Vacuum forming packaging machine for strip-shaped packaging bags

Abstract

The utility model relates to the field of vacuum packaging machines, and discloses a strip-shaped packaging bag vacuum forming packaging machine which comprises a packaging machine body, a support is fixedly connected to the top of the packaging machine body, an electric telescopic rod is fixedly connected to the bottom of the support, and a U-shaped frame is fixedly connected to the bottom of the electric telescopic rod. According to the strip-shaped packaging bag vacuum forming packaging machine, an electric telescopic rod drives a U-shaped frame to move downwards, a bag opening is placed at the position of a protruding strip on a rubber vacuum plate on an adjusting plate, then an electric push rod is used for driving the rubber vacuum plate to be attached but not squeezed, and the bag opening is primarily limited while the bag opening is tightly pressed; the vacuum pump is started to be matched with the exhaust pipe and the exhaust groove to vacuumize the packaging bag, after vacuumizing is completed, the rubber vacuum plate continues to be extruded, the protruding strip enters the groove to press the bag opening, at the moment, the electric heating sealing strip is started for sealing, and the problem that when an existing vacuum packaging machine is used for sealing, air easily enters the packaging bag is solved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum packaging machine technology, specifically a vacuum forming packaging machine for strip-shaped packaging bags. Background Technology

[0002] A vacuum packaging machine is a type of packaging equipment whose main function is to extend the shelf life and improve the preservation quality of products by creating a vacuum and sealing the packaging. Vacuum packaging machines achieve a vacuum state by removing air from the inside of the packaging and reducing pressure. This vacuum state helps prevent oxidation, thus extending the shelf life of food.

[0003] Patent CN214729986U discloses a vacuum forming packaging machine for strip-shaped packaging bags. It includes a machine body with a fixed platform fixedly installed on one side of its bottom. A groove is formed on the upper surface of the fixed platform, and a motor is fixedly installed inside the groove. A rotating rod is fixedly installed on the upper surface of the motor, and a limit block is fixedly installed on the upper surface of the rotating rod. This device, through the cooperation of a slot and a top plate, prevents the packaging bags from easily shaking and becoming misaligned, thus affecting the sealing effect during the use of the vacuum forming packaging machine. The cooperation between the motor and the rotating rod enables the vacuum forming packaging machine to quickly form the strip-shaped packaging bags, improving packaging efficiency and enhancing its practicality.

[0004] However, this device uses a plug in conjunction with an air pump to vacuum the packaging bag. But when the plug is pulled out and the bag opening is clamped by the sealing plate, air can easily continue to enter the packaging bag, thus affecting the vacuum effect of the packaging bag. To address this issue, a strip-shaped packaging bag vacuum forming packaging machine is proposed to solve the problem of air easily entering the packaging bag during the sealing process of existing vacuum packaging machines. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a vacuum forming packaging machine for strip-shaped packaging bags, which solves the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a vacuum forming packaging machine for strip-shaped packaging bags, comprising a packaging machine body, a support fixedly connected to the top of the packaging machine body, an electric telescopic rod fixedly connected to the bottom of the support, a U-shaped frame fixedly connected to the bottom of the electric telescopic rod, an adjusting plate and an electric push rod symmetrically arranged in the inner cavity of the U-shaped frame, rubber vacuum plates fixedly connected to opposite faces of the adjusting plates, an electrically heated sealing strip provided at the bottom of opposite end faces of the adjusting plates, protrusions and grooves provided at opposite ends of the rubber vacuum plates, an air extraction groove provided on the inner wall of the groove, an air extraction pipe provided on one side of the rubber vacuum plates, a vacuum pump provided at the top of the support, a bag feeding mechanism provided at the top of the packaging machine body, and a collecting mechanism provided on one side of the packaging machine body.

[0009] Preferably, the two ends of the electric push rod are fixedly connected to the U-shaped frame and the adjusting plate, respectively, and the air extraction pipe is interconnected with the vacuum pump and the air extraction tank.

