CN116765764A - Packaging machine head machining method and packaging machine head - Google Patents
Packaging machine head machining method and packaging machine head Download PDFInfo
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- CN116765764A CN116765764A CN202310906939.3A CN202310906939A CN116765764A CN 116765764 A CN116765764 A CN 116765764A CN 202310906939 A CN202310906939 A CN 202310906939A CN 116765764 A CN116765764 A CN 116765764A
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- roller
- machine head
- packaging machine
- packaging
- die
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims description 22
- 238000003754 machining Methods 0.000 title abstract description 13
- 238000005498 polishing Methods 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 238000005520 cutting process Methods 0.000 claims abstract description 34
- 238000005242 forging Methods 0.000 claims abstract description 25
- 239000011265 semifinished product Substances 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 239000000047 product Substances 0.000 claims abstract description 23
- 238000003672 processing method Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 35
- 238000012545 processing Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 3
- 239000012785 packaging film Substances 0.000 description 19
- 229920006280 packaging film Polymers 0.000 description 19
- 239000004033 plastic Substances 0.000 description 17
- 230000008569 process Effects 0.000 description 11
- 239000003814 drug Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000012858 packaging process Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B65B51/16—Applying or generating heat or pressure or combinations thereof by rotary members
-
- 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
- B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
- B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
- B65B61/08—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting using rotary cutters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
The invention discloses a processing method of a packaging machine head and the packaging machine head, wherein the packaging machine head at least comprises a rolling shaft for sealing or cutting packaging bags, and the processing method comprises the following steps: 1) Cutting raw materials: cutting the metal into roller blanks of required length; 2) Crude: heating the roller blank in the step 1) to 900-1100 ℃, and hammering the roller blank by using an air hammer or a forging press to obtain a roller blank; 3) And (3) die forging: placing the roller blank in the step 2) into a mold cavity for forging to obtain a roller semi-finished product; 4) Polishing: and (3) polishing the semi-finished roller product in the step (3) to obtain a finished roller product. According to the invention, after the roller semi-finished product is obtained through die forging, the roller finished product can be obtained through simply grinding and polishing, cutting machining is not needed, the roller machining flow is simplified, the loss of roller blanks is reduced, the production cost of a packaging machine head is reduced, and the machining efficiency of the packaging machine head is improved.
Description
Technical Field
The invention belongs to the field of packaging machines, and particularly relates to a machine head processing method of a packaging machine and the machine head of the packaging machine.
Background
The packaging machine head refers to equipment capable of completing all or part of product and commodity packaging processes, wherein the packaging processes comprise filling, wrapping, sealing and other main processes, wherein plastic packaging bags are widely applied to the field of traditional Chinese medicine packaging, for example, plastic packaging bags are used for packaging traditional Chinese medicine materials in various forms such as liquid, paste, granular powder and the like, the packaging machine head is used for sealing edges of two vertical sides of the packaging bags, then the traditional Chinese medicine materials are filled, the packaging bags are transversely sealed, and the packaging bags filled with the traditional Chinese medicine materials are cut into bags.
The packaging machine head at least comprises a pair of knurling shafts, a pair of intermediate shafts, a cutter shaft and a cutter support shaft which are symmetrically used, specifically, under the drive of a motor, two plastic packaging films enter the packaging machine head from top to bottom simultaneously, the pair of knurling shafts seal edges on two vertical sides of the two plastic packaging films, then traditional Chinese medicine substances are filled, the pair of intermediate shafts transversely seal the plastic conjoined packaging films, the cutter shaft and the cutter support shaft cut the packaging bag filled with the traditional Chinese medicine substances into bags, the whole packaging process is short in duration and high in mechanization degree, however, the knurling shafts, the intermediate shafts, the cutter shaft and the cutter support shaft of the packaging machine head are respectively prepared by cutting rod-shaped metal raw materials through mechanical equipment, and in the whole preparation process, the cutting loss is large, the processing time is long, and the production cost is high.
