Novel universal bag opening mechanism for packaging machine

Abstract

The utility model provides a novel packaging machine general bag opening mechanism which comprises a sliding rail vertically arranged on a packaging machine frame and further comprises a bag opening assembly and a material poking assembly which are arranged on the sliding rail in a sliding mode, and the bag opening assembly comprises a first bearing frame arranged on the sliding rail in a sliding mode and two bag opening clamps arranged on the first bearing frame in an opposite swinging mode. The poking assembly comprises a second bearing frame arranged on the sliding rail in a sliding mode, a poking rod with one end connected with the second bearing frame and a poking block connected with the other end of the poking rod. According to the novel universal bag opening mechanism for the packaging machine, the first motor drives the closed bag opening clamps in the bag opening mechanism to be inserted into an opened packaging bag, the material poking block descends to expand the bag opening clamps so as to pre-open the packaging bag, and the heights of the bag opening clamps and the material poking block can be adjusted; therefore, the bag opening mechanism can smoothly open packaging bags with different lengths, the universality of the bag opening mechanism to the packaging bags with different lengths is high, and the bag opening quality is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing machinery technical field, concretely relates to a novel packing machine general bag opening mechanism. BACKGROUND

[0002] With the rapid development of modern industry, the application of packing machinery in various trades is more and more extensive. In order to improve production efficiency, reduce labor intensity and ensure product quality, packing machinery design is constantly innovated to adapt to various packaging requirements of different industries. The bag opening mechanism, as a key part of the packing machinery, opens the packaging bag to facilitate the loading of materials into the packaging bag. If the bag opening clamp is too long, it will cause the packaging bag to tilt or even fall off. If the bag opening clamp is too short, the packaging bag will be difficult to open. Therefore, the bag opening assembly needs to be repeatedly adjusted to adapt to the packaging efficiency and quality of the packing machine.

[0003] The existing bag opening mechanism of the packing machine has complex parameter adjustment and poor adaptability when opening bags of different length specifications. The present scheme solves this technical problem. INVENTION CONTENTS

[0004] To overcome the shortcomings of the prior art, the utility model provides a novel packing machine general bag opening mechanism, which opens and fixes a packaging bag through vacuum chuck one and vacuum chuck two of a suction cup assembly, inserts a bag opening clamp in the packaging bag through a motor one, and adjusts the height of the bag opening clamp and the material poking block to smoothly open packaging bags of different lengths.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a novel packing machine general bag opening mechanism, which comprises a slide rail vertically arranged on a packing machine frame, a bag opening assembly and a material poking assembly respectively slidably arranged on the slide rail, a bearing frame one slidably arranged on the slide rail, two bag opening clamps oppositely swingably arranged on the bearing frame one, a bearing frame two slidably arranged on the slide rail, a material poking rod connected to one end of the bearing frame two, and a material poking block connected to the other end of the material poking rod. A material groove is arranged on the bearing frame one, and the material poking block passes through the material groove and is separately detachably abutted with the side parts of the two bag opening clamps. A suction cup assembly for opening a packaging bag is arranged below the bag opening assembly, and the suction cup assembly is connected to the packing machine frame.

[0006] The side of the bag opening clamp is fixedly provided with a connecting rod, the bag opening clamp is swingably arranged on the bearing frame one through the connecting rod, the end of the connecting rod is provided with a supporting arm, the suction disc assembly is provided with a roller, and the supporting arm is detachably abutted with the side of the roller.

[0007] One end of the bag opening clamp is a free end, and the other end of the bag opening clamp is provided with a reset spring, one end of the reset spring is connected with the bearing frame one.

[0008] The suction disc assembly comprises a supporting frame fixedly arranged on the packaging frame, a plurality of vacuum suction discs one arranged on the supporting frame, a bag grabbing unit movably arranged on the packaging frame and used for grabbing the packaging bag, the bag grabbing unit comprises vacuum suction discs two used for sucking the packaging bag, and the roller is arranged on the supporting frame.

[0009] The bearing frame one is vertically provided with a rack one, the packaging frame is fixedly provided with a motor one, and the output shaft of the motor one is provided with a gear one engaged with the rack one.

