Fabric folding and cutting device of bag making machine

Abstract

The invention relates to the technical field of fabric processing equipment, and discloses a fabric folding and cutting device of a bag making machine. And the feeding and cutting mechanism is fixedly mounted above the rear end of the rack and is used for feeding the end of the fabric backwards and cutting the fabric after the fabric is folded. The fabric bending mechanism is arranged at the rear end of the cutter, the fabric bending mechanism comprises two sets of clamping plates, and the two sets of clamping plates are switched between a clamping state and a loosening state through a two-way air cylinder. And the folding mechanism is arranged above the rack. Fabric is clamped and then conveyed backwards through the feeding and cutting mechanism, the ends of the fabric are clamped and then bent and lifted through the two sets of clamping plates, the fabric is folded through the inserting plate and then cut off through the cutter, rapid equidistant cutting is achieved, rapid bag making can be achieved after the folded fabric is taken away through a follow-up station, and the equipment does not need manual operation, is compact in structure and convenient to operate and has high practicability. The working efficiency is improved, and the practical effect is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fabric processing equipment, in particular to a fabric folding and cutting device for gift packaging bag production. BACKGROUND

[0002] Packaging bags are used to carry goods, and gift bags are made of soft fabric. Some gift packaging bags are formed by folding a piece of fabric in half, sealing the opposite edges, leaving an opening, and forming a bag body.

[0003] In the existing packaging bag making process, the fabric needs to be cut after being folded in half. However, the folding process is complex, and most of the existing production processes use semi-automatic equipment, with a large proportion of manual work and low automation. Therefore, a fully automatic device is needed to solve this problem. SUMMARY

[0004] Therefore, it is necessary to provide a fabric folding and cutting device for processing gift packaging bags based on the above background technology.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a fabric folding and cutting device for a bag making machine, comprising a rack, a conveying roller group and a tensioning rod are arranged at the front end of the rack, a plurality of groups of rolling rods are arranged on the upper end of the rack.

[0006] A feeding and cutting mechanism is fixedly installed on the upper side of the rear end of the rack, which is used to feed the fabric end to the rear and cut it after folding;

[0007] The feeding and cutting mechanism comprises a movable frame reciprocally movable along the displacement direction of the fabric, a movable bottom plate is fixedly arranged at the bottom of the movable frame, a liftable pressing plate is arranged above the movable bottom plate, the pressing plate cooperates with the movable bottom plate to clamp the fabric end, and a cutting knife is arranged at the rear end of the movable frame for cutting the fabric.

[0008] A fabric bending mechanism is arranged at the rear end of the cutting knife, wherein the fabric bending mechanism comprises two groups of clamping plates, the two groups of clamping plates are transformed between the clamping state and the loosening state by a double-acting cylinder, the two groups of clamping plates are arranged to be displaceable along the fabric conveying direction, liftable and rotatable, and are used to pull the fabric end backward, rotate the fabric end upward by 90 degrees and then lift it.

[0009] A folding mechanism is arranged above the rack, wherein the folding mechanism comprises a plug plate reciprocally movable along the fabric conveying direction, the plug plate can pass through the pressing plate and the movable bottom plate, and fold the fabric.

[0010] By adopting the technical scheme, the fabric is conveyed by the conveying roller set, the fabric is clamped and conveyed to the fabric bending mechanism by the feeding and cutting mechanism, the fabric end is bent upward by the fabric bending mechanism, the fabric is folded by the folding mechanism, and the fabric is cut by the cutter, so that automatic cutting production of the single fabric of the gift packaging bag is realized.

[0011] In a preferred example, the feeding and cutting mechanism further comprises a mounting frame, second rails are arranged on the inner walls of the mounting frame and along the fabric conveying direction, the movable frame is slidably installed on the second rails through sliding blocks, a first air cylinder is fixedly arranged on the top of the movable frame, the first air cylinder drives the pressing plate to lift, a second air cylinder is fixedly arranged on the bottom of the mounting frame, and the second air cylinder drives the movable bottom plate to displace forward and backward along the second rails.