The present invention has been made in view of this.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art and providing a processing method of a packaging machine head so as to realize the aims of precisely controlling the production process flow of the packaging machine head and reducing the production cost of the packaging machine head.
In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that:
a method of processing a packaging machine head including at least rollers for sealing or cutting packaging bags, the method comprising:
1) Cutting raw materials: cutting the metal into roller blanks of required length;
2) Crude: heating the roller blank in the step 1) to 900-1100 ℃, and hammering the roller blank by using an air hammer or a forging press to obtain a roller blank;
3) And (3) die forging: placing the roller blank in the step 2) into a mold cavity for forging to obtain a roller semi-finished product;
4) Polishing: and (3) polishing the semi-finished roller product in the step (3) to obtain a finished roller product.
Further, the roller comprises a roller main body matched with the packaging bag, the roller main body is provided with a contact surface attached to the sealing part of the packaging bag, the contact surface is an arc surface, and before die forging in the step 3), the roller further comprises:
3a) Manufacturing a die: the die consists of an upper die and a lower die, the upper die and the lower die are buckled to form a roller semi-finished product cavity, a first concave groove which is concave downwards is formed in the lower die, and the profile of the side wall of the first concave groove is matched with the contact surface.
Further, the roller main body further has an avoiding surface smoothly transitionally connected to the contact surface along the rotation direction of the roller, and the step 3 a) of manufacturing the mold further includes:
and a second concave groove which is concave upwards is formed in the upper die, and the outline of the side wall of the second concave groove is matched with the avoidance surface.
Further, dodge the face including following first plane, transition face and the second plane that the direction of rotation of roller bearing connects gradually, the transition face is the arc surface, step 3 a) manufacturing die still includes:
and the first side wall, the transition wall and the second side wall are sequentially arranged along the rotation direction of the roller and are matched with the first plane, the transition surface and the second plane.
Further, the spatial shape, the spatial size and the polishing allowance of the different areas of the roller semi-finished product in step 3) are determined according to the spatial shape and the spatial size of the different areas of the roller, and the polishing parameters performed in step 4) are determined.
The invention also provides a packaging machine head adopting the processing method, which at least comprises a roller for sealing or cutting the packaging bag, wherein the roller comprises a roller main body matched with the packaging bag, and the roller main body is provided with a contact surface attached to the sealing position of the packaging bag and an avoidance surface in smooth transition connection with the contact surface along the rotation direction of the roller.
Further, dodge the face including following first plane, transition face and the second plane that the direction of rotation of roller bearing connects gradually, first plane with the second plane respectively with contact surface slick and sly transitional coupling, transition face and contact surface are outwards convex arc surface.
Further, the arc length of the contact surface is 1/2 of the width of the sealing part of the packaging bag.
Further, the roller comprises rotating parts which are arranged at two ends of the roller body and are rotationally connected with the driving component, and limiting parts which radially protrude outwards are arranged at the connecting parts of the rotating parts and the roller body.
Further, the avoidance surface is in smooth transition connection with the limiting part, and an inwards concave chamfer is formed at the joint of the avoidance surface and the limiting part.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects.
1. According to the invention, after the roller semi-finished product is obtained through die forging, the roller finished product can be obtained through simply grinding and polishing, cutting machining is not needed, the roller machining flow is simplified, the loss of roller blanks is reduced, the production cost of a packaging machine head is reduced, and the machining efficiency of the packaging machine head is improved.
2. In the invention, the main body of the roller is directly formed into the avoidance surface matched with the contact surface through die forging, and the avoidance surface of the intermediate shaft is in non-contact with the plastic conjoined packaging film in the process of transversely sealing the plastic conjoined packaging film by a pair of intermediate shafts, so that the size of the transverse sealing part is accurately controlled; in the process of cutting off the transverse sealing part by the cutter shaft and the cutter support shaft which are matched with each other, the avoiding surfaces of the cutter shaft and the cutter support shaft are in non-contact with the packaging bag, so that faults such as noise and cutter clamping can be remarkably reduced, and the service life of the packaging machine is prolonged.
