Automatic material changing mold device for sweet potato sheet jelly manufacturing

By designing a mold device for automatic material replacement, the automatic installation and replacement of raw material barrels is achieved using a reversible clamping device, which solves the problem of low production efficiency caused by manual feeding in the existing sweet potato paste production process and achieves efficient and automated production.

CN119423328AInactive Publication Date: 2025-02-14HUNAN PENGSHULIN POWDER CO LTD
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Patent Information

Application Number
CN202411869389.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-02-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the existing sweet potato paste production process, manual feeding and feeding leads to low production efficiency, and automated material replacement equipment has not yet achieved efficient automation.

Method used

An automatic mold device for material replacement is designed. By setting up a reversible clamping device, the upper and lower sets of devices can be coordinated, and the raw material barrels are automatically installed and replaced, and the automatic loading and material replacement is realized.

Benefits of technology

It effectively shortens the window period when changing materials, improves production efficiency, and realizes the smoothness and automation of the production process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an automatic material changing mold device for sweet potato sheet jelly manufacturing, and relates to the technical field of sweet potato powder production equipment, a mounting seat is arranged in a rack, an overturning shaft is fixedly arranged on the mounting seat and is rotationally arranged on the rack through a bearing, and a mold guide rail is arranged on the lower side of the mounting seat and is fixedly arranged on the rack through a bearing; the two clamping seats are fixedly arranged on the upper side wall and the lower side wall of the mounting seat in an up-down symmetry mode respectively, the two supporting frames are fixedly arranged on the upper side wall and the lower side wall of the mounting seat in an up-down symmetry mode respectively, the lifting hydraulic rods are fixedly arranged on the supporting frames, and the lifting frame is fixedly arranged on output shafts of the lifting hydraulic rods. The cover plate is fixedly arranged on the lifting frame; the turnover clamping device is arranged, so that through cooperation of the upper device and the lower device, one device is used for installing a raw material barrel and keeping normal feeding, the other device is used for replacing the raw material barrel, and therefore automatic material replacing and feeding of the equipment are achieved.
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Description

Technical Field

[0001] The invention relates to the technical field of sweet potato flour production equipment, and in particular to an automatic material changing mold device for manufacturing sweet potato flour skin. Background Art

[0002] The production of sweet potato rice noodle skin is carried out by crushing and filtering sweet potato tubers to obtain sweet potato starch slurry, then blending the sweet potato starch slurry according to a certain proportion, placing the slurry in a mold and then steaming and shaping it, and then cutting, drying, etc. are performed through subsequent processes to produce the sweet potato rice noodle skin; in the prior art, a manual feeding and conveying processing method is adopted when the raw material slurry is delivered to the mold, which causes a window period in the production process when the raw material barrel is replaced after the raw materials in a raw material barrel are emptied, thereby affecting the production efficiency. The use of automated loading and changing of materials can greatly reduce the window period when changing materials, and can make the production process flow smoother, so as to improve the production efficiency, and corresponding equipment needs to be developed and designed for this. Summary of the invention

[0003] The purpose of the present invention is to address the defects and shortcomings of the prior art and provide a mold device for automatic material replacement in the manufacture of sweet potato vermicelli. A reversible clamping device is provided, so that through the cooperation of two groups of upper and lower devices, one group of devices can install the raw material barrel and maintain normal feeding, and the other group of devices can replace the raw material barrel, thereby realizing automatic material replacement and loading of the equipment.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: It contains the rack, it also contains: A mounting mechanism, wherein the mounting mechanism is arranged on a frame; The clamping mechanism comprises two clamping mechanisms which are symmetrically arranged on the mounting mechanism.

