CN113978853A - Wrapping bag easily tears limit forming mechanism - Google Patents
Wrapping bag easily tears limit forming mechanism Download PDFInfo
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- CN113978853A CN113978853A CN202111438256.7A CN202111438256A CN113978853A CN 113978853 A CN113978853 A CN 113978853A CN 202111438256 A CN202111438256 A CN 202111438256A CN 113978853 A CN113978853 A CN 113978853A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 40
- 238000003825 pressing Methods 0.000 claims abstract description 82
- 238000004806 packaging method and process Methods 0.000 claims abstract description 37
- 238000005520 cutting process Methods 0.000 claims abstract description 29
- 230000006835 compression Effects 0.000 claims description 32
- 238000007906 compression Methods 0.000 claims description 32
- 230000009471 action Effects 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 238000009966 trimming Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 description 27
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 230000006872 improvement Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
- B65B61/182—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying tear-strips or tear-tapes
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- Engineering & Computer Science (AREA)
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Abstract
The invention relates to a packaging bag easy-tearing edge forming mechanism which is used for forming a saw-tooth easy-tearing edge at the feeding end of a packaging bag which is subjected to filling operation. The edge pressing unit and the edge cutting unit are borne by the mounting frame and are used for sequentially compressing the feeding end of the packaging bag and cutting the zigzag easy-tearing edge. The power unit is also borne by the mounting frame to provide power support for the edge pressing unit and the edge cutting unit together. Therefore, on one hand, the difficulty and the cost of implementation and manufacture are effectively reduced, and the market competitiveness is further improved; on the other hand, the space occupied by a single power unit is relatively limited, so that the space design difficulty of the easy-to-tear edge forming mechanism is greatly reduced, and the realization of a miniaturized design target is facilitated.
Description
Technical Field
The invention relates to the technical field of manufacturing of packaging lines for particulate matters or powder matters, in particular to a packaging bag easy-edge-tearing forming mechanism.
Background
For improved accessibility and possibly extended shelf life, it is desirable to perform packaging operations on the granules or powders (e.g., moisture sensitive, also oxidized food or chemical raw materials) that are packed into self-sealing zipped bags (as shown in figure 1). Generally, a serrated easy-tear edge is formed at the sealed end of the zipped bag. In practical use, a user firstly tears the self-sealing zipper bag conveniently through the serrated easy-tearing edge, then tears the zipper open, and finally takes out the material conveniently and quickly. When the material taking operation is finished and the materials are remained, the user can snap the clip chain in place again for later use.
In actual production, after the zipper bag is completely sealed, a serrated easy-to-tear edge is formed on the zipper bag by using an easy-to-tear edge forming mechanism. The easy-tearing edge forming mechanism mainly comprises an edge pressing unit and an edge trimming unit. The edge pressing unit firstly acts to compress the sealing end of the self-sealing zipper bag, and then the edge cutting unit punctures a serrated easy-to-tear edge at the sealing end of the self-sealing zipper bag. In the prior art, the edge pressing unit and the edge cutting unit are respectively and independently driven, namely, the edge pressing unit is provided with a special power part, and the edge cutting unit is additionally provided with a special power part. The existing easy-tearing edge forming mechanism is extremely complex in design structure, on one hand, the manufacturing and implementation difficulty is high, so that the factory price is high or low, and the market competitiveness is seriously insufficient; on the other hand, the space layout of two sets of power parts needs to be considered simultaneously in the design, which is not beneficial to realizing the miniaturization design target. Thus, a skilled person is urgently needed to solve the above technical problems.
Disclosure of Invention
Therefore, in view of the above-mentioned problems and drawbacks, the present invention provides a method for forming a tear-off edge of a packaging bag, which comprises collecting relevant information, evaluating and considering the information, and performing experiments and modifications by a skilled person engaged in the industry.
In order to solve the technical problem, the invention relates to a packaging bag easy-to-tear edge forming mechanism which is used for forming a zigzag easy-to-tear edge at a feeding end of a packaging bag which is subjected to filling operation. The edge pressing unit and the edge cutting unit are borne by the mounting frame and are used for sequentially compressing the feeding end of the packaging bag and cutting the zigzag easy-tearing edge. The power unit is also borne by the mounting frame to provide power support for the edge pressing unit and the edge cutting unit together.
As a further improvement of the technical scheme of the invention, the edge pressing unit comprises a first pressing block and a second pressing block. The first pressing block and the second pressing block simultaneously execute the displacement movement in the opposite direction/back direction under the driving force of the power unit so as to realize/release the compression of the feeding end of the packaging bag. The edge cutting unit comprises a cutter and a push rod component. A strip-shaped accommodating groove is formed in the first pressing block and used for placing a cutter. And a strip-shaped avoiding groove which is arranged opposite to the strip-shaped accommodating groove and provides a movement space for the cutter is formed in the second pressing block. The cutter is pushed out of the strip-shaped avoiding groove under the action of the push broach rod component so as to puncture the feeding end of the packaging bag to form a zigzag easy-tearing edge. The push rod component is powered and supported by the power unit.
