A tray arranging and feeding work station and arranging process

Abstract

The application discloses a tray arranging and feeding workstation and an arranging process, and the workstation comprises a roller conveying line arranged at the front end; a tray jacking mechanism is arranged at the rear end of the roller conveying line; a tray conveying belt is arranged above the tray jacking mechanism; a tray arranging and feeding mechanism is arranged at the tail end of the tray conveying belt; a tray car top rotating mechanism and a tray car bottom fixing mechanism are arranged at the side of the tray arranging and feeding mechanism. The use of the workstation can realize automatic weighing and tray feeding of the freeze-dried food, and the production efficiency is improved and the labor cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of food processing equipment, specifically relating to a tray sorting and feeding workstation and sorting process. Background Technology

[0002] Currently, in the freeze-dried food processing industry, food cutting is done manually. Diced or sliced ​​food is loaded into trays and weighed manually. The weighed trays then need to be manually loaded onto freeze-drying carts. These workstations require a large number of workers, and the carts handle large quantities and heavy loads. Production runs 24 hours a day, placing significant demands on the physical strength of the workers loading the trays. In existing solutions, the tray loading, weighing, and loading areas are entirely manual, divided into 2-3 shifts per day. This is labor-intensive, and the workforce is aging significantly. Summary of the Invention

[0003] This invention provides a tray sorting and feeding workstation and sorting process. The use of this workstation can realize the automatic weighing and tray loading of freeze-dried food into a cart, thereby improving production efficiency and reducing labor costs.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a material tray sorting and feeding workstation, the workstation including a roller conveyor line at the front end; a material tray lifting mechanism at the rear end of the roller conveyor line; a material tray conveyor belt above the material tray lifting mechanism; a material tray sorting and feeding mechanism at the end of the material tray conveyor belt; and a material cart top rotating mechanism and a material cart bottom fixing mechanism on the side of the material tray sorting and feeding mechanism.

[0005] Preferably, a lifting belt conveyor is provided on the side of the roller conveyor; a telescopic fabric conveyor is provided at the rear end of the lifting belt conveyor; a weighing conveyor is provided at the rear end of the telescopic fabric conveyor; and the weighing conveyor is located inside the roller conveyor.

[0006] Preferably, the roller conveyor line is also equipped with a tilting mechanism.

[0007] Preferably, the material tray lifting mechanism includes a lifting main frame body disposed at the bottom; a lifting part is disposed inside the lifting main frame body; a roller guard is disposed on the upper part of the lifting part; a roller is disposed on the inner side of the roller guard; the roller is driven to rotate by a roller motor; and a blocking cylinder is disposed at the end of the material tray lifting mechanism.

[0008] Preferably, the lifting section includes a vertically arranged lifting sub-frame; a material tray lifting cylinder is arranged inside the lifting sub-frame; a synchronous pulley is connected upward to the material tray lifting cylinder; a synchronous belt is arranged on the synchronous pulley; a lifting frame is connected to one side of the synchronous belt; a central guide rail is arranged on the synchronous pulley; side guide rails are arranged on both sides of the lifting sub-frame; and sliders corresponding to the central guide rail and side guide rails are arranged inside the lifting frame.

[0009] Preferably, the material tray conveyor belt includes a support frame at the bottom; a corner conveyor line is provided on the upper part of the support frame; the corner conveyor line includes a conveyor belt frame at the bottom; a conveyor belt is provided on the upper part of the conveyor belt frame; a rotating synchronous belt is provided at the front end of the conveyor belt; the rotating synchronous belt is rotated by a synchronous belt rotating cylinder.

[0010] Preferably, the material tray sorting and feeding mechanism includes a feeding mechanism bottom frame set at the bottom; a feeding mechanism transverse frame that can slide along the upper part of the feeding mechanism bottom frame; and a feeding mechanism lifting frame set on one side of the feeding mechanism transverse frame.

