CN218640436U - Handle opening hot cutting device for single-side or double-side non-film-coated woven bag - Google Patents

Abstract

The utility model provides a hand-held opening hot cutting device for a single-sided or double-sided non-film-coated woven bag, which comprises a waste material pressing and positioning mechanism, a hot cutting mechanism and a hollow base; the waste pressing and positioning mechanism comprises a first fixed mounting seat, an ejector pin mounting block and an ejector pin downward-extending pushing mechanism; the hot cutting mechanism comprises an annular heating block and a hollow annular hot cutter, and the hollow annular hot cutter is used for realizing hot cutting of the handle opening of the woven bag; the hollow base is located under the hollow annular hot cutting knife, the waste material pressing and positioning mechanism is sleeved in the hollow annular hot cutting knife, and when the lower portion of the ejector pin cylinder body is not blocked by the woven bag, the ejector pin can extend out of the lower portion of the hollow annular hot cutting knife under the pushing of the ejector pin downward-extending pushing mechanism. In the process of carrying out hot punching and cutting on the handle opening, the waste material is penetrated and fixed by the thimble, so that the high-quality and stable cutting of the handle opening is realized; after cutting off, the downward probing and the rising action of the thimble can realize the problem of moving out the waste material, so that the hot cutting process can be continuously carried out.

Description

Handle opening hot cutting device for single-side or double-side non-film-coated woven bag

Technical Field

The utility model belongs to the technical field of the braided bag processing technique and specifically relates to a device is cut to single face or two-sided no tectorial membrane braided bag hand mouth heat.

Background

The existing woven bags in the market are classified according to the covering film, and are mainly divided into three types, namely double-sided non-covering film, single-sided covering film and double-sided covering film, the three types of woven bags are provided with handle openings (as shown in figure 12), and the woven bags can be conveniently grabbed by utilizing the handle openings. Aiming at the double-sided film-coated bag type, the technology for punching the handle opening is mature, and the cold punching is mainly carried out on a die and an air cylinder. When the bag type with two surfaces not coated with the film and one surface coated with the film is subjected to cold punching cutting, the plastic woven flat filaments along the edge of the handle opening are scattered (scattered) because the periphery of the edge of the handle opening is not covered by the film, and the flat filaments are scattered, so that the bag type does not meet the use requirements of woven bag packaging. Therefore, for the handle openings of both bag types, the process requirements must be hot die cut. The existing hot punching method for the bag-shaped handle opening with two sides not covered with films and one side covered with films is to manually punch the handle opening in a single strip, when the handle opening is manually punched, the problem that hot cutting waste materials are not easy to separate from a cutter exists, when the waste materials are adhered to the cutter, the waste materials need to be manually removed, and then the cutting efficiency is greatly reduced; meanwhile, when the annular hot cutter is used for cutting manually, if the plastic woven bag is in an ideal flat state (namely, the woven bag is in a high-strength tensioning state and is very flat), when the annular hot cutter moves downwards to cut the plastic woven bag, synchronous cutting of the edge of the hand opening can be realized, so that the cutting process of the hand opening is realized, but due to the limitation of processing conditions, the tension degree and the flatness of the woven bag before cutting have certain defects, so that the annular hot cutter cannot realize synchronous cutting of the edge of the hand opening in the downward moving cutting process, and when one part of the hand opening is cut off, the waste at the lower part of the annular hot cutter is not kept in the tensioning state any more, so that the waste moves downwards to a certain degree along with the cutter when cutting is continued, and the cutter cannot completely cut the waste.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a single face or two-sided not tectorial membrane braided bag hand is drawn mouthful hot-cutting device, and the device is in carrying out hand and is drawn mouthful hot punching and cut the in-process, and the waste material is run through by the thimble and is fixed to realize the high quality of hand and draw mouthful, stable cutting; after cutting off, the waste material is pushed and pressed below the waste material baffle by the ejector pin, and when the ejector pin rises, the waste material baffle realizes the separation of the ejector pin and the waste material, so that the problem of waste material shifting-out is effectively solved, and the hot cutting process can be continuously carried out.

