A seasoning perilla leaf vacuum packaging apparatus with adjustable air extraction rate

Abstract

This utility model discloses a vacuum packaging device for seasoned perilla leaves with adjustable suction speed. It includes a main body, with an upper mold and a lower mold respectively disposed on the exterior of the main body. A controller is fixedly connected to the upper front of the main body. The device also includes a packaging mechanism located inside the upper part of the main body; an ejection mechanism is located below the lower mold. This utility model relates to the field of perilla leaf production technology. This vacuum packaging device for seasoned perilla leaves with adjustable suction speed, through the cooperation of a horizontal plate, an electric telescopic rod, a horizontal column, a vertical rod, and a top plate, ejects the packaged seasoned perilla leaf box from the lower mold. This solves the problem that the limited space inside the lower mold and the packaging box not only increases the risk of hand injuries but also may cause the packaging box to slip from the hand due to unstable operation, easily leading to excessively long retrieval times and reduced working efficiency of the vacuum packaging equipment.

Description

Technical Field

[0001] This utility model relates to the field of perilla leaf production technology, specifically to a vacuum packaging device for flavored perilla leaves with adjustable suction rate. Background Technology

[0002] Perilla leaves are an annual erect herb that grows in all provinces of China, both north and south, and is also widely cultivated in East and Southeast Asia. As a specialty ingredient, perilla leaves need to be packaged using vacuum packaging equipment after being processed for seasoning.

[0003] In traditional vacuum packaging equipment, the operator places the seasoned perilla leaves into the lower mold, covers the lower mold with the packaging film, and finally closes the upper and lower molds to heat-press the packaging film onto the packaging box, thus completing the vacuum packaging of the seasoned perilla leaves. The pumping rate is adjusted by a multi-stage throttling valve.

[0004] However, after the seasoned perilla leaves are vacuum-packed, staff need to reach into the lower mold to grab the packaging box. Due to the limited space inside the lower mold and the packaging box, it is inconvenient for staff to operate. They have to grab the box in a twisted posture, and their fingers are prone to friction and collision with the inner wall of the lower mold. This not only increases the risk of hand cuts, but may also cause the packaging box to slip from their hands due to unstable operation, which can easily lead to excessively long retrieval time and reduce the working efficiency of the vacuum packaging equipment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a vacuum packaging device for seasoned perilla leaves with an adjustable suction rate. This solves the problem that the limited space inside the lower mold and packaging box makes it inconvenient for operators, increases the risk of hand injuries, and may cause the packaging box to slip from their hands due to unstable operation, leading to excessively long retrieval times and reduced efficiency of the vacuum packaging equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum packaging device for seasoned perilla leaves with adjustable suction rate, comprising a main body, an upper mold and a lower mold respectively disposed on the outside of the main body, a controller fixedly connected to the upper front of the main body, and a packaging mechanism disposed inside the upper part of the main body; an ejection mechanism disposed below the lower mold; and a sealing mechanism disposed inside the lower mold; wherein, the packaging mechanism performs vacuum packaging of the seasoned perilla leaves, the ejection mechanism ejects the packaged seasoned perilla leaf box from the lower mold by adjusting the suction rate, and the sealing mechanism improves the sealing effect of the lower mold.

[0007] Preferably, the ejection mechanism includes a horizontal plate fixed to the bottom of the lower mold; an electric telescopic rod fixed to the bottom of the horizontal plate by bolts; a horizontal column fixed to the bottom output end of the electric telescopic rod by bolts; an upright rod inserted into the inner wall of the horizontal column and fixed to the inner wall of the horizontal column by bolts, with its top extending into the interior of the lower mold through an opening; and a top plate fixed to the top of the upright rod; wherein, driven by the electric telescopic rod, the horizontal column causes the upright rod to move the top plate.

