Film supply mechanism for packaging bag production

Abstract

The utility model discloses a film supply mechanism for packaging bag production, which comprises a bottom plate, a first support frame and a second support frame are fixedly mounted on the upper end face of the bottom plate, a connecting sleeve is rotatably mounted on the outer wall of one side of the first support frame, and a rotating shaft is slidably mounted in the connecting sleeve. A moving opening matched with the rotating shaft is formed in the outer wall of the other side of the first supporting frame, a film winding roller is slidably installed on the outer wall of the rotating shaft, a fixing pin is slidably installed on the outer wall of the connecting sleeve in a penetrating mode, an inserting hole matched with the fixing pin is formed in the outer wall of the rotating shaft, and a shifting block is fixedly installed at the end of the fixing pin. Through the arrangement of the electric push rod, the lower pressing block, the lower pressing roller and other assemblies, the electric push rod drives the lower pressing block to move downwards, wrinkles of a film can be flattened through the bottom wall of the lower pressing block, and therefore the influence of the wrinkles on manufacturing of a packaging bag can be avoided, the lower pressing roller can extrude the film wound on the outer wall of the film winding roller, and the packaging bag is prevented from being damaged. The film is prevented from loosening on the outer wall of the film winding roller.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag production, in particular to a film supply mechanism used for packaging bag production. Background Art

[0002] Packaging bags refer to bags used to package various supplies, which make it convenient to transport and store goods during the production and circulation process. They are widely used in daily life and industrial production.

[0003] The raw material of plastic film bags is polyethylene. When producing plastic film bags, a film supply mechanism is required to clamp the rolled film. However, when the existing film supply mechanism supplies the plastic film, the film is easily wrinkled due to the pulling and clamping of the film. The existing film supply mechanism is not provided with a component to intervene in the wrinkles, resulting in wrinkles that directly affect the production and manufacturing of packaging bags, reducing the qualified rate of packaging bag production and manufacturing, and lacking practicality. Therefore, it is necessary to redesign a film supply mechanism for packaging bag production in view of the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a film supply mechanism for packaging bag production.

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

[0006] The cam is an axially rotatable member formed on a pair of camshafts, the cam being arranged on a pair of camshafts with a first end being adapted for rotation with respect to the first support frame and a second end being adapted for rotation with respect to the first support frame.

[0007] An electric push rod is fixedly installed on the outer wall of the second support frame through a connecting plate, a downward pressure block is fixedly connected to the telescopic end of the electric push rod, a screw is rotatably installed on the bottom wall of the second support frame through a lifting frame, a first motor connected to the screw is fixedly installed on the upper end surface of the second support frame, a moving plate is threadedly installed on the outer wall of the screw, the bottom wall of the moving plate is fixedly connected to the moving frame through a connecting mechanism, and a first clamping roller is rotatably installed inside the moving frame.

[0008] Preferably, the fixing mechanism comprises a fixing spring installed on the outer wall of the fixing pin, and two ends of the fixing spring are elastically connected to the outer wall of the connecting sleeve and the bottom wall of the shifting block respectively.

[0009] Preferably, the connection mechanism comprises a connection spring installed inside the connection sleeve, and two ends of the connection spring are elastically connected to the inner wall of the connection sleeve and the outer wall of the connection rod respectively.

[0010] Preferably, the connection mechanism comprises two connection rods fixedly mounted on the bottom wall of the movable plate, and ends of the two connection rods are fixedly connected to the upper end surface of the movable frame.

[0011] Preferably, a connection frame is fixedly mounted on the end of the connection rod, and a lower pressure roller is rotatably mounted inside the connection frame.

[0012] Preferably, a second clamping roller cooperating with the first clamping roller is rotatably mounted inside the second support frame, and a second motor connected to the second clamping roller is fixedly mounted on the outer wall of the second support frame.

[0013] Preferably, a plurality of pulleys are fixedly mounted on the bottom wall of the base plate, and each of the pulleys is a universal wheel.

[0014] Preferably, a plurality of cylinders are fixedly mounted on the bottom wall of the base plate, and a support plate is fixedly mounted on the telescopic end of each cylinder.

[0015] Beneficial effects of the utility model:

[0016] 1. By setting up components such as an electric push rod, a lower pressing block and a lower pressing roller, the electric push rod drives the lower pressing block to move downward, and the wrinkles of the film can be smoothed through the bottom wall of the lower pressing block, thereby avoiding the influence of wrinkles on the manufacturing of packaging bags. The lower pressing roller can squeeze the film wound on the outer wall of the film winding roller to avoid the film loosening on the outer wall of the film winding roller.

[0017] 2. By setting up components such as a connecting sleeve, a rotating shaft and a fixed sleeve, the rotating shaft is inserted into the connecting sleeve. At this time, the fixing spring can drive the fixing pin to move into the socket, thereby realizing the installation and fixation of the rotating shaft, thereby realizing the convenient installation and fixation of the film winding roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a film supply mechanism for packaging bag production proposed by the utility model;

[0019] Figure 2 This is a side structural schematic diagram of a film supply mechanism for packaging bag production proposed by the utility model;

[0020] Figure 3 for Figure 1 Schematic diagram of the vertical section structure;

[0021] Figure 4 for Figure 2 A schematic diagram of the structure enlargement at point A;

[0022] Figure 5 for Figure 3 A schematic diagram of the structure at B in FIG.