The utility model provides a technical scheme that its technical problem adopted is: a hand-held opening hot cutting device for a single-sided or double-sided non-film-coated woven bag comprises a waste pressing and positioning mechanism, a hot cutting mechanism and a hollow base; the waste pressing and positioning mechanism comprises a first fixed mounting seat, an ejector pin mounting block and an ejector pin downward-extending pushing mechanism, wherein a plurality of ejector pins are arranged at the lower part of the ejector pin mounting block, each ejector pin comprises an ejector pin cylinder and an ejector pin head, the ejector pin heads are fixedly arranged at the lower part of the ejector pin cylinders, and the ejector pin downward-extending pushing mechanism is used for realizing the sliding connection of the ejector pin mounting block and the first fixed mounting seat; the hot cutting mechanism comprises an annular heating block and a hollow annular hot cutter, the hollow annular hot cutter is vertically and fixedly sleeved in the middle of the annular heating block, and the hollow annular hot cutter is used for realizing hot cutting of a woven bag handle opening; the hollow base is positioned under the hollow annular hot cutting knife, a waste baffle is arranged on the hollow base, annular openings corresponding to the bottom of the hollow annular hot cutting knife are formed in the upper portion and the lower portion of the waste baffle, a long circular hole for enabling an ejector pin to penetrate downwards is formed in the waste baffle, and a plurality of blocking teeth for blocking waste from moving upwards are arranged on two side walls of the long circular hole; the waste pressing and positioning mechanism is sleeved in the hollow annular hot cutter, and when the lower part of the thimble cylinder is not blocked by the woven bag, the thimble can extend out of the lower part of the hollow annular hot cutter under the pushing of the thimble downward-extending pushing mechanism.

Preferably, the device further comprises a peripheral pressing and positioning mechanism, and the peripheral pressing and positioning mechanism is used for realizing the pressing and positioning of the peripheral part of the cutting part of the woven bag during cutting.

Furthermore, the device also comprises a hot cutting driving mechanism, and the hot cutting driving mechanism can drive the waste pressing and positioning mechanism and the hot cutting mechanism to sequentially perform reciprocating circular motion of descending, standing, descending and ascending motion flows.

Furthermore, the thimble downward-extending pushing mechanism comprises a first guide rod and a first pushing spring, the first guide rod is located on two sides of the lower portion of the first fixed mounting seat and is in sliding connection with the first fixed mounting seat, the lower portion of the first guide rod is fixedly connected with the upper portion of the thimble mounting block, and the first pushing spring is sleeved on the first guide rod and clamped between the first fixed mounting seat and the thimble mounting block.

Furthermore, the first fixed mounting seat is fixedly connected with a connecting plate of the hollow annular hot cutter.

The device further comprises a complete machine support, the hot cutting driving mechanism comprises a supporting base, a driving motor, a groove cam, a roller, a first driving plate and a second driving plate, the supporting base is arranged on the complete machine support, the driving motor is arranged on the supporting base, the groove cam is of a circular structure, an irregular arc-shaped groove distributed around the circle center of the groove cam is arranged on the rear side wall of the communication cam, the output shaft of the driving motor is fixedly connected with the rear side wall of the groove cam, the central axes of the output shaft and the groove cam are coaxially distributed, the roller is sleeved in the irregular arc-shaped groove, when the driving motor drives the groove cam to rotate for one circle, the roller is driven by the irregular arc-shaped groove to sequentially perform descending, static, descending and ascending motion processes, two sides of the first driving plate are sleeved on two vertical guide rails arranged on the supporting base, the roller is used for driving the first driving plate to move, the second driving plate is fixedly arranged on the lower portion of the first driving plate, and the second driving plate is fixedly connected with the connecting plate.

Furthermore, the hollow base is arranged in a groove on a supporting platform of the whole machine support, and the upper plane of the hollow base is flush with the upper plane of the supporting platform.

Furthermore, the peripheral pressing and positioning mechanism comprises an annular support rod and an annular pressure rod, the annular support rod is fixedly connected with the second transmission plate through a plurality of connecting rods, and the annular support rod is positioned on the periphery of the lower part of the hollow annular hot cutting knife; two second guide rods are fixedly arranged at the upper part of the annular pressure rod, the upper parts of the second guide rods are sleeved on the second transmission plate in a sliding manner, a second spring is sleeved on the second guide rods, and the second spring always applies an elastic force to the annular pressure rod; the annular pressure lever is positioned on the periphery of the annular support rod, and in an initial working state, the bottom plane of the annular pressure lever is lower than that of the annular support rod.

Furtherly, supporting platform's rear portion is provided with two first rollers, two first roller is used for centre gripping braided bag from top to bottom supporting platform's front portion sets up a second roller, the second roller is used for realizing the support to the braided bag bottom.