As a further improvement of the technical scheme of the invention, the mounting frame comprises a first lateral supporting assembly, a second lateral supporting assembly and a sliding rod assembly. The sliding rod assembly is detachably fixed between the first lateral supporting assembly and the second lateral supporting assembly and is composed of an internal sliding rod and an external sliding rod. The power unit is composed of a first power subunit and a second power subunit. The first power subunit comprises a first linear motion element, a first sliding plate, a second sliding plate, a first sliding sleeve component, a second sliding sleeve component and a compression spring component. The first sliding plate performs directional sliding movement along the sliding rod component under the action of the first sliding sleeve component. The first sliding sleeve component is composed of a first built-in sliding sleeve and a first external sliding sleeve. The first built-in sliding sleeve and the first external sliding sleeve are embedded in the first sliding plate and are respectively sleeved on the built-in sliding rod and the external sliding rod in a one-to-one correspondence manner. The second sliding plate is arranged right behind the first sliding plate in parallel, and performs directional sliding movement along the sliding rod assembly under the action of the second sliding sleeve assembly. The second sliding sleeve component consists of a second built-in sliding sleeve and a second external sliding sleeve. The second built-in sliding sleeve and the second external sliding sleeve are embedded in the second sliding plate and are respectively sleeved on the built-in sliding rod and the external sliding rod in a one-to-one correspondence manner. The first pressing block is detachably fixed on the first sliding plate. The push-type broach rod component consists of an internal push-type broach rod and an external push-type broach rod. The built-in cutter pushing rod and the external cutter pushing rod are respectively hinged to the inner side and the outer side of the cutter in a one-to-one correspondence mode and cooperatively act to push out or drag the cutter from the strip-shaped accommodating groove. The built-in push rod and the external push rod are embedded and fixed on the second sliding plate and can freely pass through the first sliding plate. The compression spring assembly is composed of an internal compression spring and an external compression spring. The built-in compression spring is sleeved on the built-in sliding rod and is elastically compressed between the first sliding plate and the second sliding plate all the time. The external compression spring is sleeved on the external sliding rod and is also elastically compressed between the first sliding plate and the second sliding plate all the time. The first linear motion member is adapted to apply a pulling force to the second skid plate and is removably secured to the first lateral support assembly. The second power subunit comprises a second linear motion element, a third sliding plate and a third sliding sleeve component. The third sliding plate performs directional sliding movement along the sliding rod component under the action of the third sliding sleeve component. The third sliding sleeve component consists of a third built-in sliding sleeve and a third external sliding sleeve. The third built-in sliding sleeve and the third external sliding sleeve are embedded in the third sliding plate and are respectively sleeved on the built-in sliding rod and the external sliding rod in a one-to-one correspondence manner. The second pressing block is detachably fixed on the third sliding plate. The second linear motion member is adapted to apply a pulling force to the third skid plate and is removably secured to the second lateral support assembly.
As a further improvement of the technical scheme of the invention, the edge pressing unit also comprises a first elastic rubber pad and a second elastic rubber pad. The first elastic rubber pad is attached to the working surface of the first pressing block and is divided by the strip-shaped accommodating groove. The second elastic rubber pad is attached to the working surface of the second pressing block and is divided by the strip-shaped avoiding groove.
As a further improvement of the technical scheme of the invention, the first linear motion element and the second linear motion element are both cylinders, hydraulic cylinders or linear motors.
As a further improvement of the technical scheme of the invention, the mounting frame is detachably fixed on the mounting substrate by the first bolt component and the second bolt component. A first mounting through hole matched with the first bolt component is formed in the first lateral supporting component. And a second mounting through hole matched with the second bolt component is formed in the second lateral supporting component.
As a further improvement of the technical solution of the present invention, the first mounting through-hole and the second mounting through-hole are preferably strip-shaped holes extending in the height direction.
