CN206885477U - A kind of Openmouthed bag automatic bag opener - Google Patents

Abstract

The utility model relates to an automatic bag opening device for an open bag, which is matched and installed on an automatic bag loading machine, and includes a bag feeding and bag opening mechanism. The bag feeding mechanism includes a slide frame, a guide shaft and a bag feed cylinder, and the slide block is nested on the guide shaft on the upper layer of the fixed frame. The top end of the piston rod of the bag delivery cylinder is connected with the horizontal 匚-shaped carriage on the slide block to push the carriage to move left and right. The top end of the piston rod of the bag-opening cylinder fixed on both sides of the slide frame is connected to the bag-opening frame, and the clip and the suction cup are fixed thereon. The claw opening and closing cylinder fixed on both sides of the feed port is connected with the pneumatic gripper to control the opening and closing of the claw clamp at the lower end. After starting, the bag-opening cylinder pushes the clip to clamp the open-mouth bag, and sends the open-mouth bag clamped by the slide frame and the clip to the bottom of the material opening. The claw opening and closing cylinder makes the claw clip of the pneumatic claw clamp the open bag. The bag opening rack is retracted, the clips release the open bag, the suction cup sucks the bag wall and pulls the bag opening, and the open bag is clamped by the claw clips and hung below the material opening. The utility model automatically completes the opening of the open-mouth bag and improves the efficiency.

Description

An open bag automatic bag opening device

technical field

The utility model relates to the technical field of powder packaging machinery, in particular to an automatic bag opening device for an open bag.

Background technique

Open bag is a prefabricated open bag: its bottom is square, so that the overall effect of the open bag after filling is neat and easy to stack, comparable to square bottom valve bags. The opening is flat and can be sealed with an ordinary packaging bag sewing machine. Because the open bag is a packaging bag that takes into account both traditional packaging methods and advanced packaging methods, it is widely used.

There are a variety of powder packaging machines that can realize automatic filling, metering, sealing and other processes. However, when using open bags for powder packaging, because the prefabricated open bags are stacked into a flat state, the bags need to be opened manually, and the The mouth of the bag is covered with the material inlet. Not only is the labor intensity high and the efficiency is low, but also the powder packaging site is full of dust and the environment is harsh.

At present, with the development of the national production economy, there is an increasing demand for ultra-fine mine powders, such as ultra-fine talc powder, mica powder, quartz powder, etc., which are widely used in electronics, chemicals, ceramics, cosmetics, coatings and papermaking And other fields, the market demand is very large, and the production of mine powder is facing a trend of rapid development. The current situation of powder packaging is also in urgent need of improvement.

As we all know, ultra-fine mine powder is more harmful to the human body. Although a vacuum cleaner is installed at the filling device and the operator is equipped with a dust mask, it is still difficult to avoid environmental pollution, especially the health hazard to the operator.

In order to effectively improve the production environment of mine powder production enterprises, reduce the labor intensity and labor cost of powder packaging, improve the efficiency of powder packaging, and meet the new requirements of enterprises to improve automation and production efficiency, the open bag automation of powder packaging It is imperative to replace manual bagging with bagging.

Utility model content

The purpose of this utility model is to design an automatic bag opening device for an open bag, which includes an automatic bag feeding mechanism, an automatic bag opening mechanism, a material mouth, and a bag opening clamping mechanism, which can automatically complete the bag opening action of a flat open bag . This device replaces manual bagging and bagging, and significantly improves the efficiency of powder packaging.

An open bag automatic bag opening device designed by the utility model is installed in an automatic bag loading machine, and the automatic bag loading machine includes a frame, a bag feeding mechanism, a material port connected with a feeding pipe, a weighing mechanism and a transmission mechanism , each component is installed on the rack. The intake valves, exhaust valves and feed pumps of the cylinders that drive each mechanism are connected with the control center and opened or closed by the control center.

The open bag automatic bag opening device comprises a bag feeding mechanism and a bag opening mechanism.

