Bag clamping and opening mechanism

Abstract

The utility model relates to the field of bags, in particular to a bag clamping and opening mechanism which comprises a supporting table, a conveying device used for conveying bags is erected on the supporting table, the bottom of the supporting table is provided with a first set of clamping assembly and a second set of clamping assembly which are used for clamping the bags, and the bottom of the supporting table is provided with a driving piece. The driving part can drive the first group of clamping assemblies and the second group of clamping assemblies to be relatively close to or far away from each other, the conveying device is arranged in the middle of the supporting table, a through feeding hole is formed in the supporting table, and a conveying channel communicating with the feeding hole is formed in the conveying device; according to the utility model, the two groups of clamping assemblies can be simultaneously driven to be relatively close to or far away from each other through the driving piece, and the first group of clamping assemblies and the second group of clamping assemblies are used for clamping bags in the feeding holes, so that the clamping precision and efficiency are improved, and compared with manual bag opening, the consistency and efficiency are higher through the arranged bag clamping and opening mechanism; and the convenience and efficiency of subsequent packaging are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bag field, concretely relates to a bag clamping and opening mechanism. BACKGROUND

[0002] As packaging materials, bags are widely used in various fields. According to the different materials and application fields, the types of bags are also various, including but not limited to woven bags, film bags, thin paper bags, composite food bags, etc. Thin paper bags can be used in other fields including but not limited to supermarkets, food, etc. In some supermarkets, automatic bag ejectors are used to discharge film bags for quick bag taking and subsequent opening and packaging by users.

[0003] The existing automatic bag ejector usually includes key components such as a machine body part, a transmission part, and a control part. The transmission part drives the film plastic bag to roll through the driving motor, so that the film bag passes through the warehouse body for loading the bag roll and is guided out of the warehouse opening to facilitate the user to take the bag for packaging. These components work together to realize the loading, conveying, and ejecting of plastic bags.

[0004] However, the existing bag clamping and opening mechanism still has some significant defects in practical application. Since the automatic bag ejector is usually only used for conveying and ejecting bags, manual bag breaking and opening are required after the bag is ejected. This step usually needs to be completed by manual operation, which increases the labor cost. When opening the bag manually, the size and shape of the opened bag may be inconsistent due to different operation habits and forces of different people, which may cause the bag to slip or break. The stability and reliability of the bag clamping and opening mechanism are poor, which affects the subsequent convenient packaging and efficiency. In addition, the structure design of some bag opening mechanisms is relatively complex, the bag opening driving structure is relatively complicated, which leads to complex operation and low efficiency, increases the labor intensity of operation, and cannot meet the needs of existing packaging materials. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the above defects and provide a bag clamping and opening mechanism to solve the technical problem of the lack of bag clamping and opening structure in the bag ejector in the background art, so that manual opening of the bag is usually required, and the consistency and efficiency of manual opening of the bag are poor, which affects the convenience and efficiency of subsequent packaging.

[0006] The utility model aims to achieve the following ways:

[0007] The utility model provides a bag clamping and opening mechanism, which comprises a support table, a conveying device for conveying bags is arranged on the support table, a first clamping assembly and a second clamping assembly for clamping the bags are arranged on the bottom of the support table, the first clamping assembly and the second clamping assembly are symmetrically arranged, a driving member is arranged on the bottom of the support table, the driving member can drive the first clamping assembly and the second clamping assembly to move close to or away from each other, the conveying device is arranged in the middle of the support table, a feeding hole is arranged on the support table, the feeding hole is arranged between the first clamping assembly and the second clamping assembly, and a conveying channel is formed in the conveying device and communicates with the feeding hole.

[0008] Further in the above description, the conveying device comprises two symmetrically arranged conveying belts, the conveying belts are installed on the support table through vertical plates, the conveying channel is formed between the two conveying belts, and the two conveying belts are synchronously driven to rotate through a transmission assembly.

[0009] The two symmetrically arranged conveying belts are installed on the support table through vertical plates, and the conveying channel is formed between the two conveying belts, so that the bags pass through the conveying channel and pass through the feeding hole, thereby realizing stable conveying of the bags. The two conveying belts are synchronously driven to rotate through the transmission assembly, so that the synchronism and stability of the bags in the conveying process are ensured, and deviation or jamming of the bags caused by asynchronous conveying is avoided.

[0010] Further in the above description, the driving member comprises a driving motor, a synchronous wheel and a belt, the driving motor is arranged on the bottom of the support table, the conveying end of the driving motor is connected with the synchronous wheel, the belt is meshed with the synchronous wheel, and the belt extends along the sliding direction of the first clamping assembly and the second clamping assembly.

