A double-station vacuum forming box

Abstract

The invention discloses a double-station vacuum forming box, including a double-station feeding mechanism and two vacuum forming boxes. The double-station feeding mechanism continuously conveys materials to be formed to the two vacuum forming boxes by means of lateral movement. The two vacuum forming boxes can realize continuous joint work, which can greatly improve the efficiency of material forming and packaging. The invention includes a double-station feeding mechanism, a top baffle mechanism, a mounting plate and a vacuum forming box arranged in sequence from top to bottom, wherein there are two vacuum forming boxes; the double-station feeding mechanism includes a feeder with two vertical material channels and a lateral moving component for lateral movement of the feeder; there are two top baffle mechanisms, which are used in conjunction with the vacuum forming boxes, including a baffle and a baffle moving component; the vacuum forming box includes an outer box body fixed below the mounting plate, a rotating plate mechanism installed at the bottom of the outer box body, and a lateral sealing component, an upper pressure component, a side pressure component and a bottom plate arranged in sequence from top to bottom in the outer box body.

Description

Technical Field

[0001] The invention relates to the technical field of packaging machines, in particular to a double-station vacuum forming box. Background Art

[0002] A packaging machine is a machine that uses packaging bags to pack products, playing a role in protection and beautification.

[0003] A vacuum packaging machine is a type of packaging machine that can automatically extract the air in the packaging bag and complete the sealing process after reaching a predetermined vacuum degree. Vacuum packaging machines are often used in the food industry because after vacuum packaging, the food can resist oxidation, thereby achieving the purpose of long-term preservation. In the prior art, vacuum packaging machines are all designed with a single vacuum forming box, that is, the existing vacuum packaging machines can only complete the vacuum packaging of one material at a time, and there is a defect of low efficiency. In addition, for brick-like packaging products, the packaging products packaged by the existing vacuum packaging machines have a top bulge, that is, there will be a cone-like bulge on the top, which is formed by the natural accumulation of materials when they fall, resulting in the defect that the products packaged by the existing vacuum packaging machines are not aesthetically pleasing.

[0004] The above-mentioned technical defects existing in the prior art have become a major technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The invention discloses a double-station vacuum forming box, comprising a double-station feeding mechanism and two vacuum forming boxes. The double-station feeding mechanism continuously transports materials to be formed to the two vacuum forming boxes in a transverse manner. The two vacuum forming boxes can work together continuously, and the efficiency of material forming and packaging can be greatly improved.

[0006] The double-station vacuum forming box provided by the present invention is arranged in a vacuum packaging machine, and comprises:

[0007] A double-station feeding mechanism, a top baffle mechanism, a mounting plate and a vacuum forming box are arranged in sequence from top to bottom, wherein there are two vacuum forming boxes;

[0008] The double-station feeding mechanism comprises a feeder having two vertical material channels and a lateral moving component for lateral moving the feeder, wherein the two vertical material channels can respectively convey materials to the two vacuum forming boxes during lateral movement;

[0009] The top baffle mechanism is two and is used in conjunction with the vacuum forming box, including a baffle and a baffle moving component. When the baffle moves to the top of the vacuum forming box, the vacuum forming box forms a sealed cavity;

[0010] The vacuum forming box comprises an outer box body fixed below the mounting plate, a rotating plate mechanism mounted on the bottom of the outer box body, and a transverse sealing component, an upper pressure component, a side pressure component and a bottom plate arranged in sequence from top to bottom in the outer box body, the rotating plate mechanism comprises a rotating plate, a cylinder rotating component for controlling the rotation of the rotating plate, and a bottom plate lifting component mounted on the bottom of the rotating plate and used to control the lifting of the bottom plate, the upper pressure component, the side pressure component and the bottom plate constitute a forming cavity, and a vacuum extraction interface is provided on the outer box body;

[0011] The bottom plate lifting component includes an upper push block, two double-rod cylinders, a connecting plate and an adjusting rod, wherein the cylinder body of the double-rod cylinder is fixed on the rotating plate, the connecting plate is connected to one end of the piston rods of the two double-rod cylinders close to the double-station feeding mechanism, and one end of the piston rods of the two double-rod cylinders close to the double-station feeding mechanism is connected to the upper push block, the upper push block is located in contact with the bottom plate during the rising process, and the adjusting rod is arranged in the vertical direction and between the two double-rod cylinders.