[0010] The packaging frame is provided with a vertical support, the sliding rail is arranged on the vertical support, the bearing frame two is provided with a sliding block in sliding connection with the sliding rail, the vertical support is rotatably provided with a synchronous wheel one and a synchronous wheel two, respectively, a synchronous belt is tensioned between the synchronous wheel one and the synchronous wheel two, the synchronous belt is connected with the bearing frame two, the vertical support is provided with a motor two, and the output shaft of the motor two is connected with the synchronous wheel one.

[0011] The bag grabbing unit further comprises a motor three fixedly arranged on the packaging frame, a bearing block connected with the rotating shaft of the motor three, a motor four arranged on the bearing block, a sliding rod slidably penetrating into the bearing block at one end, a suction disc frame arranged on the other end of the sliding rod, a plurality of vacuum suction discs two arranged on the suction disc frame, a connecting block fixedly arranged on the side of the sliding rod, a rack two arranged on the connecting block, a gear two arranged on the output shaft of the motor four, and the gear two is engaged with the rack two.

[0012] The bearing frame one is provided with a linear bearing, and the poking rod is arranged through the linear bearing.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) The packaging bag is opened and fixed by vacuum suction cup one and vacuum suction cup two of the suction cup assembly. The bag clamp in the bag opening assembly is inserted into the opening of the packaging bag by motor one, and the bag clamp is combined with the packaging bag by motor two. The material block of the material pushing assembly is lowered by motor two to expand the bag clamp and pre-open the packaging bag. The lowering of the bag clamp and the expansion of the bag clamp by the material pushing block can be carried out synchronously or sequentially to pre-open the packaging bag. The height of the bag clamp and the material pushing block are adjustable, so that the bag opening mechanism can open packaging bags of different lengths smoothly. The bag opening mechanism has strong applicability and versatility for packaging bags of different lengths and has high bag opening quality.

[0015] (2) Depending on the different packaging bag specifications, the bag opening assembly is lowered to a set height so that the support arm contacts the roller to clamp the bag at a specific angle. The bag opening assembly is highly adaptable to packaging bags of different sizes.

[0016] (3) By setting the reset spring, the closing and reset of the bag clamp is ensured. By setting the roller, the friction with the support arm is reduced. By setting the rotating roller, the friction between the material block and the bag clamp is reduced, making the expansion of the bag clamp by the barrel block smoother, and thus making the operation of the bag opening mechanism more stable and reliable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a structural schematic diagram of the bag assembly of this utility model.

[0019] Figure 3 This is a schematic diagram of the combined structure of the material feeding block and the bag clamp of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the support arm of this utility model.

[0021] Figure 5 This is a structural schematic diagram of the bag-grabbing unit of this utility model.

[0022] Figure 6 This is a schematic diagram of the combined structure of the motor and the support frame of this utility model.

[0023] Wherein, the figure: 1, slide rail; 11, vertical support; 2, bag opening assembly; 21, bearing frame one; 22, bag opening clamp; 23, connecting rod; 24, support arm; 25, return spring; 26, rack one; 27, motor one; 28, gear one; 29, linear bearing; 3, poking assembly; 31, bearing frame two; 32, poking rod; 33, poking block; 331, rotating roller; 34, synchronous wheel one; 35, synchronous wheel two; 36, synchronous belt; 37, motor two; 4, chute; 5, suction cup assembly; 51, support frame; 511, roller; 512, vacuum suction cup one; 52, bag grabbing unit; 521, vacuum suction cup two; 522, motor three; 523, bearing block; 524, motor four; 525, slide rod; 526, suction cup frame; 527, connecting block; 528, rack two; 529, gear two; 6, packaging bag. DETAILED DESCRIPTION

[0024] In order to make the technical features of the scheme clearer, the scheme will be described below through specific embodiments.