[0011] The driving motor drives the two clamping assemblies to move close to or away from each other through the synchronous wheel and the belt, thereby realizing accurate control of the clamping action. The two clamping assemblies are controlled to move close to or away from each other through the belt, the extension direction of the belt is consistent with the sliding direction of the clamping assembly, the synchronism and stability of the clamping action are ensured, and the accuracy and reliability of clamping are improved.

[0012] Specifically, the synchronous wheel comprises a driving wheel and a rotating wheel, the driving wheel is connected with the driving motor, the driving motor and the driving wheel are arranged on one end of the support table close to the first clamping assembly, the rotating wheel is arranged on the other end of the support table close to the second clamping assembly through a bearing seat, one end of the belt passes through the driving wheel and the rotating wheel in sequence and is connected with the other end in a closed loop, and the first clamping assembly and the second clamping assembly are connected with the belt.

[0013] Further in the above description, the synchronous wheel and the belt are provided with two groups, the two synchronous wheels are connected through a linkage rod, so that the driving motor can simultaneously drive the two belts to rotate and transmit.

[0014] Two sets of synchronous wheels and belts are arranged and connected through linkage rods, so that the driving motor can simultaneously drive the two sets of belts to rotate, ensuring the stability of the synchronous action of the clamping assembly. The coordination and efficiency of the clamping action are improved, and the complexity of the operation is reduced.

[0015] Further in the above description, the first and second clamping assemblies each include a clamping jaw, a connecting rod, a mounting plate, and a pressing block. The clamping jaw is connected to the mounting plate through the connecting rod. The bottom of the support table is provided with a sliding member connected to the mounting plate. The clamping jaw can be opened and closed for clamping through the driving of the connecting rod. The pressing block is used for pressing the belt and is connected to the mounting plate.

[0016] Further in the above description, the clamping jaw includes an upper clamping jaw and a lower clamping jaw. One end of each of the upper and lower clamping jaws is hingedly connected to the connecting rod, so that the upper and lower clamping jaws can be relatively opened or closed.

[0017] The upper and lower clamping jaws can be driven to be relatively opened or closed through the connecting rod. The flexible opening and closing of the clamping jaw are achieved, ensuring the accuracy and stability of the clamping action and avoiding the bag from slipping or breaking due to uneven clamping force.

[0018] Further in the above description, the connecting rod includes an upper connecting rod, a lower connecting rod, and a driving rod. One end of each of the upper and lower connecting rods is hingedly connected to the driving rod. The other end of each of the upper and lower connecting rods is connected to the upper and lower clamping jaws, respectively. One end of the driving rod passes through the support table and is connected to a stop rod. The support table is provided with a stop block for controlling the opening and closing of the upper and lower clamping jaws.

[0019] The movement of the stop rod towards the stop block is driven by the driving rod, so that the stop rod is blocked by the stop block. The driving rod can drive the opening of the upper / lower connecting rod to achieve accurate control of the clamping jaw, improve the stability and reliability of the clamping action, simplify the operation process, and improve the efficiency. Conversely, when the stop rod is separated from the stop block driven by the driving rod, the upper / lower connecting rod is reset to control the clamping jaw to reasonably clamp. At the same time, under the sliding away from the stop block, the clamped bag can be opened.

[0020] Further in the above description, a guide sliding groove is formed in the support table and extends along the support plate towards the conveying device. One end of the driving rod passes through the sliding groove and is exposed on the support table.

[0021] Through the formed sliding groove, the driving rod drives the stop rod to move towards or away from the stop block along the sliding groove, so that the opening and clamping action of the upper / lower clamping jaw can be conveniently controlled. The opening and clamping control of the mechanical structure is stable and reliable.

[0022] The utility model discloses a beneficial effect: conveying device erects on support platform, can efficiently, stably transmission bag, has improved the efficiency and reliability of bag transmission, through conveying device can with bag along the conveying channel pass into the hole and enter between first group of clamping assembly and second group of clamping assembly, through the clamping assembly of left and right symmetry setting can evenly distribute clamping force, ensure that bag is balanced in the clamping process, avoid the deformation or rupture of bag because of the uneven clamping force, further improve the stability and accuracy of clamping, use drive piece can drive two group clamping assembly relative close or far -away simultaneously, and by first group of clamping assembly / second group of clamping assembly to the bag of hole clamping action, improve the precision and efficiency of clamping, make it through the bag opening bag mechanism of setting compared with the consistency and efficiency of artificial opening bag higher, improve the convenience and efficiency of subsequent packing. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the whole structure schematic diagram of the top view angle of this embodiment;