[0010] Preferably, the protrusion on one of the rubber vacuum plates is adapted to and corresponds to the groove on the other rubber vacuum plate. When the two rubber vacuum plates are bonded together, there is a gap between the electric heating sealing strips. When the two rubber vacuum plates are bonded together and squeezed, the protrusion will enter the corresponding groove and the two electric heating sealing strips will be bonded together.

[0011] Preferably, the bag feeding mechanism includes a fixed frame symmetrically and slidably disposed on the top of the packaging machine body, the inner cavity of the fixed frame is provided with a conveyor belt, the conveyor belt is driven by a motor, and the two conveyor belts rotate in opposite directions.

[0012] Preferably, the top of the packaging machine body is symmetrically and fixedly connected with a fixing plate. The fixing plate is connected to the fixing frame through a second electric push rod. The top of the packaging machine body is provided with a second groove. A roller is rotatably connected inside the second groove. The top of the roller is flush with the top of the second groove.

[0013] Preferably, a slot is provided through one side of the bracket, a slot is provided through one side of the fixing frame, and a guide slope is provided on the top of the packaging machine body, with the guide slope located at the bottom of the slot.

[0014] Preferably, a limiting seat is fixedly connected to one side of the main body of the packaging machine, and a collection box is provided on the top of the limiting seat.

[0015] (III) Beneficial Effects

[0016] 1. This strip-shaped vacuum forming packaging machine uses an electric telescopic rod to move the U-shaped frame downwards, positioning the bag opening at the protruding strip on the rubber vacuum plate on the adjusting plate. Then, an electric push rod is used to bring the rubber vacuum plate into contact without squeezing, initially limiting the bag opening. At the same time, the vacuum pump is activated, working with the suction pipe and suction groove to vacuum the packaging bag. After vacuuming, the rubber vacuum plate is further squeezed, causing the protruding strip to enter the groove and press the bag opening tightly. At this point, the electric heating sealing strip is activated to seal the bag, solving the problem of air easily entering the packaging bag during the sealing process of existing vacuum packaging machines.

[0017] 2. This strip-shaped vacuum forming packaging machine places the packaging bag to be vacuumed on top of the roller in the second groove. At the same time, according to the size of the packaging bag, the second electric push rod on the fixed plate drives the fixed frame and the conveyor belt to move towards the center and squeeze and limit the packaging bag. Then, the motor is turned on and the conveyor belt is used to transport the packaging bag to the appropriate position at the bottom of the U-shaped frame for vacuum sealing, which improves the convenience of sealing of this strip-shaped vacuum forming packaging machine. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present utility model;

[0019] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the rubber vacuum plate structure of this utility model;

[0021] Figure 4 This is a cross-sectional view of the structure of this utility model.

[0022] In the diagram: 1. Packaging machine body; 2. Support frame; 3. Electric telescopic rod; 4. U-shaped frame; 5. Adjusting plate; 6. Electric push rod; 7. Rubber vacuum plate; 8. Electric heating sealing strip; 9. Vacuum groove; 10. Raised strip; 11. Groove; 12. Vacuum pipe; 13. Vacuum pump; 14. Bag feeding mechanism; 141. Fixing frame; 142. Conveyor belt; 143. Motor; 144. Fixing plate; 145. Second electric push rod; 146. Second groove; 147. Roller; 148. Groove opening; 149. Guide slope; 15. Collection mechanism; 151. Limiting seat; 152. Collection box. Detailed Implementation

[0023] 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.

