Automatic material paving system for vacuum freeze-drying equipment

Abstract

This invention discloses an automatic material spreading system for vacuum freeze-drying equipment, comprising: a loading tray for loading freeze-dried material; a spreading tray for spreading the freeze-dried material on the loading tray; a lifting device for conveying the freeze-dried material to the spreading tray; a material gathering cover disposed at the bottom of the spreading tray; and a conveying channel disposed below the spreading tray. The loading tray is movable within the conveying channel, the bottom of the material gathering cover is inserted into the conveying channel, and the depth of the conveying channel is greater than the height of the loading tray. This invention can reduce material waste and thus lower production costs.

Description

Technical Field

[0001] This invention belongs to the field of freeze-dried food processing technology, and in particular relates to an automatic material feeding system for vacuum freeze-drying equipment. Background Technology

[0002] After freeze-dried food production and processing, the freeze-dried food needs to be packaged into trays. Before packaging, the freeze-dried food is first spread on the trays. In related technologies, a high-frequency vibration of a spreader is generally used to spread the material evenly on the trays. However, when the spreader spreads the material, small particles are easily splashed out, and dust in the material is also easily released, resulting in some material waste and increasing the cost of freeze-dried food processing. Summary of the Invention

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] In order to overcome the shortcomings of the prior art, the present invention provides an automatic material feeding system for vacuum freeze-drying equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic material spreading system for vacuum freeze-drying equipment, comprising: a loading tray for loading freeze-dried material; a spreading tray for spreading freeze-dried material on the loading tray; a lifting device for conveying freeze-dried material to the spreading tray; a material gathering cover disposed at the bottom of the spreading tray; and a conveying channel disposed below the spreading tray; the loading tray is movable within the conveying channel, the bottom of the material gathering cover is inserted into the conveying channel, and the depth of the conveying channel is greater than the height of the loading tray.

[0006] Furthermore, the automatic material feeding system for vacuum freeze drying equipment also includes: a guide plate, located on both sides of the feeding tray; a first slider, located on the feeding tray; the guide plate is provided with a first groove corresponding to the first slider; the bottom surface of the feeding tray is inclined; and the bottom of the feeding tray is provided with multiple discharge ports.

[0007] Furthermore, the automatic material feeding system for vacuum freeze-drying equipment also includes: a baffle for closing part of the discharge port; a first push rod for moving the baffle on the feeding tray; a first return spring for moving the baffle back to its initial position; and a first movable cavity on the feeding box for the baffle to move.

[0008] Furthermore, the automatic material feeding system for vacuum freeze-drying equipment also includes: a first positioning plate, located above the first slider; a second positioning plate, located below the first slider; a first connecting spring, connecting the first positioning plate and the second positioning plate to the first slider; when the first slider is in the first chute, the first positioning plate abuts against the top surface of the first chute, and the second positioning plate abuts against the bottom surface of the first chute.

[0009] Furthermore, the automatic material feeding system for vacuum freeze-drying equipment also includes: a first drive wheel, mounted on a second positioning plate; a first movable plate, which drives and cooperates with the first drive wheel; a first push rod mounted on the first movable plate; and a first chute bottom surface having multiple first drive teeth that cooperate with the first drive wheel.

[0010] Furthermore, the automatic material feeding system for vacuum freeze-drying equipment also includes: a connecting frame located at the top of the material hood; a counterweight frame located at the bottom of the material hood; a first connecting rod connected to the material hood via a first connecting belt; and when the first slider moves within the first chute, the first connecting rod intermittently pulls the first connecting belt upwards.

[0011] Furthermore, the automatic material feeding system for vacuum freeze-drying equipment also includes: a second push rod that pushes the first connecting rod to move; a second connecting belt that is connected to the second push rod; and a third push rod that is mounted on the first slider. When the first slider moves within the first slide groove, the third push rod intermittently pushes the second connecting belt to deform.

[0012] Furthermore, the automatic material feeding system for vacuum freeze-drying equipment also includes: a material carrier plate, located inside the material tray; a cam, which intermittently pushes the material carrier plate to move; a second drive wheel, which drives the cam to rotate; and a conveyor belt, located inside the material conveying channel. After the material tray is removed from below the material tray, the conveyor belt rotates relative to the material tray.

