Ultrasonic gas meter shell positioning clamp and conveying device

Abstract

The utility model relates to an ultrasonic gas meter shell positioning clamp and a conveying device. The ultrasonic gas meter shell positioning clamp comprises a tray frame. The tray frame comprises four tray corner fittings and a bearing tray; the four tray corner fittings are connected with the bearing tray in an inserted mode to form a tray frame. The bearing tray is positioned in the middle of the four tray corner fittings; four positioning seats are fixedly arranged at the top of the bearing tray; a containing cavity groove used for containing a shell is formed among the four positioning bases. The ultrasonic gas meter shell positioning clamp is simple in structure, the shell of a gas meter can be conveniently positioned through the ultrasonic gas meter shell positioning clamp, the machining production efficiency of the shell is improved, streamlined operation of the assembly process can be achieved through the conveying device through mutual cooperation and synergistic effect of the ultrasonic gas meter shell positioning clamp and the conveying device, and therefore the assembly efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic gas meter accessories, and particularly relates to an ultrasonic gas meter shell positioning fixture and a conveying device. Background Art

[0002] An ultrasonic gas meter is a new generation of intelligent electronic metering instrument, which uses the difference in the upstream and downstream flight times of ultrasonic waves in a medium for metering. It has the advantages of high accuracy, high reliability, high safety, wide range ratio, good durability, small size, etc., and can be widely used in gas metering for residential users and industrial and commercial users. The ultrasonic gas meter can be customized with temperature and pressure compensation functions, which can effectively solve the metering loss caused by temperature and pressure changes in traditional mechanical gas meters.

[0003] The ultrasonic gas meter shell is the main component for sealing the ultrasonic gas meter. Usually, the assembly process of the front and rear steel shells of the ultrasonic gas meter and the static curing of the semi-finished product glue are all carried out by manual handling. During the handling process of the product, the shell is prone to sliding, resulting in quality risks. The manual labor intensity of employees is high, they are prone to fatigue, the labor input cost is high, and there are also problems such as poor consistency.

[0004] At the same time, in the existing manufacturing process of ultrasonic gas meters, the conveying device for the ultrasonic gas meter shell has low conveying stability and safety, complex operation and low efficiency; moreover, the conveying accuracy needs to be improved, which brings inconvenience to use.

[0005] In view of the above problems, it is necessary to improve them. Content of the Utility Model

[0006] The purpose of the utility model is to provide an ultrasonic gas meter shell positioning fixture, a conveying device and a using method of the conveying device, which have a simple structure, ingenious design, high automation degree and accurate positioning.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is: an ultrasonic gas meter shell positioning fixture, including a tray frame; the tray frame includes four tray corner pieces and a bearing tray; the four tray corner pieces are connected to the bearing tray in a plug-in manner to form a tray frame; the bearing tray is located in the middle of the four tray corner pieces; four positioning seats are fixedly arranged on the top of the bearing tray; a cavity groove for placing the shell is formed between the four positioning seats.

[0008] As a preferred scheme of the utility model, the bearing tray is embedded in the middle of the four tray corner pieces.

[0009] As a preferred scheme of the utility model, the four positioning seats are circumferentially arranged on the bearing tray, and there is a spacing between adjacent positioning seats.

[0010] As a preferred embodiment of the present utility model, a positioning block is fixedly provided on the inner side of the positioning seat close to the cavity groove, and a limiting groove is formed between the positioning block and the positioning seat.

[0011] As a preferred embodiment of the present utility model, the height of the positioning seat is greater than the height of the positioning block.

[0012] As a preferred embodiment of the present utility model, the top of the positioning seat close to the cavity groove has a guiding surface that gradually expands along the insertion direction of the housing.

[0013] The conveying device includes a conveying frame and a conveying motor; a conveying chain is assembled on the conveying frame, the conveying motor drives the conveying chain to rotate, and an ultrasonic gas meter housing positioning fixture is assembled on the conveying chain.

[0014] As a preferred embodiment of the present utility model, it further includes a limiting mechanism for positioning the ultrasonic gas meter housing positioning fixture on the conveying frame.