The bag feeding mechanism includes a carriage, a guide shaft and a bag feeding cylinder, and two guide shafts that are horizontal and parallel to each other are fixed on the upper layer of the frame. The carriage is a horizontally placed U-shaped frame. The two sides of the U-shape are parallel to the guide shaft. The sliders are fixed on both sides of the U-shape. The sliders on both sides are respectively nested in the two guide shafts. The cylinder body of the bag delivery cylinder Fixed at one end of the frame, the piston rod of the bag delivery cylinder is parallel to the guide shaft, and its top is connected with the carriage. When the bag delivery cylinder moves, the piston rod pulls or pushes the carriage to move left and right on the guide shaft.

A bag-opening mechanism is also designed, including a bag-opening cylinder, a bag-opening frame, clips and suction cups; a bag-opening cylinder block is fixed on both sides of the carriage, and the piston rod of the bag-opening cylinder is perpendicular to the guide shaft and extends toward the The longitudinal centerline of the slide frame is U-shaped, the top of the piston rod is connected to the bag opening frame, and the clips and suction cups are fixed on the bag frame. Suction cups, the disk surfaces of the plurality of suction cups on each side and the inner surface of the clip are in the same vertical plane parallel to the center line of the carriage.

A claw opening and closing cylinder is respectively fixed on the outer walls on the left and right sides of the material mouth, and the upper ends of a pair of pneumatic grippers are hinged on the outer walls on the left and right sides of the material mouth. The two opposite claw clips at the lower end of the claw are separated from each other; the height of the claw clips is higher than that of the clip pieces of the bag opening mechanism.

The upper edge of the jaw clamp of the pneumatic gripper is equal to or lower than the upper edge of the open-mouth bag, and the height difference between the upper edge of the jaw clamp and the upper edge of the open-mouth bag is less than 5cm.

The bag feeding cylinders are two identical cylinders on the same level, and the distance between them is greater than the maximum distance between the clips on both sides of the bag opening mechanism.

The clips and suction cups of the bag-opening frame are 10-30 cm lower than the upper edge of the flattened open-mouth bag in the vertical state.

The length of the clip is greater than the width of the open-mouth bag folded flat.

The suction cup is installed in the middle of the bag opening frame, and the suction cup is symmetrically installed on the left and right of the center line of the bag opening frame, and the distance between the suction cups from the leftmost end to the rightmost end is 1/3 to 1 /2. The suction cups are arranged in a row above the clips.

The clips and suction cups on the bag opening racks on both sides are symmetrical with respect to the longitudinal central bisector of the U-shaped carriage.

When an automatic bag opening device for open bags of the utility model is used, the sliding frame is at the starting end of the guide shaft in the initial state, and the piston rods of the bag opening cylinders on both sides stretch out after starting, and the clips on the bag opening frames on both sides The upper end pocket of the open-mouth bag between them is held, and the surface of the suction cup on both sides is attached to the open-mouth bag at the same time. The bag feeding cylinder acts, and the sliding frame is pulled to slide along the guide shaft, and the open bag held by the sliding frame and the clip is sent to the bottom of the material opening.

When the open bag clamped by the slide frame moves to the bottom of the material mouth with the clips, the claw opening and closing cylinder moves, and the claw clips of the pneumatic claws are brought together to clamp the two ends of the open bag mouth. After that, the piston rod of the bag opening cylinder is retracted, the bag opening frame is retracted, and the clip on it releases the open bag. Open the mouth, disconnect the negative pressure tube, and the bag delivery cylinder will move to send the carriage back to the starting end of the guide shaft. The open bag is clamped by the claw clip of the pneumatic gripper and hung under the material opening.