[0005] Preferably, the mounting mechanism comprises: A mounting seat, wherein the mounting seat is arranged inside the frame; A flip shaft, wherein the flip shaft is fixedly arranged on the mounting seat, and the flip shaft is rotatably arranged on the frame through a bearing, and the left end of the flip shaft is inserted into the frame; A rotary cylinder, wherein the rotary cylinder is fixedly arranged on the frame, and the output shaft of the rotary cylinder is transmission-connected to the left end of the flip shaft; A mold guide rail, wherein the mold guide rail is fixedly arranged on the frame and arranged on the lower side of the mounting seat; The lifting and limiting components are divided into two groups and are symmetrically arranged on the upper and lower sides of the mounting seat in an upside-down manner.

[0006] Preferably, the lifting and limiting assembly comprises: Clamping seats, the clamping seats are two and are symmetrically fixed on the upper and lower side walls of the mounting seat; Support frames, the support frames are two and are symmetrically fixed on the upper and lower side walls of the mounting seat, and the support frames are arranged on the side of the clamping seat; A lifting hydraulic rod, wherein the lifting hydraulic rod is fixedly arranged on the support frame, and an output shaft of the lifting hydraulic rod is arranged at an end away from the clamping seat; A lifting frame, wherein the lifting frame is fixedly arranged on the output shaft of the lifting hydraulic rod; The cover plate is fixedly arranged on the lifting frame.

[0007] Preferably, a sealing side edge is integrally formed on the side of the cover plate, a positioning block is integrally formed on the wall of the cover plate facing the clamping seat, a flow guide pipe is passed through and fixed on the cover plate, and a solenoid valve is arranged in series on the flow guide pipe.

[0008] Preferably, the clamping mechanism comprises: Support shafts, the support shafts are in two groups and are respectively arranged on the clamping seats on the upper and lower sides, and one group of support shafts is three and are respectively arranged on the front and rear side walls and the left side wall of the clamping seat through bearing rotation; A clamping claw, wherein the clamping claw is fixedly arranged on the supporting shaft; A worm, wherein three worms are formed into a group and are screwed through bearings and are inserted through the front and rear side walls and the left side wall of the clamping seat; The worm wheel is fixedly arranged on the supporting shaft, and the worm is meshed with the worm wheel.

[0009] Preferably, a servo motor is fixedly arranged on the inner wall of the clamping seat, a driving shaft is fixedly arranged on the output shaft of the servo motor through a spline, and the driving shaft is rotated on the inner wall of the clamping seat through a bearing, a transmission shaft is fixedly arranged on the worm on the left side wall of the clamping seat, the driving shaft and the transmission shaft are connected by a spur gear set, one of the worms on the front and rear side walls of the clamping seat is connected to the driving shaft through a bevel gear set, and the other worm on the front and rear side walls of the clamping seat is connected to the transmission shaft through a bevel gear set.

[0010] Preferably, a rotating seat is passed through the cover plate and rotated through a bearing, a plurality of rotating arms are rotated on the rotating seat through a rotating shaft, and the rotating arms are distributed at equal angles with the circumference of the rotating seat as the center, and a scraper is fixedly provided on one end of the rotating arm away from the rotating seat.

[0011] Preferably, a spline shaft is movably inserted on the rotating seat, a connecting rod is provided on the end of the spline shaft located on one side of the end wall through a rotating shaft, the other end of the connecting rod is rotated on the swing arm through the rotating shaft, a connecting seat is provided on the spline shaft through a bearing rotating sleeve, an opening and closing hydraulic rod is fixedly provided on the lifting frame, and the output shaft of the opening and closing hydraulic rod is fixedly provided on the connecting seat.

[0012] Preferably, a stirring motor is fixedly provided on the lifting frame, a spline sleeve is fixedly provided on the output shaft of the stirring motor, a spline groove is integrally formed on the side wall of the spline shaft away from one end of the connecting rod, and the spline shaft is movably inserted in the spline sleeve through the spline groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This scheme is provided with a reversible mounting seat, symmetrical clamping seats are provided on the upper and lower surfaces of the mounting seat, and a cover plate is provided through a support frame, a lifting hydraulic rod and a lifting frame, so that a barrel filled with raw materials can be clamped by a set of clamping seats and cover plates, so that a full barrel can be turned over to the lower side of the mounting seat for the supply of raw materials, and an empty barrel can be turned over to the upper side of the mounting seat for automatic replacement; 2. This solution sets three clamping claws on the clamping seat, and sets a servo motor to drive the clamping claws to open and close and rotate, so as to clamp and fix the barrel of the raw material, so as to keep the barrel stable when turning the barrel, so as to improve the stability of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 yes Figure 1 Right front side view.