[0012] Preferably,

[0013] The feeder comprises a back plate, four vertical plates perpendicular to the back plate and two plywood plates parallel to the back plate, wherein the two back plates and one plywood plate form a vertical material channel, and the vertical material channel is a rectangular parallelepiped structure;

[0014] The transverse moving component includes a horizontally arranged sliding rod assembly, a sliding block sleeved on the sliding rod assembly and fixedly connected to the back plate, and a transverse moving cylinder with one end fixed and the other end connected to the sliding block.

[0015] Preferably,

[0016] The baffle moving component includes a flat bottom U-shaped slide frame with a slide groove on the inner side and a top plate cylinder for controlling the movement of the baffle;

[0017] The baffle is mounted on the slideway;

[0018] The cylinder barrel of the top plate cylinder is fixed to the bottom of the flat-bottom U-shaped slide, and the piston rod of the top plate cylinder is connected to the baffle.

[0019] Preferably,

[0020] The transverse sealing component includes two groups of transverse sealing components arranged opposite to each other and two upper sliding rods arranged in the outer box body. The transverse sealing component includes an edge sealing heating component and an edge sealing cylinder, wherein the cylinder body of the edge sealing cylinder is fixed on the outside of the outer box body and its piston rod extends from the outside of the outer box body into the inside and is connected to the edge sealing heating component. The edge sealing heating component is sleeved on the upper sliding rod, and the two upper sliding rods are parallel to each other and located on the same horizontal plane.

[0021] Preferably,

[0022] The upper pressure component includes two groups of upper pressure block assemblies arranged relatively to each other and two middle sliding rods arranged in the outer box body. The upper pressure block assembly includes an upper pressure block and an upper pressure block cylinder, wherein the cylinder body of the upper pressure block cylinder is fixed to the outside of the outer box body and its piston rod extends from the outside of the outer box body into the inside and is connected to the upper pressure block, the upper pressure block is sleeved on the middle sliding rod, the two middle sliding rods are parallel to each other and located on the same horizontal plane, and the two upper pressure blocks form the top of the forming cavity.

[0023] Preferably,

[0024] The side pressure component includes four sets of side plate pressing components;

[0025] The side plate pressing assembly comprises a pressing cylinder, a guide rod assembly, a connecting block and a side pressing block, wherein the cylinder body of the pressing cylinder is fixed to the outside of the outer box body and its piston rod extends from the outside of the outer box body into the inside and is connected to the connecting block, the guide rod assembly comprises a guide rod sleeve installed on the outside of the outer box body and with an opening facing the inside of the outer box body, and a guide rod with one end extending into the guide rod sleeve and the other end connected to the connecting block, a slot is provided on the connecting block and the side pressing block is plugged into the slot;

[0026] The side pressing blocks, the bottom plate and the two upper pressing blocks form a molding cavity.

[0027] Preferably,

[0028] One side of the rotating plate is connected to one side of the outer box body and can rotate around the one side of the outer box body;

[0029] The cylinder rotating component comprises a rotating cylinder and a rotating joint, wherein the rotating part of the rotating joint is mounted on the side of the rotating plate and the other end thereof is connected to the piston rod of the rotating cylinder;

[0030] The cylinder body of the rotating cylinder is mounted on the outer box body and can rotate on the outer box body.

[0031] Preferably,

[0032] It also includes a limiting component arranged at the bottom of the rotating plate;

[0033] The limiting assembly comprises a limiting cylinder and a limiting block, wherein the cylinder body of the limiting cylinder is mounted on the rotating plate and the piston rod thereof is connected to the limiting block;

[0034] When the piston rod extends the limit block, the limit block is located between the two double-rod cylinders and just above the adjusting rod.

[0035] Preferably,

[0036] Also included is a transition top block mechanism disposed on the mounting plate and between the two top baffle mechanisms;

[0037] The transition top block mechanism includes a transition plate and a transition cylinder that cooperate with the bottom opening of the vertical material channel of the feeder, wherein the transition plate is arranged above the mounting plate, the cylinder barrel of the transition cylinder is installed below the mounting plate and its piston rod extends upward from the bottom of the mounting plate and is connected to the transition plate.