The utility model has the advantages that: the utility model adopts a mechanical automation mode to replace manual hot cutting process for woven bag handle opening, which can greatly improve cutting efficiency and stabilize cutting quality, and simultaneously, can greatly reduce manual labor intensity; in the cutting process, the hollow annular hot cutter is driven by the hot cutting driving mechanism to keep relatively static with the woven bag for a period of time, the warming process of the woven bag is realized, after the woven bag is warmed, the subsequent hot punching of the woven bag by the hollow annular hot cutter is facilitated, and the hollow annular hot cutter is also in a high-temperature state in the punching process, so that the hot melting of a plastic flat wire fracture at the periphery of the hand opening can be realized in the cutting process, the hot melting edge sealing of the whole hand opening along the edge is realized after the hot melting flat wire fracture is cooled and solidified, the dispersion phenomenon of the flat wire fracture at the periphery of the hand opening can be prevented, and the hand opening hot cutting quality is ensured; in the initial stage of the cutting process, the ejector pin head of the ejector pin penetrates through the middle of the waste, so that the waste can be prevented from moving in the cutting process, and meanwhile, the lower part of the ejector pin cylinder body is pressed against the upper surface of the waste, so that the waste is in a pressing and tensioning state, and a subsequent hollow annular hot cutter can conveniently and effectively cut a tensioned woven bag; after cutting, the waste is pushed by the ejector pin cylinder to move to the position below the waste baffle, when the ejector pin ascends, the waste is separated from the ejector pin through the blocking effect of the waste baffle, and the waste separated from the ejector pin directly falls into the waste box under the action of gravity, so that effective cleaning of the waste is realized, and smooth cutting operation is guaranteed; the hot cutting driving mechanism can drive the waste pressing and positioning mechanism and the hot cutting mechanism to sequentially perform reciprocating circular motion of descending, standing, descending and ascending motion flows, so that the intermittent and orderly operation of cutting work is ensured, the mechanical automation of hand-held hot cutting work is facilitated, and the hot cutting efficiency is greatly improved; the peripheral pressing and positioning mechanism can ensure stable pressing and positioning of the woven bag in the cutting process, so that the woven bag is always in a tensioning state, and the hand opening cutting quality can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some of the preferred embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a side view of the overall structure of the present invention;

FIG. 3 is a schematic structural view of a hollow annular hot knife;

FIG. 4 is a schematic structural view of a scrap pressing and positioning mechanism;

FIG. 5 is a schematic view of the combination of the roller and the grooved cam;

FIG. 6 is a schematic view showing the distribution of nodules in the annular heating block, the hollow annular hot knife, and the waste pressing and positioning structure;

FIG. 7 is a schematic view of the construction of a waste gate;

FIG. 8 is a schematic structural view of a hollow base;

FIG. 9 is a schematic view showing the blocking state of the needle when the woven bag is not cut during the process of warming the woven bag;

FIG. 10 is a schematic view showing the state where the ejector pins push the waste material to the lower side of the waste material baffle after the woven bag is completely cut;

FIG. 11 is an enlarged view taken at A in FIG. 1;

FIG. 12 is a schematic view of a woven bag with a handle opening;

in the figure: 11 a first fixed mounting seat, 12 thimble mounting blocks, 13 thimble downward-extending pushing mechanisms, 131 a first guide rod, 132 a first pushing spring, 14 thimbles, 21 annular heating blocks, 22 hollow annular hot cutters, 221 cutting blades, 3 hollow bases, 31 a waste material baffle, 311 long circular holes, 312 blocking teeth, 313 annular openings, 314 slit openings, 41 annular supporting rods, 411 connecting rods, 42 annular pressing rods, 421 second guide rods, 422 second springs, 51 supporting bases, 511 vertical guide rails, 52 driving motors, 53 groove cams, 531 irregular arc-shaped grooves, 54 rollers, 55 a first transmission plate, 56 a second transmission plate, 561 a connecting plate, 6 complete machine supports, 61 supporting platforms, 611 grooves, 7 a first roller shaft, 8 second roller shafts, 9 woven bags, 91 waste materials and 101 hand drawing openings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following specific embodiments and accompanying drawings 1 to 12, and it is obvious that the described embodiments are only a part of the preferred embodiments of the present invention, and not all embodiments. Those skilled in the art can make similar variations without departing from the spirit of the invention, and therefore the invention is not limited by the specific embodiments disclosed below.

