Woven bag folding device

Abstract

The present invention relates to the technical field of woven bag production equipment, and in particular to a woven bag folding device, which can extend into the bag mouth of the woven bag through two inner support rods, and open and align the bag mouth of the woven bag to both sides, and then through two movable support rods, the two sides of the bag mouth of the woven bag are folded inwards, and finally the whole circle of the bag mouth of the woven bag is folded inwards. The whole process is mechanically automated, which not only shortens the processing time, but also has reliable quality, significantly improves production efficiency, and reduces production costs.

Description

Technical Field

[0001] The invention relates to the technical field of woven bag production equipment, and in particular to a woven bag folding device. Background Art

[0002] After the mouth of the double-layer woven bag is aligned, the mouth of the bag needs to be folded inward and then hot pressed. When the mouth of the woven bag is folded inward, the mouth of the bag needs to be opened first, and then the bag corners on both sides are folded inward, and then pulled outward to be aligned. This process is currently mostly done manually, which is inconvenient to operate, has low quality, high energy consumption, and high cost. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to solve the technical problems of low inner folding quality and high energy consumption of the above-mentioned woven bag mouth, the present invention provides a woven bag mouth folding device.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a folding device for a woven bag, including two inner support rods arranged opposite to each other, the two inner support rods can extend into the bag mouth of the woven bag, and stretch and align the bag mouth of the woven bag to both sides, the inner support rods are connected to an inner support rod driving mechanism, the inner support rod driving mechanism is arranged on a frame, two movable support rods are arranged opposite to each other, the two movable support rods are respectively arranged on the outsides of the two inner support rods, the two movable support rods can fold the outsides of both sides of the stretched and aligned woven bag mouth inwards, and then stretch the bag mouth of the woven bag to both sides, finally making the bag mouth of the woven bag fold inwards in a circle to form an inner folded edge, the movable support rods are connected to a movable support rod driving mechanism, and the movable support rod driving mechanism is arranged on a fixed plate.

[0005] Furthermore, in order to facilitate the opening of the woven bag and to facilitate the movement of the support rod to fold the two sides of the bag opening inward, the opposite sides of the two inner support rods are the inner sides of the inner support rods, and the inner support rods are L-shaped plate structures, which include a vertical connection plate and a horizontal inner support plate, the rear end of the horizontal inner support plate and the bottom of the vertical connection plate are perpendicular to each other and are an integrated structure, the front end of the horizontal inner support plate is folded outward to form a folded edge, and the folded edge is folded backward to form a retaining edge, and a U-shaped groove is formed between the retaining edge and the inner support plate, and a folding groove is provided on the retaining edge, the folding groove and the U-shaped groove are connected, the width direction of the folding groove and the width direction of the U-shaped groove are perpendicular to each other, and the vertical connection plate is connected to the inner support rod driving mechanism. The folding groove of the inner support rod can facilitate the movement of the support rod close to the inner support rod to press the two sides of the woven bag inward, and the U-shaped groove facilitates the folding of the two sides of the bag opening of the woven bag inward, plays a guiding role, and makes the folding action more accurate. The folding groove can also facilitate moving the support rod to align the folded woven bag opening to both sides.

[0006] Preferably, the groove depth of the folded groove is consistent with the length of the rib.

[0007] Further, specifically, the internal support rod driving mechanism includes two first connecting plate cylinders and two second connecting plate cylinders, the telescopic ends of the two first connecting plate cylinders are correspondingly installed on the sides of the connecting plates in two vertical directions, the two first connecting plate cylinders are installed back to back, the two first connecting plate cylinders can drive the two inner support rods to move toward or away from each other, the telescopic ends of the two second connecting plate cylinders are correspondingly connected to the cylinder bodies of the two first connecting plate cylinders, the cylinder bodies of the second connecting plate cylinders are fixedly installed on the frame, and the second connecting plate cylinders can correspondingly drive the first connecting plate cylinders to move forward and backward.

[0008] Furthermore, in order to cooperate with the structure of the inner support rod and facilitate the folding of the woven bag mouth, two movable support rods are respectively arranged on the outer sides of the corresponding inner support rods. The movable support rod includes a folding plate and a folding connecting plate. The folding plate is a horizontal straight plate structure. The folding plate and the inner support plate are parallel. The front end of the folding plate can move horizontally and can pass through the folding groove during the horizontal movement. The rear end of the folding plate is fixedly connected to the upper end of the folding connecting plate, and the lower end of the folding connecting plate is connected to the movable support rod driving mechanism.

