Pressing mechanism of bag opening machine

Abstract

The utility model belongs to the technical field of bag opening machines, and relates to a material pressing mechanism of a bag opening machine, which comprises a material pressing base, a guide plate is fixed on the material pressing base, a guide groove is arranged on the guide plate, and the guide groove comprises a horizontal guide section on the rear side and a vertical guide section on the front side. The horizontal guide section and the vertical guide section are connected through an arc transition section, a driving shaft with the axis distributed in the horizontal direction is arranged in the guide groove in a sliding mode, a swing seat is fixed to the end of the driving shaft, a pressing plate assembly is fixed to the swing seat, and the driving shaft is driven by a power device to slide along the guide groove. The pressing plate assembly moves forwards when the pressing plate assembly slides along the horizontal stroke, and the pressing plate assembly moves downwards when the pressing plate assembly slides along the vertical stroke. The material pressing mechanism of the bag opening machine has the advantages of being simple in structure, small in occupied space, capable of saving energy and environmentally friendly.

Description

Technical Field

[0001] The utility model belongs to the technical field of bag-making machines, and relates to a pressing mechanism of a bag-making machine. Background Art

[0002] A bag-making machine is a common clothing processing device, mainly used to form pockets at specific positions on clothing for convenient carrying of small items. Existing bag-making machines generally include a pressing mechanism for pressing the fabric, a cloth folding mechanism for folding the fabric, a laser tube for cutting the fabric, and a sewing machine for sewing the fabric. For example, Chinese Patent Application for Invention CN 111575926A (Publication Date: August 25, 2020) discloses a bag-making machine for processing clothing bag openings, including a workbench and a sewing machine. A laser tube for cutting the bag opening is provided above the workbench. A material placing opening for placing the bag lip is provided on the workbench. A bag folding mechanism is provided on the upper cross beam above the material placing opening. A material positioning mechanism and a shaping mechanism connected together are slidably provided on the upper cross beam. By using the slidably provided material positioning mechanism and shaping mechanism on the upper cross beam, the material positioning mechanism clamps the clothing and sequentially enters the laser tube, the material placing opening, and the sewing machine station. The laser tube completes the cutting of the clothing bag opening position. The bag folding mechanism and the shaping mechanism cooperate to align the bag lip with the bag opening and turn and fold the bag. Finally, the sewing machine stitches the bag lip and the bag opening.

[0003] Its shaping mechanism further includes a shaping bracket connected to the material positioning mechanism and a shaping pressing plate for pressing down to shape the bag lip. An elevating seat capable of reciprocating up and down is provided on the shaping bracket and connected to a lifting assembly. A telescopic assembly is provided on the elevating seat. The telescopic assembly is drivingly connected to the shaping pressing plate, and the telescopic assembly can drive the shaping pressing plate to reciprocate back and forth. In order to complete the function of pressing and shaping, this shaping mechanism needs to be provided with a lifting assembly and a telescopic assembly and is driven by multiple driving parts. Its structure is complex, occupies a large space, and will also have an adverse impact on the overall size of the bag-making machine. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a pressing mechanism of a bag-making machine, which has the advantages of simple structure, small occupied volume, energy conservation and environmental protection.

[0005] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0006] A material pressing mechanism of a bag opening machine, comprising a material pressing base, a guide plate is fixed on the material pressing base, a guide groove is arranged on the guide plate, the guide groove includes a horizontal guide section at the rear side and a vertical guide section at the front side, the horizontal guide section and the vertical guide section are connected by an arc transition section, a driving shaft with an axis distributed in the horizontal direction is slidably arranged in the guide groove, a swing seat is fixed at the end of the driving shaft, a pressing plate assembly is fixed on the swing seat, the driving shaft is driven by a power device to slide along the guide groove, and when it slides along the horizontal stroke, the pressing plate assembly moves forward, and when it slides along the vertical stroke, the pressing plate assembly moves downward.

[0007] In the above-mentioned material pressing mechanism of a bag opening machine, the power device can use conventional devices in the art, such as a cylinder, and its driving method can also use conventional methods in the art, such as hinging the piston rod of the cylinder to the end of the driving shaft through a connecting rod structure.

[0008] In the above-mentioned material pressing mechanism of a bag opening machine, a driving plate driven by a power device to slide in the horizontal direction is arranged on one side of the guide plate, an inclined groove inclined downward from front to back is arranged on the driving plate, one end of the driving shaft slides in the guide groove, and the other end slides in the inclined groove. In the initial state, the driving shaft is located at the front end of the inclined groove and the rear end of the guide groove.