[0008] Preferably, the sealing mechanism includes a placement groove formed on the inner wall of the lower mold; a retaining groove formed on the inner wall of the lower mold and communicating with the placement groove; a sealing gasket inserted into the inner wall of the placement groove; a retaining ring fixed to the lower part of the outer wall of the sealing gasket, and the outer wall of the retaining ring being inserted into the inner wall of the retaining groove; and a protruding strip fixed to the upper part of the outer wall of the sealing gasket, and the outer wall of the protruding strip being in contact with the inner wall of the placement groove; wherein, driven by the sealing gasket, the retaining ring is inserted into the retaining groove, causing the protruding strip and the sealing gasket to be inserted into the placement groove.

[0009] Preferably, the packaging mechanism includes a support frame fixed to the upper inner wall of the main body; a hydraulic cylinder fixed to the top of the support frame by bolts, and the top output end fixed to the top of the upper mold by bolts; a vacuum tube connected to the inner wall of the upper mold, and its end extending to the top of the main body through an opening; a multi-stage throttle valve fixed to the outer wall of the vacuum tube; a heating plate fixed to the lower inner wall of the upper mold; a moving part disposed on the surface of the main body; and a take-up and release part disposed above the lower mold; wherein, the upper mold, driven by the hydraulic cylinder, is joined with the lower mold, and the pumping rate is adjusted by the multi-stage throttle valve and the vacuum tube to perform vacuum packaging.

[0010] Preferably, the moving part includes an electric slide rail, which is fixed to the surface of the body; an electric slider is slidably engaged with the outer wall of the electric slide rail, and its top is fixed to the bottom of the horizontal plate; wherein, driven by the electric slide rail, the electric slider causes the horizontal plate to move the lower mold.

[0011] Preferably, the unwinding section includes an unwinding assembly disposed on one side of the upper interior of the main body; a winding assembly disposed on the other side of the upper interior of the main body away from the unwinding assembly; and two sets of guide assemblies disposed below the unwinding assembly and the winding assembly, respectively; wherein the packaging film is unwound and wound by the cooperation of the unwinding assembly and the winding assembly, and the packaging film is guided by the guide assemblies.

[0012] Beneficial effects

[0013] This invention provides a vacuum packaging device for seasoned perilla leaves with an adjustable suction rate. It offers the following advantages: This adjustable suction rate vacuum packaging device for seasoned perilla leaves, through the cooperation of a horizontal plate, an electric telescopic rod, a horizontal column, a vertical rod, and a top plate, ejects the packaged seasoned perilla leaf box from the lower mold. This solves the problem of inconvenience for operators due to limited space in the lower mold and inside the packaging box, which not only increases the risk of hand injuries but also may cause the box to slip from the operator's hand due to unstable operation, leading to excessively long retrieval times and reduced efficiency of the vacuum packaging equipment.

[0014] By using a combination of slots, grooves, sealing gaskets, retaining rings, and raised strips, the sealing between the lower mold and the top plate is improved, preventing air leakage from the lower mold. This solves the problem that gaps may exist between the top plate and the lower mold, which could allow external air to enter the lower mold during vacuuming of the seasoned perilla leaves, increasing energy consumption and prolonging the vacuuming time for a single batch of packaging. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the appearance of the present utility model;

[0017] Figure 3 for Figure 1 A larger image is shown in section A;

[0018] Figure 4 for Figure 1 Structural diagram of the horizontal bar, electric telescopic pole, and upright pole;

[0019] Figure 5 for Figure 4 A structural diagram of the card slot, card ring, and horizontal plate;

[0020] Figure 6 for Figure 5 A schematic diagram of the structure of the central sealing gasket and retaining ring.

