Feeding device with middle feeding function

Abstract

A feeding device achieving middle feeding comprises a first frame body, a first moving frame, a second moving frame, a first lifting rod, a second lifting rod, a first adsorption assembly, a second adsorption assembly, a two-way conveying assembly, a first driving device, a second driving device, a third driving device and a fourth driving device. The first moving frame and the second moving frame are movably mounted on the first frame body, the first driving device is used for driving the first moving frame to move front and back, and the second driving device is used for driving the second moving frame to move front and back; the first lifting rod is movably installed on the first moving frame, the first lifting rod is provided with two first adsorption assemblies, and the third driving device is used for driving the first lifting rod to move up and down. According to the content, the feeding device with the middle feeding function solves the problems that in the prior art, the feeding efficiency is low, the requirement for the site of a client is high, and limitation is large in the mode that materials are conveyed and fed from the end of a conveying assembly in sequence.

Description

Technical Field

[0001] The utility model relates to the technical field of daily-use ceramic feeding, in particular to a feeding device with intermediate feeding. Background Art

[0002] In the production process of daily-use ceramics, it is usually necessary to perform secondary drying on ceramic workpieces. At this time, a feeding device needs to be used for transfer. Specifically, the ceramic workpieces are sequentially fed from the end of the conveying component of the feeding device. After multiple ceramic workpieces are placed on the conveying component, the adsorption component is used to suck and convey multiple ceramic workpieces on the conveying component to the subsequent process for secondary drying at one time. However, the method of sequentially feeding from the end of the conveying component not only has low feeding efficiency, but also has high requirements for the customer's site and large limitations. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a feeding device with intermediate feeding, which solves the problems in the prior art that the method of sequentially feeding from the end of the conveying component not only has low feeding efficiency, but also has high requirements for the customer's site and large limitations.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A feeding device with intermediate feeding includes a first frame, a first moving frame, a second moving frame, a first lifting rod, a second lifting rod, a first adsorption component, a second adsorption component, a two-way conveying component, a first driving device, a second driving device, a third driving device, and a fourth driving device;

[0006] The first moving frame and the second moving frame are respectively movably installed on the first frame. The first driving device is used to drive the first moving frame to move back and forth, and the second driving device is used to drive the second moving frame to move back and forth;

[0007] The first lifting rod is movably installed on the first moving frame. Two first adsorption components are installed on the first lifting rod. The third driving device is used to drive the first lifting rod to move up and down;

[0008] The second lifting rod is movably installed on the second moving frame. A plurality of second adsorption components are installed on the second lifting rod. The plurality of second adsorption components are evenly spaced along the length direction of the second lifting rod. The fourth driving device is used to drive the second lifting rod to move up and down;

[0009] The two-way conveying component is arranged inside the first frame, and the two-way conveying component is located below the first adsorption component and the second adsorption component. The two-way conveying component is used to convey multiple workpieces to the left and right sides respectively.

[0010] Furthermore, the bidirectional conveying assembly includes a first driven roller, a second driven roller, a first driving roller, a second driving roller, a fifth driving device, a sixth driving device, a second frame body, a first conveyor belt and a second conveyor belt;

[0011] The first driven roller and the second driven roller are respectively rotatably installed in the middle of the second frame body. The first driven roller is located on the left side of the second driven roller. The first driving roller and the second driving roller are respectively rotatably installed at the left and right ends of the second frame body. The first driving roller is located on the left side of the first driven roller, and the second driving roller is located on the right side of the second driven roller;

[0012] The fifth driving device is used to drive the first driving roller to rotate, the sixth driving device is used to drive the second driving roller to rotate. The two ends of the first conveyor belt are respectively installed on the first driving roller and the first driven roller, and the two ends of the second conveyor belt are respectively installed on the second driving roller and the second driven roller. The conveying directions of the second conveyor belt and the first conveyor belt are opposite.

[0013] Specifically, guide rails are respectively provided at the left and right ends of the first frame body. First sliders are respectively provided at the left and right ends of the first moving frame. The first sliders are slidably installed on the guide rails. Second sliders are respectively provided at the left and right ends of the second moving frame. The second sliders are slidably installed on the guide rails.

[0014] Preferably, the first frame body is provided with a first toothed rail. The first driving device is installed on the first moving frame. A first gear is provided at the output end of the first driving device. The first gear meshes with the first toothed rail.

