying system during sliding. Furthermore, it prevents the conveying system from creating resistance to the sliding of the following pneumatic adsorption device when it resets. The two ends of the elastic reset device are respectively installed between the following pneumatic adsorption device and the following reference frame to drive the following pneumatic adsorption device to reset. A buffer device is installed on the side of the following reference frame near the following reference slide bar. To absorb the impact generated by the reset, the sliding trajectory of the following pneumatic adsorption device points towards the buffer device. The bottom of the following pneumatic adsorption device is equipped with an air release valve, and the end of the following reference slide rod is equipped with an air release reference plate adapted to the air release valve. After the following pneumatic adsorption device slides to the limit position with the leather, the spraying and vibration of the leather on the leather will stop. The air release valve will contact the air release reference plate, causing the air release valve to release air, which in turn causes the following pneumatic adsorption device to release air, disconnecting the connection between the following pneumatic adsorption device and the leather. The following pneumatic adsorption device will then reset, while the leather will continue to be transported by the conveying system.

[0017] The operating principle of the follow-type pneumatic adsorption device is that when the leather passes through, the follow-type pneumatic adsorption device picks up the bottom of the leather and moves with the bottom of the leather. The follow-type pneumatic adsorption device slides along the follow reference slide until the air release valve touches the air release reference plate to release the air and release the adsorption effect of the pneumatic adsorption device. The elastic reset device drives the follow-type pneumatic adsorption device to reset and achieve reset. The follow-type pneumatic adsorption device is buffered under the buffer device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of a reciprocating shotcrete system.

[0020] Figure 3 This is a schematic diagram of the conveying system structure.

[0021] Figure 4 This is a schematic diagram of a following fixed system.

[0022] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0023] Figure 6 This is a schematic diagram of a following fixed system.

[0024] Explanation of reference numerals in the attached figures: 1. Reciprocating shotcrete system; 11. Reciprocating shotcrete guide rail; 12. Reciprocating shotcrete pipe frame; 13. Reciprocating shotcrete motor; 2. Drying system; 3. Conveying system; 31. Conveying rollers; 32. Conveying belt; 33. Conveying motor; 4. Shotcrete machine frame; 5. Follower-type fixing system; 51. Follower reference frame; 52. Follower reference slide bar; 53. Follower-type pneumatic adsorption device; 531. Adsorption slide frame; 532. Suction cup; 5321. Guide rod; 55. Degassing reference plate; 56. Elastic reset device; 57. Buffer device; 6. Vibration system. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings: like Figure 1 — Figure 6As shown, this embodiment provides a reciprocating shotcrete machine, including a reciprocating shotcrete system 1, a drying system 2, a conveying system 3, a shotcrete machine frame 4, a following fixing system 5, a residual material recovery system, a vibration system 6, and an exhaust gas extraction system. The vibration system 6 is installed inside the shotcrete machine frame 4 and passes through the conveying system 3 from the bottom to the top, providing vibration power to the leather material to achieve uniform vibration of the shotcrete on the surface of the leather material. The conveying system 3 passes through the inside of the shotcrete machine frame 4 to realize the conveying of the leather material. The reciprocating shotcrete system 1 is slidably installed on the shotcrete machine frame 4, and the sliding direction of the reciprocating shotcrete system 1 is perpendicular to the conveying direction of the conveying system 3, which facilitates the uniform spraying of shotcrete on the leather material.

[0026] The following fixed system 5 includes a following reference frame 51, a following reference slide bar 52, a following pneumatic adsorption device 53, an air release reference plate 55, an elastic reset device 56, and a buffer device 57. The following reference frame 51 is installed inside the shotcrete machine frame 4 to install each following reference slide bar 52. Each following reference slide bar 52 is installed on the following reference frame 51 by welding. The direction of each following reference slide bar 52 is consistent with the conveying direction of the conveying system 3. The conveying system 3 passes through the following reference slide bar 52, and the directions of each following reference slide bar 52 are parallel to each other. The following pneumatic adsorption device 53 slides along the following reference slide bar 52.

