M-shaped packaging bag M-edge reversing mechanism suitable for various bag widths

Abstract

The utility model relates to the technical field of packaging machines, in particular to an M-shaped packaging bag M-edge reversing mechanism suitable for various bag widths, which comprises a fixing plate, and a left telescopic cylinder and a right telescopic cylinder are symmetrically arranged on the front side of the fixing plate through moving devices. A synchronizing device used for driving the left telescopic air cylinder and the right telescopic air cylinder to slide is arranged on the front face of the fixing plate, and M edge reversing devices are arranged at the output ends of the left telescopic air cylinder and the right telescopic air cylinder. One motor is used for driving, the driving synchronous wheel, the annular synchronous belt and the driven synchronous wheel are matched to drive the left telescopic air cylinder and the right telescopic air cylinder to do linear motion along the sliding rail and the sliding block, precision is high, synchronism is good, it is guaranteed that the positions of the two M edge chamfering devices are uniform, the servo motor is started and stopped at any time, and work efficiency is high. And in cooperation with a driving synchronous wheel, an annular synchronous belt, a driven synchronous wheel, a sliding rail and a sliding block, the large moving stroke is achieved, and the problem that the stroke of an air cylinder is fixed and cannot adapt to various bag widths is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, in particular to an inverted M-edge mechanism for M-shaped packaging bags adaptable to various bag widths. Background Art

[0002] The M-shaped packaging bag is a common packaging method in the food packaging industry. Usually during packaging, it is necessary to first straighten the M-edge of the original M-shaped packaging bag, fill the material, and then restore the M-edge.

[0003] For the inverted M-edge mechanism of traditional M-shaped packaging bags, the left and right horizontal movement of the insertion pieces mostly relies on the push of air cylinders, and the actions of the insertion pieces on the left and right sides are completed by two air cylinders. The synchronization of the actions of the two air cylinders is completed by a speed regulating joint. The speed of the air cylinders is affected by multiple factors such as intake pressure and solenoid valve response time, and the synchronization is extremely vulnerable to influence. Moreover, the stroke of the air cylinders is fixed and cannot adapt to the bag widths of various types of packaging bags. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an inverted M-edge mechanism for M-shaped packaging bags adaptable to various bag widths.

[0005] An inverted M-edge mechanism for M-shaped packaging bags adaptable to various bag widths includes a fixed plate. On the front surface of the fixed plate, a left telescopic cylinder and a right telescopic cylinder are symmetrically arranged through a moving device. On the front surface of the fixed plate, a synchronization device for driving the left telescopic cylinder and the right telescopic cylinder to slide is provided. The output ends of the left telescopic cylinder and the right telescopic cylinder are both provided with an inverted M-edge device.

[0006] Further, the synchronization device includes a servo motor, a driving synchronous pulley, and a driven synchronous pulley. The servo motor is fixedly arranged on the back surface of the fixed plate. The output end of the servo motor penetrates through the fixed plate and is fixedly connected with the driving synchronous pulley. The driven synchronous pulley is rotatably arranged on the front surface of the fixed plate. An annular synchronous belt is arranged between the driving synchronous pulley and the driven synchronous pulley. Clamping blocks are fixedly arranged on the back surfaces of the left telescopic cylinder and the right telescopic cylinder, and the two clamping blocks are respectively fixedly connected with the upper part and the lower part of the annular synchronous belt.

[0007] Further, the inverted M-edge device includes a rotary cylinder and a rotary dial. The output ends of the left telescopic cylinder and the right telescopic cylinder are both fixedly connected with mounting seats. A rotary cylinder is fixedly arranged on the mounting seat. The output end of the rotary cylinder is fixedly arranged with a rotary dial. Two fixed dials are arranged at the lower part of the mounting seat, and the two fixed dials are symmetrically arranged on the front and back sides of the rotary dial.

[0008] Further, the moving device includes two slide rails. Two slide rails are arranged in parallel on the front surface of the fixed plate. The left telescopic cylinder and the right telescopic cylinder are both fixedly provided with sliders that cooperate with the slide rails.

[0009] In summary, the utility model has the following beneficial effects:

[0010] By setting a synchronization device and a moving device, the utility model can make the left telescopic cylinder, the right telescopic cylinder and the two inverted M-edge devices approach and move away synchronously. The utility model is driven by a single motor, and uses an active synchronous pulley, an annular synchronous belt and a passive synchronous pulley to cooperate, driving the left telescopic cylinder and the right telescopic cylinder to perform linear motion along the slide rail and the slider, with high precision and good synchronization, ensuring the unified position of the two inverted M-edge devices, and the servo motor can start and stop at any time. Cooperating with the active synchronous pulley, the annular synchronous belt, the passive synchronous pulley, the slide rail and the slider, it has a large moving stroke, solving the situation that the cylinder stroke is fixed and cannot adapt to various bag widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following further describes the present utility model in detail with reference to the drawings and specific embodiments:

[0012] Figure 1 It is the front view of the initial state of an inverted M-edge mechanism for M-shaped packaging bags adaptable to various bag widths of the present utility model;

[0013] Figure 2 It is the front view of the working state of an inverted M-edge mechanism for M-shaped packaging bags adaptable to various bag widths of the present utility model;

[0014] Figure 3 It is the side view of the working state of an inverted M-edge mechanism for M-shaped packaging bags adaptable to various bag widths of the present utility model;

[0015] Figure 4 It is the structural diagram of the synchronization device of the present utility model;

[0016] Figure 5 It is the schematic diagram of the cooperation between the inverted M-edge device and the M-shaped packaging bag of the present utility model.