[0012] By adopting the technical scheme, the fabric end can be clamped by lifting, and the fabric end is conveyed in the fabric conveying direction.

[0013] In a preferred example, the mounting frame further comprises a third air cylinder fixedly arranged on the top of the mounting frame, the third air cylinder drives the cutter to lift, sliding rails are arranged on the two ends of the cutter and fixedly arranged on the mounting frame, the two ends of the cutter are slidably installed on the sliding rails through sliding blocks, and a cutter seat is fixedly arranged on the rear end of the mounting frame and below the cutter.

[0014] By adopting the technical scheme, the cutter lifting is more stable.

[0015] In a preferred example, the fabric bending mechanism further comprises two mounting plates arranged at the two ends of the clamping plate, a second motor is fixedly installed on the mounting plate, two bidirectional air cylinders are arranged at the two ends of the clamping plate, the two bidirectional air cylinders are rotationally connected with the two mounting plates respectively, the output end of the second motor is connected with the bidirectional air cylinders, the bidirectional air cylinders are driven to rotate, and the mounting plate is displaced and lifted along the fabric conveying direction.

[0016] By adopting the technical scheme, the clamping plate clamps the fabric end clamped by the feeding and cutting mechanism, and is displaced in the fabric conveying direction, the clamping plate is rotated to drive the fabric end to be upwardly bent, and the fourth air cylinder is lifted to facilitate subsequent folding.

[0017] In a preferred example, the fabric bending mechanism further comprises second rail plates fixedly installed on the two sides of the feeding and cutting mechanism, first rail plates are slidably installed on the outer walls of the second rail plates through rails, the first rail plates are lifted by fourth air cylinders installed on the bottom of the second rail plates, the outer walls of the first rail plates are slidably installed with the mounting plates through rails, and the mounting plates are reciprocally displaced along the fabric conveying direction by fifth air cylinders.

[0018] By adopting the technical scheme, the displacement of the clamping plate is realized.

[0019] The application can be further configured in a preferred example as follows: the folding mechanism further comprises a bracket fixed above the frame, a driving member for driving displacement of the insertion plate is arranged on the bracket, a sliding plate is arranged at the tail end of the insertion plate, the sliding plate is in transmission connection with the driving member, first rails are arranged on both sides above the frame, and the sliding plate is slidably installed on the first rails through sliding blocks.

[0020] By adopting the above technical scheme, the fabric clamped by the clamping plate is folded through the expansion and contraction of the insertion plate.

[0021] The application can be further configured in a preferred example as follows: the driving member comprises a first motor fixedly installed on the bracket, a transmission belt arranged along the fabric conveying direction, the transmission belt is driven to rotate by the first motor, the sliding plate is in connection with the transmission belt, and the sliding plate is connected with the insertion plate through a connecting rod.

[0022] By adopting the above technical scheme, the insertion plate can be displaced by a larger distance.

[0023] In summary, the application has at least one of the following beneficial technical effects:

[0024] The fabric is clamped by the feeding and cutting mechanism and then conveyed backward, the fabric end is clamped by two sets of clamping plates and then bent and lifted upward, the fabric is folded by the insertion plate, and then cut by the cutter, so that fast equidistant cutting is realized, and the folded fabric can be taken away by the subsequent work station, so that fast bag making is realized, the device does not need manual operation, has compact structure, improves work efficiency, and has good practical effect. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the application, and constitute a part of the specification, together with the embodiments of the application, to explain the application, and do not constitute a limitation on the application, in the drawings:

[0026] Figure 1 is a structural schematic view of the application;

[0027] Figure 2 is a structural schematic view of the feeding and cutting mechanism and the fabric bending mechanism separated from the whole machine in the application;

[0028] Figure 3 is a structural schematic view of the feeding and cutting mechanism and the fabric bending mechanism in the application;

[0029] Figure 4 is a structural schematic view of the feeding and cutting mechanism in the application;

[0030] Figure 5 is a side view of the feeding and cutting mechanism in the application;

[0031] Figure 6 Figure 1 is a structural schematic diagram of the fabric bending mechanism in the application.