[0011] Preferably, the bottom frame of the feeding mechanism includes a bottom frame; two parallel bottom roller tracks are provided on the bottom frame; a bottom rack is provided in the middle of the bottom frame; a bottom V-wheel track is provided on the bottom frame parallel to the bottom rack; the transverse frame of the feeding mechanism includes a transverse frame provided above the bottom frame; bottom rollers sliding on the bottom roller tracks are provided at the lower part of the transverse frame; a transverse frame motor is provided in the middle of the transverse frame; a V-shaped track and a rectangular track are respectively provided on the upper two sides of the transverse frame; The lower part of the transverse frame is also provided with a V-shaped guide wheel that slides on the bottom V-wheel track; the lower parts of both sides of the transverse frame are also provided with hanging wheels to keep it stable; the lifting frame of the feeding mechanism includes a vertically arranged lifting frame; a material rack arm is provided on one side of the lifting frame; multiple sets of material forks are provided on the outer side of the material rack arm; V-shaped wheel sets and flat wheel sets are respectively provided on both sides of the lifting frame corresponding to the V-shaped track and the rectangular track; the lifting frame is also provided with a lifting drive system that drives the V-shaped wheel sets and flat wheel sets to rotate; transverse cylinders are also provided on both sides of the material rack arm.

[0012] Preferably, the top rotating mechanism of the material cart includes an I-beam that cooperates with the upper rail; the top rotating mechanism of the material cart also includes a positioning cylinder; a top fixing plate is provided on the upper part of the I-beam; a rotary motor for driving the rotation of the I-beam is provided on the lower part of the top fixing plate; a rotary support is provided between the rotary motor and the I-beam; multiple support wheels are also provided on the lower part of the I-beam; the bottom fixing mechanism of the material cart includes a bottom fixing plate provided at the lower part; a material cart lifting cylinder is provided above the bottom fixing plate; a fixed shaft is connected to the upper part of the material cart lifting cylinder through a bushing.

[0013] The present invention also provides a sorting and feeding process for a material tray sorting and feeding workstation, the sorting and feeding process comprising the following steps: The cleaned trays are placed upside down on the roller conveyor line and transported forward. A flipping mechanism flips the trays so they face up. Simultaneously, the food to be freeze-dried is placed on a lifting belt conveyor line, which transports the food to a telescopic fabric conveyor line for even distribution. The telescopic fabric conveyor line continues to transport the food forward to a weighing conveyor line. Once the preset weight is reached, the food is further transported to a tray on the roller conveyor line. The tray continues to be transported forward until it reaches the top of the tray lifting mechanism. After being positioned by a blocking cylinder, the tray lifting cylinder moves upward, driving the synchronous belt via a synchronous pulley. This, in turn, moves the lifting frame upward, lifting the tray to a certain height and placing it in front of the tray conveyor belt. At this point, the rotating synchronous belt is vertically downward. Then, a synchronous belt rotation cylinder drives the rotating synchronous belt to rotate horizontally. The rotating synchronous belt, in conjunction with the conveyor belt, transports the tray to the forklift.