[0025] Reference Figures 1-6 A novel packaging machine universal bag opening mechanism, comprising a slide rail 1 vertically arranged on a packaging machine frame, further comprising a bag opening assembly 2 and a poking assembly 3 respectively slidingly arranged on the slide rail 1, the bag opening assembly 2 comprising a bearing frame one 21 slidingly arranged on the slide rail 1, two bag opening clamps 22 oppositely swingably arranged on the bearing frame one 21, the poking assembly 3 comprising a bearing frame two 31 slidingly arranged on the slide rail 1, a poking rod 32 connected to one end of the bearing frame two 31, and a poking block 33 connected to the other end of the poking rod 32, the bearing frame one 21 being provided with a chute 4, the poking block 33 penetrating through the chute 4 and being respectively detachably abutted with the side portions of the two bag opening clamps 22, a suction cup assembly 5 for opening the packaging bag 6 being arranged below the bag opening assembly 2, and the suction cup assembly 5 being connected with the packaging machine frame.

[0026] The side portion of the bag opening clamp 22 is fixedly provided with a connecting rod 23, the bag opening clamp 22 is swingably arranged on the bearing frame one 21 through the connecting rod 23, the end portion of the connecting rod 23 is provided with a support arm 24, the suction cup assembly 5 is provided with a roller 511, and the support arm 24 is detachably abutted with the side portion of the roller 511.

[0027] One end of the bag opening clamp 22 is a free end, the other end of the bag opening clamp 22 is provided with a return spring 25, and one end of the return spring 25 is connected with the bearing frame one 21.

[0028] The suction cup assembly 5 comprises a support frame 51 fixedly arranged on the packaging machine frame, a plurality of vacuum suction cups one 512 arranged on the support frame 51, and a bag grabbing unit 52 movably arranged on the packaging machine frame and used for grabbing the packaging bag 6, the bag grabbing unit 52 comprising a vacuum suction cup two 521 used for sucking the packaging bag 6, and the roller 511 being arranged on the support frame 51.

[0029] The vertical rack gear 26 is arranged on the bearing frame 21, and a motor 27 is fixedly arranged on the packaging frame, and the output shaft of the motor 27 is provided with a gear 28 engaged with the rack gear 26.

[0030] A vertical support 11 is arranged on the packaging frame, and the slide rail 1 is arranged on the vertical support 11, and a slide block is arranged on the bearing frame 31 and connected with the slide rail 1 in a sliding mode, and a synchronous wheel 34 and a synchronous wheel 35 are rotatably arranged on the vertical support 11, and a synchronous belt 36 is arranged between the synchronous wheel 34 and the synchronous wheel 35 and connected with the bearing frame 31, and a motor 37 is arranged on the vertical support 11, and the output shaft of the motor 37 is connected with the synchronous wheel 34.

[0031] The bag grabbing unit 52 further comprises a motor 522 fixedly arranged on the packaging frame, a bearing block 523 connected with the rotating shaft of the motor 522, a motor 524 arranged on the bearing block 523, a slide rod 525 slidably arranged in the bearing block 523, a suction disc frame 526 arranged on the other end of the slide rod 525, a plurality of vacuum suction discs 521 arranged on the suction disc frame 526, a connecting block 527 fixedly arranged on the side of the slide rod 525, a rack gear 528 arranged on the connecting block 527, and a gear 529 arranged on the output shaft of the motor 524 and engaged with the rack gear 528.

[0032] A linear bearing 29 is arranged on the bearing frame 21, and the poking rod 32 is arranged through the linear bearing 29.

[0033] The specific working process of the utility model is as follows:

[0034] In use, firstly, the bag 6 is grabbed and fixed, specifically, the motor 522 of the bag grabbing unit 52 is started, the motor 522 drives the bearing block 523 to rotate, the bearing block 523 drives the connecting block 527 and the slide rod 525 to rotate, so that the suction disc frame 526 on the slide rod 525 drives the vacuum suction discs 521 to rotate to the position of storing the bag 6, then the motor 524 is started, the motor 524 drives the connecting block 527 along with the slide rod 525 to slide along the bearing block 523 through the engagement of the rack gear 528 and the gear 529, so that the slide rod 525 drives the vacuum suction discs 521 on the suction disc frame 526 to extend, the vacuum suction discs 521 are started to suck one side of the bag 6, then the vacuum suction discs 521 on the suction disc frame 526 are retracted through the motor 524, the motor 522 is started in reverse, so that the vacuum suction discs 521 rotate towards the direction of the vacuum suction disc 512, after the motor 524 drives the vacuum suction discs 521 to extend, the vacuum suction disc 512 is started to suck and fix the other side of the bag 6, then the vacuum suction discs 521 are retracted to separate the two sides of the bag 6, so that the bag 6 is opened to an opening, and the bag 6 is grabbed and fixed.

