CN115158792A - Heat sealing device and heat sealing method for freshness protection package - Google Patents
Heat sealing device and heat sealing method for freshness protection package Download PDFInfo
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- CN115158792A CN115158792A CN202110354560.7A CN202110354560A CN115158792A CN 115158792 A CN115158792 A CN 115158792A CN 202110354560 A CN202110354560 A CN 202110354560A CN 115158792 A CN115158792 A CN 115158792A
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- clamping
- extrusion
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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
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
- B65B51/146—Closing bags
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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
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/32—Cooling, or cooling and pressing, package closures after heat-sealing
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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Abstract
The invention relates to the technical field of bag making, in particular to a heat sealing device and a heat sealing method for a freshness protection package, wherein the heat sealing device for the freshness protection package comprises: the bag clamping device comprises two bag clamping mechanisms, two heat sealing mechanisms and an extrusion part arranged in the heat sealing mechanisms; the bag clamping mechanism is suitable for clamping the bag body; the two heat-sealing mechanisms are oppositely arranged and can slide oppositely and heat-seal the bag body; the extrusion part has elasticity and can slide along the heat sealing mechanism; the two extrusion parts in the two heat sealing mechanisms are arranged in a staggered way; wherein after the two heat-sealing mechanisms are close to each other and are contacted, the two extrusion parts can extend out of the heat-sealing mechanisms and extrude the bag body. Through the heat sealing device of the freshness protection package, materials in the package body are shaken while the package body is folded, so that an arch breaking effect is achieved; after the heat sealing is finished, the two extrusion parts can keep the state of clamping the bag body, and at the moment, the two heat sealing mechanisms retreat and are separated from each other to form a gap so as to accelerate the cooling solidification forming of the seal.
Description
Technical Field
The invention relates to the technical field of bag making, in particular to a heat sealing device and a heat sealing method for a freshness protection package.
Background
General freshness protection package sealing device comprises two parts, and two heat sealing mechanisms that press from both sides bag mechanism 1 and the mirror image setting that the mirror image set up, two heat sealing mechanisms are relative to be set up, and two heat sealing mechanisms can be close to the heat-seal bag body each other, also can keep away from each other after the heat-seal finishes and loosen the bag body, carry the station to heat sealing mechanism after pressing from both sides the bag mechanism and press from both sides the tight bag body, rethread heat sealing mechanism is to the heat-seal of bag body, and such mode has following problem:
1. the bag body is arched when being filled with materials, and the materials cannot be flatly placed in the bag body, so that the materials can be sealed during heat sealing;
2. after the heat sealing is finished, the time for waiting for the seal to solidify is longer, and the heat sealing efficiency is lower.
Disclosure of Invention
The invention aims to provide a heat sealing device and a heat sealing method for a freshness protection package.
In order to solve the technical problem, the invention provides a heat sealing device for a freshness protection package, comprising: the bag clamping device comprises two bag clamping mechanisms arranged in a mirror image manner, two heat sealing mechanisms respectively fixed on the two bag clamping mechanisms, and an extrusion part arranged in the heat sealing mechanisms; and the bag clamping mechanism is suitable for clamping the bag body; the two heat-sealing mechanisms are oppositely arranged and can slide oppositely and heat-seal the bag body; the extrusion part has elasticity and can slide along the heat sealing mechanism; the two extrusion parts in the two heat sealing mechanisms are arranged in a staggered way; after the two heat-sealing mechanisms are mutually closed to be contacted, the two extrusion parts can extend out of the heat-sealing mechanisms and extrude the bag body so as to shake the bag body; after heat sealing is finished, the two heat sealing mechanisms are separated, and the two extrusion parts can keep clamping the bag body.
Specifically, the heat sealing mechanism comprises a heat sealing head and a heat sealing cylinder linked with the heat sealing head, the two heat sealing cylinders can drive the two heat sealing heads to move in opposite directions or in opposite directions, and the heat sealing cylinders are linked with the corresponding extrusion parts; the extending end of the heat sealing head is provided with a sliding groove, the extrusion parts can slide along the sliding groove, the thickness of the sliding groove is equal to the sum of the thicknesses of the two extrusion parts, and the two extrusion parts are respectively attached to the inner top wall and the inner bottom wall of the corresponding sliding groove; after the two heat sealing heads are mutually close to be contacted, the heat sealing air cylinder can push the corresponding extrusion part to extend out of the sliding groove; after the heat sealing is finished, the two heat sealing cylinders drive the two heat sealing heads to separate.
Specifically, the extrusion part comprises an extrusion rod which is connected in the sliding groove in a sliding mode, and an extrusion head which slides at the extending end of the extrusion rod; the extrusion rod is linked with the heat-sealing air cylinder; after the heat-sealing heads are mutually close to be contacted, the heat-sealing air cylinder can push the extrusion heads to extend out of the sliding groove through the extrusion rods, and the two extrusion heads are mutually crossed and extrude the bag body; when the two heat sealing heads are separated after heat sealing is finished, the two extrusion heads keep clamping the bag body and extend out of the corresponding extrusion rods.