[0021] In the diagram: 1. Body; 2. Upper mold; 3. Lower mold; 4. Controller; 5. Packaging mechanism; 51. Support; 52. Hydraulic cylinder; 53. Vacuum tube; 54. Multi-stage throttle valve; 55. Heating plate; 56. Moving part; 561. Electric slide rail; 562. Electric slider; 57. Unwinding and rewinding part; 571. Unwinding assembly; 572. Rewinding assembly; 573. Guide assembly; 6. Ejection mechanism; 61. Horizontal plate; 62. Electric telescopic rod; 63. Horizontal column; 64. Vertical pole; 65. Top plate; 7. Sealing mechanism; 71. Placement groove; 72. Slot; 73. Sealing gasket; 74. Snap ring; 75. Raised strip. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Due to the limited space inside the mold and packaging box, it is inconvenient for staff to operate, which not only increases the risk of hand injuries, but also may cause the packaging box to slip from their hands due to unstable operation, which can easily lead to excessively long picking time and thus reduce the working efficiency of vacuum packaging equipment.

[0024] In view of this, the present invention provides a vacuum packaging device for seasoned perilla leaves with adjustable suction rate. Through the cooperation of a horizontal plate, an electric telescopic rod, a horizontal column, a vertical rod, and a top plate, the packaged seasoned perilla leaf box is ejected from the lower mold. This solves the problem that the limited space inside the lower mold and the packaging box makes it inconvenient for operators to operate, which not only increases the risk of hand injuries, but also may cause the packaging box to slip from the hands due to unstable operation, resulting in excessively long picking time and thus reducing the working efficiency of the vacuum packaging equipment.

[0025] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0026] Example 1: By Figure 1-6 It is known that a vacuum packaging device for seasoned perilla leaves with adjustable suction rate includes a main body 1, an upper mold 2 and a lower mold 3 respectively disposed on the outside of the main body 1, and a controller 4 fixedly connected to the upper front of the main body 1. The vacuum packaging device for seasoned perilla leaves with adjustable suction rate also includes a packaging mechanism 5, an ejection mechanism 6 and a sealing mechanism 7. The packaging mechanism 5 is disposed inside the upper part of the main body 1; the ejection mechanism 6 is disposed below the lower mold 3; and the sealing mechanism 7 is disposed inside the lower mold 3. The packaging mechanism 5 performs vacuum packaging of the seasoned perilla leaves, the ejection mechanism 6 ejects the packaged seasoned perilla leaf box from the lower mold 3 by adjusting the suction rate, and the sealing mechanism 7 improves the sealing effect of the lower mold 3.

[0027] In the specific implementation process, it is worth noting that the controller 4 is model CPU1214CAC / DC / Rly. The staff places the packaging box containing the seasoned perilla leaves into the cavity inside the lower mold 3. The cavity matches the size of the packaging box, so that the upper mold 2 and the lower mold 3 are closed, thereby vacuum packaging the seasoned perilla leaves. The seasoned perilla leaves are vacuum packaged by the packaging mechanism 5. By adjusting the air extraction rate, the packaged seasoned perilla leaf packaging box is ejected from the lower mold 3 by the ejection mechanism 6. The sealing mechanism 7 improves the sealing effect of the lower mold 3.

[0028] Example 2: From Figure 1-6 It is known that the ejection mechanism 6 includes a horizontal plate 61, an electric telescopic rod 62, a horizontal column 63, a vertical rod 64, and a top plate 65. The horizontal plate 61 is fixed to the bottom of the lower mold 3; the electric telescopic rod 62 is fixed to the bottom of the horizontal plate 61 by bolts; the horizontal column 63 is fixed to the bottom output end of the electric telescopic rod 62 by bolts; the vertical rod 64 is inserted into the inner wall of the horizontal column 63 and fixed to the inner wall of the horizontal column 63 by bolts, and its top extends into the interior of the lower mold 3 through an opening; the top plate 65 is fixed to the top of the vertical rod 64; wherein, driven by the electric telescopic rod 62, the horizontal column 63 causes the vertical rod 64 to move the top plate 65.