[0014] To facilitate the transport of material trays to forks at different heights, the lifting frame of the feeding mechanism is controlled at different heights on the transverse frame of the feeding mechanism. Once all forks are filled with material trays, the top rotating mechanism and bottom fixing mechanism of the rear cart have secured the cart. Through the movement of the transverse frame of the feeding mechanism on the bottom frame of the feeding mechanism, all material trays on the forks are transferred to the cart. The rotation of the cart is controlled by the cooperation of the top rotating mechanism and the bottom fixing mechanism. After the cart is filled with material trays in multiple stages, it is transported away via the track to proceed to the subsequent freeze-drying operation.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The sorting and feeding workstation of the present invention realizes automatic tray sorting, weighing and automatic loading of food into carts before freeze drying, replacing manual operation and reducing labor intensity; 2. The workstation using this invention improves production stability and efficiency, and reduces production costs; 3. This invention realizes continuous and automated production of pre-freeze drying preparation and feeding, and only one worker is needed per shift to monitor production according to the production plan, which greatly reduces the dependence on manual operation. Other features and advantages of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments or related technologies of this disclosure, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a three-dimensional diagram of the working stand of the present invention; Figure 2 This is a top view of the workstation of the present invention; Figure 3 This is the main view of the workstation of the present invention; Figure 4 This is a diagram showing the working state of the workstation tray lifting mechanism of the present invention; Figure 5 This is a perspective view of the workstation tray lifting mechanism of the present invention; Figure 6 This is a perspective view of the lifting portion of the workstation tray lifting mechanism of the present invention; Figure 7 This is a perspective view of the material tray conveyor belt at the workstation of the present invention; Figure 8 This is a perspective view of the first working state of the workstation tray corner conveyor line of the present invention; Figure 9 This is a perspective view of the second working state of the workstation tray corner conveyor line of the present invention; Figure 10 This is a perspective view of the workstation tray sorting and feeding mechanism of the present invention; Figure 11 This is a perspective view of the bottom frame of the workstation of the present invention; Figure 12 This is a perspective view of the workstation's transverse frame of the present invention; Figure 13 This is a perspective view of the lifting frame of the workstation of the present invention; Figure 14 This is a diagram showing the working state of the lifting frame of the workstation of the present invention; Figure 15 This is a perspective view of the rotating mechanism on top of the material cart at the workstation of the present invention; Figure 16 This is a perspective view of the bottom fixing mechanism of the workstation material cart of the present invention; Figure 17 This is a perspective view of the workstation lifting belt conveyor line of the present invention; Figure 18 This is a perspective view of the telescopic fabric conveyor line of the workstation of the present invention; Figure 19 This is a three-dimensional view of the weighing and conveying line of the workstation of the present invention; Figure 20 This is a perspective view of the workstation tilting mechanism of the present invention; In the diagram: 1. Roller conveyor line; 2. Material tray lifting mechanism; 3. Material tray conveyor belt; 4. Material tray sorting and loading mechanism; 5. Material cart top rotating mechanism; 6. Material cart bottom fixing mechanism; 7. Lifting belt conveyor line; 8. Telescopic fabric conveyor line; 9. Weighing conveyor line; 10. Tilting mechanism; 21. Lifting main frame; 22. Lifting section; 23. Roller side guard; 24. Roller; 25. Roller motor; 26. Blocking cylinder; 221. Lifting secondary frame; 222. Material tray lifting cylinder; 223. Synchronous pulley; 224. Synchronous belt; 225. Lifting frame; 226. Central guide rail; 227. Side guide rail; 228. Slider; 31. Support frame; 32. Corner conveyor line; 321. Conveyor belt frame; 322. Conveyor belt; 323. Rotating synchronous belt; 324. Synchronous belt rotating cylinder; 41. Loading. 42. Bottom frame of the mechanism; 43. Horizontal movement frame of the feeding mechanism; 411. Lifting frame of the feeding mechanism; 412. Bottom roller track; 413. Bottom rack; 414. Bottom V-wheel track; 421. Horizontal movement frame; 422. Bottom rollers; 423. Horizontal movement frame motor; 424. V-shaped track; 425. Rectangular track; 426. V-shaped guide wheel; 427. Hanging wheel; 431. Lifting... 432. Lowering frame, 433. Material rack arm, 434. Material fork, 435. V-type wheel set, 436. Flat wheel set, 437. Lifting drive system, 438. Lateral movement cylinder, 51. I-beam, 52. Positioning cylinder, 53. Top fixing plate, 54. Rotary motor, 55. Slewing support, 56. Support wheel, 61. Bottom fixing plate, 62. Material cart lifting cylinder, 63. Bushing, 64. Fixed shaft, L. Material tray. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0020] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0021] Please see Figure 1-20 The present invention provides a technical solution: a material tray sorting and feeding workstation, the workstation including a roller conveyor line 1 set at the front end; a material tray lifting mechanism 2 set at the rear end of the roller conveyor line 1; a material tray conveyor belt 3 set above the material tray lifting mechanism 2; a material tray sorting and feeding mechanism 4 set at the end of the material tray conveyor belt 3; and a material cart top rotating mechanism 5 and a material cart bottom fixing mechanism 6 set on the side of the material tray sorting and feeding mechanism 4.