[0015] The second driving device is installed on the second moving frame. A second gear is provided at the output end of the second driving device. The second gear meshes with the first toothed rail.

[0016] In some embodiments, the third driving device includes a third driving part, a first guide rod and a third gear;

[0017] The first guide rod is vertically movably installed on the first moving frame. A second toothed rail is provided at one end of the first guide rod. The other end of the first guide rod is connected to the first lifting rod;

[0018] The third driving part is installed on the first moving frame. The third gears are respectively installed at the two output ends of the third driving part. The third gears mesh with the second toothed rail.

[0019] Furthermore, the fourth driving device includes a fourth driving part and a second guide rod;

[0020] The fourth driving part is installed on the second moving frame, the output end of the fourth driving part is connected to the second lifting rod, one end of the second guide rod is movably installed on the second moving frame in the up-and-down direction, and the other end of the second guide rod is connected to the second lifting rod.

[0021] Specifically, the first adsorption assembly includes a first mounting plate, a first sleeve, a first negative pressure rod, and a first suction cup;

[0022] One end of the first mounting plate is installed on the first lifting rod, the first sleeve is installed on the other end of the first mounting plate, one end of the first negative pressure rod is installed in the first sleeve, and the first suction cup is installed at the other end of the first negative pressure rod.

[0023] Preferably, the first adsorption assembly further includes a first blocking member, a second blocking member, and a first elastic member;

[0024] The first negative pressure rod is movably installed inside the first sleeve in the up-and-down direction. A first blocking member is installed at one end of the first negative pressure rod, and the first blocking member can abut against the top of the first sleeve;

[0025] The second blocking member is installed at the other end of the first negative pressure rod. The second blocking member is located between the first sleeve and the first suction cup. The first elastic member is installed on the outer periphery of the first negative pressure rod. One end of the first elastic member abuts against the bottom of the first sleeve, and the other end of the first elastic member abuts against the second blocking member.

[0026] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0027] Through the first frame body, the first moving frame, the second moving frame, the first lifting rod, the second lifting rod, the first adsorption assembly, the second adsorption assembly, the two-way conveying assembly, the first driving device, the second driving device, the third driving device, and the fourth driving device, workpieces can be loaded from the front side of the two-way conveying assembly, and the two workpieces are respectively conveyed to the left and right sides. Compared with the traditional method of loading workpieces from one end of the conveying assembly to the other end, it not only greatly saves the loading time and is beneficial to improving the loading efficiency, but also can avoid the phenomenon that workpieces cannot be loaded from the end of the conveying assembly due to the limitations of the customer's site. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of a loading device according to one embodiment of the present invention;

[0029] Figure 2 is Figure 1 an enlarged view of part A in

[0030] Figure 3 is Figure 1 an enlarged view of part B of

[0031] Figure 4 a schematic structural view of a two-way conveying assembly according to one embodiment of the present utility model;

[0032] Figure 5 a schematic structural view of a third driving device according to one embodiment of the present utility model;

[0033] Figure 6 a schematic structural view of a first adsorption assembly according to one embodiment of the present utility model;

[0034] Figure 7 a schematic structural view of a fourth driving device according to one embodiment of the present utility model;

[0035] Wherein: the first frame 1, the guide rail 11, the first toothed rail 12, the first moving frame 2, the first slider 21, the second moving frame 3, the second slider 31, the first lifting rod 4, the second lifting rod 5, the first adsorption assembly 6, the first mounting plate 61, the first sleeve 62, the first negative pressure rod 63, the first blocking member 64, the second blocking member 65, the first elastic member 66, the second adsorption assembly 7, the two-way conveying assembly 8, the first driven roller 81, the second driven roller 82, the first driving roller 83, the second driving roller 84, the fifth driving device 85, the sixth driving device 86, the second frame 87, the first driving device 91, the first gear 911, the second driving device 92, the second gear 921, the third driving device 93, the third driving part 931, the first guide rod 932, the third gear 933, the second toothed rail 934, the fourth driving device 94, the fourth driving part 941, the second guide rod 942. Detailed Embodiment

[0036] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "inner side", "outer side", "inner end", "outer end", "axial direction", "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model. In addition, features defined with "first", "second" may explicitly or implicitly include one or more of such features, which are used to distinguish and describe features, without order or importance. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is more than two.