[0029] In the specific implementation process, it is worth noting that the electric telescopic pole 62 is model XTL1000. The connection between the electric telescopic pole 62 and the controller 4 is as follows: the controller 4 outputs a 4-20mA or 0-10V analog signal through the analog output module. This signal is transmitted to the control module of the electric telescopic pole 62. The control module of the electric telescopic pole 62 controls the rotation angle and speed of the motor according to the magnitude of the received analog signal, thereby precisely adjusting the extension or retraction length of the telescopic pole. The horizontal plate 61 is made of Q235 steel plate, which has high strength and rigidity. The lower mold 3 can be connected to the horizontal plate 61 by bolts. The operator can disassemble and assemble the lower mold 3 by rotating the bolts. The top plate 65 is made of nylon material with a smooth surface to avoid scratching the packaging box during ejection. The operator can disassemble and assemble the upright pole 64 by rotating the bolts on the horizontal column 63.

[0030] After the seasoned perilla leaves are vacuum-packed, the staff activates the electric telescopic rod 62 via the controller 4. The electric telescopic rod 62 moves the horizontal column 63, which in turn moves the vertical rod 64. The vertical rod 64 moves within the horizontal plate 61, which limits its movement. The vertical rod 64 then moves the top plate 65, which in turn moves the packaging box inside the lower mold 3, ejecting the packaging box from the lower mold 3. The ejection height can be precisely adjusted according to the height of the packaging box and the depth of the lower mold 3, allowing the staff to quickly remove it. After completion, the controller 4 retracts the electric telescopic rod 62, causing the top plate 65 to return to the lower mold 3. Finally, the controller 4 stops the electric telescopic rod 62, thus ejecting the packaged seasoned perilla leaf packaging box from the lower mold 3.

[0031] Furthermore, the sealing mechanism 7 includes a placement groove 71, a retaining groove 72, a sealing gasket 73, a retaining ring 74, and a protrusion 75. The placement groove 71 is formed on the inner wall of the lower mold 3; the retaining groove 72 is formed on the inner wall of the lower mold 3 and communicates with the placement groove 71; the sealing gasket 73 is inserted into the inner wall of the placement groove 71; the retaining ring 74 is fixed to the lower part of the outer wall of the sealing gasket 73, and the outer wall is inserted into the inner wall of the retaining groove 72; the protrusion 75 is fixed to the upper part of the outer wall of the sealing gasket 73, and the outer wall is attached to the inner wall of the placement groove 71; wherein, driven by the sealing gasket 73, the retaining ring 74 is inserted into the retaining groove 72, and the protrusion 75 and the sealing gasket 73 are inserted into the placement groove 71.

[0032] In the specific implementation process, it is worth noting that the sealing gasket 73 is made of food-grade silicone, which has good elasticity and high-temperature resistance. The sealing gasket 73, the retaining ring 74, and the raised strip 75 are integrally molded, and the materials of all of them are the same as those of the sealing gasket 73. The shape of the placement groove 71 matches that of the sealing gasket 73. When installing the sealing gasket 73, the worker aligns the sealing gasket 73 with the placement groove 71, aligns the retaining ring 74 with the groove 72, and then the worker presses the sealing gasket 73 into the placement groove 71. Under the action of elasticity, the retaining ring 74 inserts into the groove. In the groove 72, the sealing gasket 73 is initially fixed. At the same time, the protrusion 75 fits tightly against the inner wall of the placement groove 71, further improving the sealing performance. During the packaging process, the sealing gasket 73 is squeezed by the top plate 65 and undergoes elastic deformation, filling the gap between the molds to form a reliable seal. The amount of elastic deformation of the sealing gasket 73 can be adjusted according to the mold closing force to ensure the sealing effect while avoiding excessive deformation that could damage the sealing gasket 73. This improves the sealing performance between the lower mold 3 and the top plate 65 and prevents air leakage from the lower mold 3.