3. According to the invention, the avoiding surface comprises a first plane, a transition surface and a second plane which are sequentially connected along the rotation direction of a pair of intermediate shafts or a cutter shaft and a cutter support shaft which are matched with each other, so that the processing technology of the avoiding surface of the rolling shaft is optimized, and meanwhile, the avoiding surface of the rolling shaft main body is prevented from being contacted with the packaging bag in the process of cutting off the transverse sealing or transverse sealing part of the plastic conjoined packaging film, and the sealing size and the cut position of the packaging bag are accurately controlled.
4. In the invention, the roller surface is divided into a plurality of polishing areas, and each area adopts different polishing tools, polishing parameters and polishing tracks, so that the polishing precision is improved, the roller surface polishing can be realized, the traditional manual polishing at present can be replaced, and the polishing efficiency is improved.
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
FIG. 1 is a flow chart of a method of processing a packer head in an embodiment of the invention;
FIG. 2 is a schematic structural view of an intermediate shaft in an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is a schematic view of the structure of a cutter shaft in an embodiment of the present invention;
fig. 5 is a sectional view taken along the direction B-B in fig. 4.
In the figure:
1. an intermediate shaft; 11. a roller body; 111. a contact surface; 112. an avoidance surface; 1121. a first plane; 1122. a transition surface; 1123. a second plane; 12. a rotating part; 13. a limit part; 14. chamfering; 2. cutting a cutter shaft; 21. a roller body; 211. a contact surface; 212. an avoidance surface; 2121. a first plane; 2122. a transition surface; 2123. a second plane; 213. a mounting groove; 22. a rotating part; 23. and a limiting part.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
As shown in fig. 1, in an embodiment of the present invention, there is provided a processing method of a packaging machine head, the packaging machine head at least including a roller for sealing or cutting a packaging bag, the processing method including the steps of:
1) Cutting raw materials: cutting the metal into roller blanks of required length;
2) Crude: heating the roller blank in the step 1) to 900-1100 ℃, and hammering the roller blank by using an air hammer or a forging press to obtain a roller blank;
3) And (3) die forging: placing the roller blank in the step 2) into a mold cavity for forging to obtain a roller semi-finished product;
4) Polishing: and (3) polishing the semi-finished roller product in the step (3) to obtain a finished roller product.
In this embodiment, rod-shaped or block-shaped metal is cut into roller blanks with required length, the roller blanks are beaten, the beaten roller blanks are placed into a die cavity for forging, and finally, the forged roller semi-finished products are polished to obtain roller finished products with corresponding specifications.
In the traditional production process, the forged roller semi-finished product is in a bar shape, and production staff needs to cut the bar-shaped roller semi-finished product according to the size of the roller finished product so that the size of the roller finished product meets the packaging process requirement, but the cutting loss is large, the duration of the cutting process is long, the cutting operation is complex, the actual size of the roller finished product cannot be accurately controlled, and the qualification rate of the final finished product is low.
In the embodiment, the dimension of the semi-finished product of the roller is precisely controlled through die forging, the precision and flatness of the semi-finished product of the roller are guaranteed, the polishing allowance of the semi-finished product of the roller is reserved, the semi-finished product of the roller obtained after forging is polished, the finished product of the roller with corresponding specification can be obtained, the polishing operation is simple, the polishing loss is small, the qualification rate of the final finished product is high, and meanwhile, the processing time of the finished product of the roller is greatly shortened.
As shown in fig. 2 to 5, in this embodiment, the roller includes a roller body 11, 21 that is matched with the package, the roller body 11, 21 has a contact surface 111, 211 that is attached to the seal of the package, and the contact surface 111, 211 is an arc surface.