[0015] As a preferred embodiment of the present utility model, the limiting mechanism includes a mounting plate assembled at the bottom of the conveying frame, a driving cylinder fixedly provided at the bottom of the mounting plate, a driving shaft of the driving cylinder passing through the mounting plate and connecting to a push plate. Among them, the push plate is located inside the conveying frame, and the top of the push plate abuts against the bottoms of two pallet corner fittings arranged longitudinally.

[0016] As a preferred embodiment of the present utility model, two connecting plates are fixedly provided on the outer side of the mounting plate, a limiting vertical plate is vertically fixedly provided on the connecting plates, and a limiting plate is vertically fixedly provided on the limiting vertical plate. The limiting plate is located at the upper end of the pallet frame and has a spacing from the outer side of the positioning seat.

[0017] As a preferred embodiment of the present utility model, a limiting block is fixedly provided at the front end of the bottom of the limiting plate, and the limiting block fits on the carrying pallet.

[0018] As a preferred embodiment of the present utility model, the height of the limiting block is consistent with the height of the carrying pallet from the top of the pallet corner fitting.

[0019] As a preferred embodiment of the present utility model, the two limiting vertical plates are arranged staggeredly.

[0020] As a preferred embodiment of the present utility model, a guiding mechanism is assembled between the mounting plate and the push plate; the guiding mechanism includes at least one guiding cylinder and a guiding rod; the guiding cylinder is fixedly provided at the bottom of the mounting plate, one end of the guiding rod is fixedly provided at the bottom of the push plate, and the other end of the guiding rod passes through and extends outside the guiding cylinder.

[0021] The beneficial effects of the present utility model are:

[0022] 1. The structure of the utility model is simple. The set ultrasonic gas meter housing positioning fixture can facilitate the positioning of the gas meter housing and improve the processing and production efficiency of the housing. Through the mutual cooperation and synergy with the conveying device, the conveying device can realize the flow operation of the assembly process, thus significantly improving the assembly efficiency.

[0023] 2. The set ultrasonic gas meter housing positioning fixture of the utility model can also reduce the production cost. Due to the improvement of production efficiency, more housing assembly work can be completed per unit time, thus reducing the production cost of each product. In addition, the optimized design of the ultrasonic gas meter housing positioning fixture and the parallel conveying device also help to reduce the equipment waiting time and waste of human resources, further reducing the production cost.

[0024] 3. The utility model improves the flexibility and applicability of the conveying device. The conveying device can convey ultrasonic gas meter housings of different structures and models, and can be flexibly selected according to the assembly requirements of different products to meet various conveying needs. This flexibility enables the conveying device to adapt to products of different models and specifications, improving the applicability and flexibility of the conveying device.

[0025] 4. The utility model optimizes the space layout. The positioning fixture and the conveying device are ingeniously designed, and the design takes into account the effective use of space. The conveying device provides space for the installation of other auxiliary facilities such as pipelines and sensors, which is conducive to making the overall layout of the conveying device more compact and reasonable.

[0026] 5. The utility model realizes automatic operation. The conveying device realizes a high degree of automatic operation through an integrated control system and automatic equipment, reduces the dependence on manual operation, and improves the production efficiency and stability.

[0027] 6. The utility model improves the conveying safety and stability. By setting a limiting mechanism, it is used to position the ultrasonic gas meter housing positioning fixture on the conveying rack, prevent the ultrasonic gas meter housing positioning fixture from falling off the conveying rack, conduct logical control and coordination on the entire conveying and processing process, ensure the accuracy and consistency of the conveying and processing actions, and guarantee the product quality. At the same time, the precise cooperation between the limiting mechanism and the conveying rack can also ensure the accuracy and stability of the assembly.

