A continuous vacuum packaging apparatus for dry food products

Abstract

The present application relates to dry food production and processing technical field, and disclose a kind of dry food continuous vacuum packaging device, including support plate, by using two pairs of light fiber sensor sensing discharging mechanism main body discharging pipe in-place signal, drive motor one start operation, drive gear two meshing transmission, and simultaneously drive gear one and rotating drum rotate, the rotation of rotating drum makes the circular motion of the arc-shaped groove in the top of rotating drum;Under this action, slider slips along polygonal groove, and limit rod along arc-shaped groove slip, the above-mentioned sliding movement further drives six groups of sliding units, synchronously completes circular array radial opening and closing action, while adjacent polygonal plate is limited to be attached through linkage opening and closing and drives bag supporting strip synchronous extension, can realize the automatic opening of bag body feed port by supporting strip, without manual opening and closing bag opening auxiliary operation, also can be folded bag opening after loading, effectively prevent the dry powder dust in bag from drifting and overflowing outside, further improve the degree of automation of device and packaging operation clean.

Description

Technical Field

[0001] This invention relates to the field of dried food production and processing technology, specifically to a continuous vacuum packaging device for dried food. Background Technology

[0002] Vacuum packaging is a key process for extending the shelf life of dried goods, preventing moisture absorption and spoilage, and avoiding oxidation and loss. It is widely used in the packaging and processing of dried goods such as nuts, dried fruits, mushrooms, and grains.

[0003] Existing vacuum packaging equipment for dry food typically requires manual opening of the bag during operation. This is not only labor-intensive and costly, but also results in poor bag uniformity. Furthermore, the bag opening cannot be sealed in time during the filling process, which can easily cause fine dust from the dry food to drift out and spill, polluting the production workshop environment, affecting the cleanliness of the operation, and reducing operational efficiency. Therefore, we have introduced a continuous vacuum packaging equipment for dry food. Summary of the Invention

[0004] This invention provides a continuous vacuum packaging device for dry goods, which solves the technical problems of existing dry goods vacuum packaging equipment, such as manual bag placement, easy wrinkling and dust generation at the bag opening, inability to operate continuously, easy clogging of the air extraction pipeline by dust, need for frequent manual disassembly and cleaning, and low degree of automation.

[0005] This invention provides the following technical solution: a continuous vacuum packaging device for dry food, comprising a support plate, a motor fixedly mounted on the top of the support plate, a turntable fixedly sleeved on the outer edge of the output shaft of the motor, a support frame fixedly mounted on the outer wall of the turntable, a vacuum negative pressure pump fixedly mounted on the top of the turntable, a box body fixedly mounted on the outer wall of the support frame, a discharge mechanism body on the top of the box body, a guide groove I on the top of the box body, a guide groove II on the inner wall of the guide groove I, an opening assembly on the top of the box body, a clamping assembly in the inner cavity of the box body, a mold body II fixedly mounted on the outer wall of the box body, a cylinder mounted on the outer wall of the box body, a sleeved mold body I on the outer wall of the cylinder's telescopic tube, a pipe on the top of the vacuum negative pressure pump, a cleaning assembly in the inner cavity of the pipe, and a pressure relief valve mounted on the outer wall of the mold body II.

[0006] As a preferred embodiment of the present invention: the opening assembly includes a polygonal groove, a circular groove, a multi-faceted plate, a rotating cylinder, a motor, a through-beam fiber optic sensor, a rack, and a bag body. A slider is fixedly installed on the outer wall of the multi-faceted plate, and a limit rod is fixedly installed on the outer wall of the end of the multi-faceted plate away from the slider. An arc-shaped groove is opened at the top of the rotating cylinder, and a gear is fixedly sleeved on the outer wall of the rotating cylinder. A gear is fixedly sleeved on the outer edge of the output shaft of the motor. One end of an L-shaped connecting rod is fixedly installed at the bottom of the rack, and a sliding groove is opened on the inner wall of the end of the L-shaped connecting rod away from the rack. A clamping plate is provided at the bottom of the end of the L-shaped connecting rod away from the rack, and a spring is provided on the outer wall of the L-shaped connecting rod. A ball bearing is installed on the outer wall of the clamping plate. A bag support strip is fixedly installed on the outer wall of the multi-faceted plate.

[0007] As a preferred embodiment of the present invention: the outer wall of the slider is slidably fitted against the inner wall of the polygonal groove formed on the top of the box body; the outer wall of the limiting rod is slidably fitted against the inner wall of the arc-shaped groove; there are six polygonal plates, sliders, limiting rods, arc-shaped grooves, and bag-supporting strips; each polygonal plate, slider, limiting rod, arc-shaped groove, and bag-supporting strip forms a sliding unit; the six sliding units are arranged in a circular array; the outer walls of two adjacent polygonal plates of each polygonal plate are slidably fitted against each other; the circular groove is formed in the box body. The top of the box has a circular groove that runs through the inner cavity of the box. The rotating drum is rotatably connected to the top of the box. The first motor is fixedly installed on the top of the box. The outer edge of the second gear meshes with the outer edge of the first gear. The end of the bag support strip away from the multi-deformation plate extends to the inlet of the bag in the inner cavity of the box. There are two through-beam fiber optic sensors, which correspond to the transmitting end and the receiving end, respectively. The two through-beam fiber optic sensors are symmetrically arranged with the first gear as the center. The two through-beam fiber optic sensors are electrically connected to the first motor.

[0008] As a preferred embodiment of the present invention: the number of balls is several, and the balls are arranged in a rectangular array. The top of the clamping plate one is slidably fitted against the inner wall of the slide groove. There are two racks, two guide grooves one, and two guide grooves two in total. Each rack, guide groove one, and guide groove two forms a transmission unit. The two transmission units are symmetrically arranged with gear one as the center. The outer edge of gear one meshes with the outer edge of one rack, and the other outer edge of gear one meshes with the outer edge of the other rack. One end of the spring is connected to the outer wall of the L-shaped connecting rod, and the other end of the spring is connected to the outer wall of the clamping plate. There are four L-shaped connecting rods, four sliding grooves, four clamping plates, four balls, and four springs. Each L-shaped connecting rod, sliding groove, four clamping plates, four balls, and four springs forms a single-sided clamping unit. The four single-sided clamping units are arranged symmetrically in pairs around the bag body. The bottom of the rack is in contact with the inner wall of the guide groove and slides. The outer wall of the L-shaped connecting rod is in contact with the inner wall of the guide groove.

[0009] As a preferred embodiment of the present invention: the clamping assembly includes a clamping plate 2 and a guide groove 3, the inner wall of the clamping plate 2 is provided with a heating wire, and the outer wall of the clamping plate 2 is provided with a spring 2.

[0010] As a preferred technical solution of the present invention: there are two of each of the clamping plate 2, heating wire, guide groove 3 and spring 2, and the two clamping plates 2, heating wire, guide groove 3 and spring 2 are respectively arranged on both sides of the inner wall of the box. The outer walls of the two clamping plates 2 are slidably fitted to the inner wall of the guide groove 3 opened in the inner wall of the box. One end of the spring 2 overlaps with the outer wall of the clamping plate 2, and the outer wall of the other end of the spring 2 overlaps with the inner wall of the guide groove 3.