Specifically, the extending end of each extrusion head is fixedly connected with a clamping tooth, and the clamping teeth are respectively positioned on the upper end surface and the lower end surface of the two heat sealing heads; wherein when the two heat sealing heads are separated after the heat sealing is finished, the two clamping teeth can be meshed with each other.
Specifically, a limit groove is formed in the extending end of the extrusion rod, and a limit ring is arranged at the opening of the limit groove; the extrusion head is sleeved in the limiting ring to slide, a limiting block is sleeved outside one end of the extrusion head, which is positioned in the limiting groove, and a limiting spring is arranged between the limiting block and the side wall of the limiting groove; the limiting ring can block the extrusion head from sliding out of the limiting groove.
The heat-sealing mechanism further comprises a heat-sealing bracket fixed on the bag clamping mechanism, a heat-sealing push rod fixed at the movable end of the heat-sealing air cylinder and a heat-sealing fixture block fixedly connected to the back of the heat-sealing head; the heat-sealing air cylinder is fixed on the heat-sealing bracket; the back of the heat-sealing fixture block is provided with an open slot suitable for inserting a heat-sealing push rod, and the open slot is communicated with the sliding slot; the end part of the heat-sealing push rod is fixedly connected with a linkage push plate, a telescopic rod is fixedly connected between the linkage push plate and the heat-sealing head, and a telescopic spring is sleeved outside the telescopic rod; the extrusion rod is fixedly connected with the linkage push plate; and after the heat-seal push rod pushes the corresponding heat seal heads to be contacted with the two heat seal heads, the heat-seal push rod pushes the extrusion rod to drive the extrusion heads to stretch out of the sliding groove.
The bag clamping mechanism comprises a bag clamping base, a bag clamping bottom plate, a bag clamping bottom rail and a plurality of bag clamping assemblies, wherein the bag clamping bottom plate slides along the short side of the bag clamping base; the heat-seal bracket is fixed on the bag clamping base; a first bag clamping cylinder is fixedly connected to the bag clamping base, and the movable end of the first bag clamping cylinder is fixedly connected with the bag clamping bottom plate; a second bag clamping cylinder is fixedly connected to the bag clamping bottom plate, and the movable end of the second bag clamping cylinder is fixedly connected with the bag clamping bottom rail; the first bag clamping cylinder can push the corresponding bag clamping bottom plate to slide so as to enable the two bag clamping components to clamp the bag body; the second bag clamping cylinder can push the corresponding bag clamping bottom rail to slide so as to convey the bag body.
The bag clamping assembly comprises a bag clamping mounting block fixed on the bag clamping bottom rail, two bag clamping side plates connected to the bag clamping mounting block in a sliding mode, a first cross rod is fixedly connected to one bag clamping side plate, a second cross rod is connected to the other bag clamping side plate in a rotating mode, and the second cross rod is in threaded connection with the first cross rod; the bag clamping side plate is fixedly connected with a clamping block; wherein the second cross rod is rotated to adjust the distance between two adjacent bag clamping side plates, and the bag body can be clamped by two opposite clamping blocks.
Specifically, a support is erected on the two bag clamping bases, and a material filling hole is formed in the support; the support is fixedly connected with two spreading cylinders, and the movable ends of the two spreading cylinders are respectively and fixedly connected with a spreading connecting rod; the spreading connecting rods penetrate through the filling holes and are respectively positioned on two sides of the clamped bag body; the two opening connecting rods are respectively and fixedly connected with an opening air nozzle, and after the opening air nozzles absorb the bag body, the opening air cylinders can push the corresponding opening air nozzles to slide so as to open the bag body.
On the other hand, the invention also provides a heat-sealing method of the heat-sealing device for the freshness protection package, which comprises the heat-sealing device for the freshness protection package; rotating the second cross rod to adjust the distance between the two bag clamping side plates; the bag clamping bottom plate is pushed to slide by the first bag clamping cylinder so that the bag body is clamped by the two opposite clamping blocks; the second bag clamping cylinder pushes the bag clamping bottom rail to slide so that the clamped bag body slides to a position between the two opening air nozzles; the bag body is absorbed by the opening air tap; the opening air tap is pushed to slide by the opening air cylinder so as to open the bag body; filling materials into the bag body through the material filling hole; then the second bag clamping cylinder slides the opened bag body to a position between the two heat sealing heads; the heat-sealing push rod is pushed to slide by the heat-sealing cylinder so that the two heat-sealing heads clamp the bag body; continuously pushing the heat-sealing push rod to slide through the heat-sealing air cylinder so as to enable the extrusion head to extend out of the sliding groove and extrude the bag body; shaking is generated by the shrinkage of the bag body, so that the materials in the bag body are smooth; heat-sealing the bag body by a heat-sealing head; the heat-sealing push rod is pulled back through the heat-sealing cylinder until the two clamping teeth are meshed, so that the two heat sealing heads are separated; after the seal is cooled and solidified, the heat-seal push rod is continuously pulled back through the heat-seal air cylinder so as to separate the two clamping teeth; and finally, conveying the heat-sealed bag body backwards through a second bag clamping cylinder.