[0022] Roller conveyor 1 transports the material trays forward to above the material tray lifting mechanism 2. The material tray lifting mechanism 2 lifts the material trays L to the front of the material tray conveyor belt 3, and the material tray conveyor belt 3 sends the material trays to the material tray sorting and loading mechanism 4. Material carts are fixed to the side of the material tray sorting and loading mechanism 4 by a material cart top rotating mechanism 5 and a material cart bottom fixing mechanism 6. The material tray sorting and loading mechanism 4 feeds the material trays L one by one into the material carts L. The main function of roller conveyor 1 is to transport the material trays L, and it mainly consists of a frame, a transmission system, rollers, and an electrical control system.

[0023] A lifting belt conveyor 7 is provided on the side of the roller conveyor line 1; a telescopic fabric conveyor 8 is provided at the rear end of the lifting belt conveyor line 7; a weighing conveyor 9 is provided at the rear end of the telescopic fabric conveyor line 8; and the weighing conveyor 9 is located inside the roller conveyor line 1.

[0024] A lifting belt conveyor 7 is installed on the side of the roller conveyor line 1 to transport food upwards. Its main function is to transport food cut by the dicing or slicing machine to the upper part. This roller conveyor line mainly consists of a frame, a transmission system, a belt conveyor, and an electrical control system. A telescopic fabric conveyor 8 evenly transports the food conveyed by the lifting belt conveyor 7 into a material tray. It mainly consists of a frame, a transmission system, a telescopic belt, and an electrical control system. The weighing conveyor line mainly detects the weight of the food in the material tray and, after it reaches a specified range, transports it to the next workstation. It mainly consists of a frame, a transmission system, a belt conveyor, a weighing module, and an electrical control system.

[0025] The roller conveyor line 1 is also equipped with a tilting mechanism 10. The tilting mechanism 10 is mainly responsible for turning the cleaned material tray 180 degrees so that the tray opening faces upward. The tilting mechanism 10 mainly consists of a frame, a conveying system, a tilting mechanism and an electrical control part.

[0026] The material tray lifting mechanism 2 includes a lifting main frame 21 located at the bottom; a lifting section 22 is located inside the lifting main frame 21; a roller guard 23 is located on the upper part of the lifting section 22; a roller 24 is located on the inner side of the roller guard 23; the roller 24 is driven to rotate by a roller motor 25; and a blocking cylinder 26 is located at the end of the material tray lifting mechanism 2. The material tray lifting mechanism is mainly used to lift the material tray to a certain height when it reaches this work position, and then transport the material tray to the next work position in conjunction with the material tray conveyor belt. It mainly consists of a frame, cylinder, slider, linear guide, and electrical control components.

[0027] The lifting section 22 includes a vertically arranged lifting sub-frame 221; a material tray lifting cylinder 222 is installed inside the lifting sub-frame 221; a synchronous pulley 223 is connected upward to the material tray lifting cylinder 222; a synchronous belt 224 is installed on the synchronous pulley 223; a lifting frame 225 is connected to one side of the synchronous belt 224; a central guide rail 226 is installed on the synchronous pulley 223; side guide rails 227 are installed on both sides of the lifting sub-frame 221; and sliders 228 corresponding to the central guide rail 226 and side guide rails 227 are installed inside the lifting frame 225. The lifting section 22 mainly relies on the lifting cylinder 222 to drive the synchronous pulley 223, which in turn drives the synchronous belt 224 to move, causing the lifting frame 225 to be lifted upward. Furthermore, the cooperation between the guide rails and sliders makes the lifting process more stable.