[0024] Figure 2 It is the whole structure schematic diagram of the bottom view angle of this embodiment;

[0025] Figure 3 It is the whole structure schematic diagram of drive piece in this embodiment;

[0026] Figure 4 It is the front view of this embodiment;

[0027] Figure 5 It is Figure 4 The sectional view of A-A;

[0028] The reference signs in the drawing are respectively:

[0029] 100-support platform, 101-inlet hole, 102-slotted guide;200-conveying device, 201-conveying belt, 202-vertical plate, 203-conveying channel;300-first group of clamping assembly, 301-clamping jaw, 3011-upper clamping block, 3012-lower clamping block, 302-sliding piece, 303-mounting plate, 304-pressing block, 305-linkage member, 3051-upper link, 3052-lower link, 3053-driving rod, 3054-stop rod;400-second group of clamping assembly;500-drive piece, 501-driving motor, 502-synchronous wheel, 503-belt, 504-linkage rod;600-stop block. DETAILED DESCRIPTION

[0030] The utility model discloses a beneficial effect: conveying device erects on support platform, can efficiently, stably transmission bag, has improved the efficiency and reliability of bag transmission, through conveying device can with bag along the conveying channel pass into the hole and enter between first group of clamping assembly and second group of clamping assembly, through the clamping assembly of left and right symmetry setting can evenly distribute clamping force, ensure that bag is balanced in the clamping process, avoid the deformation or rupture of bag because of the uneven clamping force, further improve the stability and accuracy of clamping, use drive piece can drive two group clamping assembly relative close or far -away simultaneously, and by first group of clamping assembly / second group of clamping assembly to the bag of hole clamping action, improve the precision and efficiency of clamping, make it through the bag opening bag mechanism of setting compared with the consistency and efficiency of artificial opening bag higher, improve the convenience and efficiency of subsequent packing.

[0031] This embodiment, refer to Figures 1-5A bag clamping and opening mechanism includes a support table 100, a conveying device 200 for conveying bags is arranged on the support table 100, a first set of clamping assemblies 300 and a second set of clamping assemblies 400 for clamping bags are arranged on the bottom of the support table 100, the first set of clamping assemblies 300 and the second set of clamping assemblies 400 are arranged symmetrically, a driving member 500 is arranged on the bottom of the support table 100, the driving member 500 can drive the first set of clamping assemblies 300 and the second set of clamping assemblies 400 to move close to or away from each other, the conveying device 200 is arranged in the middle of the support table 100, a feeding hole 101 is arranged on the support table 100, the feeding hole 101 is arranged between the first set of clamping assemblies 300 and the second set of clamping assemblies 400, and a conveying channel 203 is formed in the conveying device 200 and communicates with the feeding hole 101.

[0032] The conveying device 200 includes two symmetrically arranged conveying belts 201, the conveying belts 201 are installed on the support table 100 through vertical plates 202, the conveying channel 203 is formed between the two conveying belts 201, and the two conveying belts 201 are synchronously driven to rotate through a transmission assembly.

[0033] The two symmetrically arranged conveying belts 201 are installed on the support table 100 through the vertical plates 202, and the conveying channel 203 is formed between the two conveying belts 201, so that the bags pass through the conveying channel 203 and pass through the feeding hole 101, thereby realizing stable conveying of the bags. The two conveying belts 201 are synchronously driven to rotate through the transmission assembly, so as to ensure the synchronization and stability of the bags in the conveying process, and avoid bag deviation or jam caused by asynchronous conveying.

[0034] The driving member 500 includes a driving motor 501, a synchronous wheel 502 and a belt 503, the driving motor 501 is arranged on the bottom of the support table 100, the conveying end of the driving motor 501 is connected with the synchronous wheel 502, the belt 503 is meshed and connected with the synchronous wheel 502, and the belt 503 extends along the sliding direction of the first set of clamping assemblies 300 and the second set of clamping assemblies 400.

[0035] The driving motor 501 drives the two sets of clamping assemblies to move close to or away from each other through the synchronous wheel 502 and the belt 503, thereby realizing accurate control of the clamping action. The two sets of clamping assemblies are controlled to move close to or away from each other through the belt 503, the extension direction of the belt 503 is consistent with the sliding direction of the clamping assemblies, thereby ensuring the synchronization and stability of the clamping action, and improving the accuracy and reliability of the clamping.

