Heat sealing equipment for preparing vacuum film bag

Abstract

The utility model relates to the technical field of heat-sealing equipment, and discloses heat-sealing equipment for preparing a vacuum film bag, which comprises a support table, an unwinding roller mounted at the top of the side surface of a support plate, a feeding component mounted in the middle of the left side of the support plate, and two clamping components mounted at the bottom of the left side of the support plate and in mirror symmetry, a driving assembly is installed on the right side of the support plate, connecting blocks are fixedly connected to the left sides of the driving rack plate and the driven rack plate, and clamping plates are fixedly connected to the left sides of the connecting blocks. By arranging the driving assembly and the clamping assembly, the driving air cylinder drives the piston rod to retract, so that the connecting plate drives the driving rack plate to move towards the back face, the connecting block drives the clamping plate to move towards the direction close to each other, and the upper portion and the lower portion of the film heat sealing position are clamped and fixed; the fixed air cylinder drives the heating plate and the supporting plate to be away from each other, so that the heating plate is separated from the surface of the film, and adhesion between the vacuum film bag and the heating plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat sealing equipment, and more specifically, to a heat sealing equipment for preparing vacuum film bags. Background Art

[0002] Vacuum film bags, also known as vacuum packaging bags, are plastic bags used to package items. Their characteristic is that they can form a vacuum state by extracting the air inside the bag, thereby effectively extending the shelf life of food or protecting other items from external factors such as moisture, dust, and oxygen.

[0003] In the initial stage of processing, the vacuum film bag is a long cylindrical strip, which is rolled on a roller and cut while being heat-sealed, thus forming a semi-finished product with one end open and the other end closed.

[0004] In the existing heat sealing device for plastic bag production, after heat sealing, the heating rod and the heat seal of the vacuum film bag may stick together. If the vacuum film bag and the heating rod are not separated in time, the heat seal of the vacuum film bag may be excessively melted or burned, and residue may appear on the heating rod, affecting the working efficiency of the heat sealing device. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a heat-sealing device for preparing vacuum film bags, which has the advantage of separating the heating rod from the vacuum film bag in a timely manner.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat sealing device for preparing vacuum film bags, comprising a support table, a support plate fixedly connected to the right side of the top of the support table, a unwinding roller installed on the top of the side of the support plate, a loading assembly installed in the middle of the left side of the support plate, two clamping assemblies installed at the bottom of the left side of the support plate, the two clamping assemblies are mirror-symmetrical, a driving assembly is installed on the right side of the support plate, a heat sealing assembly is installed on the left side of the top of the support table, and the clamping assembly includes an active rack plate, a first positioning frame, a driven rack plate, a second positioning frame and a transmission gear movably connected to the right side of the support plate, the left sides of the active rack plate and the driven rack plate are fixedly connected to a connecting block, and the left side of the connecting block is fixedly connected to the clamping plate.

[0007] As a preferred technical solution of the present invention, the first positioning frame and the second positioning frame are both fixedly connected to the surface on the right side of the bracket plate, and the surfaces of the driven rack plate and the active rack plate that are away from each other are provided with positioning grooves, the first positioning frame is slidably connected to the positioning grooves on the surface of the active rack plate, and the second positioning frame is slidably connected to the positioning grooves on the surface of the driven rack plate.

[0008] As a preferred technical scheme of the utility model, the driving assembly includes the driving cylinder fixedly connected on the right side of the support plate, the piston end of the driving cylinder is fixedly connected with the connecting plate, and the both ends of the connecting plate are fixedly connected with the mutually close surfaces of the two driving racks.

[0009] As a preferred technical scheme of the utility model, the side surface of the support plate is provided with a rectangular groove, and the rectangular groove is slidably sleeved with the connecting block.

[0010] As a preferred technical scheme of the utility model, the surface of the clamping plate is fixedly connected with a protective pad, and the protective pad is made of rubber.

[0011] As a preferred technical scheme of the utility model, the feeding assembly includes the first rotating rod and the second rotating rod movably sleeved on the side surface of the support plate and the driving motor fixedly connected on the right side of the support plate, the outer sides of the first rotating rod and the second rotating rod are fixedly sleeved with the feeding rollers, the right side of the outer side of the first rotating rod is fixedly sleeved with the driving gear, and the right side of the outer side of the second rotating rod is fixedly sleeved with the driven gear.