[0028] The material tray conveyor belt 3 includes a support frame 31 at the bottom; a corner conveyor line 32 is installed on the upper part of the support frame 31; the corner conveyor line 32 includes a conveyor belt frame 321 at the bottom; a conveyor belt 322 is installed on the upper part of the conveyor belt frame 321; a rotating synchronous belt 323 is installed at the front end of the conveyor belt 322; the rotating synchronous belt 323 is rotated by a synchronous belt rotating cylinder 324. The material tray conveyor belt 3 mainly transports the material tray lifted by the material tray lifting mechanism 2 to the next work station. This material tray conveyor belt mainly consists of a frame, a transmission system, a belt conveyor, a cylinder, and an electrical control system.

[0029] The pallet sorting and feeding mechanism 4 includes a bottom frame 41 at the bottom; a sliding frame 42 on the top of the bottom frame 41; and a lifting frame 43 on one side of the sliding frame 42. X-turns are achieved by the movement of the sliding frame 42 on the bottom frame 41, and Y-turns are achieved by the lifting frame 43 on the sliding frame 42. The pallet sorting and feeding mechanism 4 mainly places the pallets conveyed from the pallet conveyor belt onto each layer of forks 433. Once the forks 433 are full, the entire assembly is transported to the material cart. It mainly consists of a frame, a sliding system, a forward system, a lifting system, and an electrical control system.

[0030] The bottom frame 41 of the feeding mechanism includes a bottom frame 411; two parallel bottom roller tracks 412 are provided on the bottom frame 411; a bottom rack 413 is provided in the middle of the bottom frame 411; a bottom V-wheel track 414 is provided on the bottom frame 411 parallel to the bottom rack 413; the transverse frame 42 of the feeding mechanism includes a transverse frame 421 provided above the bottom frame 411; bottom rollers 422 sliding on the bottom roller tracks 412 are provided at the lower part of the transverse frame 421; a transverse frame motor 423 is provided in the middle of the transverse frame 421; a V-shaped track 424 and a rectangular track 425 are respectively provided on the upper two sides of the transverse frame 421; the transverse frame 421... The lower part is also provided with V-shaped guide wheels 426 that slide on the bottom V-wheel track 414; the lower part of both sides of the transverse frame 421 is also provided with hanging wheels 427 to keep it stable; the lifting frame 43 of the feeding mechanism includes a vertically arranged lifting frame 431; a material rack arm 432 is provided on one side of the lifting frame 431; multiple sets of material forks 433 are provided on the outer side of the material rack arm 432; V-shaped wheel sets 434 and flat wheel sets 435 are respectively provided on both sides of the lifting frame 431 corresponding to the V-shaped track 424 and the rectangular track 425; the lifting frame 431 is also provided with a lifting drive system 436 to drive the V-shaped wheel sets 434 and flat wheel sets 435 to rotate; transverse cylinders 437 are also provided on both sides of the material rack arm 432.

[0031] The top rotating mechanism 5 of the material cart includes an I-beam 51 that cooperates with the upper rail; the top rotating mechanism 5 of the material cart also includes a positioning cylinder 52; a top fixing plate 53 is provided on the upper part of the I-beam 51; a rotary motor 54 for pushing the I-beam 51 to rotate is provided on the lower part of the top fixing plate 53; a slewing support 55 is provided between the rotary motor 54 and the I-beam 51; a plurality of support wheels 56 are also provided on the lower part of the I-beam 51; the bottom fixing mechanism 6 of the material cart includes a bottom fixing plate 61 provided at the bottom; a material cart lifting cylinder 62 is provided above the bottom fixing plate 61; a fixed shaft 64 is connected to the upper part of the material cart lifting cylinder 62 through a bushing 63.

[0032] The top rotating mechanism 5 of the material cart is fixed to the ceiling via a top fixing plate 53, and the bottom fixing mechanism 6 of the material cart is fixed to the floor via a bottom fixing plate 61. The material cart is manually moved along the track between the top rotating mechanism 5 and the bottom fixing mechanism 6. The I-beam 51 is part of the upper track, at which point the material cart is positioned below the I-beam 51 and above the fixed shaft 64. The positioning cylinder 52 then fixes the material cart in the corresponding position, and the lifting cylinder 62 lifts it upwards, using the fixed shaft 64 on the upper part of the bushing 63 to hold the material cart between the top rotating mechanism 5 and the bottom fixing mechanism 6. When the hopper needs to rotate, the rotary motor 54 drives the slewing support 55, causing this small section of the I-beam 51 to rotate, thereby rotating the material cart. The bottom of the material cart rotates on the fixed shaft 64.