[0027] Specifically, after the following pneumatic adsorption device 53 adsorbs the bottom of the leather, it follows the movement of the leather and slides along the following reference slide bar 52. The following reference slide bar 52 protects the following pneumatic adsorption device 53 from wear on the conveying system 3 during sliding. From another perspective, when the following pneumatic adsorption device 53 resets, the conveying system 3 avoids resistance to its sliding. The two ends of the elastic reset device 56 are respectively installed between the following pneumatic adsorption device 53 and the following reference frame 51 to drive the following pneumatic adsorption device 53 to reset. A rubber buffer device 57 is installed on the following reference frame 51 near the following reference. On one side of the slide bar 52, the impact generated by the reset is absorbed. The sliding trajectory of the following pneumatic adsorption device 53 points to the buffer device 57. The bottom of the following pneumatic adsorption device 53 is provided with an air release valve. The end of the following reference slide bar 52 is equipped with an air release reference plate 55 adapted to the air release valve. After the following pneumatic adsorption device 53 slides to the limit position with the leather, the spraying and vibration of the leather will stop. The air release valve contacts the air release reference plate 55, causing the air release valve to release air, which in turn causes the following pneumatic adsorption device 53 to release air, disconnecting the connection between the following pneumatic adsorption device 53 and the leather. The following pneumatic adsorption device 53 then resets, while the leather is continued to be transported by the conveying system 3.

[0028] In summary, the operating principle of the following pneumatic adsorption device 53 is that when each piece of leather passes through the following pneumatic adsorption device 53, the following pneumatic adsorption device 53 sucks up the bottom of the leather and moves together with the bottom of the leather. The following pneumatic adsorption device 53 slides along the following reference slide bar 52 until the venting valve touches the venting reference plate 55 to release the air, thereby releasing the adsorption effect of the following pneumatic adsorption device 53. The elastic reset device 56 drives the following pneumatic adsorption device 53 to reset and achieve reset. The following pneumatic adsorption device 53 is buffered under the buffer device 57.

[0029] Specifically, the reciprocating shotcrete system 1 includes a reciprocating shotcrete slide rail 11, a reciprocating shotcrete pipe frame 12, and a shotcrete reciprocating motor 13. The shotcrete reciprocating motor 13 is mounted on the shotcrete machine frame 4, and the reciprocating shotcrete pipe frame 12 is slidably mounted on the reciprocating shotcrete slide rail 11. The reciprocating shotcrete slide rail 11 is mounted on the shotcrete machine frame 4. The reciprocating shotcrete slide rail 11 runs horizontally and is perpendicular to the conveying direction of the conveying system 3. The shotcrete reciprocating motor 13 and the reciprocating shotcrete pipe frame 12 are connected by a conventional synchronous belt to realize the reciprocating lateral shotcrete movement of the reciprocating shotcrete pipe frame 12.

[0030] Specifically, the drying system 2 includes several ventilation motors, which are installed on the top of the shotcrete frame 4. The ventilation function of the ventilation motors enables the rapid drying of the slurry.

[0031] Specifically, the conveying system 3 includes several conveying rollers 31 and conveyor belts 32. The conveying rollers 31 are rotatably mounted on the shotcrete frame 4. The shotcrete frame 4 is equipped with a conveying motor 33 that drives the conveying rollers 31. Each conveyor belt 32 is wound around each conveying roller 31. The leather is placed on the conveyor belt 32 to realize the conveying of the leather. The conveyor belt 32 passes through the following reference slide bar 52. The following reference slide bar 52 is not only used to protect the conveyor belt 32, but also to stabilize the lateral position of the conveyor belt 32 and prevent the leather from shifting laterally.

[0032] Specifically, the waste material recovery system includes a waste material collection hopper and a waste material collection pump. The waste material collection pump is installed on the shotcrete frame 4, and the waste material collection hopper is located at the bottom of the shotcrete frame 4. The waste material collection pump is connected to the reciprocating shotcrete system 1 to pump out the waste material for reuse. This is existing technology and will not be described in detail here.

[0033] Specifically, the exhaust gas extraction system includes several exhaust fans and spray boxes. The exhaust fans are installed between the spray boxes and the shotcrete machine frame 4 to draw the atomized waste slurry into the spray boxes for dust removal. This is existing technology and will not be described in detail here.

[0034] Specifically, the follow-type pneumatic adsorption device 53 includes an adsorption sliding frame 531 and a suction cup 532. An air release valve is installed on the lower side of the suction cup 532. The suction cup 532 is connected to a vacuum pump through the air release valve. The suction cup 532 is installed on the adsorption sliding frame 531. A guide rod 5321 is provided on the top of the side of the suction cup 532 near the reciprocating spraying system 1. The guide rod 5321 is inclined downward. It is worth noting that the guide rod 5321 should extend to the lower side of each conveyor belt 32 to avoid the suction cup 532 interfering with the movement of the cowhide material.

