Material detection equipment

By integrating material inspection equipment that includes feeding, inspection, picking, rejection, and replenishment, the problem of existing AOI equipment being unable to automatically reject defective products has been solved, realizing a fully automated inspection process, improving production efficiency and reducing product damage rate.

CN224222057UActive Publication Date: 2026-05-12HUIZHOU DEPANG PRECISION AUTOMATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU DEPANG PRECISION AUTOMATION CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing automated optical inspection (AOI) equipment cannot automatically reject defective products and replenish materials when inspecting precision components such as lenses, resulting in low production efficiency and high manual labor intensity.

Method used

A material inspection device integrating feeding, inspection, picking, rejection of defective products and replenishment is designed. It includes a feeding mechanism, an inspection mechanism, a picking mechanism, a replenishment mechanism and a suction mechanism. The fully automated process is achieved through a control unit. The buffer spring of the suction mechanism is used to prevent product damage. There are separate trays for qualified and unqualified products.

Benefits of technology

It has achieved a complete closed-loop operation process from automatic material picking and visual inspection to automatic waste rejection and replenishment, which has significantly improved production efficiency, reduced product damage rate, and reduced manual intervention.

✦ Generated by Eureka AI based on patent content.

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Abstract

The material detection equipment comprises a rack, a feeding mechanism, a detection mechanism, a material taking mechanism, a material supplementing mechanism and a material sucking mechanism, the feeding mechanism, the detection mechanism, the material taking mechanism, the material supplementing mechanism and the material sucking mechanism are arranged on the rack, the feeding mechanism is used for storing products to be detected and detected products, and the detection mechanism comprises a detection camera and an adjusting mechanism in transmission connection with the detection camera. The material taking mechanism is used for transferring the to-be-detected product from the material supply mechanism to the detection mechanism and sending the detected product back to the material supply mechanism; the material supplementing mechanism comprises a material supplementing platform which is movably arranged on the rack, a qualified product tray position and an unqualified product tray position are arranged on the material supplementing platform, and the material sucking mechanism is arranged on the side part of the detection camera and is used for removing unqualified products and supplementing the qualified products; according to the material detection equipment provided by the scheme, by integrating the functions of feeding, detecting, taking, rejecting unqualified products, supplementing materials and the like, a full-automatic detection process is realized, manual intervention is reduced, and the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and in particular to a material detection device. Background Technology

[0002] With the rapid development of electronic products, especially the increasing number of cameras in devices such as mobile phones, the quality requirements for precision components such as lenses are becoming increasingly stringent. Traditional manual inspection methods are not only inefficient but also prone to missed or false inspections due to human error, failing to meet the demands of large-scale production. To improve inspection efficiency and accuracy, automated optical inspection (AOI) equipment has gradually been introduced into the production process. However, most existing AOI equipment only has inspection functions and cannot automatically reject defective products or replenish materials, still requiring manual intervention, resulting in low production efficiency and high labor intensity. Utility Model Content

[0003] The purpose of this invention is to provide a material testing device that integrates functions such as feeding, testing, picking, rejecting unqualified products, and replenishing materials to achieve a fully automated testing process, reduce manual intervention, and improve production efficiency.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] This utility model provides a material testing device, including a frame and a component mounted on the frame:

[0006] The material supply mechanism is used to store products to be tested and products that have already been tested.

[0007] The detection mechanism includes a detection camera and an adjustment mechanism that is drivenly connected to the detection camera.

[0008] The material handling mechanism is used to transfer the product to be tested from the material feeding mechanism to the testing mechanism, and to return the tested product to the material feeding mechanism.

[0009] The feeding mechanism includes a feeding platform movably mounted on the frame, the feeding platform having a qualified material tray and a non-qualified material tray;

[0010] The suction mechanism, installed on the side of the inspection camera, is used to reject unqualified products and replenish qualified products.

[0011] Specifically, in this embodiment, the feeding mechanism includes a hopper for carrying the product to be tested, a first clamping mechanism for fixing the hopper, and a first lifting mechanism installed on the side of the hopper for driving the hopper to move up and down.

[0012] Specifically, in this embodiment, the feeding mechanism further includes a tray installed in the hopper for carrying the product to be tested.

[0013] Specifically, in this embodiment, the material handling mechanism includes a clamping mechanism for gripping the material tray, a second lifting mechanism for driving the clamping mechanism to move up and down, and a linear drive mechanism installed at the bottom of the second lifting mechanism for driving the clamping mechanism to move horizontally.

[0014] Specifically, in this embodiment, the detection mechanism further includes a control unit that is communicatively connected to the detection camera for controlling the adjustment mechanism.