[0017] In the figure: 1 fixing plate, 2 left telescopic cylinder, 3 right telescopic cylinder, 4 slide rail, 5 slider, 6 servo motor, 7 active synchronous pulley, 8 passive synchronous pulley, 9 annular synchronous belt, 10 clamping block, 11 mounting seat, 12 rotary cylinder, 13 fixed dial, 14 rotary dial, 15 M-shaped packaging bag. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0019] The following is a further description of the present utility model in conjunction with the Figures 1-5 accompanying drawings:

[0020] An M-shaped packaging bag inverted M-edge mechanism adapted to multiple bag widths includes a fixed plate 1. On the front of the fixed plate 1, a left telescopic cylinder 2 and a right telescopic cylinder 3 are symmetrically arranged through a moving device. On the front of the fixed plate 1, a synchronization device for driving the left telescopic cylinder 2 and the right telescopic cylinder 3 to slide is provided. The output ends of the left telescopic cylinder 2 and the right telescopic cylinder 3 are both provided with inverted M-edge devices.

[0021] In this embodiment, the output ends of the left telescopic cylinder 2 and the right telescopic cylinder 3 drive the inverted M-edge devices to insert into or pull out of the M-shaped packaging bag 15 filled with materials through extension and contraction. The synchronization device drives the left telescopic cylinder 2, the right telescopic cylinder 3, and the two inverted M-edge devices to move outward synchronously along the moving device. The inverted M-edge devices cooperate with the sides of the M-shaped packaging bag 15 to perform inverted M-edge.

[0022] The synchronization device includes a servo motor 6, a driving synchronous pulley 7, and a driven synchronous pulley 8. The servo motor 6 is fixedly arranged on the back of the fixed plate 1. The output end of the servo motor 6 penetrates through the fixed plate 1 and is fixedly connected to the driving synchronous pulley 7. The driven synchronous pulley 8 is rotatably arranged on the front of the fixed plate 1. An annular synchronous belt 9 is arranged between the driving synchronous pulley 7 and the driven synchronous pulley 8. Clamping blocks 10 are fixedly arranged on the backs of the left telescopic cylinder 2 and the right telescopic cylinder 3. The two clamping blocks 10 are respectively fixedly connected to the upper part and the lower part of the annular synchronous belt 9.

[0023] The moving device includes two slide rails 4. Two slide rails 4 are arranged in parallel on the front of the fixed plate 1. The left telescopic cylinder 2 and the right telescopic cylinder 3 are both fixedly provided with sliders 5 that cooperate with the slide rails 4.

[0024] In this embodiment, the left telescopic cylinder 2 and the right telescopic cylinder 3 are respectively fixedly connected to the upper part and the lower part of the annular synchronous belt 9 between the driving synchronous pulley 7 and the driven synchronous pulley 8 through the clamping blocks 10. The servo motor 6 drives the driving synchronous pulley 7 to rotate forward or backward. The driving synchronous pulley 7 drives the driven synchronous pulley 8 to rotate synchronously through the annular synchronous belt 9. The left telescopic cylinder 2, the right telescopic cylinder 3, and the two inverted M-edge devices follow the annular synchronous belt 9 and approach or move away synchronously under the sliding cooperation of the slide rails 4 and the sliders 5.

[0025] The servo motor 6 of the present utility model cooperates with the driving synchronous pulley 7, the annular synchronous belt 9, the driven synchronous pulley 8, the slide rail 4 and the slider 5, having a relatively large moving stroke, and solving the problem that the stroke of the cylinder is fixed and cannot adapt to various bag widths.

[0026] The inverted M-edge device includes a rotary cylinder 12 and a rotary flap 14. The output ends of the left telescopic cylinder 2 and the right telescopic cylinder 3 are both fixedly connected with a mounting seat 11. The rotary cylinder 12 is fixedly arranged on the mounting seat 11. The output end of the rotary cylinder 12 is fixedly provided with the rotary flap 14. Two fixed flaps 13 are arranged at the lower part of the mounting seat 11, and the two fixed flaps 13 are symmetrically arranged on the front and rear sides of the rotary flap 14.

[0027] In this embodiment, as Figure 5 shown, the two fixed flaps 13 are located inside the M-shaped packaging bag 15, and are respectively used for folding the edges of the joint between the front wall and the side wall and the joint between the rear wall and the side wall of the M-shaped packaging bag 15. The rotary cylinder 12 drives the rotary flap 14 to rotate, and the rotary flap 14 acts on the middle position outside the side wall of the M-shaped packaging bag 15, and is used for folding the center position of the side wall of the M-shaped packaging bag 15 inward.