[0012] As a preferred technical scheme of the utility model, the heat sealing assembly includes the fixed plate fixedly connected on the top of the support table, the mounting plates fixedly connected with the front surface and the back surface of the right side of the fixed plate, the fixed cylinder fixedly connected with the surface of the mounting plate, the heating plate installed on the piston end of the fixed cylinder of the front surface, and the support plate fixedly connected with the piston end of the fixed cylinder of the back surface.

[0013] Compared with the prior art, the utility model has the advantages as follows:

[0014] 1、the utility model discloses a driving assembly and clamping assembly are equipped with, and the heat sealing assembly starts the control driving cylinder and drives the piston rod to retract simultaneously, thereby the connecting plate drives the driving rack plate to move to the back, through the transmission of the transmission gear, the driven rack plate moves to the front, and then the connecting block drives the clamping plate to move to the mutually close direction, and the upper and lower sides of the film heat sealing place are clamped and fixed, after heat sealing is completed, the fixed cylinder drives the heating plate and the support plate to be far away from each other, makes the heating plate and the surface of the film separate, avoids the situation that the vacuum film bag and the heating plate appear and stick together.

[0015] 2、the utility model discloses a feeding assembly is equipped with, and through the driving motor and drive the first rotating rod rotation, through the meshing effect of the driving gear and the driven gear, the feeding roller of the front surface counterclockwise rotation, the feeding roller of the back surface clockwise rotation, under the extrusion of the feeding roller and the propelling effect, the film moves down. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is structure schematic drawing for the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the feeding component of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the heat sealing component of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the clamping assembly of the utility model.

[0021] In the figure: 1. Support table; 101. Support plate; 111. Rectangular groove; 102. Unwinding roller; 2. Feeding assembly; 201. First rotating rod; 202. Second rotating rod; 203. Driving motor; 204. Feeding roller; 205. Active gear; 206. Driven gear; 3. Heat sealing assembly; 301. Fixed plate; 302. Mounting plate; 303. Fixed cylinder; 304. Heating plate; 305. Support plate; 4. Driving assembly; 401. Driving cylinder; 402. Connecting plate; 5. Clamping assembly; 501. Transmission gear; 502. Active rack plate; 503. First positioning frame; 504. Driven rack plate; 505. Second positioning frame; 506. Positioning slide; 507. Connecting block; 508. Clamping plate; 509. Protective pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1 to 5 As shown, the utility model provides a heat sealing device for preparing vacuum film bags, including a support table 1, a support plate 101 is fixedly connected to the right side of the top of the support table 1, a reeling roller 102 is installed on the top of the side of the support plate 101, a loading component 2 is installed in the middle of the left side of the support plate 101, two clamping components 5 are installed at the bottom of the left side of the support plate 101, and the two clamping components 5 are mirror-symmetrical, a driving component 4 is installed on the right side of the support plate 101, a heat sealing component 3 is installed on the left side of the top of the support table 1, the clamping component 5 includes an active rack plate 502, a first positioning frame 503, a driven rack plate 504, a second positioning frame 505 and a transmission gear 501 movably connected to the right side of the support plate 101, the left sides of the active rack plate 502 and the driven rack plate 504 are fixedly connected to a connecting block 507, and the left side of the connecting block 507 is fixedly connected to a clamping plate 508.

[0024] In the embodiment of the present application, when in use, the film to be heat-sealed is wound on the outside of the unwinding roller 102 and passes between the two feeding rollers 204. The first rotating rod 201 is driven to rotate by the driving motor 203. Through the meshing action of the driving gear 205 and the driven gear 206, the front feeding roller 204 rotates counterclockwise, and the back feeding roller 204 rotates clockwise. Under the squeezing and pushing action of the feeding roller 204, the film moves downward. When the film moves to the required height, the two fixed cylinders 303 drive the heating plate 304 and the support plate 305 to fit together, thereby heat-sealing the film.

[0025] When the heat sealing assembly 3 is started, the driving cylinder 401 is controlled to drive the piston rod to retract, so that the connecting plate 402 drives the active rack plate 502 to move toward the back side, and the driven rack plate 504 moves toward the front side through the transmission action of the transmission gear 501, and then the connecting block 507 drives the clamping plate 508 to move in the direction of approaching each other, clamping and fixing the upper and lower parts of the film heat seal. After the heat sealing is completed, the fixing cylinder 303 drives the heating plate 304 and the support plate 305 to move away from each other, so that the heating plate 304 is separated from the surface of the film, and then the driving cylinder 401 pushes the connecting plate 402 to move toward the front side, so that the active rack plate 502 moves toward each other, and the driven rack plate 504 moves toward the back side through the meshing transmission action of the transmission gear 501, and then the connecting block 507 drives the clamping plate 508 to move away from each other, and no longer clamps the film, thereby avoiding the situation where the heating plate 304 and the film are adhered after the heat sealing is completed.

