Feeding device

Abstract

The utility model provides a feeding device which comprises a feeding rotary disc, a feeding driving assembly, a feeding pushing assembly and a plurality of feeding and stacking supports, a plurality of feeding fixing through holes are formed in the feeding rotary disc in the circumferential direction of the feeding rotary disc at equal intervals, and the feeding and stacking supports are fixed to the feeding fixing through holes in a one-to-one correspondence and penetrating mode. Each feeding and stacking support is provided with a feeding and stacking area used for stacking and containing culture dishes one by one in the vertical direction and a first avoiding area communicating with the bottom of the feeding and stacking area, the feeding driving assembly is in transmission connection with the feeding rotary disc to rotate, and in the rotating process of the feeding rotary disc, all the feeding and stacking supports circularly move to a first station one by one. The feeding and stacking area in the corresponding feeding and stacking support is adjacent to and communicates with the operation area through the first avoiding area in the horizontal direction, and the feeding and pushing assembly is used for entering the feeding and stacking area through the first avoiding area. And the culture vessels located at the bottom of the feeding and stacking area are pushed one by one in the horizontal direction to enter the operation area through the first avoiding area.

Description

Technical Field

[0001] The present application belongs to the technical field of microbiological experimental equipment, and more specifically, to a feeding device. Background Art

[0002] Microbiological experiments are scientific experiments used to study the growth and reproduction, metabolic pathways, biological toxicity and genetic composition of microorganisms. They can provide important data and information for many fields such as clinical medicine, food safety and environmental monitoring.

[0003] Usually, microbial samples need to be pretreated before microbial experiments. The specific steps are to spray code the culture vessels, then add the corresponding experimental sample liquid and culture matrix to the culture vessels step by step based on the spray code information, and finally shake and collect them. The above steps can be completed together through the microbial pretreatment system. However, some microbial pretreatment systems still require experimenters to manually load materials based on the actual processing progress during operation. Especially when the experimental sample size is large, the manual loading method leads to reduced experimental efficiency. Utility Model Content

[0004] The purpose of the present application is to provide a feeding device, which is aimed at solving the problem that some microbial pretreatment systems require experimenters to manually feed materials based on the actual processing progress during operation, especially when the experimental sample size is large, the manual feeding method leads to reduced experimental efficiency.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a loading device for transporting culture vessels to the working area, including a loading turntable, a loading drive assembly, a loading push assembly and a plurality of loading stacking brackets, the loading turntable is provided with a plurality of loading fixing through holes equidistantly opened along its circumference, each loading stacking bracket is correspondingly penetrated and fixed on each loading fixing through hole, the loading stacking bracket has a loading stacking area for stacking and accommodating culture vessels one by one in the vertical direction, and a first avoidance area connected to the bottom of the loading stacking area, the loading drive assembly is transmission-connected to the self-rotation of the loading turntable, so that each loading stacking bracket is cyclically moved to the first station one by one during the self-rotation of the loading turntable;

[0006] When any loading and stacking bracket is located at the first workstation, the loading and stacking area in the corresponding loading and stacking bracket is connected to the working area via the first avoidance area in the horizontal direction, and the loading and pushing assembly is used to enter the loading and stacking area via the first avoidance area, and push the culture vessels located at the bottom of the loading and stacking area one by one in the horizontal direction through the first avoidance area into the working area.

[0007] In one of the embodiments, the loading and stacking bracket includes a loading bracket body and a loading bracket supporting ring, the loading bracket supporting ring is fixed on the outer periphery of the loading bracket body, the loading bracket body is passed through the loading fixed through hole, the loading bracket supporting ring is supported on the edge of the corresponding loading fixed through hole, the loading bracket body has a loading and stacking area for stacking culture vessels one by one in a vertical direction, and a first avoidance area connected to the bottom of the loading and stacking area, and each loading bracket body moves cyclically to the first workstation one by one during the rotation of the loading turntable.