[0038] Preferably,

[0039] At least one observation window is provided on the outer box body;

[0040] The observation window is covered with a transparent plate.

[0041] The double-station vacuum forming box provided by the present invention has the following advantages:

[0042] 1. The double-station feeding mechanism and two vacuum forming boxes are designed. The double-station feeding mechanism continuously transports the materials to be formed to the two vacuum forming boxes by lateral movement. The two vacuum forming boxes can work together continuously, which can greatly improve the efficiency of material forming and packaging;

[0043] 2. Through the added limit assembly, when the material is formed, the limit block is first extended to prevent the adjusting rod from rising completely to press the top of the material, to prevent the material from not falling into the packaging bag due to excessive compression. The material falls completely into the packaging bag, and then the limit block is retracted to allow the adjusting rod to rise to press the top of the material. At this time, the molding effect of the packaging bag is the best, especially the top is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A three-dimensional diagram of a double-station vacuum forming box according to an embodiment of the present invention;

[0045] Figure 2 Another perspective view of the double-station vacuum forming box according to an embodiment of the present invention;

[0046] Figure 3 A three-dimensional diagram of a double-station feeding mechanism 1 in a double-station vacuum forming box according to an embodiment of the present invention;

[0047] Figure 4 Another stereoscopic view of the double-station feeding mechanism 1 in the double-station vacuum forming box according to an embodiment of the present invention;

[0048] Figure 5 Another stereoscopic view of the double-station feeding mechanism 1 in the double-station vacuum forming box according to an embodiment of the present invention;

[0049] Figure 6 A three-dimensional diagram of a vacuum forming box 4 in a double-station vacuum forming box according to an embodiment of the present invention;

[0050] Figure 7 Another stereoscopic view of the vacuum forming box 4 in the double-station vacuum forming box according to the embodiment of the present invention;

[0051] Figure 8 It is a three-dimensional diagram of the vacuum forming box 4 hiding the outer box body 41 in the double-station vacuum forming box of the embodiment of the present invention;

[0052] Fig. 9 Another stereoscopic view of the vacuum forming box 4 hiding the outer box body 41 in the double-station vacuum forming box of the embodiment of the present invention;

[0053] Fig.10 Another stereoscopic view of the vacuum forming box 4 hiding the outer box body 41 in the double-station vacuum forming box of the embodiment of the present invention;

[0054] Fig.11 It is a three-dimensional view of the vacuum forming box 4 in the double-station vacuum forming box according to the embodiment of the present invention, in which the outer box body 41 and the rotating plate 421 are hidden. DETAILED DESCRIPTION

[0055] The invention discloses a double-station vacuum forming box, comprising a double-station feeding mechanism and two vacuum forming boxes. The double-station feeding mechanism continuously transports materials to be formed to the two vacuum forming boxes in a transverse manner. The two vacuum forming boxes can work together continuously, and the efficiency of material forming and packaging can be greatly improved.

[0056] The following is a clear and detailed description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Please refer to Figures 1 to 11 , is a double-station vacuum forming box of the present invention, which is arranged in a vacuum packaging machine and comprises:

[0057] A double-station feeding mechanism 1, a top baffle mechanism 2, a mounting plate 3 and a vacuum forming box 4 are arranged in sequence from top to bottom, wherein there are two vacuum forming boxes 4;

[0058] The double-station feeding mechanism 1 includes a feeder 11 having two vertical material channels and a lateral moving component 12 for lateral moving the feeder 11. The two vertical material channels can respectively convey materials to the two vacuum forming boxes 4 during lateral movement.

