Bag clamping device of rotating disc bag feeding type packaging machine

Abstract

The utility model belongs to the technical field of packaging equipment, and particularly relates to a bag clamping device of a turntable bag feeding type packaging machine, which comprises a turntable mechanism, clamping and grabbing mechanisms circumferentially distributed on the edge of the outer side of the turntable mechanism, and a driving mechanism for driving the turntable mechanism to rotate, an opening assembly used for relieving clamping force of the clamping and grabbing mechanisms is arranged at the position, corresponding to a bag feeding station and a bag discharging station of the packaging machine, of the top end of the rotary disc mechanism and comprises an opening plate, an opening air cylinder and an opening controller, the opening plate is of an L-shaped structure, and one end of the opening plate extends out of the rotary disc mechanism and is located between the clamping and grabbing mechanisms. The other end of the opening plate is connected with an opening air cylinder, and the opening air cylinder is connected with an opening controller in a matched mode so that the opening air cylinder can drive the opening plate to open and bag the clamping and grabbing mechanism under the control of the opening controller. Automatic adjustment of the clamping and grabbing mechanism can be achieved, the clamping and grabbing mechanism has a proper opening degree so as to quickly adapt to clamping and conveying of packaging bags of different sizes, the structure is simple, and the application range is flexible.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of packing equipment, and particularly relates to a bag clamping device of rotary table bag feeding type packing machine. BACKGROUND

[0002] The bag feeding type packing machine is widely used in the market for the packaging of particles, liquids and the like. The working process of the bag feeding type packing machine is that first, an empty packaging bag is clamped by a machine clamp on a rotary table of the packing machine and then is conveyed along with the rotation of the rotary table. During the rotation of the rotary table, the packaging bag completes different work such as opening of a bag opening, feeding and heat sealing of the bag opening at different work stations. Since the bag opening of the packaging bag has different widths, the opening between left and right machine clamp bodies of each group of machine clamps needs to be adjusted every time the bag feeding type packing is performed on different packaging bags.

[0003] At present, the machine clamp of the bag feeding type packing machine is manually adjusted by means of manual adjustment, which is very cumbersome. In addition, the machine clamp generally lacks an opening device at a bag feeding work station and a bag discharging work station. When the machine clamp fails to release the packaging bag, the equipment is easily damaged. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a bag clamping device of rotary table bag feeding type packing machine to solve one or more technical problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A bag clamping device of rotary table bag feeding type packing machine, comprising a rotary table mechanism, a clamping and grabbing mechanism circumferentially distributed on an outer edge of the rotary table mechanism and a driving mechanism for driving the rotary table mechanism to rotate, a support opening assembly for releasing clamping force of the clamping and grabbing mechanism is arranged at a bag feeding work station and a bag discharging work station of the packing machine corresponding to a top end of the rotary table mechanism, the support opening assembly comprises a support opening plate, a support opening cylinder and a support opening controller, the support opening plate has an L-shaped structure, one end of the support opening plate extends out of the rotary table mechanism and is located between the clamping and grabbing mechanisms, the other end of the support opening plate is connected with the support opening cylinder, the support opening cylinder is connected with the support opening controller in a matched mode, so that the support opening cylinder drives the support opening plate to open the clamping and grabbing mechanism under the control of the support opening controller.

[0007] As a further improvement of the above-mentioned technical scheme, the rotary table mechanism comprises a circular work station disc, a fixed disc and a transmission shaft, the fixed disc is arranged on the circular work station disc in a stacked mode, one end of the circular work station disc is connected with the transmission shaft in a transmission mode, the transmission shaft is connected with the driving mechanism in a linkage mode and drives the circular work station disc to rotate.

[0008] As a further improvement of the above technical solution, the clamping and grabbing mechanism comprises left and right symmetrically arranged clamping and grabbing arm assemblies and a cam pushing open assembly for supporting the clamping and grabbing arm assemblies, the clamping and grabbing arm assemblies are in transmission connection with the cam pushing open assembly, the clamping and grabbing arm assembly comprises a clamping and grabbing arm, a connecting rod rocker arm and a bidirectional sliding rail, one end of the clamping and grabbing arm is in sliding connection with the bidirectional sliding rail, the other end is connected with a clamping and grabbing finger, the connecting rod rocker arm is composed of two connecting rods which are hingedly connected with each other, one of the connecting rods is in movable connection with the clamping and grabbing arm through a screw, the other connecting rod is fixedly connected with the clamping and grabbing finger, and the opening and closing of the clamping and grabbing finger is controlled through the connecting rod rocker arm.