As a further improvement of the technical scheme of the invention, the easy-to-tear edge forming mechanism of the packaging bag further comprises an auxiliary top supporting unit. The auxiliary jacking unit is used for providing jacking force support for the mounting frame and consists of a first auxiliary jacking subunit and a second auxiliary jacking subunit. The first auxiliary jacking subunit is matched with the first lateral supporting component for application and comprises a first supporting seat, a first bolt and a first locking nut component. The first supporting seat is fixed on the mounting substrate. The first bolt is screwed on the first support seat, and the free end of the first bolt is just corresponding to the first lateral support component. The first lock nut assembly is composed of a first upper lock nut and a first lower lock nut. The first upper locking nut and the first lower locking nut are screwed on the first bolt and cooperate with each other to lock the axial displacement movement of the first bolt. The second auxiliary supporting top subunit is matched with the second lateral supporting component for application, and comprises a second supporting seat, a second bolt and a second locking nut component. The second support seat is fixed on the mounting substrate. The second bolt is screwed on the second supporting seat, and the free end of the second bolt is just corresponding to the second lateral supporting component. The second lock nut assembly is composed of a second upper lock nut and a second lower lock nut. The second upper locking nut and the second lower locking nut are screwed on the second bolt and cooperate with each other to lock the axial displacement movement of the second bolt.
Compared with the packaging bag easy-edge-tearing forming mechanism with the traditional design structure, in the technical scheme disclosed by the invention, the edge pressing unit and the edge cutting unit share the same power unit, namely, in the actual operation, according to the specific process, the power unit can be used for driving the edge pressing unit in a certain time period and can be used for driving the edge cutting unit in another time period, so that good bedding is provided for simplifying the design structure of the easy-edge-tearing forming mechanism. Therefore, on one hand, the manufacturing difficulty and the manufacturing cost are effectively reduced, the factory price is reduced to a certain extent, and further the market competitiveness is improved; on the other hand, the space occupied by a single power unit is relatively limited, so that the space design difficulty of the easy-to-tear edge forming mechanism is greatly reduced, and the realization of a miniaturized design target is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Figure 1 is a schematic structural view of a self-sealing zipper bag.
Fig. 2 is a schematic perspective view of an easy-tearing edge forming mechanism of the packaging bag of the present invention.
Fig. 3 is a front view of fig. 2.
Fig. 4 is a schematic perspective view of the easy-to-tear-edge forming mechanism of the present invention (with the mounting substrate, the first bolt assembly, the second bolt assembly and the auxiliary supporting unit hidden).
Fig. 5 is a top view of fig. 4.
Fig. 6 is a schematic perspective view of a mounting rack in the easy-tearing-edge forming mechanism of the packaging bag of the present invention.
Fig. 7 is a schematic perspective view of a first pressing block in the easy-edge-tearing forming mechanism of the packaging bag of the present invention.
Fig. 8 is a schematic perspective view of a second pressing block in the easy-to-tear-edge forming mechanism of the packaging bag of the present invention.
Fig. 9 is a schematic perspective view of an auxiliary top supporting unit in the easy-tearing-edge forming mechanism of the packaging bag of the present invention.
1-a mounting substrate; 2-a mounting rack; 21-a first lateral support assembly; 211 — a first mounting through hole; 22-a second lateral support assembly; 221-a second mounting through hole; 23-a glide rod assembly; 231-built-in slide bar; 232-external sliding rod; 3-a beading unit; 31-a first abutment block; 311-strip-shaped accommodating grooves; 32-a second abutment block; 321-strip avoiding grooves; 33-a first elastomeric pad; 34-a second elastomeric pad; 4-a trimming unit; 41-a cutter; 42-a push-broach bar assembly; 421-built-in push rod; 422-external pushing bar; 5-a power unit; 51-a first power sub-unit; 511-a first cylinder; 512-a first shifting board; 513-a second glide plate; 514-a first slip sleeve assembly; 5141-first built-in sliding sleeve; 5142-a first external sliding sleeve; 515-a second slip sleeve assembly; 5151-a second built-in sliding sleeve; 5152-second external sliding sleeve; 516-a compression spring assembly; 5161-built-in compression spring; 5162-external compression spring; 52-a second power sub-unit; 521-a second cylinder; 522-a third shifting board; 523-a third slipping sleeve assembly; 5231-a third built-in sliding sleeve; 5232-a third external sliding sleeve; 6-a first bolt assembly; 7-a second bolt assembly; 8-an auxiliary jacking unit; 81-a first auxiliary jacking subunit; 811-first support; 812-a first bolt; 813-a first lock nut assembly; 8131-a first upper lock nut; 8132-a first down lock nut; 82-a second auxiliary jacking subunit; 821-a second support seat; 822-a second bolt; 823-second lock nut component; 8231-second upper lock nut; 8232-second down lock nut.
