Automatic tying device for ton bags

Abstract

The utility model discloses an automatic tying device for ton bags, which comprises a bag extruding module, and the bag extruding module comprises a transverse bag extruding module and a longitudinal bag extruding module which are oppositely arranged; the transverse bag extruding module comprises two transverse pushing supports, a first transverse pushing rod is arranged between the two transverse pushing supports, and first transverse pushing air cylinders are installed on the back sides of the two transverse pushing supports correspondingly. The longitudinal bag extruding module comprises a second mounting plate, second synchronous wheels are rotationally mounted at the two ends of the front side of the second mounting plate correspondingly, a synchronous belt is wound between the two second synchronous wheels, a second transverse push rod is further fixed to the front side of the second mounting plate, and two sliding seats are slidably mounted on the second transverse push rod; wherein one sliding seat is fixedly connected with the upper side of the synchronous belt, the other sliding seat is fixedly connected with the lower side of the synchronous belt, and V-shaped forks are fixed to the opposite sides of the two sliding seats respectively. According to the ton bag closing device, ton bag closing can be more reliable, a bag opening can be tightened more compactly, and a tying machine can conduct tying conveniently.

Description

Technical Field

[0001] The utility model relates to an automatic tying device for ton bags, belonging to the technical field of automatic tying of ton bags. Background Art

[0002] Ton bags are usually used for powder filling. In the field of modern logistics and warehousing, powder filling is usually carried out through automated packaging lines. After filling, the bags are tied. There are multiple ways to tie the bag mouths, including suturing and tying. The tying method is more suitable for reuse of ton bags, that is, after one packaging use, it can be tied and sealed again. Generally, the tying operation is done manually, which has low work efficiency and high labor intensity. In addition, the powder particles are easily dispersed into the air, which is harmful to workers.

[0003] A Chinese invention patent with publication number CN117963261A discloses a ton bag closing machine, including a bag opening tightening device, including two swing frames 21, a closing push plate 23 protruding inward from the swing frame 21, and the closing push plate 23 is perpendicular to the limit plate, and the movement directions of the closing push plates 23 are opposite. When the bag is tied, the swing frame 21 of the bag opening tightening device embraces the bag opening of the ton bag under the drive of the swing drive 22, and then the two closing push plates 23 are driven by the push plate drive 24 to approach each other to embrace the flat bag opening together.

[0004] In the above process of tightening the bag mouth, the opening and closing method of the two swing frames at a certain angle determines that the closing push plate is a flat plate. This flat plate closing structure can easily cause the bag to slip out of the closing push plate, resulting in closing failure and thus inability to tie the bag. Taking a step back, even if the bag does not slip out of the closing push plate, since the two swing frames are very close to the ground and the ton bag has a certain thickness, the two closing push plates cannot be very close to each other, so that the bag mouth is squeezed into a long strip, which is not convenient for the tying machine to tie the bag.

[0005] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] The utility model aims at the deficiencies in the background technology and provides an automatic closing device for ton bags, which can make the closing of the ton bags more reliable and make the bag openings more compact, so as to facilitate the closing of the bags by a closing machine.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] An automatic bag-tying device for ton bags, comprising a bag squeezing module and a bag-tying machine, wherein the bag squeezing module comprises a transverse bag squeezing module and a longitudinal bag squeezing module which are arranged opposite to each other;

[0009] The transverse bag squeezing module comprises two transverse push brackets, a first transverse push rod is arranged between the two transverse push brackets, and first transverse cylinders are respectively installed on the back sides of the two transverse push brackets;

[0010] The longitudinal bag squeezing module includes a second mounting plate, and second synchronous wheels are rotatably mounted at both ends of the front side of the second mounting plate, a synchronous belt is wound between the two second synchronous wheels, and a second transverse push rod is also fixed to the front side of the second mounting plate, and two sliding seats are slidably mounted on the second transverse push rod, one of the sliding seats is fixedly connected to the upper side of the synchronous belt, and the other sliding seat is fixedly connected to the lower side of the synchronous belt, and V-shaped forks are fixed on the opposite sides of the two sliding seats.

[0011] Furthermore, the V-shaped fork is a V-shape formed by connecting two fork plates at a certain angle, and the V-shaped fork on one sliding seat is inconsistent in height with the V-shaped fork on the other sliding seat in the vertical direction.