[0011] As a preferred embodiment of the present invention: the cleaning assembly includes a corrugated telescopic tube, a sealed air chamber, a filter plate, a skirt plate, and a second motor. A one-way valve is installed on the outer wall of the corrugated telescopic tube. An air pipe is provided on the outer wall of the end of the corrugated telescopic tube away from the cleaning assembly. A one-way valve is installed on the inner wall of the air pipe. An air pipe is installed on the outer wall of the sealed air chamber. A solenoid valve is installed on the outer wall of the air pipe. A one-way tube is fixedly sleeved on the inner wall of the filter plate. An air outlet is fixedly sleeved on the inner wall of the one-way tube. An air outlet pipe is fixedly sleeved on the outer edge of the skirt plate. A ball head is rotatably connected to the center end of the skirt plate away from the air outlet pipe. A gear ring is fixedly sleeved on the outer wall of the ball head. A gear is fixedly sleeved on the outer edge of the output shaft of the second motor.

[0012] As a preferred embodiment of the present invention: one end of the corrugated telescopic tube is fixedly installed on the outer wall of the first mold body, and the other end of the corrugated telescopic tube is fixedly installed on the outer wall of the second mold body. The first one-way valve is connected to the air inlet end of the corrugated telescopic tube. One end of the first air pipe is connected to the air outlet end of the corrugated telescopic tube, and the other end of the first air pipe is connected to the air inlet end of the sealed air chamber installed on the outer wall of the second mold body. One end of the second air pipe is connected to the air outlet end of the sealed air chamber, and the other end of the second air pipe passes through the inner wall of the second mold body and the pipe and is connected to the air inlet end of the one-way valve.

[0013] As a preferred embodiment of the present invention: the filter plate is fixedly assembled at the air inlet end of the pipe, the skirt piece is fixedly installed on the inner wall of the pipe, the motor is installed on the inner wall of the pipe, the inner wall of the ball head has a through hole, and the through hole passes through the inner cavity of the ball head and is correspondingly set to the opening end of the one-way pipe, the shape of the air outlet is conical, and the flared end of the conical shape of the air outlet is located at the air outlet end of the one-way pipe, and the conical conical constricted end of the air outlet is correspondingly set to the spherical surface of the ball head, the diameter of the ball head is larger than the diameter of the opening of the one-way pipe, the outer wall of the skirt piece is provided with an arc surface, and one end of the arc surface of the skirt piece is in contact with the outer wall of the ball head, and the other end of the arc surface of the skirt piece is connected and fixed to the inner wall of the air outlet pipe, the shape of the air outlet pipe is conical, and the conical constricted end of the air outlet pipe is correspondingly set to the inner end of the filter plate, the outer edge of the gear three meshes with the outer edge of the gear ring, and the rotation angle between the ball head and the skirt piece is ninety degrees.

[0014] As a preferred technical solution of the present invention: one end of the pipe is connected to the air inlet of the vacuum negative pressure pump, and the other end of the pipe is connected to the air outlet of the second mold body. The inner wall of the first mold body is slidably fitted to the outer wall of the box body. The outer wall of the first mold body and the outer wall of the second mold body fit together to form a sealed box body. The box body, guide groove one, guide groove two, opening assembly and clamping assembly are located in the inner cavity of the sealed box body.

[0015] The present invention has the following beneficial effects:

[0016] 1. This continuous vacuum packaging device for dry food utilizes two through-beam fiber optic sensors to sense the arrival signal of the discharge pipe of the main body of the discharge mechanism, driving motor one to start running, which in turn drives gear two to mesh and drive the rotation of gear one and the rotating drum. The rotation of the drum causes the arc-shaped groove at the top of the drum to generate circumferential motion. Under this action, the slider slides along the polygonal groove, and the limiting rod slides along the arc-shaped groove. The above sliding motion then drives six sets of sliding units to synchronously complete the radial opening and closing action of the circular array. At the same time, the adjacent polygonal plates adhere and limit each other, and through linkage opening and closing, drive the bag support strip to extend synchronously. This can realize the automatic opening of the bag inlet by the support strip, eliminating the need for manual opening and closing of the bag mouth. After the filling is completed, the bag mouth can be automatically closed, effectively preventing the dry goods dust inside the bag from floating out and overflowing, further improving the automation level of the device and the cleanliness of the packaging operation.

[0017] 2. This continuous vacuum packaging device for dry food utilizes a rotating gear to drive meshing racks on both sides, causing the racks to slide relative to each other along the inner wall of guide groove one. Simultaneously, an L-shaped connecting rod moves along the inner wall of guide groove two, moving clamping plate one and allowing its top to adaptively slide along a groove. Combined with the elastic clamping action of spring one, clamping plate one remains tightly fitted to the edge of the bag opening, thereby driving the synchronous rolling of a rectangular array of ball bearings. This reduces sliding resistance and smooths out wrinkles at the bag opening, preventing damage or unevenness and ensuring a flat and smooth bag opening. Furthermore, four symmetrically coordinated single-sided clamping units work in pairs to smooth both sides of the bag, achieving a precisely aligned bag opening. This meets the requirements of subsequent mold closing, vacuuming, and vacuum heat sealing processes, further improving packaging efficiency and the reliability of the bag opening seal.

[0018] 3. This continuous vacuum packaging device for dry food utilizes a corrugated telescopic tube, with one end fixed to the outer wall of mold body one and the other end fixed to the outer wall of mold body two. When mold body one slides along the outer wall of the box towards mold body two under the push of the cylinder's telescopic end, mold body one compresses one end of the corrugated telescopic tube. This compression causes the gas inside the corrugated telescopic tube to be transported through air pipe one and one-way valve two to the inner cavity of the sealed air chamber installed on the outer wall of mold body two for storage. Subsequently, when cleaning is required at the air inlet end of the pipe, the solenoid valve installed on the outer wall of air pipe two is activated. Because the air pressure inside the sealed air chamber is relatively high, the gas will automatically be transported through air pipe two to the inner cavity of the one-way tube for the next process. Secondly, when mold one separates from mold two, mold one will cause the corrugated telescopic tube to extend. At this time, the inner cavity of the corrugated telescopic tube will generate negative pressure in the extended state. The one-way valve one installed at the air inlet end of the corrugated telescopic tube will open when the negative pressure threshold of the inner cavity of the corrugated telescopic tube is reached. At this time, the gas outside the corrugated telescopic tube will enter the inner cavity of the corrugated telescopic tube through one-way valve one, thereby balancing the pressure in the inner cavity and realizing air intake, thereby saving energy consumption and reducing the operating cost of the device.

[0019] 4. This continuous vacuum packaging device for dry goods uses a filter plate fixedly mounted on the air inlet of the pipeline. When the vacuum negative pressure pump draws a vacuum, it intercepts the dust of the dry goods in the airflow, effectively filtering out impurities. The ball head through hole is aligned with the one-way pipe opening, and the second motor drives the third gear to rotate, causing the gear ring and the ball head to rotate 90 degrees, thus ensuring the smooth flow of vacuum air. At the same time, during backflushing and dust removal, the second motor drives the ball head to reset in the opposite direction. Simultaneously, after the solenoid valve opens, it uses the sealed air chamber to deliver high-pressure airflow, which is then concentrated and pressurized through the conical air outlet. This allows the airflow to impact the spherical surface of the ball head and diffuse in a ring. Then, relying on the sealed and directional guidance of the skirt edge arc surface, it is pressurized again through the conical air outlet pipe and sprayed directionally onto the inside of the filter plate. This satisfies the requirement for automatic backflushing and removal of dust and impurities on the filter plate surface, eliminating the need for manual disassembly and cleaning. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure on the other side of the present invention;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the box structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the opening component structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the sliding flattening structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the sliding compressed gas driven structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the backflushing cleaning structure of the present invention;

[0028] Figure 9 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0029] Figure 10 For the present invention Figure 8 Enlarged structural diagram at point B.