The heat sealing device and the heat sealing method for the freshness protection package have the beneficial effects that in the heat sealing process, after the two heat sealing mechanisms are mutually closed to be in contact, the two extrusion parts extend out of the corresponding heat sealing mechanisms and are crossed, and meanwhile, the bag body is extruded to be folded into a '12579' shape, so that materials in the bag body are shaken while the bag body is folded, the arch breaking effect is further achieved, and no materials exist in the heat sealing position; after the heat sealing is finished, the two extrusion parts can keep the state of clamping the bag body, and at the moment, the two heat sealing mechanisms retreat and are separated from each other to generate a gap so as to accelerate the sealing, cooling, solidifying and forming.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a perspective view of a preferred embodiment of the heat sealing apparatus for freshness packets of the present invention;
FIG. 2 is a perspective view of a preferred embodiment of the heat seal mechanism of the present invention;
FIG. 3 is a schematic view of the construction of a preferred embodiment of the extrusion in the initial state of the heat seal of the present invention;
FIG. 4 is a schematic view of the preferred embodiment of the extrusions in contact with the heat seal of the present invention;
FIG. 5 is a schematic view of the preferred embodiment of the pouch when the extrusion heads of the present invention are crossed;
FIG. 6 is a schematic view of the preferred embodiment of the engagement of the gripping teeth as the bag closure cools in accordance with the present invention;
FIG. 7 is a schematic structural view of a preferred embodiment of the extrusion of the present invention;
FIG. 8 is a perspective view of a preferred embodiment of a clip bag assembly of the present invention;
figure 9 is a perspective view of a preferred embodiment of the pouch of the present invention expanded.
In the figure:
the bag clamping mechanism 1, the bag clamping base 11, the bag clamping base plate 12, the bag clamping bottom rail 13, the bag clamping assembly 14, the bag clamping mounting block 141, the bag clamping side plate 142, the clamping block 143, the first cross bar 144, the second cross bar 145, the knob 146, the first bag clamping cylinder 15 and the second bag clamping cylinder 16;
the heat sealing device comprises a heat sealing mechanism 2, a heat sealing head 21, a sliding groove 211, a heat sealing cylinder 22, a heat sealing bracket 23, a heat sealing push rod 24, a heat sealing fixture block 25, an opening groove 251, a linkage push plate 26, an expansion rod 27 and an expansion spring 28;
a bag body 3;
the extrusion part 4, the extrusion rod 41, the limiting groove 411, the extrusion head 42, the clamping teeth 43, the limiting ring 44, the limiting block 45 and the limiting spring 46;
the support 51, the material filling hole 511, the expanding cylinder 52, the expanding connecting rod 53 and the expanding air nozzle 54.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams each illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention.
General freshness protection package sealing device comprises two parts, two heat sealing machine constructs 2 that two double-layered bag mechanism 1 and mirror image that the mirror image set up, two heat sealing machine constructs 2 and sets up relatively, two heat sealing machine constructs 2 can be close to the heat-seal bag body 3 each other, also can keep away from each other after the heat-seal finishes and loosen bag body 3, carry to the station of heat sealing machine structure 2 after pressing from both sides bag mechanism 1 and pressing from both sides tight bag body 3, rethread heat-seal machine constructs 2 to the heat-seal of bag body 3, following problem exists in such mode: 1. the bag body 3 is arched when being filled with materials, and the materials cannot be flatly placed in the bag body 3, so that the materials can be sealed during heat sealing; 2. after the heat sealing is finished, the time for waiting for the seal to solidify is longer, and the heat sealing efficiency is lower. In order to solve the above problems, the following scheme needs to be designed.
The extrusion part 4 is arranged in the heat sealing mechanism 2, specifically, the extrusion part 4 is arranged at the extending end of the heat sealing mechanism 2, the extrusion part 4 can move towards or away from the heat sealing mechanism 2, and the extrusion part 4 can slide along the heat sealing mechanism 2; the extrusion part 4 has elasticity; the two extrusion parts 4 in the two heat sealing mechanisms 2 are arranged in a staggered manner, namely, no overlapping area exists on the same horizontal plane of the two extrusion parts 4, and the two extrusion parts 4 can be mutually intersected and crossed; in the heat sealing process, after the two heat sealing mechanisms 2 are close to each other and are in contact with each other, the two extrusion parts 4 extend out of the corresponding heat sealing mechanisms 2 and are crossed, and simultaneously the bag body 3 is extruded to enable the bag body 3 to be folded into a shape of '12579', so that materials in the bag body 3 are shaken while the bag body 3 is folded, and further an arch breaking effect is achieved, and no materials exist at the heat sealing positions; after the heat sealing is finished, the two extrusion parts 4 can keep the state of clamping the bag body 3, and at the moment, the two heat sealing mechanisms 2 retreat and are separated from each other to generate a gap so as to accelerate the cooling solidification forming of the seal.