[0009] In the above-mentioned material pressing mechanism of a bag opening machine, an intermediate plate is arranged between the guide plate and the driving plate. The intermediate plate is slidably arranged on one side of the guide plate in the horizontal direction, the driving plate is slidably arranged on one side of the intermediate plate in the horizontal direction, and the driving shaft slides in the intermediate plate in the vertical direction.

[0010] In the above-mentioned material pressing mechanism of a bag opening machine, the driving shaft is arranged in a linear bearing seat and fixedly connected thereto. A linear bearing is arranged in the linear bearing seat. The intermediate plate is a rectangular ring, and a sliding rod distributed in the vertical direction is arranged on its inner ring. The linear bearing seat is slidably arranged on the sliding rod through the linear bearing; further, a plurality of the sliding rods are arranged in parallel.

[0011] In the above-mentioned material pressing mechanism of a bag opening machine, a rear side plate is arranged at the rear side of the material pressing base. A cylinder with a telescopic axis distributed in the horizontal direction is installed on the rear side plate. The piston rod of the cylinder is fixedly connected to a cylinder connecting plate, and the cylinder connecting plate is fixedly connected to the driving plate; the cylinder can also be replaced with other devices that can linearly drive the driving plate.

[0012] In the pressing mechanism of the above-mentioned bag-opening machine, a first horizontal slide rail is provided on one side of the guide plate, a first horizontal slider sliding on the first horizontal slide rail is provided on the side of the middle plate opposite thereto, a second horizontal slide rail is provided on the other side of the middle plate, and a second horizontal slider sliding on the second horizontal slide rail is provided on the side of the driving plate opposite thereto; further, a pair of first horizontal slide rails and second horizontal slide rails are provided.

[0013] In the pressing mechanism of the above-mentioned bag-opening machine, rolling friction members cooperating with the guide groove and the inclined groove are respectively sleeved on the driving shaft; further, the rolling friction members are selected from bearings and bushings; further, a snap ring for axially limiting each component is sleeved on the driving shaft.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] 1. The present utility model provides a pressing mechanism for a bag-opening machine, which adopts the combination of a driving shaft and a guide groove. By guiding the displacement direction of the driving shaft through the guide groove, when the power device drives the driving shaft, the driving shaft first moves forward and then moves downward, thereby driving the pressing plate assembly on the swing seat to first move forward and then move downward. Therefore, the present utility model only uses one power source to meet the pressing requirements of the pressing mechanism to move forward and downward. By reducing the power source, the structure of the present utility model is simpler, occupies less volume, and is more energy-saving and environmentally friendly.

[0016] 2. The present utility model further improves the driving structure of the pressing mechanism, uses the telescopic movement of the air cylinder to drive the horizontal displacement of the driving plate, and through the dual limiting effects of the guide groove and the inclined groove, the horizontal displacement of the driving plate is first converted into the horizontal displacement of the driving shaft through the guiding effect of the guide groove, and then converted into the vertical displacement of the driving shaft through the guiding effects of the inclined groove and the guide groove; further, the present utility model adds a middle plate to make the driving shaft have a stable displacement structure. Description of the Drawings

[0017] Figure 1 is a perspective view of the present utility model;

[0018] Figure 2 is a top view of the present utility model;

[0019] Figure 3 is a cross-sectional view of the present utility model;

[0020] Figure 4 is an exploded view of the present utility model;

[0021] Reference numerals: 1, blanking base; 2, guide plate; 3, guide groove; 4, horizontal guide section; 5, vertical guide section; 6, arc transition section; 7, drive shaft; 8, swing seat; 9, drive plate; 10, inclined groove; 11, intermediate plate; 12, linear bearing seat; 13, sliding rod; 14, rear side plate; 15, cylinder; 16, piston rod; 17, cylinder connecting plate; 18, first horizontal slide rail; 19, first horizontal slider; 20, second horizontal slide rail; 21, second horizontal slider; 22, rolling friction member. Detailed implementation manner

[0022] The following further describes the present utility model with specific embodiments in conjunction with the attached drawings. Refer to Figures 1-4 :