[0024] Example: Please refer to Figure 1-4 A vacuum forming packaging machine for strip-shaped packaging bags includes a packaging machine body 1. A support 2 is fixedly connected to the top of the packaging machine body 1. An electric telescopic rod 3 is fixedly connected to the bottom of the support 2. A U-shaped frame 4 is fixedly connected to the bottom of the electric telescopic rod 3. An adjusting plate 5 and an electric push rod 6 are symmetrically arranged in the inner cavity of the U-shaped frame 4. A rubber vacuum plate 7 is fixedly connected to the opposite side of the adjusting plate 5. An electrically heated sealing strip 8 is provided at the bottom of the opposite end face of the adjusting plate 5. A protrusion 10 and a groove 11 are provided at the opposite ends of the rubber vacuum plate 7. An air extraction groove 9 is opened in the inner wall of the groove 11. An air extraction pipe 12 is provided on one side of the rubber vacuum plate 7. A vacuum pump 13 is provided at the top of the support 2. A bag feeding mechanism 14 is provided at the top of the packaging machine body 1. A collecting mechanism 15 is provided on one side of the packaging machine body 1.

[0025] Furthermore, the two ends of the electric push rod 6 are fixedly connected to the U-shaped frame 4 and the adjusting plate 5 respectively, and the suction pipe 12 is interconnected with the vacuum pump 13 and the suction slot 9.

[0026] Furthermore, the protrusion 10 on one of the rubber vacuum plates 7 is adapted to and corresponds to the groove 11 on the other rubber vacuum plate 7. When the two rubber vacuum plates 7 are attached, there is a gap between the electric heating sealing strips 8. When the two rubber vacuum plates 7 are attached and squeezed, the protrusion 10 will enter the corresponding groove 11 and the two electric heating sealing strips 8 will be attached at this time.

[0027] Furthermore, the bag feeding mechanism 14 includes a fixed frame 141 symmetrically and slidably disposed on the top of the packaging machine body 1. The inner cavity of the fixed frame 141 is provided with a conveyor belt 142, which is driven by a motor 143. The two conveyor belts 142 rotate in opposite directions.

[0028] Furthermore, the top of the main body 1 of the packaging machine is symmetrically and fixedly connected with a fixed plate 144. The fixed plate 144 and the fixed frame 141 are connected by a second electric push rod 145. The top of the main body 1 of the packaging machine is provided with a second groove 146. A roller 147 is rotatably connected inside the second groove 146. The top of the roller 147 is flush with the top of the second groove 146. The packaging bag that needs to be vacuumed is placed on the top of the roller 147 in the second groove 146. At the same time, according to the size of the packaging bag, the fixed frame 141 and the conveyor belt 142 are moved towards the center by the second electric push rod 145 on the fixed plate 144 to squeeze and limit the packaging bag. Then, the motor 143 is turned on to cooperate with the conveyor belt 142 to transport the packaging bag to the appropriate position at the bottom of the U-shaped frame 4 for vacuum sealing, which improves the convenience of sealing this strip packaging bag vacuum forming packaging machine.

[0029] Furthermore, a slot 148 is provided through one side of the bracket 2, a slot 148 is provided through one side of the fixing frame 141, and a guide slope 149 is provided on the top of the packaging machine body 1, with the guide slope 149 located at the bottom of the slot 148.

[0030] Furthermore, a limiting seat 151 is fixedly connected to one side of the main body 1 of the packaging machine. A collection box 152 is provided on the top of the limiting seat 151. The sealed packaging bag continues to be conveyed by the bag feeding mechanism 14, so that the vacuum-sealed packaging bag passes through the slot 148 and slides into the collection box 152 on the top of the limiting seat 151 under the action of the guide slope 149, thereby improving the convenience of collecting the packaging bags of this strip-shaped packaging bag vacuum forming packaging machine.