[0030] In the diagram: 1. Support plate; 2. Motor; 3. Turntable; 4. Support frame; 5. Vacuum negative pressure pump; 6. Box body; 7. Guide groove one; 8. Guide groove two; 9. Opening assembly; 10. Clamping assembly; 11. Mold body one; 12. Mold body two; 13. Cylinder; 14. Cleaning assembly; 15. Pressure relief valve; 16. Pipeline; 17. Main body of the discharge mechanism;

[0031] 91. Polygonal groove; 92. Circular groove; 93. Polymorphic plate; 94. Slider; 95. Limiting rod; 96. Rotary cylinder; 97. Arc groove; 98. Gear 1; 99. Motor 1; 910. Gear 2; 911. Through-beam fiber optic sensor; 912. Rack; 913. L-shaped connecting rod; 914. Slide groove; 915. Clamping plate 1; 916. Ball bearing; 917. Spring 1; 918. Bag support strip; 919. Bag body;

[0032] 101. Clamping plate two; 102. Heating wire; 103. Guide groove three; 104. Spring two;

[0033] 141. Corrugated telescopic tube; 142. One-way valve 1; 143. Air pipe 1; 144. One-way valve 2; 145. Sealed air chamber; 146. Air pipe 2; 147. Solenoid valve; 148. Filter plate; 149. One-way pipe; 1410. Air outlet; 1411. Skirt plate; 1412. Air outlet pipe; 1413. Ball head; 1414. Gear ring; 1415. Motor 2; 1416. Gear 3. Detailed Implementation

[0034] 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. 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.

[0035] Please see Figure 1 - Figure 10 A continuous vacuum packaging device for dry food includes a support plate 1, a motor 2 fixedly installed on the top of the support plate 1, a turntable 3 fixedly sleeved on the outer edge of the output shaft of the motor 2, a support frame 4 fixedly mounted on the outer wall of the turntable 3, a vacuum negative pressure pump 5 fixedly installed on the top of the turntable 3, a box body 6 fixedly installed on the outer wall of the support frame 4, a discharge mechanism body 17 provided on the top of the box body 6, a guide groove 7 opened on the top of the box body 6, a guide groove 8 opened on the inner wall of the guide groove 7, an opening component 9 provided on the top of the box body 6, a clamping component 10 provided in the inner cavity of the box body 6, a mold body 12 fixedly installed on the outer wall of the box body 6, a cylinder 13 installed on the outer wall of the box body 6, a mold body 11 sleeved on the outer wall of the box body 6 installed on the telescopic tube of the cylinder 13, a pipe 16 provided on the top of the vacuum negative pressure pump 5, a cleaning component 14 provided in the inner cavity of the pipe 16, and a pressure relief valve 15 installed on the outer wall of the mold body 12.

[0036] In the above structure, the motor 2 is fixedly installed on the top of the support plate 1, and its output shaft drives the turntable 3 to rotate. The turntable 3 synchronously drives the support frame 4 fixed on the outer wall and the vacuum negative pressure pump 5 fixed on the top to rotate accordingly. The support frame 4 provides firm support for the box body 6, so that the box body 6 rotates synchronously with the turntable 3. In conjunction with the main body 17 of the discharge mechanism, it conveys dry goods to the bag body 919 in the inner cavity of the box body 6, realizing the sequential linkage of continuous feeding and packaging.

[0037] In a preferred embodiment: the opening assembly 9 includes a polygonal groove 91, a circular groove 92, a multi-faceted plate 93, a rotating cylinder 96, a motor 99, a through-beam fiber optic sensor 911, a rack 912, and a bag body 919. A slider 94 is fixedly installed on the outer wall of the multi-faceted plate 93, and a limit rod 95 is fixedly installed on the outer wall of the end of the multi-faceted plate 93 away from the slider 94. An arc-shaped groove 97 is opened on the top of the rotating cylinder 96, and a gear 98 is fixedly sleeved on the outer wall of the rotating cylinder 96. The motor 99... Gear 2 910 is fixedly sleeved on the outer edge of the output shaft of 9. One end of L-shaped connecting rod 913 is fixedly installed at the bottom of rack 912. A groove 914 is opened on the inner wall of the end of L-shaped connecting rod 913 away from rack 912. A clamping plate 915 is provided at the bottom of the end of L-shaped connecting rod 913 away from rack 912. A spring 917 is provided on the outer wall of L-shaped connecting rod 913. A ball bearing 916 is installed on the outer wall of clamping plate 915. A support strip 918 is fixedly installed on the outer wall of multi-deformation plate 93.

[0038] In a preferred embodiment: the outer wall of the slider 94 is slidably fitted against the inner wall of the polygonal groove 91 formed on the top of the box body 6; the outer wall of the limiting rod 95 is slidably fitted against the inner wall of the arc-shaped groove 97; there are six polygonal plates 93, six sliders 94, six limiting rods 95, six arc-shaped grooves 97, and six bag-supporting strips 918; each polygonal plate 93, slider 94, limiting rod 95, arc-shaped groove 97, and bag-supporting strip 918 forms a sliding unit; the six sliding units are arranged in a circular array; the outer walls of two adjacent polygonal plates 93 are slidably fitted against each other; and the circular groove 92 is formed on the top of the box body 6. The circular groove 92 penetrates the inner cavity of the box body 6. The rotating cylinder 96 is rotatably connected to the top of the box body 6. The motor 99 is fixedly installed on the top of the box body 6. The outer edge of the gear 910 meshes with the outer edge of the gear 98. The end of the bag support strip 918 away from the multi-deformation plate 93 extends to the inlet of the bag body 919 in the inner cavity of the box body 6. There are two through-beam fiber optic sensors 911, and the two through-beam fiber optic sensors 911 correspond to the transmitting end and the receiving end, respectively. The two through-beam fiber optic sensors 911 are symmetrically arranged with the gear 98 as the center. The two through-beam fiber optic sensors 911 are electrically connected to the motor 99, respectively.