[0028] In summary, the mutual cooperation between the ultrasonic gas meter housing positioning fixture and the conveying device realizes efficient, high-quality and low-cost assembly operations through innovative design and optimized technological processes, which is of great significance for improving production efficiency and reducing production costs. Brief Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of the ultrasonic gas meter housing positioning fixture in the embodiment of the utility model;

[0030] Figure 2 This is the usage state diagram of the positioning fixture for the ultrasonic gas meter housing in the embodiment of the present utility model;

[0031] Figure 3 This is the schematic connection structure diagram of the positioning fixture for the ultrasonic gas meter housing and the limiting mechanism in the embodiment of the present utility model;

[0032] Figure 4 This is the connection side view of the limiting mechanism in the embodiment of the present utility model;

[0033] Figure 5 This is the schematic structure diagram of the limiting mechanism in the embodiment of the present utility model;

[0034] Figure 6 This is the usage state diagram of the limiting mechanism in the embodiment of the present utility model;

[0035] Figure 7 This is the usage state diagram of the positioning fixture for the ultrasonic gas meter housing on the conveying device in the embodiment of the present utility model;

[0036] Figure 8 This is the side view of the positioning fixture for the ultrasonic gas meter housing on the conveying device in the embodiment of the present utility model;

[0037] Reference numerals in the figure: pallet frame 1, positioning seat 2, positioning block 3, limiting groove 4, conveying frame 5, limiting mechanism 6, guiding mechanism 9, pallet corner fitting 10, carrying pallet 11, cavity groove 20, guiding surface 21, conveying chain 50, conveying motor 51, mounting plate 60, driving cylinder 61, driving shaft 62, pushing plate 63, connecting plate 64, limiting vertical plate 65, limiting plate 66, limiting block 67, guiding cylinder 90, guiding rod 91, housing 100, positioning fixture for ultrasonic gas meter housing 200. Specific embodiments

[0038] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] Embodiment:

[0041] As Figure 1-2 shown, wherein, Figure 1 is a schematic structural view of the positioning fixture for the ultrasonic gas meter housing according to an embodiment of the present utility model; Figure 2 is a view showing the use state of the positioning fixture for the ultrasonic gas meter housing according to an embodiment of the present utility model.

[0042] The positioning fixture for the ultrasonic gas meter housing includes a tray frame 1; the tray frame 1 includes four tray corner pieces 10 and a bearing tray 11; the four tray corner pieces 10 and the bearing tray 11 are connected by a plug-in method to form the tray frame 1; the bearing tray 11 is located in the middle of the four tray corner pieces 10; four positioning seats 2 are fixedly provided on the top of the bearing tray 11; a cavity groove 20 for placing the housing 100 is formed between the four positioning seats 2;

[0043] The structure of the present utility model is simple. The provided positioning fixture for the ultrasonic gas meter housing can conveniently position the housing of the gas meter and improve the processing and production efficiency of the housing: through the mutual cooperation and synergy with the conveying device, the conveying device can realize the flow operation of the assembly process, thereby significantly improving the assembly efficiency.

[0044] The bearing tray 11 is embedded in the middle of the four tray corner pieces 10; the four positioning seats 2 are circumferentially arranged on the bearing tray 11, so that the center of gravity of the four positioning seats 2 is lower and the center of gravity after placing the housing 100 is more stable.

[0045] A spacing is left between adjacent positioning seats 2; the provided spacing facilitates the placement and movement of the housing 100 by the manipulator, provides convenience for the subsequent processing of the gas meter, and thus improves the processing efficiency.

[0046] The inner surface shape of the positioning seat 2 matches that of the housing 100, ensuring the stability and accuracy of the device.

[0047] A positioning block 3 is fixedly provided on the inner side of the positioning seat 2 close to the cavity groove 20, and a limiting groove 4 is formed between the positioning block 3 and the positioning seat 2; the provided limiting groove 4 is used for clamping the housing 10 to prevent the housing 10 from shaking and plays a role in positioning the housing 10.

[0048] The height of the positioning seat 2 is greater than that of the positioning block 3; when the outer shell 10 is assembled in the limiting groove 4, the positioning block 3 is used to abut against the outer shell 10, playing a role in supporting the outer shell 10 and ensuring the stability and safety of the outer shell 10 during transportation and processing.

[0049] The positioning seat 2 near the top of the cavity groove 20 has a guiding surface 21 that gradually expands along the insertion direction of the outer shell 100; the provided guiding surface 21 facilitates the assembly of the outer shell 100 into the cavity groove 20, improving the assembly efficiency of the outer shell 100.