[0059] The top baffle mechanism 2 is two and is used in conjunction with the vacuum forming box 4, including a baffle 21 and a baffle moving component 22. When the baffle 21 moves to the top of the vacuum forming box 4, the vacuum forming box 4 forms a sealed cavity;

[0060] The vacuum forming box 4 includes an outer box body 41 fixed below the mounting plate 3, a rotating plate mechanism 42 installed at the bottom of the outer box body 41, and a transverse sealing component 43, an upper pressure component 44, a side pressure component 45 and a bottom plate 46 arranged in sequence from top to bottom in the outer box body 41, the rotating plate mechanism 42 includes a rotating plate 421, a cylinder rotating component 422 for controlling the rotation of the rotating plate 421, and a bottom plate lifting component 423 installed at the bottom of the rotating plate 421 and used to control the lifting of the bottom plate 46, the upper pressure component 44, the side pressure component 45 and the bottom plate 46 constitute a forming cavity, and a vacuum interface 47 is provided on the outer box body 41;

[0061] The bottom plate lifting component 423 includes an upper top block 4231, two double-rod cylinders 4232, a connecting plate 4233 and an adjusting rod 4234, wherein the cylinder body of the double-rod cylinder 4232 is fixed on the rotating plate 421, the connecting plate 4233 is connected to the end of the piston rod of the two double-rod cylinders 4232 away from the double-station feeding mechanism 1, the end of the piston rod of the two double-rod cylinders 4232 close to the double-station feeding mechanism 1 is connected to the upper top block 4231, the upper top block 4231 is located in contact with the bottom plate 46 during the rising process, and the adjusting rod 4234 is arranged in the vertical direction and between the two double-rod cylinders 4232.

[0062] In an embodiment of the present invention, the material is transported from the bottom sealed packaging film into one of the vertical material channels of the double-station feeding mechanism 1, and then the lateral moving component 12 moves the feeder 11 to the bottom opening of the vertical material channel containing the material facing one of the top baffle mechanisms 2, and then the baffle moving component 22 of the top baffle mechanism 2 pulls the baffle 21 away from the vacuum forming box 4, and the material falls into the molding cavity of the vacuum forming box 4 from the opening of the mounting plate 3. After the material completely enters the molding cavity, the baffle moving component 22 pushes the baffle 21 toward the direction close to the vacuum forming box 4 until the baffle 21 completely blocks the opening of the mounting plate 3, and at this time the vacuum forming box 4 forms a sealed cavity; then the upper pressure component 44, the side pressure component 45 and the bottom plate lifting component 423 act and form a molding cavity, the material is molded for the first time in the molding cavity, and then the vacuum forming box 4 can be vacuumed through the vacuum interface 47 and the horizontal sealing component 43 can perform the sealing process on the packaging film. It should be noted that after the baffle moving component 22 pushes the baffle 21 toward the direction close to the vacuum forming box 4 until the baffle 21 completely blocks the opening of the mounting plate 3, the lateral moving component 12 moves the feeder 11 to another idle vacuum forming box 4, and the vacuum forming box 4 can perform the above-mentioned vacuum forming steps, thereby realizing the double-station high-efficiency operation of the vacuum forming box.

[0063] In addition, after the vacuum forming process is completed, the rotating plate 421 can be opened by controlling the cylinder rotating component 422 to drop and take out the vacuum-formed packaged materials. The bottom plate lifting component 423 integrated on the rotating plate 421 of the present invention can be opened together with the rotating plate 421.

[0064] Preferably,

[0065] The feeder 11 includes a back plate 111, four vertical plates 112 perpendicular to the back plate 111, and two plywood plates 113 parallel to the back plate 111, wherein the two back plates 111 and one plywood plate 113 form a vertical material channel, and the vertical material channel is a rectangular parallelepiped structure;

[0066] The transverse moving component 12 includes a horizontally arranged sliding rod assembly 121, a sliding block 122 which is sleeved on the sliding rod assembly 121 and fixedly connected to the back plate 111, and a transverse moving cylinder 123 which is fixed at one end and connected to the sliding block 122 at the other end.

[0067] Preferably,

[0068] The baffle moving component 22 includes a flat bottom U-shaped slide 221 with a slide groove on the inner side and a top plate cylinder 222 for controlling the movement of the baffle 21;

[0069] The baffle 21 is installed on the slideway;

[0070] The cylinder barrel of the top plate cylinder 222 is fixed to the bottom of the flat-bottom U-shaped slide 221 , and its piston rod is connected to the baffle 21 .

