Bag making machine bottom folding mechanism

Abstract

The application discloses a bag making machine bottom folding mechanism convenient to adjust, which has a hub, the hub comprises a hub body and a first rotating frame, a first bottom folding groove is arranged on the hub body, and a second bottom folding groove is arranged on the first rotating frame, characterized in that the mechanism comprises a first rotating shaft connected with the output end of a first motor, the first rotating shaft is connected with a first plate base, a first folding knife is installed on the first plate base, the first folding knife can be matched with the first bottom folding groove, the mechanism further comprises a second rotating shaft connected with the output end of a second motor, the second rotating shaft is connected with a second plate base, a second folding knife is installed on the second plate base, and the second folding knife can be matched with the second bottom folding groove. The application can realize automatic control and adjustment of the positions of two folding knives, replace the traditional manual disassembly and adjustment mode, make the adjustment operation simpler, and further improve the adjustment efficiency and precision.

Description

TECHNICAL FIELD

[0001] The present application relates to a bag making machine, in particular to a folding bottom mechanism of a bag making machine which is convenient to adjust. BACKGROUND

[0002] The bag making machine is a kind of equipment specially used for automatic production of packaging bags. One kind of packaging bag needs to pass through the folding bottom mechanism for folding bottom processing of the packaging bag in the production process. The folding bottom mechanism generally includes two folding knives, and the two folding knives are installed on corresponding mounting seats, and the two mounting seats are arranged on a rotating seat. The rotating seat is driven to rotate by a control motor, cooperates with a wheel hub, and then the two folding knives are inserted into corresponding folding bottom grooves in the wheel hub to complete the folding bottom processing. The defect of this structure is that as the specifications of the produced packaging bags change, the spacing of the folding bottom grooves on the wheel hub also needs to be adjusted to adapt to the specifications of the packaging bags. At this time, the spacing of the two folding knives also needs to be adjusted. Therefore, the two mounting seats need to be manually disassembled and then installed at appropriate positions. The adjustment operation is very troublesome and time-consuming and laborious. SUMMARY

[0003] In view of the deficiencies in the background art, the technical problem to be solved by the present application is to provide a folding bottom mechanism of a bag making machine which is convenient to adjust and solves the above problems.

[0004] To this end, the present application is implemented by adopting the following scheme:

[0005] The folding bottom mechanism of the bag making machine which is convenient to adjust has a wheel hub. The wheel hub includes a wheel hub body and a first rotating frame. The wheel hub body is provided with a first folding bottom groove, and the first rotating frame is provided with a second folding bottom groove. The folding bottom mechanism is characterized in that it comprises a first rotating shaft connected with the output end of a first motor, the first rotating shaft is rotatably arranged on a left wall plate, the first rotating shaft is connected with a first plate seat, the first plate seat is provided with a first folding knife which can cooperate with the first folding bottom groove, the folding bottom mechanism further comprises a second rotating shaft connected with the output end of a second motor, the second rotating shaft is rotatably arranged on a right wall plate, the second rotating shaft is connected with a second plate seat, and the second plate seat is provided with a second folding knife which can cooperate with the second folding bottom groove.

[0006] A first bearing is sleeved on the first rotating shaft, and a rotating cylinder is arranged at one end of the second rotating shaft in an extending manner, and the first bearing rotatably supports the rotating cylinder.

[0007] One end of the first plate seat is arranged on a first transmission arm, one end of the first transmission arm is fixed on the first rotating shaft, one end of the second plate seat is arranged on a second transmission arm, and one end of the second transmission arm is fixed on the second rotating shaft.

[0008] The other end of the first plate base is arranged on a first mounting arm, one end of the first mounting arm is sleeved on a second rotating shaft, the other end of the second plate base is arranged on a second mounting arm, one end of the second mounting arm is sleeved on the first rotating shaft.

[0009] One end of the first plate base is connected with a first swing arm, the other end of the first swing arm is provided with a first transmission part, the first transmission part is located in a first guide groove on a first guide base, one end of the second plate base is connected with a second swing arm, the other end of the second swing arm is provided with a second transmission part, the second transmission part is located in a second guide groove on a second guide base.

[0010] The first rotating shaft is rotationally arranged in a first movable base, the second rotating shaft is rotationally arranged in a second movable base, and the first movable base and the second movable base are connected with corresponding movement driving assemblies.

[0011] The first movable base is connected with a piston rod of a first cylinder, the second movable base is connected with a piston rod of a second cylinder, a cylinder body of the first cylinder is arranged on a left wall plate, and a cylinder body of the second cylinder is arranged on a right wall plate.

