Bag production device and application thereof in bag production

Abstract

The invention relates to the technical field of cutting equipment, provides a bag production device and application of the bag production device in bag production, and solves the problems that an existing flat plate type cutting machine is large in occupied area and cannot flexibly use multi-specification production. The fabric cutting device comprises a rack and a cutting part which is arranged on the rack and used for cutting fabric. The arc-shaped placing plate is arranged on one side of the rack and used for flattening the fabric, and the cross section of the arc-shaped placing plate extends downwards in a curved mode and curls inwards; the curve rails are symmetrically arranged on the two sides of the arc-shaped placing plate; the clamping part is arranged on the arc-shaped placing plate and used for clamping and loosening one end of the fabric, and the two ends of the clamping part are arranged in the curve rails in a sliding mode; a traditional horizontal placing plate is changed into an arc-shaped downward and inward-rolled curved surface, and a main working area of equipment is changed from a horizontal plane to a vertical plane, so that the floor space occupied by the equipment in a workshop is greatly reduced, and the space utilization rate is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cutting equipment, in particular to a production device for bags and its application in bag production. BACKGROUND

[0002] In the production and manufacturing process of bags (such as travel bags, backpacks, canvas bags, etc.), fabric cutting is a crucial first process, and the precision and efficiency of cutting directly affect the quality and production cost of the product. At present, the flat cutting machine is widely used in the industry. Such equipment usually includes a large-area workbench placed horizontally, a movable cutting head set above the workbench, and a vacuum adsorption system for fixing the fabric. During operation, single or multiple layers of fabric are laid flat on the workbench, the vacuum adsorption system is started to fix them, and then the cutting head is controlled by the numerical control system to complete the cutting according to the preset path.

[0003] However, this traditional flat cutting scheme has inherent defects, especially in meeting the needs of small and medium-sized bag production enterprises for production space utilization and operational flexibility: the horizontally laid large-area workbench requires a large amount of production workshop floor space, which constitutes a significant site cost and space layout problem for small and medium-sized factories or studios with limited space. The floor area occupied by the equipment is much larger than its effective processing area, resulting in extremely uneconomical space utilization; when cutting parts of different lengths is required, it is inconvenient to adjust, usually requiring replacement or re-setting of parameters in the numerical control program, which is not intuitive and quick enough for small-batch, multi-specification flexible production mode.

[0004] Therefore, it is urgent to develop a new type of bag production device that can significantly reduce the floor area and better adapt to flexible production needs to overcome the above-mentioned shortcomings of existing flat cutting technology. SUMMARY

[0005] Therefore, in view of the above problems, the present application provides a production device for bags and its application in bag production, which solves the problems of large floor area and inability to use multiple specifications flexibly of existing flat cutting machines.

[0006] To achieve the above-mentioned purpose, the present application is realized by the following technical scheme: A production device for bags, comprising a rack and a cutting component for slitting fabric arranged on the rack, further comprising: An arc-shaped placement plate is arranged on one side of the rack for flattening the fabric, and the cross section of the arc-shaped placement plate is curved downward and inward; Curved tracks are symmetrically arranged on both sides of the arc-shaped placement plate; The clamping component is arranged on the arc-shaped placement plate and used for clamping and releasing one end of the fabric, two ends of the clamping component are slidably arranged in the curved track, the clamping component comprises a movable rod, a clamping cylinder arranged above the movable rod, a fixed rod arranged below the movable rod, and a fixed block arranged on the fixed rod in a sleeved manner, and a through slot is arranged on the arc-shaped placement plate corresponding to each fixed block; At least one length positioning block is arranged in each curved track, and the length positioning block is movable and fixed along the curved track; A negative pressure adsorption component, a plurality of adsorption holes are distributed on the surface of the arc-shaped placement plate, and the adsorption holes are connected with the negative pressure adsorption component; A controller is electrically connected with the clamping component and the negative pressure adsorption component; A foot switch is electrically connected with the controller, and the foot switch is configured to send a first signal to the controller when triggered for the first time, and the controller controls the negative pressure adsorption component to start and makes the clamping component execute a clamping action; the foot switch is configured to send a second signal to the controller when triggered for the second time, and the controller controls the negative pressure adsorption component to stop and makes the clamping component execute a releasing action.