[0012] Furthermore, it also includes a bag receiving module, which includes a first mounting plate, first synchronous wheels are rotatably mounted on both ends of the first mounting plate, a synchronous belt is wound between the two first synchronous wheels, a first mounting frame is fixed on the synchronous belt, a slide cylinder is mounted on the first mounting frame, a clamping arm is fixed to the sliding end of the slide cylinder, and a clamping arm is also mounted on the first mounting frame.

[0013] Furthermore, it also includes an auxiliary bag clamping module, which includes a vertically arranged double guide rod cylinder, a U-shaped frame is installed on the sliding end of the double guide rod cylinder, a clamping cylinder is installed on both sides of the U-shaped frame, and a clamping piece is installed on the two clamping jaws of each clamping cylinder.

[0014] Furthermore, a sliding mounting frame includes a base frame and a sliding frame arranged to slide relative to the base frame.

[0015] Furthermore, the sliding frame is slidably installed on the base frame through a slide rail, a lead screw is vertically rotatably installed on the base frame, a nut matching the lead screw thread is provided on the sliding frame, the lead screw is driven by a servo motor, and the rotation of the lead screw drives the sliding frame to move up and down.

[0016] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0017] The first transverse push rod and the second transverse push rod are close to each other to clamp the bag opening laterally, and the V-shaped forks on both sides are close to each other. Since the V-shaped fork is a V-shape formed by two fork plates connected at a certain angle, the bag opening can be squeezed into a columnar shape, and there will be no problem of the bag opening falling out. In addition, the first transverse push rod and the second transverse push rod do not need to fit tightly to make the bag opening in a straight line, and a certain gap can be allowed, as long as the bag opening is not loose. Since the V-shaped forks on both sides are inconsistent in height in the vertical direction, the two V-shaped forks can be staggered and gathered to gather the bag opening into a columnar shape, which is convenient for tying the bag later.

[0018] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a side view of the utility model;

[0021] Figure 3 It is a three-dimensional diagram of the middle bag module of the utility model;

[0022] Figure 4 This is a top view of the bag squeezing module in the utility model;

[0023] Figure 5 It is a three-dimensional diagram of one angle of the longitudinal bag squeezing module in the utility model;

[0024] Figure 6 It is a three-dimensional diagram of the longitudinal bag squeezing module of the utility model from another angle;

[0025] Figure 7 It is a three-dimensional diagram of the transverse bag squeezing module in the utility model;

[0026] Figure 8 It is a stereoscopic diagram of the auxiliary bag clamping module in the utility model.

[0027] In the figure,

[0028] 1-sliding mounting frame, 101-base frame, 102-sliding frame, 103-servo motor, 104-screw, 105-slide rail, 2-bag squeezing module, 3-lateral bag squeezing module, 301-first lateral push rod, 302-first lateral cylinder, 303-lateral push bracket, 4-longitudinal bag squeezing module, 401-second lateral push rod, 402-second mounting plate, 403-second synchronous wheel, 404-sliding seat, 405-V-shaped fork, 406-second lateral cylinder, 5-bag receiving module, 501-first mounting plate, 502-first synchronous wheel, 503-first mounting frame, 504-sliding table cylinder, 505-clamping arm, 6-auxiliary bag clamping module, 601-double guide rod cylinder, 602-U-shaped frame, 603-clamping claw cylinder, 604-clamping piece, 7-sealing machine. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0030] like Figure 1-2 As shown, the utility model provides an automatic tying device for ton bags, comprising a bag receiving module 5, an auxiliary bag clamping module 6, a bag squeezing module 2 and a tying machine 7. The bag receiving module 5 pre-clamps the bag mouth and transports it to the bag squeezing module 2, the auxiliary bag clamping module 6 performs auxiliary clamping on the bag mouth to prevent the bag mouth from loosening, and then the bag squeezing module 2 squeezes the bag mouth and completes the tying through the tying machine 7.

[0031] like Figure 3 The bag receiving module 5 includes a first mounting plate 501, and first synchronous wheels 502 are rotatably mounted at both ends of the first mounting plate 501. A synchronous belt is wound between the two first synchronous wheels 502, and a first mounting frame 503 is fixed on the synchronous belt. A slide cylinder 504 is mounted on the first mounting frame 503. A clamping arm 505 is fixed to the sliding end of the slide cylinder 504, and a clamping arm 505 is also mounted on the first mounting frame 503.