[0016] Figure 3 It is a schematic diagram of the structure after the mounting seat, the clamping seat and the cover plate are mounted on the barrel in the present invention.

[0017] Figure 4 It is a structural schematic diagram of the installation group, the clamping seat and the cover plate in the present invention.

[0018] Figure 5 yes Figure 4 Lower left side view.

[0019] Figure 6 It is a structural schematic diagram of the clamping seat and the servo motor in the present invention.

[0020] Figure 7 It is a structural schematic diagram of the cover plate, the swing arm, the opening and closing hydraulic rod and the stirring motor in the present invention.

[0021] Figure 8It is a structural schematic diagram of the rotating seat, spline shaft and rotary arm in the present invention.

[0022] Description of reference numerals: Frame 1, mounting mechanism 2, mounting seat 2-1, tilting shaft 2-2, rotary cylinder 2-3, mold guide rail 2-4, lifting limit assembly 3, clamping seat 3-1, support frame 3-2, lifting hydraulic rod 3-3, lifting frame 3-4, cover plate 3-5, clamping mechanism 4, support shaft 4-1, clamping claw 4-2, worm gear 4-3, worm 4-4, sealing side edge 5, positioning block 6, guide pipe 7, solenoid valve 8, servo motor 9, drive shaft 10, transmission shaft 11, rotating seat 12, swing arm 13, scraper 14, spline shaft 15, connecting rod 16, connecting seat 17, opening and closing hydraulic rod 18, stirring motor 19, spline sleeve 20, spline groove 21. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0024] like Figure 1-8 As shown, this specific implementation adopts the following technical solutions: It contains rack 1, which also contains: A mounting mechanism 2, wherein the mounting mechanism 2 is arranged on the frame 1; Clamping mechanism 4, wherein the clamping mechanism 4 is two and is symmetrically arranged on the mounting mechanism 2; The mounting mechanism 2 comprises: A mounting seat 2-1, wherein the mounting seat 2-1 is arranged inside the frame 1; The flip shaft 2-2 is fixedly arranged on the mounting seat 2-1, and the flip shaft 2-2 is rotatably arranged on the frame 1 through a bearing, and the left end of the flip shaft 2-2 is inserted into the frame 1; A rotary cylinder 2-3, wherein the rotary cylinder 2-3 is fixedly arranged on the frame 1, and the output shaft of the rotary cylinder 2-3 is transmission-connected to the left end of the flip shaft 2-2; A mold guide rail 2-4, wherein the mold guide rail 2-4 is fixedly arranged on the frame 1, and the mold guide rail 2-4 is arranged on the lower side of the mounting seat 2-1; Lifting limiter components 3, the lifting limiter components 3 are in two groups and are symmetrically arranged on the upper and lower sides of the mounting seat 2-1 in an upside-down manner; The lifting limit assembly 3 includes: Clamping seat 3-1, the clamping seat 3-1 is two and is symmetrically fixed on the upper and lower side walls of the mounting seat 2-1; Support frames 3-2, wherein the support frames 3-2 are two and are symmetrically fixed on the upper and lower side walls of the mounting seat 2-1, and the support frames 3-2 are arranged on the side of the clamping seat 3-1; A lifting hydraulic rod 3-3, wherein the lifting hydraulic rod 3-3 is fixedly arranged on the support frame 3-2, and an output shaft of the lifting hydraulic rod 3-3 is arranged at an end away from the clamping seat 3-1; A lifting frame 3-4, wherein the lifting frame 3-4 is fixedly arranged on the output shaft of the lifting hydraulic rod 3-3; A cover plate 3-5, wherein the cover plate 3-5 is fixedly arranged on the lifting frame 3-4; A sealing side edge 5, wherein the sealing side edge 5 is integrally formed and arranged on a side edge of a side wall of the cover plate 3-5 facing the clamping seat 3-1; Positioning blocks 6, wherein four positioning blocks 6 are fixedly arranged in a group on four corners of a side wall of the cover plate 3-5 facing the clamping seat 3-1; When the barrel of the raw material is clamped and fixed by the clamping seat 3-1 and the cover plate 3-5, a positioning hole is opened on the side of the port of the barrel containing the raw material, so that after