[0023] Figure 6 for Figure 3 Schematic diagram of the enlarged structure at position C in FIG.

[0024] In the figure: 1 bottom plate, 2 first support frame, 3 second support frame, 4 connecting sleeve, 5 rotating shaft, 6 film winding roller, 7 fixing pin, 8 shifting block, 9 fixing spring, 10 fixing sleeve, 11 connecting sleeve, 12 connecting spring, 13 connecting rod, 14 connecting frame, 15 lower pressure roller, 16 connecting plate, 17 electric push rod, 18 lower pressure block, 19 lifting frame, 20 screw, 21 first motor, 22 moving plate, 23 connecting rod, 24 moving frame, 25 first clamping roller, 26 second clamping roller, 27 second motor, 28 pulley, 29 cylinder, 30 support plate. 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] Reference Figure 1-6 A film supply mechanism for packaging bag production comprises a bottom plate 1, a first support frame 2 and a second support frame 3 are fixedly installed on the upper end surface of the bottom plate 1, a connecting sleeve 4 is rotatably installed on the outer wall of one side of the first support frame 2, a rotating shaft 5 is slidably installed inside the connecting sleeve 4, a movable opening matching the rotating shaft 5 is opened on the outer wall of the other side of the first support frame 2, a film winding roller 6 is slidably installed on the outer wall of the rotating shaft 5, a fixing pin 7 is slidably installed through the outer wall of the connecting sleeve 4, a plug hole matching the fixing pin 7 is opened on the outer wall of the rotating shaft 5, a shift block 8 is fixedly installed on the end of the fixing pin 7, and the bottom wall of the shift block 8 is connected to the outer wall of the connecting sleeve 4 through a fixing mechanism, and the fixing mechanism comprises a fixing spring 9 installed on the outer wall of the fixing pin 7, and the two ends of the fixing spring 9 are elastically connected to the outer wall of the connecting sleeve 4 and the bottom wall of the shift block 8 respectively.

[0027] Two fixed sleeves 10 cooperating with the film winding roller 6 are installed on the outer wall of the rotating shaft 5 through threaded rotation. A connecting sleeve 11 is fixedly installed on the bottom wall of the first support frame 2. A connecting rod 13 is slidably installed inside the connecting sleeve 11 through a connecting mechanism. The connecting mechanism includes a connecting spring 12 installed inside the connecting sleeve 11. The two ends of the connecting spring 12 are elastically connected to the inner wall of the connecting sleeve 11 and the outer wall of the connecting rod 13 respectively. A connecting frame 14 is fixedly installed on the end of the connecting rod 13, and a lower pressure roller 15 is rotatably installed inside the connecting frame 14.

[0028] An electric push rod 17 is fixedly installed on the outer wall of the second support frame 3 through a connecting plate 16, and a lower pressing block 18 is fixedly connected to the telescopic end of the electric push rod 17. A screw 20 is rotatably installed on the bottom wall of the second support frame 3 through a lifting frame 19. A first motor 21 connected to the screw 20 is fixedly installed on the upper end surface of the second support frame 3. A moving plate 22 is threadedly installed on the outer wall of the screw 20. A moving frame 24 is fixedly connected to the bottom wall of the moving plate 22 through a connecting mechanism. The connecting mechanism includes two connecting rods 23 fixedly installed on the bottom wall of the moving plate 22. The ends of the two connecting rods 23 are fixedly connected to the upper end surface of the moving frame 24, a first clamping roller 25 is rotatably installed inside the moving frame 24, a second clamping roller 26 cooperating with the first clamping roller 25 is rotatably installed inside the second support frame 3, a second motor 27 connected to the second clamping roller 26 is fixedly installed on the outer wall of the second support frame 3, a plurality of pulleys 28 are fixedly installed on the bottom wall of the base plate 1, each pulley 28 is a universal wheel, a plurality of cylinders 29 are fixedly installed on the bottom wall of the base plate 1, and a support plate 30 is fixedly installed on the telescopic end of each cylinder 29.

[0029] When the present invention is in use, the bottom plate 1 can be moved by multiple pulleys 28, thereby driving the film winding roller 6 to move conveniently. When it moves to the specified position, multiple cylinders 29 can simultaneously drive multiple support plates 30 to move downward, thereby the bottom plate 1 can be stably supported by multiple support plates 30. Before supplying film, the film winding roller 6 with the film wound can be slidably installed on the outer wall of the rotating shaft 5, and then the two fixing sleeves 10 can be installed by threaded rotation to limit and fix the film winding roller 6, and then the rotating shaft 5 can be inserted into the connecting sleeve 4 through the moving opening. At this time, the fixing spring 9 can drive the fixing pin 7 to move into the jack, thereby realizing the installation and fixation of the rotating shaft 5, thereby realizing the installation and fixation of the film winding roller 6. At this time, through the elastic action of the connecting spring 12, the connecting frame 14 can be driven downward by the connecting rod 13, and the connecting frame 14 then drives the lower pressure roller 15 to squeeze the film wound on the outer wall of the film winding roller 6 to prevent the film from loosening on the outer wall of the film winding roller 6.