[0026] Among them, the first positioning frame 503 and the second positioning frame 505 are both fixedly connected to the surface on the right side of the bracket plate 101, and the surfaces of the driven rack plate 504 and the active rack plate 502 that are away from each other are provided with positioning grooves 506. The first positioning frame 503 is slidably connected to the positioning grooves 506 on the surface of the active rack plate 502, and the second positioning frame 505 is slidably connected to the positioning grooves 506 on the surface of the driven rack plate 504.

[0027] The cooperation of the second positioning frame 505, the first positioning frame 503 and the positioning slide groove 506 can position the active rack plate 502 and the driven rack plate 504, so that the active rack plate 502 and the driven rack plate 504 can remain in a horizontal state and avoid tilting.

[0028] Among them, the driving component 4 includes a driving cylinder 401 fixedly connected to the right side of the bracket plate 101, the piston end of the driving cylinder 401 is fixedly connected to the connecting plate 402, and the two ends of the connecting plate 402 are fixedly connected to the surfaces of the two active rack plates 502 close to each other.

[0029] When the driving cylinder 401 drives the piston rod to retract, the connecting plate 402 drives the driving rack plate 502 to move to the back, and through the transmission effect of the transmission gear 501, the driven rack plate 504 moves to the front, and then the connecting block 507 drives the clamping plate 508 to move to the direction of approaching each other, clamping and fixing the upper and lower parts of the film heat sealing part, and vice versa, when the driving cylinder 401 drives the connecting plate 402 to move to the front, the two clamping plates 508 move away from each other.

[0030] The side surface of the support plate 101 is provided with a rectangular groove 111, and the rectangular groove 111 is slidably connected with the connecting block 507.

[0031] When the driving rack plate 502 and the driven rack plate 504 move, the connecting block 507 slides along the inner side of the rectangular groove 111, and can further position the driving rack plate 502 and the driven rack plate 504.

[0032] The surface of the clamping plate 508 is fixedly connected with a protective pad 509, and the protective pad 509 is made of rubber.

[0033] The protective pad 509 plays a buffering and protecting role, avoiding the damage of the film caused by the direct contact of the clamping plate 508 with the film.

[0034] The feeding assembly 2 includes a first rotating rod 201 and a second rotating rod 202 movably sleeved on the side surface of the support plate 101, and a driving motor 203 fixedly connected to the right side of the support plate 101, the outer sides of the first rotating rod 201 and the second rotating rod 202 are fixedly sleeved with feeding rollers 204, the right side of the outer side of the first rotating rod 201 is fixedly sleeved with a driving gear 205, and the right side of the outer side of the second rotating rod 202 is fixedly sleeved with a driven gear 206.

[0035] The first rotating rod 201 is driven to rotate by the driving motor 203, and through the meshing effect of the driving gear 205 and the driven gear 206, the front feeding roller 204 rotates counterclockwise and the back feeding roller 204 rotates clockwise, and under the extrusion and pushing effect of the feeding roller 204, the film moves downward and is heat-sealed and fed.

[0036] The heat-sealing assembly 3 includes a fixed plate 301 fixedly connected to the top of the support table 1, mounting plates 302 fixedly connected to the front and back of the right side of the fixed plate 301, a fixed cylinder 303 fixedly connected to the surface of the mounting plate 302, a heating plate 304 installed at the piston end of the front fixed cylinder 303, and a support plate 305 fixedly connected to the piston end of the back fixed cylinder 303.

[0037] The heat-sealing assembly 3 is a common prior art, and will not be described here.

[0038] The working principle and use process of this utility model:

[0039] During use, the film to be heat-sealed is wound on the outside of the unwinding roller 102 and passes between the two feeding rollers 204. The first rotating rod 201 is driven to rotate by the driving motor 203. Through the meshing action of the driving gear 205 and the driven gear 206, the front feeding roller 204 rotates counterclockwise, and the back feeding roller 204 rotates clockwise. Under the squeezing and pushing action of the feeding roller 204, the film moves downward. When the film moves to the required height, the two fixed cylinders 303 drive the heating plate 304 and the support plate 305 to fit together, thereby heat-sealing the film.