[0012] The above technical solution of the bag making machine bottom folding mechanism convenient to adjust, by setting the first motor and the second motor corresponding to control the action of the first plate base and the second plate base, when the normal bottom folding work, can control the first motor and the second motor drive the first plate base and the second plate base to move, so that the two folding knives can be used for bottom folding processing, when the specification of the packaging bag changes, the first motor and the second motor can drive the first plate base and the second plate base to move to the appropriate position respectively, adjust the interval and position of the first folding knife and the second folding knife to adapt to the specification of the packaging bag, and then realize the automatic control and adjustment of the folding knife position, the adjustment operation is simpler, instead of the traditional manual disassembly and adjustment mode, and the adjustment efficiency and precision are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] The present application has the following drawings:

[0014] Figure 1 It is a structural schematic diagram of the present application;

[0015] Figure 2 It is Figure 1 It is a local enlarged view of the A direction in the figure;

[0016] Figure 3 It is Figure 1 It is a view from another angle;

[0017] Figure 4 It is Figure 3 It is a local enlarged view of the A direction in the figure. DETAILED DESCRIPTION

[0018] As shown in the figure, the disclosed bag making machine bottom folding mechanism for easy adjustment has a hub 5, the hub 5 includes a hub body 5 and a first rotating frame 31, the hub body 5 is provided with a first bottom folding groove 6, and the first rotating frame 31 is provided with a second bottom folding groove 33, wherein the first rotating frame can adjust the initial angle according to the size of the packaging bag, and then adjust the distance between the first and second bottom folding grooves to adapt to the size of the packaging bag, which belongs to the prior art and is not the innovation point of the present application, so it will not be described here. A bag body clamping assembly 34 is also provided on the hub for clamping the bag body and moving the bag body with the hub, which also belongs to the prior art and will not be described here. It also includes a first rotating shaft 20 connected to the output end of the first motor 1, the first rotating shaft 20 is rotatably arranged on the left wall plate 34, the first rotating shaft 20 is connected with the first plate seat 14, the first plate seat 14 is provided with the first folding knife 15, the first folding knife 15 is matched with the first bottom folding groove 6, and the second rotating shaft 23 is connected to the output end of the second motor 4, the second rotating shaft 23 is rotatably arranged on the right wall plate 7, the second rotating shaft 23 is connected with the second plate seat 18, the second plate seat 18 is provided with the second folding knife 17, and the second folding knife 17 is matched with the second bottom folding groove 33. Further, the first rotating shaft 20 is provided with a first bearing, one end of the second rotating shaft 23 is provided with a rotating cylinder 25, the first bearing rotatably supports the rotating cylinder 25, so that the rotation of the first and second rotating shafts is more stable, and the required space is reduced, so that the internal arrangement is more compact. One end of the first plate seat 14 is arranged on the first transmission arm 13, one end of the first transmission arm 13 is fixed on the first rotating shaft 20, the first rotating shaft 20 drives the first transmission arm 13 to swing, which in turn drives the first plate seat 14 and the first folding knife 15 to swing in an arc shape. One end of the second plate seat 18 is arranged on the second transmission arm 26, one end of the second transmission arm 26 is fixed on the second rotating shaft 23, the second rotating shaft 23 rotates to drive the second transmission arm 26 to swing, which in turn drives the second plate seat 18 and the second folding knife 17 to swing in an arc shape. Further, the other end of the first plate seat 14 is arranged on the first mounting arm 24, one end of the first mounting arm 24 is sleeved on the second rotating shaft 23, realizing the swing support of the first plate seat 14, the other end of the second plate seat 18 is arranged on the second mounting arm 19, one end of the second mounting arm 19 is sleeved on the first rotating shaft 20, realizing the swing support of the second plate seat 18, so that the stability of the first and second plate seats is improved.One end of the first plate seat 14 is connected with the first swing arm 12, the other end of the first swing arm 12 is provided with the first transmission member 11, the first transmission member 11 is located in the first guide groove 10 on the first guide seat 9, one end of the second plate seat 18 is connected with the second swing arm 27, the other end of the second swing arm 27 is provided with the second transmission member 28, the second transmission member 28 is located in the second guide groove 30 on the second guide seat 29, through the above structure, when the first and second plate seats swing, the first and second swing arms are driven to move, and the first and second guide grooves drive the first and second transmission members to drive the first and second swing arms to swing, and the first and second plate seats are rotated, so that the first and second folding knives can be rotated to the appropriate angle and then stably inserted into the folding bottom groove 6 on the bag conveying roller 5. The first rotating shaft 20 is rotatably arranged in the first movable seat 8, the second rotating shaft 23 is rotatably arranged in the second movable seat 22, the first and second movable seats are connected with the corresponding moving drive assemblies, specifically, the first movable seat 8 is connected with the piston rod of the first cylinder 21, the second movable seat 22 is connected with the piston rod of the second cylinder 3, the cylinder body of the first cylinder is arranged on the left wall plate 34, and the cylinder body of the second cylinder is arranged on the right wall plate 7. Through the above structure, the first and second movable seats can be driven to move by controlling the first and second cylinders, so that the whole folding knife mechanism is away from the bag conveying roller 5, and then the collision between the first and second plate seats and the bag conveying roller 5 during position adjustment is avoided, and after adjustment, the first and second movable seats are reset by controlling the first and second cylinders, so that subsequent folding bottom operation can be carried out.