[0009] Further, specifically, the movable strut driving mechanism includes two first movable strut cylinders, two second movable strut cylinders and two third movable strut cylinders, the telescopic ends of the two first movable strut cylinders are respectively connected to the corresponding folding connecting plates, the two first movable strut cylinders are installed back to back, the telescopic ends of the two second movable strut cylinders are respectively fixedly connected to the cylinder bodies of the two first movable strut cylinders, the telescopic ends of the two third movable strut cylinders are respectively fixedly connected to the cylinder bodies of the two second movable strut cylinders, and the two third movable strut cylinders are respectively fixedly installed on the fixed plate through cylinder supports.

[0010] Furthermore, in order to facilitate the overall movement of the two movable struts, the woven bag folding device also includes a fixed plate moving mechanism, the fixed plate moving mechanism includes a slide rail fixed on the belt, the slide rail is slidably fitted with a slider, the fixed plate is fixedly mounted on the slider, and the belt is mounted on the driving gear and the driven gear.

[0011] The beneficial effect of the present invention is that the folding device of the woven bag of the present invention can extend into the bag mouth of the woven bag through two inner support rods, and stretch and align the bag mouth of the woven bag to both sides, and then through two movable support rods, the two sides of the bag mouth of the woven bag are folded inward, and finally the whole circle of the bag mouth of the woven bag is folded inward. The whole process is mechanically automated, which not only shortens the processing time but also ensures quality, significantly improves production efficiency, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1It is a schematic diagram of the structure of a woven bag after the woven bag folding device of the present invention is folded.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the folding device of a woven bag of the present invention.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the folding device of a woven bag of the present invention.

[0016] Figure 4 It is a structural schematic diagram of the inner support rod of the folding device of the woven bag of the present invention.

[0017] In the figure: 100, woven bag, 101, inner folding edge, 1, inner support rod, 11, connecting plate, 12, inner support plate, 13, folding edge, 14, retaining edge, 15, U-shaped groove, 16, folding groove, 2, movable support rod, 21, folding plate, 22, folding connecting plate, 3, frame, 4, fixed plate, 51, first connecting plate cylinder, 52, second connecting plate cylinder, 61, first movable support rod cylinder, 62, second movable support rod cylinder, 63, third movable support rod cylinder, 64, cylinder support, 71, slide rail, 72, slider. DETAILED DESCRIPTION

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0019] like Figure 1-4 As shown, it is the optimal embodiment of the present invention, a folding device for a woven bag, including two inner support rods 1 arranged opposite to each other, the two inner support rods 1 can extend into the bag mouth of the woven bag, and stretch and align the bag mouth of the woven bag to both sides, the inner support rod 1 is connected with an inner support rod driving mechanism, and the inner support rod driving mechanism is arranged on a frame 3, two oppositely arranged movable support rods 2, the two movable support rods 2 are respectively arranged on the outer sides of the two inner support rods 1, the two movable support rods 2 can fold the outer sides of the stretched and aligned woven bag mouth inwards, and then stretch the woven bag mouth to both sides, finally making the bag mouth of the woven bag fold inwards in a circle to form an inner folding edge 101, the movable support rod 2 is connected with a movable support rod driving mechanism, and the movable support rod driving mechanism is arranged on a fixed plate 4.

[0020] The sides opposite to the two inner support rods 1 are the inner sides of the inner support rods 1. The inner support rods 1 are L-shaped plate structures, which include a vertical connection plate 11 and a horizontal inner support plate 12. The rear end of the horizontal inner support plate 12 and the bottom of the vertical connection plate 11 are perpendicular to each other and are an integral structure. The front end of the horizontal inner support plate 12 is folded outward to form a folded edge 13, and the folded edge 13 is folded backward to form a retaining edge 14. A U-shaped groove 15 is formed between the retaining edge 14 and the inner support plate 12. A folding groove 16 is provided on the retaining edge 14. The folding groove 16 is connected to the U-shaped groove 15. The width direction of the folding groove 16 is perpendicular to the width direction of the U-shaped groove 15. The vertical connection plate 11 is connected to the inner support rod driving mechanism. The groove depth of the folding groove 16 is consistent with the length of the retaining edge 14.