[0050] As Figure 7-8 shown, among which, Figure 7 is the usage state diagram of the ultrasonic gas meter outer shell positioning fixture in the embodiment of the present utility model on the conveying device; Figure 8 is the side view of the ultrasonic gas meter outer shell positioning fixture in the embodiment of the present utility model on the conveying device.

[0051] The conveying device includes a conveying frame 5 and a conveying motor 51; a conveying chain 50 is assembled on the conveying frame 5, the conveying motor 51 drives the conveying chain 50 to rotate, and an ultrasonic gas meter outer shell positioning fixture 200 is assembled on the conveying chain 50; in this embodiment, multiple ultrasonic gas meter outer shell positioning fixtures 200 can be provided, evenly distributed on the conveying frame 5, which can achieve a comprehensive and continuous conveying and processing function, ensuring the continuous operation of the production line.

[0052] The ultrasonic gas meter outer shell positioning fixture provided by the present utility model can also reduce production costs: due to the improvement of production efficiency, more outer shell assembly work can be completed per unit time, thereby reducing the production cost of each product. In addition, the optimized design of the ultrasonic gas meter outer shell positioning fixture and the parallel conveying device also contribute to reducing equipment waiting time and waste of human resources, further reducing production costs.

[0053] The present utility model optimizes the space layout: the positioning fixture, the conveying device and the ingenious design consider the effective utilization of space. The conveying device provides space for the installation of other auxiliary facilities such as pipelines and sensors, which is conducive to making the overall layout of the conveying device more compact and reasonable.

[0054] The conveying chain 50 in this embodiment is a double-speed chain. This conveying chain 50 is similar to the chain used for material conveying and chain drive, and is a commonly used conveying chain, which is a roller chain. On the conveying frame 5, the moving speed of the conveying chain 50 remains unchanged, but the ultrasonic gas meter outer shell positioning fixture 200 and the outer shell 100 being conveyed above the conveying chain 50 can control the moving speed according to the operator's requirements, stop moving at the required stopping positions, and the operator can perform various assembly operations. After completing the above operations, the outer shell 100 continues to move forward for conveying.

[0055] In this embodiment, the conveying frame 5 uses a specially made surface-treated extruded aluminum alloy profile as a guide rail, so that the conveying chain 50 is assembled in the guide rail. The conveying device has very good stability and durability during the conveying process, and is suitable for large-scale continuous conveying of products. When the outer shell 100 is stopped during operation, there is rolling friction between the chain roller and the conveyed object, which greatly reduces the wear and operation resistance of the chain; when one or more outer shells 100 are stopped, it does not affect the conveying of other conveyed objects, and the conveying efficiency is relatively high.

[0056] The conveyor chain 50 uses rollers on both sides to bear the load and the middle roller to carry the load. The rollers are separated from the conveyor rollers to make the conveyor run more stably. Because the chain is basically wrapped in the aluminum body, only the roller protrudes about 2mm, which effectively prevents large foreign objects from being drawn into the chain. The overall appearance is more beautiful and relatively safe.

[0057] like Figure 3-6 As shown, Figure 3 This is a schematic diagram of the connection structure between the ultrasonic gas meter housing positioning fixture and the limiting mechanism according to the embodiment of the utility model; Figure 4 This is a connection side view of the limiting mechanism of the embodiment of the utility model; Figure 5 This is a schematic diagram of the structure of the limiting mechanism of an embodiment of the utility model; Figure 6 This is a usage status diagram of the limiting mechanism of an embodiment of the utility model.

[0058] The conveying device also includes a limiting mechanism 6 for positioning the ultrasonic gas meter housing positioning fixture 200 on the conveying frame 5; specifically, the limiting mechanism 6 includes a mounting plate 60 assembled on the bottom of the conveying frame 5, a driving cylinder 61 fixed to the bottom of the mounting plate 60, and a driving shaft 62 of the driving cylinder 61 passes through the mounting plate 60 to connect to a push plate 63, wherein the push plate 63 is located on the inner side of the conveying frame 5, and the top of the push plate 63 is against the bottom of two longitudinally arranged pallet corner pieces 10.