[0038] In an embodiment of the present utility model, such as Figures 1-7As shown in the figure, a feeding device with intermediate feeding includes a first frame 1, a first moving frame 2, a second moving frame 3, a first lifting rod 4, a second lifting rod 5, a first adsorption component 6, a second adsorption component 7, a two-way conveying component 8, a first driving device 91, a second driving device 92, a third driving device 93 and a fourth driving device 94; the first moving frame 2 and the second moving frame 3 are respectively movably installed on the first frame 1, the first driving device 91 is used to drive the first moving frame 2 to move back and forth, and the second driving device 92 is used to drive the second moving frame 3 to move back and forth; the first lifting rod 4 is movably installed on the first moving frame 2, two of the first adsorption components 6 are installed on the first lifting rod 4, and the third driving device 93 is used to drive the first lifting rod 4 to move up and down; the second lifting rod 5 is movably installed on the second moving frame 3, a plurality of the second adsorption components 7 are installed on the second lifting rod 5, and the plurality of the second adsorption components 7 are evenly spaced along the length direction of the second lifting rod 5, and the fourth driving device 94 is used to drive the second lifting rod 5 to move up and down; the two-way conveying component 8 is arranged inside the first frame 1, and the two-way conveying component 8 is located below the first adsorption component 6 and the second adsorption component 7, and the two-way conveying component 8 is used to convey a plurality of workpieces to the left and right sides respectively.In this embodiment, the first moving frame 2 is located on the front side of the second moving frame 3. The number of the second adsorption components 7 is eight, and the eight second adsorption components 7 are respectively and evenly installed on the second lifting rod 5. The second lifting rod 5 and the first lifting rod 4 are arranged in the horizontal direction. The first adsorption component 6 and the second adsorption component 7 have the same structure. The first adsorption component 6 and the second adsorption component 7 are respectively connected to an external negative pressure device to provide negative pressure for the first adsorption component 6 and the second adsorption component 7. During operation, after the previous process conveys two workpieces side by side to the designated position, the first driving device 91 drives the first moving frame 2 to move forward, so that the adsorption ends of the two first adsorption components 6 face the adsorption positions of the two workpieces. Then the third driving device 93 drives the first lifting rod 4 to move downward, so that the two first adsorption components 6 move downward until they abut against the two workpieces. After the two first adsorption components 6 firmly suck the two workpieces, the third driving device 93 drives the first lifting rod 4 to move upward to reset. The first driving device 91 drives the first moving frame 2 to move backward, so that the two workpieces can face the middle of the bidirectional conveying component 8. Then the third driving device 93 drives the first lifting rod 4 to descend until the two workpieces are placed on both sides of the middle of the bidirectional conveying component 8. Then the bidirectional conveying component 8 starts to work. The bidirectional conveying component 8 conveys the workpiece on the left side to the left by a set distance, and conveys the workpiece on the right side to the right by a set distance. After cycling four times, there are eight workpieces placed on the bidirectional conveying component 8, and the eight workpieces are evenly spaced along the length direction of the bidirectional conveying component 8. Then the second driving device 92 drives the second moving frame 3 to move back and forth, and the fourth driving device drives the second lifting rod 5 to move up and down, so that the eight second adsorption components 7 suck the eight workpieces from the top surface of the bidirectional conveying component 8 and convey them to the subsequent process for secondary drying. Through the first frame body 1, the first moving frame 2, the second moving frame 3, the first lifting rod 4, the second lifting rod 5, the first adsorption component 6, the second adsorption component 7, the bidirectional conveying component 8, the first driving device 91, the second driving device 92, the third driving device 93 and the fourth driving device 94, the workpiece can be loaded from the front side of the bidirectional conveying component 8, and the two workpieces are respectively conveyed to the left and right sides. Compared with the traditional method of loading workpieces from one end of the conveying component to the other end of the conveying component, not only the loading time is greatly saved, which is beneficial to improving the loading efficiency, but also the phenomenon that the workpiece cannot be loaded from the end of the conveying component due to the limitation of the customer's site can be avoided.