[0021] The inner support rod driving mechanism includes two first connecting plate cylinders 51 and two second connecting plate cylinders 52. The telescopic ends of the two first connecting plate cylinders 51 are correspondingly installed on the sides of the two vertical connecting plates 11. The two first connecting plate cylinders 51 can drive the two inner support rods 1 to move toward or away from each other. The two first connecting plate cylinders 51 are respectively installed on the outer sides of the connecting plates 11 in the vertical direction. The two first connecting plate cylinders 51 are arranged opposite to each other. The telescopic ends of the two second connecting plate cylinders 52 are correspondingly connected to the cylinder bodies of the two first connecting plate cylinders 51. The cylinder bodies of the second connecting plate cylinders 52 are fixedly installed on the frame 3. The second connecting plate cylinders 52 can correspondingly drive the first connecting plate cylinders 51 to move forward and backward.

[0022] The two movable struts 2 are respectively arranged on the outer sides of the corresponding inner struts 1. The movable struts 2 include a folding plate 21 and a folding connecting plate 22. The folding plate 21 is a horizontal straight plate structure. The folding plate 21 is parallel to the inner support plate 12. The front end of the folding plate 21 can move horizontally and can pass through the folding groove 16 during the horizontal movement. The rear end of the folding plate 21 is fixedly connected to the upper end of the folding connecting plate 22, and the lower end of the folding connecting plate 22 is connected to the movable strut driving mechanism.

[0023] The mobile strut driving mechanism includes two first mobile strut cylinders 61, two second mobile strut cylinders 62 and two third mobile strut cylinders 63. The telescopic ends of the two first mobile strut cylinders 61 are respectively connected to the corresponding folding connecting plates 22. The two first mobile strut cylinders 61 are installed opposite to each other. The telescopic ends of the two second mobile strut cylinders 62 are respectively fixedly connected to the cylinder bodies of the two first mobile strut cylinders 61. The second mobile strut cylinders 62 control the up and down movement in the vertical direction. The telescopic ends of the two third mobile strut cylinders 63 are respectively fixedly connected to the cylinder bodies of the two second mobile strut cylinders 62. The two third mobile strut cylinders 63 are respectively fixedly installed on the fixed plate 4 through cylinder supports 64. The third mobile strut cylinder 63 controls the forward and backward movement in the horizontal direction.

[0024] The woven bag folding device also includes a fixed plate moving mechanism, which includes a slide rail 71 fixed on the belt, a slider 72 is slidably mounted on the slide rail 71, and the fixed plate 4 is fixedly mounted on the slider 72. The belt is sleeved on the driving gear and the driven gear. The driving gear is connected to the motor, and the fixed plate moving mechanism is used to control the horizontal left and right movement of the fixed plate 4.

[0025] Working principle: After the woven bag 100 is aligned at the bag mouth alignment station, it is transported to the woven bag folding device through the conveying device. The bag mouth of the woven bag 1 is just fitted on the front end of the inner support plate 12 of the two inner support rods 1. The extension length of the telescopic end of the second connecting plate cylinder 52 can be adjusted. The length of the front end of the inner support plate 12 of the inner support rod 1 extending into the bag mouth of the woven bag 100. The two first connecting plate cylinders 51 are arranged relatively to control the distance between the inner support plates 12 of the inner support rod 1, that is, to control the tension degree of the two inner support plates 12 on the bag mouth of the woven bag 1. The two retaining edges 14 are respectively against the two sides of the bag mouth of the woven bag 100.

[0026] At this time, the two moving struts 2 are respectively arranged on the outer sides of the corresponding inner struts 1, and the two moving struts 2 are respectively away from the outer sides of the inner support plates 12 of the corresponding inner struts 1, so that the two moving struts 2 are not in the bag opening of the woven bag 100, and then the two first moving strut cylinders 61 start to work, the first moving strut cylinders 61 are arranged back to back and located on the inner sides of the moving struts 2, and the telescopic ends of the two first moving strut cylinders 61 are retracted, so that the folding plates 21 of the two moving struts 2 move toward each other, and the folding plates 21 move toward the inner support plates 12 (the folding plates 21 move toward During the movement approaching the inner support plate 12, the front end of the folding plate 21 can pass through the folding groove 16), so that the two sides of the bag opening of the woven bag 100 are close to the inner support plate 12, and then the protruding end of the third movable strut cylinder 63 extends, so that the folding plate 21 moves forward (the folding plate 21 enters the U-shaped groove 15), so that the bag opening of the woven bag that is pressed inward is folded inward again, and the two first movable strut cylinders 61 then control the folding plates 21 to move away from each other, so that the bag opening of the woven bag that is folded inward is tightened and the bag opening is flush, completing the folding position of the woven bag, as shown in the figure.