[0007] Further, the length positioning blocks in each curved track are connected through the fixed rods, and at least one scale is arranged on the outer side of the curved track.

[0008] Further, a limiting plate is arranged on one side of each fixed block.

[0009] Further, the driving component for driving the clamping component to move back and forth along the curved track comprises a toothed track arranged on the outer side of each curved track, a driving gear arranged in one toothed track, a driven gear arranged in the other toothed track, a connecting rod connecting the driving gear and the driven gear, and a driving motor connected with the driving gear, and the foot switch is further configured to drive the clamping component to move to contact the length positioning block and then stop when triggered for the first time, and drive the clamping component to return to the initial position along the curved track after a preset delay when triggered for the second time.

[0010] Further, the cutting component comprises a blade and a pressing cylinder arranged on the blade, the pressing cylinder is electrically connected with the controller, and the foot switch is configured to execute a pressing movement by the pressing cylinder when triggered for the second time, and then the negative pressure adsorption component is closed and the clamping component executes a releasing action.

[0011] Further, the preset delay is in the range of 2 to 5 seconds.

[0012] Further, the negative pressure adsorption component comprises an adsorption cavity arranged on the back of the arc-shaped placement plate, a negative pressure pipe connected with the adsorption cavity, and a negative pressure pump connected with the negative pressure pipe.

[0013] Further, one end of the arc-shaped placement plate is connected with one side of the rack, and the other end of the arc-shaped placement plate is connected with the bottom of the rack.

[0014] Further, the rack comprises four vertical columns arranged at the corners of the cutting component respectively, at least one positioning bolt is arranged on each side of the cutting component, and a bolt hole is arranged on each vertical column in an interval, and each bolt passes through the vertical column to fix the cutting component.

[0015] Based on the application of the bag production device in bag production, the following steps are included. S1, feeding and positioning: one end of the fabric used for producing the bag is placed between the movable rod and the fixed block of the clamping component; S2, adsorption and clamping fixation: the foot switch is triggered for the first time, and after the controller receives the first signal, the following instructions are executed synchronously or in sequence: the negative pressure adsorption component is started to adsorb and fix the fabric on the arc-shaped placement plate through the adsorption hole; and the clamping cylinder is controlled to act, the movable rod is driven to press down, and the fixed block below clamps one end of the fabric together, the clamping component is dragged to slide along the curved rail until it contacts or reaches the length positioning block position that has been preset, and the fabric is laid flat on the surface of the arc-shaped placement plate; S3, cutting processing: the cutting component cuts the fabric that has been fixed firmly; S4, unloading: the foot switch is triggered for the second time, and after the controller receives the second signal, the following instructions are executed synchronously or in sequence: the clamping cylinder is controlled to reset, the movable rod is lifted to release the fabric, and the negative pressure adsorption component is turned off; the cut bag component slides downward along the curved surface of the arc-shaped placement plate under the action of gravity, and the unloading is completed.

[0016] Compared with the prior art, the present application has the following beneficial effects: The present application greatly reduces the occupation of the device to the workshop ground space, improves the space utilization rate by changing the traditional horizontal placement plate to the arc downward and inward curved surface, and changing the main working area of the device from the horizontal plane to the vertical plane; the operation process is greatly simplified, the manual intervention is reduced, and the production efficiency is improved by integrating the originally dispersed fixing steps (suction, clamping) in one trigger action through the foot switch unified control of the coordinated action of the negative pressure suction and clamping components; the fixing effect is more reliable, especially for smooth or thin fabric, effectively preventing displacement during cutting, and ensuring cutting accuracy by combining negative pressure suction (overall fixing) and mechanical clamping (end fixing); the arc design enables the cut piece to automatically slide under the action of gravity after cutting, without manual picking, realizing continuous production and further improving efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the embodiment one of the present application; Figure 2 It is a cutting component structure schematic view of the embodiment one of the present application; Figure 3 It is a rack setting structure schematic view of the embodiment one of the present application; Figure 4 It is a curved rail setting structure schematic view of the embodiment one of the present application; Figure 5 It is Figure 4 It is an enlarged structure schematic view of A in the middle; Figure 6 It is a through slot setting structure schematic view of the embodiment one of the present application; Figure 7 It is a driving component connection relationship structure schematic view of the embodiment one of the present application.