[0013] Furthermore, the automatic material feeding system for vacuum freeze-drying equipment also includes: a fixed roller located at the bottom of the material tray; a first push plate connected to the fixed roller; and a stop bar located on the inner wall of the conveyor channel. The first push plate has a through cavity corresponding to the stop bar. When the material tray moves with the conveyor belt, the first push plate abuts against the stop bar, causing the fixed roller to move away from the second drive wheel.

[0014] Furthermore, the automatic material feeding system for vacuum freeze-drying equipment also includes: a movable rod located inside the cavity; a fourth push rod that pushes the movable rod to move; when the fixed roller disengages from the second transmission wheel, the second transmission wheel rotates with the conveyor belt, driving the fourth push rod to move, and the fourth push rod pushes the movable rod out of the cavity.

[0015] The advantage of this invention is that it provides an automatic material feeding system for vacuum freeze-drying equipment that reduces material waste and lowers production costs. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0017] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the automatic material spreading system for the vacuum freeze-drying equipment of the present invention.

[0020] Figure 2 for Figure 1 A cross-sectional view of the material conveying channel of the automatic material spreading system for the vacuum freeze-drying equipment in the illustrated embodiment.

[0021] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0022] Figure 4 for Figure 2 Enlarged view of point B in the image.

[0023] Figure 5 for Figure 2 Enlarged view of point C in the image.

[0024] Figure 6 for Figure 1 A cross-sectional view of the material carrier tray of the automatic material spreading system for the vacuum freeze-drying equipment in the illustrated embodiment.

[0025] Figure 7 for Figure 6 Enlarged view of point D in the image.

[0026] Figure 8 for Figure 1 A cross-sectional view of the fifth movable chamber of the automatic material feeding system for the vacuum freeze-drying equipment in the illustrated embodiment.

[0027] Figure 9 for Figure 8 Enlarged view of point E in the image.

[0028] Figure 10 for Figure 9 Enlarged view of point F in the image.

[0029] Figure 11 for Figure 1 A cross-sectional view of the fourth active chamber of the automatic material feeding system for the vacuum freeze-drying equipment in the illustrated embodiment.

[0030] Figure 12 for Figure 11 Enlarged view of point G in the image.

[0031] Figure 13 for Figure 1 A cross-sectional view of the second slider of the automatic material feeding system for the vacuum freeze-drying equipment in the illustrated embodiment.

[0032] Figure 14 for Figure 13 Enlarged view of point H in the image.

[0033] Figure 15 for Figure 1 Cross-sectional view of the second pusher plate of the automatic material feeding system for the vacuum freeze-drying equipment in the illustrated embodiment. Figure 1 .

[0034] Figure 16 for Figure 15 Enlarged view of point I in the image.

[0035] Figure 17 for Figure 1 Cross-sectional view of the second pusher plate of the automatic material feeding system for the vacuum freeze-drying equipment in the illustrated embodiment. Figure 2 .

[0036] Figure 18 for Figure 17 Enlarged view of point J in the image.

[0037] Figure 19 for Figure 1 A cross-sectional view of the first slider of the automatic material feeding system for the vacuum freeze-drying equipment in the illustrated embodiment.

[0038] Figure 20 for Figure 19 Enlarged view of point K in the image.

[0039] Figure 21 for Figure 1 A cross-sectional view of the third movable chamber of the automatic material feeding system for the vacuum freeze-drying equipment in the illustrated embodiment.

[0040] Figure 22 for Figure 21 Enlarged view of point L in the image.

[0041] Figure 23 for Figure 21 Enlarged view of point M in the image.

[0042] The meanings of the reference numerals in the figure are as follows:

[0043] 101. Fabric tray; 1011. First slider; 102. Guide plate; 103. Material collection cover; 104. Receiving tray; 105. Conveying channel; 106. Connecting frame; 107. Counterweight frame; 109. First rotating roller; 1091. Second transmission wheel; 110. Sixth transmission wheel; 111. Synchronous belt; 112. Second rotating roller; 1121. Cam; 113. Fixed roller; 1131. Fourth slider; 1132. Fifth return spring; 1133. Third connecting rod; 114. Third movable plate; 1141. Guide block; 115. Third transmission wheel; 116. Fourth transmission wheel; 117. Mounting rod; 1171. Fourth connecting rod; 1172. Second protrusion; 118. Fifth transmission wheel 119. Drive wheel; 120. Transmission belt; 120. Racket tooth; 1201. Extension rod; 121. Fourth push rod; 122. First push plate; 123. Movable rod; 124. First connecting rod; 125. Second movable plate; 1251. Second push rod; 1252. Second connecting spring; 126. Second connecting belt; 127. Baffle; 1271. Second push plate; 1272. First return spring; 128. Second positioning plate; 129. First positioning plate; 1291. First connecting spring; 130. First push rod; 1301. First movable plate; 131. First transmission wheel; 132. Third push rod; 1321. Third push plate; 1322. Third slider; 1323. Second return spring. Detailed Implementation