The utility model provides a hand-held opening hot cutting device (as shown in figure 1) of a single-sided or double-sided non-film-coated woven bag, which comprises a waste material pressing and positioning mechanism, a hot cutting mechanism and a hollow base 3; the waste pressing and positioning mechanism comprises a first fixed mounting seat 11, an ejector pin mounting block 12 and an ejector pin downward pushing mechanism 13, wherein a plurality of ejector pins 14 are arranged at the lower part of the ejector pin mounting block 12, in practical application, the number of the ejector pins 14 can be 3-7, in the specific embodiment, the number of the ejector pins 14 is 3, each ejector pin 14 comprises an ejector pin cylinder 141 and an ejector pin head 142, the ejector pin head 142 is fixedly arranged at the lower part of the ejector pin cylinder 141, in the practical application process, the diameter of the ejector pin cylinder 141 is at least two times larger than that of the ejector pin head 142, the ejector pin cylinders 141 and the ejector pin heads 142 are made of high-temperature-resistant materials, when the waste is pressed and positioned, the ejector pin heads 142 are used for penetrating through the waste, the ejector pin heads 142 are inserted into the waste, the movement of the ejector pin heads 142 along the radial direction can be effectively prevented, and the lower end face of the ejector pin cylinders 141 pushes the waste after the waste is cut off from the woven bag; the thimble downward-extending pushing mechanism 13 is used for realizing sliding connection between the thimble mounting block 12 and the first fixed mounting seat 11, that is, under the connecting action of the thimble pushing mechanism 13, the thimble mounting block 12 can freely slide up and down relative to the first fixed mounting seat 11; the hot cutting mechanism comprises an annular heating block 21 and a hollow annular hot cutter 22, wherein the annular heating block 21 is common heating equipment in the field, heating is realized through electric energy, and the heating working principle of the annular heating block 21 is not described in detail herein; the hollow annular hot cutter 22 is vertically and fixedly sleeved in the middle of the annular heating block 21, after the annular heating block 21 continuously generates heat, the hollow annular hot cutter 22 positioned in the annular heating block is heated through heat transfer, in practical application, the lower end of the hollow annular hot cutter 22 is cut off, a circumferential cutting blade 221 is arranged on the outer edge of the lower part of the hollow annular hot cutter 22, and the hollow annular hot cutter 22 is used for cutting the handle opening 101, so that the shape of the lower part of the hollow annular hot cutter 22 can be processed and manufactured according to the size of the handle opening 101, and the required size of the handle opening 101 can be cut; the hollow base 3 is located under the hollow annular hot cutter 22, a waste baffle 31 is arranged on the hollow base 3, an annular opening 313 corresponding to the bottom of the hollow annular hot cutter 22 is arranged above and below the waste baffle 31, and due to the existence of the annular opening 313, the hollow annular hot cutter 22 can conduct suspended cutting on the woven bag 9, namely, the woven bag 9 is tensioned and attached to the upper plane of the hollow base 3, and an annular opening 313 is arranged between the woven bag 9 and the waste baffle 31, so that the lower portion of the woven bag 9 is in a suspended state. When the cutting blade 221 of the hollow annular hot cutter 22 cuts the woven bag, the middle part of the waste material is fixed by the ejector pin 14, so that the hollow annular hot cutter 22 realizes smooth cutting of the woven bag in the pressing and cutting process, and the hollow annular hot cutter 22 performs suspended cutting, so that the cutting wear degree is low, and the service life of the hollow annular hot cutter 22 can be greatly prolonged. A long circular hole 311 for the thimble 14 to penetrate downwards is formed in the waste baffle 31, and a plurality of blocking teeth 312 for blocking the waste 91 from moving upwards are arranged on two side walls of the long circular hole 311; the waste pressing and positioning mechanism is sleeved in the hollow annular hot-cutting knife 22, when the lower part of the thimble cylinder 141 is not blocked by the woven bag 9, the thimble 14 can extend out of the lower part of the hollow annular hot-cutting knife 22 under the pushing of the thimble downward-extending pushing mechanism 13, that is, in the initial cutting stage, when the cutting blade 221 of the hollow annular hot-cutting knife 22 is not in contact with the woven bag 9, at this time, the thimble head 142 penetrates through the woven bag 9, and meanwhile, under the tensioning and blocking action of the woven bag 9, the thimble downward-extending pushing mechanism 13 pushes the lower end face of the thimble cylinder 141 to be tightly attached to the upper plane of the woven bag 9 (as shown in fig. 9); after the hollow annular hot cutter 22 continues to move downwards to cut the woven bag 9, the waste material 91 is separated from the woven bag 9 at the moment, so that the waste material 91 loses the blocking and limiting effect on the thimble column body 141, at the moment, the thimble column body 141 continues to move downwards relative to the hollow annular hot cutter 22 under the pushing of the thimble downward-extending pushing mechanism 13, and in the downward movement process of the thimble column body 141, the thimble column body drives the waste material 91 to synchronously pass through the long circular hole 311 to move to the position below the waste material baffle plate 31 (as shown in fig. 10; because the waste material 91 is a part of the woven bag 9, the pressure deformability is strong, and the waste material 91 can be deformed to penetrate through a gap 314 between two opposite retaining teeth 312 in the downward movement and jacking process); when the thimble 14 moves upwards along with the hollow annular hot cutter 22, the blocking action of the blocking tooth 312 on the waste material 91 can separate the waste material 91 from the thimble head 142, so that the waste material 91 is left under the waste material baffle 31, and the waste material 91 can fall into the corresponding collecting box under the action of gravity, thereby realizing the collection of the waste material 91. Utilize above-mentioned waste material to press and put positioning mechanism, hot cutting mechanism, hollow base 3's structure, can realize waste material 91 effective positioning before being cut to be convenient for realize its subsequent effective cutting, and after the cutting is accomplished, then can realize effectively removing of waste material 91 and collect, thereby be convenient for improve the processingquality and the machining efficiency of hand opening 101.