[0030] When supplying film, the rotating shaft 5 can be used to drive the film roller 6 to rotate through the connecting sleeve 4. At this time, the end of the film can be pulled between the first clamping roller 25 and the second clamping roller 26. Then the first motor 21 drives the screw 20 to rotate. The screw 20 drives the movable plate 22 to move when rotating. The movable plate 22 then drives the movable frame 24 to move downward through the two connecting rods 23. The movable frame 24 drives the first clamping roller 25 and the second clamping roller 26 to approach to clamp the film. Then the second motor 27 drives the second clamping roller 26 to rotate. The second clamping roller 26 and the first clamping roller 25 cooperate with each other to rotate to clamp the film to complete the film supply. At the same time, the electric push rod 17 drives the lower pressing block 18 to move downward. The wrinkles of the film can be smoothed through the bottom wall of the lower pressing block 18, thereby avoiding the wrinkles from affecting the manufacture of the packaging bag.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A film supply mechanism for packaging bag production, characterized in that: The invention comprises a bottom plate (1), wherein a first support frame (2) and a second support frame (3) are fixedly mounted on the upper end surface of the bottom plate (1); a connecting sleeve (4) is rotatably mounted on the outer wall of one side of the first support frame (2); a rotating shaft (5) is slidably mounted inside the connecting sleeve (4); a movable opening cooperating with the rotating shaft (5) is provided on the outer wall of the other side of the first support frame (2); a film winding roller (6) is slidably mounted on the outer wall of the rotating shaft (5); a fixing pin (7) is slidably mounted through the outer wall of the connecting sleeve (4); a plug hole cooperating with the fixing pin (7) is provided on the outer wall of the rotating shaft (5); a shifting block (8) is fixedly mounted on the end of the fixing pin (7); the bottom wall of the shifting block (8) is connected to the outer wall of the connecting sleeve (4) through a fixing mechanism; two fixing sleeves (10) cooperating with the film winding roller (6) are rotatably mounted on the outer wall of the rotating shaft (5) through a thread; a connecting sleeve (11) is fixedly mounted on the bottom wall of the first support frame (2); a connecting rod (13) is slidably mounted inside the connecting sleeve (11) through a connecting mechanism; An electric push rod (17) is fixedly mounted on the outer wall of the second support frame (3) via a connecting plate (16); a lower pressing block (18) is fixedly connected to the telescopic end of the electric push rod (17); a screw rod (20) is rotatably mounted on the bottom wall of the second support frame (3) via a lifting frame (19); a first motor (21) connected to the screw rod (20) is fixedly mounted on the upper end surface of the second support frame (3); a moving plate (22) is threadedly mounted on the outer wall of the screw rod (20); a moving frame (24) is fixedly connected to the bottom wall of the moving plate (22) via a connecting mechanism; a first clamping roller (25) is rotatably mounted inside the moving frame (24).

2. The film supply mechanism for packaging bag production according to claim 1, characterized in that: The fixing mechanism comprises a fixing spring (9) mounted on the outer wall of the fixing pin (7), and two ends of the fixing spring (9) are elastically connected to the outer wall of the connecting sleeve (4) and the bottom wall of the shifting block (8) respectively.

3. The film supply mechanism for packaging bag production according to claim 2, characterized in that: The connection mechanism comprises a connection spring (12) installed inside the connection sleeve (11), and two ends of the connection spring (12) are elastically connected to the inner wall of the connection sleeve (11) and the outer wall of the connection rod (13) respectively.

4. The film supply mechanism for packaging bag production according to claim 3, characterized in that: The connection mechanism comprises two connection rods (23) fixedly mounted on the bottom wall of the moving plate (22), and the ends of the two connection rods (23) are fixedly connected to the upper end surface of the moving frame (24).

5. The film supply mechanism for packaging bag production according to claim 4, characterized in that: A connection frame (14) is fixedly mounted on the end of the connection rod (13), and a lower pressure roller (15) is rotatably mounted inside the connection frame (14).

6. The film supply mechanism for packaging bag production according to claim 5, characterized in that: A second clamping roller (26) cooperating with the first clamping roller (25) is rotatably mounted inside the second support frame (3), and a second motor (27) connected to the second clamping roller (26) is fixedly mounted on the outer wall of the second support frame (3).

7. The film supply mechanism for packaging bag production according to claim 5, characterized in that: A plurality of pulleys (28) are fixedly mounted on the bottom wall of the base plate (1), and each of the pulleys (28) is a universal wheel.

8. The film supply mechanism for packaging bag production according to claim 5, characterized in that: A plurality of cylinders (29) are fixedly mounted on the bottom wall of the base plate (1), and a support plate (30) is fixedly mounted on the telescopic end of each cylinder (29).

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