[0044] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0045] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0046] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0047] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0048] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0049] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0050] like Figure 1-23 As shown, an automatic material feeding system for vacuum freeze-drying equipment includes a material carrier tray, a material spreading tray 101, a lifting device, a material gathering cover 103, and a material conveying channel 105.

[0051] The loading tray is used to load freeze-dried materials; the spreading tray 101 spreads the freeze-dried materials on the loading tray; the lifting device conveys the freeze-dried materials to the spreading tray 101, and the lifting device is an inclined conveyor belt; the material gathering cover 103 is located at the bottom of the spreading tray 101; the conveying channel 105 is located below the spreading tray 101; the loading tray can move within the conveying channel 105, the bottom of the material gathering cover 103 is inserted into the conveying channel 105, the depth of the conveying channel 105 is greater than the height of the loading tray, the material gathering cover 103 is made of deformable material, preferably plastic paper, and the bottom of the conveying channel 105 is provided with a conveyor belt.

[0052] When the material carrier is placed in the conveyor 105, the conveyor belt transports the material carrier. The material carrier is located at the bottom of the conveyor 105, and the side walls of the conveyor 105 are located on both sides of the material carrier. The bottom of the material gathering cover 103 forms a channel between the material distribution tray 101 and the material carrier, so that all the material falling from the material distribution tray 101 can fall onto the material carrier, avoiding the material from splashing out of the material carrier and reducing the dust generated when the material is laid.

[0053] A vibrator is provided on the fabric tray 101. The bottom surface of the fabric tray 101 is inclined. The bottom of the fabric tray 101 has multiple feeding ports and a first movable cavity. The first movable cavity communicates with some of the feeding ports. The first movable cavity is located at the top of the fabric tray 101 near the bottom inclined surface. A baffle 127 is provided in the first movable cavity. The baffle 127 has multiple first through slots corresponding to the feeding ports. Guide plates 102 are provided on both sides of the fabric tray 101. A first slider 1011 is provided on the fabric tray 101. The guide plates 102 have first sliding grooves corresponding to the first slider 1011. A first positioning plate 129 is provided above the first slider 1011, and a second positioning plate 128 is provided below it. The first positioning plate 129 and the second positioning plate 128 are connected to the first slider 1011 by a first connecting spring 1291. The 011 is provided with a second movable cavity communicating with the first movable cavity. The side wall of the baffle 127 is provided with a second push plate 1271, which passes through the second movable cavity. The two ends of the second push plate 1271 are respectively provided with a first return spring 1272. The second positioning plate 128 is provided with a first movable groove and a second through groove. The second through groove is located at the bottom of the first movable groove. The first movable groove is provided with a first movable plate 1301. The second through groove is provided with a first transmission wheel 131. The first transmission wheel 131 is in transmission cooperation with the first movable plate 1301. The first movable plate 1301 is provided with two first push rods 130, which both pass through the second movable cavity and are located at the two ends of the second push plate 1271 respectively. The bottom surface of the first slide groove is provided with multiple first transmission teeth that cooperate with the first transmission wheel 131.

[0054] By setting the first positioning plate 129 and the second positioning plate 128, the fabric disc 101 can continuously vibrate under the action of the vibrator, so that the material can continuously fall from the discharge port. When the first slider 1011 moves in the first chute, the first transmission wheel 131 moves to the position of the first transmission tooth. The first slider 1011 drives the first slider 1011 to move relative to the first transmission tooth. The first transmission tooth drives the first transmission wheel 131 to rotate. The first movable plate 1301 drives the first push rod 130 to move. The first push rod 130 pushes the second push plate 1271 to move. The baffle 127 moves in the first movable cavity. When the first through groove is misaligned with the discharge port, the material is placed near the discharge port at the top of the inclined surface of the fabric disc 101. When the material falls into the fabric tray 101, it cannot fall directly from the discharge port at the top of the slope. Instead, the material rolls down the slope, ensuring that enough material falls from the discharge port near the bottom of the slope of the fabric tray 101. When the first slider 1011 continues to move, the first transmission wheel 131 moves away from the first transmission gear, and the first return spring 1272 pushes the baffle 127 to move in the initial direction. The first through groove is aligned with the discharge port again, opening all the discharge ports so that the material can fall from the entire fabric tray 101. This ensures the uniformity of the material distribution on the fabric tray 101 and prevents the discharge volume from the discharge port near the top of the slope of the fabric tray 101 from being consistently higher than that from the discharge port near the bottom of the slope of the fabric tray 101.