On the basis of the above embodiment, in the cutting process, in order to facilitate the realization of the tensioning state of the peripheral woven bag 9 at the cutting position, the hot cutting mechanism further comprises a peripheral pressing positioning mechanism; further, in order to facilitate the realization of the automation of the cutting machine of the handle port 101, the thermal cutting mechanism further comprises a thermal cutting driving mechanism, the thermal cutting driving mechanism can drive the waste pressing positioning mechanism and the thermal cutting mechanism to sequentially perform reciprocating circular motion of descending, standing, descending and ascending motion flows, when the thermal cutting mechanism is in a static state, at the moment, the cutting blade 221 of the hollow annular thermal cutter 22 is not in contact with the woven bag 9, in a static time period, the hollow annular thermal cutter 22 realizes the warming process of the woven bag 9 below the hollow annular thermal cutter 22, and after the static state is finished, the hollow annular thermal cutter 22 continuously moves downwards, and the cutting of the waste 91 is realized in the downward moving process.

On the basis of the above embodiment, the specific implementation manner of the hot cutting driving mechanism is as follows: the device also comprises a complete machine bracket 6, wherein the hot cutting driving mechanism comprises a supporting base 51, a driving motor 52, a groove cam 53, a roller 54, a first driving plate 55 and a second driving plate 56, the supporting base 51 is arranged on the complete machine bracket 6, the driving motor 52 is arranged on the supporting base 51, and in order to realize accurate control of the action of the hot cutting driving mechanism, the driving motor 52 is a servo motor; the groove cam 53 is in a circular structure, an irregular arc-shaped groove 531 distributed around the center of the groove cam 53 is arranged on the rear side wall of the communication cam 53, an output shaft of the driving motor 52 is fixedly connected with the rear side wall of the groove cam 53, the output shaft and the central axis of the groove cam 53 are coaxially distributed, the groove cam 53 can be driven to stably rotate by the driving motor 52, the roller 54 is sleeved in the irregular arc-shaped groove 531, the roller 54 is clamped in the irregular arc-shaped groove, when the groove cam 53 rotates, the roller 54 is driven by the irregular arc-shaped groove 531 to move, in the specific embodiment, in order to enable the thermal cutting driving mechanism to drive the hollow annular thermal cutting knife 22 to circularly move downwards, statically, downwards and upwards, when the driving motor 52 drives the groove cam 53 to rotate for one circle, the roller 54 is driven by the irregular arc-shaped groove 531 to sequentially move downwards, statically, downwards and upwards, the two sides of the first driving plate 55 are sleeved on two vertical guide rails 511, the roller 54 is used for driving the roller 54 to move synchronously with the first driving plate 55, and the first driving plate 55 is connected with the first driving plate 55; the second transmission plate 56 is fixedly provided at a lower portion of the first transmission plate 55.