[0033] The material handling and loading process of the material tray handling and loading workstation includes the following steps: The cleaned tray L is placed upside down on the roller conveyor line 1 and transported forward by the roller conveyor line 1. The flipping mechanism 10 flips the upside-down tray L so that it faces upward. Simultaneously, the food to be freeze-dried is placed on the lifting belt conveyor 7, which transports the food to the telescopic fabric conveyor 8 to ensure even distribution. The telescopic fabric conveyor 8 then continues to transport the food forward to the weighing conveyor 9. After weighing to the preset weight, the food is further transported to the material tray L on the roller conveyor 1. The material tray L continues to be transported forward to the top of the material tray lifting mechanism 2. After being positioned by the blocking cylinder 26, the material tray lifting cylinder 222 moves upward, driving the synchronous belt 224 through the synchronous pulley 223, which in turn drives the lifting frame 225 to move upward, lifting the material tray L to a certain height and reaching the front of the material tray conveyor belt 3. At this time, the rotating synchronous belt 323 is in a vertical downward state. Then, the synchronous belt rotating cylinder 324 drives the rotating synchronous belt 323 to rotate to a horizontal state. The rotating synchronous belt 323, in conjunction with the conveyor belt 322, transports the material tray L to the material fork 433.

[0034] To facilitate the transport of material trays L to the forks 433 at different heights, the lifting frame 43 of the feeding mechanism is controlled at different heights on the transverse frame 42 of the feeding mechanism. When all forks 433 are filled with material trays L, the top rotating mechanism 5 and the bottom fixing mechanism 6 of the rear cart have fixed the cart. Through the movement of the transverse frame 42 of the feeding mechanism on the bottom frame 41 of the feeding mechanism, the material trays L on all forks 433 are transferred to the cart. Through the cooperation of the top rotating mechanism 5 and the bottom fixing mechanism 6 of the cart, the cart is controlled to rotate and rise. After the entire cart is filled with material trays L in multiple stages, it is transported away by the track to enter the subsequent freeze-drying operation.