[0009] As a further improvement of the above technical solution, the clamping and grabbing arm is further connected with a pushing open roller plate, one end of the pushing open roller plate is rotatably connected with a roller wheel, the roller wheel is in abutting connection with the cam pushing open assembly, and the connecting rod rocker arm is pushed to slide left and right along the bidirectional sliding rail under the action of the cam pushing open assembly.

[0010] As a further improvement of the above technical solution, the cam pushing open assembly comprises a sliding rail seat, a linear sliding rail and a cam plate, one end of the sliding rail seat is fixedly connected to the bottom end of the circular work station disc, the linear sliding rail is axially arranged on the sliding rail seat, the cam plate is in sliding connection with the linear sliding rail, and the cross section of the cam plate is in the shape of an arrow symbol, and the inclined surfaces at both ends of the cam plate are respectively in transmission connection with the roller wheels.

[0011] As a further improvement of the above technical solution, the sliding rail seat is further provided with a self-locking assembly, the self-locking assembly comprises a self-locking sliding rod and a self-locking sliding plate, a tension spring is sleeved on the self-locking sliding rod, the self-locking sliding rod penetrates through the sliding rail seat, and both ends of the self-locking sliding rod are fixedly connected with the self-locking sliding plate.

[0012] As a further improvement of the above technical solution, the driving mechanism comprises a driving motor, a chain wheel transmission assembly and a divider, the output end of the driving motor is in linkage connection with the chain wheel transmission assembly, the chain wheel transmission assembly is connected with the divider, the divider is in transmission connection with the transmission shaft, and a proximity switch is further arranged on one side of the divider.

[0013] In summary, the beneficial effects of the present application are as follows:

[0014] The present application can be applied to clamping and conveying packaging bags of different sizes, is flexible to use, has the advantages of simple structure, convenient clamping action control and the like, and the supporting assembly arranged at the bag feeding station and the bag discharging station of the packaging machine on the turntable mechanism can release the clamping force of the clamping and grabbing mechanism, so that the clamping and grabbing mechanism can still loosen the bag normally in case of failure, thereby improving the practicality of the bag clamping device. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model discloses further illustrate below combining with the drawings and examples.

[0016] Figure 1 It is the structure schematic diagram of bag clamping device of the rotary table bag feeding type packaging machine of the utility model;

[0017] Figure 2 It is the structure schematic diagram of the clamping and grabbing mechanism installation on the rotary table mechanism in the utility model;

[0018] Figure 3 It is the structure schematic diagram of the clamping and grabbing mechanism in the utility model;

[0019] Figure 4 It is the structure schematic diagram of the drive mechanism in the utility model;

[0020] Figure 5 It is the structure schematic diagram of the prop open subassembly in the utility model.

[0021] The figure mark explanation in the drawing:

[0022] 1, rotary table mechanism;11, circular work position disc;12, fixed disc;13, transmission shaft;2, clamping and grabbing mechanism;21, clamping and grabbing arm subassembly;211, clamping and grabbing arm;212, connecting rod rocker arm;213, bidirectional slide rail;214, clamping and grabbing finger;22, cam push open subassembly;221, slide rail seat;222, linear slide rail;223, cam plate;23, push open roller plate;231, roller wheel;24, self-locking subassembly;241, self-locking slide bar;242, self-locking slide plate;243, tension spring;3, drive mechanism;31, drive motor;32, chain wheel transmission subassembly;321, protective cover;33, divider;34, proximity switch;4, prop open subassembly;41, prop open plate;42, prop open cylinder;43, prop open controller. Specific implementation

[0023] The technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment, and obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art belong to the scope of the utility model protection.

[0024] Those skilled in the art shall understand that, in the disclosure of the utility model, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation on the utility model.

[0025] In the description of the utility model, if there is a word such as "several" description, its meaning is one or more, the meaning of multiple is two and above, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number. If the first, second, third is described, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0026] Referring to Figures 1 to 5 , the following will give several embodiments of a bag clamping device of a rotary disc bag feeding type packaging machine.