Further, on the basis of the above embodiment, the specific implementation manner of the thimble downward-extending pushing mechanism 13 is as follows: the thimble downward-extending pushing mechanism 13 includes a first guide rod 131 and a first pushing spring 132, two first guide rods 131 are located at two sides of the lower portion of the first fixed mounting seat 11, and the first guide rod 131 is slidably connected with the first fixed mounting seat 11, the lower portion of the first guide rod 131 is fixedly connected with the upper portion of the thimble mounting block 12, the first pushing spring 132 is sleeved on the first guide rod 131 and clamped between the first fixed mounting seat 11 and the thimble mounting block 12, during the synchronous downward movement process of the first fixed mounting seat 11 and the thimble mounting block 12, after the thimble mounting block 12 is blocked by the woven bag 9, the thimble mounting block stops moving downward, at this time, along with the continuous downward movement of the first fixed mounting seat 11, the upper end of the first guide rod 131 moves upward relative to the first fixed mounting seat 11, and the first pushing spring 132 is compressed. After the woven bag 9 is cut, the thimble mounting block 12 is released from the blocking, at this time, the thimble mounting block 12 continues to move downwards under the pushing of the first pushing spring 132, and the process that the waste material 91 moves to the lower part of the waste material baffle 31 is completed in the process of moving downwards, so that the waste material 91 is removed; in order to realize the fixed connection between the hollow annular cutting knife 22 and the first fixed mounting seat 11, the first fixed mounting seat 11 and the hollow annular hot cutting knife 22 are fixedly connected by a connecting plate 561 uniformly, and further, in order to make the second transmission plate 56 drive the hollow annular hot cutting knife 22 to move synchronously, the second transmission plate 56 is fixedly connected with the connecting plate 561.

Further, on the basis of the above embodiment, the specific implementation manner of the peripheral pressing and positioning mechanism is as follows: the peripheral pressing and positioning mechanism comprises an annular support rod 41 and an annular pressure rod 42, the annular support rod 41 is fixedly connected with the second transmission plate 56 through a plurality of connecting rods 411, and the annular support rod 41 is positioned on the periphery of the lower part of the hollow annular hot cutting knife 22; two second guide rods 421 are fixedly arranged at the upper part of the annular pressing rod 42, the upper parts of the second guide rods 421 are slidably sleeved on the second transmission plate 56, a second spring 422 is sleeved on the second guide rods 421, and the second spring 422 always applies an elastic force to the annular pressing rod 42; annular depression bar 42 is located annular vaulting pole 41's periphery, and under initial operating condition, annular depression bar 42's baseplane is less than annular vaulting pole 41's baseplane, drive annular vaulting pole 41 and annular depression bar 42 downstream in-process promptly at second driving plate 56, annular depression bar 42 contacts with braided bag 9 earlier to realize that the peripheral braided bag in cutting department great range first presses and puts the location, along with the continuation decline of second driving plate 56 makes annular vaulting pole 41 realize that the peripheral braided bag in cutting department less range's second pressure puts the location, press the in-process of putting braided bag 9 at annular vaulting pole 41, cavity annular hot knife 22 accomplishes the cutting process that hand was drawn mouth 101.

Before the hand opening 101 is cut, a plane tensioning state is kept for the woven bag 9, the hollow base 3 is arranged in a groove 611 on a supporting platform 61 of the whole machine support 6, the upper plane of the hollow base 3 is flush with the upper plane of the supporting platform 61, the supporting platform 61 is used for supporting the woven bag, the effective plane of the woven bag 9 is unfolded, further, the plane unfolding state is kept for the woven bag stably, two first roller shafts 7 are arranged at the rear portion of the supporting platform 61, the two first roller shafts 7 are used for clamping the woven bag 9 from top to bottom, a second roller shaft 8 is arranged at the front portion of the supporting platform 61, and the second roller shaft 8 is used for supporting the bottom of the woven bag 9.