[0008] In one embodiment, the loading and pushing assembly includes a loading and pushing driving guide rail, a loading and pushing driving cylinder and a loading and pushing unit, the loading and pushing driving guide rail is connected to the loading and pushing driving cylinder in a horizontal direction, the loading and pushing driving cylinder is connected to the loading and pushing unit in a vertical direction, and the first avoidance area of ​​the loading and pushing unit and each loading bracket body is located below the loading turntable;

[0009] When any loading bracket body is located at the first station and the loading pushing unit is located at the second station, the loading pushing unit is horizontally spaced relative to a culture vessel at the bottom of the loading stacking area in the corresponding loading bracket body, and the loading pushing driving guide rail is used to drive the loading pushing unit located at the second station in the horizontal direction through the first avoidance area into the loading stacking area to push the corresponding culture vessel, until the loading pushing unit and the corresponding culture vessel leave the loading stacking area through the first avoidance area, and when the loading pushing unit is located at the third station, the corresponding culture vessel is immediately located in the operating area, and the loading pushing driving cylinder is used to descend the loading pushing unit located at the third station in the vertical direction until the loading pushing unit avoids the loading bracket body located at the first station in the horizontal direction, and after the loading pushing driving guide rail retracts the loading pushing unit to an appropriate position in the horizontal direction, the loading pushing driving cylinder raises the loading pushing unit to the second station in the vertical direction.

[0010] In one of the embodiments, the loading device also includes a loading platen driving guide rail, a loading platen connecting piece and a loading platen assembly. The loading platen driving guide rail is connected to the loading platen connecting piece in a vertical direction. The loading platen assembly is elastically connected to the loading platen connecting piece in a vertical direction and suspended above a loading bracket body located at the first workstation. The loading bracket body has a second avoidance area that is connected to the top of the loading stacking area and avoids the loading platen assembly in the vertical direction.

[0011] In one embodiment, the loading pressure plate assembly includes a first connecting shaft, a first limiting gasket, a first buffer spring and a first pressure plate body. The first connecting shaft is movably arranged on the loading pressure plate connecting piece along the vertical direction. The first connecting shaft is fixedly connected to the first pressure plate body at one end facing the loading bracket body. The first connecting shaft is fixedly connected to the first limiting gasket at one end facing away from the loading bracket body. The first limiting gasket is used to limit and abut the side of the loading pressure plate connecting piece facing away from the first pressure plate body. The first buffer spring is coaxially sleeved on the first connecting shaft, and the opposite ends of the first buffer spring are elastically abutted against the side of the loading pressure plate connecting piece facing the first pressure plate body, and the side of the first pressure plate body facing the loading pressure plate connecting piece.

[0012] In one embodiment, the feeding drive assembly includes a feeding drive motor, a feeding transmission unit and a feeding reduction unit. The feeding drive motor is connected to the feeding reduction unit through the feeding transmission unit, and the feeding reduction unit is connected to the feeding turntable for rotation.

[0013] In one of the embodiments, the feeding transmission unit includes a feeding transmission shaft, a first feeding transmission gear, a second feeding transmission gear, a feeding transmission belt and a feeding coupling. The first feeding transmission gear and the second feeding transmission gear are respectively mounted on the feeding drive motor and the feeding transmission shaft. The feeding transmission belt is driven and wound around the first feeding transmission gear and the second feeding transmission gear. The feeding transmission shaft is connected to the feeding reduction unit through the feeding coupling.

[0014] The beneficial effect of the loading device provided in the present application is that, compared with the prior art, the above-mentioned loading device can be directly installed at an appropriate position in the microbial sample pretreatment system, so that when the loading turntable rotates any loading stacking bracket to the first station, the loading stacking bracket located at the first station can be connected to the working area via the first avoidance area in the horizontal direction, and the loading pushing assembly then enters the loading stacking area via the first avoidance area, and pushes the culture vessels located at the bottom of the loading stacking area one by one in the horizontal direction through the first avoidance area into the working area. It can be seen that the above loading process does not require manual operation by the experimenter, thereby effectively improving the experimental efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of the structure of a microbial sample pretreatment system provided in one embodiment of the present application;

[0017] Figure 2 for Figure 1 Schematic diagram of the internal structure of the microbial sample pretreatment system shown;

[0018] Figure 3 for Figure 2 A schematic diagram of the top view of the microbial sample pretreatment system shown;

[0019] Figure 4 for Figure 1 A schematic diagram of the structure of a feeding device in the microbial sample pretreatment system shown;

[0020] Figure 5 for Figure 4 A schematic structural diagram of the feeding device from another perspective is shown;

[0021] Figure 6 for Figure 4 A schematic diagram of the structure of a loading and stacking bracket in the loading device shown;

[0022] Figure 7 for Figure 4 A schematic structural diagram of the first pressure plate main body in the feeding device shown.