[0055] The top of the material cover 103 is provided with a connecting frame 106 and the bottom is provided with a counterweight frame 107. The connecting frame 106 is provided with a second slider. The bottom of the fabric tray 101 is provided with a magnetic block and a second slide groove corresponding to the second slider. The connecting frame 106 is made of ferromagnetic material. After the second slider slides into one end of the second slide groove, the connecting frame 106 abuts against the magnetic block, so that the magnetic block generates an adsorption force on the connecting frame 106, fixing the material cover 103 to the bottom of the fabric tray 101.

[0056] The second slider has a first groove, one end of which has a second movable groove. A first connecting rod 124 is located within the second movable groove, and the first connecting rod 124 is connected to the inner wall of the material shroud 103 via a first connecting band. A third movable groove is located at the top of the second groove, and a second movable plate 125 is located within the third movable groove. A second connecting rod is located at the bottom of the second movable plate 125, and a second push rod 1251 is located at the bottom of the second connecting rod. The second movable plate 125 is connected to the third movable groove via a second connecting spring 1252. A fourth movable groove is located at the top of the third movable groove. The top of the movable groove is connected to a second connecting band 126, and the bottom end of the second connecting band 126 is fixed to the second movable plate 125; the first slider 1011 is provided with a fifth movable groove that communicates with the fourth movable groove, and a third push rod 132 passes through the fifth movable groove. One end of the third push rod 132 is provided with a third push plate 1321, and a plurality of first protrusions are provided on the inner wall of the first sliding groove; the third push rod 132 is provided with a third slider 1322, and the inner wall of the fifth movable groove is provided with a third sliding groove corresponding to the third slider 1322. The third slider 1322 is provided with a second return spring 1323.

[0057] When installing the material cover 103, the second slider is pushed into the second groove, and the first connecting rod 124 moves to the top of the second push rod 1251. When the first slider 1011 moves in the first groove, it intermittently passes by the side of the first protrusion. The first protrusion abuts against the third push plate 1321, pushing the third push plate 1321 to move. When the third push rod 132 moves towards one end of the fifth movable groove, it abuts against the second connecting belt 126. The middle part of the second connecting belt 126 moves towards one end of the fifth movable groove and deforms. The second connecting belt 126 pulls the second movable plate 125 upward, and the second push rod 1251 pushes the first connecting rod. As 124 moves upward, the first connecting rod 124 drives the first connecting belt to move, and the first connecting belt pulls the inner wall of the material hood 103 upward a short distance. The counterweight moves upward a short distance with the deformation of the material hood 103. After the third push plate 1321 passes by the side of the first protrusion, the second return spring 1323 pushes the third push rod 132 to move out of the fifth movable groove. The second connecting spring 1252 pushes the second movable plate 125 downward. After the counterweight loses its tension, it falls downward. The counterweight generates vibration on the material hood 103, shaking off the material adhering to the inner wall of the material hood 103, further reducing the loss of material during the material spreading process.