[0027] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A woven bag folding device, characterized in that: The invention comprises two inner support rods (1) arranged opposite to each other, the two inner support rods (1) can extend into the opening of the woven bag, and stretch and align the opening of the woven bag to both sides, the inner support rod driving mechanism is connected to the inner support rod (1), and the inner support rod driving mechanism is arranged on the frame (3), two movable support rods (2) arranged opposite to each other, the two movable support rods (2) are arranged on the outer sides of the two inner support rods (1), respectively, the two movable support rods (2) can fold the outer sides of the stretched and aligned opening of the woven bag inwardly, and then stretch the opening of the woven bag to both sides, so that the opening of the woven bag is folded inwardly to form an inner folding edge (101) in a circle, and the movable support rod driving mechanism is connected to the movable support rod (2), and the movable support rod driving mechanism is arranged on the fixed plate (4); The opposite sides of the two inner support rods (1) are the inner sides of the inner support rods (1). The inner support rod (1) is an L-shaped plate structure. The L-shaped plate structure comprises a connecting plate (11) in the vertical direction and an inner support plate (12) in the horizontal direction. The rear end of the inner support plate (12) in the horizontal direction and the bottom of the connecting plate (11) in the vertical direction are perpendicular to each other and are an integral structure. The front end of the inner support plate (12) in the horizontal direction is folded outward to form a folded edge (13). The folded edge (13) is further folded backward to form a retaining edge (14). A U-shaped groove (15) is formed between the retaining edge (14) and the inner support plate (12). A folding groove (16) is provided on the retaining edge (14). The folding groove (16) and the U-shaped groove (15) are connected. The width direction of the folding groove (16) and the width direction of the U-shaped groove (15) are perpendicular to each other. The connecting plate (11) in the vertical direction is connected to the inner support rod driving mechanism. The groove depth of the folding groove (16) is consistent with the length of the retaining edge (14); The inner support rod driving mechanism comprises two first connecting plate cylinders (51) and two second connecting plate cylinders (52), the telescopic ends of the two first connecting plate cylinders (51) are correspondingly mounted on the side surfaces of the two vertical connecting plates (11), the two first connecting plate cylinders (51) can drive the two inner support rods (1) to move toward or away from each other, the telescopic ends of the two second connecting plate cylinders (52) are correspondingly connected to the cylinder bodies of the two first connecting plate cylinders (51), the cylinder bodies of the second connecting plate cylinders (52) are fixedly mounted on the frame (3), and the second connecting plate cylinders (52) can correspondingly drive the first connecting plate cylinders (51) to move forward and backward; The two movable struts (2) are respectively arranged on the outer sides of the corresponding inner struts (1), and the movable struts (2) include a folding plate (21) and a folding connecting plate (22). The folding plate (21) is a horizontal straight plate structure. The folding plate (21) and the inner strut plate (12) are parallel. The front end of the folding plate (21) can move horizontally and can pass through the folding groove (16) during the horizontal movement. The rear end of the folding plate (21) is fixedly connected to the upper end of the folding connecting plate (22), and the lower end of the folding connecting plate (22) is connected to the movable strut driving mechanism.

2. The folding device for woven bags according to claim 1, characterized in that: The movable strut driving mechanism comprises two first movable strut cylinders (61), two second movable strut cylinders (62) and two third movable strut cylinders (63), the telescopic ends of the two first movable strut cylinders (61) are respectively connected to the corresponding folding connection plates (22), the two first movable strut cylinders (61) are installed opposite to each other, the telescopic ends of the two second movable strut cylinders (62) are respectively fixedly connected to the cylinder bodies of the two first movable strut cylinders (61), the telescopic ends of the two third movable strut cylinders (63) are respectively fixedly connected to the cylinder bodies of the two second movable strut cylinders (62), and the two third movable strut cylinders (63) are respectively fixedly installed on the fixed plate (4) through cylinder supports (64).

3. The folding device for woven bags according to claim 1, characterized in that: The woven bag folding device also includes a fixed plate moving mechanism, which includes a slide rail (71) fixed on a belt, a slider (72) slidably mounted on the slide rail (71), the fixed plate (4) is fixedly mounted on the slider (72), and the belt is sleeved on the driving gear and the driven gear.

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