[0036] Specifically, the synchronous wheel 502 includes a driving wheel and a rotating wheel, the driving wheel is connected with the driving motor 501, the driving motor 501 and the driving wheel are installed on the support table 100 close to one end of the first group of clamping assemblies 300, and the rotating wheel is installed on the support table 100 close to one end of the second group of clamping assemblies 400 through a bearing seat, one end of the belt 503 passes through the driving wheel and the rotating wheel in turn, and the other end is connected in a closed loop, and the first group of clamping assemblies 300 and the second group of clamping assemblies 400 are connected with the belt 503.

[0037] The synchronous wheel 502 and the belt 503 are provided in two groups, the two groups of synchronous wheels 502 are connected through the linkage rod 504, so that the driving motor 501 can simultaneously drive the two groups of belts 503 to rotate and drive.

[0038] The two groups of synchronous wheels 502 and the belts 503 are provided, and are connected through the linkage rod 504, so that the driving motor 501 can simultaneously drive the two groups of belts 503 to rotate and drive, thereby ensuring the stability of the synchronous action of the clamping assemblies. The coordination and efficiency of the clamping action are improved, and the complexity of operation is reduced.

[0039] The first group of clamping assemblies 300 and the second group of clamping assemblies 400 each include a clamping jaw 301, a connecting rod 305, a mounting plate 303 and a pressing block 304, the clamping jaw 301 is connected with the mounting plate 303 through the connecting rod 305, the bottom of the support table 100 is provided with a sliding piece 302 connected with the mounting plate 303, the clamping jaw 301 can be opened and clamped through the driving of the connecting rod 305, and the pressing block 304 is used for pressing the belt 503 and is connected with the mounting plate 303.

[0040] The clamping jaw 301 includes an upper clamping block 3011 and a lower clamping block 3012, one end of the upper clamping block 3011 and the lower clamping block 3012 is hinged with the connecting rod 305, so that the upper clamping block 3011 and the lower clamping block 3012 can be relatively opened or closed.

[0041] The upper clamping block 3011 and the lower clamping block 3012 can be driven to be relatively opened or closed through the connecting rod 305. The flexible opening and closing of the clamping jaw 301 is realized, the accuracy and stability of the clamping action are ensured, and the bag is prevented from slipping or breaking due to uneven clamping force.

[0042] The connecting rod 305 includes an upper connecting rod 3051, a lower connecting rod 3052 and a driving rod 3053, one end of the upper connecting rod 3051 and the lower connecting rod 3052 is hinged with the driving rod 3053, the other end of the upper connecting rod 3051 and the lower connecting rod 3052 is connected with the upper clamping block 3011 and the lower clamping block 3012 respectively, one end of the driving rod 3053 passes through the support table 100 and is connected with a stop rod 3054, and the support table 100 is provided with a stop block 600 for controlling the opening and closing of the upper clamping block 3011 and the lower clamping block 3012.

[0043] The movement of the blocking rod 3054 towards the blocking block 600 is driven by the driving rod 3053, and the blocking rod 3054 is blocked by the blocking block 600, so that the driving rod 3053 can drive the opening of the up / down connecting rod 3052 to realize the precise control of the clamping jaw 301, improve the stability and reliability of the clamping action, simplify the operation process, and improve the efficiency. Conversely, when the driving rod 3053 drives the blocking rod 3054 to be separated from the blocking block 600, the up / down connecting rod 3052 is reset to control the clamping jaw 301 to reasonably clamp, and at the same time, under the sliding away from the blocking block 600, the clamped bag can be opened.

[0044] The support table 100 is provided with a through sliding groove 102, and the sliding groove 102 extends along the support plate to the conveying device 200. One end of the driving rod 3053 penetrates the sliding groove 102 and is exposed on the support table 100.

[0045] Through the sliding groove 102, the driving rod 3053 drives the blocking rod to move close to or away from the blocking block 600 along the sliding groove 102, so that the opening and clamping action of the up / down clamping block 3012 can be conveniently controlled, and the opening and clamping control of the mechanical structure is stable and reliable.

[0046] The specific bag clamping and opening action process in the embodiment is as follows:

[0047] The feeding end of the roll material film bag is inserted into the conveying channel 203, and the film belt is conveyed through the feeding hole 101 by the rotation of the two conveying belts 201. After the external bag breaking mechanism breaks the bag of the roll material film bag, the conveying belt 201 continues to convey the independent bag broken bag to walk a certain distance until the clamping position stops. The bag is located between the first clamping assembly 300 and the second clamping assembly 400. The rotation of the driving motor 501 drives the belt 503 to simultaneously drive the first clamping assembly 300 and the second clamping assembly 400 to move close to each other. When the first clamping assembly 300 and the second clamping assembly 400 move close to the bag in the feeding hole 101, the blocking block 600 on the support plate blocks the blocking rod 3054 on the clamping assembly, so that the driving rod 3053 can drive the opening of the up / down connecting rod 3052 to drive the opening of the up / down clamping block 3012. At this time, the first clamping assembly 300 and the second clamping assembly 400 are moved away from each other to the feeding hole 101, the blocking block 600 releases the blocking of the blocking rod, and the driving rod 3053 can drive the closing of the up / down connecting rod 3052 to drive the up / down clamping block 3012 to clamp the bag, and move away from each other to open the bag of the bag.