[0058] The material tray contains a material carrier plate, and the bottom of the material tray has a mounting groove. The mounting groove contains two first rotating rollers 109 and two sixth transmission wheels 110. Second transmission wheels 1091 are respectively mounted at both ends of the first rotating rollers 109. The two sixth transmission wheels 110 are connected by a synchronous belt 111. The sidewall of the synchronous belt 111 contacts and engages with the second transmission wheels 1091. The second transmission wheels 1091 extend from the bottom of the mounting groove. A second rotating roller 112 is also provided in the mounting groove, passing through the middle of the synchronous belt 111 and engaging with it. A cam 1121 is provided on the second rotating roller 112. The mounting groove also contains... There is a fixed roller 113, and a fourth slider 1131 is provided at one end of the fixed roller 113. A fourth groove corresponding to the fourth slider 1131 is provided on the inner wall of the mounting groove. A third movable cavity communicating with the fourth groove is also provided on the material tray. The fourth slider 1131 passes through the fourth groove. A third connecting rod 1133 and a fifth return spring are provided on the fourth slider 1131. The third connecting rod 1133 is located in the third movable cavity. A first push plate 122 is provided on the third connecting rod 1133. The first push plate 122 extends out of the third movable cavity. A slot for the first push plate 122 to move is provided on the side wall of the material tray. A through cavity is provided on the first push plate 122. A stop bar is provided on the inner wall of the mounting groove. A third through groove is provided at the bottom of the through cavity. The bottom of the moving cavity is provided with a second groove, and a movable rod 123 is provided inside the through cavity. One end of the movable rod 123 is provided with a fifth slider. The inner wall of the through cavity is provided with a fifth sliding groove corresponding to the fifth slider. A third return spring is provided on the fifth slider. The top of the third moving cavity is provided with a fourth moving cavity. The fourth moving cavity is provided with a fourth push rod 121 and a third moving plate 114. The bottom of the fourth moving cavity is provided with a fourth through groove corresponding to the fourth push rod 121, and the top is provided with a fifth through groove. The bottom of the third moving plate 114 is provided with a guide block 1141, which has a triangular structure. The fourth push rod 121 and the fourth through groove are connected by a slider-spring structure. One end of the third moving plate 114 is provided with a fourth return spring. The bottom of the fourth moving cavity is provided with The fifth movable cavity contains a third transmission wheel 115 and a fourth transmission wheel 116. The fourth transmission wheel 116 is located below the third transmission wheel 115. The fifth movable cavity also contains a mounting rod 117, on which two fifth transmission wheels 118 are mounted. The two fifth transmission wheels 118 are connected by a transmission belt 119. The third transmission wheel 115 has a second transmission tooth and a third transmission tooth. The second transmission tooth is an incomplete tooth. The third transmission wheel 115 is connected to the third movable plate 114 through the second transmission tooth. The fourth transmission wheel 116 is connected to the first rotating roller 109. The mounting rod 117 and the third connecting rod 1133 are connected by a fourth connecting rod 1171.

[0059] The bottom of the third movable cavity is provided with a sixth movable groove, and a ratchet 120 is provided in the sixth movable groove. The ratchet 120 is made of elastic material. The bottom of the third movable plate 114 is provided with multiple third grooves. The sixth movable groove is connected to the fifth movable cavity. The bottom of the ratchet 120 is provided with an extension rod 1201, and the top of the mounting rod 117 is provided with a second protrusion 1172.

[0060] After the material in the loading tray reaches the specified weight, the feeding tray 101 stops feeding, and the conveyor belt drives the loading tray forward. The loading tray moves to the side of the stop bar, and the stop bar enters the through cavity and abuts against the side wall of the movable rod 123. At this time, the movable rod 123 is in the through cavity, and the loading tray moves relative to the first push plate 122. The fifth through slot moves to below the fourth push rod 121, and the mounting rod 117 is stationary relative to the loading tray. The third drive wheel 115 and the fourth drive wheel 116 move to contact the drive belt 119. Because the stop bar abuts against the movable rod 123, the loading tray moves relative to the first push plate 122, and the fifth through slot moves to below the fourth push rod 121. The mounting rod 117 is stationary relative to the loading tray, and the third drive wheel 115 and the fourth drive wheel 116 move to contact the drive belt 119. At position 23, the material tray cannot move forward, and the conveyor belt rotates relative to the material tray. The conveyor belt drives the second drive wheel 1091 to rotate, which in turn drives the fourth drive wheel 116 to rotate. The fourth drive wheel 116 drives the third drive wheel 115 to rotate via the drive belt 119. At this time, the second protrusion 1172 is at the bottom of the extension rod 1201, and the ratchet 120 rises from the sixth movable slot. When the second drive tooth contacts the third movable plate 114, it drives the third movable plate 114 to move, and the guide block 1141 moves to the fourth push rod. At the top of 121, guide block 1141 pushes fourth push rod 121 downward, the fourth push rod 121 inserts into fifth through slot, pushing movable rod 123 downward. Movable rod 123 enters second groove through fourth through slot, causing movable rod 123 to disengage from the stop rod side. Utilizing the incomplete tooth setting of second transmission gear, the moving speed of third movable plate 114 is slowed down. When first roller 109 rotates, it drives second roller 112 to rotate. Cam 1121 intermittently impacts the carrier plate, generating multiple vibrations on the carrier plate. The material on the carrier plate is shaken evenly to ensure uniform distribution. After the movable rod 123 enters the second groove, the limit of the carrier plate disappears, and the conveyor belt drives the carrier plate to continue moving forward. The stop rod passes through the cavity, and the fifth reset spring pushes the third connecting rod 1133 to move back. The fixed roller 113 moves towards the second transmission wheel 1091 and abuts against the second transmission wheel 1091 to fix the second transmission wheel 1091. The conveyor belt sends the carrier plate out of the conveying channel 105 and transports the carrier plate to the next process.