[0039] As Figure 4As shown, the two-way conveying assembly 8 includes a first driven roller 81, a second driven roller 82, a first driving roller 83, a second driving roller 84, a fifth driving device 85, a sixth driving device 86, a second frame 87, a first conveyor belt and a second conveyor belt; the first driven roller 81 and the second driven roller 82 are respectively rotatably installed in the middle of the second frame 87, the first driven roller 81 is located on the left side of the second driven roller 82, the first driving roller 83 and the second driving roller 84 are respectively rotatably installed at the left and right ends of the second frame 87, the first driving roller 83 is located on the left side of the first driven roller 81, and the second driving roller 84 is located on the right side of the second driven roller 82; the fifth driving device 82 is used to drive the first driving roller 83 to rotate, the sixth driving device 86 is used to drive the second driving roller 84 to rotate, both ends of the first conveyor belt are respectively installed on the first driving roller 83 and the first driven roller 81, both ends of the second conveyor belt are respectively installed on the second driving roller 84 and the second driven roller 82, and the conveying directions of the second conveyor belt and the first conveyor belt are opposite. In this embodiment, the fifth driving device 85 and the sixth driving device 86 are respectively installed on the second frame 87, the fifth driving device 85 and the sixth driving device 86 have the same structure and are both motor pulley drive structures. Pulley wheels are respectively installed at the ends of the first driving roller 83, the second driving roller 84 and the motor, and the pulley wheel of the motor is connected to the pulley wheel of the driving roller through a transmission belt to achieve driving. During operation, two workpieces are respectively placed on the top surfaces of the first conveyor belt and the second conveyor belt, and then the fifth driving device 85 and the sixth driving device 86 respectively drive the first driving roller 83 and the second driving roller 84 to rotate, so that the first conveyor belt conveys the workpiece a set distance to the left, and the second conveyor belt conveys the workpiece a set distance to the right. After four cycles of loading, four workpieces are respectively placed on the top surfaces of the first conveyor belt and the second conveyor belt, which facilitates subsequent simultaneous adsorption of eight workpieces by eight second adsorption components 7 and is conducive to improving the transfer efficiency.

[0040] As Figures 1-3As shown, guide rails 11 are respectively provided at the left and right ends of the first frame body 1. First sliders 21 are respectively provided at the left and right ends of the first moving frame 2. The first sliders 21 are slidably mounted on the guide rails 11. Second sliders 31 are respectively provided at the left and right ends of the second moving frame 3. The second sliders 31 are slidably mounted on the guide rails 11. In this embodiment, the number of the guide rails 11, the first sliders 21 and the second sliders 31 is two respectively. The two first sliders 21 are respectively mounted at the bottoms of the left and right ends of the first moving frame 2. The two second sliders 31 are respectively mounted at the bottoms of the left and right ends of the second moving frame 3. The two guide rails 11 are respectively mounted at the tops of the left and right ends of the first frame body 1. When the first moving frame 2 and the second moving frame 3 move back and forth, specifically, the first sliders 21 and the second sliders 31 move back and forth along the length direction of the guide rails 11, which is beneficial to improving the moving smoothness of the first moving frame 2 and the second moving frame 3 and ensuring the accuracy of their movements.

[0041] As Figures 1-3 shown, the first frame body 1 is provided with a first toothed rail 12. The first driving device 91 is mounted on the first moving frame 2. A first gear 911 is provided at the output end of the first driving device 91. The first gear 911 meshes with the first toothed rail 12. The second driving device 92 is mounted on the second moving frame 3. A second gear 921 is provided at the output end of the second driving device 92. The second gear 921 meshes with the first toothed rail 12. In this embodiment, both the first driving device 91 and the second driving device 92 are motors. During operation, the first driving device 91 drives the first gear 911 at its output end to rotate, causing the first gear 911 to move back and forth along the length direction of the first toothed rail 12. The second driving device 92 drives the second gear 921 at its output end to rotate, causing the second gear 921 to move back and forth along the length direction of the first toothed rail 12, thereby enabling the first moving frame 2 and the second moving frame 3 to move back and forth, which is convenient, fast and has high transmission efficiency.