[0039] In the above structure, the slider 94 slides along the inner wall of the polygonal groove 91 on the top of the box 6 to limit and guide the movement trajectory of the polygonal plate 93. The limiting rod 95 slides along the inner wall of the arc groove 97. Utilizing the change in the trajectory of the arc groove 97 when the rotating cylinder 96 rotates, it synchronously drives six sets of sliding units composed of polygonal plates 93, sliders 94, limiting rods 95, arc grooves 97, and support strips 918 to perform a circular array-style synchronous radial opening and closing motion. The outer walls of adjacent polygonal plates 93 slide against each other. The circular groove 92 is opened on the top of the box 6 and penetrates the inner cavity of the box 6. The rotating cylinder 96 is rotatably mounted on the top of the box 6. The motor 99 is fixedly installed on the top of the box 6. The gear 910 and... Gears 98 mesh with each other to provide rotational power to the rotating drum 96; the bag support strip 918 extends to the inlet position of the bag 919 inside the box 6 along with the movement of the polygonal plate 93, realizing the opening and shaping of the inlet of the bag 919; two through-beam fiber optic sensors 911 are symmetrically arranged around gears 98 and are divided into a transmitting end and a receiving end, and the through-beam fiber optic sensors 911 and motor 99 are electrically linked, which can sense the signal of the discharge pipe of the main body 17 of the discharge mechanism in real time, control the start and stop of the motor 99, and thus regulate the timing of the opening and resetting of the bag opening, so that the bag opening of the bag 919 is open when it needs to be filled and closed when it is not needed, thereby preventing the material in the bag from escaping dust.

[0040] In a preferred embodiment: there are several balls 916 arranged in a rectangular array; the top of the clamping plate 915 slides against the inner wall of the groove 914; there are two racks 912, two guide grooves 7, and two guide grooves 8; each rack 912, guide groove 7, and guide groove 8 forms a transmission unit; the two transmission units are symmetrically arranged with gear 98 as the center; the outer edge of gear 98 meshes with the outer edge of one rack 912, and the other outer edge of gear 98 meshes with the outer edge of the other rack 912; one end of the spring 917 is connected to the L-shaped connector. The outer walls of rod 913 overlap, and the other end of spring 917 overlaps with the outer wall of clamping plate 915. There are four L-shaped connecting rods 913, slide grooves 914, clamping plates 915, ball bearings 916, and springs 917. Each L-shaped connecting rod 913, slide groove 914, clamping plate 915, ball bearings 916, and spring 917 forms a single-sided clamping unit. The four single-sided clamping units are symmetrically arranged in pairs around the bag body 919. The bottom of rack 912 is in contact with the inner wall of guide groove 7 and slides. The outer wall of L-shaped connecting rod 913 is in contact with the inner wall of guide groove 8 and slides.

[0041] In the above structure, the gear 98 drives the meshing racks 912 on both sides to slide relative to each other along the inner wall of the guide groove 7. The sliding racks 912 simultaneously drive the L-shaped connecting rod 913 to move relative to each other along the inner wall of the guide groove 8. During the displacement of the L-shaped connecting rod 913, the clamping plate 915 moves along with it. The top of the clamping plate 915 slides along the inner wall of the slide groove 914 to adjust its position adaptively. With the elastic pressing action of the spring 917, the clamping plate 915 is always in contact with the edge of the bag opening of the bag body 919. Several balls 916 arranged in a rectangular array move synchronously with the clamping plate 915. The rolling action reduces the sliding resistance between the clamping plate 915 and the bag opening, and during the relative displacement of the clamping plate 915, it can also smooth and flatten the edge of the bag opening of the bag body 919, while scraping off starch dust and dry goods residue attached to the bag opening. The four single-sided clamping units, consisting of L-shaped connecting rods 913, sliding grooves 914, clamping plates 915, ball bearings 916, and springs 917, work symmetrically in pairs to simultaneously complete the clamping and smoothing of the bag opening from both sides of the bag body 919, keeping the bag opening flat and smooth, providing a reliable foundation for subsequent mold closing, vacuuming, and heat sealing processes under vacuum conditions.

[0042] In a preferred embodiment: the clamping assembly 10 includes a clamping plate 2 101 and a guide groove 3 103. The inner wall of the clamping plate 2 101 is provided with a heating wire 102, and the outer wall of the clamping plate 2 101 is provided with a spring 2 104.

[0043] In a preferred embodiment: there are two clamping plates 101, two heating wires 102, two guide grooves 103 and two springs 104, and the two clamping plates 101, two heating wires 102, two guide grooves 103 and two springs 104 are respectively arranged on both sides of the inner wall of the box body 6. The outer walls of the two clamping plates 101 are slidably fitted to the inner wall of the guide grooves 103 opened in the inner wall of the box body 6. One end of the spring 104 overlaps with the outer wall of the clamping plate 101, and the outer wall of the other end of the spring 104 overlaps with the inner wall of the guide grooves 103.

[0044] In the above structure, two sets of clamping plates 101, heating wires 102, guide grooves 103, and springs 104 are symmetrically arranged on both sides of the inner wall of the box 6. The outer wall of the clamping plates 101 slides along the inner wall of the guide grooves 103, allowing the clamping plates 101 to move towards each other and away from each other. One end of the spring 104 rests on the outer wall of the clamping plates 101, and the other end rests on the inner wall of the guide grooves 103. Relying on the elastic force of the springs 104, the clamping plates 101 can be clamped together. The bag body 919 is held in a compressed state to accommodate bags of different thicknesses. After heat sealing, the clamping plate 101 automatically resets and disengages from the bag opening. The clamping plates 101 on both sides move towards each other synchronously to clamp and fit the flattened bag body 919. With the heating wire 102 heating up, the bag opening is heat-sealed in the vacuum chamber formed by the mold. After heat sealing, the clamping plate 101 slides back to its original position along the guide groove 103 under the action of the spring 104, realizing a continuous cycle of clamping heat sealing and automatic reset.

[0045] In a preferred embodiment: the cleaning assembly 14 includes a corrugated telescopic tube 141, a sealed air chamber 145, a filter plate 148, a skirt plate 1411, and a second motor 1415. A one-way valve 142 is installed on the outer wall of the corrugated telescopic tube 141. An air pipe 143 is provided on the outer wall of the end of the corrugated telescopic tube 141 away from the cleaning assembly 14. A one-way valve 144 is installed on the inner wall of the air pipe 143. An air pipe 146 is installed on the outer wall of the sealed air chamber 145. A solenoid valve 147 is installed on the outer wall of the filter plate 148. A one-way pipe 149 is fixedly sleeved on the inner wall of the one-way pipe 149. An air outlet 1410 is fixedly sleeved on the inner wall of the one-way pipe 149. An air outlet pipe 1412 is fixedly sleeved on the outer edge of the skirt plate 1411. A ball head 1413 is rotatably connected to the center end of the skirt plate 1411 away from the air outlet pipe 1412. A gear ring 1414 is fixedly sleeved on the outer wall of the ball head 1413. A gear 1416 is fixedly sleeved on the outer edge of the output shaft of the second motor 1415.

[0046] In a preferred embodiment: one end of the corrugated telescopic tube 141 is fixedly installed on the outer wall of the first mold body 11, and the other end of the corrugated telescopic tube 141 is fixedly installed on the outer wall of the second mold body 12. The one-way valve 142 is connected to the air inlet end of the corrugated telescopic tube 141. One end of the air pipe 143 is connected to the air outlet end of the corrugated telescopic tube 141, and the other end of the air pipe 143 is connected to the air inlet end of the sealed air chamber 145 installed on the outer wall of the second mold body 12. One end of the air pipe 146 is connected to the air outlet end of the sealed air chamber 145, and the other end of the air pipe 146 passes through the inner wall of the second mold body 12 and the pipe 16 and is connected to the air inlet end of the one-way pipe 149.