[0018] Explanation of the attached drawings: Rack 1; stand column 11; positioning bolt 12; bolt hole 13; Cutting component 2; blade 21; downward pressing air cylinder 22; knife groove 23; Arc-shaped placement plate 3; through slot 31; Curved rail 4; Clamping component 5; clamping air cylinder 51; movable rod 52; fixed rod 53; fixed block 54; connecting block 55; limiting plate 56; sliding groove 57; Length positioning block 6; bolt 61; Negative pressure suction component 7; suction cavity 71; negative pressure pipe 72; negative pressure pump 73; suction hole 74; Driving component 8; rack 81; driving gear 82; driven gear 83; connecting rod 84; driving motor 85; Controller 9; Foot switch 10. Detailed Implementation

[0019] The following will describe in detail the implementation of the present invention with reference to specific embodiments, so that the process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0020] Example 1: As Figures 1 to 7 As shown, this embodiment provides a bag production device, which is mainly used for cutting bag fabrics such as leather, canvas, and nylon. The device includes a frame 1, a cutting component 2, an arc-shaped placement plate 3, a curved rail 4, a clamping component 5, a length positioning block 6, a negative pressure adsorption component 7, a driving component 8, a controller 9, and a foot switch 10.

[0021] The frame 1 includes four columns 11 respectively located at the corners of the cutting component 2. Two positioning pins 12 are provided on both sides of the cutting component 2. Each column 11 has a pin hole 13 spaced apart. Each pin 12 passes through the column 11 and is fixed to the cutting component 2.

[0022] The cutting component 2 includes a blade 21 and a pressing cylinder 22 disposed on the blade 21. The frame 1 is provided with a groove 23 corresponding to the blade 21.

[0023] The arc-shaped placement plate 3 is fixed to one side of the frame 1. Its cross-section is a downward-extending arc shape that curls inward to form a curved surface. One end of the arc-shaped placement plate 3 is connected to one side of the frame 1, and the other end of the arc-shaped placement plate 3 is connected to the bottom of the frame 1.

[0024] The two curved rails 4 are symmetrically installed on both sides of the arc-shaped placement plate 3, and their curvature is adapted to the curvature of the arc-shaped placement plate 3.

[0025] The clamping component 5 includes a clamping cylinder 51, a movable rod 52, and a fixed rod 53. Multiple fixed blocks 54 are spaced apart on the fixed rod 53. The movable rod 52 is parallel to and located above the fixed rod 53, connected to the piston rod of the clamping cylinder 51. Connecting blocks 55 are provided on both sides of the movable rod 52 and the fixed rod 53. Each connecting block 55 is slidably disposed within the curved track 4. Each connecting block 55 has a sliding groove 57 for the movable rod 52 to slide. A through groove 31 is provided on the arc-shaped placement plate 3 corresponding to the position of each fixed block 54, allowing the fixed block 54 to be partially embedded in the through groove 31 without affecting the surface flatness of the arc-shaped placement plate 3. A limit plate 56 is integrally formed on one side of each fixed block 54 for limiting the fabric end.

[0026] The length positioning block 6 is slidably arranged in the curved track 4, and one side of the length positioning block 6 is connected with a bolt 61 which penetrates the length positioning block 6 and abuts against the curved track 4 to fix the position of the length positioning block 6 on the curved track 4. The number of the length positioning blocks 6 is two, which are respectively used for adjusting the starting position of the clamping component 5 and the cutting position of the clamping component 5. The outer sides of the two curved tracks 4 are provided with scales for indicating the cutting length.

[0027] The driving component 8 is used for driving the clamping component 5 to move back and forth along the curved track 4. The driving component 8 comprises a rack 81 arranged on the outer side of each curved track 4, a driving gear 82 arranged in one rack 81, a driven gear 83 arranged in the other rack 81, a connecting rod 84 connecting the driving gear 82 and the driven gear 83, and a driving motor 85 connected with the driving gear 82.