[0028] Figure 1 This is the initial state of the present utility model. At this time, the left telescopic cylinder 2 and the right telescopic cylinder 3 are close to each other, and the rotary cylinder 12 drives the rotary flap 14 to rotate to a state away from the fixed flap 13.

[0029] The M-shaped packaging bag 15 filled with materials moves to directly below this mechanism, and then the output ends of the left telescopic cylinder 2 and the right telescopic cylinder 3 extend simultaneously, driving the inverted M-edge device to move downward, and inserting the fixed flaps 13 into the top opening of the M-shaped packaging bag 15. Then the servo motor 6 rotates, driving the left telescopic cylinder 2 and the right telescopic cylinder 3 to move away synchronously under the sliding cooperation of the slide rail 4 and the slider 5 through the driving synchronous pulley 7, the annular synchronous belt 9 and the driven synchronous pulley 8, so that the fixed flaps 13 are close to the inner side wall of the M-shaped packaging bag 15. Then the rotary cylinder 12 drives the rotary flap 14 to rotate, and the rotary flap 14 rotates downward to contact the outer side wall of the M-shaped packaging bag 15, folding the center position of the side wall of the M-shaped packaging bag 15 inward. At the same time, the two fixed flaps 13 fold the edges of the joint between the front wall and the side wall and the joint between the rear wall and the side wall of the M-shaped packaging bag 15. The two fixed flaps 13 cooperate with the rotary flap 14 to form an M-edge on the side wall of the M-shaped packaging bag 15. At this time, the present utility model is in Figure 2 the working state.

[0030] After the inverted M-edge is finished, the rotating cylinder 12 first drives the rotating paddle 14 to rotate to a state away from the fixed paddle 13, and then the servo motor 6 rotates. Through the driving of the driving synchronous pulley 7, the annular synchronous belt 9 and the driven synchronous pulley 8, the left telescopic cylinder 2 and the right telescopic cylinder 3 move closer synchronously under the sliding fit of the slide rail 4 and the slider 5. Then, the output ends of the left telescopic cylinder 2 and the right telescopic cylinder 3 contract simultaneously, driving the inverted M-edge device to move upward, and the present utility model returns to Figure 1 the initial state.

[0031] In summary, the present utility model is not limited to the above specific embodiments. Those skilled in the art can make several changes and modifications on the premise of not departing from the spirit and scope of the present utility model. The protection scope of the present utility model shall be subject to the claims of the present utility model.

[0032] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this patent.

[0033] In the description of this patent, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific situations.

Claims

1. An M-shaped packaging bag inverted M-edge mechanism adaptable to multiple bag widths, characterized in that, It includes a fixed plate (1), on the front surface of the fixed plate (1), a left telescopic cylinder (2) and a right telescopic cylinder (3) are symmetrically arranged through a moving device, and a synchronous device for driving the left telescopic cylinder (2) and the right telescopic cylinder (3) to slide is arranged on the front surface of the fixed plate (1), and inverted M-edge devices are arranged at the output ends of the left telescopic cylinder (2) and the right telescopic cylinder (3).

2. The M-shaped packaging bag inverted M-edge mechanism adaptable to multiple bag widths according to claim 1, characterized in that, The synchronous device includes a servo motor (6), a driving synchronous pulley (7) and a driven synchronous pulley (8). The servo motor (6) is fixedly arranged on the back surface of the fixed plate (1). The output end of the servo motor (6) penetrates through the fixed plate (1) and is fixedly connected with the driving synchronous pulley (7). The driven synchronous pulley (8) is rotatably arranged on the front surface of the fixed plate (1). An annular synchronous belt (9) is arranged between the driving synchronous pulley (7) and the driven synchronous pulley (8). Clamping blocks (10) are fixedly arranged on the back surfaces of the left telescopic cylinder (2) and the right telescopic cylinder (3), and the two clamping blocks (10) are respectively fixedly connected with the upper part and the lower part of the annular synchronous belt (9).

3. The M-shaped packaging bag inverted M-edge mechanism adaptable to multiple bag widths according to claim 2, wherein, The inverted M-edge device includes a rotary cylinder (12) and a rotary flap (14). The output ends of the left telescopic cylinder (2) and the right telescopic cylinder (3) are both fixedly connected with mounting seats (11). The rotary cylinder (12) is fixedly arranged on the mounting seat (11). The output end of the rotary cylinder (12) is fixedly provided with the rotary flap (14). Two fixed flaps (13) are arranged at the lower part of the mounting seat (11), and the two fixed flaps (13) are symmetrically arranged on the front and back sides of the rotary flap (14).

4. The M-shaped packaging bag inverted M-edge mechanism adaptable to multiple bag widths according to claim 3, characterized in that, The moving device includes two slide rails (4). Two slide rails (4) are arranged in parallel on the front surface of the fixed plate (1). The left telescopic cylinder (2) and the right telescopic cylinder (3) are both fixedly provided with sliders (5) that cooperate with the slide rails (4).

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