As shown in fig. 1, in this embodiment, before the step 3) die forging, the method further includes:
3a) Manufacturing a die: the die consists of an upper die and a lower die, the upper die and the lower die are buckled to form a roller semi-finished product cavity, a first concave groove which is concave downwards is formed in the lower die, and the profile of the side wall of the first concave groove is matched with the contact surfaces 111 and 211.
In this embodiment, the roller bodies 11, 21 are directly formed into the contact surfaces 111, 211 attached to the sealing positions of the packaging bags by die forging, and cutting operation is not required for the semi-finished products of the rollers, so that the processing flow of the packaging machine head is simplified, the production efficiency is improved, the loss of metal raw materials is reduced, and the production cost of the packaging machine head is reduced.
As shown in fig. 2 to 5, in the present embodiment, the packing machine head includes a pair of support plates, a pair of knurled shafts, a pair of intermediate shafts 1, a cutter shaft 2 and a cutter holder shaft that are fitted to each other, wherein the pair of support plates are vertically arranged parallel to each other and spaced apart from each other by a predetermined distance; the knurling shafts are horizontally arranged between the pair of support plates and are used for packaging two side edges of two plastic packaging films introduced from top to bottom; a pair of intermediate shafts 1 horizontally arranged below the pair of knurling shafts and used for horizontally sealing the plastic conjoined packaging film at intervals along the horizontal direction; the cutter shaft 2 and the cutter supporting shaft which are matched with each other are horizontally arranged below the pair of intermediate shafts 1 and are used for cutting the packaging bags filled with materials and packaged along the horizontal transverse sealing part.
In this embodiment, as shown in fig. 3 and 4, the cutter is mounted on the cutter shaft 2, the cutter holder shaft is provided with an insert strip, and when the packaging bag advances between the cutter holder shaft and the cutter shaft 2, the cutter on the cutter shaft 2 can be completely abutted with the insert strip on the cutter holder shaft, so that the transverse sealing part of the packaging bag is cut into bags.
As shown in fig. 2 to 5, in this embodiment, the roller may be any one of the intermediate shaft 1, the cutter supporting shaft and the cutter shaft 2, the sealing portion of the package bag is a transverse sealing portion of the package bag, the intermediate shaft 1, the cutter supporting shaft and the cutter shaft 2 have contact surfaces 111 and 211 adapted to the transverse sealing portion of the package bag, and the contact surfaces 111 and 211 are arc surfaces.
As shown in fig. 2 to 5, in the present embodiment, the cutter is installed at a position intermediate the contact surface 211 of the cutter shaft 2 and extends in the axial direction of the cutter shaft 2; the insert strip is mounted in the middle of the contact surface 211 of the cutter supporting shaft and extends along the axial direction of the cutter supporting shaft, specifically, a mounting groove 213 along the axial direction of the cutter supporting shaft is formed in the cutter supporting shaft, and the insert strip is arranged in the mounting groove 213.
As shown in fig. 2 to 5, in this embodiment, the roller body 11, 21 further has a relief surface 112, 212 that is smoothly connected to the contact surface 111, 211 along the rotation direction of the roller.
As shown in fig. 1, in this embodiment, the step 3 a) of manufacturing a mold further includes the steps of:
step 3a 1): and a second concave groove which is concave upwards is formed in the upper die, and the outline of the side wall of the second concave groove is matched with the avoidance surface 112, 212.
In the embodiment, the roller bodies 11 and 21 are directly formed into the avoiding surfaces 112 and 212 matched with the contact surfaces 111 and 211 through die forging, and in the process of transversely sealing the plastic conjoined packaging film by the pair of intermediate shafts 1, the avoiding surfaces 112 of the intermediate shafts 1 are in non-contact with the plastic conjoined packaging film, so that the size of the transversely sealed part is accurately controlled; in the process that the transverse sealing part is cut off by the cutter shaft 2 and the cutter supporting shaft which are matched with each other, the avoiding surface 212 of the cutter shaft 2 and the cutter supporting shaft is in non-contact with the packaging bag, so that faults such as noise and cutter clamping can be remarkably reduced, and the service life of the packaging machine is prolonged.