[0032] In the drawings:

[0033] 1, rack; 11, conveying roller group; 12, tensioning rod; 13, rolling rod group; 14, first track; 2, folding mechanism; 21, support; 22, first motor; 23, sliding plate; 24, transmission belt; 25, plug-in plate; 26, connecting rod; 3, feeding and cutting mechanism; 31, mounting frame; 32, movable bottom plate; 33, movable frame; 34, pressing plate; 35, first cylinder; 36, second track; 37, second cylinder; 38, third cylinder; 39, cutter; 310, cutter seat; 4, fabric bending mechanism; 41, clamping plate; 42, bidirectional cylinder; 43, second motor; 44, mounting plate; 45, first track plate; 46, fourth cylinder; 47, fifth cylinder; 48, second track plate. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0035] In Figures 1-6 In the embodiment shown, the application provides a technical solution: a fabric folding and cutting device of a bag making machine, which comprises a rack 1, the front end (fabric entry end) of the rack 1 is provided with a conveying roller group 11 and a tensioning rod 12, and the upper end of the rack 1 is provided with a plurality of groups of rolling rod groups 13 distributed at equal intervals.

[0036] The feeding and cutting mechanism 3 is fixedly installed above the rear end (fabric output end) of the rack 1, which is used for feeding the fabric end head backward and cutting the fabric after it is folded;

[0037] The feeding cutting mechanism 3 comprises a mounting frame 31, a movable frame 33 reciprocally movable along the fabric displacement direction, second rails 36 arranged along the fabric conveying direction on the inner wall of the mounting frame 31, the movable frame 33 being slidably mounted on the second rails 36, an active bottom plate 32 fixedly arranged at the bottom of the movable frame 33, a press plate 34 arranged above the active bottom plate 32 and being liftable, the press plate 34 clamping the fabric end with the active bottom plate 32, a first air cylinder 35 fixedly arranged at the top of the movable frame 33 and driving the press plate 34 to lift, a second air cylinder 37 fixedly arranged at the bottom of the mounting frame 31 and driving the active bottom plate 32 to reciprocally move along the second rails 36, a cutter 39 arranged at the rear end of the movable frame 33 and used for cutting the fabric, a third air cylinder 38 fixedly arranged at the top of the mounting frame 31 and driving the cutter 39 to lift, slide rails fixedly arranged at the mounting frame 31 and at the two ends of the cutter 39, and the cutter 39 being slidably mounted on the slide rails, and a cutter seat 310 fixedly arranged at the rear end of the mounting frame 31 and below the cutter 39.

[0038] The fabric bending mechanism 4 is arranged at the rear end of the cutter 39, and comprises two sets of clamping plates 41, two second rail plates 48 fixedly arranged at the two side ends of the mounting frame 31, a first rail plate 45 slidably mounted on the outer wall of the second rail plate 48, the first rail plate 45 being liftable by a fourth air cylinder 46 arranged at the bottom of the second rail plate 48, the first rail plate 45 being slidably mounted on the outer wall of the mounting plate 44 by a rail, and the mounting plate 44 being reciprocally movable along the fabric conveying direction by a fifth air cylinder 47. A second motor 43 is fixedly arranged on the mounting plate 44, the two sets of clamping plates 41 being switched between the clamping state and the releasing state by a bidirectional air cylinder 42 arranged at the two ends of the clamping plate 41, the two bidirectional air cylinders 42 being rotatably connected to the two mounting plates 44, the output end of the second motor 43 being connected to one of the bidirectional air cylinders 42 and driving the bidirectional air cylinder 42 to rotate, and the mounting plate 44 being movable along the fabric conveying direction and liftable.