Detailed Description
In the description of the present invention, it is to be understood that the terms "front", "rear", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The present invention will be described in further detail with reference to the following embodiments, and fig. 2 and 3 are schematic perspective views and front views of the easy-tearing-edge forming mechanism for bags of the present invention, which can be used in conjunction with a filling line for filling granules or powder to form a zigzag easy-tearing edge at the feeding end of a self-sealing zipper bag that has been filled. The easy-edge-tearing forming mechanism for the packaging bag mainly comprises a mounting base plate 1, a mounting frame 2, an edge pressing unit 3, an edge cutting unit 4, a power unit 5 and the like. Wherein the mounting frame 2 is detachably fixed to a sidewall of the mounting substrate 1, and serves to simultaneously bear the blankholder unit 3, the trimming unit 4, and the power unit 5. The edge pressing unit 3 and the edge cutting unit 4 sequentially realize the operations of pressing and cutting the zigzag easy-tearing edge at the feed end of the self-sealing zipper bag, and the power unit 5 consists of a first power subunit 51 and a second power subunit 52. In actual operation, the first power sub-unit 51 and the second power sub-unit 52 cooperate to collectively provide power support for the binder unit 3 and the trim unit 4 (as shown in FIG. 4).
According to the specific process, the power unit 5 can be used for driving the edge pressing unit 3 in a certain time period and can be used for driving the edge cutting unit 4 in another time period, so that good bedding is provided for simplifying the design structure of the easy-edge-tearing forming mechanism. By adopting the technical scheme for setting, on one hand, the manufacturing difficulty and the manufacturing cost are effectively reduced, the delivery price is reduced to a certain extent, and further the market competitiveness is improved; on the other hand, the space occupied by a single power unit is relatively limited, so that the space design difficulty of the easy-to-tear edge forming mechanism is greatly reduced, and the realization of a miniaturized design target is facilitated.
As a further refinement of the structure of the above-described easy-edge-tearing mechanism for packaging bags, as shown in fig. 4 and 5, the edge pressing unit 3 includes a first pressing block 31 and a second pressing block 32. The first pressing block 31 and the second pressing block 32 perform opposite displacement movement under the driving force of the first power subunit 51 and the second power subunit 52 respectively so as to realize the pressing of the feeding end of the packaging bag. After the formation of the easy-to-tear edge on the self-sealing zipper bag is completed, the first power subunit 51 and the second power subunit 52 are started again to drive the first pressing block 31 and the second pressing block 32 to perform back-to-back displacement movement, so as to release the compression of the self-sealing zipper bag. Then, the self-sealing zipper bags fall to a conveying line under the action of gravity and are finally conveyed to a boxing station.
As can also be seen in fig. 4 and 5, the trimming unit 4 comprises a cutter 41 and a pusher bar assembly 42. A strip-shaped receiving groove 311 is formed in the first pressing block 31 for receiving the cutter 41. A strip-shaped escape groove 321 (shown in fig. 7 and 8) is formed in the second presser block 32 so as to oppose the strip-shaped accommodation groove 311 and provide a movement space for the cutter blade 41. The cutter 41 is pushed out of the strip-shaped avoiding groove 321 under the action of the push-out knife rod assembly 42 so as to puncture the feeding end of the self-sealing zipper bag to form a sawtooth-shaped easy-tearing edge. The push-bar assembly 42 is directly powered by the first power sub-unit 51.
As can be seen from the above description, the easy-to-tear edge forming mechanism of the packaging bag has a very simple and reasonable design mechanism, which is embodied in that: not only the power part 5 realizes the stable and durable driving of the edge pressing unit 3 and the edge cutting unit 4, but also the edge pressing unit 3 and the edge cutting unit 4 are arranged in a staggered manner, and the movement tracks of the first power subunit 51 and the second power subunit 52 are always kept oriented under the cooperative driving of the two power subunits, so that the phenomenon of rigid collision between the edge pressing unit 3 and the edge cutting unit 4 in the running process is avoided.
As is known, the mounting frame 2 can take various designs to carry out the burdens on the upsetting unit 3, the trimming unit 4 and the power unit 5, however, an embodiment is proposed herein that is simple in design, easy to implement and subsequently facilitates the dismantling operations of the parts, as follows: as shown in fig. 6, the mounting bracket 2 is mainly composed of a first lateral support assembly 21, a second lateral support assembly 22, and a sliding rod assembly 23. The sliding rod assembly 23 is detachably fixed between the first lateral support assembly 21 and the second lateral support assembly 22, and is composed of an internal sliding rod 231 and an external sliding rod 232.