[0032] The rear end of the bag receiving module 5 is provided with an auxiliary bag clamping module 6, such as Figure 8 The auxiliary bag clamping module 6 includes a vertically arranged double guide rod cylinder 601, a U-shaped frame 602 is installed at the sliding end of the double guide rod cylinder 601, a clamping cylinder 603 is installed on both sides of the U-shaped frame 602, and a clamping piece 604 is installed on the two clamping claws of each clamping cylinder 603.

[0033] When the bag receiving module 5 moves the ton bag with the bag opening clamped to the bottom of the auxiliary bag clamping module 6, the double guide rod cylinder 601 drives the U-shaped frame 602 to move downward, and the clamping claw cylinder 603 drives the clamping piece 604 to clamp the bag opening of the ton bag. At this time, the clamping arm 505 of the bag receiving module 5 is released and returned to its position, and the auxiliary bag clamping module 6 clamps the bag opening to prevent the bag opening in the spirally tightened state from loosening.

[0034] The lower end of the auxiliary bag clamping module 6 is provided with a bag squeezing module 2, and the bag squeezing module 2 includes a transverse bag squeezing module 3 and a longitudinal bag squeezing module 4 which are arranged opposite to each other. Figure 4-7 The transverse bag squeezing module 3 includes two transverse push brackets 303, a first transverse push rod 301 is provided between the two transverse push brackets 303, and a first transverse cylinder 302 is installed on the back side of the two transverse push brackets 303;

[0035] The longitudinal bag squeezing module 4 comprises a second mounting plate 402, on which second synchronous wheels 403 are rotatably mounted at both ends of the front side of the second mounting plate 402, a synchronous belt is wound between the two second synchronous wheels 403, a second transverse push rod 401 is also fixed on the front side of the second mounting plate 402, two sliding seats 404 are slidably mounted on the second transverse push rod 401, one of the sliding seats 404 is fixedly connected to the upper side of the synchronous belt, and the other sliding seat 404 is fixedly connected to the lower side of the synchronous belt, and V-shaped forks 405 are fixed on the opposite sides of the two sliding seats 404, respectively, and the V-shaped forks 405 are V-shaped formed by connecting two fork plates at a certain angle; the V-shaped forks 405 on one sliding seat 404 and the V-shaped forks 405 on the other sliding seat 404 are not in the same height in the vertical direction. Two second transverse cylinders 406 are installed on the back side of the second mounting plate 402.

[0036] After the auxiliary bag clamping module 6 clamps the bag opening, the first transverse cylinder 302 drives the first transverse push rod 301 to move forward, making it close to the second transverse push rod 401, and the second transverse cylinder 406 also drives the second transverse push rod 401 to approach the first transverse push rod 301, and finally clamps the bag opening horizontally; then, under the drive of the second synchronous wheel 403, the synchronous belt rotates on the two second synchronous wheels 403, and the upper side of the synchronous belt and the lower side of the synchronous belt move in opposite directions, so that the V-shaped forks 405 on both sides are close to each other, and the V-shaped forks 405 on both sides are V-shaped, so there will be no problem of bag coming out; in addition, the first transverse push rod 301 and the second transverse push rod 401 do not need to be closely fitted to make the bag opening in a straight line, and a certain gap can be provided, as long as the bag opening is not loosened, because the V-shaped forks 405 on both sides are inconsistent in height in the vertical direction, the two V-shaped forks 405 can be staggered and folded, and the bag opening is folded into a columnar shape, which is convenient for tying the bag in the later stage.

[0037] The utility model also includes a sliding mounting frame 1, which includes a base frame 101 and a sliding frame 102 slidably arranged relative to the base frame 101, the sliding frame 102 is slidably mounted on the base frame 101 through a slide rail 105, a lead screw 104 is vertically rotatably mounted on the base frame 101, a nut threadedly matched with the lead screw 104 is provided on the sliding frame 102, the lead screw 104 is driven by a servo motor 103, and the rotation of the lead screw 104 drives the sliding frame 102 to move up and down.

[0038] The bag squeezing module 2 , the bag receiving module 5 and the auxiliary bag clamping module 6 are installed on the sliding frame 102 and move up and down together with the sliding frame 102 .