[0059] By setting the limiting mechanism 6, the ultrasonic gas meter shell is prevented from tipping over when moving on the conveying chain 50. The limiting mechanism 6 plays an auxiliary clamping role on the ultrasonic gas meter shell, thereby improving the stability of the ultrasonic gas meter shell transportation.

[0060] The utility model improves the safety and stability of transportation. By setting a limit mechanism, the ultrasonic gas meter housing positioning fixture is positioned on the conveying frame to prevent the ultrasonic gas meter housing positioning fixture from falling from the conveying frame. The entire conveying and processing process is logically controlled and coordinated, ensuring the accuracy and consistency of the conveying and processing actions and guaranteeing product quality. At the same time, the precise coordination of the limit mechanism and the conveying frame can also ensure the accuracy and stability of assembly.

[0061] On the outer side of the mounting plate 60, two connecting plates 64 are fixedly arranged. On the connecting plates 64, limiting vertical plates 65 are vertically fixedly arranged. On the limiting vertical plates 65, limiting plates 66 are vertically fixedly arranged. The limiting plates 66 are located at the upper end of the tray frame 1, leaving a distance from the outer side of the positioning seat 2. At the front end of the bottom of the limiting plate 66, a limiting block 67 is fixedly arranged, and the limiting block 67 is attached to the bearing tray 11.

[0062] By adopting the above technical solution, the contact area between the limiting block 67 and the bearing tray 11 is increased, thereby ensuring the use safety. At the same time, the height of the limiting block 67 is consistent with the height of the bearing tray 11 from the top of the tray corner fitting 10. When the limiting block 67 is attached to the bearing tray 11, the limiting plate 66 is attached to the top of the tray corner fitting 10, so that the limiting plate 66 and the limiting block 67 can be in contact with the tray corner fitting 10 and the bearing tray 11 at the same time, improving the use safety.

[0063] The two limiting vertical plates 65 are arranged staggeredly, making the force for positioning the tray frame 1 more balanced, ensuring that the ultrasonic gas meter housing positioning fixture will not change direction during transportation and being more convenient to use.

[0064] A guiding mechanism 9 is assembled between the mounting plate 60 and the push plate 63. The guiding mechanism 9 includes at least one guiding cylinder 90 and a guiding rod 91. The guiding cylinder 90 is fixedly arranged at the bottom of the mounting plate 60, one end of the guiding rod 91 is fixedly arranged at the bottom of the push plate 63, and the other end of the guiding rod 91 passes through and extends outside the guiding cylinder 90.

[0065] Through the arrangement of the guiding mechanism 9, by starting the driving cylinder 61 to drive the push plate 63 to move upward, the push plate 63 is made to approach the positions of the two longitudinally arranged tray corner fittings 10, for limiting the ultrasonic gas meter housing positioning fixture 200 on the conveying rack 5, so that the driving shaft 62 of the driving cylinder 61 and the guiding rod 91 limit the bottom of the ultrasonic gas meter housing, and at the same time, together with the limiting block 67 of the limiting mechanism 6, fix the two sides and the bottom of the ultrasonic gas meter housing positioning fixture, thus ensuring the stability during the shell processing operation.

[0066] The using method of the conveying device includes the following steps:

[0067] Step 1: First, start the driving cylinder 61 to drive the push plate 63 to move upward, so that the push plate 63 approaches the positions of the two longitudinally arranged tray corner fittings 10, for limiting the ultrasonic gas meter housing positioning fixture 200 on the conveying rack 5 to prevent the ultrasonic gas meter housing positioning fixture 200 from falling off the conveying rack 5.

[0068] Step 2: Secondly, use a manipulator to clamp and place the housing 100 on the ultrasonic gas meter housing positioning fixture 200, start the conveying motor 51 to drive the conveying chain 50 to rotate, and then make the housing 100 move at a uniform speed.

[0069] Step 3: When the ultrasonic gas meter housing positioning fixture 200 moves uniformly to the position to be processed, turn off the conveying motor 51. At this time, the conveying chain 50 stops rotating, and the manipulator can perform the assembly operation on the housing 100;

[0070] Step 4: After the assembly operation of the housing 100 is completed, the ultrasonic gas meter housing positioning fixture 200 is driven by the conveying motor 51 and the conveying chain 50 again to move to the next area of the position to be processed.

