Bag type vacuum packaging machine

Abstract

The utility model discloses a bag type vacuum packaging machine, and belongs to the technical field of vacuum packaging. A bag type vacuum packaging machine comprises a machine body, a workbench is arranged on the machine body, a vacuum mechanism is arranged above the workbench, the vacuum mechanism comprises a cover body, two sets of fixing mechanisms are oppositely arranged on the inner side of the cover body, and a sealing assembly is arranged on one side of the fixing mechanism located on one side. The fixing mechanism comprises two positioning blocks which are oppositely arranged, a mounting hole is formed in one end of each positioning block, a spring and a limiting column are arranged in each mounting hole, one end of each spring is connected with the end of the corresponding limiting column, and the other end of each limiting column extends to the outer side of the corresponding positioning block. And dislocation of the bag opening and the sealing assembly due to deformation of the packaging bag in the vacuumizing process is avoided, so that the plastic packaging effect of the bag opening is guaranteed, and the sealing accuracy is improved. And the distance between the two positioning blocks can be adaptively adjusted according to the size of the packaging bag, so that the application range of the device is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum packaging, and more specifically to a bag type vacuum packaging machine. Background Art

[0002] Vacuum packaging machines are divided into chamber vacuum packaging machines and external vacuum packaging machines. The entire packaging process of the chamber vacuum packaging machine is carried out in a vacuum chamber. When packaging, the packaging bag containing the items is placed in the chamber, and the vacuum is drawn after the lid is closed. After reaching the predetermined vacuum degree, the heat sealer will seal the bag opening. This method has a higher vacuum degree.

[0003] The vacuum packaging machine uses plastic or plastic aluminum foil film as packaging materials. It can automatically extract the air in the packaging bag for liquid, solid, powdery and paste food, grain, fruit, pickles, preserved fruit, chemical drugs, medicinal materials, etc., and complete the sealing process after reaching a predetermined vacuum degree. For example, the existing patent announcement number CN212766995U provides a fully automatic stretch film vacuum packaging machine, in which the cylinder drives the driving shaft to rotate through the piston rod, the driving shaft drives the vacuum sealing cover to rotate through the swing plate, and the vacuum sealing cover drives the driven shaft to rotate through the swing plate, so that the vacuum sealing cover is automatically covered and sealed, and the sealing of the vacuum sealing cover is ensured by maintaining sufficient air pressure. However, after the bag-packaged items are vacuumed, the bag itself is easily deformed, resulting in the offset of the sealing position, which can easily reduce the sealing efficiency. In view of this, we propose a bag-type vacuum packaging machine. Utility Model Content

[0004] The purpose of the utility model is to provide a bag type vacuum packaging machine to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A bag vacuum packaging machine comprises a machine body, a workbench is arranged on the machine body, a vacuum mechanism is arranged above the workbench, the vacuum mechanism comprises a cover body, two sets of fixing mechanisms are arranged oppositely inside the cover body, and a sealing component is arranged on one side of the fixing mechanism on one side;

[0007] The fixing mechanism includes two positioning blocks arranged opposite to each other. A mounting hole is opened at one end of the positioning block. A spring and a limiting column are arranged in the mounting hole. One end of the spring is connected to the end of the limiting column, and the other end of the limiting column extends to the outside of the positioning block.

[0008] Preferably, the fixing mechanism further comprises a screw rod, on which are arranged two threaded sections with opposite thread directions, two positioning blocks are respectively sleeved on both sides of the limiting column, and the positioning blocks are threadedly connected to the limiting column;

[0009] The two positioning blocks are provided with limit rods through which the positioning blocks are slidably matched with the limit rods.

[0010] Preferably, it also includes a driving mechanism, the output shaft of the driving mechanism is connected to the screw rod, a protective shell is arranged on the outside of the cover body, and the driving mechanism is installed in the protective shell.

[0011] Preferably, a conveyor belt is arranged on the workbench, a limiting component is arranged on the conveyor belt, and a support plate is arranged between the conveyor belts.