[0033] Furthermore, the packaging mechanism 5 includes a support 51, a hydraulic cylinder 52, a vacuum tube 53, a multi-stage throttle valve 54, a heating plate 55, a moving part 56, and a take-up and release part 57. The support 51 is fixed to the upper inner wall of the main body 1; the hydraulic cylinder 52 is fixed to the top of the support 51 by bolts, and the top output end is fixed to the top of the upper mold 2 by bolts; the vacuum tube 53 is connected to the inner wall of the upper mold 2, and its end extends to the top of the main body 1 through an opening; the multi-stage throttle valve 54 is fixed to the outer wall of the vacuum tube 53; the heating plate 55 is fixed to the lower inner wall of the upper mold 2; the moving part 56 is disposed on the surface of the main body 1; and the take-up and release part 57 is disposed above the lower mold 3. The upper mold 2 is driven by the hydraulic cylinder 52 and is joined with the lower mold 3. The pumping rate is adjusted by the multi-stage throttle valve 54 and the vacuum tube 53 to perform vacuum packaging.

[0034] In the specific implementation process, it is worth noting that a synchronizer is installed between the two hydraulic cylinders 52, enabling them to move simultaneously. The hydraulic cylinders 52 are model M4 / 100-50 / 25-1000. The connection between the hydraulic cylinders 52 and the controller 4 is as follows: the controller 4 outputs a 4-20mA signal via an analog output module, corresponding to the target position of the hydraulic cylinder 52. This signal is then fed into a Rexroth proportional valve actuator (e.g., VT-PR2-5X). The actuator controls the hydraulic valve opening according to the signal ratio, adjusting the movement speed and position of the hydraulic cylinder 52. The multi-stage throttle valve 54 is model PV12-1X / 100R-G24K4 / V. The connection between the multi-stage throttle valve 54 and the controller 4 is as follows: the controller 4 outputs a PWM signal with a frequency of 1-20kHz via a high-speed pulse output module, with the duty cycle corresponding to the throttle valve opening. The PWM signal is then amplified by a proportional valve amplifier (e.g., Parker). The 90R100 is converted into a current signal (0-10A) to drive the proportional electromagnet of the throttle valve, thereby achieving precise flow control. The heating plate 55 is model FINS-H100-240V / 2000W. The connection between the heating plate 55 and the controller 4 is as follows: the controller 4 outputs a 0-10V control signal through the analog output module to drive the on / off ratio of the SSR solid-state relay and adjust the power input of the heating plate 55. The operator connects the end of the vacuum tube 53 to the external vacuum pump. The model of the vacuum pump is selected according to the actual situation, as long as it meets the working conditions. The heating plate 55 is divided into an adhesive area and a cutting area. The adhesive area is located on the side of the upper mold 2 near the inside. The temperature of the adhesive area is slightly lower (e.g., 100-150℃) to meet the hot melt bonding of the film and the box opening (to avoid the box deformation or film scorching caused by excessive temperature). The cutting area is located on the outside of the upper mold 2, and the shape of the cutting area adopts a sharp blade-like edge. The temperature is higher (e.g., 150-200℃) to ensure rapid melting of the film.

[0035] At the start of packaging, the moving part 56 moves the lower mold 3 directly below the designated upper mold 2. Then, the operator starts the hydraulic cylinder 52 through the controller 4. The hydraulic cylinder 52 drives the upper mold 2 to move, so that the upper mold 2 and the lower mold 3 are closed. After the mold is closed, the controller 4 stops the hydraulic cylinder 52. After completion, the operator starts the vacuum pump and the multi-stage throttle valve 54 through the controller 4. The packaging cavity is evacuated through the vacuum tube 53 and the multi-stage throttle valve 54. According to the characteristics of the seasoned perilla leaves and the material of the packaging box, the controller 4 sets an appropriate evacuation rate. The multi-stage throttle valve 54 automatically adjusts its opening to control the evacuation speed. When the set vacuum level is reached, the controller 4 starts the heating plate 55 to heat seal the joint between the packaging film and the packaging box. After the heat sealing is completed, the controller 4 starts the hydraulic cylinder 52 again, so that the hydraulic cylinder 52 drives the upper mold 2 to rise and return to the initial position, thus realizing the vacuum packaging of the seasoned perilla leaves.