The heat sealing mechanism 2 comprises a heat sealing head 21 and heat sealing cylinders 22 linked with the heat sealing head 21, the heat sealing bag body 3 is heated by electrifying the heat sealing head 21, and the two heat sealing cylinders 22 drive the two heat sealing heads 21 to move oppositely or away from each other so as to clamp or release the bag body 3; the extending end of the heat sealing head 21 is provided with a sliding groove 211, the sliding groove 211 extends from the extending end of the heat sealing head 21 to one end of the heat sealing cylinder 22 in a penetrating manner, and the heating surface of the heat sealing head 211 is split into two small surfaces from one large surface through the arrangement of the sliding groove 211, so that the heat sealing difficulty is reduced, and meanwhile, one seal is changed into two seals, so that the sealing effect of the bag body 3 is improved; the extrusion part 4 can slide along the sliding groove 211, and specifically, the heat-sealing air cylinder 22 is linked with the corresponding extrusion part 4 to realize the sliding of the extrusion part 4; the thickness of the sliding groove 211 is equal to the sum of the thicknesses of the two squeezing parts 4, and the two squeezing parts 4 are respectively attached to the inner top wall and the inner bottom wall of the corresponding sliding groove 211, so that the two squeezing parts 4 can be limited up and down after the two squeezing parts 4 are crossed, the squeezing parts 4 are prevented from extending out of the sliding groove 211 and deviating, the sliding linearity of the squeezing parts 4 is ensured, and the bag body 3 can be folded and shaken; in the heat sealing process, the heat sealing cylinder 22 pushes the corresponding heat sealing heads 21 to slide so that the two heat sealing heads 21 are close to each other and contact with each other, the heat sealing cylinder 22 can push the corresponding extrusion parts 4 to extend out of the sliding grooves 211, and the two extrusion parts 4 can mutually and alternately extrude the bag body 3 after extending out of the sliding grooves 211; after the heat sealing is completed, the two heat-sealing cylinders 22 drive the two heat-sealing heads 21 to separate from each other, so that the heat-sealing heads 21 are separated from the bag body 3, and the sealing part of the bag body 3 is cooled, solidified and formed conveniently.
The structure of the extrusion part 4 is as follows, the extrusion part 4 comprises an extrusion rod 41 connected in the sliding groove 211 in a sliding manner, and an extrusion head 42 sliding on the extending end of the extrusion rod 41, specifically, the extrusion rod 41 can slide along the sliding groove 211, the extrusion head 42 can extend out of the sliding groove 211, and the two extrusion heads 42 are crossed to realize the extrusion of the bag body 3; the extrusion sliding groove 211 of the extrusion head 42 is realized by the linkage of the extrusion rod 41 and the heat-seal air cylinder 22; when in heat sealing, after the heat sealing heads 21 are close to each other and are in contact with each other, the heat sealing cylinder 22 can push the extrusion heads 42 to extend out of the sliding groove 211 through the extrusion rods 41, the two extrusion heads 42 are crossed with each other and extrude the bag body 3 to shake the bag body 3, and at the moment, the two extrusion heads 42 play a role in breaking arches on materials in the bag body 3; when the two heat sealing heads 21 are separated after heat sealing is completed, the two extrusion heads 42 can keep clamping the bag 3, and the extrusion heads 42 extend out of the corresponding extrusion rods 41 due to the retraction of the heat sealing heads 21, so that the seal of the bag 3 is cooled and solidified to be formed, and at the moment, the extrusion heads 42 play a role in clamping the cooling and solidification of the bag 3.