the cover plate 3-5 is buckled on the port of the barrel, the sealing between the cover plate 3-5 and the barrel port is achieved through the sealing side edge 5, and the positioning block 6 is inserted into the positioning hole of the barrel port to achieve the fixing and clamping of the barrel by the clamping seat 3-1 and the cover plate 3-5; A flow guide pipe 7, wherein the flow guide pipe 7 is passed through and fixed on the cover plate 3-5; Solenoid valve 8, the solenoid valve 8 is fixedly arranged in series on the flow guide pipe 7; After the barrel containing the raw materials is fixed by the cover plate 3-5 and the clamping seat 3-1, the mounting seat 2-1 is turned over to drive the barrel to the bottom of the mounting seat 2-1, so that the barrel is inverted, and then the opening and closing of the guide tube 7 is controlled by the solenoid valve 8 to realize the control of the release of the raw materials in the barrel; The clamping mechanism 4 comprises: Support shafts 4-1, the support shafts 4-1 are in two groups and are respectively arranged on the clamping seat 3-1 on the upper and lower sides, and one group of support shafts 4-1 is three and are respectively arranged on the front and rear side walls and the left side wall of the clamping seat 3-1 through bearing rotation; A clamping claw 4-2, wherein the clamping claw 4-2 is fixedly arranged on the supporting shaft 4-1; The worm 4-4 is a group of three worms 4-4, which are screwed through bearings and penetrated on the front and rear side walls and the left side wall of the clamping seat 3-1; A worm wheel 4-3, wherein the worm wheel 4-3 is fixedly arranged on the support shaft 4-1, and the worm 4-4 is meshed with the worm wheel 4-3; A servo motor 9, wherein the servo motor 9 is fixedly arranged on the inner side wall of the clamping seat 3-1; A drive shaft 10, wherein the drive shaft 10 is rotatably mounted on the inner wall of the clamping seat 3-1 through a bearing, and the drive shaft 10 is connected to the output shaft of the motor through a spline transmission; The transmission shaft 11 is integrally formed on the worm 4-4 located on the left side wall of the clamping seat 3-1, and the transmission shaft 11 is screwed on the inner side wall of the clamping seat 3-1 through a bearing; The transmission shaft 11 is connected to the drive shaft 10 via a spur gear set, the drive shaft 10 is connected to one of the front and rear worm gears 4-4 via a bevel gear set, and the transmission shaft 11 is connected to the other of the front and rear worm gears 4-4 via a bevel gear set; A rotating seat 12, wherein the rotating seat 12 is screwed and inserted into the cover plate 3-5 via a bearing; The rotary arms 13 are several and are distributed at equal angles and are rotated on the rotating seat 12 through a rotating shaft, and the rotary arms 13 are arranged on one side of the cover plate 3-5 facing the clamping seat 3-1; A scraper 14, wherein the scraper 14 is fixedly disposed on an end of the rotary arm 13 away from the rotary seat 12; A spline shaft 15, wherein the spline shaft 15 is movably inserted into the rotating seat 12, and a spline guide is provided between the spline shaft 15 and the rotating seat 12; A connecting rod 16, wherein the connecting rod 16 is rotatably mounted on the spline shaft 15 via a rotating shaft, and the other end of the connecting rod 16 is rotatably mounted on the swing arm 13 via a rotating shaft; A connecting seat 17, wherein the connecting seat 17 is rotatably mounted on the spline shaft 15 via a bearing; An opening and closing hydraulic rod 18, wherein the opening and closing hydraulic rod 18 is fixedly arranged on the lifting frame 3-4, and the output shaft of the opening and closing hydraulic rod 18 is fixedly arranged on the connecting seat 17; A stirring motor 19, wherein the stirring motor 19 is fixedly arranged on the lifting frame 3-4; The spline sleeve 20 is fixedly arranged on the output shaft of the stirring motor 19 . A spline groove 21 is formed on the end wall of the spline shaft 15 away from the connecting rod 16 . The spline sleeve 20 is sleeved on the spline shaft 15 through the spline groove 21 .