[0042] As Figure 5As shown, the third driving device 93 includes a third driving part 931, a first guide rod 932 and a third gear 933; the first guide rod 932 is movably installed up and down on the first moving frame 2, one end of the first guide rod 932 is provided with a second tooth track 934, and the other end of the first guide rod 932 is connected to the first lifting rod 4; the third driving part 931 is installed on the first moving frame 2, and the third gears 933 are respectively installed at two output ends of the third driving part 931, and the third gears 933 are engaged with the second tooth track 934. In this embodiment, the number of the first guide rods 932 is two, the third driving part 931 is a biaxial motor, and the third gears 933 are respectively installed at two ends of the output shaft of the third driving part 931. During operation, the third driving part 931 drives the two third gears 933 to rotate, and the two third gears 933 move the two first guide rods 932 up and down through the second tooth track 934, so that the first guide rod 4 drives the first adsorption assembly 6 to move up and down, which is convenient and fast. The two first guide rods 932 play a guiding role to prevent the first adsorption assembly 6 from moving offset.

[0043] As Figure 7 shown, the fourth driving device 94 includes a fourth driving part 941 and a second guide rod 942; the fourth driving part 941 is installed on the second moving frame 3, the output end of the fourth driving part 941 is connected to the second lifting rod 5, one end of the second guide rod 942 is movably installed up and down on the second moving frame 3, and the other end of the second guide rod 942 is connected to the second lifting rod 5. In this embodiment, the fourth driving part 941 is a cylinder, the output shaft of the fourth driving part 941 passes through the second moving frame 3 and is connected to the second lifting rod 5. During operation, the output shaft of the fourth driving part 941 expands and contracts, so as to drive the second lifting rod 5 to move up and down. The second guide rod 942 plays a guiding role to prevent the second adsorption assembly 7 from moving offset.

[0044] As Figure 6As shown, the first adsorption assembly 6 includes a first mounting plate 61, a first sleeve 62, a first negative pressure rod 63 and a first suction cup; one end of the first mounting plate 61 is mounted on the first lifting rod 4, the first sleeve 62 is mounted on the other end of the first mounting plate 61, one end of the first negative pressure rod 63 is mounted on the first sleeve 62, and the first suction cup is mounted on the other end of the first negative pressure rod 63. In this embodiment, one end of the first mounting plate 61 is mounted on the bottom surface of the first lifting rod 4, the first sleeve 62 is mounted on the other end of the first mounting plate 61, the first negative pressure rod 63 is mounted on the first sleeve 62, the top of the first negative pressure rod 63 protrudes from the top surface of the first sleeve 62, and the top of the first negative pressure rod 63 is communicated with an external negative pressure device. The first suction cup is mounted at the bottom of the first negative pressure rod 63, and the first suction cup is communicated with the external negative pressure device through the first negative pressure rod 63. During operation, the external negative pressure device provides negative pressure for the first suction cup to firmly suck the workpiece, which is convenient and fast.

[0045] As Figure 6 shown, the first adsorption assembly 6 further includes a first blocking member 64, a second blocking member 65 and a first elastic member 66; the first negative pressure rod 63 is movably mounted up and down inside the first sleeve 62, a first blocking member 64 is mounted at one end of the first negative pressure rod 63, and the first blocking member 64 can abut against the top of the first sleeve 62; the second blocking member 65 is mounted at the other end of the first negative pressure rod 63, the second blocking member 65 is located between the first sleeve 62 and the first suction cup, the first elastic member 66 is mounted on the outer periphery of the first negative pressure rod 63, one end of the first elastic member 66 abuts against the bottom of the first sleeve 62, and the other end of the first elastic member 66 abuts against the second blocking member 65. In this embodiment, when the first suction cup abuts against the workpiece, under the action of the reaction force, the first negative pressure rod 63 will slide upward inside the first sleeve 62, and the first elastic member 66 is in a compressed state at this time. The first elastic member 66 is a spring. After the first suction cup is not stressed, under the elastic force of the first elastic member 66, the first negative pressure rod 63 slides downward to reset until the bottom surface of the first blocking member 64 abuts against the top surface of the first sleeve 62. Through the above design, the first elastic member 66 can play a buffering role to prevent the first suction cup from colliding rigidly with the workpiece and deforming.