[0039] The specific working principle of the utility model:

[0040] When the utility model is working, the ton bag is conveyed to the bag receiving module 5 under the conveyance of the horizontal conveyor line, and the bag receiving module 5 sends the ton bag with the pre-clamped bag mouth to the bag squeezing module 2. After the auxiliary bag clamping module 6 clamps the bag mouth, the first transverse push rod 301 and the second transverse push rod 401 approach each other to clamp the bag mouth laterally, and the V-shaped forks 405 on both sides are close to each other. Since the V-shaped fork 405 is a V-shape formed by two fork plates connected at a certain angle, the bag mouth can be squeezed into a columnar shape, and there will be no problem of the bag mouth falling out; in addition, the first transverse push rod 301 and the second transverse push rod 401 do not need to be tightly fitted to make the bag mouth in a straight line shape, and a certain gap can be provided, as long as the bag mouth is not loosened. Since the V-shaped forks 405 on both sides are inconsistent in height in the vertical direction, the two V-shaped forks 405 can be staggered and gathered to gather the bag mouth into a columnar shape, which is convenient for tying the mouth in the later stage.

[0041] The sliding frame 102 can drive the bag squeezing module 2, the bag receiving module 5 and the auxiliary bag clamping module 6 to move up and down, so that each module can adapt to the bag opening position to operate.

[0042] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. An automatic closing device for ton bags, characterized by: It comprises a bag squeezing module (2) and a tying machine (7), wherein the bag squeezing module (2) comprises a transverse bag squeezing module (3) and a longitudinal bag squeezing module (4) which are arranged opposite to each other; The transverse bag squeezing module (3) comprises two transverse push brackets (303), a first transverse push rod (301) is arranged between the two transverse push brackets (303), and first transverse cylinders (302) are respectively installed on the back sides of the two transverse push brackets (303); The longitudinal bag squeezing module (4) comprises a second mounting plate (402), and second synchronous wheels (403) are rotatably mounted at both ends of the front side of the second mounting plate (402), and a synchronous belt is wound between the two second synchronous wheels (403). A second transverse push rod (401) is also fixed to the front side of the second mounting plate (402), and two sliding seats (404) are slidably mounted on the second transverse push rod (401), one of the sliding seats (404) is fixedly connected to the upper side of the synchronous belt, and the other sliding seat (404) is fixedly connected to the lower side of the synchronous belt, and V-shaped forks (405) are fixed to the opposite sides of the two sliding seats (404).

2. The automatic closing device for ton bags according to claim 1, characterized in that: The V-shaped fork (405) is a V-shape formed by connecting two fork plates at a certain angle, and the V-shaped fork (405) on one sliding seat (404) is not in the same height as the V-shaped fork (405) on the other sliding seat (404) in the vertical direction.

3. The automatic closing device for ton bags according to claim 1, characterized in that: The invention also comprises a bag receiving module (5), wherein the bag receiving module (5) comprises a first mounting plate (501), first synchronous wheels (502) are rotatably mounted at both ends of the first mounting plate (501), a synchronous belt is wound between the two first synchronous wheels (502), a first mounting frame (503) is fixed on the synchronous belt, a slide cylinder (504) is mounted on the first mounting frame (503), a clamping arm (505) is fixed on the sliding end of the slide cylinder (504), and a clamping arm (505) is also mounted on the first mounting frame (503).

4. The automatic closing device for ton bags according to claim 1, characterized in that: The invention also comprises an auxiliary bag clamping module (6), wherein the auxiliary bag clamping module (6) comprises a vertically arranged double guide rod cylinder (601), a U-shaped frame (602) is installed at the sliding end of the double guide rod cylinder (601), a clamping claw cylinder (603) is installed on each side of the U-shaped frame (602), and a clamping piece (604) is installed on each of the two clamping claws of each clamping claw cylinder (603).

5. The automatic closing device for ton bags according to claim 1, characterized in that: A sliding mounting frame (1), comprising a base frame (101) and a sliding frame (102) arranged to slide relative to the base frame (101).

6. The automatic closing device for ton bags according to claim 5, characterized in that: The sliding frame (102) is slidably mounted on the base frame (101) via a slide rail (105); a lead screw (104) is vertically rotatably mounted on the base frame (101); a nut threadedly matched with the lead screw (104) is provided on the sliding frame (102); the lead screw (104) is driven by a servo motor (103); the rotation of the lead screw (104) drives the sliding frame (102) to move up and down.

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