[0071] Preferably,

[0072] The transverse sealing component 43 includes two groups of transverse sealing components arranged opposite to each other and two upper sliding rods 431 arranged in the outer box body, the transverse sealing component includes an edge sealing heating component 432 and an edge sealing cylinder 433, wherein the cylinder body of the edge sealing cylinder 433 is fixed on the outside of the outer box body 41 and its piston rod extends from the outside of the outer box body 41 into the inside and is connected to the edge sealing heating component 432, the edge sealing heating component 432 is sleeved on the upper sliding rod 431, and the two upper sliding rods 431 are parallel to each other and located on the same horizontal plane.

[0073] Preferably,

[0074] The upper pressure component 44 includes two groups of upper pressure block assemblies arranged relatively to each other and two middle slide rods 441 arranged in the outer box body, the upper pressure block assembly includes an upper pressure block 442 and an upper pressure block cylinder 443, wherein the cylinder body of the upper pressure block cylinder 443 is fixed to the outside of the outer box body 41 and its piston rod extends from the outside of the outer box body 41 into the inside and is connected to the upper pressure block 4442, the upper pressure block 442 is sleeved on the middle slide rod 441, the two middle slide rods 441 are parallel to each other and located on the same horizontal plane, and the two upper pressure blocks 442 form the top of the forming cavity.

[0075] Preferably,

[0076] The side pressure component 45 includes four sets of side plate pressing components;

[0077] The side plate pressing assembly includes a pressing cylinder 451, a guide rod assembly 452, a connecting block 453 and a side pressing block 454, wherein the cylinder body of the pressing cylinder 451 is fixed to the outside of the outer box body 41 and its piston rod extends from the outside of the outer box body 41 into the inside and is connected to the connecting block 453, the guide rod assembly 452 includes a guide rod sleeve installed on the outside of the outer box body 41 and with an opening facing the inside of the outer box body 41, and a guide rod with one end extending into the guide rod sleeve and the other end connected to the connecting block 453, a slot is provided on the connecting block 453 and the side pressing block 454 is plugged into the slot;

[0078] The side pressing blocks 454 , the bottom plate 46 and the two upper pressing blocks 442 form a molding cavity.

[0079] It should be noted that the side pressure block 454 of the present invention is installed on the connection block 453 in a plug-in manner. When the material packaging size changes, the new material packaging size can be adapted by simply replacing the side pressure block 454 without the need to modify the entire vacuum forming box 4. The specific replacement process of the side pressure block 454 can be to loosen the fixing screws of the side pressure block 454, then pull the side pressure block 454 out of the slot, and finally plug the new side pressure block into the slot and re-fix the screws.

[0080] Preferably,

[0081] One side of the rotating plate 421 is connected to one side of the outer box body 41 and can rotate around the one side of the outer box body;

[0082] The cylinder rotating component 422 includes a rotating cylinder 4221 and a rotating joint 4222, wherein the rotating part of the rotating joint 4222 is installed on the side of the rotating plate 421 and the other end thereof is connected to the piston rod of the rotating cylinder 4221;

[0083] The cylinder body of the rotating cylinder 4221 is installed on the outer box body 41 and can rotate on the outer box body 41.

[0084] Preferably,

[0085] It also includes a limiting component 424 disposed at the bottom of the rotating plate 421;

[0086] The limiting assembly 424 includes a limiting cylinder 4241 and a limiting block 4242. The cylinder body of the limiting cylinder 4241 is installed on the rotating plate 421 and the piston rod thereof is connected to the limiting block 4242.

[0087] When the piston rod extends the limit block 4242 , the limit block 4242 is located between the two double-rod cylinders 4232 and directly above the adjusting rod 4234 .

[0088] It should be emphasized that the present invention can also include a limiting assembly 424 consisting of a limiting cylinder 4241 and a limiting block 4242. Before the bottom plate lifting component 423 is actuated for the first time to control the bottom plate 46 to rise and form a molding cavity with the upper pressure component 44 and the side pressure component 45, the limiting cylinder 4241 pushes out the limiting block 4242 to limit the rising height of the bottom plate lifting component 423, that is, to limit the rising height of the bottom plate 46, so that there is a certain amount of free space at the top of the molding cavity to prevent the material from partially staying at the top position when the packaging film is vacuumed, resulting in an unsightly result; after the material is vacuum-formed, the limiting cylinder 4241 pulls the limiting block 4242 back to its original position, at which time the bottom plate lifting component 423 is actuated again and reduces the space of the molding cavity to completely compress the material, at which time the packaging bag after the material is formed will be smooth and flat, and beautiful.