Compared with the prior art, the utility model has the advantages of an open bag automatic bag opening device: 1. It can automatically take the bag and send the open bag to the bottom of the material opening, and automatically complete the opening of the flat open bag, The manual operation is saved and the efficiency is improved; 2. The structure is simple and the cost is low.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the embodiment of the open bag automatic bag opening device and its powder packaging open bag automatic bagging machine;

Fig. 2 is a structural schematic diagram of the bag feeding mechanism and the bag opening mechanism in Fig. 1;

Fig. 3 is a top view schematic diagram of the bag feeding mechanism and the bag opening mechanism in Fig. 1;

Fig. 4 is a schematic diagram of the structure of the opening and the bag opening mechanism when the slide frame of the open bag automatic bag opening device embodiment reaches the bottom of the opening with the open bag clamped by the clip;

Fig. 5 is a structural schematic diagram of the material opening and the bag opening mechanism after the pneumatic gripper clamps the upper edge of the open bag and the suction cup pulls the opening of the bag open in the embodiment of the automatic bag opening device of the open bag;

0 open bag; 1 frame; 2 bag feeding mechanism, 21 guide shaft, 22 bag feeding cylinder, 23 carriage, 24 slider; 3 bag opening mechanism, 31 suction cup, 32 bag opening frame, 33 clip, 34 bag opening Cylinder; 4 weighing mechanism; 5 feeding port, 51 claw opening and closing cylinder, 52 pneumatic gripper, 53 claw clip; 6 transmission mechanism.

detailed description

The automatic bag opening device embodiment of the open bag is installed on the automatic bagging machine, as shown in Figure 1, the automatic bagging machine includes a frame 1, a bag feeding mechanism 2, a feed port 5 connected with a feeding pipe, a weighing The weight mechanism 4 and the transmission mechanism 6 are installed on the frame 1; the intake valves, exhaust valves and feed pumps of the cylinders driving each mechanism are connected with the control center, and are opened or closed by the control center.

The embodiment of the open bag automatic bag opening device includes a bag feeding mechanism 2 and a bag opening mechanism 3 .

As shown in Figures 2 and 3, the bag feeding mechanism 2 of this example includes a carriage 23, a guide shaft 21 and a bag feeding cylinder 22, and two guide shafts 21 that are horizontal and parallel to each other are fixed on the upper layer of the frame 1; the carriage 23 is horizontal The placed U-shaped frame, the two sides of the U-shaped are parallel to the guide shaft 21, the two sides of the U-shaped are fixed sliders 24, and the sliders 24 on both sides are respectively nested in the two guide shafts 21, and the cylinder of the bag delivery cylinder 22 The body is fixed on one end of the frame 1, the piston rod of the bag delivery cylinder 22 is parallel to the guide shaft 21, and its top is connected with the carriage 23. When the bag delivery cylinder 22 moves, its piston rod pulls or pushes the carriage 23 on the guide shaft 21. Move left and right. In this example, the bag delivery cylinders 22 are two identical cylinders on the same horizontal plane, and the distance between the two is greater than the maximum distance between the clips 33 on both sides of the bag opening mechanism 3 .

This example bag-opening mechanism 3 comprises a bag-opening cylinder 34, a bag-opening frame 32, clips 33 and a suction cup 31; a bag-opening cylinder 34 cylinder blocks are respectively fixed on both sides of the carriage 23, and the piston rod of the bag-opening cylinder 34 Perpendicular to the guide shaft 21, stretching to the longitudinal centerline of the carriage carriage 23, the top of the piston rod is connected to the bag opening frame 32, and the clip 33 and the suction cup 31 are fixed on the bag opening frame 32, and the clip 33 is a straight sheet. The bag opening rack 32 on each side has at least two suction cups 31 connected with the negative pressure pipe, and the disk surfaces of a plurality of suction cups 31 on each side are in the same vertical plane parallel to the centerline of the slide frame 23 with the inner surface of the clip 33; The initial state slide frame 23 is at the starting end of guide shaft 21, and the piston rod of the bag opening cylinder 34 on both sides stretches out, and the clips 33 on both sides clamp the upper end pocket of the open bag O between them, and both sides simultaneously The surface of the suction cup 31 of the suction cup is attached to the wall of the open bag O bag; the bag delivery cylinder 34 acts to pull the carriage 23 to slide along the guide shaft 21, and the open bag O held by the carriage 23 and the clip 33 is sent to the material port 5 below.