[0047] In the above structure, one end of the corrugated telescopic tube 141 is fixedly installed on the outer wall of mold body 11, and the other end is fixedly installed on the outer wall of mold body 2 12. When mold body 11 slides along the outer wall of box body 6 towards mold body 2 12 under the push of the telescopic end of cylinder 13, mold body 11 will drive one end of the corrugated telescopic tube 141 to compress. Under compression, the gas in the inner cavity of the corrugated telescopic tube 141 will be transported through air pipe 143 and one-way valve 2 144 to the inner cavity of the sealed air chamber 145 installed on the outer wall of mold body 2 12 to form storage. Subsequently, when the air inlet end of pipe 16 needs to be cleaned, it will activate the solenoid valve 147 installed on the outer wall of air pipe 2 146. Due to the high air pressure in the inner cavity of the sealed air chamber 145, the gas will automatically pass through air pipe 2 146. 46 is conveyed to the inner cavity of the one-way tube 149 for the next process; next, when the first mold 11 separates from the second mold 12, the first mold 11 will drive the corrugated telescopic tube 141 to extend. At this time, the inner cavity of the corrugated telescopic tube 141 will generate negative pressure in the extended state, causing the one-way valve 142 installed at the air inlet end of the corrugated telescopic tube 141 to open under the threshold of negative pressure in the inner cavity of the corrugated telescopic tube 141. At this time, the external gas of the corrugated telescopic tube 141 will enter the inner cavity of the corrugated telescopic tube 141 through the one-way valve 142, thereby balancing the pressure in the inner cavity, thus realizing air intake, thereby saving energy consumption and reducing the cost of using the device.

[0048] In a preferred embodiment: the filter plate 148 is fixedly assembled to the air inlet end of the pipe 16, the skirt plate 1411 is fixedly installed on the inner wall of the pipe 16, the motor 1415 is installed on the inner wall of the pipe 16, the inner wall of the ball head 1413 has a through hole, and the through hole penetrates the inner cavity of the ball head 1413 and is correspondingly arranged to the opening end of the one-way pipe 149, the air outlet 1410 is conical in shape, and the conical flared end of the air outlet 1410 is located at the air outlet end of the one-way pipe 149, and the conical constricted end of the air outlet 1410 is correspondingly arranged to the spherical surface of the ball head 1413. The diameter of 1413 is larger than the opening diameter of the one-way tube 149. The outer wall of the skirt piece 1411 is provided with an arc surface, and one end of the arc surface of the skirt piece 1411 is in contact with the outer wall of the ball head 1413. The other end of the arc surface of the skirt piece 1411 is connected and fixed to the inner wall of the air outlet pipe 1412. The shape of the air outlet pipe 1412 is conical, and the conical end of the air outlet pipe 1412 is correspondingly provided with the inner end of the filter plate 148. The outer edge of the gear 3 1416 meshes with the outer edge of the gear ring 1414. The rotation angle between the ball head 1413 and the skirt piece 1411 is ninety degrees.

[0049] In the above structure, the filter plate 148 is fixedly mounted to the air inlet end of the pipe 16. When the vacuum negative pressure pump 5 draws a vacuum through the pipe 16 to the sealed box formed by the mold body 12 and the mold body 11, it can intercept and filter the dry dust carried in the airflow, preventing impurities from entering the pipe 16 and causing blockage. The skirt piece 1411 is fixedly installed on the inner wall of the pipe 16, and the motor 1415 is fixedly installed on the inner wall of the pipe 16, providing an installation reference for the overall transmission and airflow guidance. The inner wall of the ball head 1413 has a through hole, which can be set to correspond to the opening end of the one-way pipe 149. When the vacuum negative pressure pump 5 performs vacuum extraction, the motor 1415 is started, so that the outer edge of the output shaft of the motor 1415 drives the gear 1416 to rotate. The meshing of gear 1416 drives the gear ring 1414 to rotate synchronously, which in turn drives the ball head 1413 to rotate 90 degrees relative to the skirt plate 1411. This causes the through hole on the inner wall of the ball head 1413 to rotate and align with the opening end of the one-way pipe 149, allowing the air in the sealed box to flow smoothly to the vacuum negative pressure pump 5 through the pipe 16, filter plate 148, and the through hole of the ball head 1413, ensuring unobstructed vacuum extraction air path. When vacuum extraction is completed and backflushing dust removal of the filter plate 148 is required, motor 1415 is restarted to drive gear 1416 to rotate in the opposite direction, causing gear 1416 to synchronously drive the gear ring 1414 to rotate in the opposite direction. Subsequently, the ball head 1413 returns to its original position. After the ball head 1413 changes position and cuts off the vacuum extraction passage, the control system connects... Upon receiving the valve position signal, the solenoid valve 147 on the outer wall of the second air pipe 146 is opened, allowing the high-pressure gas in the sealed air chamber 145 to be transported through the second air pipe 146 to the inner cavity of the one-way pipe 149. The gas in the one-way pipe 149 is first gathered and pressurized through the conical outlet nozzle 1410. Because the conical end of the outlet nozzle 1410 corresponds to the spherical surface of the ball head 1413, and the diameter of the ball head 1413 is larger than the opening diameter of the one-way pipe 149, the high-pressure airflow ejected from the concave end of the outlet nozzle 1410 directly impacts the smooth spherical surface of the ball head 1413, preventing it from penetrating directly. The high-pressure airflow is evenly dispersed in all directions by the obstruction of the spherical surface, forming a ring-shaped diffused airflow. Simultaneously, the skirt piece 1411 is fixedly installed... Installed on the inner wall of pipe 16, the arc surface of its outer wall is closely fitted with the spherical surface of ball head 1413, forming a closed airflow guiding channel. The dispersed airflow cannot leak in the gap between ball head 1413 and skirt plate 1411, and can only turn along the arc surface of skirt plate 1411. Because the arc surface of skirt plate 1411 is set with a curved surface adapted to the airflow diffusion trajectory, and one end of the arc surface is fitted with the spherical surface of ball head 1413 and the other end is fixedly connected to the inner wall of air outlet pipe 1412, a continuous guiding path is formed from the spherical surface of ball head 1413 to the inner cavity of air outlet pipe 1412. Under the action of pressure difference, the airflow will naturally turn along the curvature of the arc surface, and the dispersed annular airflow will converge into directional airflow, and finally flow along the inner wall of air outlet pipe 1412.The exhaust pipe 1412 is conical in shape, with its flared end connecting to the arc surface of the skirt piece 1411 and its constricted end corresponding to the inner end of the filter plate 148. This design further concentrates and pressurizes the airflow after it has turned, allowing the airflow to be sprayed in a concentrated, high-pressure state from the constricted end of the exhaust pipe 1412 onto the inner surface of the filter plate 148. This blows away the dust and impurities trapped on the surface of the filter plate 148, achieving backflushing cleaning of the filter plate 148, preventing clogging of the pores of the filter plate 148, and continuously ensuring smooth vacuum extraction in the pipe 16.

[0050] In a preferred embodiment: one end of pipe 16 is connected to the air inlet of vacuum negative pressure pump 5, and the other end of pipe 16 is connected to the air outlet of mold body 2 12. The inner wall of mold body 11 is slidably fitted against the outer wall of box body 6. The outer wall of mold body 11 and the outer wall of mold body 2 12 fit together to form a sealed box. Box body 6, guide groove 1 7, guide groove 2 8, opening assembly 9 and clamping assembly 10 are located in the inner cavity of the sealed box.