[0035] Working Principle: After passing through the washing and drying machine, the tray L, with its opening facing down, is placed correctly by the flipping mechanism 10 and then conveyed to the weighing belt by the roller conveyor line 1. The lifting belt conveyor line 7 conveys the food cut by the dicing machine to the telescopic fabric conveyor line 8. The telescopic fabric conveyor line 8 evenly conveys the food into the tray. Once the weight reaches the set range, the weighing conveyor line 9 conveys the tray to the roller conveyor line 1. The roller conveyor line 1 conveys the tray to the tray lifting station. The tray lifting mechanism 2 lifts the trays L at both stations. The synchronous belt rotary cylinder 324 rotates the synchronous belt 323 to lift the trays L to the bottom. The tray conveyor belt 3 then conveys the two trays to the forks 433 of the tray sorting and loading mechanism 4. The tray sorting and loading mechanism 4 raises one fork. The feeding mechanism 4 repeats its feeding operation until the feeding fork 433 of the feeding mechanism 4 is full. After the trolley is in place and fixed by the top and bottom rotating mechanisms, the feeding mechanism 4 will move the feeding fork 433 to the upper part of the front end of the trolley. The feeding mechanism 4 will then reset and repeat the feeding operation. The trolley will rotate 180° under the joint fixation of the top rotating mechanism 5 and the bottom fixing mechanism 6. The feeding mechanism 4 will then move the feeding plate to the upper part of the rear end of the trolley. The feeding action will be repeated twice to complete the feeding of the lower part of the trolley. At this point, the trolley is full of feeding plate L and will be transported to the next station. This completes one feeding cycle.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material tray sorting and feeding workstation, characterized in that: The workstation includes a roller conveyor line (1) at the front end; a tray lifting mechanism (2) is provided at the rear end of the roller conveyor line (1); a tray conveyor belt (3) is provided above the tray lifting mechanism (2); a tray sorting and feeding mechanism (4) is provided at the end of the tray conveyor belt (3); a tray sorting and feeding mechanism (4) is provided on the side of the tray sorting and feeding mechanism (4); a cart top rotating mechanism (5) and a cart bottom fixing mechanism (6) are provided on the side of the tray sorting and feeding mechanism (4); the tray sorting and feeding mechanism (4) includes a feeding mechanism bottom frame (41) at the bottom; a feeding mechanism transverse frame (42) that can slide along the bottom frame (41) is provided on the upper part of the feeding mechanism bottom frame (41); a feeding mechanism lifting frame (43) is provided on one side of the feeding mechanism transverse frame (42); the upper... The bottom frame (41) of the feeding mechanism includes a bottom frame (411); two parallel bottom roller tracks (412) are provided on the bottom frame (411); a bottom rack (413) is provided in the middle of the bottom frame (411); a bottom V-wheel track (414) is provided on the bottom frame (411) parallel to the bottom rack (413); the transverse frame (42) of the feeding mechanism includes a transverse frame (421) provided above the bottom frame (411); bottom rollers (422) sliding on the bottom roller tracks (412) are provided at the lower part of the transverse frame (421); a transverse frame motor (423) is provided in the middle of the transverse frame (421); the transverse frame (421) has two parallel bottom roller tracks (412) on the bottom frame (411); a bottom rack (413) is provided in the middle of the bottom frame (411); a bottom V-wheel track (414) is provided on the transverse frame (421); the bottom roller track (412) is provided in the middle of the bottom frame (411); the bottom V-wheel track (414 ... The two sides of the part are respectively provided with V-shaped rails (424) and rectangular rails (425); a V-shaped guide wheel (426) that slides on the bottom V-wheel rail (414) is also provided below the middle of the transverse frame (421); hanging wheels (427) that keep it stable are also provided on the lower part of both sides of the transverse frame (421); the lifting frame (43) of the feeding mechanism includes a vertically arranged lifting frame (431); a material rack arm (432) is provided on one side of the lifting frame (431); multiple sets of material forks (433) are provided on the outside of the material rack arm (432); V-shaped wheel sets (434) and flat wheel sets (435) are respectively provided on both sides of the lifting frame (431) corresponding to the V-shaped rails (424) and rectangular rails (425); The lifting frame (431) is also equipped with a lifting drive system (436) that drives the V-shaped wheel set (434) and the flat wheel set (435) to rotate; the material rack arm (432) is also equipped with transverse cylinders (437) on both sides; the top rotating mechanism (5) of the material cart includes an I-beam (51) that cooperates with the upper rail; the top rotating mechanism (5) of the material cart also includes a positioning cylinder (52); a top fixing plate (53) is provided on the upper part of the I-beam (51); a rotary motor (54) that pushes the I-beam (51) to rotate is provided on the lower part of the top fixing plate (53); a slewing support (55) is provided between the rotary motor (54) and the I-beam (51); and multiple support wheels (56) are also provided on the lower part of the I-beam (51).The bottom fixing mechanism (6) of the material cart includes a bottom fixing plate (61) disposed at the bottom; a material cart lifting cylinder (62) is disposed above the bottom fixing plate (61); a fixed shaft (64) is connected to the upper part of the material cart lifting cylinder (62) through a bushing (63).

2. The material tray sorting and feeding workstation according to claim 1, characterized in that: The roller conveyor line (1) is provided with a lifting belt conveyor line (7) on its side; a telescopic fabric conveyor line (8) is provided at the rear end of the lifting belt conveyor line (7); a weighing conveyor line (9) is provided at the rear end of the telescopic fabric conveyor line (8); and the weighing conveyor line (9) is located inside the roller conveyor line (1).