[0028] The negative pressure adsorption component 7 comprises an adsorption cavity 71 arranged on the back of the arc-shaped placement plate 3, a negative pressure pipe 72 connected with the adsorption cavity 71, and a negative pressure pump 73 connected with the negative pressure pipe 72. The surface of the arc-shaped placement plate 3 is uniformly distributed with adsorption holes 74 which are in communication with the adsorption cavity 71. The adsorption cavity 71 is arranged between the adjacent through grooves 31 and does not interfere with the movement of the fixing rod 53 and the fixing block 54.

[0029] The controller 9 is electrically connected with the clamping cylinder 51, the pressing cylinder 22, the negative pressure pump 73, the driving motor 85, and the foot switch 10. The controller 9 adopts one of a programmable logic controller (PLC), an industrial single-chip microcomputer (MCU), or an industrial computer (IPC). In the embodiment, the PLC is preferably adopted. When the clamping component 5 contacts the length positioning block 6, the movement of the clamping component 5 is blocked because the length positioning block 6 is fixed. At this time, the driving motor 85 causes the working current to rise due to the sharp increase of the load. The controller 9 detects that the current value exceeds the preset threshold value and sends a stop command to the driving motor 85 to stop the operation.

[0030] The foot switch 10 is configured to send a first signal to the controller 9 when it is triggered for the first time. The controller 9 controls the negative pressure adsorption component 7 to start and makes the clamping component 5 perform the clamping action. Then, the controller 9 controls the driving component 8 to drive the clamping component 5 to move to contact the length positioning block and then stop. When the foot switch 10 is triggered for the second time, a second signal is sent to the controller 9. The pressing cylinder 22 performs the pressing movement. Then, the controller 9 controls the negative pressure adsorption component 7 to close and makes the clamping component 5 perform the releasing action. After a preset delay of 3 seconds, the driving component 8 drives the clamping component 5 to return to the initial position along the curved track 4. The foot switch is an industrial-grade mechanical foot switch which preferably has single-way normally open contacts or double-way switching contacts. In the embodiment, the double-way foot switch with two independent pedals is adopted.

[0031] Embodiment two: application of the bag production device based on embodiment one in bag production, including the following steps: S1, feeding and positioning: placing one end of the fabric used for producing bags between the movable rod 52 and the fixed block 54 of the clamping component 5; S2, adsorption and clamping fixation: triggering the foot switch 10 for the first time, after the controller 9 receives the first signal, the following instructions are executed synchronously or in sequence: starting the negative pressure adsorption component 7, so that the fabric is adsorbed and fixed on the arc-shaped placement plate 3 through the adsorption hole 74; and controlling the clamping cylinder 51 to act, driving the movable rod 52 to press down, clamping the end of the fabric together with the fixed block 54 below, dragging the clamping component 5 to slide along the curved rail 4 until it contacts or reaches the length positioning block 6 position that has been preset, so that the fabric is laid flat on the surface of the arc-shaped placement plate 3; S3, cutting processing: the cutting component 2 cuts the fabric that has been firmly fixed; S4, unloading: triggering the foot switch 10 for the second time, after the controller 9 receives the second signal, the following instructions are executed synchronously or in sequence: controlling the clamping cylinder 51 to reset, so that the movable rod 52 rises to release the fabric; and turning off the negative pressure adsorption component 7; the cut bag component slides down along the curved surface of the arc-shaped placement plate 3 under the action of gravity, completing the unloading.

[0032] Although the present application is specifically shown and described in connection with preferred embodiments, those skilled in the art will appreciate that various modifications in form and detail can be made without departing from the spirit and scope of the application as defined by the appended claims.