[0036] Furthermore, the moving part 56 includes an electric slide rail 561 and an electric slider 562. The electric slide rail 561 is fixed to the surface of the body 1; the electric slider 562 is slidably engaged with the outer wall of the electric slide rail 561, and its top is fixed to the bottom of the horizontal plate 61; wherein, driven by the electric slide rail 561, the electric slider 562 causes the horizontal plate 61 to move the lower mold 3.

[0037] In the specific implementation process, it is worth noting that a synchronizer is installed between the two electric slide rails 561, enabling the two electric slide rails 561 to move simultaneously. The model of the electric slide rail 561 is EGH15CA-400-P2-K1. The connection between the electric slide rail 561 and the controller 4 is as follows: the controller 4 outputs two signals through a high-speed pulse output module. The pulse signal (PUL+ / -) controls the number of steps the motor rotates, determining the distance the slide table moves; the direction signal (DIR+ / -) controls the forward and reverse rotation of the motor, determining the direction of the slide table's movement. The electric slider 562... The model of the electric slide rail 561 is matched with the model of the electric slide rail 561. After the staff puts the packaging box into the lower mold 3, the staff starts the electric slide rail 561 through the controller 4, thereby driving the electric slider 562 to move, so that the lower mold 3 moves below the upper mold 2. After completion, the controller 4 stops the electric slide rail 561. After the packaging is completed, the staff starts the electric slide rail 561 through the controller 4 again, so that the electric slider 562 moves the lower mold 3 back to the initial position. The staff takes out the ejected packaging box, realizing the feeding and discharging of the seasoning perilla leaf packaging box.

[0038] Furthermore, the unwinding section 57 includes an unwinding assembly 571, a winding assembly 572, and a guide assembly 573. The unwinding assembly 571 is disposed on one side of the upper interior of the main body 1; the winding assembly 572 is disposed on the other side of the upper interior of the main body 1 away from the unwinding assembly 571; two sets of guide assemblies 573 are provided, and are respectively disposed below the unwinding assembly 571 and the winding assembly 572; wherein, the packaging film is unwound and wound by the cooperation of the unwinding assembly 571 and the winding assembly 572, and the packaging film is guided by the guide assembly 573.

[0039] In the specific implementation process, it is worth noting that the unwinding assembly 571 includes a first support column and an unwinding roller. The first support column is fixed to one side of the inner wall of the body 1, and the unwinding roller is rotatably connected to the first support column through a bearing. The winding assembly 572 includes a second support column and a winding roller. The second support column is fixed to the side of the inner wall of the body 1 away from the first support column, and the winding roller is rotatably connected to the second support column through a bearing. The guiding assembly 573 includes a third support column and a guiding roller. The third support column is fixed to the outer wall of the body 1, and the guiding roller is rotatably connected to the third support column through a bearing. The unwinding assembly 571 uses a magnetic powder brake to control the tension, ensuring that the packaging film is released smoothly. The winding assembly 572 is driven by a servo motor, which can automatically adjust the winding tension according to the packaging speed to avoid wrinkling or stretching deformation of the film. The guiding assembly 573 provides precise guidance for the packaging film, ensuring that the film is accurately positioned during the packaging process. When packaging a box containing seasoned perilla leaves, the packaging film covers the packaging box, and the upper mold 2 heat-seals the film to achieve the unwinding and rewinding of the packaging film.

[0040] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum packaging plant for flavouring poppy seed leaves with adjustable rate of extraction of air, comprising a body (1), characterized in that: The main body (1) is provided with an upper mold (2) and a lower mold (3) on its exterior. A controller (4) is fixedly connected to the upper front of the main body (1). The vacuum packaging equipment for seasoned perilla leaves with adjustable suction rate also includes: Packaging mechanism (5) is located inside the upper part of the main body (1); An ejection mechanism (6) is located below the lower mold (3); A sealing mechanism (7) is disposed inside the lower mold (3); In this process, the seasoned perilla leaves are vacuum-packed by the packaging mechanism (5), and the packaged seasoned perilla leaf packaging box is ejected from the lower mold (3) by the ejection mechanism (6) by adjusting the air extraction rate. The sealing effect of the lower mold (3) is improved by the sealing mechanism (7).