[0023] A blanking mechanism of a bag opening machine includes a blanking base 1. A rear side plate 14 is arranged at the rear of the blanking base 1. A guide plate 2 is fixed on the blanking base 1. An intermediate plate 11 is arranged on one side of the guide plate 2 and slides horizontally along one side. A drive plate 9 driven by a power device to slide horizontally is arranged on one side of the intermediate plate 11. Specifically, a first horizontal slide rail 18 is arranged on one side of the guide plate 2. A first horizontal slider 19 sliding on the first horizontal slide rail 18 is arranged on the opposite side of the intermediate plate 11. A second horizontal slide rail 20 is arranged on the other side of the intermediate plate 11. A second horizontal slider 21 sliding on the second horizontal slide rail 20 is arranged on the opposite side of the drive plate 9. In this embodiment, in order to make the sliding structure more stable, a pair of first horizontal slide rails 18 and second horizontal slide rails 20 are arranged.

[0024] The above drive plate 9 is driven by a cylinder 15. Specifically, a cylinder 15 with a telescopic axis distributed horizontally is installed on the rear side plate 14. The piston rod 16 of the cylinder 15 is fixedly connected to a cylinder connecting plate 17. The cylinder connecting plate 17 is fixedly connected to the drive plate 9. When the piston rod 16 of the cylinder 15 extends and retracts, it drives the cylinder connecting plate 17 and the drive plate 9 to slide horizontally. The cylinder 15 can also be replaced by other devices that can linearly drive the drive plate 9.

[0025] In this embodiment, the pressing plate assembly is fixed by a swing seat 8. When the swing seat 8 moves forward, the pressing plate assembly moves forward accordingly. When the swing seat 8 moves downward, the pressing plate assembly moves downward accordingly. The swing seat 8 of this embodiment moves together with the drive shaft 7. That is, when the drive shaft 7 moves forward, the swing seat 8 moves forward accordingly. When the drive shaft 7 moves downward, the swing seat 8 moves downward accordingly.

[0026] The specific assembly and driving structure of the drive shaft 7 of this embodiment is: the drive shaft 7 slides on the guide plate 2, the middle plate 11 and the drive plate 9 at the same time; specifically, the guide plate 2 is provided with a guide groove 3, and the guide groove 3 includes a horizontal guide section 4 on the rear side and a vertical guide section 5 on the front side, and the horizontal guide section 4 and the vertical guide section 5 are connected by an arc-shaped transition section 6, and the axis of the drive shaft 7 is distributed in the horizontal direction, and one end thereof is slidably set in the guide groove 3; the drive plate 9 is provided with an inclined groove 10 inclined downward from front to back, and the other end of the drive shaft 7 is slidably set in the inclined groove 10; the middle plate 11 is a rectangular ring, and the drive shaft 7 slides in the inner ring of the middle plate 11 along the vertical direction; in the initial state, the drive shaft 7 is located at the front end of the inclined groove 10, the rear end of the guide groove 3, and the upper end of the inner ring of the middle plate 11.

[0027] In this embodiment, the driving shaft 7 can slide stably through the intermediate plate 11, that is, the intermediate plate 11 is equivalent to a stable supporting structure for the driving shaft 7. Specifically, the driving shaft 7 is passed through a linear bearing seat 12 and is fixedly connected thereto. A linear bearing is arranged in the linear bearing seat 12. The inner ring of the intermediate plate 11 is provided with a sliding rod 13 distributed along the vertical direction. The linear bearing seat 12 is slidably arranged on the sliding rod 13 through the linear bearing; further, a plurality of sliding rods 13 are arranged in parallel.

[0028] Preferably, in order to make the drive shaft 7 slide more smoothly, the drive shaft 7 is respectively provided with rolling friction parts 22 that cooperate with the guide groove 3 and the inclined groove 10; further, the rolling friction parts 22 are selected from bearings and sleeves; further, the drive shaft 7 is provided with retaining springs of various axial limiting components, and each component includes bearings, sleeves, swing seats 8, etc.