As shown in fig. 2, 3 and 5, in this embodiment, the avoiding surface 112, 212 includes a first plane 1121, 2121, a transition surface 1122, 2122, and a second plane 1123, 2123 that are sequentially connected along the rotation direction of the roller, the transition surface 1122, 2122 is an arc surface, and the step 3 a) of manufacturing a mold further includes the following steps:
step 3a 2): the first side wall, the transition wall and the second side wall are sequentially arranged along the rotation direction of the roller and are matched with the first plane 1121, 2121, the transition surface 1122, 2122 and the second plane 1123, 2123.
In the traditional production process, in the process of packaging, filling, transverse sealing, reinforcing and cutting off the two side edges of the plastic packaging film, in order to prevent scalding or adhesion of the packaging film in the process of packaging, filling, transverse sealing, reinforcing and cutting off the side edges, the roller semi-finished product forms an avoiding surface with 7 edge surfaces connected in sequence through a cutting process, so that the avoiding surface is close to an arc surface, but in machining, the working difficulty is increased, and the production efficiency of a packaging machine head is low.
In this embodiment, the avoiding surfaces 112, 212 include a first plane 1121, 2121, a transition surface 1122, 2122 and a second plane 1123, 2123 which are sequentially connected along the rotation direction of the pair of intermediate shafts 1 or the cutter shaft 2 and the cutter support shaft, which are mutually matched, so that the processing technology of the avoiding surfaces 112, 212 of the roller is optimized, and meanwhile, in the process of cutting off the transverse sealing or transverse sealing part of the plastic conjoined packaging film, the avoiding surfaces 112, 212 of the roller main bodies 11, 21 are prevented from contacting with the packaging bag, so that the sealing size and the cut position of the packaging bag are accurately controlled.
As shown in fig. 1, in the present embodiment, the spatial shape, the spatial size, and the polishing margin of the different areas of the roller semi-finished product in step 3) are determined according to the spatial shape and the spatial size of the different areas of the roller, and the polishing parameters performed in step 4) are determined.
In this embodiment, the roller profile is divided into a plurality of polishing areas, and each area adopts different polishing tools, polishing parameters and polishing tracks, so that polishing precision is improved, roller profile polishing can be realized, current traditional manual polishing can be replaced, and polishing efficiency is improved.
In this embodiment, as shown in fig. 1, the radius of the sidewall of the first groove corresponding to the arc surface is designed according to the radius +r1 of the contact surfaces 111, 211, and the radius of the sidewall of the second groove corresponding to the transition surfaces 1122, 2122 is designed according to the radius +r2 of the transition surfaces 1122, 2122.
In this embodiment, the contact surfaces 111 and 211 and the transition surfaces 1122 and 2122 are outer arc surfaces, R1 is the polishing allowance of the contact surfaces 111 and 211 of the roller semi-finished product, R2 is the polishing allowance of the transition surfaces 1122 and 2122 of the roller semi-finished product, and corresponding polishing allowances are reserved through different areas of the roller semi-finished product, so that the roller finished product is ensured to be more uniform and consistent in depth, the whole outer surface is identical, and scalding or adhesion of the packaging film in the transverse sealing, reinforcing and cutting processes is avoided.
By the aid of the machining method of the packaging machine head, after the roller semi-finished product is obtained through die forging, the roller finished product can be obtained through simple grinding and polishing, machining is not needed, machining flow of the roller is simplified, loss of roller blanks is reduced, production cost of the packaging machine head is reduced, and machining efficiency of the packaging machine head is improved.