[0023] 10. Microbial sample pretreatment system; 20. Culture vessel; 100. Feeding device; 110. Feeding turntable; 112. Feeding fixed through hole; 120. Feeding drive assembly; 121. Feeding drive motor; 122. Feeding transmission unit; 1221. Feeding transmission shaft; 1222. First feeding transmission gear; 1223. Second feeding transmission gear; 1224. Feeding transmission belt; 1225. Feeding coupling; 123. Feeding reduction unit; 130. Feeding push assembly; 131. Feeding push drive guide rail; 132. Material pushing driving cylinder; 133, material loading pushing unit; 140, material loading stacking bracket; 141, material loading stacking area; 142, first avoidance area; 143, second avoidance area; 144, material loading bracket body; 145, material loading bracket supporting ring; 151, material loading pressure plate driving guide rail; 152, material loading pressure plate connecting piece; 153, material loading pressure plate assembly; 1531, first connecting shaft; 1532, first limiting gasket; 1533, first buffer spring; 1534, first pressure plate body; 800, working area; 900, system bracket. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] Please also read Figure 1 , Figure 2 and Figure 3 , a microbial sample pretreatment system 10 provided in an embodiment of the present application is now described. The above-mentioned microbial sample pretreatment system 10 includes a loading device 100, an operation area 800 and a system support 900, wherein the loading device 100 and the operation area 800 are both arranged on the system support 900, and the loading device 100 is used to collect the culture vessel 20 and automatically transfer the culture vessel 20 to the operation area 800; it should be noted that, in this embodiment, the above-mentioned operation area 800 is a working platform for supporting the culture vessel 20, or is an actuator for performing corresponding pretreatment steps on the culture vessel 20.

[0029] Please also read Figure 4 and Figure 5In this embodiment, the loading device 100 includes a loading turntable 110, a loading drive assembly 120, a loading push assembly 130 and a plurality of loading stacking brackets 140, wherein the edge of the loading turntable 110 is provided with a plurality of loading fixing through holes 112 equidistantly along its circumference, and each loading stacking bracket 140 is correspondingly penetrated and fixed on each loading fixing through hole 112, and the loading stacking bracket 140 has a loading stacking area 141 for stacking and accommodating culture vessels 20 one by one in a vertical direction, and a first avoidance area 142 connected to the bottom of the loading stacking area 141, the loading drive assembly 120 and the loading push assembly 130 are both arranged on the system bracket 900, and the loading drive assembly 120 and the loading push assembly 130 are both arranged on the system bracket 900, and the loading drive assembly 120 and the loading push assembly 130 are both arranged on the system bracket 900. The dynamic component 120 is connected to the loading turntable 110 for rotation, so that each loading stacking bracket 140 moves cyclically to the first station one by one during the rotation of the loading turntable 110, and when any loading stacking bracket 140 is located at the first station, the loading stacking area 141 in the loading stacking bracket 140 correspondingly located at the first station is adjacent to one end of the working area 800 in the horizontal direction through the first avoidance area 142, and the loading pushing component 130 is then used to enter the loading stacking area 141 through the first avoidance area 142, and push the culture vessels 20 located at the bottom of the loading stacking area 141 one by one in the horizontal direction through the first avoidance area 142 to enter the working area 800.

[0030] The beneficial effect of the loading device 100 provided in the present application is that, compared with the prior art, the above-mentioned loading device 100 can be directly installed at an appropriate position in the microbial sample pretreatment system 10, so that when the loading turntable 110 rotates any loading stacking bracket 140 to the first station, the loading stacking bracket 140 located at the first station can be adjacent to one end of the working area 800 via the first avoidance area 142 in the horizontal direction, and the loading pushing assembly 130 then enters the loading stacking area 141 through the first avoidance area 142, and pushes the culture vessels 20 located at the bottom of the loading stacking area 141 one by one in the horizontal direction through the first avoidance area 142 into the working area 800. It can be seen that the above loading process does not require manual operation by the experimenter, thereby effectively improving the experimental efficiency.