[0012] Preferably, the limiting assembly includes a limiting bar, a groove is provided at the top of the limiting bar along its length direction, a plurality of clips are arranged on the limiting bar near the outer side of the conveyor belt, and one end of the outer side of the clip is connected to the conveyor belt.

[0013] Preferably, the sealing assembly comprises a sealing strip, and the sealing strip corresponds to the top groove of the limiting strip.

[0014] Preferably, a limiting convex strip is provided on a side of the top surface of the conveyor belt away from the limiting strip.

[0015] Preferably, the cross section of the conveyor belt along its width direction is arranged as an inclined surface, and the inclined surface is inclined upward toward the side close to the limiting strip.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) The utility model fixes the four sides of the packaging bag by setting a fixing mechanism to prevent the packaging bag from deforming during the vacuuming process and causing the bag opening to be misaligned with the sealing component, thereby ensuring the plastic sealing effect of the bag opening and improving the sealing accuracy. The distance between the two positioning blocks can be adjusted by rotating the screw, and adaptive adjustment can be made according to the size of the packaging bag, making the device more applicable.

[0018] (2) The utility model applies pressure to the bag opening by setting a clamp, so that the bag opening is pressed between the clamp and the surface of the conveyor belt, wherein the clamp is a strip structure and will not completely press the bag opening, thereby not affecting the subsequent vacuuming of the packaging bag. By setting a limit strip on one side of the clamp, the bag opening is lifted up to a certain height to prevent objects in the packaging bag from slipping out during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the bag-type vacuum packaging machine of the utility model;

[0020] Figure 2 It is a schematic side view of the overall structure of the bag-type vacuum packaging machine of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the cover body of the utility model;

[0022] Figure 4 For the utility model Figure 3 The enlarged schematic diagram at A in the middle;

[0023] Figure 5 It is a right side schematic diagram of the overall structure of the utility model.

[0024] Explanation of the numbers in the figure: 1. Machine body; 2. Workbench; 3. Vacuum mechanism; 4. Cover; 401. Protective shell; 5. Screw; 6. Positioning block; 7. Limiting column; 8. Limiting rod; 9. Sealing assembly; 10. Conveyor belt; 11. Limiting strip; 12. Clip; 13. Limiting convex strip; 14. Driving mechanism. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below 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, rather than all of the embodiments.

[0026] Example:

[0027] See also Figure 1-5 A bag vacuum packaging machine includes a body 1, a workbench 2 is arranged on the body 1, a vacuum mechanism 3 is arranged above the workbench 2, the vacuum mechanism 3 includes a cover body 4, wherein sealing strips are arranged on the edges of the cover body 4, and two sets of fixing mechanisms are arranged on the inner side of the cover body 4, respectively, and the two sets of fixing mechanisms are used to fix the edges of the packaging bag, so that the deformation displacement of the plane of the packaging bag during the vacuuming process is reduced, and a sealing component 9 is arranged on one side of the fixing mechanism on one side, which is used to perform plastic sealing on the packaging bag; during the vacuuming process, the packaging bag is easy to extend in the height direction, which causes the packaging bag to shrink toward the middle, so that the bag mouth of the packaging bag is misaligned with the sealing component 9, resulting in sealing failure. The present application fixes the four sides of the packaging bag by setting a fixing mechanism to avoid deformation of the packaging bag during the vacuuming process, so that the bag mouth is misaligned with the sealing component 9, thereby ensuring the plastic sealing effect of the bag mouth. A heat dissipation component is also arranged on the body 1.

[0028] The fixing mechanism includes two positioning blocks 6 arranged opposite to each other, and a mounting hole is opened at one end of the positioning block 6, in which a spring and a limiting column 7 are arranged, one end of the spring is connected to the end of the limiting column 7, and the other end of the limiting column 7 extends to the outside of the positioning block 6, and the elastic force of the spring is used to push the limiting column 7 so that the limiting column 7 presses the packaging bag tightly, wherein a rubber pad is bonded to the end of the limiting column 7 to increase the friction between the limiting column 7 and the packaging bag, so as to prevent the packaging bag from slipping off the bottom of the limiting column 7 during the vacuuming process.