In order to enable the two squeezing heads 42 to keep clamping the pouch 3, the protruding end of each squeezing head 42 is fixedly connected with a clamping tooth 43, and the clamping teeth 43 are respectively located on the upper end surface and the lower end surface of the two heat sealing heads 21, specifically, the left clamping tooth 43 is located on the upper end surface of the right end of the left heat sealing head 21, the right clamping tooth 43 is located on the lower end surface of the left end of the right heat sealing head 21, and the clamping teeth 43 have elasticity, so that when the two clamping teeth 43 approach each other, the clamping teeth 43 can generate deformation by themselves to cross each other; when the two heat-sealing cylinders 2 drive the two heat-sealing heads 21 to be separated after heat sealing is finished, the two clamping teeth 43 can slide to be meshed with each other towards two sides, and when the heat-sealing head 21 continues to slide at the moment, the two clamping teeth 43 can not cross each other but slide out from the corresponding extrusion rods 41, and when the two clamping teeth 43 are not loosened, the clamped bag body 3 can be kept, meanwhile, after the extrusion head slides to the maximum stroke, the clamping teeth 43 can still deform to cross each other, in order to reduce the situation that the two clamping teeth 43 are accidentally loosened, one side, meshed with the clamping teeth 43, can be obliquely arranged, so that the meshing surface can be increased, the friction force is improved, and the meshing stability of the two clamping teeth 43 is kept.
In this embodiment, since the squeezing head 42 squeezes the bag body 3 to fold the bag body 3 into a shape of '12579', such a design can leave a crease on the bag body 3 to facilitate tearing the bag body 3, and after the clamping teeth 43 are provided, the crease can be deepened to guide tearing of the bag body 3, thereby further facilitating tearing of the bag body 3.
The specific maximum sliding stroke of the extrusion head 42 is realized by the following scheme that a limit groove 411 is formed at the extending end of the extrusion rod 41, and a limit ring 44 is arranged at the opening of the limit groove 411; the extrusion head 42 is sleeved in the limiting ring 44 to slide, a limiting block 45 is sleeved outside one end of the extrusion head 42, which is positioned in the limiting groove 411, and a limiting spring 46 is arranged between the limiting block 45 and the side wall of the limiting groove 411; after the two clamping teeth 43 are engaged, the extrusion head 42 can block the limiting ring 44 from sliding out of the limiting groove 411, meanwhile, the limiting spring 46 is stretched, when the extrusion head 42 slides to the position where the limiting block 45 abuts against the limiting ring 44, which is the maximum stroke position of the extrusion head 42, then the two clamping teeth 43 will cross each other, and after the two clamping teeth 43 are loosened, the limiting spring 46 rebounds to drive the extrusion head 42 to retract into the limiting groove 411.
In order to realize that the heat-sealing cylinder 22 can continuously push the extrusion rod 41 to slide after pushing the heat-sealing head 21 to slide, the heat-sealing mechanism 2 further comprises a heat-sealing support 23 fixed on the bag clamping mechanism 1, a heat-sealing push rod 24 fixed at the movable end of the heat-sealing cylinder 22 and a heat-sealing fixture block 25 fixedly connected to the back of the heat-sealing head 21, specifically, an extending end of the upper end face of the heat-sealing head 21 is provided with an inclined plane, the inclined plane can improve the overall strength of the heat-sealing head 21, so that the two heat-sealing heads 21 cannot be damaged after being connected, meanwhile, a bolt hole is clamped in the direction of the heat-sealing fixture block 25 on the inclined plane, and the heat-sealing head 21 and the heat-sealing fixture block 25 are fixed by passing a bolt through the bolt hole; the heat-seal air cylinder 22 is fixed on the heat-seal bracket 23; the back of the heat-sealing fixture block 25 is provided with an open groove 251 suitable for inserting the heat-sealing push rod 24, and the open groove 251 is communicated with the sliding groove 211; a linkage push plate 26 is fixedly connected to the end of the heat-sealing push rod 24, a telescopic rod 27 is fixedly connected between the linkage push plate 26 and the heat-sealing head 21, specifically, the telescopic rod 27 can be two inner sleeves and outer sleeves which slide mutually, and has no restoring capability, the inner sleeves are fixed with the linkage push plate 26, the outer sleeves are fixedly connected with the heat-sealing head 21, and telescopic springs 28 are sleeved outside the telescopic rods 27; the extrusion rod 41 is fixedly connected with the linkage push plate 26; when the heat-seal push rod device is used, the heat-seal push rod 24 is pushed to slide by the heat-seal air cylinder 22, the length of the telescopic rod 27 is kept unchanged by the telescopic spring 28, so that the heat-seal push rod 24 can simultaneously push the heat seal head 21 and the extrusion rod 41 to slide, after the two heat seal heads 21 are contacted, the heat-seal air cylinder 22 continuously pushes the heat-seal push rod 24, the heat-seal push rod 24 can push the linkage push plate 26 to continuously push the extrusion rod 41 to slide, meanwhile, the telescopic spring 28 rebounds, and the inner sleeve and the outer sleeve slide relatively; when the heat-seal cylinder 22 is retracted, it is first returned to its initial state by the expansion spring 28, after which the heat seal heads 21 are separated from each other to create a gap so that the seals cool.