3. The material tray sorting and feeding workstation according to claim 1, characterized in that: The roller conveyor line (1) is also equipped with a tilting mechanism (10).

4. The material tray sorting and feeding workstation according to claim 1, characterized in that: The material tray lifting mechanism (2) includes a lifting main frame (21) at the bottom; a lifting part (22) is provided inside the lifting main frame (21); a roller stop (23) is provided on the upper part of the lifting part (22); a roller (24) is provided on the inner side of the roller stop (23); the roller (24) is driven to rotate by a roller motor (25); and a blocking cylinder (26) is also provided at the end of the material tray lifting mechanism (2).

5. A material tray sorting and feeding workstation according to claim 4, characterized in that: The lifting section (22) includes a vertically arranged lifting sub-frame (221); a material tray lifting cylinder (222) is arranged inside the lifting sub-frame (221); the material tray lifting cylinder (222) is connected upward to a synchronous pulley (223); a synchronous belt (224) is arranged on the synchronous pulley (223); a lifting frame (225) is connected to one side of the synchronous belt (224); a central rail (226) is arranged on the synchronous pulley (223); side rails (227) are arranged on both sides of the lifting sub-frame (221); and a slider (228) corresponding to the central rail (226) and the side rails (227) is arranged inside the lifting frame (225).

6. The material tray sorting and feeding workstation according to claim 1, characterized in that: The material tray conveyor belt (3) includes a support frame (31) at the bottom; a corner conveyor line (32) is provided on the upper part of the support frame (31); the corner conveyor line (32) includes a conveyor belt frame (321) at the bottom; a conveyor belt (322) is provided on the upper part of the conveyor belt frame (321); a rotating synchronous belt (323) is provided at the front end of the conveyor belt (322); the rotating synchronous belt (323) is rotated by a synchronous belt rotating cylinder (324).

7. The material handling and feeding process of a material tray handling and feeding workstation as described in any one of claims 1-6, characterized in that: The finishing and feeding process includes the following steps: The cleaned tray (L) is placed upside down on the roller conveyor line (1) and transported forward by the roller conveyor line (1). The inverted tray (L) is flipped upside down by the flipping mechanism (10) so that the food to be freeze-dried is placed on the lifting belt conveyor line (7). The lifting belt conveyor line (7) transports the food to the telescopic fabric conveyor line (8) to make the food evenly distributed. The telescopic fabric conveyor line (8) continues to transport the food forward to the weighing conveyor line (9). After the weight reaches the preset weight, the food is further transported to the tray (L) on the roller conveyor line (1) and the tray (L) continues to be transported forward. Upon reaching the top of the material tray lifting mechanism (2), after being positioned by the blocking cylinder (26), the material tray lifting cylinder (222) moves upward, driving the synchronous belt (224) through the synchronous pulley (223), which in turn drives the lifting frame (225) to move upward, lifting the material tray (L) to a certain height and reaching the front of the material tray conveyor belt (3). At this time, the rotating synchronous belt (323) is in a vertical downward state. Then, the synchronous belt rotating cylinder (324) drives the rotating synchronous belt (323) to rotate to a horizontal state. The rotating synchronous belt (323) cooperates with the conveyor belt (322) to transport the material tray (L) to the fork (433). In order to transport the material trays (L) to the forks (433) at different heights, the lifting frame (43) of the feeding mechanism is controlled at different heights on the transverse frame (42) of the feeding mechanism. When all the forks (433) are full of material trays (L), the top rotating mechanism (5) and the bottom fixing mechanism (6) of the rear cart have fixed the cart. By moving the transverse frame (42) of the feeding mechanism on the bottom frame (41) of the feeding mechanism, the material trays (L) on all the forks (433) are transferred to the cart. By cooperating with the top rotating mechanism (5) and the bottom fixing mechanism (6) of the cart, the cart is controlled to rotate and lift. After the entire cart is full of material trays (L) in multiple times, the cart is transported away by the track and enters the subsequent freeze-drying operation.

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