[0046] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0047] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A feeding device for intermediate feeding, characterized in that: It includes a first frame, a first mobile frame, a second mobile frame, a first lifting rod, a second lifting rod, a first adsorption assembly, a second adsorption assembly, a two-way conveying assembly, a first driving device, a second driving device, a third driving device and a fourth driving device; The first mobile frame and the second mobile frame are movably mounted on the first frame body respectively, the first driving device is used to drive the first mobile frame to move forward and backward, and the second driving device is used to drive the second mobile frame to move forward and backward; The first lifting rod is movably mounted on the first moving frame, the first lifting rod is mounted with two first adsorption components, and the third driving device is used to drive the first lifting rod to move up and down; The second lifting rod is movably mounted on the second moving frame, the second lifting rod is mounted with a plurality of the second adsorption components, the plurality of the second adsorption components are evenly spaced along the length direction of the second lifting rod, and the fourth driving device is used to drive the second lifting rod to move up and down; The bidirectional conveying assembly is arranged inside the first frame, and the bidirectional conveying assembly is located below the first adsorption assembly and the second adsorption assembly, and the bidirectional conveying assembly is used to convey a plurality of workpieces to the left and right sides respectively.

2. The intermediate feeding device according to claim 1, characterized in that: The bidirectional conveying assembly includes a first driven roller, a second driven roller, a first active roller, a second active roller, a fifth driving device, a sixth driving device, a second frame, a first conveying belt and a second conveying belt; The first driven roller and the second driven roller are rotatably mounted on the middle part of the second frame, the first driven roller is located on the left side of the second driven roller, the first active roller and the second active roller are rotatably mounted on the left and right ends of the second frame, the first active roller is located on the left side of the first driven roller, and the second active roller is located on the right side of the second driven roller; The fifth driving device is used to drive the first active roller to rotate, and the sixth driving device is used to drive the second active roller to rotate. The two ends of the first conveyor belt are respectively installed on the first active roller and the first driven roller, and the two ends of the second conveyor belt are respectively installed on the second active roller and the second driven roller. The conveying directions of the second conveyor belt and the first conveyor belt are opposite.

3. The intermediate feeding device according to claim 1, characterized in that: The left and right ends of the first frame are respectively provided with guide rails, the left and right ends of the first movable frame are respectively provided with first sliders, the first sliders are slidably installed on the guide rails, and the left and right ends of the second movable frame are respectively provided with second sliders, the second sliders are slidably installed on the guide rails.

4. The intermediate feeding device according to claim 3 is characterized in that: The first frame is provided with a first rack, the first driving device is installed on the first moving frame, the output end of the first driving device is provided with a first gear, and the first gear is meshed with the first rack; The second driving device is installed on the second moving frame. The output end of the second driving device is provided with a second gear, and the second gear is meshed with the first rack.

5. The intermediate feeding device according to claim 1, characterized in that: The third driving device comprises a third driving part, a first guide rod and a third gear; The first guide rod is installed on the first moving frame so as to be movable up and down, a second rack is provided at one end of the first guide rod, and the other end of the first guide rod is connected to the first lifting rod; The third driving part is installed on the first moving frame, and the two output ends of the third driving part are respectively installed with the third gears, and the third gears are meshed with the second rack.

6. The intermediate feeding device according to claim 1, characterized in that: The fourth driving device comprises a fourth driving part and a second guide rod; The fourth driving part is installed on the second moving frame, the output end of the fourth driving part is connected to the second lifting rod, one end of the second guide rod is installed on the second moving frame movably, and the other end of the second guide rod is connected to the second lifting rod.

7. The intermediate feeding device according to claim 1, characterized in that: The first adsorption assembly includes a first mounting plate, a first sleeve, a first negative pressure rod and a first suction cup; One end of the first mounting plate is mounted on the first lifting rod, the first sleeve is mounted on the other end of the first mounting plate, one end of the first negative pressure rod is mounted on the first sleeve, and the first suction cup is mounted on the other end of the first negative pressure rod.

8. The intermediate feeding device according to claim 7, characterized in that: The first adsorption assembly further includes a first blocking member, a second blocking member and a first elastic member; The first negative pressure rod is installed inside the first sleeve and can move up and down. The first blocking member is installed at one end of the first negative pressure rod, and the first blocking member can abut against the top of the first sleeve. The second blocking member is installed at the other end of the first negative pressure rod, the second blocking member is located between the first sleeve and the first suction cup, the first elastic member is installed at the outer periphery of the first negative pressure rod, one end of the first elastic member abuts against the bottom of the first sleeve, and the other end of the first elastic member abuts against the second blocking member.

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