Example two
As shown in fig. 2 to 5, the present invention further provides a packaging machine head adopting the processing method according to the first embodiment, the packaging machine head at least comprises a roller for sealing or cutting packaging bags, the roller comprises a roller main body 11, 21 matched with the packaging bags, the roller main body 11, 21 has a contact surface 111, 211 jointed with the sealing position of the packaging bags, and an avoiding surface 112, 212 in smooth transition connection with the contact surface 111, 211 along the rotation direction of the roller.
In this embodiment, the roller main bodies 11, 21 are directly formed into contact surfaces 111, 211 attached to the sealing positions of the packaging bags and avoidance surfaces 112, 212 matched with the contact surfaces 111, 211 through die forging, and then the contact surfaces 111, 211 and the avoidance surfaces 112, 212 are polished, so that the roller finished products are more uniform and consistent in depth, the whole outer surfaces are identical, and the quality and the service life of the roller are improved.
In this embodiment, in the process of transversely sealing the plastic conjoined packaging film by the pair of intermediate shafts 1, the contact surface 111 of the intermediate shaft 1 contacts with the plastic conjoined packaging film, and the transverse sealing is realized, and the avoiding surface 112 of the intermediate shaft 1 does not contact with the plastic conjoined packaging film, so that the size of the transverse sealing part is accurately controlled.
In this embodiment, in the process of cutting off the transverse sealing part by the cutter shaft 2 and the cutter supporting shaft which are matched with each other, the contact surface 211 of the cutter supporting shaft and the cutter shaft 2 is provided with a cutter and a cutting insert respectively, the avoiding surface 212 of the cutter shaft 2 and the cutter supporting shaft is in non-contact with the packaging bag, so that the faults such as noise and cutter clamping can be obviously reduced, and the service life of the packaging machine is prolonged.
As shown in fig. 2, 3 and 5, in this embodiment, the avoiding surfaces 112, 212 include first planes 1121, 2121, transition surfaces 1122, 2122 and second planes 1123, 2123 that are sequentially connected along the rotation direction of the roller, the first planes 1121, 2121 and the second planes 1123, 2123 are respectively in smooth transition connection with the contact surfaces 111, 211, and the transition surfaces 1122, 2122 and the contact surfaces 111, 211 are arc surfaces that protrude outwards.
In this embodiment, the avoiding surfaces 112, 212 include a first plane 1121, 2121, a transition surface 1122, 2122, and a second plane 1123, 2123 sequentially connected along the rotation direction of the roller, where the first plane 1121, 2121 and the second plane 1123, 2123 are distributed on two sides of the contact surface 111, 211 along the circumferential direction of the roller, so as to reduce the contact surface 111, 211 and the bonding degree between the avoiding surface 112, 212 and the packaging film, and prevent the packaging film from being scalded or adhered.
As shown in fig. 2 to 5, in this embodiment, the arc length of the contact surfaces 111 and 211 is 1/2 of the width of the package seal.
As shown in fig. 2 to 5, in this embodiment, the roller includes rotating portions 12 and 22 disposed at two ends of the roller body 11 and 21 and rotationally connected to the driving assembly, and limiting portions 13 and 23 protruding radially outwards are disposed at the connection portions of the rotating portions 12 and 22 and the roller body 11 and 21.
In this embodiment, according to the spatial shapes and spatial dimensions of the rotating portions 12, 22, the limiting portions 13, 23 and the roller bodies 11, 21 of the roller, the spatial shapes, spatial dimensions and polishing margins of the roller semi-finished products corresponding to different areas are determined, and corresponding polishing parameters are performed on the rotating portions 12, 22, the limiting portions 13, 23 and the roller bodies 11, 21.
In this embodiment, as shown in fig. 3, the avoiding surfaces 112, 212 are in smooth transition connection with the limiting portions 13, 23, and the connection between the avoiding surfaces 112, 212 and the limiting portions 13, 23 forms an inward concave chamfer 14, which is convenient for polishing and forming, and reduces processing difficulty.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.