As shown in fig. 4 and 5, the first power sub-unit 51 includes a first cylinder 511, a first sliding plate 512, a second sliding plate 513, a first sliding sleeve assembly 514, a second sliding sleeve assembly 515, and a compression spring assembly 516. The first glide plate 512 performs a directional gliding motion along the glide rod assembly 23 under the action of the first glide sleeve assembly 514. The first sliding sleeve assembly 514 is composed of a first inner sliding sleeve 5141 and a first outer sliding sleeve 5142. The first internal sliding sleeve 5141 and the first external sliding sleeve 5142 are embedded in the first sliding plate 512, and are respectively sleeved on the internal sliding rod 231 and the external sliding rod 232 in a one-to-one correspondence manner. The second sliding plate 513 is arranged in parallel directly behind the first sliding plate 512, and performs directional sliding motion along the sliding rod assembly 23 by the second sliding sleeve assembly 514. The second sliding sleeve assembly 515 is composed of a second inner sliding sleeve 5151 and a second outer sliding sleeve 5152. The second internal sliding sleeve 5151 and the second external sliding sleeve 5152 are both embedded in the second sliding plate 513 and are respectively sleeved on the internal sliding rod 231 and the external sliding rod 232 in a one-to-one correspondence manner. The first pressing block 31 is detachably fixed on the first sliding plate 512. The push rod assembly 42 is composed of an inner push rod 421 and an outer push rod 422. The internal pushing rod 421 and the external pushing rod 422 are respectively hinged to the inner side and the outer side of the cutting knife 41 in a one-to-one correspondence manner, and cooperatively push out or pull in the cutting knife 41 from the strip-shaped accommodating groove 311. The built-in pusher bar 421 and the external pusher bar 422 are embedded and fixed on the second sliding plate 513, and can freely pass through the first sliding plate 512. The compression spring assembly 516 is comprised of an inner compression spring 5161 and an outer compression spring 5162. The built-in compression spring 5161 is sleeved on the built-in sliding rod 231 and is always elastically compressed between the first sliding plate 512 and the second sliding plate 513. The external compression spring 5162 is sleeved on the external sliding rod 232 and is also elastically compressed between the first sliding plate 512 and the second sliding plate 513. The first cylinder is used to apply a dragging force to the second sliding plate 513, which is detachably fixed to the first lateral support assembly 21. The second power sub-unit 52 is mainly composed of the second cylinder 521, the third sliding plate 522, the third sliding sleeve assembly 523, and so on. The third glide plate 522 performs a directional gliding movement along the glide rod assembly 23 under the action of the third glide sleeve assembly 523. The third sliding sleeve component 523 is composed of a third inner sliding sleeve 5231 and a third outer sliding sleeve 5232. The third internal sliding sleeve 5231 and the third external sliding sleeve 5232 are embedded in the third sliding plate 522, and are respectively sleeved on the internal sliding rod 231 and the external sliding rod 232 in a one-to-one correspondence manner. The second presser block 32 is detachably fixed to the third slide plate 522. The second cylinder 521 is used to apply a dragging force to the third slide plate 522, which is detachably fixed to the second lateral support member 22.
In a filling workshop, when the self-sealing zipper bag is filled with particles or powder, the self-sealing zipper bag is conveyed to an easy-tearing edge forming station. Firstly, the edge pressing unit 3 is started, the first pressing block 31 and the second pressing block 32 perform opposite displacement motion under the driving force of the first air cylinder 511 and the second air cylinder 521 respectively to press the feeding end of the packaging bag, in the process, the internal compression spring 5161 and the external compression spring 5162 store a large amount of elastic potential energy due to the pressure effect, then the first air cylinder 511 continues to act, and the second air cylinder 521 is kept in a pressure maintaining state to push the cutter 41 out of the strip-shaped accommodating groove 311 to pierce the feeding end of the self-sealing zipper bag, so that the serrated easy-to-tear edge is formed; then, the first cylinder 511 and the second cylinder 521 act in opposite directions, and at the same time, the elastic potential energy stored in the internal compression spring 5161 and the external compression spring 5162 is slowly released, in the process, the cutter 41 is separated from the self-sealing zipper bag, and retracts to the strip-shaped accommodating groove 31 to reset under the action of dragging force, and then the first pressing block 31 and the second pressing block 32 are separated from the self-sealing zipper bag to release the clamping of the self-sealing zipper bag.
It should be noted here that, on the premise of not increasing the design difficulty, the addition of the internal compression spring 5161 and the external compression spring 5162 not only ensures that the edge pressing unit 3 and the edge cutting unit 4 have accurate sequence of actions when being acted by the driving force, so as to meet the requirements of the process, ensure that the edge pressing operation and the edge cutting operation are smoothly performed, but also ensure that the edge pressing unit 3 and the edge cutting unit 4 are always acted by the elastic force during the operation, and ensure that both have good operation stability.
In addition, the energy input of the first cylinder 511 and the second cylinder 521 can be reduced to a certain extent due to the additional arrangement of the internal compression spring 5161 and the external compression spring 5162, and the realization of the design target of energy conservation and emission reduction is facilitated.