[0051] In the above structure, one end of the pipe 16 is connected to the air inlet of the vacuum negative pressure pump 5, and the other end is connected to the air outlet of the second mold 12, forming a complete negative pressure extraction passage, so that the vacuum negative pressure pump 5 can continuously extract gas through the pipe 16; the inner wall of the first mold 11 and the outer wall of the box 6 are fitted and slidably arranged, so that the first mold 11 can slide smoothly along the outer wall of the box 6. After the first mold 11 slides into place, it fits tightly with the outer wall of the second mold 12, together forming a sealed box; the box 6, guide groove 1 7, guide groove 2 8, opening assembly 9 and clamping assembly 10 are arranged as a whole inside the inner cavity of the sealed box, so that all the working structures such as bag body 919 opening, bag mouth smoothing, clamping and heat sealing are in the sealed space of the sealed box, and the vacuum negative pressure pump 5 can uniformly extract negative pressure inside the sealed box when it is working.

[0052] Working principle: First, by pushing the two clamping plates 101 back to back, they slide opposite each other along the inner wall of the guide groove 103, compressing the spring 104 during the sliding process. Then, the upper part of the bag body 919 is placed at a predetermined position at the bottom of the inner wall of the box body 6. Next, the two clamping plates 101 are released, allowing them to slide back to their original positions relative to each other along the inner wall of the guide groove 103 under the elastic rebound of the spring 104, thereby centering and clamping the upper part of the bag body 919 in place. After the limit is fixed, during the subsequent material loading process, two through-beam fiber optic sensors 911 are symmetrically arranged around gear 1 98, serving as the transmitter and receiver respectively, and electrically connected to motor 1 99. They can sense the arrival signal of the discharge pipe of the main body 17 of the discharge mechanism in real time. After the discharge end of the main body 17 of the discharge mechanism is in place, motor 1 99 starts to run, and its output shaft drives gear 2 910 to rotate. Gear 2 910 meshes and drives gear 1 98 and the rotating drum 96 to rotate synchronously. The arc-shaped groove 911 on the top of the rotating drum 96 7. Subsequently, it performs a circular trajectory motion; the slider 94 slides along the inner wall of the polygonal groove 91 at the top of the box 6, limiting the movement trajectory of the polygonal plate 93; the limiting rod 95 slides along the inner wall of the arc groove 97, following the trajectory of the arc groove 97 to generate displacement, thereby synchronously driving six sets of sliding units composed of polygonal plates 93, sliders 94, limiting rods 95, arc grooves 97 and support strips 918 to perform a circular array radial opening and closing motion; the outer walls of adjacent polygonal plates 93 slide against each other. The movement of each sliding unit is synchronized, and the circular groove 92 passes through the top of the box body 6 and the inner cavity, so that the discharge pipe of the main body 17 of the discharge mechanism enters the bag opening of the bag body 919 through the circular groove 92; the bag support strip 918 extends radially with the polygonal plate and the multi-deformation plate 93, and extends to the inlet position of the bag body 919 in the inner cavity of the box body 6, so as to evenly open and shape the bag opening at the upper end of the bag body 919; thus realizing that the bag opening of the bag body 919 automatically opens when the material is filled and automatically closes after the material is filled, effectively preventing the dry goods dust inside the bag from drifting out and overflowing;

[0053] As the bag opening opens, gear 98 rotates and meshes with symmetrically arranged racks 912 on both sides, causing the two racks 912 to slide relative to each other along the inner wall of guide groove 7. Simultaneously, the sliding racks 912 drive L-shaped connecting rods 913 to move towards each other along the inner wall of guide groove 8. During the displacement of L-shaped connecting rods 913, clamping plates 915 move along with them. The top of clamping plates 915 slides against the inner wall of sliding groove 914. Combined with the elastic pressure generated by the springs 917 at both ends overlapping the outer walls of L-shaped connecting rods 913 and clamping plates 915, clamping plates 915 remain in contact with the edge of the bag opening of bag body 919. The outer walls of clamping plates 915 are arranged in a rectangular array. Several ball bearings 916 roll synchronously with clamping plate 915, reducing the sliding friction between clamping plate 915 and bag opening 919 and preventing scratches on the packaging bag 919. During the alignment and movement of clamping plate 915, the edge of bag opening 919 is smoothed and stretched, smoothing out the wrinkles at the bag opening, and scraping off the dry goods debris and dust attached to the bag opening. Four single-sided clamping units, consisting of L-shaped connecting rods 913, sliding grooves 914, clamping plate 915, ball bearings 916, and springs 917, are symmetrically grouped in pairs around bag 919, and simultaneously smooth and flatten the bag opening from the side of bag 919, keeping the bag opening flat and stretched, providing qualified working conditions for subsequent mold closing and sealing, negative pressure vacuuming, and vacuum heat sealing.