[0089] Preferably,

[0090] It also includes a transition top block mechanism disposed on the mounting plate 3 and between the two top baffle mechanisms 2;

[0091] The transition top block mechanism includes a transition plate 51 and a transition cylinder 52 that cooperate with the bottom opening of the vertical material channel of the feeder 11, wherein the transition plate 51 is arranged above the mounting plate 3, the cylinder barrel of the transition cylinder 52 is installed below the mounting plate 3 and its piston rod extends upward from the bottom of the mounting plate 3 and is connected to the transition plate 51.

[0092] It should be noted that when one vertical material channel faces a vacuum forming box 4, the other vertical material channel faces the transition top block mechanism. When the restricted vertical material channel moves to above the transition top block mechanism, the transition cylinder 52 controls the transition plate 51 to rise to fit with the vertical material channel. At this time, the vertical material channel can be unloaded. Therefore, the setting of the transition top block mechanism is to provide unloading for the vertical material channel to avoid damaging the material packaging film during the unloading process of the vertical material channel.

[0093] Preferably,

[0094] At least one observation window 411 is formed on the outer box body 41;

[0095] The observation window 411 is covered with a transparent plate.

[0096] The addition of the observation window 411 can facilitate the user to observe the working condition of the vacuum forming box 4 at any time.

[0097] The double-station vacuum forming box provided by the present invention has the following advantages:

[0098] 1. The double-station feeding mechanism and two vacuum forming boxes are designed. The double-station feeding mechanism continuously transports the materials to be formed to the two vacuum forming boxes by lateral movement. The two vacuum forming boxes can work together continuously, which can greatly improve the efficiency of material forming and packaging;

[0099] 2. Through the added limit assembly, when the material is formed, the limit block is first extended to prevent the adjusting rod from rising completely to press the top of the material, to prevent the material from not falling into the packaging bag due to excessive compression. The material falls completely into the packaging bag, and then the limit block is retracted to allow the adjusting rod to rise to press the top of the material. At this time, the molding effect of the packaging bag is the best, especially the top is smoother.

[0100] The above is a detailed introduction to the double-station vacuum forming box provided by the present invention. For those skilled in the art, according to the ideas of the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A double-station vacuum forming box, arranged in a vacuum packaging machine, characterized in that: include: A double-station feeding mechanism, a top baffle mechanism, a mounting plate and a vacuum forming box are arranged in sequence from top to bottom, wherein there are two vacuum forming boxes; The double-station feeding mechanism comprises a feeder having two vertical material channels and a lateral moving component for lateral moving the feeder, wherein the two vertical material channels can respectively convey materials to the two vacuum forming boxes during lateral movement; The top baffle mechanism is two and is used in conjunction with the vacuum forming box, including a baffle and a baffle moving component. When the baffle moves to the top of the vacuum forming box, the vacuum forming box forms a sealed cavity; The vacuum forming box comprises an outer box body fixed below the mounting plate, a rotating plate mechanism mounted on the bottom of the outer box body, and a transverse sealing component, an upper pressure component, a side pressure component and a bottom plate arranged in sequence from top to bottom in the outer box body, the rotating plate mechanism comprises a rotating plate, a cylinder rotating component for controlling the rotation of the rotating plate, and a bottom plate lifting component mounted on the bottom of the rotating plate and used to control the lifting of the bottom plate, the upper pressure component, the side pressure component and the bottom plate constitute a forming cavity, and a vacuum extraction interface is provided on the outer box body; The bottom plate lifting component comprises an upper ejector block, two double-rod cylinders, a connecting plate and an adjusting rod, wherein the cylinder body of the double-rod cylinder is fixed on the rotating plate, the connecting plate is connected to one end of the piston rods of the two double-rod cylinders away from the double-station feeding mechanism, one end of the piston rods of the two double-rod cylinders close to the double-station feeding mechanism is connected to the upper ejector block, the upper ejector block contacts the bottom plate during the rising process, and the adjusting rod is arranged in the vertical direction and between the two double-rod cylinders; It also includes a limiting component arranged at the bottom of the rotating plate; The limiting assembly comprises a limiting cylinder and a limiting block, wherein the cylinder body of the limiting cylinder is mounted on the rotating plate and the piston rod thereof is connected to the limiting block; When the piston rod of the limit cylinder extends the limit block, the limit block is located between the two double-rod cylinders and directly above the adjustment rod; Also included is a transition top block mechanism disposed on the mounting plate and between the two top baffle mechanisms; The transition top block mechanism includes a transition plate and a transition cylinder that cooperate with the bottom opening of the vertical material channel of the feeder, wherein the transition plate is arranged above the mounting plate, the cylinder barrel of the transition cylinder is installed below the mounting plate and its piston rod extends upward from the bottom of the mounting plate and is connected to the transition plate.