Claims (10)
1. A method of processing a packaging machine head including at least rollers for sealing or cutting packaging bags, the method comprising:
1) Cutting raw materials: cutting the metal into roller blanks of required length;
2) Crude: heating the roller blank in the step 1) to 900-1100 ℃, and hammering the roller blank by using an air hammer or a forging press to obtain a roller blank;
3) And (3) die forging: placing the roller blank in the step 2) into a mold cavity for forging to obtain a roller semi-finished product;
4) Polishing: and (3) polishing the semi-finished roller product in the step (3) to obtain a finished roller product.
2. The method of claim 1, wherein the roller comprises a roller body matched with the packaging bag, the roller body has a contact surface attached to a sealing position of the packaging bag, the contact surface is an arc surface, and the step 3) before die forging further comprises:
3a) Manufacturing a die: the die consists of an upper die and a lower die, the upper die and the lower die are buckled to form a roller semi-finished product cavity, a first concave groove which is concave downwards is formed in the lower die, and the profile of the side wall of the first concave groove is matched with the contact surface.
3. The method of claim 2, wherein the roller body further has a relief surface smoothly transitionally coupled to the contact surface in a rotation direction of the roller, and the step 3 a) of manufacturing the die further comprises:
and a second concave groove which is concave upwards is formed in the upper die, and the outline of the side wall of the second concave groove is matched with the avoidance surface.
4. A method of manufacturing a packaging machine head according to claim 3, wherein the avoiding surface includes a first plane, a transition surface, and a second plane sequentially connected in a rotation direction of the roller, the transition surface being an arc surface, and the manufacturing die of step 3 a) further includes:
and the first side wall, the transition wall and the second side wall are sequentially arranged along the rotation direction of the roller and are matched with the first plane, the transition surface and the second plane.
5. A method of manufacturing a machine head for packaging machines according to any one of claims 1 to 4, characterized in that the spatial shape, the spatial dimensions and the polishing margin of the different areas of the semifinished roller product in step 3) are determined on the basis of the spatial shape and the spatial dimensions of the different areas of the roller, and the polishing parameters carried out in step 4) are determined.
6. A packaging machine head adopting the processing method according to any one of claims 1 to 5, wherein the packaging machine head at least comprises a roller for sealing or cutting packaging bags, and the roller comprises a roller main body matched with the packaging bags, and the roller main body is provided with a contact surface attached to the sealing position of the packaging bags and an avoidance surface in smooth transition connection with the contact surface along the rotation direction of the roller.
7. The packaging machine head according to claim 6, wherein the avoiding surface comprises a first plane, a transition surface and a second plane which are sequentially connected along the rotation direction of the roller, the first plane and the second plane are respectively in smooth transition connection with the contact surface, and the transition surface and the contact surface are arc surfaces protruding outwards.
8. A packaging machine head as claimed in claim 7, wherein the arc length of the contact surface is 1/2 of the width of the package at the seal.
9. A packaging machine head according to any one of claims 6 to 8, wherein the roller comprises rotating parts which are arranged at two ends of the roller body and are rotatably connected with the driving assembly, and limiting parts which protrude outwards in the radial direction are arranged at the connecting parts of the rotating parts and the roller body.
10. The packaging machine head of claim 9, wherein the avoiding surface is in smooth transition connection with the limiting portion, and an inward concave chamfer is formed at the connection position of the avoiding surface and the limiting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310906939.3A CN116765764A (en) | 2023-07-24 | 2023-07-24 | Packaging machine head machining method and packaging machine head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310906939.3A CN116765764A (en) | 2023-07-24 | 2023-07-24 | Packaging machine head machining method and packaging machine head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116765764A true CN116765764A (en) | 2023-09-19 |
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ID=87989671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310906939.3A Pending CN116765764A (en) | 2023-07-24 | 2023-07-24 | Packaging machine head machining method and packaging machine head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116765764A (en) |
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2023
- 2023-07-24 CN CN202310906939.3A patent/CN116765764A/en active Pending
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