The specific structure of the bag clamping mechanism 1 is as follows, the bag clamping mechanism 1 comprises a bag clamping base 11, a bag clamping bottom plate 12 sliding along the short side of the bag clamping base 11, a bag clamping bottom rail 13 sliding along the long side of the bag clamping base 11, and a plurality of bag clamping assemblies 14 arranged on the bag clamping bottom rail 13; the heat-seal support 23 is fixed on the bag clamping base 11; a first bag clamping cylinder 15 is fixedly connected to the bag clamping base 11, and the movable end of the first bag clamping cylinder 15 is fixedly connected with the bag clamping bottom plate 12; a second bag clamping cylinder 16 is fixedly connected to the bag clamping bottom plate 12, and the movable end of the second bag clamping cylinder 16 is fixedly connected to the bag clamping bottom rail 13; the first bag clamping cylinder 15 can push the corresponding bag clamping bottom plate 12 to slide, and the two bag clamping bottom plates 12 can approach each other, so that the two opposite bag clamping assemblies 14 clamp the bag body 3; the second bag clamping cylinder 16 can push the corresponding bag clamping bottom rail 13 to slide so as to convey the bag bodies 3.
The specific bag clamping assembly 14 is as follows, the bag clamping assembly 14 includes a bag clamping mounting block 141 fixed on the bag clamping bottom rail 13, the bag clamping mounting block 141 is strip-shaped, two bag clamping side plates 142 are connected on the bag clamping mounting block 141 in a sliding manner, the bag clamping mounting block 141 plays a role in guiding the sliding of the bag clamping side plates 142, the distance between the two bag clamping side plates 142 corresponds to the width of the bag body 3, and the bag clamping mounting block can be adapted to different bag bodies 3 for use by adjusting the distance between the two bag clamping side plates 142, so that the universality of the heat sealing device is enriched, in order to realize the clamping of the bag body 3, the clamping blocks 143 are mounted on the bag clamping side plates 142, when the first bag clamping cylinder 15 pushes the bag clamping bottom plate 12 to slide, the two bag clamping bottom rails 13 are close to each other, the two opposite bag clamping side plates 142 are close to each other, and the two opposite clamping blocks 143 are close to each other and clamp the bag body 3; the specific mode of adjusting two bag clamping side plates 142 is as follows, one bag clamping side plate 142 is fixedly connected with a first cross rod 144, the other bag clamping side plate 142 is rotatably connected with a second cross rod 145, the second cross rod 145 is in threaded connection with the first cross rod 144, and the second cross rod 145 can be driven to be screwed in or out of the first cross rod 144 by rotating the second cross rod 145, so that the distance between the two bag clamping side plates 142 is changed, and for the convenience of rotating the second cross rod 145, a knob 146 can be installed at the end part of the second cross rod 145.
In order to realize the filling of the bag body 3, a support 51 is erected on the two bag clamping bases 11, and a filling hole 511 is formed in the support 51; the upper end face of the strutting support 51 is fixedly connected with two strutting cylinders 52, the two strutting cylinders 52 are positioned at two sides of the material filling hole 511, the moving directions of the two strutting cylinders 52 are on the same horizontal plane, and the moving ends of the two strutting cylinders 52 are respectively fixedly connected with a strutting connecting rod 53; the two spreading connecting rods 53 penetrate through the filling holes 511 and then extend to the two sides of the clamped bag body 3; when the bag opening device is used, the bag body 3 is adsorbed by the opening air nozzles 54, the two opening air cylinders 52 can push the two opening air nozzles 54 to slide back to back through the opening connecting rods 53, so that the bag body 3 is opened, and materials are filled into the opened bag body 3 after passing through the filling holes 511.
Example two
On the basis of the first embodiment, the second embodiment further provides a heat sealing method for the heat sealing device for the freshness protection package, and the specific structure of the heat sealing device for the freshness protection package is the same as that of the first embodiment, and is not described herein again.
The heat sealing method of the heat sealing device for the freshness protection package is as follows, the second cross bar 145 is rotated to adjust the distance between the two bag clamping side plates 142; the bag clamping bottom plate 12 is pushed to slide by the first bag clamping cylinder 15, so that the two opposite clamping blocks 143 clamp the bag body 3; the bag clamping bottom rail 13 is pushed to slide by the second bag clamping air cylinder 16, so that the clamped bag body 3 slides to a position between the two opening air nozzles 54; the bag body 3 is absorbed by the opening air tap 54; the opening air tap 54 is pushed to slide by the opening air cylinder 52 so as to open the bag body 3; the bag body 3 is filled with materials through the filling hole 511; the second bag clamping cylinder 16 slides the expanded bag body 3 to a position between the two heat sealing heads 21; the heat-sealing push rod 24 is pushed to slide by the heat-sealing cylinder 22, so that the two heat-sealing heads 21 clamp the bag body 3; the heat-sealing push rod 24 is pushed to slide continuously by the heat-sealing air cylinder 22, so that the extrusion head 42 extends out of the sliding groove 211 and extrudes the bag body 3; shaking is generated by the shrinkage of the bag body 3, so that the materials in the bag body 3 are smooth; heat-sealing the pouch body 3 by the heat-sealing head 21; the heat-seal push rod 24 is pulled back by the heat-seal cylinder 22 until the two clamping teeth 43 are engaged, so that the two heat-seal heads 21 are separated; after the seal is cooled and solidified, the heat-seal push rod 24 is continuously pulled back through the heat-seal air cylinder 22 so as to separate the two clamping teeth 43; finally, the heat-sealed bag bodies 3 are conveyed backwards through a second bag clamping air cylinder 16.