2. The double-station vacuum forming box according to claim 1, characterized in that: The feeder comprises a back plate, four vertical plates perpendicular to the back plate and two plywood plates parallel to the back plate, wherein the two back plates and one plywood plate form a vertical material channel, and the vertical material channel is a rectangular parallelepiped structure; The transverse moving component includes a horizontally arranged sliding rod assembly, a sliding block sleeved on the sliding rod assembly and fixedly connected to the back plate, and a transverse moving cylinder with one end fixed and the other end connected to the sliding block.

3. The double-station vacuum forming box according to claim 1, characterized in that: The baffle moving component includes a flat bottom U-shaped slide frame with a slide groove on the inner side and a top plate cylinder for controlling the movement of the baffle; The baffle is mounted on the slideway; The cylinder barrel of the top plate cylinder is fixed to the bottom of the flat-bottom U-shaped slide, and the piston rod of the top plate cylinder is connected to the baffle.

4. The double-station vacuum forming box according to claim 1, characterized in that: The transverse sealing component includes two groups of transverse sealing components arranged opposite to each other and two upper sliding rods arranged in the outer box body. The transverse sealing component includes an edge sealing heating component and an edge sealing cylinder, wherein the cylinder body of the edge sealing cylinder is fixed on the outside of the outer box body and its piston rod extends from the outside of the outer box body into the inside and is connected to the edge sealing heating component. The edge sealing heating component is sleeved on the upper sliding rod, and the two upper sliding rods are parallel to each other and located on the same horizontal plane.

5. The double-station vacuum forming box according to claim 4, characterized in that: The upper pressure component includes two groups of upper pressure block assemblies arranged relatively to each other and two middle sliding rods arranged in the outer box body. The upper pressure block assembly includes an upper pressure block and an upper pressure block cylinder, wherein the cylinder body of the upper pressure block cylinder is fixed to the outside of the outer box body and its piston rod extends from the outside of the outer box body into the inside and is connected to the upper pressure block, the upper pressure block is sleeved on the middle sliding rod, the two middle sliding rods are parallel to each other and located on the same horizontal plane, and the two upper pressure blocks form the top of the forming cavity.

6. The double-station vacuum forming box according to claim 5, characterized in that: The side pressure component includes four sets of side plate pressing components; The side plate pressing assembly comprises a pressing cylinder, a guide rod assembly, a connecting block and a side pressing block, wherein the cylinder body of the pressing cylinder is fixed to the outside of the outer box body and its piston rod extends from the outside of the outer box body into the inside and is connected to the connecting block, the guide rod assembly comprises a guide rod sleeve installed on the outside of the outer box body and with an opening facing the inside of the outer box body, and a guide rod with one end extending into the guide rod sleeve and the other end connected to the connecting block, a slot is provided on the connecting block and the side pressing block is plugged into the slot; The side pressing blocks, the bottom plate and the two upper pressing blocks form a molding cavity.

7. The double-station vacuum forming box according to claim 4, characterized in that: One side of the rotating plate is connected to one side of the outer box body and can rotate around the one side of the outer box body; The cylinder rotating component comprises a rotating cylinder and a rotating joint, wherein the rotating part of the rotating joint is mounted on the side of the rotating plate and the other end thereof is connected to the piston rod of the rotating cylinder; The cylinder body of the rotating cylinder is mounted on the outer box body and can rotate on the outer box body.

8. The double-station vacuum forming box according to any one of claims 1 to 7, characterized in that: At least one observation window is provided on the outer box body; The observation window is covered with a transparent plate.

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