[0035] The motor one 27 drives the carrier frame one 21 to move downward along the slide rail 1 through the meshing of the gear one 28 and the rack one 26, so that the bag opening clamps 22 in the parallel state slowly insert into the packaging bag 6, and the motor one 27 stops when the bag opening clamps 22 reach the set position; then the motor two 37 is started, and the poking rod 32 on the carrier frame one is driven to move downward through the synchronous belt 36, the poking rod 32 drives the poking block 33 to descend, and the poking block 33 moves downward to the between the two bag opening clamps 22 after passing through the chute 4, and the bag opening clamps 22 are expanded to open the packaging bag 6, and then the motor two 37 stops. In order to make the contact friction between the poking block 33 and the bag opening clamps 22 smaller, the two sides of the poking block 33 can also be provided with rotating rollers 331 in contact with the bag opening clamps 22, so that the poking block 33 opens the bag opening clamps 22 more smoothly.

[0036] After the bag opening clamps 22 are opened by the poking block 33, the bag opening assembly 2 continues to descend until the supporting arm 24 contacts the roller 511 on the supporting frame 51, and the supporting arm 24 drives the bag opening clamps 22 to further expand through the connecting rod 23. When the bag opening assembly 2 descends to the set position, the bag opening clamps 22 are completely opened, and then the motor one 27 is started to drive the poking block 33 to rise and reset, completing the entire bag opening operation of the packaging bag 6, and then the bag opening assembly 2 rises, and the reset spring 25 drives the bag opening clamps 22 to reset and parallel.

[0037] The packaging bag 6 is opened and fixed by the vacuum suction cup one 512 and the vacuum suction cup two 521 of the suction cup assembly 5, the bag opening clamps 22 in the parallel state of the bag opening assembly 2 are inserted into the packaging bag 6 through the motor one 27, the combination of the bag opening clamps 22 and the packaging bag 6 is completed, and the poking block 33 of the poking assembly 3 is driven to descend by the motor two 37 to pre-open the packaging bag 6 expanded by the bag opening clamps 22. It should be noted that the operation of the bag opening clamps 22 descending and inserting into the packaging bag 6 and the operation of the poking block 33 expanding the bag opening clamps 22 can be operated synchronously or sequentially, and both can achieve the effect of pre-opening the packaging bag 6 by expanding the packaging bag 6 through the poking block 33. The height of the bag opening clamps 22 and the poking block 33 can be adjusted, so that the bag opening mechanism can smoothly open packaging bags 6 of different lengths, and the bag opening mechanism has strong applicability and versatility to packaging bags 6 of different lengths, high bag opening quality, and can realize opening of packaging bags 6 of 60mm-180mm (common specifications on the market). The mechanical structure is simple, without complex operation and parameter adjustment, and has stronger versatility to different packaging bags 6.

[0038] According to different specifications of the packaging bag 6, the bag opening assembly 2 descends to a set height, so that the supporting arm 24 contacts the roller 511 to expand the bag opening clamps 22 to a specific angle. The bag opening assembly 2 has strong adaptability to packaging bags 6 of different sizes.

[0039] Through the setting of the reset spring 25, the convergence reset of the bag opening clamp 22 is ensured, through the setting of the roller 511, the friction force with the supporting arm 24 is reduced, through the setting of the rotating roller 331, the friction force between the material poking block 33 and the bag opening clamp 22 is reduced, so that the expansion of the bag opening clamp 22 by the material poking block 33 is more smooth, and then the operation of the bag opening mechanism is more stable and reliable.

[0040] The technical features not described in the utility model can be realized by or using the prior art, and will not be described here again, of course, the above description is not a limitation of the utility model, the utility model is also not limited to the above examples, the changes, modifications, additions or replacements made by the ordinary skilled in the art within the essential scope of the utility model should also belong to the protection scope of the utility model.