[0027] A bag clamping device of a rotary disc bag feeding type packaging machine, as shown in Figure 1 , 5 , comprises a rotary disc mechanism 1, a clamping and grabbing mechanism 2 distributed circumferentially on the outer side edge of the rotary disc mechanism 1 and a driving mechanism 3 for driving the rotary disc mechanism 1 to rotate, a support opening assembly 4 is arranged at the top end of the rotary disc mechanism 1 corresponding to the bag feeding station and the bag discharging station of the packaging machine, the support opening assembly 4 comprises a support opening plate 41, a support opening cylinder 42 and a support opening controller 43, the support opening plate 41 is in L-shaped structure, one end of which extends out of the rotary disc mechanism 1 and is located between the clamping and grabbing mechanisms 2, the other end of the support opening plate 41 is connected with the support opening cylinder 42, and the support opening cylinder 42 is connected with the support opening controller 43 in cooperation, so that the support opening cylinder 42 drives the support opening plate 41 to open the clamping and grabbing mechanism 2 under the control of the support opening controller 43.

[0028] Specifically, the support opening assembly 4 arranged at the top end of the rotary disc mechanism 1 corresponding to the bag feeding station and the bag discharging station of the packaging machine can release the clamping force of the clamping and grabbing mechanism 2, the support opening controller 43 is used to control the support opening cylinder 42 to drive the support opening plate 41 to push forward, and the length of the support opening plate 41 is just able to abut on the connecting rod rocker arm 212 of the left and right clamping and grabbing mechanisms 2, thereby being able to forcibly control the opening and closing of the clamping and grabbing mechanism 2; so that the clamping and grabbing mechanism 2 can still loosen the bag normally in the case of failure, thereby improving the practicability of the bag clamping device.

[0029] In the embodiment, the rotary table mechanism 1 comprises a circular work station disc 11, a fixed disc 12 and a transmission shaft 13, the fixed disc 12 is stacked on the circular work station disc 11, one end of the circular work station disc 11 is in transmission connection with the transmission shaft 13, the transmission shaft 13 is in linkage connection with the driving mechanism 3 and drives the circular work station disc 11 to rotate.

[0030] Specifically, the diameter of the circular work station disc 11 is larger than that of the fixed disc 12, and a plurality of installation grooves for installing the clamping and grabbing mechanism 2 are formed on the side of the circular work station disc 11 connected with the clamping and grabbing mechanism 2, the circular work station disc 11 is in transmission connection with the driving mechanism 3 through the transmission shaft 13 and rotates, the fixed disc 12 is installed on the top end of the circular work station disc 11, and one side thereof is connected with the driving mechanism 3 through the inner transmission shaft 13, the inner transmission shaft 13 is located in the transmission shaft 13 and is coaxially arranged with the transmission shaft 13, in the normal state, the fixed disc 12 does not rotate, and in the special case, the inner transmission shaft 13 can be driven by the driving mechanism 3 to drive the fixed disc 12 to rotate.

[0031] As shown in Figure 2 , 3 In the embodiment, the clamping and grabbing mechanism 2 comprises left and right symmetrically arranged clamping and grabbing arm 211 assemblies 21 and cam push open assemblies 22 for supporting the clamping and grabbing arm 211 assemblies 21, the clamping and grabbing arm 211 assemblies 21 are in transmission connection with the cam push open assemblies 22, the clamping and grabbing arm 211 assembly 21 comprises a clamping and grabbing arm 211, a connecting rod rocker arm 212 and a bidirectional sliding rail 213, one end of the clamping and grabbing arm 211 is in sliding connection with the bidirectional sliding rail 213, the other end is connected with a clamping and grabbing finger 214, the connecting rod rocker arm 212 is composed of two connecting rods which are hingedly connected with each other, one of the connecting rods is in movable connection with the clamping and grabbing arm 211 through a screw, the other connecting rod is fixedly connected with the clamping and grabbing finger 214, and the opening and closing of the clamping and grabbing finger 214 is controlled through the connecting rod rocker arm 212; the clamping and grabbing arm 211 is further connected with a push open roller plate 23, one end of the push open roller plate 23 is rotatably connected with a roller wheel 231, the roller wheel 231 abuts against the cam push open assembly 4 and pushes the connecting rod rocker arm 212 to slide left and right along the bidirectional sliding rail 213 under the action of the cam push open assembly 4.