[0015] Specifically, in this embodiment, the adjustment mechanism includes a horizontal movement mechanism mounted on the top of the frame for driving the detection camera to move horizontally, and a third lifting mechanism mounted on the horizontal movement mechanism for driving the detection camera to move vertically.

[0016] Specifically, in this embodiment, the suction mechanism is communicatively connected to the control unit and is used to discard or return the product to be tested according to the instructions of the control unit, and to pick up qualified products for replenishment after discarding unqualified products to be tested.

[0017] Specifically, in this embodiment, the suction mechanism includes a suction head, a fourth lifting cylinder for driving the suction head to move up and down, and a buffer spring installed between the suction head and the fourth lifting cylinder for preventing damage to the product to be tested.

[0018] Specifically, in this embodiment, the suction mechanism further includes a first clamping mechanism for fixing the suction head.

[0019] Specifically, in this embodiment, a longitudinal traversing mechanism mounted on the frame is also included for driving the material handling mechanism and the material replenishing mechanism to move in the horizontal front-back direction.

[0020] Compared with the prior art, the material detection equipment provided by the embodiments of this application has many advantages, such as: (1) The material detection equipment can realize a complete closed-loop operation process from automatic material picking and visual inspection to automatic waste rejection and replenishment, which significantly improves the overall production efficiency compared with traditional substation detection equipment. (2) The material detection equipment has a buffer spring in its suction mechanism, which can effectively prevent crushing of products and reduce product damage rate. (3) The material detection equipment has separate trays for qualified and unqualified products, which can automatically complete the rejection of unqualified products and the replenishment of qualified products, and realize the full-load return of the trays to the warehouse. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a material testing device provided in an embodiment of the present invention.

[0023] Figure 2 for Figure 1 The diagram shows the structure of the material detection equipment from another direction.

[0024] Figure 3 for Figure 1 The diagram shows the structure of the feeding mechanism of the material detection equipment.

[0025] Figure 4 for Figure 1 The diagram shows the structure of the material handling mechanism of the material detection equipment.

[0026] Figure 5 for Figure 4 A schematic diagram of the material handling mechanism from another direction.

[0027] Figure 6 for Figure 1 The diagram shows the structural schematic of the detection mechanism of the material detection equipment.

[0028] Figure 7 for Figure 1 The diagram shows the structure of the material suction mechanism of the material detection equipment.

[0029] In the diagram: 1. Frame; 2. Feeding mechanism; 21. Hopper; 22. First clamping mechanism; 23. First lifting mechanism; 24. Material tray; 3. Picking mechanism; 31. Clamping mechanism; 311. Clamping arm; 312. Clamping cylinder; 32. Second lifting mechanism; 33. Linear drive mechanism; 4. Detection mechanism; 41. Detection camera; 42. Lateral movement mechanism; 43. Third lifting mechanism; 5. Suction mechanism; 51. Suction head; 52. Fourth lifting cylinder; 53. Buffer spring; 54. Second clamping mechanism; 6. Feeding mechanism; 61. Feeding platform; 7. Longitudinal movement mechanism. Detailed Implementation

[0030] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0032] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when this utility model is in use. They are only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0034] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0035] Please refer to the following first. Figure 1 The embodiments of this application provide a material detection device, including a frame 1 and a feeding mechanism 2, a detection mechanism 4, a picking mechanism 3, a replenishing mechanism 6 and a suction mechanism 5 mounted on the frame 1.

[0036] In this embodiment, Figure 1 The XYZ coordinate system shown is defined as follows: the X-axis is the horizontal left-right direction, the Y-axis is the horizontal front-back direction, and the Z-axis is the vertical up-down direction. For example, the horizontal movement of the material handling mechanism 3 from the hopper 21 carrying the material tray 24, the movement of the detection camera 41 via the transverse mechanism 42, and the movement of the replenishment platform 61 on the frame 1 are all in the horizontal left-right direction; the longitudinal movement mechanism 7 drives the movement of the material handling mechanism 3 and the replenishment mechanism 6, which is in the horizontal front-back direction; and the vertical movement of each lifting mechanism is in the vertical up-down direction.