[0025] When using the device, a barrel filled with raw materials is placed on the clamping seat 3-1, and the barrel is clamped by the cooperation of the cover plate 3-5 and the clamping seat 3-1. The cover plate 3-5 is sealed on the port of the barrel, so that the barrel on the clamping seat 3-1 located on the lower side wall of the mounting seat 2-1 is inverted with the port downward, and the tray for processing vermicelli is inserted into the mold slot, and the solenoid valve 8 of the guide pipe 7 on the lower cover plate 3-5 is opened, so that the raw materials in the barrel on the lower side are poured out and fall into the tray. After the raw materials in the inverted barrel on the lower side are emptied, the mounting seat 2-1 is turned over 180° by the rotary cylinder 2-3, so that the originally fully loaded barrel on the upper side is turned over to the lower side, the emptied barrel is turned over to the upper side, and the empty barrel is replaced; when replacing the empty barrel on the upper clamping seat 3-1, The connecting seat 17 is pushed downward by the opening and closing hydraulic rod 18 on the upper lifting frame 3-4, so that the connecting seat 17 pushes the spline shaft 15 downward, and the spline shaft 15 pulls the swing arm 13 on the upper cover plate 3-5 to rotate downward through the connecting rod 16 so that all the swing arms 13 are closed, and then the upper lifting frame 3-4 is pushed upward by the lifting hydraulic rod 3-3 on the upper support frame 3-2, so that the upper lifting frame 3-4 drives the upper cover plate 3-5 to move upward and detach from the upper port of the empty barrel on the upper side, and makes the swing arm 13 on the upper cover plate 3-5 and the cover plate 3-5 on the swing arm 13 move upward and completely detach from the top of the empty barrel, and then the drive shaft 10 is driven to rotate by the servo motor 9 on the upper clamping seat 3-1, and the drive shaft 10 is driven by the straight The gear set drives the transmission shaft 11 to rotate, thereby the drive shaft 10 and the transmission shaft 11 drive the three worm gears 4-4 on the upper clamping seat 3-1 to rotate, and the worm gear 4-4 drives the support shaft 4-1 to rotate through the meshing worm wheel 4-3, thereby opening the three clamping claws 4-2 on the upper clamping seat 3-1, so that the clamping claws 4-2 loosen the tightened empty barrel, and then replace the barrel filled with raw materials, and then reset the clamping claws 4-2 through the reverse rotation of the servo motor 9, clamp the replaced full barrel on the upper clamping seat 3-1, and drive the cover plate 3-5 to descend through the lifting hydraulic rod 3-3 on the upper support frame 3-2 to cover the upper port of the full barrel, at this time, the sealing side edge 5 on the cover plate 3-5 is sleeved on the port of the barrel, and through the cover plate 3-5 The positioning block 6 is positioned in cooperation with the positioning hole on the side of the barrel, and then the spline shaft 15 is driven to rise by the opening and closing hydraulic rod 18 on the upper lifting frame 3-4, so that the swing arm 13 on the upper cover plate 3-5 is unfolded inside the full barrel on the upper side; after the mounting seat 2-1 is flipped to flip the upper barrel to the lower side, the stirring motor 19 on the lower lifting frame 3-4 drives the spline sleeve 20 on its shaft to rotate, and the spline sleeve 20 drives the spline shaft 15 inserted therein to rotate, so that the spline shaft 15 on the lower side drives the rotating seat 12 on the lower cover plate 3-5 to rotate, so that the rotating seat 12 drives the cantilever and rotates in the inverted barrel on the lower side through the swing arm 13, stirring the raw materials in the barrel to prevent the raw materials from settling and stratifying, thereby ensuring the uniform discharge of the raw materials.