[0031] See also Figure 6 In the present embodiment, the above-mentioned loading and stacking bracket 140 comprises a loading bracket body 144 and a loading bracket supporting ring 145, wherein the loading bracket supporting ring 145 is fixedly arranged on the outer periphery of the loading bracket body 144, the loading bracket body 144 is passed through and fixed on the loading fixing through hole 112, and the loading bracket supporting ring 145 is supported on the upper edge of the corresponding loading fixing through hole 112, so that it is convenient to quickly remove the loading and stacking bracket 140 upward from the loading fixing through hole 112 in the vertical direction, or to quickly install the loading and stacking bracket 140 downward from the loading fixing through hole 112 in the vertical direction.

[0032] Specifically, in this embodiment, the above-mentioned loading bracket body 144 has a loading stacking area 141 for stacking culture vessels 20 one by one in the vertical direction, a first avoidance area 142 connected to the bottom of the loading stacking area 141, a second avoidance area 143 connected to the top of the loading stacking area 141, and a fifth avoidance area (not shown in the figure) connected to the side of the loading stacking area 141, so that the culture vessels 20 can be loaded into the loading stacking area 141 from the second avoidance area 143 or the fifth avoidance area, or removed from the loading stacking area 141 from the second avoidance area 143 or the fifth avoidance area, and when the loading drive assembly 120 drives the loading turntable 110 to rotate, each loading bracket body 144 circulates and moves to the first workstation one by one.

[0033] Specifically, in this embodiment, the above-mentioned feeding drive assembly 120 includes a feeding drive motor 121, a feeding transmission unit 122 and a feeding reduction unit 123, wherein the feeding drive motor 121 and the feeding reduction unit 123 are both arranged on the system bracket 900, and the feeding drive motor 121 is connected to the feeding reduction unit 123 through the feeding transmission unit 122, and the feeding reduction unit 123 is connected to the feeding turntable 110 for rotation; it can be understood that the role of the above-mentioned feeding reduction unit 123 is to increase the output torque of the feeding drive motor 121, thereby improving the load capacity of the feeding drive motor 121 without increasing the output power of the feeding drive motor 121.

[0034] More specifically, in this embodiment, the above-mentioned feeding transmission unit 122 includes a feeding transmission shaft 1221, a first feeding transmission gear 1222, a second feeding transmission gear 1223, a feeding transmission belt 1224 and a feeding coupling 1225, wherein the feeding transmission shaft 1221 is rotatably connected to the system bracket 900, the first feeding transmission gear 1222 and the second feeding transmission gear 1223 are respectively mounted on the feeding drive motor 121 and the feeding transmission shaft 1221, the feeding transmission belt 1224 is transmission-wound around the first feeding transmission gear 1222 and the second feeding transmission gear 1223, and the feeding transmission shaft 1221 is transmission-connected to the feeding deceleration unit 123 through the feeding coupling 1225.

[0035] Furthermore, in this embodiment, the above-mentioned loading and pushing assembly 130 includes a loading and pushing driving guide rail 131, a loading and pushing driving cylinder 132 and a loading and pushing unit 133, wherein the loading and pushing driving guide rail 131 is arranged on the system bracket 900 and is horizontally connected to the loading and pushing driving cylinder 132, the loading and pushing driving cylinder 132 is vertically connected to the loading and pushing unit 133, and the loading and pushing unit 133 and the first avoidance area 142 of each loading bracket main body 144 are both located below the loading turntable 110.