This example open bag rack 32 and clip 33 on it and sucker 31 are lower than vertical state and folded into flat open-mouth bag 0 upper edge 15cm. The length of the clip 33 of this example is greater than the width of the open-mouth bag 0 folded flat.

The suction cups 31 of this example are installed in the middle part of the bag opening frame 32, arranged in a row and positioned above the clips 33. Fold to 1/3 the width of a flat open-mouth bag 0.

The clips 33 and the suction cups 31 on the bag opening racks 32 on both sides of this example are symmetrical with respect to the longitudinal center bisector of the sliding frame 23 .

As shown in Figures 4 and 5, a claw opening and closing cylinder 51 is respectively fixed on the outer walls on the left and right sides of the material opening 5, and the upper ends of a pair of pneumatic hand jaws 52 are hinged on the outer walls on the left and right sides of the material opening 5, and the pneumatic The gripper 52 is initially in an open state, and the two relative grippers 53 at the lower end of the pneumatic gripper 52 are separated from each other;

The upper edge of the clamp 53 of the pneumatic gripper 52 of this example is flat with the upper edge of the open-mouth bag 0, or lower than the upper edge of the open-mouth bag 0.

The height difference between the upper edge of the clamp 53 of the pneumatic gripper 52 and the upper edge of the open bag 0 is less than 5cm.

When this open bag automatic bag opening device is in use, the initial state slide frame 23 is at the starting end of the guide shaft 21. After starting, the piston rods of the bag opening cylinders 34 on both sides stretch out, and the clips 33 on the bag opening racks 32 on both sides are clamped. Hold the upper pocket of the open-mouth bag 0 between them, and at the same time, the surface of the suction cup 31 on both sides fits with the open-mouth bag 0; the bag delivery cylinder 22 moves, pulls the carriage 23 to slide along the guide shaft 21, and the carriage 21 and clip The open bag O held by 33 is sent to the bottom of the material opening 5; at this time, the claw opening and closing cylinder 51 moves, and the claw clips 53 of the pneumatic hand claws 52 are brought together to clamp the two ends of the open bag O pocket; The piston rod of the bag cylinder 34 is retracted, the bag opening frame 32 is retracted, the clip on it releases the open bag, and the suction cup 31 sucks the open bag 0 bag wall under the action of negative pressure, and pulls the bag wall it absorbs to move outward. , pull open the bag mouth, disconnect the negative pressure tube, the bag feeding cylinder 22 moves, and the carriage 23 is sent back to the starting end of the guide shaft 21; 5 below.

The above-mentioned embodiments are only specific examples for further specifying the purpose, technical solutions and beneficial effects of the utility model, and the utility model is not limited thereto. All modifications, equivalent replacements, improvements, etc. made within the disclosed scope of the present utility model are included in the protection scope of the present utility model.

Claims (10)

1. a kind of Openmouthed bag automatic bag opener, cooperation is installed on automatic bag feeding machine, the automatic bag feeding machine include frame (1), Material mouth (5), Weighing mechanism (4) and transport mechanism (6), each part for send bag mechanism (2), being connected with feed pipe are installed on frame (1)；Drive the intake valve, air bleeding valve and feed pump of the cylinder of each mechanism to be connected with control centre, opened by control centre's control Open or close；It is characterized in that：

This Openmouthed bag automatic bag opener includes sending bag mechanism (2) and bag openning body (3)；

Described to send bag mechanism (2) to include balladeur train (23), the axis of guide (21) and send a bag cylinder (22), frame (1) upper strata is fixed horizontal , 2 to be parallel to each other piece axis of guide (21)；Balladeur train (23) is horizontal positioned Contraband shape frame, the both sides of Contraband shape and the axis of guide (21) Parallel, each fixed sliding block (24) in both sides of Contraband shape, the sliding block (24) of both sides is nested in 2 axis of guides (21), send a bag cylinder respectively (22) cylinder body is fixed on frame (1) one end, send the piston rod of a bag cylinder (22) parallel with the axis of guide (21), its top and balladeur train (23) connect, when sending a bag cylinder (22) action, its piston rod pulls or promoted balladeur train (23) left and right shifting on the axis of guide (21) It is dynamic；