In a small-batch trial experiment stage, after a period of operation, the first pressing block 31 is difficult to completely abut against the second pressing block 32, so that the self-sealing zipper bag is difficult to stably clamp, and the reason for this is that after long-term use, the first sliding sleeve assembly 514 and the third sliding sleeve assembly 523 are inevitably worn relative to the sliding rod assembly 23, so that the parallel relationship between the first pressing block 31 and the second pressing block 32 is difficult to maintain, that is, the first pressing block 31 and the second pressing block 32 have a certain included angle. In view of this, as a further optimization of the structure of the above-mentioned easy-edge-tearing forming mechanism for the packaging bag, the edge pressing unit 3 is further provided with a first elastic rubber pad 33 and a second elastic rubber pad 34 on the basis of the first pressing block 31 and the second pressing block 32. The first elastic rubber pad 33 is attached to the working surface of the first pressing block 31 and is divided by the strip-shaped receiving groove 311. The second resilient rubber pad 34 is attached to the working surface of the second pressing block 32 and is divided by the strip-shaped relief groove 321 (as shown in fig. 2, 4 and 5). When the edge pressing unit 3 performs the pressing and clamping operation on the self-sealing zipper bag in advance, the first air cylinder 511 and the second air cylinder 521 are started simultaneously, the first pressing block 31 and the second pressing block 32 move in a displacement manner relative to the self-sealing zipper bag under the action of thrust, and in the process, the first elastic rubber pad 33 and the second elastic rubber pad 34 are firstly in contact with the self-sealing zipper bag. Then, in the process of compressing the self-sealing zipper bag, the first elastic rubber pad 33 and the second elastic rubber pad 34 are adaptively deformed due to the action of the squeezing force and completely contact with two sides of the self-sealing zipper bag, so that the self-sealing zipper bag is stably and reliably clamped.
As shown in fig. 2 and 3, the mounting frame 2 is detachably fixed on the mounting substrate 1 by the first bolt assembly 6 and the second bolt assembly 7. The first lateral supporting component 21 is provided with a first mounting through hole 211 matched with the first bolt component 6. A second mounting through hole 221 adapted to the second bolt assembly 7 is formed on the second lateral support assembly 22. When waiting that the shaping easily tears the proclaim oneself clip chain bag model number of limit and changing, only need unscrew first bolt subassembly 6, second bolt subassembly 7, then pull down mounting bracket 2 together with blank pressing unit 3, side cut unit 4, power pack 5 from mounting substrate 1, change again the new money easily tear limit forming mechanism can, whole process is very swift, rapid.
In addition, in practical application, the relative position height of the easy-tearing edge forming mechanism needs to be adjusted according to different length sizes of the self-sealing zipper bags, so that the sawtooth-shaped easy-tearing edge is ensured to have relatively accurate forming precision. In view of this, each of the first mounting through-hole 211 and the second mounting through-hole 221 is preferably a strip-shaped hole extending in the height direction (as shown in fig. 2, 3, and 6). When the relative height position of the easy-to-tear edge forming mechanism needs to be finely adjusted, only the first bolt assembly 6 and the second bolt assembly 7 need to be loosened, then the easy-to-tear edge forming mechanism is dragged along the height direction until the relative position height meets the design requirement, and finally, the first bolt assembly 6 and the second bolt assembly 7 are tightened again.
Finally, it should be noted that, as shown in fig. 2 and 3, an auxiliary jacking unit 8 is additionally provided right below the mounting frame 2. The auxiliary jacking unit 8 is used to provide jacking force support to the mounting frame 2. Therefore, on one hand, the requirements on the connection strength of the first bolt assembly 6 and the second bolt assembly 7 and the flexural strength of the mounting substrate 1 are effectively reduced; on the other hand, after the easy-to-tear edge forming mechanism runs for a period of time, the mounting frame 2, the edge pressing unit 3, the edge cutting unit 4 and the power unit 5 still keep accurate relative height positions, and finally the saw-tooth easy-to-tear edge is guaranteed to have good forming precision.
As shown in fig. 9, the auxiliary jack unit 8 is constituted by a first auxiliary jack subunit 81 and a second auxiliary jack subunit 82. The first auxiliary supporting sub-unit 81 is used in cooperation with the first lateral supporting component 21, and includes a first supporting seat 811, a first bolt 812 and a first locking nut component 813. The first supporting base 811 is fixed to the mounting substrate 1. The first bolt 812 is screwed on the first supporting seat 811, and its free end just corresponds to the first lateral supporting component 21. The first lock nut assembly 813 is comprised of a first upper lock nut 8131 and a first lower lock nut 8132. The first up lock nut 8131 and the first down lock nut 8132 are each threaded onto the first bolt 812 and cooperate to lock the axial displacement movement of the first bolt 812. The second auxiliary jacking sub-unit 82 is adapted to the second lateral supporting assembly 22, and includes a second supporting seat 821, a second bolt 822, and a second locking nut assembly 823. The second support base 821 is fixed to the mounting substrate 1. The second bolt 822 is screwed on the second support seat 821, and its free end corresponds to the second lateral support component 22. The second lock nut assembly 823 is comprised of a second up lock nut 8231 and a second down lock nut 8232. A second upper retaining nut 8231 and a second lower retaining nut 8232 are each threaded onto the second bolt 822 and cooperate to lock the axial displacement movement of the second bolt 822.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A packaging bag easy-tearing edge forming mechanism is used for forming a saw-tooth-shaped easy-tearing edge at a feeding end of a packaging bag which is subjected to filling operation, and is characterized by comprising an installation frame, an edge pressing unit, an edge cutting unit and a power unit; the edge pressing unit and the edge cutting unit are borne by the mounting frame and are used for sequentially realizing the operations of pressing the feeding end of the packaging bag and cutting the zigzag easy-to-tear edge; the power unit is also borne by the mounting frame to jointly provide power support for the edge pressing unit and the trimming unit.