[0036] It should be noted that, in the present embodiment, when any of the above-mentioned loading support bodies 144 is located at the first station and the loading pushing unit 133 is located at the second station, the loading pushing unit 133 is spaced in the horizontal direction relative to a culture vessel 20 at the bottom of the loading stacking area 141 in the corresponding loading support body 144, and the loading pushing driving guide rail 131 is used to drive the loading pushing unit 133 located at the second station in the horizontal direction through the first avoidance area 142 into the loading stacking area 141 to push the corresponding culture vessel 20 until the loading pushing unit 133 and the corresponding culture vessel 20 leave the upper When the material stacking area 141 and the loading and pushing unit 133 are located at the third station, a corresponding culture vessel 20 is randomly located in the working area 800, and the loading and pushing driving cylinder 132 is used to vertically descend the loading and pushing unit 133 located at the third station, but the loading and pushing unit 133 avoids the loading bracket body 144 located at the first station in the horizontal direction, and after the loading and pushing driving guide rail 131 retracts the loading and pushing unit 133 to an appropriate position in the horizontal direction, the loading and pushing driving cylinder 132 raises the loading and pushing unit 133 in the vertical direction again so that the loading and pushing unit 133 is reset to the second station.

[0037] Furthermore, in this embodiment, the above-mentioned feeding device 100 also includes a feeding platen driving guide rail 151, a feeding platen connecting piece 152 and a feeding platen assembly 153, wherein the feeding platen driving guide rail 151 is arranged on the system bracket 900 and is connected to the feeding platen connecting piece 152 in a vertical direction, the feeding platen assembly 153 is elastically connected to the feeding platen connecting piece 152 in a vertical direction and is suspended above the feeding bracket body 144 located at the first station, and the feeding platen assembly 153 passes through the second avoidance area 143 is connected to the top of the loading and stacking area 141. In this way, when the loading and pushing unit 133 pushes the culture vessels 20 at the bottom of the loading and stacking area 141 one by one, the loading pressure plate driving guide rail 151 drives the loading pressure plate assembly 153 to enter the top of the loading and stacking area 141 from the second avoidance area 143 in the vertical direction, and then elastically presses down the culture vessels 20 located at the top of the loading and stacking area 141, so that the remaining culture vessels 20 except the pushed culture vessels 20 can be firmly fixed in the loading and stacking area 141.

[0038] See also Figure 7In this embodiment, the above-mentioned loading pressure plate assembly 153 includes a first connecting shaft 1531, a first limiting gasket 1532, a first buffer spring 1533 and a first pressure plate body 1534, wherein the first connecting shaft 1531 is movably arranged on the loading pressure plate connecting piece 152 in the vertical direction, the first connecting shaft 1531 is fixedly connected to the first pressure plate body 1534 at one end facing the loading bracket body 144, and the first connecting shaft 1531 is fixedly connected to the first limiting gasket 1532 at one end facing away from the loading bracket body 144. The first limiting gasket 1532 is used to limit the abutment against the loading pressure plate connection. The connecting piece 152 is facing away from the side of the first pressure plate body 1534, and the first buffer spring 1533 is coaxially sleeved on the first connecting shaft 1531, and the opposite ends of the first buffer spring 1533 elastically abut against some of the loading pressure plate connecting piece 152 facing the first pressure plate body 1534, and the side of the first pressure plate body 1534 facing the loading pressure plate connecting piece 152; it can be understood that the first buffer spring 1533 is used to provide a buffering effect when the first pressure plate body 1534 presses down the culture vessel 20, thereby avoiding damage to the culture vessel 20 and related components in the loading pressure plate assembly 153.

[0039] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A loading device for transporting culture vessels to an operating area, characterized in that: The utility model comprises a loading turntable, a loading drive assembly, a loading pushing assembly and a plurality of loading stacking brackets, wherein the loading turntable is provided with a plurality of loading fixing through holes equidistantly arranged along its circumference, and each of the loading stacking brackets is correspondingly penetrated and fixed on each of the loading fixing through holes, and the loading stacking bracket has a loading stacking area for stacking and accommodating the culture vessels one by one in a vertical direction, and a first avoidance area connected to the bottom of the loading stacking area, and the loading drive assembly is transmission-connected to the self-rotation of the loading turntable, so that each of the loading stacking brackets is cyclically moved to the first station one by one during the self-rotation of the loading turntable; When any of the loading and stacking brackets is located on the first workstation, the loading and stacking area in the corresponding loading and stacking bracket is adjacently connected to the working area through the first avoidance area in the horizontal direction, and the loading and pushing assembly is used to enter the loading and stacking area through the first avoidance area, and push the culture vessels located at the bottom of the loading and stacking area one by one in the horizontal direction through the first avoidance area to enter the working area.