Bag openning body is also devised with, including opens a bag cylinder (34), drive a bag frame (32), intermediate plate (33) and sucker (31)；Balladeur train (23) The both sides of Contraband shape are each to be fixed one and opens a bag cylinder (34) cylinder body, and the piston rod for opening a bag cylinder (34) is vertical with the axis of guide (21), stretches To the longitudinal centre line of balladeur train balladeur train (23) Contraband shape, a bag frame (32) is opened in the connection of piston rod top；Drive tingle on a bag frame (32) (33) and sucker (31), intermediate plate (33) are flat sheet, and a bag frame (32) at least two suckers being connected with negative tube are driven per side (31), the card of multiple suckers (31) per side is in the same lead parallel to balladeur train (23) center line with intermediate plate (33) medial surface Vertical plane；Initial state balladeur train (23) is in the initiating terminal of the axis of guide (21), and the piston rod for opening a bag cylinder (34) of both sides stretches out, Both sides intermediate plate (33) clamping be in they between Openmouthed bag (0) upper end sack, while sucker (31) card of both sides with Openmouthed bag (0) bag wall is bonded；Send a bag cylinder (34) to act, pull balladeur train (23) to be slided along the axis of guide (21), balladeur train (23) and folder The Openmouthed bag (0) of piece (33) clamping is sent to below the material mouth (5).

2. Openmouthed bag automatic bag opener according to claim 1, it is characterised in that：

Material mouth (5) the arranged on left and right sides outer wall is each to fix a paw folding cylinder (51), the upper end of a pair of Pneumatic paws (52) The material mouth (5) arranged on left and right sides outer wall is articulated with, Pneumatic paw (52) is initially open configuration, Pneumatic paw (52) lower end Two relative claw clips (53) are separated from each other；The height of claw clip (53) is higher than the height of intermediate plate (33).

3. Openmouthed bag automatic bag opener according to claim 2, it is characterised in that：

In claw clip (53) jaws of the Pneumatic paw (52) along with Openmouthed bag (0) along equal, or less than on Openmouthed bag (0) Edge.

4. Openmouthed bag automatic bag opener according to claim 3, it is characterised in that：

It is less than 5cm along the difference in height with edge on Openmouthed bag (0) in claw clip (53) jaws of the Pneumatic paw (52).

5. Openmouthed bag automatic bag opener according to claim 1, it is characterised in that：

Described to send a bag cylinder (22) be 2 identical cylinders, and in same level, and the spacing of the two is more than bag openning body (3) the maximum spacing of both sides intermediate plate (33).

6. Openmouthed bag automatic bag opener according to claim 1, it is characterised in that：

The laminated of a bag frame (32) and intermediate plate (33) thereon and sucker (31) less than vertical state of opening is into flat opening Along 10~30cm on bag (0).

7. Openmouthed bag automatic bag opener according to claim 1, it is characterised in that：

The length of the intermediate plate (33) is more than laminated into the width of flat Openmouthed bag (0).

8. Openmouthed bag automatic bag opener according to claim 1, it is characterised in that：

The sucker (31) is installed on out in the middle part of a bag frame (32), and it is left and right that sucker (31) is symmetrically arranged on out a bag frame (32) center line, High order end to the distance between the sucker (31) of low order end is laminated into the 1/3 to 1/2 of the width of flat Openmouthed bag (0).

9. Openmouthed bag automatic bag opener according to claim 8, it is characterised in that：

The sucker (31) is in line above intermediate plate (33).

10. Openmouthed bag automatic bag opener according to claim 8, it is characterised in that：

Intermediate plate (33) on a bag frame (32) is opened in the both sides and sucker (31) is divided equally relative to the longitudinal center of balladeur train (23) Contraband shape Face is symmetrical.