[0029] Compare with Figure 1 To Attachment Figure 4, the working mode of this embodiment is as follows: In the initial state, the drive shaft 7 is in the rear upper position, and at this time, the pressure plate assembly is also in the rear upper position. When material pressing is required, the piston rod 16 of the cylinder 15 extends forward, and the cylinder connecting plate 17 drives the drive plate 9 to move forward. During the first stroke, due to the limiting and guiding effect of the horizontal guiding section 4 of the guiding groove 3, the drive shaft 7 can only move forward in the horizontal direction. At the same time, the relative positions of the drive shaft 7, the inclined groove 10 and the inner ring of the intermediate plate 11 remain unchanged. The drive shaft 7, the intermediate plate 11 and the drive plate 9 slide forward synchronously relative to the guiding plate 2. At this time, the material pressing assembly moves forward to above the fabric. At the end of the first stroke, the drive shaft 7, the swing seat 8 and the material pressing assembly are all in the front upper position. After the first stroke ends, the piston rod 16 of the cylinder 15 continues to extend forward to start the second stroke. Between the first stroke and the second stroke, the drive shaft 7 moves along the arc transition section. During the second stroke, the forward movement of the drive shaft 7 is blocked. Under the combined limiting and guiding effect of the inclined groove 10 and the vertical guiding section 5 of the guiding groove 3, the drive shaft 7 generates a downward displacement. The drive shaft 7 simultaneously moves obliquely downward along the inclined groove 10, downward along the vertical guiding section 5, and downward along the inner ring of the intermediate plate 11 together with the linear bearing seat 12. At the same time, the drive plate 9 continues to move forward relative to the guiding plate 2, and the intermediate plate 11 remains stationary relative to the guiding plate 2. At this time, the material pressing assembly moves downward to press the fabric tightly.

[0030] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A material pressing mechanism for a bag opening machine, including a material pressing base (1), characterized in that, A pressure material base (1) is fixed with a guide plate (2). A guide groove (3) is arranged on the guide plate (2). The guide groove (3) includes a horizontal guide section (4) at the rear side and a vertical guide section (5) at the front side. The horizontal guide section (4) and the vertical guide section (5) are connected by an arc transition section (6). A driving shaft (7) with an axis distributed in the horizontal direction is slidably arranged in the guide groove (3). An end of the driving shaft (7) is fixed with a swing seat (8). A pressing plate assembly is fixed on the swing seat (8). The driving shaft (7) is driven by a power device to slide along the guide groove (3). When it slides in the horizontal stroke, the pressing plate assembly moves forward. When it slides in the vertical stroke, the pressing plate assembly moves downward.

2. The material pressing mechanism of a bag opening machine according to claim 1, characterized in that, One side of the guide plate (2) is provided with a driving plate (9) driven by a power device to slide in the horizontal direction. An inclined groove (10) inclined downward from front to back is arranged on the driving plate (9). One end of the driving shaft (7) slides in the guide groove (3), and the other end slides in the inclined groove (10). In the initial state, the driving shaft (7) is located at the front end of the inclined groove (10) and the rear end of the guide groove (3).

3. The material pressing mechanism of a bag opening machine according to claim 2, characterized in that, An intermediate plate (11) is arranged between the guide plate (2) and the driving plate (9). The intermediate plate (11) is slidably arranged on one side of the guide plate (2) in the horizontal direction. The driving plate (9) is slidably arranged on one side of the intermediate plate (11) in the horizontal direction. The driving shaft (7) slides in the intermediate plate (11) in the vertical direction.

4. The material pressing mechanism of a bag opening machine according to claim 3, characterized in that, The driving shaft (7) is arranged in a linear bearing seat (12) and fixedly connected with it. A linear bearing is arranged in the linear bearing seat (12). The intermediate plate (11) is a rectangular ring. A sliding rod (13) distributed in the vertical direction is arranged on its inner ring. The linear bearing seat (12) is slidably arranged on the sliding rod (13) through the linear bearing.

5. The pressing mechanism of a bag opening machine according to claim 2, characterized in that, A rear side plate (14) is arranged at the rear side of the pressure material base (1). An air cylinder (15) with a telescopic axis distributed in the horizontal direction is installed on the rear side plate (14). A piston rod (16) of the air cylinder (15) is fixedly connected with an air cylinder connecting plate (17). The air cylinder connecting plate (17) is fixedly connected with the driving plate (9).

6. The material pressing mechanism of a bag opening machine according to claim 3, characterized in that, A first horizontal slide rail (18) is arranged on one side of the guide plate (2). A first horizontal slider (19) slidably arranged on the first horizontal slide rail (18) is arranged on the opposite side of the intermediate plate (11). A second horizontal slide rail (20) is arranged on the other side of the intermediate plate (11). A second horizontal slider (21) slidably arranged on the second horizontal slide rail (20) is arranged on the opposite side of the driving plate (9).

7. The material pressing mechanism of a bag opening machine according to claim 3, characterized in that Rolling friction members (22) matched with the guide groove (3) and the inclined groove (10) are respectively sleeved on the driving shaft (7).

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