2. The easy-to-tear edge forming mechanism for the packaging bag according to claim 1, wherein the edge pressing unit comprises a first pressing block and a second pressing block; the first pressing block and the second pressing block simultaneously perform opposite/reverse displacement movement under the driving force of the power unit so as to realize/release the compression on the feeding end of the packaging bag; the edge cutting unit comprises a cutter and a push-type cutter rod assembly; a strip-shaped accommodating groove is formed in the first pressing block and used for placing the cutter; a strip-shaped avoiding groove which is arranged opposite to the strip-shaped accommodating groove and provides a movement space for the cutter is formed in the second pressing block; the cutter is pushed out of the strip-shaped avoiding groove under the action of the push-type cutter rod assembly so as to puncture the feeding end of the packaging bag to form a saw-tooth-shaped easy-tearing edge; the push rod assembly is powered and supported by the power unit.
3. The easy-to-tear edge forming mechanism for the packaging bag according to claim 2, wherein the mounting frame comprises a first lateral supporting assembly, a second lateral supporting assembly and a sliding rod assembly; the sliding rod assembly is detachably fixed between the first lateral supporting assembly and the second lateral supporting assembly and consists of an internal sliding rod and an external sliding rod; the power unit consists of a first power subunit and a second power subunit; the first power subunit comprises a first linear motion element, a first sliding plate, a second sliding plate, a first sliding sleeve assembly, a second sliding sleeve assembly and a compression spring assembly; the first sliding plate performs directional sliding motion along the sliding rod assembly under the action of the first sliding sleeve assembly; the first sliding sleeve assembly consists of a first built-in sliding sleeve and a first external sliding sleeve; the first internal sliding sleeve and the first external sliding sleeve are embedded in the first sliding plate and are respectively sleeved on the internal sliding rod and the external sliding rod in a one-to-one correspondence manner; the second sliding plate is arranged right behind the first sliding plate in parallel, and performs directional sliding motion along the sliding rod assembly under the action of the second sliding sleeve assembly; the second sliding sleeve component consists of a second built-in sliding sleeve and a second external sliding sleeve; the second built-in sliding sleeve and the second external sliding sleeve are embedded in the second sliding plate and are respectively sleeved on the built-in sliding rod and the external sliding rod in a one-to-one correspondence manner; the first pressing block is detachably fixed on the first sliding plate; the push rod component consists of an internal push rod and an external push rod; the internal push cutter rods and the external push cutter rods are respectively hinged to the inner side and the outer side of the cutter in a one-to-one correspondence mode and cooperatively act to push or pull the cutter from the strip-shaped accommodating groove; the built-in push rod and the external push rod are embedded and fixed on the second sliding plate and can freely penetrate through the first sliding plate; the compression spring assembly consists of an internal compression spring and an external compression spring; the built-in compression spring is sleeved on the built-in sliding rod and is elastically compressed between the first sliding plate and the second sliding plate all the time; the external compression spring is sleeved on the external sliding rod and is also elastically compressed between the first sliding plate and the second sliding plate all the time; the first linear motion element is used for applying dragging force to the second sliding plate and is detachably fixed on the first lateral support component; the second power subunit comprises a second linear motion element, a third sliding plate and a third sliding sleeve component; the third sliding plate performs directional sliding motion along the sliding rod component under the action of the third sliding sleeve component; the third sliding sleeve component consists of a third built-in sliding sleeve and a third external sliding sleeve; the third internal sliding sleeve and the third external sliding sleeve are embedded in the third sliding plate and are respectively sleeved on the internal sliding rod and the external sliding rod in a one-to-one correspondence manner; the second pressing block is detachably fixed on the third sliding plate; the second linear motion element is used for applying dragging force to the third sliding plate and is detachably fixed on the second lateral support assembly.