In light of the foregoing description of the preferred embodiment of the present invention, it is intended that the present invention cover modifications and variations of this invention provided they fall within the scope of the following claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a freshness protection package heat-sealing device which characterized in that includes:
the bag clamping device comprises two bag clamping mechanisms arranged in a mirror image manner, two heat sealing mechanisms respectively fixed on the two bag clamping mechanisms, and an extrusion part arranged in the heat sealing mechanisms; and
the bag clamping mechanism is suitable for clamping the bag body;
the two heat-sealing mechanisms are oppositely arranged and can slide oppositely and heat-seal the bag body;
the extrusion part has elasticity and can slide along the heat sealing mechanism; the two extrusion parts in the two heat sealing mechanisms are arranged in a staggered way; wherein
After the two heat-sealing mechanisms are mutually closed to be contacted, the two extrusion parts can extend out of the heat-sealing mechanisms and extrude the bag body so as to shake the bag body;
after heat sealing is finished, the two heat sealing mechanisms are separated, and the two extrusion parts can keep clamping the bag body.
2. The heat-sealing apparatus for fresh-keeping bags according to claim 1, wherein,
the heat-sealing mechanism comprises a heat-sealing head and a heat-sealing air cylinder linked with the heat-sealing head, the two heat-sealing air cylinders can drive the two heat-sealing heads to move in opposite directions or in opposite directions, and the heat-sealing air cylinders are linked with the corresponding extrusion parts;
the extending end of the heat sealing head is provided with a sliding groove, the extrusion parts can slide along the sliding groove, the thickness of the sliding groove is equal to the sum of the thicknesses of the two extrusion parts, and the two extrusion parts are respectively attached to the inner top wall and the inner bottom wall of the corresponding sliding groove; wherein
After the two heat sealing heads are mutually close to be contacted, the heat sealing air cylinder can push the corresponding extrusion part to extend out of the sliding groove;
after the heat sealing is finished, the two heat sealing cylinders drive the two heat sealing heads to separate.
3. The heat-sealing apparatus for fresh-keeping bags according to claim 2, wherein,
the extrusion part comprises an extrusion rod connected in the sliding groove in a sliding mode and an extrusion head sliding at the extending end of the extrusion rod; and
the extrusion rod is linked with the heat-sealing air cylinder; wherein
After the heat-sealing heads are mutually close to be contacted, the heat-sealing air cylinder can push the extrusion heads to extend out of the sliding groove through the extrusion rods, and the two extrusion heads are mutually crossed and extrude the bag body;
when the two heat sealing heads are separated after the heat sealing is finished, the two extrusion heads keep clamping the bag body and extend out of the corresponding extrusion rods.
4. The heat-sealing apparatus for fresh-keeping bags according to claim 3, wherein,
the extending end of each extrusion head is fixedly connected with a clamping tooth, and the clamping teeth are respectively positioned on the upper end surface and the lower end surface of the two heat sealing heads; wherein
When the two heat sealing heads are separated after heat sealing is finished, the two clamping teeth can be meshed with each other.
5. The heat-sealing apparatus for fresh-keeping bags according to claim 4, wherein,
the extension end of the extrusion rod is provided with a limiting groove, and the opening of the limiting groove is provided with a limiting ring;
the extrusion head is sleeved in the limiting ring to slide, a limiting block is sleeved outside one end of the extrusion head, which is positioned in the limiting groove, and a limiting spring is arranged between the limiting block and the side wall of the limiting groove; wherein
The limiting ring can block the extrusion head from sliding out of the limiting groove.
6. The heat-sealing device for fresh-keeping bags according to claim 5,
the heat-sealing mechanism also comprises a heat-sealing bracket fixed on the bag clamping mechanism, a heat-sealing push rod fixed at the movable end of the heat-sealing air cylinder and a heat-sealing fixture block fixedly connected to the back of the heat-sealing head; and
the heat-sealing air cylinder is fixed on the heat-sealing bracket;
the back of the heat-sealing fixture block is provided with an open slot suitable for inserting a heat-sealing push rod, and the open slot is communicated with the sliding slot;
the end part of the heat-sealing push rod is fixedly connected with a linkage push plate, a telescopic rod is fixedly connected between the linkage push plate and the heat-sealing head, and a telescopic spring is sleeved outside the telescopic rod;
the extrusion rod is fixedly connected with the linkage push plate; wherein
And after the heat-seal push rod pushes the corresponding heat seal heads to be contacted with each other, the heat-seal push rod pushes the extrusion rod to drive the extrusion heads to extend out of the sliding groove.