In the initial cutting state, the hollow annular hot cutter 22, the thimble 14, the annular stay rod 41 and the annular press rod 42 are all kept at a high position under the driving of the roller 54, after the groove cam 53 starts to rotate, the hollow annular hot cutter 22, the thimble 14, the annular stay rod 41 and the annular press rod 42 all synchronously perform descending action in the first stage, after the descending action in the first stage is completed, the annular press rod 42 realizes pressing and fixing of the woven bag 9, meanwhile, the thimble head 142 of the thimble 14 completes penetrating through the woven bag 9, and the lower end face of the thimble column 141 is pressed against the woven bag; after the descending motion in the first stage is moved to the right position, at this time, in the continuous rotating process of the groove cam 53, the hollow annular hot cutter 22, the thimble 14 and the annular stay bar 41 keep still, and in the still process, the hollow annular hot cutter 22 realizes the warming process of the woven bag 9; with the continuous rotation of the groove cam 53, the roller 54 continues to perform the descending action of the second stage (at this time, the warming process is finished), in the descending process of the second stage, the hollow annular hot cutter 22, the thimble 14 and the annular stay rod 41 continue to move downwards, after the hollow annular hot cutter 22 moves downwards to a position, the hollow annular hot cutter 22 realizes the cutting of the woven bag 9, in the cutting process, the annular stay rod 41 realizes the pressing and positioning of the woven bag 9, and after the cutting is finished, the thimble 14 realizes the pushing action of the waste materials; with the continuous rotation of the groove cam 53, the second-stage descending action of the roller 54 is finished, then the roller 54 performs ascending action, during the ascending action, the waste baffle 31 stops the waste, so as to clean the waste 91, and when the roller 54 moves to the highest position, the hollow annular hot cutter 22, the ejector pin 14, the annular support rod 41 and the annular pressure rod 42 all return to the initial working positions; when the next woven bag 9 comes, the above-mentioned working procedure is repeated, thereby realizing the cutting process of the next handle port 101.

In practical application, in order to facilitate the grooved cam 53 to drive the roller 54 to perform descending, static, descending and ascending motions during rotation, the irregular arc-shaped groove is made to include a first descending arc-shaped section, a static arc-shaped section, a second descending arc-shaped section and an ascending arc-shaped section, during the continuous rotation of the grooved cam 53, when the roller 54 enters the first descending arc-shaped section, the roller 54 performs a first-stage descending motion, and when the roller 54 enters the static arc-shaped section, the roller 54 keeps a vertical static motion relative to the grooved cam 53; when the roller 54 enters the second descending arc, the roller 54 performs a second descending motion, and when the roller 54 enters the ascending arc, the roller 54 performs an ascending motion.

In the actual work process, the available photoelectric detection switch in the highest position of gyro wheel 54 advances line location and detects, in the application, the photoelectric detection switch sets up on supporting base 51, set up a detection piece on driving motor 52's output shaft, along with the rotation of slot cam 53, when slot cam 53 drove gyro wheel 54 and moved to the highest position, at this moment, the photoelectric detection switch detects the detection piece just, after the controller received photoelectric detection switch's detection signal, stop driving motor 52's rotation, realize then that gyro wheel 54 stops at the highest.

In the present invention, "left" and "right" are relative positions used for describing positional relationships, and therefore, cannot be interpreted as limiting the protection range as absolute positions.

In addition to the technical features described in the specification, the technology is known to those skilled in the art.

The above description is provided for the preferred embodiments and examples of the present invention with reference to the accompanying drawings, but the present invention is not limited to the above embodiments and examples, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit of the present invention, and these modifications and variations should be construed as the protection scope of the present invention.

Claims (9)

1. A hand-held opening hot cutting device for a single-sided or double-sided non-film-coated woven bag is characterized by comprising a waste pressing and positioning mechanism, a hot cutting mechanism and a hollow base; the waste pressing and positioning mechanism comprises a first fixed mounting seat, an ejector pin mounting block and an ejector pin downward-extending pushing mechanism, wherein a plurality of ejector pins are arranged at the lower part of the ejector pin mounting block, each ejector pin comprises an ejector pin cylinder and an ejector pin head, the ejector pin heads are fixedly arranged at the lower part of the ejector pin cylinders, and the ejector pin downward-extending pushing mechanism is used for realizing the sliding connection of the ejector pin mounting block and the first fixed mounting seat; the hot cutting mechanism comprises an annular heating block and a hollow annular hot cutter, the hollow annular hot cutter is vertically and fixedly sleeved in the middle of the annular heating block, and the hollow annular hot cutter is used for realizing hot cutting of a woven bag handle opening; the hollow base is positioned under the hollow annular hot cutting knife, a waste baffle is arranged on the hollow base, annular openings corresponding to the bottom of the hollow annular hot cutting knife are formed in the upper portion and the lower portion of the waste baffle, a long circular hole for enabling an ejector pin to penetrate downwards is formed in the waste baffle, and a plurality of blocking teeth for blocking waste from moving upwards are arranged on two side walls of the long circular hole; the waste pressing and positioning mechanism is sleeved in the hollow annular hot cutter, and when the lower part of the thimble cylinder is not blocked by the woven bag, the thimble can extend out of the lower part of the hollow annular hot cutter under the pushing of the thimble downward-extending pushing mechanism.