[0026] Compared with the prior art, the present invention has the following beneficial effects: 1. The device has a rotatable mounting seat 2-1, and a clamping seat 3-1 is arranged on both upper and lower side walls of the mounting seat 2-1, and a movable cover plate 3-5 corresponding to the clamping seat 3-1 is arranged, so that two barrels filled with raw materials can be pre-installed. When the lower inverted barrel is normally used for raw material feeding, when the raw materials in the lower barrel are used up, the upper barrel is automatically replaced to continue to supply raw materials, and the empty barrel is turned over to the upper side for replacement; 2. The device is provided with a rotating seat 12 on the cover plate 3-5, and the rotary arm 13 and the scraper 14 are installed through the rotating seat 12, so that when the barrel of the raw material is turned over to the lower side for the supply of the raw material, the scraper 14 can be driven by the rotating seat 12 to stir the raw material in the barrel, so as to keep the raw material uniform and prevent the raw material from being stratified.

[0027] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mold device for automatic material exchange in the production of sweet potato rice noodle skin, comprising a frame (1); characterized in that: It also contains: A mounting mechanism (2), wherein the mounting mechanism (2) is arranged on the frame (1); The clamping mechanism (4) comprises two clamping mechanisms (4) which are symmetrically arranged on the mounting mechanism (2).

2. The automatic material changing mold device for making sweet potato rice noodle skin according to claim 1 is characterized in that: The mounting mechanism (2) comprises: A mounting seat (2-1), wherein the mounting seat (2-1) is arranged inside the frame (1); A turning shaft (2-2), wherein the turning shaft (2-2) is fixedly arranged on the mounting seat (2-1), and the turning shaft (2-2) is rotatably arranged on the frame (1) via a bearing, and the left end of the turning shaft (2-2) is inserted into the frame (1); A rotary cylinder (2-3), wherein the rotary cylinder (2-3) is fixedly arranged on the frame (1), and the output shaft of the rotary cylinder (2-3) is transmission-connected to the left end of the tilting shaft (2-2); A mold guide rail (2-4), wherein the mold guide rail (2-4) is fixedly arranged on the frame (1), and the mold guide rail (2-4) is arranged on the lower side of the mounting seat (2-1); The lifting and limiting components (3) are composed of two groups and are symmetrically arranged on the upper and lower sides of the mounting seat (2-1) in an upside-down manner.

3. The automatic material changing mold device for making sweet potato rice noodle skin according to claim 2 is characterized in that: The lifting and limiting assembly (3) comprises: A clamping seat (3-1), wherein the clamping seats (3-1) are two and are symmetrically arranged vertically and fixedly disposed on the upper and lower side walls of the mounting seat (2-1); Support frames (3-2), wherein the support frames (3-2) are two and are symmetrically arranged on the upper and lower side walls of the mounting seat (2-1), and the support frames (3-2) are arranged on the side of the clamping seat (3-1); A lifting hydraulic rod (3-3), wherein the lifting hydraulic rod (3-3) is fixedly arranged on the support frame (3-2), and an output shaft of the lifting hydraulic rod (3-3) is arranged at an end away from the clamping seat (3-1); A lifting frame (3-4), wherein the lifting frame (3-4) is fixedly arranged on an output shaft of a lifting hydraulic rod (3-3); A cover plate (3-5), wherein the cover plate (3-5) is fixedly arranged on the lifting frame (3-4).