[0031] Working principle: When using this strip-shaped vacuum forming packaging machine, the packaging bag is conveyed to the bottom of the U-shaped frame 4 by the bag feeding mechanism 14. Then, the electric telescopic rod 3 drives the U-shaped frame 4 to move down, so that the bag opening is placed at the position of the protrusion 10 on the rubber vacuum plate 7 on the adjusting plate 5. Then, the electric push rod 6 drives the rubber vacuum plate 7 to fit but not squeeze, initially limiting the bag opening. At the same time, the vacuum pump 13 is turned on to work with the air extraction pipe 12 and the air extraction groove 9 to vacuum the packaging bag. After vacuuming is completed, the rubber vacuum plate 7 is squeezed to make the protrusion 10 enter the groove 11 and press the bag opening tightly. At this time, the electric heating sealing strip 8 is turned on to seal the bag, which solves the problem that air can easily enter the packaging bag when the existing vacuum packaging machine is sealed.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] 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 machine for the vacuum-forming packaging of bags in strip, comprising a machine body (1), characterized in that: The top of the packaging machine body (1) is fixedly connected with a support (2), the bottom of the support (2) is fixedly connected with an electric telescopic rod (3), the bottom of the electric telescopic rod (3) is fixedly connected with a U-shaped frame (4), the inner cavity of the U-shaped frame (4) is symmetrically provided with an adjusting plate (5) and an electric push rod (6), the opposite surfaces of the adjusting plate (5) are fixedly connected with rubber vacuum plates (7), the bottom of the opposite end surface of the adjusting plate (5) is provided with an electric heating sealing strip (8), the opposite ends of the rubber vacuum plate (7) are provided with a convex strip (10) and a groove (11), the inner wall of the groove (11) is provided with an air extraction groove (9), one side of the rubber vacuum plate (7) is provided with an air extraction pipe (12), the top of the support (2) is provided with a vacuum pump (13), the top of the packaging machine body (1) is provided with a bag conveying mechanism (14), one side of the packaging machine body (1) is provided with a collecting mechanism (15).

2. A machine for vacuum forming packages from a web of sheet material according to claim 1, characterised in that: The two ends of the electric push rod (6) are fixedly connected with the U-shaped frame (4) and the adjusting plate (5) respectively, and the air extraction pipe (12) is in communication with the vacuum pump (13) and the air extraction groove (9).

3. A machine for vacuum forming packages from a web of sheet material according to claim 1, characterised in that: The convex strip (10) on one of the rubber vacuum plates (7) is matched with the groove (11) on the other rubber vacuum plate (7) and corresponds in position, there is a gap between the two electric heating sealing strips (8) when the two rubber vacuum plates (7) are attached, and when the two rubber vacuum plates (7) are attached and extruded, the convex strip (10) will enter the corresponding groove (11), and at this time the two electric heating sealing strips (8) are attached.

4. A machine for vacuum forming packages from a web of sheet material according to claim 1, characterised in that: The bag conveying mechanism (14) comprises a fixed frame (141) symmetrically and slidingly arranged on the top of the packaging machine body (1), the inner cavity of the fixed frame (141) is provided with a conveying belt (142), the conveying belt (142) is driven by a motor (143), and the rotating directions of the two conveying belts (142) are opposite.

5. A machine for vacuum forming packages from a web of sheet material according to claim 4, characterised in that: The top of the packaging machine body (1) is symmetrically and fixedly connected with a fixed plate (144), the fixed plate (144) and the fixed frame (141) are connected through a second electric push rod (145), the top of the packaging machine body (1) is provided with a second groove (146), the inside of the second groove (146) is rotatably connected with a rolling rod (147), and the top of the rolling rod (147) is flush with the top of the second groove (146).

6. A machine for vacuum forming packages from a web of sheet material according to claim 4, characterised in that: A notch (148) is formed through one side of the support (2), one side of the fixed frame (141) penetrates the notch (148), and a guide slope (149) is formed on the top of the packaging machine body (1), and the guide slope (149) is located at the bottom of the notch (148).

7. A machine for vacuum forming packages from a web of sheet material according to claim 1, wherein: One side of the packaging machine body (1) is fixedly connected with a limiting seat (151), and the top of the limiting seat (151) is provided with a collecting box (152).

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