[0035] Specifically, the vibration system 6 includes a vibrating plate and a vibration motor. The upper limit position of the vibrating plate during vibration is 0.3 cm to 0.5 cm higher than the conveying position of the conveying system 3, thereby vibrating the leather. Both ends of the vibrating plate are bent downward to form a guide surface, thereby achieving uniform distribution of the slurry.

[0036] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A reciprocating shotcrete machine, characterized in that, The system includes a reciprocating shotcrete system, a drying system, a conveying system, a shotcrete frame, a following fixing system, a waste material recovery system, a vibration system, and a waste gas extraction system. The vibration system is installed inside the shotcrete frame and passes through the conveying system from below. The conveying system passes through the inside of the shotcrete frame. The reciprocating shotcrete system is slidably mounted on the shotcrete frame, and its sliding direction is perpendicular to the conveying direction of the conveying system. The following fixing system includes a following reference frame, a following reference slide bar, a following pneumatic adsorption device, a venting reference plate, an elastic reset device, and a buffer device. The following reference frame is installed inside the shotcrete frame. The rod is installed on the following reference frame. The direction of each following reference slide rod is consistent with the conveying direction of the conveying system. The conveying system passes through the following reference slide rods, and the directions of each following reference slide rod are parallel to each other. The following pneumatic adsorption device slides along the following reference slide rod. The two ends of the elastic reset device are respectively installed between the following pneumatic adsorption device and the following reference frame. The buffer device is installed on the side of the following reference frame near the following reference slide rod. The sliding trajectory of the following pneumatic adsorption device points to the buffer device. The bottom of the following pneumatic adsorption device is provided with a venting valve. The end of the following reference slide rod is equipped with a venting reference plate adapted to the venting valve.

2. The reciprocating shotcrete machine according to claim 1, characterized in that, The reciprocating shotcrete system includes a reciprocating shotcrete slide rail, a reciprocating shotcrete pipe frame, and a shotcrete reciprocating motor. The shotcrete reciprocating motor is mounted on the shotcrete machine frame. The reciprocating shotcrete pipe frame is slidably mounted on the reciprocating shotcrete slide rail. The reciprocating shotcrete slide rail is mounted on the shotcrete machine frame. The reciprocating shotcrete slide rail runs horizontally and is perpendicular to the conveying direction of the conveying system. The shotcrete reciprocating motor is connected to the reciprocating shotcrete pipe frame via a transmission connection.

3. A reciprocating shotcrete machine according to claim 1, characterized in that, The drying system includes several ventilation motors, which are mounted on the top of the shotcrete machine frame.

4. A reciprocating shotcrete machine according to claim 1, characterized in that, The conveying system includes several conveying rollers and conveyor belts. The conveying rollers are rotatably mounted on the shotcrete machine frame, and the shotcrete machine frame is equipped with a conveying motor that drives the conveying rollers. Each of the conveyor belts is wound around each conveying roller.

5. A reciprocating shotcrete machine according to claim 1, characterized in that, The waste material recycling system includes a waste material collection hopper and a waste material collection pump. The waste material collection pump is installed on the shotcrete frame, the waste material collection hopper is located at the bottom of the shotcrete frame, and the waste material collection pump is connected to the reciprocating shotcrete system.

6. A reciprocating shotcrete machine according to claim 1, characterized in that, The exhaust gas extraction system includes several exhaust fans and spray boxes, with the exhaust fans installed between the spray boxes and the shotcrete machine frame.

7. A reciprocating shotcrete machine according to claim 1, characterized in that, The following pneumatic adsorption device includes an adsorption sliding frame and a suction cup. The venting valve is installed on the lower side of the suction cup. The suction cup is installed on the adsorption sliding frame. A guide rod is provided on the top of the suction cup near the reciprocating spraying system. The guide rod is inclined downward and extends to the lower side of the conveying system.

8. A reciprocating shotcrete machine according to claim 1, characterized in that, The vibration system includes a vibrating plate and a vibration motor. The upper limit position of the vibrating plate during vibration is 0.3 cm to 0.5 cm higher than the conveying position of the conveying system.