2. The hand-held port hot cutting device for the single-sided or double-sided non-film-coated woven bag as claimed in claim 1, wherein the device further comprises a peripheral pressing and positioning mechanism, and the peripheral pressing and positioning mechanism is used for realizing the pressing and positioning of the peripheral part of the cut part of the woven bag during cutting.

3. The hand-held mouth hot-cutting device for the single-sided or double-sided non-film coated woven bag as claimed in claim 2, wherein the device further comprises a hot-cutting driving mechanism, and the hot-cutting driving mechanism can drive the waste pressing and positioning mechanism and the hot-cutting mechanism to sequentially perform reciprocating circular motion of descending, standing, descending and ascending motion flows.

4. The hand-pulling port hot cutting device for the single-sided or double-sided non-coated woven bag as claimed in claim 3, wherein the push pin downward-extending pushing mechanism comprises first guide rods and first pushing springs, the two first guide rods are located on two sides of the lower portion of the first fixed mounting seat and are in sliding connection with the first fixed mounting seat, the lower portion of the first guide rod is fixedly connected with the upper portion of the push pin mounting block, and the first pushing springs are sleeved on the first guide rods and clamped between the first fixed mounting seat and the push pin mounting block.

5. The hand-opening hot cutting device for the single-sided or double-sided non-film-coated woven bag as claimed in claim 4, wherein the first fixed mounting seat is fixedly connected with a hollow annular hot cutting knife through a connecting plate.

6. The hand-operated port hot cutting device for the single-sided or double-sided non-film-coated woven bag as claimed in claim 5, further comprising a whole machine support, wherein the hot cutting driving mechanism comprises a supporting base, a driving motor, a groove cam, a roller, a first driving plate and a second driving plate, the supporting base is arranged on the whole machine support, the driving motor is arranged on the supporting base, the groove cam is of a circular structure, an irregular arc-shaped groove distributed around the center of the groove cam is arranged on the rear side wall of the groove cam, an output shaft of the driving motor is fixedly connected with the rear side wall of the groove cam, the output shaft and the central axis of the groove cam are coaxially distributed, the roller is sleeved in the irregular arc-shaped groove, when the driving motor drives the groove cam to rotate for one circle, the roller is driven by the irregular arc-shaped groove to sequentially perform descending, static, descending and ascending motion processes, two sides of the first driving plate are sleeved on two vertical guide rails arranged on the supporting base, the first driving plate is used for driving the first driving plate to move, the second driving plate is fixedly arranged on the second driving plate, and the lower portion of the second driving plate is connected with the connecting plate.

7. The hand-opening and hot-cutting device for the single-sided or double-sided non-film woven bag as claimed in claim 6, wherein the hollow base is arranged in a groove on a supporting platform of the complete machine bracket, and the upper plane of the hollow base is flush with the upper plane of the supporting platform.

8. The hand-opening hot cutting device for the single-sided or double-sided non-film-coated woven bag as claimed in claim 6, wherein the peripheral pressing and positioning mechanism comprises a ring-shaped stay bar and a ring-shaped press bar, the ring-shaped stay bar is fixedly connected with the second transmission plate through a plurality of connecting rods, and the ring-shaped stay bar is positioned at the periphery of the lower part of the hollow ring-shaped hot cutting knife; two second guide rods are fixedly arranged at the upper part of the annular pressure rod, the upper parts of the second guide rods are sleeved on the second transmission plate in a sliding manner, a second spring is sleeved on the second guide rods, and the second spring always applies an elastic force to the annular pressure rod; the annular pressure lever is positioned on the periphery of the annular support rod, and in an initial working state, the bottom plane of the annular pressure lever is lower than that of the annular support rod.

9. The hand-held port hot cutting device for the single-sided or double-sided non-coated woven bag as claimed in claim 7, wherein two first roller shafts are arranged at the rear part of the supporting platform and used for clamping the woven bag up and down, and a second roller shaft is arranged at the front part of the supporting platform and used for supporting the bottom of the woven bag.

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