[0040] When the heat sealing assembly 3 is started, the driving cylinder 401 is controlled to drive the piston rod to retract, so that the connecting plate 402 drives the active rack plate 502 to move toward the back side, and the driven rack plate 504 moves toward the front side through the transmission action of the transmission gear 501, and then the connecting block 507 drives the clamping plate 508 to move in the direction of approaching each other, clamping and fixing the upper and lower parts of the film heat seal. After the heat sealing is completed, the fixing cylinder 303 drives the heating plate 304 and the support plate 305 to move away from each other, so that the heating plate 304 is separated from the surface of the film, and then the driving cylinder 401 pushes the connecting plate 402 to move toward the front side, so that the active rack plate 502 moves toward each other, and the driven rack plate 504 moves toward the back side through the meshing transmission action of the transmission gear 501, and then the connecting block 507 drives the clamping plate 508 to move away from each other, and no longer clamps the film, thereby avoiding the situation where the heating plate 304 and the film are adhered after the heat sealing is completed.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat sealing device for preparing vacuum film bags, comprising a support table (1), characterized in that: The right side of the top of the support platform (1) is fixedly connected to a support plate (101), the top of the side of the support plate (101) is installed with a reeling roller (102), the middle of the left side of the support plate (101) is installed with a loading assembly (2), the bottom of the left side of the support plate (101) is installed with two clamping assemblies (5), the two clamping assemblies (5) are mirror-symmetrical, the right side of the support plate (101) is installed with a driving assembly (4), the left side of the top of the support platform (1) is installed with a driving assembly (4). A heat sealing assembly (3) is installed, and the clamping assembly (5) includes an active rack plate (502), a first positioning frame (503), a driven rack plate (504), a second positioning frame (505), and a transmission gear (501) movably sleeved on the right side of the bracket plate (101), the left sides of the active rack plate (502) and the driven rack plate (504) are fixedly connected to a connecting block (507), and the left side of the connecting block (507) is fixedly connected to a clamping plate (508).

2. The heat sealing device for preparing vacuum film bags according to claim 1, characterized in that: The first positioning frame (503) and the second positioning frame (505) are both fixedly connected to the surface on the right side of the bracket plate (101); the surfaces of the driven rack plate (504) and the active rack plate (502) that are away from each other are both provided with positioning grooves (506); the first positioning frame (503) is slidably connected to the positioning grooves (506) on the surface of the active rack plate (502); and the second positioning frame (505) is slidably connected to the positioning grooves (506) on the surface of the driven rack plate (504).

3. The heat sealing device for preparing vacuum film bags according to claim 1, characterized in that: The driving assembly (4) comprises a driving cylinder (401) fixedly connected to the right side of the bracket plate (101), a piston end of the driving cylinder (401) fixedly connected to a connecting plate (402), and two ends of the connecting plate (402) fixedly connected to surfaces of two active rack plates (502) close to each other.

4. The heat sealing device for preparing vacuum film bags according to claim 1, characterized in that: A rectangular groove (111) is provided on the side surface of the bracket plate (101), and the rectangular groove (111) is slidably sleeved with the connecting block (507).

5. The heat sealing device for preparing vacuum film bags according to claim 1, characterized in that: A protective pad (509) is fixedly connected to the surface of the clamping plate (508), and the protective pad (509) is made of rubber.

6. The heat sealing device for preparing vacuum film bags according to claim 1, characterized in that: The feeding assembly (2) comprises a first rotating rod (201) movably sleeved on the side of the support plate (101), a second rotating rod (202), and a driving motor (203) fixedly connected to the right side of the support plate (101); a feeding roller (204) is fixedly sleeved on the outer sides of the first rotating rod (201) and the second rotating rod (202); a driving gear (205) is fixedly sleeved on the right side of the outer side of the first rotating rod (201); and a driven gear (206) is fixedly sleeved on the right side of the outer side of the second rotating rod (202).

7. The heat sealing device for preparing vacuum film bags according to claim 1, characterized in that: The heat sealing assembly (3) comprises a fixing plate (301) fixedly connected to the top of the support platform (1); the front and back sides of the right side of the fixing plate (301) are both fixedly connected to mounting plates (302); the surface of the mounting plate (302) is fixedly connected to a fixing cylinder (303); the piston end of the fixing cylinder (303) on the front side is fixedly connected to a heating plate (304); and the piston end of the fixing cylinder (303) on the back side is fixedly connected to a supporting plate (305).

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