7. The heat-sealing apparatus for fresh-keeping bags according to claim 6, wherein,
the bag clamping mechanism comprises a bag clamping base, a bag clamping bottom plate, a bag clamping bottom rail and a plurality of bag clamping assemblies, wherein the bag clamping bottom plate slides along the short side of the bag clamping base;
the heat-seal bracket is fixed on the bag clamping base;
a first bag clamping cylinder is fixedly connected to the bag clamping base, and the movable end of the first bag clamping cylinder is fixedly connected with the bag clamping bottom plate;
a second bag clamping cylinder is fixedly connected to the bag clamping bottom plate, and the movable end of the second bag clamping cylinder is fixedly connected with the bag clamping bottom rail; wherein
The first bag clamping cylinder can push the corresponding bag clamping bottom plate to slide so that the two bag clamping assemblies clamp the bag body;
the second bag clamping cylinder can push the corresponding bag clamping bottom rail to slide so as to convey the bag body.
8. The heat-sealing apparatus for fresh-keeping bags as claimed in claim 7, wherein,
the bag clamping assembly comprises a bag clamping mounting block fixed on the bag clamping bottom rail, two bag clamping side plates connected on the bag clamping mounting block in a sliding manner, and
one bag clamping side plate is fixedly connected with a first cross rod, the other bag clamping side plate is rotatably connected with a second cross rod, and the second cross rod is in threaded connection with the first cross rod;
the bag clamping side plate is fixedly connected with a clamping block; wherein
The second cross rod is rotated to adjust the distance between the two adjacent bag clamping side plates, and the bag body can be clamped by the two opposite clamping blocks.
9. The heat-sealing apparatus for fresh-keeping bags as claimed in claim 8, wherein,
a support is erected on the two bag clamping bases, and a filling hole is formed in the support;
the opening support is fixedly connected with two opening cylinders, and the movable ends of the two opening cylinders are respectively and fixedly connected with an opening connecting rod;
the opening connecting rods penetrate through the filling holes and are respectively positioned on two sides of the clamped bag body;
two opening connecting rods are respectively and fixedly connected with an opening air nozzle, wherein
After the opening air tap adsorbs the bag body, the opening air cylinder can push the corresponding opening air tap to slide so as to open the bag body.
10. A heat-sealing method for a heat-sealing device of a freshness-preserving bag, comprising the heat-sealing device of claim 9;
rotating the second cross rod to adjust the distance between the two bag clamping side plates;
the bag clamping bottom plate is pushed to slide by the first bag clamping cylinder, so that the bag bodies are clamped by the two opposite clamping blocks;
the second bag clamping cylinder pushes the bag clamping bottom rail to slide so that the clamped bag body slides to a position between the two opening air nozzles;
the bag body is absorbed by the opening air tap;
the opening air tap is pushed to slide by the opening air cylinder so as to open the bag body;
filling materials into the bag body through the material filling hole;
then the second bag clamping cylinder slides the opened bag body to a position between the two heat sealing heads;
the heat-sealing push rod is pushed to slide by the heat-sealing cylinder, so that the two heat-sealing heads clamp the bag body;
continuously pushing the heat-sealing push rod to slide through the heat-sealing air cylinder so as to enable the extrusion head to extend out of the sliding groove and extrude the bag body;
shaking is generated by the shrinkage of the bag body, so that the materials in the bag body are smooth;
heat-sealing the bag body by a heat-sealing head;
the heat-sealing push rod is pulled back through the heat-sealing cylinder until the two clamping teeth are meshed, so that the two heat sealing heads are separated;
waiting for the seal to be cooled and solidified,
the heat-sealing push rod is continuously pulled back through the heat-sealing air cylinder so as to separate the two clamping teeth;
and finally, conveying the heat-sealed bag body backwards through a second bag clamping cylinder.
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| CN202110354560.7A CN115158792B (en) | 2021-04-01 | 2021-04-01 | Freshness protection package heat sealing device and heat sealing method |
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Effective date of registration: 20230512 Address after: Room 706, Unit 1, Building 1, No. 9, Gongye West Road, Songshanhu Park, Dongguan City, Guangdong Province, 523000 Applicant after: Dongguan Xiangrui Environmental Protection Technology Co.,Ltd. Address before: 213000 8th Floor, Block B, Tianrun Science and Technology Building, 801 Changwuzhong Road, Changzhou City, Jiangsu Province Applicant before: CHANGZHOU JIANGSU UNIVERSITY ENGINEERING TECHNOLOGY Research Institute |