Claims

1. An apparatus for producing a bag, comprising a frame and a cutting member provided on the frame for slitting a fabric, characterized in that, Also comprising: An arc-shaped placement plate is arranged on one side of the frame and used for flattening the fabric. The cross section of the arc-shaped placement plate extends downward and curves inward. Curved tracks are symmetrically arranged on both sides of the arc-shaped placement plate. A clamping component is arranged on the arc-shaped placement plate and used for clamping and releasing one end of the fabric. The two ends of the clamping component are slidingly arranged in the curved tracks. The clamping component comprises a movable rod, a clamping cylinder arranged above the movable rod, a fixed rod arranged below the movable rod, and a fixed block arranged on the fixed rod in a sleeved manner. The arc-shaped placement plate is provided with a through slot corresponding to each fixed block. At least one length positioning block is arranged in each curved track. The length positioning block can move along the curved track and be fixed. A negative pressure suction component is arranged on the surface of the arc-shaped placement plate. The suction holes are connected with the negative pressure suction component. A controller is electrically connected with the clamping component and the negative pressure suction component. A foot switch is electrically connected with the controller. When the foot switch is triggered for the first time, the controller sends a first signal to the controller, controls the negative pressure suction component to start, and makes the clamping component perform a clamping action. When the foot switch is triggered for the second time, the controller sends a second signal to the controller, controls the negative pressure suction component to stop, and makes the clamping component perform a releasing action.

2. A device for producing a bag according to claim 1, characterized in that: The length positioning blocks in each curved track are connected through the fixed rod. At least one scale is arranged on the outer side of the curved track.

3. The apparatus for producing a bag according to claim 1, wherein: A limiting plate is arranged on one side of each fixed block.

4. The apparatus for producing a bag according to claim 1, wherein: A driving component is further arranged for driving the clamping component to move back and forth along the curved track. The driving component comprises a toothed track arranged on the outer side of each curved track, a driving gear arranged in one toothed track, a driven gear arranged in the other toothed track, a connecting rod connecting the driving gear and the driven gear, and a driving motor connected with the driving gear. When the foot switch is triggered for the first time, the driving component drives the clamping component to move to the length positioning block and then stop. When the foot switch is triggered for the second time, after a preset time delay, the driving component drives the clamping component to return to the initial position along the curved track.

5. A device for producing a bag according to claim 4, characterized in that: The cutting component comprises a blade and a pressing cylinder arranged on the blade. The pressing cylinder is electrically connected with the controller. When the foot switch is triggered for the second time, the pressing cylinder performs a pressing movement, and then the negative pressure suction component stops and the clamping component performs a releasing action.

6. A device for producing a bag according to claim 5, characterized in that: The preset time delay ranges from 2 to 5 seconds.

7. The apparatus for producing a bag according to claim 1, wherein: The negative pressure suction component comprises a suction cavity arranged on the back of the arc-shaped placement plate, a negative pressure pipe connected with the suction cavity, and a negative pressure pump connected with the negative pressure pipe. The suction cavity is arranged between adjacent through slots.

8. The apparatus for producing a bag according to claim 1, wherein: One end of the arc-shaped placement plate is connected with one side of the frame, and the other end of the arc-shaped placement plate is connected with the bottom of the frame.

9. The apparatus for producing a bag according to claim 1, wherein: The frame comprises four vertical columns arranged at the corners of the cutting component. At least one positioning pin is arranged on both sides of the cutting component. Pin holes are arranged on the vertical columns at intervals. The pins pass through the vertical columns and are fixed with the cutting component.

10. Use of the apparatus for producing a bag according to claim 1 in the production of bags, characterized in that, The method comprises the following steps: S1, loading and positioning: one end of the fabric used for producing the bag is placed between the movable rod and the fixed block of the clamping component; S2, adsorption and clamping: the foot switch is triggered for the first time, and after the controller receives the first signal, the following instructions are executed synchronously or in sequence: the negative pressure adsorption component is started to adsorb and fix the fabric on the arc-shaped placement plate through the adsorption hole; the clamping cylinder is controlled to act, the movable rod is driven to press down, and the fabric is clamped together with the fixed block below, the clamping component is dragged to slide along the curved rail until it contacts or reaches the length positioning block position which has been preset, and the fabric is laid flat on the surface of the arc-shaped placement plate; S3, cutting processing: the clamped fabric is cut by the cutting component; S4, unloading: the foot switch is triggered for the second time, and after the controller receives the second signal, the following instructions are executed synchronously or in sequence: the clamping cylinder is controlled to reset, the movable rod is lifted to release the fabric, and the negative pressure adsorption component is turned off; the cut bag component slides down along the curved surface of the arc-shaped placement plate under the action of gravity, and the unloading is completed.

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