[0032] Specifically, at the upper bag and lower bag stations, the left and right clamping arms 211 can be actuated to open the left and right clamping fingers 214 by pressing the connecting rod rocker arm 212, thereby achieving accurate control. When the circular work station disc 11 rotates, if the connecting rod rocker arm 212 does not actuate, the left and right clamping arms 211 will be in a relatively close position under the action of the horizontally arranged reset spring. If the cam push-open assembly 22 causes the clamping arms 211 to move outward, the clamping arms 211 will move away from each other in a roughly symmetrical manner, and the connecting rod rocker arm 212 will then push the left and right clamping fingers 214 to open and close. After the outward movement, the mutual approach of the clamping arms 211 is achieved by the pulling force of the reset spring. The clamping arms 211 are connected to the double-track slide rails through a guide, the double-track slide rails 213 are fixed in the bottom groove of the circular work station disc 11, one end of the reset spring hooks the connecting rod rocker arm 212, and the other end hooks the clamping fingers 214. Under the elastic force of the reset spring, the clamping fingers 214 can be automatically locked after opening and closing. In addition, the roller wheels 231 are fixed on the push-open roller plate 23, the push-open roller plate 23 is connected perpendicularly to the clamping arms 211, and the roller wheels 231 are then used to control the left and right sliding of the clamping arms 211 along the double-track slide rails 213 under the driving force of the cam push-open assembly 4, thereby facilitating the adjustment of the distance between the clamping arm 211 assemblies 21 and the supports, and facilitating the clamping of different sizes of packaging bags.

[0033] In the present embodiment, the cam push-open assembly 4 includes a slide rail seat 221, a linear slide rail 222, and a cam plate 223. One end of the slide rail seat 221 is fixedly connected to the bottom end of the circular work station disc 11, the linear slide rail 222 is arranged axially on the slide rail seat 221, and the cam plate 223 is slidably connected to the linear slide rail 222. The cross section of the cam plate 223 is in the shape of an arrow symbol, and the inclined surfaces at both ends thereof are respectively in transmission connection with the roller wheels 231. The slide rail seat 221 is further provided with a self-locking assembly 24, which includes a self-locking slide rod 241 and a self-locking slide plate 242. The self-locking slide rod 241 is externally sleeved with a tension spring 243, penetrates through the slide rail seat 221, and is fixedly connected to the self-locking slide plate 242 at both ends thereof.

[0034] Specifically, the cam pushing open assembly 22 can control the opening of the clamping arm 211 assembly 21, the cam plate 223 on the slide rail seat 221 slides up and down along the linear slide rail 222, the cam plate 223 is pushed to rotate the roller wheel 231, and the clamping arm 211 assembly 21 is driven to slide left and right along the bidirectional slide rail 213, so that the opening and closing of the clamping arm are realized. The self-locking assembly 24 arranged on the slide rail seat 221 limits the movement of the cam pushing plate, thereby controlling the opening and closing state of the clamping arm 211 assembly 21. When the clamping arm 211 assembly 21 needs to maintain the open state, the cam plate 223 slides to the top end along the linear slide rail 222, the self-locking slide rod 241 on the self-locking assembly 24 fixes the self-locking slide plate 242 at the fixed position of the self-locking slide plate 242 by means of the tension spring 243, thereby locking the position of the cam plate 223, so that it cannot be lowered, thereby controlling the clamping arm assembly to always maintain the open state. Conversely, the self-locking slide rod 241 is released, and is reset under the elastic force of the tension spring 243, and the clamping arm assembly is controlled to retract.

[0035] As shown in the drawings, Figure 4 In the embodiment, the driving mechanism 3 includes a driving motor 31, a chain wheel transmission assembly 32 and a divider 33. The output end of the driving motor 31 is connected with the chain wheel transmission assembly 32 in linkage, the chain wheel transmission assembly 32 is connected with the divider 33, the divider 33 is in transmission connection with the transmission shaft 13, and a proximity switch 34 is further arranged on one side of the divider 33.

[0036] Specifically, the driving motor 31 mainly provides driving power, drives the divider 33 to operate through the chain wheel transmission assembly 32, and controls the operation of the rotary disc mechanism 1. Meanwhile, the proximity switch 34 can sense and detect the stop, start, rotating speed of the driving mechanism 3 and the rotary disc mechanism 1, the set position of the working machine, the limit position of the moving machine or component, and the stop position of the divider 33.

[0037] Working principle of the utility model:

[0038] When the driving motor 31 works to drive the circular work position disc 11 to rotate forward, the circular work position disc 11 drives the clamping mechanism 2 to rotate, the opening mechanism at the upper bag working position forcibly controls the clamping mechanism 2 to open to both sides, so as to facilitate the bag feeding and the bag taking, the clamping arm 211 of the clamping mechanism 2 is pulled outward by the connecting rod rocker arm 212, so that the automatic adjustment of the opening degree between the left and right clamping arms 211 is completed. Under the action of the cam pushing open assembly 22 and the reset spring, the left and right clamping arms 211 are retracted, and the automatic adjustment of the opening degree between the left and right clamping arms 211 is completed, so that the clamping and conveying of the packaging bags of different sizes are faster adapted. The bag clamping device of the rotary disc bag feeding type packaging machine has simple structure and can be adjusted arbitrarily without being limited by factors, so the application range is flexible.