4. The easy-to-tear-edge forming mechanism for the packaging bag according to claim 3, wherein the edge pressing unit further comprises a first elastic rubber pad and a second elastic rubber pad; the first elastic rubber pad is attached to the working surface of the first pressing block and is divided by the strip-shaped accommodating groove; the second elastic rubber pad is attached to the working surface of the second pressing block and is divided by the strip-shaped avoiding groove.
5. The easy-to-tear-edge forming mechanism for the packaging bag according to claim 3, wherein the first linear motion element and the second linear motion element are both air cylinders, hydraulic cylinders or linear motors.
6. The easy-tearing-edge forming mechanism for the packaging bag according to any one of claims 3 to 5, wherein the mounting frame is detachably fixed on the mounting base plate by the first bolt component and the second bolt component; a first mounting through hole matched with the first bolt assembly is formed in the first lateral supporting assembly; and a second mounting through hole matched with the second bolt assembly is formed in the second lateral supporting assembly.
7. The easy-to-tear edge forming mechanism for the packaging bag according to claim 6, wherein the first mounting through hole and the second mounting through hole are strip-shaped holes extending along the height direction.
8. The easy-to-tear edge forming mechanism for the packaging bag according to claim 7, further comprising an auxiliary top supporting unit; the auxiliary jacking unit is used for providing jacking force support for the mounting frame and consists of a first auxiliary jacking subunit and a second auxiliary jacking subunit; the first auxiliary jacking subunit is matched with the first lateral supporting component for application and comprises a first supporting seat, a first bolt and a first locking nut component; the first supporting seat is fixed on the mounting substrate; the first bolt is screwed on the first support seat, and the free end of the first bolt is right corresponding to the first lateral support component; the first locking nut component consists of a first upper locking nut and a first lower locking nut; the first upper locking nut and the first lower locking nut are screwed on the first bolt and cooperate with each other to lock the axial displacement motion of the first bolt; the second auxiliary supporting top subunit is matched with the second lateral supporting component for application and comprises a second supporting seat, a second bolt and a second locking nut component; the second supporting seat is fixed on the mounting substrate; the second bolt is screwed on the second supporting seat, and the free end of the second bolt is right corresponding to the second lateral supporting component; the second locking nut assembly consists of a second upper locking nut and a second lower locking nut; the second upper locking nut and the second lower locking nut are screwed on the second bolt and cooperate with each other to lock the axial displacement movement of the second bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111438256.7A CN113978853A (en) | 2021-11-30 | 2021-11-30 | Wrapping bag easily tears limit forming mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111438256.7A CN113978853A (en) | 2021-11-30 | 2021-11-30 | Wrapping bag easily tears limit forming mechanism |
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| CN113978853A true CN113978853A (en) | 2022-01-28 |
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|---|---|---|---|
| CN202111438256.7A Pending CN113978853A (en) | 2021-11-30 | 2021-11-30 | Wrapping bag easily tears limit forming mechanism |
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| US3041806A (en) * | 1960-04-28 | 1962-07-03 | Procter & Gamble | Machine for forming lined packages |
| CN211167720U (en) * | 2019-11-12 | 2020-08-04 | 北京和利康源医疗科技有限公司 | Cutter device with easily torn opening |
| CN112607421A (en) * | 2020-12-30 | 2021-04-06 | 苏州隆士丹自动化技术有限公司 | Feeding tool suitable for glass water joint rubber ring |
| CN214397560U (en) * | 2020-12-01 | 2021-10-15 | 天津正大珍吾堂食品股份有限公司 | Cutting device of packing machine |
| CN214454497U (en) * | 2021-03-09 | 2021-10-22 | 苏州威达智电子科技有限公司 | Touch pad curing line |
| CN214522310U (en) * | 2021-01-25 | 2021-10-29 | 浙江瑞泰包装机械有限公司 | Point-breaking device for continuous rolling bag making machine |
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2021
- 2021-11-30 CN CN202111438256.7A patent/CN113978853A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3041806A (en) * | 1960-04-28 | 1962-07-03 | Procter & Gamble | Machine for forming lined packages |
| CN211167720U (en) * | 2019-11-12 | 2020-08-04 | 北京和利康源医疗科技有限公司 | Cutter device with easily torn opening |
| CN214397560U (en) * | 2020-12-01 | 2021-10-15 | 天津正大珍吾堂食品股份有限公司 | Cutting device of packing machine |
| CN112607421A (en) * | 2020-12-30 | 2021-04-06 | 苏州隆士丹自动化技术有限公司 | Feeding tool suitable for glass water joint rubber ring |
| CN214522310U (en) * | 2021-01-25 | 2021-10-29 | 浙江瑞泰包装机械有限公司 | Point-breaking device for continuous rolling bag making machine |
| CN214454497U (en) * | 2021-03-09 | 2021-10-22 | 苏州威达智电子科技有限公司 | Touch pad curing line |
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Application publication date: 20220128 |
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