[0037] Please refer to the following: Figure 2 The feeding mechanism 2 includes a hopper 21, a first lifting mechanism 23, a first clamping mechanism 22, and multiple trays 24. The trays 24 are used to hold products to be inspected and are placed inside the hopper 21. In this embodiment, the hopper 21 is preferably configured as a drawer-type structure, with multiple tray positioning slots arranged horizontally in parallel. These slots are linearly arranged at equal intervals, forming multiple independent workstations. Each positioning slot has a guide flange and a limiting block to keep the trays 24 horizontally stable during the lifting and lowering of the hopper 21. The first lifting mechanism 23 is installed on the side of the hopper 21, with its drive end located at the bottom of the hopper 21. It can include existing lifting devices, such as a linear module driven by a servo motor, to achieve precise lifting and lowering of the hopper 21. The first clamping mechanism 22 is installed on the hopper 21 to fix the hopper 21 when the first lifting mechanism 23 lifts and lowers it, and to prevent displacement of the hopper 21 when the material handling mechanism 3 handles material handling within the hopper 21.

[0038] Please refer to the following: Figure 3 , Figure 4 and Figure 5 The material handling mechanism 3 is used to transfer the product to be tested from the hopper 21 to the testing mechanism 4, and to return the tested product to the hopper 21. The material handling mechanism 3 includes a clamping mechanism 31 for gripping the tray 24, a second clamping mechanism 54 for driving the clamping mechanism 31 to open and close, a second lifting mechanism 32 for driving the clamping mechanism 31 to move up and down, and a linear drive mechanism 33 installed at the bottom of the second lifting mechanism 32 for driving the clamping mechanism 31 to move horizontally. The linear drive mechanism 33 may include, for example, a linear module driven by a servo motor, for driving the clamping mechanism 31 to move horizontally. In this embodiment, the clamping mechanism 31 includes a pair of openable clamping arms 311 and a clamping cylinder 312 pulverizedly connected to the clamping arms 311. The clamping cylinder 312 is driven by a linkage mechanism of a slide cylinder to make the two clamping arms 311 open and close synchronously. The second lifting mechanism 32 may include, for example, a conventional drive device, such as a cylinder assembly, for driving the clamping mechanism 31 to move vertically.

[0039] Please refer to the following: Figure 6The inspection mechanism 4 includes an inspection camera 41 for inspecting the product to be inspected, an adjustment mechanism driven by the inspection camera 41, and a control unit for controlling the adjustment mechanism via communication with the inspection camera 41. The inspection camera 41 performs comprehensive and detailed inspection of the product to be inspected using optical inspection technology. It captures image information of the product using optical imaging principles, and then identifies defects, dimensional deviations, and other problems on the product surface through image processing and analysis algorithms. The inspection camera 41 is driven by the adjustment mechanism, which adjusts the position of the inspection camera 41 to adapt to different inspection requirements and the position of the product to be inspected. The control unit is communicatively connected to the detection camera 41. The control unit receives the detection data fed back by the detection camera 41, analyzes and processes it, and then sends control commands to the adjustment mechanism to achieve precise control of the adjustment mechanism. The adjustment mechanism includes a horizontal moving mechanism 42 mounted on the top of the frame 1 for driving the detection camera 41 to move horizontally, and a third lifting mechanism 43 mounted on the horizontal moving mechanism 42 for driving the detection mechanism 4 to move vertically. The horizontal moving mechanism 42 and the third lifting mechanism 43 may include, for example, existing servo motor driven linear modules for driving the detection camera 41 to move in the horizontal and vertical directions.

[0040] The replenishment mechanism 6 includes a replenishment platform 61 movably mounted on the frame 1. The replenishment platform 61 is mounted below the detection mechanism 4 and on the side of the picking mechanism 3. The replenishment platform 61 has qualified product trays and unqualified product trays. The replenishment platform 61 may include, for example, a linear module driven by a servo motor, for moving the qualified product trays and unqualified product trays horizontally left and right on the frame 1. When the suction mechanism 5 discards unqualified products or replenishes materials, the replenishment platform 61 moves the qualified product trays and unqualified product trays horizontally below the suction mechanism 5, so that the suction mechanism 5 selects different trays to discard unqualified products or pick up qualified products according to different instructions.

[0041] The material inspection equipment also includes a longitudinal movement mechanism 7 mounted on the frame 1 for driving the material picking mechanism 3 and the material replenishing mechanism 6 to move in the horizontal front-back direction. The longitudinal movement mechanism 7 may include, for example, a linear module driven by an existing servo motor, for driving the clamping mechanism 31 mounted on the longitudinal movement mechanism 7 to move horizontally front-back, so that the inspection camera 41 can perform more comprehensive inspection of the products on the material tray 24; it can also drive the material replenishing platform 61 to move horizontally front-back, so that the unqualified products taken out by the suction mechanism 5 are placed into the unqualified product tray, and the qualified products taken out from the qualified product tray are placed into the material tray 24 held by the clamping mechanism 31.