[0019] The working principle of the present application is that: the packaging bag is sent to the folding knife mechanism by the bag conveying roller 5, the first and second rotating shafts are simultaneously rotated by the first and second motors, the first rotating shaft 20 drives the first plate seat 14 to move, so that the first folding knife 15 is inserted into the first folding bottom groove 6 to fold the bottom of the packaging bag, and the second rotating shaft 23 drives the second plate seat 18 to move, so that the second folding knife 17 is inserted into the second folding bottom groove 33 to fold the bottom of the packaging bag. When the specification of the packaging bag changes, the first motor 1 can be controlled alone to drive the first rotating shaft 20 to rotate to the appropriate angle, so as to adjust the starting position of the first plate seat 14, and the second motor 4 can also be controlled alone to drive the second rotating shaft 23 to rotate to the appropriate angle, so as to adjust the starting position of the second plate seat 18. The position adjustment of the first and second plate seats does not interfere with each other, and the adjustment of the distance and position of the first and second folding knives is completed, which is suitable for the specification of the packaging bag.

[0020] The structure of the present application can realize automatic control and adjustment of the folding knife position, the adjustment operation is simpler, the traditional manual disassembly and adjustment mode is replaced, and the adjustment efficiency and precision are improved.

Claims

1. An easily adjustable bottom-folding mechanism for a bag-making machine, comprising a hub, the hub including a hub body (5) and a first rotating frame (31), wherein the hub body (5) is provided with a first bottom-folding groove (6) and the first rotating frame (31) is provided with a second bottom-folding groove (33), characterized in that: The system includes a first rotating shaft (20) connected to the output end of a first motor (1), which is rotatably mounted on a left wall panel (35). The first rotating shaft (20) is connected to a first plate base (14), on which a first folding blade (15) is mounted. The first folding blade (15) can cooperate with a first folding groove (6). The system also includes a second rotating shaft (23) connected to the output end of a second motor (4), which is rotatably mounted on a right wall panel (7). (23) Connected to the second plate base (18), the second plate base (18) is equipped with a second folding knife (17), the second folding knife (17) can cooperate with the second folding bottom groove (33), one end of the first plate base (14) is set on the first transmission arm (13), one end of the first transmission arm (13) is fixed on the first rotating shaft (20), one end of the second plate base (18) is set on the second transmission arm (26), one end of the second transmission arm (26) is fixed on the second rotating shaft (23).

2. The easily adjustable bag-making machine bottom-folding mechanism according to claim 1, characterized in that... The first shaft (20) is fitted with a first bearing, and the second shaft (23) has a rotating cylinder (25) extending from one end. The first bearing provides rotational support for the rotating cylinder (25).

3. The easily adjustable bag-making machine bottom-folding mechanism according to claim 1, characterized in that... The other end of the first plate base (14) is set on the first mounting arm (24), one end of the first mounting arm (24) is fitted on the second rotating shaft (23), the other end of the second plate base (18) is set on the second mounting arm (19), and one end of the second mounting arm (19) is fitted on the first rotating shaft (20).

4. The easily adjustable bag-making machine bottom-folding mechanism according to claim 1, characterized in that... One end of the first plate base (14) is connected to the first swing arm (12), and the other end of the first swing arm (12) is provided with a first transmission member (11). The first transmission member (11) is located in the first guide groove (10) on the first guide seat (9). One end of the second plate base (18) is connected to the second swing arm (27), and the other end of the second swing arm (27) is provided with a second transmission member (28). The second transmission member (28) is located in the second guide groove (30) on the second guide seat (29).

5. The easily adjustable bag-making machine bottom-folding mechanism according to claim 1, characterized in that... The first rotating shaft (20) is rotatably disposed in the first movable seat (8), and the second rotating shaft (23) is rotatably disposed in the second movable seat (22). The first and second movable seats are connected to the corresponding mobile drive components.

6. The easily adjustable bag-making machine bottom-folding mechanism according to claim 5, characterized in that... The first movable seat (8) is connected to the piston rod of the first cylinder (21), the second movable seat (22) is connected to the piston rod of the second cylinder (3), the cylinder body of the first cylinder (21) is set on the left wall plate (35), and the cylinder body of the second cylinder (3) is set on the right wall plate (7).

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