[0029] In the present application, the fixing mechanism also includes a screw rod 5, on which are provided two threaded sections with opposite thread directions. Two positioning blocks 6 are respectively sleeved on both sides of the limiting column 7, and the positioning blocks 6 are threadedly connected to the limiting column 7. The distance between the two positioning blocks 6 can be adjusted by rotating the screw rod 5, and adaptive adjustment can be made according to the size of the packaging bag, so that the device has a wider range of applications.

[0030] The two positioning blocks 6 are penetrated by limiting rods 8, and the positioning blocks 6 are slidably matched with the limiting rods 8. Through the setting of the limiting rods 8, when the screw 5 is rotated, the positioning blocks 6 will not rotate with it, and the positioning blocks 6 can only move along the length direction of the screw 5 and the limiting rods 8.

[0031] The present application also includes a driving mechanism 14, the output shaft of the driving mechanism 14 is connected to the screw rod 5, a protective shell 401 is provided on the outside of the cover body 4, and the driving mechanism 14 is installed in the protective shell 401. The driving mechanism 14 is used to drive the two screw rods 5 to rotate, so as to adjust the distance between the positioning blocks 6 on the two sets of screw rods 5.

[0032] The driving mechanism may be a transmission mechanism composed of a sprocket chain, and a motor is used to drive the transmission mechanism to move, so that the two screw rods 5 rotate simultaneously for adjustment.

[0033] In the present application, a conveyor belt 10 is arranged on the workbench 2, a limiting component is arranged on the conveyor belt 10, and a support plate is arranged between the conveyor belts 10. The limiting component limits the position of the packaging bag to prevent the packaging bag from shifting during the conveying process.

[0034] In the present application, the limiting component includes a limiting strip 11, a groove is opened at the top of the limiting strip 11 along its length direction, and a plurality of clips 12 are arranged on the limiting strip 11 near the outside of the conveyor belt 10, and one end of the outer side of the clip 12 is connected to the conveyor belt 10. When the packaging bag is placed on the conveyor belt 10, the bag opening is passed under the clip 12, wherein the clip 12 is made of elastic material, and the clip 12 applies pressure to the bag opening so that the bag opening is pressed between the clip 12 and the surface of the conveyor belt 10, wherein the clip 12 is a strip structure, which will not completely press the bag opening, thereby not affecting the subsequent vacuuming of the packaging bag.

[0035] The clip 12 includes a horizontal portion and a vertical portion, wherein the horizontal portion is connected to the vertical portion at one end close to the outside, and the bottom end of the vertical portion is connected to the conveyor belt 10. The horizontal portion is a V-shaped structure opening downward, and the end of the horizontal portion contacts the conveyor belt 10. Since the clip 12 is made of elastic material, the packaging bag can pass through the clip 12 and the top surface of the conveyor belt 10. The end of the clip 12 can also be lifted upward to put the packaging bag in.

[0036] In the present application, the sealing assembly 9 includes a sealing strip, which corresponds to the top groove of the limiting strip 11. In a possible embodiment, a heating strip is arranged in the limiting strip 11. When the opening of the packaging bag is plastic-sealed, the sealing strip moves down into the groove, and the opening of the packaging bag is thermoplastically sealed by the cooperation of the sealing strip and the limiting strip 11.

[0037] When the bag opening is located below the clip 12 , the limiting strip 11 is located below the packaging bag, and the limiting strip 11 is a raised structure, which can prevent the objects in the packaging bag from slipping out to a certain extent.

[0038] In the present application, a limiting convex strip 13 is provided on the side of the top surface of the conveyor belt 10 away from the limiting strip 11 , which is used to block the packaging bag and prevent the packaging bag from sliding out of the top surface of the conveyor belt 10 .