2. The adjustable vacuum packaging equipment for flavored perilla leaves according to claim 1, characterized in that: The ejection mechanism (6) includes: A horizontal plate (61) is fixed to the bottom of the lower mold (3); The electric telescopic pole (62) is bolted to the bottom of the horizontal plate (61) of the sun; The horizontal column (63) is fixed to the bottom output end of the electric telescopic rod (62) by bolts; The upright (64) is inserted into the inner wall of the horizontal column (63) and fixed to the inner wall of the horizontal column (63) by bolts, and its top extends into the interior of the lower mold (3) through an opening; The top plate (65) is fixed to the top of the upright (64); The horizontal column (63) is driven by the electric telescopic rod (62), which causes the vertical pole (64) to move the top plate (65).

3. A vacuum packaging apparatus for flavouring psyllium husks with an adjustable rate of extraction according to claim 2, characterised in that: The sealing mechanism (7) includes: A placement groove (71) is formed on the inner wall of the lower mold (3); The slot (72) is formed on the inner wall of the lower mold (3) and is connected to the placement slot (71); A sealing gasket (73) is inserted into the inner wall of the placement groove (71); The retaining ring (74) is fixed to the lower outer wall of the sealing gasket (73), and the outer wall is inserted into the inner wall of the retaining groove (72); The protruding strip (75) is fixed to the upper part of the outer wall of the sealing gasket (73), and the outer wall is attached to the inner wall of the placement groove (71); Under the drive of the sealing gasket (73), the retaining ring (74) is inserted into the retaining groove (72), and the protrusion (75) and the sealing gasket (73) are inserted into the placement groove (71).

4. The vacuum packaging device for flavored psyllium husks with adjustable rate of air extraction according to claim 1, characterized in that: The packaging mechanism (5) includes: The bracket (51) is fixed to the upper part of the inner wall of the body (1); The hydraulic cylinder (52) is bolted to the top of the bracket (51), and the top output end is bolted to the top of the upper mold (2); A vacuum tube (53) is connected to the inner wall of the upper mold (2) and its end extends through an opening to the top of the body (1); A multi-stage throttle valve (54) is fixed to the outer wall of the vacuum tube (53); Heating plate (55) is fixed to the lower inner wall of the upper mold (2); A movable part (56) is disposed on the surface of the main body (1); The receiving / releasing part (57) is disposed above the lower mold (3); The upper mold (2) is driven by the hydraulic cylinder (52) and combined with the lower mold (3). The pumping rate is adjusted by the multi-stage throttle valve (54) and the vacuum tube (53) to perform vacuum packaging.

5. The vacuum packaging device for flavored psyllium husks with adjustable rate of air extraction according to claim 2, characterized in that: The moving part (56) includes: An electric slide rail (561) is fixed to the surface of the body (1); An electric slider (562) is slidably attached to the outer wall of the electric slide rail (561), and its top is fixed to the bottom of the horizontal plate (61); The electric slider (562) is driven by the electric slide rail (561) to move the horizontal plate (61) and the lower mold (3).

6. A flavouring vacuum packing apparatus of adjustable pumping rate according to claim 5, wherein: The retractable section (57) includes: An unwinding assembly (571) is disposed on the upper side of the interior of the main body (1); A take-up assembly (572) is disposed on the upper interior of the body (1) on the other side away from the unwinding assembly (571); Two sets of guide components (573) are provided, and are respectively located below the unwinding component (571) and the winding component (572); The packaging film is unwound and wound up by the cooperation of the unwinding assembly (571) and the winding assembly (572), and the packaging film is guided by the guiding assembly (573).

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