[0054] Next, after the material is filled, the cylinder 13 installed on the outer wall of the box 6 extends and pushes the mold 11 to slide along the outer wall of the box 6, so that the mold 11 and the outer wall of the mold 2 12 fit tightly together to form a sealed box, which completely seals the box 6, guide groove 1 7, guide groove 2 8, opening assembly 9, clamping assembly 10, and the bag 919 filled with material inside the sealed box; one end of the pipe 16 is connected to the air inlet of the vacuum negative pressure pump 5, and the other end is connected to the air outlet of the mold 2 12, forming a sealed negative pressure suction passage. The vacuum negative pressure pump 5 is activated. After activation, air is continuously drawn from the sealed chamber through pipe 16, creating a high vacuum environment inside the sealed chamber. During the vacuum extraction process, the filter plate 148 fixedly mounted at the air inlet end of pipe 16 intercepts and filters dry dust and fine impurities mixed in the suction airflow, preventing impurities from entering pipe 16 and the vacuum negative pressure pump 5 and causing blockage and equipment wear. Skirt plate 1411 and motor 1415 are fixedly installed on the inner wall of pipe 16, providing an installation reference for the transmission structure and airflow guiding structure. A through hole is opened on the inner wall of ball head 1413, which can be connected to... With the one-way tube 149's opening precisely aligned, motor 1415 is activated during vacuum operation. The output shaft of motor 1415 drives gear 1416 to rotate. Gear 1416 meshes and drives gear ring 1414 to rotate synchronously, thereby causing ball head 1413 to rotate 90 degrees relative to skirt plate 1411. This ensures the through-hole of ball head 1413 is aligned with the opening of one-way tube 149, allowing air inside the sealed chamber to flow smoothly through pipe 16, filter plate 148, one-way tube 149, and the through-hole of ball head 1413 to the vacuum negative pressure pump 5. This ensures that the vacuum path remains unobstructed throughout the entire process. Once the vacuum level inside the sealed chamber reaches the set standard, the heating wire 102 on the inner wall of the box 6 is simultaneously energized and heated. Under the constant vacuum negative pressure environment of the sealed chamber, the bag opening is heat-sealed to complete the vacuum sealing heat-sealing operation. After the heat-sealing is completed, the pressure relief valve 15 installed on the outer wall of the mold body 12 is opened to balance the internal pressure of the sealed chamber with the external atmospheric pressure. Then, the cylinder 13 retracts, causing the mold body 11 to slide away from the mold body 12, releasing the sealed chamber from its closed state. The turntable 3 continues to rotate to switch to the next station.When mold body 11 and mold body 2 12 are closed, one end of the corrugated telescopic tube 141 is fixedly installed on the outer wall of mold body 11, and the other end is fixedly installed on the outer wall of mold body 2 12. When mold body 11 slides along the outer wall of box 6 towards mold body 2 12 under the push of the telescopic end of cylinder 13, mold body 11 will drive one end of the corrugated telescopic tube 141 to compress. Under compression, the gas in the inner cavity of the corrugated telescopic tube 141 will be transported through air pipe 143 and one-way valve 2 144 to the inner cavity of the sealed air chamber 145 installed on the outer wall of mold body 2 12 to form storage. Subsequently, when the air inlet end of pipe 16 needs to be cleaned, it will be opened by activating the solenoid valve 147 installed on the outer wall of air pipe 2 146. The high air pressure within the sealed air chamber 145 causes the gas to be automatically transported via air pipe 146 to the inner cavity of one-way pipe 149 for the next process. Secondly, when mold body 11 separates from mold body 12, it causes the corrugated telescopic tube 141 to extend. During this extension, a negative pressure is generated within the extended cavity of the corrugated telescopic tube 141. This causes the one-way valve 142 installed at the air inlet end of the corrugated telescopic tube 141 to open at the threshold of the negative pressure within the tube. At this point, external gas enters the inner cavity of the corrugated telescopic tube 141 via the one-way valve 142, thus balancing the inner cavity pressure and achieving air intake. This saves energy consumption and reduces the operating cost of the device. Finally, when vacuum extraction is complete and backflushing of filter plate 148 is required, motor 2 1415 is restarted to drive gear 3 1416 to rotate in the opposite direction. Gear 3 1416 synchronously drives gear ring 1414 to rotate in the opposite direction. Subsequently, ball head 1413 returns to its original position. After ball head 1413 switches position and cuts off the vacuum extraction passage, the control system receives the valve position signal and immediately controls the solenoid valve 147 on the outer wall of air pipe 2 146 to open. This allows the high-pressure gas in the sealed air chamber 145 to be transported through air pipe 2 146 to the inner cavity of one-way pipe 149. The gas in the one-way pipe 149 is first gathered and pressurized through the conical outlet nozzle 1410. Due to the conical constriction end of the outlet nozzle 1410... Corresponding to the spherical surface of the ball head 1413, and with the diameter of the ball head 1413 being larger than the diameter of the opening of the one-way pipe 149, the high-pressure airflow ejected from the constriction end of the outlet 1410 directly impacts the smooth spherical surface of the ball head 1413, preventing it from penetrating directly. Under the obstruction of the spherical surface, the high-pressure airflow is evenly dispersed in all directions, forming a ring-shaped diffused airflow. At the same time, the skirt piece 1411 is fixedly installed on the inner wall of the pipe 16, and the arc surface of its outer wall is tightly fitted with the spherical surface of the ball head 1413, forming a closed airflow guiding channel. The dispersed airflow cannot leak through the gap between the ball head 1413 and the skirt piece 1411, and can only turn along the preset arc surface of the skirt piece 1411.Because the curved surface of the skirt piece 1411 is designed to adapt to the airflow diffusion trajectory, and one end of the curved surface is in contact with the spherical surface of the ball head 1413 while the other end is fixedly connected to the inner wall of the outlet pipe 1412, a continuous guiding path is formed from the spherical surface of the ball head 1413 to the inner cavity of the outlet pipe 1412. Under the action of pressure difference, the airflow will naturally change direction along the curvature of the curved surface, converging from a dispersed annular airflow into a directional airflow, and finally flowing along the inner wall of the outlet pipe 1412; while the outlet... The air pipe 1412 is conical in shape, with its flared end connecting to the arc surface of the skirt plate 1411 and its constricted end corresponding to the inner end of the filter plate 148. This design further concentrates and pressurizes the airflow after it has turned, allowing the airflow to be sprayed in a concentrated, high-pressure state from the constricted end of the air pipe 1412 onto the inner surface of the filter plate 148. This blows away the dust and impurities trapped on the surface of the filter plate 148, achieving backflushing cleaning of the filter plate 148, preventing clogging of the pores of the filter plate 148, and continuously ensuring smooth vacuum pumping in the pipe 16.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] 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 continuous vacuum packaging device for dried food products, comprising a support plate (1), characterized in that: A motor (2) is fixedly installed on the top of the support plate (1). A turntable (3) is fixedly sleeved on the outer edge of the output shaft of the motor (2). A support frame (4) is fixedly mounted on the outer wall of the turntable (3). A vacuum negative pressure pump (5) is fixedly installed on the top of the turntable (3). A box (6) is fixedly installed on the outer wall of the support frame (4). The main body of the discharge mechanism (17) is set on the top of the box (6). A guide groove 1 (7) is opened on the top of the box (6). A guide groove 2 (8) is opened on the inner wall of the guide groove 1 (7). The top of the box body (6) is provided with an opening assembly (9), the inner cavity of the box body (6) is provided with a clamping assembly (10), the outer wall of the box body (6) is fixedly installed with a second mold body (12), the outer wall of the box body (6) is installed with a cylinder (13), the telescopic tube of the cylinder (13) is fitted with a first mold body (11) that is sleeved with the outer wall of the box body (6), the top of the vacuum negative pressure pump (5) is provided with a pipe (16), the inner cavity of the pipe (16) is provided with a cleaning assembly (14), and the outer wall of the second mold body (12) is installed with a pressure relief valve (15).

2. The continuous vacuum packaging device for dried food products according to claim 1, characterized in that: The opening assembly (9) includes a polygonal groove (91), a circular groove (92), a multi-faceted plate (93), a rotating cylinder (96), a motor (99), a through-beam fiber optic sensor (911), a rack (912), and a bag body (919). A slider (94) is fixedly installed on the outer wall of the multi-faceted plate (93). A limit rod (95) is fixedly installed on the outer wall of the end of the multi-faceted plate (93) away from the slider (94). An arc-shaped groove (97) is opened on the top of the rotating cylinder (96). A gear (98) is fixedly sleeved on the outer wall of the rotating cylinder (96). The motor (99)... A gear two (910) is fixedly sleeved on the outer edge of the output shaft. One end of an L-shaped connecting rod (913) is fixedly installed at the bottom of the rack (912). A groove (914) is opened on the inner wall of the end of the L-shaped connecting rod (913) away from the rack (912). A clamping plate (915) is provided at the bottom of the end of the L-shaped connecting rod (913) away from the rack (912). A spring (917) is provided on the outer wall of the L-shaped connecting rod (913). A ball bearing (916) is installed on the outer wall of the clamping plate (915). A support strip (918) is fixedly installed on the outer wall of the multi-deformation plate (93).