[0039] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A bag gripping device of a rotary disc bagging machine, comprising a rotary disc mechanism, a gripping mechanism circumferentially distributed on the outer edge of the rotary disc mechanism, and a driving mechanism for driving the rotary disc mechanism to rotate, characterized in that, The top end of the rotating disc mechanism is provided with a support opening assembly for releasing the clamping force of the clamping and grabbing mechanism at the bag feeding and bag discharging stations of the packaging machine, the support opening assembly comprises a support opening plate, a support opening cylinder and a support opening controller, the support opening plate has an L-shaped structure, one end of which extends out of the rotating disc mechanism and is located between the clamping and grabbing mechanisms, the other end of the support opening plate is connected with the support opening cylinder, and the support opening cylinder is connected with the support opening controller in a matched mode, so that the support opening cylinder drives the support opening plate to open the clamping and grabbing mechanisms under the control of the support opening controller.

2. The bag gripping device of a rotary drum bagging machine according to claim 1, characterized in that The rotating disc mechanism comprises a circular work station disc, a fixed disc and a transmission shaft, the fixed disc is arranged in a stacked mode on the circular work station disc, one end of the circular work station disc is connected with the transmission shaft in a transmission mode, the transmission shaft is connected with the driving mechanism in a linkage mode, and the transmission shaft drives the circular work station disc to rotate.

3. The bag gripping device of a rotary drum bagging machine according to claim 2, characterized in that The clamping and grabbing mechanism comprises left and right symmetrically arranged clamping and grabbing arm assemblies and a cam pushing open assembly for supporting and opening the clamping and grabbing arm assemblies, the clamping and grabbing arm assemblies are connected with the cam pushing open assembly in a transmission mode, the clamping and grabbing arm assembly comprises a clamping and grabbing arm, a connecting rod rocker arm and a bidirectional sliding rail, one end of the clamping and grabbing arm is connected with the bidirectional sliding rail in a sliding mode, the other end of the clamping and grabbing arm is connected with a clamping and grabbing finger, the connecting rod rocker arm is composed of two connecting rods which are hingedly connected with each other, one of the connecting rods is connected with the clamping and grabbing arm in a movable mode through a screw, the other connecting rod is fixedly connected with the clamping and grabbing finger, and the opening and closing of the clamping and grabbing finger are controlled through the connecting rod rocker arm.

4. The bag gripping device of a rotary drum bagging machine according to claim 3, characterized in that The clamping and grabbing arm is further connected with a pushing open roller plate, one end of the pushing open roller plate is rotatably connected with a roller wheel, the roller wheel abuts against the cam pushing open assembly and pushes the connecting rod rocker arm to slide leftward and rightward along the bidirectional sliding rail under the action of the cam pushing open assembly.

5. The bag gripping device of a rotary drum bag-on-stand packaging machine according to claim 4, characterized in that, The cam pushing open assembly comprises a sliding rail seat, a straight line sliding rail and a cam plate, one end of the sliding rail seat is fixedly connected with the bottom end of the circular work station disc, the straight line sliding rail is arranged on the sliding rail seat in an axial direction, the cam plate is connected with the straight line sliding rail in a sliding mode, and the cross section of the cam plate has an arrow symbol shape, and the inclined surfaces at the two ends of the cam plate are respectively connected with the roller wheels in a transmission mode.

6. The bag gripping device of a rotary drum bag-on-stand packaging machine according to claim 5, characterized in that, A self-locking assembly is further arranged on the sliding rail seat, the self-locking assembly comprises a self-locking sliding rod and a self-locking sliding plate, a tension spring is sleeved on the self-locking sliding rod, the self-locking sliding rod penetrates through the sliding rail seat, and the two ends of the self-locking sliding rod are fixedly connected with the self-locking sliding plate.

7. The bag gripping device of a rotary drum bag-on-stand packaging machine according to claim 4, characterized in that, The driving mechanism comprises a driving motor, a chain wheel transmission assembly and a divider, the output end of the driving motor is connected with the chain wheel transmission assembly in a linkage mode, the chain wheel transmission assembly is connected with the divider, the divider is connected with the transmission shaft in a transmission mode, and a proximity switch is arranged on one side of the divider.

Images