[0039] The two sets of clamping plates 41 are movable along the fabric conveying direction, liftable, and rotatable, and are used for pulling the fabric end rearward and rotating the fabric end upward by 90 degrees and then lifting the fabric end.

[0040] The folding mechanism 2 is arranged above the rack 1, and comprises a support 21 fixedly arranged above the rack 1 and an insertion plate 25 reciprocally movable along the fabric conveying direction, the insertion plate 25 being capable of passing through the press plate 34 and the active bottom plate 32 and folding the fabric clamped by the clamping plate 41.

[0041] The first motor 22 is arranged on the support 21 and used to drive the displacement of the inserting plate 25, the transmission belt 24 is arranged along the fabric conveying direction, the transmission belt 24 is driven to rotate by the first motor 22, the sliding plate 23 is arranged at the tail end of the inserting plate 25, the sliding plate 23 is connected with the transmission belt 24, the first rail 14 is arranged on the upper side of the rack 1, the sliding plate 23 is slidably arranged on the first rail 14 through the sliding block, and the sliding plate 23 is connected with the inserting plate 25 through the connecting rod 26.

[0042] The specific working principle of the application will be described in detail below: when in use, the fabric enters from the conveying roller group 11, is flattened and conveyed, passes under the tensioning rod 12, enters above the rolling rod group 13 and is conveyed backward. The fabric passes between the pressing plate 34 and the movable bottom plate 32, the first cylinder 35 drives the pressing plate 34 to cooperate with the movable bottom plate 32 to clamp the fabric, and the second cylinder 37 is displaced towards the two groups of clamping plates 41.

[0043] The clamping plates 41 are in an initial state of being opened and parallel to each other, the two clamping plates 41 clamp the fabric end head delivered through the bidirectional cylinder 42, the pressing plate 34 is loosened from clamping the fabric through the first cylinder 35 and is reset, the fifth cylinder 47 displaces the clamped fabric end head backward, the second motor 43 drives the clamped fabric end head to turn upward by 90 degrees, and the fourth cylinder 46 drives the clamped fabric end head to rise.

[0044] The first motor 22 drives the transmission belt 24 to rotate, the inserting plate 25 is displaced backward through the sliding plate 23, the inserting plate 25 passes above the fabric and passes between the pressing plate 34 and the movable bottom plate 32, the fabric end head is clamped by the clamping plates 41, the inserting plate 25 pushes the fabric out of the equipment, and the fabric is folded, the feeding amount of the inserting plate 25 determines the length of the fabric folding, the inserting plate 25 is reset after being clamped by the gripper of a subsequent process (not shown in the figure).

[0045] The pressing plate 34 is clamped again by the first cylinder 35 in cooperation with the movable bottom plate 32, the third cylinder 38 drives the cutter 39 to cut the fabric, the clamping plates 41 are loosened from the fabric, the cut fabric is taken away by the gripper of a subsequent process, and the clamping plates 41 are reset for recycling.

[0046] Although the embodiments of the application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A fabric folding and cutting device for a bag making machine, comprising a frame (1), wherein a conveying roller group (11) and a tensioning rod (12) are provided at the front end of the frame (1), and multiple sets of equidistantly distributed rolling rod groups (13) are installed at the upper end of the frame (1), characterized in that: The feeding and cutting mechanism (3) is fixedly installed above the rear end of the frame (1) and is used to feed the fabric end backward and cut it after the fabric is folded in half. The feeding and cutting mechanism (3) includes a movable frame (33) that can move back and forth along the fabric displacement direction. The movable frame (33) has a movable base plate (32) fixed at the bottom. A liftable pressure plate (34) is provided above the movable base plate (32). The pressure plate (34) works with the movable base plate (32) to clamp the fabric end. A cutter (39) for cutting the fabric is provided at the rear end of the movable frame (33). Fabric bending mechanism (4) is located at the rear end of the cutter (39). The fabric bending mechanism (4) includes two sets of clamping plates (41). The two sets of clamping plates (41) are switched between clamping and releasing states by a bidirectional cylinder (42). The two sets of clamping plates (41) can be displaced, raised and lowered, and rotated along the fabric conveying direction. They are used to pull the fabric end backward and rotate the fabric end upward by 90 degrees before raising it. A folding mechanism (2) is disposed above the frame (1). The folding mechanism (2) includes an insert plate (25) that moves back along the fabric conveying direction. The insert plate (25) can pass through the pressure plate (34) and the movable bottom plate (32) and fold the fabric in half.