4. The automatic material changing mold device for making sweet potato rice noodle skin according to claim 3 is characterized in that: A sealing side edge (5) is integrally formed on the side of the cover plate (3-5), a positioning block (6) is integrally formed on the wall of the cover plate (3-5) facing the clamping seat (3-1), a flow guide tube (7) is passed through and fixed on the cover plate (3-5), and a solenoid valve (8) is arranged in series on the flow guide tube (7).

5. The automatic material changing mold device for making sweet potato rice noodle skin according to claim 4 is characterized in that: The clamping mechanism (4) comprises: Support shafts (4-1), the support shafts (4-1) are in two groups and are respectively arranged on the clamping seat (3-1) at the upper and lower sides, and one group of support shafts (4-1) is three and are respectively arranged on the front and rear side walls and the left side wall of the clamping seat (3-1) by means of bearings; A clamping claw (4-2), wherein the clamping claw (4-2) is fixedly arranged on the support shaft (4-1); A worm (4-4), wherein three worms (4-4) are grouped together and are screwed through bearings and inserted into the front and rear side walls and the left side wall of the clamping seat (3-1); A worm wheel (4-3), wherein the worm wheel (4-3) is fixedly arranged on the support shaft (4-1), and the worm (4-4) is meshed with the worm wheel (4-3).

6. The automatic material changing mold device for making sweet potato rice noodle skin according to claim 5, characterized in that: A servo motor (9) is fixedly arranged on the inner wall of the clamping seat (3-1), a drive shaft (10) is fixedly arranged on the output shaft of the servo motor (9) via a spline, and the drive shaft (10) is rotatably arranged on the inner wall of the clamping seat (3-1) via a bearing, a transmission shaft (11) is fixedly arranged on the worm (4-4) on the left side wall of the clamping seat (3-1), the drive shaft (10) and the transmission shaft (11) are transmission-connected via a spur gear set, one of the worms (4-4) on the front and rear side walls of the clamping seat (3-1) is transmission-connected to the drive shaft (10) via a bevel gear set, and the other worm (4-4) on the front and rear side walls of the clamping seat (3-1) is transmission-connected to the transmission shaft (11) via a bevel gear set.

7. The automatic material changing mold device for making sweet potato rice noodle skin according to claim 6, characterized in that: A rotating seat (12) is inserted through the cover plate (3-5) and is rotatably mounted via a bearing. A plurality of rotating arms (13) are rotatably mounted on the rotating seat (12) via a rotating shaft. The rotating arms (13) are arranged at equal angles with the circumference of the rotating seat (12) as the center of the circle. A scraper (14) is fixedly mounted on one end of the rotating arm (13) away from the rotating seat (12).

8. The automatic material changing mold device for making sweet potato rice noodle skin according to claim 7, characterized in that: A spline shaft (15) is movably inserted into the rotating seat (12); a connecting rod (16) is rotatably mounted on the end of the spline shaft (15) located on one side of the end wall via a rotating shaft; the other end of the connecting rod (16) is rotatably mounted on the rotating arm (13) via a rotating shaft; a connecting seat (17) is rotatably mounted on the spline shaft (15) via a bearing sleeve; an opening and closing hydraulic rod (18) is fixedly mounted on the lifting frame (3-4); and an output shaft of the opening and closing hydraulic rod (18) is fixedly mounted on the connecting seat (17).

9. The automatic material changing mold device for making sweet potato rice noodle skin according to claim 8, characterized in that: A stirring motor (19) is fixedly arranged on the lifting frame (3-4), a spline sleeve (20) is fixedly arranged on the output shaft of the stirring motor (19), a spline groove (21) is integrally formed on the side wall of the spline shaft (15) at one end away from the connecting rod (16), and the spline shaft (15) is movably inserted into the spline sleeve (20) through the spline groove (21).