Claims

1. A novel universal bag opening mechanism for packaging machines, comprising a slide rail (1) arranged vertically on the frame of the packaging machine, characterized in that, The bag opening device further comprises a bag opening assembly (2) and a material pushing assembly (3) which are respectively slidably arranged on the slide rail (1), the bag opening assembly (2) comprises a bearing frame I (21) which is slidably arranged on the slide rail (1), and two bag opening clamps (22) which are oppositely swingably arranged on the bearing frame I (21), the material pushing assembly (3) comprises a bearing frame II (31) which is slidably arranged on the slide rail (1), a material pushing rod (32) which is connected to the bearing frame II (31) at one end, and a material pushing block (33) which is connected to the other end of the material pushing rod (32), the bearing frame I (21) is provided with a material groove (4), the material pushing block (33) penetrates through the material groove (4) and is respectively and separably abutted with the side portions of the two bag opening clamps (22), a suction disc assembly (5) for opening a packaging bag (6) is arranged below the bag opening assembly (2), and the suction disc assembly (5) is connected to the packaging frame.

2. The novel opening bag mechanism for a packaging machine in general according to claim 1, characterized by the fact that, The side portion of the bag opening clamp (22) is fixedly provided with a connecting rod (23), the bag opening clamp (22) is swingably arranged on the bearing frame I (21) through the connecting rod (23), the end portion of the connecting rod (23) is provided with a supporting arm (24), the suction disc assembly (5) is provided with a roller (511), and the supporting arm (24) is separably abutted with the side portion of the roller (511).

3. The novel opening bag mechanism for a packaging machine in general according to claim 2, characterized by the fact that, One end of the bag opening clamp (22) is a free end, and the other end of the bag opening clamp (22) is provided with a reset spring (25), one end of the reset spring (25) is connected to the bearing frame I (21).

4. The novel opening bag mechanism for a packaging machine in general according to claim 2, characterized by the fact that, The suction disc assembly (5) comprises a supporting frame (51) which is fixedly arranged on the packaging frame, a plurality of vacuum suction discs I (512) which are arranged on the supporting frame (51), and a bag grabbing unit (52) which is movably arranged on the packaging frame and is used for grabbing the packaging bag (6), the bag grabbing unit (52) comprises vacuum suction discs II (521) which are used for sucking the packaging bag (6), and the roller (511) is arranged on the supporting frame (51).

5. The novel opening bag mechanism for a packaging machine in general according to claim 1, characterized by the fact that, A rack I (26) is vertically arranged on the bearing frame I (21), a motor I (27) is fixedly arranged on the packaging frame, and an output shaft of the motor I (27) is provided with a gear I (28) which is engaged with the rack I (26).

6. The novel opening bag mechanism for a packaging machine in general according to claim 1, characterized by the fact that, A vertical support (11) is arranged on the packaging frame, the slide rail (1) is arranged on the vertical support (11), a sliding block which is slidably connected with the slide rail (1) is arranged on the bearing frame II (31), the vertical support (11) is rotatably provided with a synchronous wheel I (34) and a synchronous wheel II (35), respectively, a synchronous belt (36) is tensioned between the synchronous wheel I (34) and the synchronous wheel II (35), the synchronous belt (36) is connected with the bearing frame II (31), a motor II (37) is arranged on the vertical support (11), and an output shaft of the motor II (37) is connected with the synchronous wheel I (34).

7. The novel opening bag mechanism for a packaging machine in general according to claim 4, characterized by the fact that, The bag grabbing unit (52) further comprises a motor three (522) fixedly arranged on the packaging frame, a bearing block (523) connected with a rotating shaft of the motor three (522), a motor four (524) arranged on the bearing block (523), a sliding rod (525) with one end slidingly arranged in the bearing block (523), a suction disc rack (526) arranged on the other end of the sliding rod (525), a plurality of the vacuum suction disc two (521) arranged on the suction disc rack (526), a connecting block (527) fixedly arranged on a side of the sliding rod (525), a rack two (528) arranged on the connecting block (527), a gear two (529) arranged on an output shaft of the motor four (524), and the gear two (529) is engaged with the rack two (528).

8. The novel opening bag mechanism for a packaging machine in general according to claim 1, characterized by the fact that, The bearing block one (21) is provided with a linear bearing (29), and the material pushing rod (32) is arranged through the linear bearing (29).

Images