2. The feeding device according to claim 1, characterized in that: The loading and stacking bracket includes a loading bracket body and a loading bracket supporting ring, the loading bracket supporting ring is fixed on the outer periphery of the loading bracket body, the loading bracket body is penetrated through the loading fixing through hole, the loading bracket supporting ring is supported on the edge of the corresponding loading fixing through hole, the loading bracket body has the loading and stacking area for stacking the culture vessels one by one in the vertical direction, and the first avoidance area connected to the bottom of the loading and stacking area, and each of the loading bracket bodies moves cyclically to the first station one by one during the rotation of the loading turntable.

3. The feeding device according to claim 2, characterized in that: The loading and pushing assembly includes a loading and pushing driving guide rail, a loading and pushing driving cylinder and a loading and pushing unit, the loading and pushing driving guide rail is horizontally connected to the loading and pushing driving cylinder, the loading and pushing driving cylinder is vertically connected to the loading and pushing unit, and the first avoidance area of ​​the loading and pushing unit and each of the loading bracket bodies are located below the loading turntable; When any of the loading bracket bodies is located at the first station and the loading pushing unit is located at the second station, the loading pushing unit is horizontally spaced relative to a culture vessel at the bottom of the loading stacking area in the corresponding loading bracket body, and the loading pushing driving guide rail is used to drive the loading pushing unit located at the second station horizontally through the first avoidance area into the loading stacking area to push the corresponding culture vessel until the loading pushing unit and the corresponding culture vessel leave through the first avoidance area. The loading and stacking area, and when the loading and pushing unit is located at the third station, the corresponding culture vessel is immediately located in the working area, and the loading and pushing driving cylinder is used to vertically descend the loading and pushing unit located at the third station until the loading and pushing unit avoids the loading bracket body located at the first station in the horizontal direction, and after the loading and pushing driving guide rail retracts the loading and pushing unit to an appropriate position in the horizontal direction, the loading and pushing driving cylinder then vertically raises the loading and pushing unit to the second station.

4. The feeding device according to claim 3, characterized in that: The feeding device also includes a feeding pressure plate driving guide rail, a feeding pressure plate connecting piece and a feeding pressure plate assembly. The feeding pressure plate driving guide rail is connected to the feeding pressure plate connecting piece in a vertical direction. The feeding pressure plate assembly is elastically connected to the feeding pressure plate connecting piece in a vertical direction and is suspended above the feeding bracket body located at the first workstation. The feeding bracket body has a second avoidance area which is connected to the top of the feeding stacking area and avoids the feeding pressure plate assembly in a vertical direction.

5. The feeding device according to claim 4, characterized in that: The loading platen assembly includes a first connecting shaft, a first limiting washer, a first buffer spring and a first pressure plate body. The first connecting shaft is movably arranged on the loading platen connecting piece in a vertical direction. The first connecting shaft is fixedly connected to the first pressure plate body at one end facing the loading bracket body. The first connecting shaft is fixedly connected to the first limiting washer at one end facing away from the loading bracket body. The first limiting washer is used to limit and abut the side of the loading platen connecting piece facing away from the first pressure plate body. The first buffer spring is coaxially sleeved on the first connecting shaft, and the opposite ends of the first buffer spring are respectively elastically abutted against the side of the loading platen connecting piece facing the first pressure plate body, and the side of the first pressure plate body facing the loading platen connecting piece.

6. The feeding device according to claim 1, characterized in that: The feeding drive assembly includes a feeding drive motor, a feeding transmission unit and a feeding reduction unit. The feeding drive motor is connected to the feeding reduction unit through the feeding transmission unit, and the feeding reduction unit is connected to the feeding turntable for rotation.

7. The feeding device according to claim 6, characterized in that: The feeding transmission unit includes a feeding transmission shaft, a first feeding transmission gear, a second feeding transmission gear, a feeding transmission belt and a feeding coupling. The first feeding transmission gear and the second feeding transmission gear are respectively mounted on the feeding drive motor and the feeding transmission shaft. The feeding transmission belt is wound around the first feeding transmission gear and the second feeding transmission gear. The feeding transmission shaft is connected to the feeding deceleration unit through the feeding coupling.

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