[0048] The two groups of clamping assemblies arranged symmetrically left and right can uniformly distribute the clamping force, ensure that the bag is balanced in the clamping process, avoid the bag deformation or rupture caused by uneven clamping force, further improve the stability and accuracy of clamping, meanwhile, the driving element 500 can drive the two groups of clamping assemblies to relatively close or away at the same time, and the bag in the feeding hole 101 is clamped by the first / second group of clamping assemblies 400, which improves the clamping accuracy and efficiency, solves the problems of slow bag opening efficiency and poor bag opening effect in the prior art, and affects the subsequent packaging convenience and efficiency.

[0049] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as the above preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any simple modification, equivalent change and modification of the above embodiment belong to the scope of the present application.

Claims

1. A bag clamping and opening mechanism comprising a support table, characterized by: The support table is provided with a conveying device for conveying bags, and the bottom of the support table is provided with a first set of clamping assemblies and a second set of clamping assemblies for clamping bags. The first set of clamping assemblies and the second set of clamping assemblies are symmetrically arranged left and right. The bottom of the support table is provided with a driving member that can drive the first set of clamping assemblies and the second set of clamping assemblies to move closer or farther away from each other. The conveying device is arranged in the middle of the support table. The support table is provided with a feeding hole that is in communication with the conveying device. The feeding hole is arranged between the first set of clamping assemblies and the second set of clamping assemblies. The conveying device is provided with a conveying channel that is in communication with the feeding hole.

2. The bag grasping and opening mechanism of claim 1, wherein: The conveying device comprises two symmetrically arranged conveying belts. The conveying belts are installed on the support table through vertical plates. The conveying channel is formed between the two conveying belts. The two conveying belts are synchronously driven to rotate through a transmission assembly.

3. The bag grasping and opening mechanism of claim 1, wherein: The driving member comprises a driving motor, a synchronous wheel and a belt. The driving motor is arranged at the bottom of the support table. The conveying end of the driving motor is connected with the synchronous wheel. The belt is connected with the synchronous wheel in meshing mode. The belt extends along the sliding direction of the first set of clamping assemblies and the second set of clamping assemblies.

4. The bag grasping and opening mechanism of claim 3, wherein: The synchronous wheel and the belt are arranged in two groups. The two groups of synchronous wheels are connected through a linkage rod, so that the driving motor can simultaneously drive the two groups of belts to rotate and transmit power.

5. A bag gripping and opening mechanism according to claim 3 or 4, wherein: The first set of clamping assemblies and the second set of clamping assemblies each comprise a clamping jaw, a connecting rod, a mounting plate and a pressing block. The clamping jaw is connected with the mounting plate through the connecting rod. The bottom of the support table is provided with a sliding member connected with the mounting plate. The clamping jaw can be opened and clamped through the driving of the connecting rod. The pressing block is used for pressing the belt and is connected with the mounting plate.

6. A bag opening and gripping mechanism according to claim 5, wherein: The clamping jaw comprises an upper clamping jaw and a lower clamping jaw. One end of the upper clamping jaw and one end of the lower clamping jaw are hingedly connected with the connecting rod, so that the upper clamping jaw and the lower clamping jaw can be relatively opened or closed.

7. The bag opening and gripping mechanism of claim 6, wherein: The connecting rod comprises an upper connecting rod, a lower connecting rod and a driving rod. One end of the upper connecting rod and one end of the lower connecting rod are hingedly connected with the driving rod. The other end of the upper connecting rod is connected with the upper clamping jaw, and the other end of the lower connecting rod is connected with the lower clamping jaw. One end of the driving rod penetrates through the support table and is connected with a stopper. The support table is provided with a stop block for controlling the opening and closing of the upper clamping jaw and the lower clamping jaw.

8. The bag opening and gripping mechanism of claim 7, wherein: The support table is provided with a sliding groove in communication. The sliding groove extends along the support plate to the conveying device. One end of the driving rod penetrates through the sliding groove and is exposed on the support table.

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