[0042] Please refer to the following: Figure 6The suction mechanism 5 is installed on the side of the detection camera 41. It moves horizontally and vertically under the drive of the adjustment mechanism along with the detection camera 41. The suction mechanism 5 is connected to the control unit and is used to discard or return the product to be tested according to the instructions of the control unit, and to pick up qualified products for replenishment after discarding unqualified products. The control unit sends control instructions to the adjustment mechanism according to the feedback from the detection camera 41. The adjustment mechanism drives the detection camera 41 and the suction mechanism 5 to move above the product. The suction mechanism 5 discards or returns the product according to the instructions.

[0043] The suction mechanism 5 includes a suction head 51, a fourth lifting mechanism for raising and lowering the suction head 51, and a buffer spring 53 installed between the suction head 51 and the fourth lifting mechanism to prevent damage to the product. The fourth lifting mechanism includes, for example, a conventional lifting device, such as a cylinder assembly, for driving the suction head 51 to move vertically. The buffer spring 53 absorbs and disperses the impact force of the fourth lifting mechanism when the suction head 51 contacts the product, thus protecting the product. In this embodiment, the suction head 51 is connected to one end of the buffer spring 53, allowing the suction head 51 to obtain a certain elastic support and cushioning effect during operation. The other end of the buffer spring 53 is connected to the fourth lifting mechanism, and the movement of the fourth lifting mechanism can be transmitted to the suction head 51 through the buffer spring 53. The fourth lifting mechanism in the suction mechanism 5 is communicatively connected to a control unit, which can send commands to the fourth lifting mechanism to control its extension and retraction, thereby controlling the raising and lowering of the suction head 51.

[0044] Specifically, the suction mechanism 5 also includes a second clamping mechanism 54 for fixing the suction head 51. The second clamping mechanism 54 is directly connected to the suction head 51 and is installed around the suction head 51. It firmly fixes the suction head 51 in a suitable position through a specific clamping method (such as a snap-fit ​​or bolt fastening) to ensure that the suction head 51 will not loosen or shift during operation. Furthermore, when the suction head 51 malfunctions or requires regular maintenance, the second clamping mechanism 54 allows operators to easily remove the suction head 51 from the equipment for inspection and maintenance.

[0045] The working principle of the material testing equipment is explained in detail below.

[0046] When using the material testing equipment, the material tray 24 containing the products to be tested is first placed in the silo 21; and a material tray 24 filled with qualified products is placed in the qualified product tray position on the replenishment platform 61, and an empty material tray 24 is placed in the unqualified product tray position.

[0047] Then, the first lifting mechanism 23 drives the hopper 21 to rise to the material picking position, and the first clamping mechanism 22 is activated to fix the position of the hopper 21 to prevent shaking. The material tray 24 inside the hopper 21 is fixed by the positioning groove to ensure accurate positioning when picking up materials.

[0048] Next, the clamping arms 311 of the clamping mechanism 31 of the material handling mechanism 3 open under the drive of the clamping cylinder 312. The linear drive mechanism 33 drives the two clamping arms 311 to move to both sides of the material tray 24. The clamping cylinder 312 actuates, causing the two clamping arms 311 to close through the linkage mechanism. The planar clamping surface on the inner side of the clamping arms 311 is completely in contact with the planar frame on both sides of the material tray 24 to achieve clamping and fixing. The linear drive mechanism 33 drives the clamping mechanism 31 to move horizontally, bringing the material tray 24 out of the hopper 21. The second lifting mechanism 32 adjusts the height of the clamping mechanism 31 and transports it to below the detection camera 41.

[0049] The inspection camera 41, in coordination with the horizontal movement mechanism 42 and the third lifting mechanism 43, scans and inspects the products on the tray 24. The vertical movement mechanism 7 drives the picking mechanism 3 and the replenishing mechanism 6 to move horizontally back and forth, bringing the tray 24 into the inspection field of view or adjusting it to the replenishing position. The control unit receives the image data transmitted by the inspection camera 41, analyzes the inspection results, and marks unqualified products.

[0050] The fourth lifting cylinder 52 of the suction mechanism 5 descends, and the suction head 51 picks up the defective products. The longitudinal movement mechanism 7 drives the material tray 24 on the clamping mechanism 31 and the material tray 24 on the replenishment platform 61 to move, so that the empty material tray in the defective material tray position on the replenishment platform 61 moves to below the suction mechanism 5. The suction mechanism 5 discards the defective products into the empty material tray. The replenishment platform 61 moves horizontally left and right, moving the material tray 24 full of qualified products to below the suction mechanism 5. The suction mechanism 5 picks up the qualified products. The longitudinal movement mechanism 7 drives the material tray 24 on the clamping mechanism 31 and the material tray 24 on the replenishment platform 61 to move again, so that the material tray 24 to be tested moves to below the suction mechanism 5. The suction mechanism 5 places the qualified products in the material tray 24 to be tested, completing the replenishment.