[0061] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. An automatic material feeding system for a vacuum freeze-drying equipment, comprising: Feeding trays are used to load freeze-dried materials; Fabric tray, on which freeze-dried material is laid; The lifting device conveys the freeze-dried material onto the fabric tray; Its features are: The automatic material feeding system for the vacuum freeze-drying equipment also includes: A material hood is provided at the bottom of the fabric tray; A material conveyor is located below the fabric tray; The material carrier tray is movable within the conveying channel, the bottom of the material hood is inserted into the conveying channel, and the depth of the conveying channel is greater than the height of the material carrier tray. The automatic material feeding system for the vacuum freeze-drying equipment also includes: Guide plates are located on both sides of the fabric tray; The first slider is disposed on the fabric tray; The guide plate is provided with a first groove corresponding to the first slider, the bottom surface of the fabric tray is inclined, and the bottom of the fabric tray is provided with multiple discharge ports; The automatic material feeding system for the vacuum freeze-drying equipment also includes: A baffle is used to close part of the discharge port; The first push rod pushes the baffle to move on the fabric tray; The first reset spring pushes the baffle back to its initial position; The fabric box is provided with a first movable cavity for the baffle to move; The automatic material feeding system for the vacuum freeze-drying equipment also includes: A connecting frame is located at the top of the polymer cover; A counterweight frame is located at the bottom of the polymer cover; The first connecting rod is connected to the polymer cover via a first connecting strap; As the first slider moves within the first groove, the first connecting rod intermittently pulls the first connecting belt upwards.

2. The automatic material feeding system for vacuum freeze-drying equipment according to claim 1, characterized in that: Also includes: The first positioning plate is located above the first slider; The second positioning plate is located below the first slider; A first connecting spring connects the first positioning plate and the second positioning plate to the first slider; When the first slider is in the first groove, the first positioning plate abuts against the top surface of the first groove, and the second positioning plate abuts against the bottom surface of the first groove.

3. The automatic material feeding system for vacuum freeze-drying equipment according to claim 2, characterized in that: Also includes: The first transmission wheel is mounted on the second positioning plate; The first movable plate is in transmission cooperation with the first transmission wheel; The first push rod is disposed on the first movable plate, and the bottom surface of the first slide groove is provided with multiple first transmission teeth that cooperate with the first transmission wheel.

4. The automatic material feeding system for vacuum freeze-drying equipment according to claim 1, characterized in that: Also includes: The second push rod pushes the first connecting rod to move; The second connecting strip is connected to the second push rod; The third push rod is located on the first slider; As the first slider moves within the first groove, the third push rod intermittently causes the second connecting band to deform.

5. The automatic material feeding system for vacuum freeze-drying equipment according to claim 1, characterized in that: Also includes: A material carrier plate is disposed within the material carrier tray; A cam intermittently pushes the material carrier plate to move; The second transmission wheel drives the cam to rotate; A conveyor belt is installed inside the material conveying channel; After the material tray is removed from under the fabric tray, the conveyor belt rotates relative to the material tray.

6. The automatic material feeding system for vacuum freeze-drying equipment according to claim 5, characterized in that: Also includes: A fixed roller is located at the bottom of the material tray; The first push plate is connected to the fixed roller; A stop bar is provided on the inner wall of the conveying channel; The first push plate is provided with a through cavity corresponding to the stop bar. When the material tray moves with the conveyor belt, the first push plate abuts against the stop bar, causing the fixed roller to move away from the second transmission wheel.

7. The automatic material feeding system for vacuum freeze-drying equipment according to claim 6, characterized in that: Also includes: A movable rod is located within the through cavity; The fourth push rod pushes the movable rod to move; When the fixed roller disengages from the second transmission wheel, the second transmission wheel rotates with the conveyor belt, causing the fourth push rod to move, and the fourth push rod pushes the movable rod out of the cavity.

Images