3. The continuous vacuum packaging device for dried food products according to claim 2, characterized in that: The outer wall of the slider (94) is slidably fitted against the inner wall of the polygonal groove (91) opened on the top of the box body (6). The outer wall of the limiting rod (95) is slidably fitted against the inner wall of the arc-shaped groove (97). There are six of each of the polymorphic plate (93), slider (94), limiting rod (95), arc-shaped groove (97), and support strip (918). Each polymorphic plate (93), slider (94), limiting rod (95), arc-shaped groove (97), and support strip (918) forms a sliding unit. The six sliding units are arranged in a circular array. The outer walls of two adjacent polymorphic plates (93) are slidably fitted against each other. The circular groove (92) is opened on the top of the box body (6). (92) The inner cavity of the box body (6) is penetrated. The rotating cylinder (96) is rotatably connected to the top of the box body (6). The motor (99) is fixedly installed on the top of the box body (6). The outer edge of the gear (910) meshes with the outer edge of the gear (98). The end of the bag support strip (918) away from the multi-deformation plate (93) extends to the inlet of the bag body (919) in the inner cavity of the box body (6). There are two of the two-way fiber optic sensors (911), and the two two-way fiber optic sensors (911) correspond to the transmitting end and the receiving end, respectively. The two two-way fiber optic sensors (911) are symmetrically arranged with the gear (98) as the center. The two two-way fiber optic sensors (911) are electrically connected to the motor (99), respectively.

4. The continuous vacuum packaging device for dried food products according to claim 2, characterized in that: The number of balls (916) is several, and the balls (916) are arranged in a rectangular array. The top of the clamping plate (915) slides against the inner wall of the slide groove (914). There are two racks (912), two guide grooves (7), and two guide grooves (8). Each rack (912), guide groove (7), and guide groove (8) forms a transmission unit. The two transmission units are symmetrically arranged with gear (98) as the center. The outer edge of gear (98) meshes with the outer edge of one rack (912), and the other outer edge of gear (98) meshes with the outer edge of another rack (912). One end of spring (917) is connected to the L-shaped connecting rod (913). The outer walls of the L-shaped connecting rod (913), the slide groove (914), the first clamping plate (915), the ball (916), and the first spring (917) are respectively four in number, and each L-shaped connecting rod (913), slide groove (914), first clamping plate (915), ball (916), and first spring (917) forms a single-sided clamping unit. The four single-sided clamping units are arranged symmetrically in pairs around the bag body (919). The bottom of the rack (912) is in contact with the inner wall of the first guide groove (7) and slides. The outer wall of the L-shaped connecting rod (913) is in contact with the inner wall of the second guide groove (8).

5. The continuous vacuum packaging device for dried food products according to claim 1, characterized in that: The clamping assembly (10) includes a clamping plate two (101) and a guide groove three (103). The inner wall of the clamping plate two (101) is provided with a heating wire (102), and the outer wall of the clamping plate two (101) is provided with a spring two (104).

6. The continuous vacuum packaging device for dried food products according to claim 5, characterized in that: There are two clamping plates (101), two heating wires (102), two guide grooves (103), and two springs (104). The two clamping plates (101), two heating wires (102), two guide grooves (103), and two springs (104) are respectively arranged on both sides of the inner wall of the box body (6). The outer walls of the two clamping plates (101) are slidably fitted to the inner wall of the guide grooves (103) opened on the inner wall of the box body (6). One end of the spring (104) overlaps with the outer wall of the clamping plate (101), and the outer wall of the other end of the spring (104) overlaps with the inner wall of the guide grooves (103).

7. The continuous vacuum packaging device for dried food products according to claim 1, characterized in that: The cleaning assembly (14) includes a corrugated telescopic tube (141), a sealed air chamber (145), a filter plate (148), a skirt plate (1411), and a second motor (1415). A one-way valve (142) is installed on the outer wall of the corrugated telescopic tube (141). An air pipe (143) is provided on the outer wall of the end of the corrugated telescopic tube (141) away from the cleaning assembly (14). A one-way valve (144) is installed on the inner wall of the air pipe (143). An air pipe (146) is installed on the outer wall of the sealed air chamber (145). The outer wall of the air pipe (146) is... A solenoid valve (147) is installed. A one-way tube (149) is fixedly sleeved on the inner wall of the filter plate (148). An air outlet (1410) is fixedly sleeved on the inner wall of the one-way tube (149). An air outlet pipe (1412) is fixedly sleeved on the outer edge of the skirt plate (1411). A ball head (1413) is rotatably connected to the center end of the skirt plate (1411) away from the air outlet pipe (1412). A gear ring (1414) is fixedly sleeved on the outer wall of the ball head (1413). A gear three (1416) is fixedly sleeved on the outer edge of the output shaft of the second motor (1415).

8. A continuous vacuum packaging device for dried food products according to claim 7, characterized in that: One end of the corrugated telescopic tube (141) is fixedly installed on the outer wall of the first mold body (11), and the other end of the corrugated telescopic tube (141) is fixedly installed on the outer wall of the second mold body (12). The one-way valve (142) is connected to the air inlet end of the corrugated telescopic tube (141). One end of the air pipe (143) is connected to the air outlet end of the corrugated telescopic tube (141), and the other end of the air pipe (143) is connected to the air inlet end of the sealed air chamber (145) installed on the outer wall of the second mold body (12). One end of the air pipe (146) is connected to the air outlet end of the sealed air chamber (145), and the other end of the air pipe (146) passes through the inner wall of the second mold body (12) and the pipe (16) and is connected to the air inlet end of the one-way pipe (149).

9. A continuous vacuum packaging device for dried food products according to claim 7, characterized in that: The filter plate (148) is fixedly assembled to the air inlet end of the pipe (16), the skirt piece (1411) is fixedly installed on the inner wall of the pipe (16), the motor (1415) is installed on the inner wall of the pipe (16), the inner wall of the ball head (1413) is provided with a through hole, and the through hole penetrates the inner cavity of the ball head (1413) and is correspondingly set to the opening end of the one-way pipe (149), the air outlet (1410) is conical in shape, and the conical flared end of the air outlet (1410) is located at the air outlet end of the one-way pipe (149), the conical constricted end of the air outlet (1410) is correspondingly set to the spherical surface of the ball head (1413), the ball head (141... 3) The diameter is larger than the opening diameter of the one-way tube (149). The outer wall of the skirt piece (1411) is provided with an arc surface, and one end of the arc surface of the skirt piece (1411) is in contact with the outer wall of the ball head (1413). The other end of the arc surface of the skirt piece (1411) is connected and fixed to the inner wall of the air outlet pipe (1412). The shape of the air outlet pipe (1412) is conical, and the conical end of the air outlet pipe (1412) is correspondingly provided with the inner end of the filter plate (148). The outer edge of the gear three (1416) meshes with the outer edge of the gear ring (1414). The rotation angle between the ball head (1413) and the skirt piece (1411) is ninety degrees.

10. A continuous vacuum packaging device for dried food products according to claim 1, characterized in that: One end of the pipe (16) is connected to the air inlet of the vacuum negative pressure pump (5), and the other end of the pipe (16) is connected to the air outlet of the second mold (12). The inner wall of the first mold (11) is fitted and slidably disposed with the outer wall of the box (6). The outer wall of the first mold (11) and the outer wall of the second mold (12) fit together to form a sealed box. The box (6), guide groove one (7), guide groove two (8), opening assembly (9) and clamping assembly (10) are located in the inner cavity of the sealed box.

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