[0071] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0072] Although the terms such as pallet frame 1, positioning seat 2, positioning block 3, limiting groove 4, conveying frame 5, limiting mechanism 6, guiding mechanism 9, pallet corner fitting 10, carrying pallet 11, cavity groove 20, guiding surface 21, conveying chain 50, conveying motor 51, mounting plate 60, driving cylinder 61, driving shaft 62, pushing plate 63, connecting plate 64, limiting vertical plate 65, limiting plate 66, limiting block 67, guiding cylinder 90, guiding rod 91, housing 100, ultrasonic gas meter housing positioning fixture 200, etc. are used more in this article, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. Ultrasonic gas meter housing positioning fixture, characterized in that: It includes a tray frame (1); the tray frame (1) includes four tray corner fittings (10) and a bearing tray (11); the four tray corner fittings (10) are connected to the bearing tray (11) in a plug-in manner to form the tray frame (1); the bearing tray (11) is located in the middle of the four tray corner fittings (10); four positioning seats (2) are fixedly arranged on the top of the bearing tray (11); a cavity groove (20) for placing the housing (100) is formed between the four positioning seats (2).

2. The ultrasonic gas meter housing positioning fixture according to claim 1, wherein: The four positioning seats (2) are circumferentially arranged on the bearing tray (11), and there is a spacing between adjacent positioning seats (2).

3. The ultrasonic gas meter housing positioning fixture according to claim 1 or 2, characterized in that: A positioning block (3) is fixedly arranged on the inner side of the positioning seat (2) close to the cavity groove (20), and a limiting groove (4) is formed between the positioning block (3) and the positioning seat (2).

4. The ultrasonic gas meter housing positioning fixture according to claim 3, characterized in that: The top of the positioning seat (2) close to the cavity groove (20) has a guiding surface (21) that gradually expands along the insertion direction of the housing (100).

5. Conveying device, characterized in that, It includes a conveying frame (5) and a conveying motor (51); a conveying chain (50) is assembled on the conveying frame (5), the conveying motor (51) drives the conveying chain (50) to rotate, and an ultrasonic gas meter housing positioning fixture (200) is assembled on the conveying chain (50); the ultrasonic gas meter housing positioning fixture (200) is the ultrasonic gas meter housing positioning fixture described in any one of claims 1 to 4.

6. The conveying device according to claim 5, characterized in that: It further includes a limiting mechanism (6) for positioning the ultrasonic gas meter housing positioning fixture (200) on the conveying frame (5).

7. The conveying device according to claim 6, characterized in that: The limiting mechanism (6) includes a mounting plate (60) assembled at the bottom of the conveying frame (5), a driving cylinder (61) fixedly arranged at the bottom of the mounting plate (60), a driving shaft (62) of the driving cylinder (61) passes through the mounting plate (60) and is connected to a push plate (63), wherein the push plate (63) is located inside the conveying frame (5), and the top of the push plate (63) abuts against the bottoms of two longitudinally arranged tray corner fittings (10).

8. The conveying device according to claim 7, characterized in that: Two connecting plates (64) are fixedly arranged on the outer side of the mounting plate (60), a limiting vertical plate (65) is vertically fixedly arranged on the connecting plate (64), a limiting plate (66) is vertically fixedly arranged on the limiting vertical plate (65), the limiting plate (66) is located at the upper end of the tray frame (1) and has a spacing from the outer side of the positioning seat (2); the two limiting vertical plates (65) are arranged staggeredly.

9. The conveying device according to claim 8, wherein: A limiting block (67) is fixedly arranged at the front end of the bottom of the limiting plate (66), and the limiting block (67) fits on the bearing tray (11).

10. The conveying device according to claim 7, wherein: A guiding mechanism (9) is assembled between the mounting plate (60) and the push plate (63); the guiding mechanism (9) includes at least one guiding cylinder (90) and a guiding rod (91); the guiding cylinder (90) is fixedly arranged at the bottom of the mounting plate (60), one end of the guiding rod (91) is fixedly arranged at the bottom of the push plate (63), and the other end of the guiding rod (91) passes through and extends outside the guiding cylinder (90).

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