[0051] After all the products in the tray 24 held by the clamping mechanism 31 have been inspected, the clamping mechanism 31 moves under the drive of the longitudinal movement mechanism 7 to align with the hopper 21. Then, the second lifting cylinder lifts the clamping mechanism 31 to the same height as when picking up the material. The linear drive mechanism 33 drives the tray 24 back to its original position in the hopper 21. The first clamping mechanism 22 releases, and the clamping mechanism 31 exits from the hopper 21 under the drive of the linear drive mechanism 33, completing one cycle of inspection.

[0052] The equipment automatically repeats the above process until all the material trays 24 in the hopper 21 have been inspected.

[0053] Based on the specific structure and working principle described above, the material detection equipment provided by the embodiments of this application can achieve many beneficial technical effects compared with the prior art, such as: (1) The material detection equipment can realize a complete closed-loop operation process from automatic material picking and visual inspection to automatic waste rejection and replenishment, which significantly improves the overall production efficiency compared with traditional substation detection equipment. (2) The material detection equipment's suction mechanism 5 is equipped with a buffer structure, which can effectively prevent damage to the product and reduce the product damage rate. (3) The material detection equipment's replenishment mechanism 6 is equipped with a tray for placing qualified and unqualified products, which can automatically complete the rejection of unqualified products and the replenishment of qualified products, realizing the full-load return of the tray 24 to the warehouse.

[0054] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A material testing device, characterized in that, Includes the rack (1) and the components mounted on the rack (1): The feeding mechanism (2) is used to store products to be tested and products that have been tested; The detection mechanism (4) includes a detection camera (41) and an adjustment mechanism that is drively connected to the detection camera (41); The material handling mechanism (3) is used to transfer the product to be tested from the material supply mechanism (2) to the testing mechanism (4) and to return the tested product to the material supply mechanism (2). The feeding mechanism (6) includes a feeding platform (61) movably mounted on the frame (1), and the feeding platform (61) is provided with a qualified material tray and a non-qualified material tray; The suction mechanism (5) is installed on the side of the inspection camera (41) and is used to remove unqualified products and replenish qualified products.

2. The material testing equipment according to claim 1, characterized in that, The feeding mechanism (2) includes a hopper (21) for carrying the product to be tested, a first lifting mechanism (23) installed on the side of the hopper (21) for driving the hopper (21) to move up and down, and a first clamping mechanism (22) for fixing the hopper (21) during the lifting movement.

3. The material testing equipment according to claim 2, characterized in that, The feeding mechanism (2) also includes a tray (24) installed in the hopper (21) for carrying the product to be tested.

4. The material testing equipment according to claim 3, characterized in that, The material handling mechanism (3) includes a clamping mechanism (31) for clamping the material tray (24), a second lifting mechanism (32) for driving the clamping mechanism (31) to move up and down, and a linear drive mechanism (33) installed at the bottom of the second lifting mechanism (32) for driving the clamping mechanism (31) to move horizontally.

5. The material testing equipment according to claim 1, characterized in that, The detection mechanism (4) also includes a control unit that is communicatively connected to the detection camera (41) for controlling the adjustment mechanism.

6. The material testing equipment according to claim 5, characterized in that, The adjustment mechanism includes a horizontal movement mechanism (42) mounted on the top of the frame (1) for driving the detection camera (41) to move horizontally, and a third lifting mechanism (43) mounted on the horizontal movement mechanism (42) for driving the detection camera (41) to move vertically.

7. A material testing device according to claim 6, characterized in that, The suction mechanism (5) is communicatively connected to the control unit and is used to discard or return the product to be tested according to the instructions of the control unit, and to pick up qualified products for replenishment after discarding unqualified products to be tested.

8. The material detection device according to claim 1, characterized in that, The suction mechanism (5) includes a suction head (51), a fourth lifting cylinder (52) for driving the suction head (51) to rise and fall, and a buffer spring (53) installed between the suction head (51) and the fourth lifting cylinder (52) to prevent the product to be tested from being crushed.

9. A material testing device according to claim 8, characterized in that, The suction mechanism (5) further includes a second clamping mechanism (54) for fixing the suction head (51).

10. A material testing device according to claim 1, characterized in that, It also includes a longitudinal movement mechanism (7) mounted on the frame (1) for driving the material handling mechanism (3) and the feeding mechanism (6) to move in the horizontal front-back direction.