[0039] In a possible embodiment, the cross-section of the conveyor belt 10 along its width direction is set to a slope, and the slope is inclined upward toward the side close to the limiting strip 11, so that the top surface of the conveyor belt 10 on the side of the limiting strip 11 is higher than the side of the limiting convex strip 13, and the bag opening of the packaging bag is located on the side of the limiting strip 11. The setting of the slope raises the bag opening of the packaging bag to further prevent the material in the bag from slipping out.

[0040] Working principle: When the utility model is used, firstly, the distance between the two positioning blocks 6 is adjusted according to the size of the packaging bag, so that the limiting column 7 can be pressed on the edge of the packaging bag, and the four sides of the packaging bag are fixed by setting a fixing mechanism to prevent the packaging bag from deforming during the vacuuming process so that the bag opening is misaligned with the sealing component 9, thereby ensuring the plastic sealing effect of the bag opening; then, multiple packaging bags to be plastic-sealed are placed on the top surface of the conveyor belt 10 in turn, and the bag opening of the packaging bag passes under the clamp 12; then the conveyor belt 10 works, and the packaging bags are sent to the bottom of the vacuum mechanism 3 in turn, the conveyor belt 10 stops, and the vacuum mechanism 3 moves down, so that the cover body 4 is in sealing contact with the conveyor belt 10, and then the vacuum mechanism 3 is used to vacuumize the packaging bag, and then the sealing component 9 is used to plastic seal the bag opening of the packaging bag. During the working process of the device, the conveyor belt 10 moves intermittently in turn, so that multiple packaging bags are vacuumed and plastic-sealed in turn.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A bag-type vacuum packaging machine, comprising a machine body (1), a workbench (2) being arranged on the machine body (1), a vacuum mechanism (3) being arranged above the workbench (2), characterized in that: The vacuum mechanism (3) comprises a cover body (4), two sets of fixing mechanisms are arranged opposite to each other on the inner side of the cover body (4), and a sealing assembly (9) is arranged on one side of the fixing mechanism on one side; The fixing mechanism comprises two positioning blocks (6) arranged opposite to each other, one end of the positioning block (6) is provided with a mounting hole, a spring and a limiting column (7) are arranged in the mounting hole, one end of the spring is connected to the end of the limiting column (7), and the other end of the limiting column (7) extends to the outside of the positioning block (6); A conveyor belt (10) is arranged on the workbench (2), a limit position assembly is arranged on the conveyor belt (10), and a support plate is arranged between the conveyor belts (10); The limiting assembly comprises a limiting strip (11), a heating strip is arranged inside the limiting strip (11), a groove is provided at the top of the limiting strip (11) along its length direction, a plurality of clips (12) are arranged near the outer side of the conveyor belt (10) on the limiting strip (11), and one outer end of the clip (12) is connected to the conveyor belt (10).

2. A bag type vacuum packaging machine according to claim 1, characterized in that: The fixing mechanism further comprises a screw rod (5), the screw rod (5) being provided with two threaded sections with opposite thread directions, the two positioning blocks (6) being respectively sleeved on both sides of the limiting column (7), and the positioning blocks (6) being threadedly connected to the limiting column (7); A limiting rod (8) is provided through the two positioning blocks (6), and the positioning blocks (6) are slidably matched with the limiting rod (8).

3. A bag type vacuum packaging machine according to claim 2, characterized in that: It also comprises a driving mechanism (14), wherein an output shaft of the driving mechanism (14) is connected to the screw rod (5), a protective shell (401) is arranged on the outside of the cover body (4), and the driving mechanism (14) is installed in the protective shell (401).

4. The bag type vacuum packaging machine according to claim 1, characterized in that: The sealing assembly (9) comprises a sealing strip, and the sealing strip corresponds to the top groove of the limiting strip (11).

5. The bag type vacuum packaging machine according to claim 1, characterized in that: A limiting convex strip (13) is provided on the side of the top surface of the conveyor belt (10) away from the limiting strip (11).

6. A bag type vacuum packaging machine according to claim 5, characterized in that: The cross section of the conveyor belt (10) along its width direction is arranged as an inclined surface, and the inclined surface is inclined upwards toward the side close to the limiting strip (11).

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