2. The fabric folding and cutting device for a bag making machine according to claim 1, characterized in that: The feeding and cutting mechanism (3) also includes a mounting frame (31). The inner walls of the mounting frame (31) are provided with second tracks (36) arranged along the fabric conveying direction. The movable frame (33) is slidably mounted on the second track (36) by a slider. The top of the movable frame (33) is fixedly provided with a first cylinder (35). The first cylinder (35) drives the pressure plate (34) to rise and fall. The bottom of the mounting frame (31) is fixedly provided with a second cylinder (37). The second cylinder (37) drives the movable base plate (32) to move back and forth along the second track (36).

3. The fabric folding and cutting device for a bag making machine according to claim 2, characterized in that: The top of the mounting bracket (31) is fixedly provided with a third cylinder (38), which drives the cutter (39) to rise and fall. The cutter (39) has slide rails fixed on the mounting bracket (31) at both ends, and the cutter (39) is slidably mounted on the slide rails by sliders at both ends. The cutter (39) has a cutter holder (310) fixedly installed at the rear end of the mounting bracket (31) below the cutter (39).

4. The fabric folding and cutting device for a bag making machine according to claim 1, characterized in that: The fabric bending mechanism (4) also includes two mounting plates (44) set at both ends of the clamping plate (41). A second motor (43) is fixedly mounted on the mounting plate (44). The bidirectional cylinder (42) is set at both ends of the clamping plate (41). The two bidirectional cylinders (42) are rotatably connected to the two mounting plates (44) respectively. The output end of the second motor (43) is connected to the bidirectional cylinder (42) and drives the bidirectional cylinder (42) to rotate. The mounting plate (44) moves and rises along the fabric conveying direction.

5. The fabric folding and cutting device for a bag making machine according to claim 4, characterized in that: The fabric bending mechanism (4) further includes a second track plate (48) fixedly installed on both sides of the feeding and cutting mechanism (3). A first track plate (45) is slidably installed on the outer wall of the second track plate (48) via a track. The first track plate (45) is raised and lowered by a fourth cylinder (46) installed at the bottom of the second track plate (48). The outer wall of the first track plate (45) is slidably installed on the mounting plate (44) via a track. The mounting plate (44) is moved back along the fabric conveying direction by a fifth cylinder (47).

6. The fabric folding and cutting device for a bag making machine according to claim 1, characterized in that: The folding mechanism (2) also includes a bracket (21) fixed above the frame (1). The bracket (21) is provided with a driving component for driving the displacement of the insert plate (25). The tail end of the insert plate (25) is provided with a sliding plate (23). The sliding plate (23) is connected to the driving component. The upper sides of the frame (1) are provided with a first track (14). The two ends of the sliding plate (23) are slidably mounted on the first track (14) by sliders.

7. The fabric folding and cutting device for a bag making machine according to claim 6, characterized in that: The driving component includes a first motor (22) fixedly mounted on a bracket (21) and a transmission belt (24) laid along the fabric conveying direction. The transmission belt (24) is driven to rotate by the first motor (22). The sliding plate (23) is connected to the transmission belt (24). The sliding plate (23) is connected to the insert plate (25) through a connecting rod (26).

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