CN211869889U

CN211869889U - Needle punching mechanism of film covering machine

Info

Publication number: CN211869889U
Application number: CN202020318203.6U
Authority: CN
Inventors: 厉勇; 章嘉麟
Original assignee: Zhejiang Dingye Machinery Co Ltd
Current assignee: Zhejiang Dingye Machinery Co Ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-11-06
Anticipated expiration: 2030-03-13

Abstract

The utility model discloses a looper eye mechanism of mantle machine, unwinding device is including the roller of placing that is used for placing whole book membrane that sets gradually on it, a pinhole wheel for being used for to the membrane to make a needle eye, drive by a actuating mechanism and carry out the main drive roller of initiative around the membrane, and be used for around the driving roller of establishing the membrane, main drive roller is connected first actuating mechanism and is used for providing the membrane that roller and pinhole wheel department were placed in the initiative power pulling, but the wobbling setting of driving roller is on the setting frame, trigger sensor when the driving roller is taken the rotatory certain angle by the membrane pulling, the first actuating mechanism of sensor feedback signal order starts the film feeding. The utility model discloses a product only needs to drag the film of driving roller department when pushing away the membrane and advancing, treats that the membrane of placing roller and pinhole wheel department after actuating mechanism starts and goes out the membrane by actuating mechanism drive to the propelling movement work of membrane machine completion membrane can also be suitable for to the messenger lighter product, perhaps can drive thicker heavier film and pack, satisfies the different packing demands of producer.

Description

Needle punching mechanism of film covering machine

Technical Field

The utility model relates to a vacuum packaging field, more specifically the eye mechanism of injecing that says so relates to a covering membrane machine.

Background

The covering film machine is mainly used for packaging, the product to be packaged is covered with the covering film, cut and packaged in a sealing mode, and then thermal shrinkage packaging is carried out after the sealing and cutting, namely the subsequent process of the covering film machine is generally connected with a thermal shrinkage machine for matched use, so that the object can achieve a perfect packaging effect, and the later-stage moving and the transportation of people are facilitated.

The film covering machine adopts two sections of conveying belts for input and output, a sealing and cutting mechanism is arranged between the two sections of conveying belts, the packaging film is arranged into an upper roll and a lower roll, the upper film and the lower film are conveyed to the position of the sealing and cutting mechanism through an unwinding mechanism, the end parts of the upper film and the lower film are sealed and cut and connected in the previous step, when a product reaches the sealing and cutting mechanism from the conveying belt at the input side, the product continuously advances to abut against the films and reaches the conveying belt at the output side through the sealing and cutting mechanism, a sensor transmits a signal to stop the film at a proper position, then the sealing and cutting structure seals and cuts the films at the rear part, the upper film and the lower film are sealed and cut into a whole and are cut from the middle part, the film covering is finished on the product, and the upper film.

The last unwinding mechanism of current cover membrane machine can set up the wheel of punching the needle eye according to the needs of packing, and to the film punch the needle eye be for the gas that can exhaust smoothly when the epilogue thermal contraction avoids the middle part position can not discharge and the fold appears after the film thermal contraction to influence the quality of thermal contraction. The upper unwinding mechanism is provided with a driving mechanism for driving a roll shaft for placing the film to rotate so as to actively discharge the film, but the upper unwinding mechanism is sensed by a sensor and then starts the driving mechanism when the film is pulled for a certain distance (when a driving roller is pulled to rotate for a certain angle), so that when a product with light quality is processed or the packaged film is thicker and heavier, if the product cannot push the film at the position of the sealing and cutting mechanism for a certain distance, the driving mechanism of the upper unwinding mechanism cannot actively work, and after the needle punching wheel is arranged, the force for driving the film by the product is larger so as to further overcome the weight of the needle punching wheel, so that the existing film sleeving machine cannot process the product with light quality, and the application range of the film sleeving machine is influenced; therefore, some film sleeving machines make a trade-off and abandon the setting of a needle punching wheel.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a cover eye mechanism of injecing of membrane machine, its reasonable actuating mechanism and the position of pinhole wheel on last unwinding mechanism of arranging is favorable to also realizing good membrane of sending under the circumstances of guaranteeing the eye function of injecing.

The utility model provides a following technical scheme: the utility model provides a looper eye mechanism of mantle machine, including the arrangement frame and set up in the last unwinding device on arrangement frame upper portion, go up unwinding device including the roller of placing that is used for placing whole roll of membrane, a pinhole wheel that is used for making the needle eye to the membrane, and be used for around the driving roller who establishes the membrane, still including main drive roller, place the roller, the pinhole wheel, main drive roller, the driving roller sets gradually and is used for around establishing the membrane in proper order, main drive roller is connected first actuating mechanism and is used for providing the membrane that the roller and pinhole wheel department were placed in the initiative power pulling, the wobbling of driving roller sets up on the arrangement frame, trigger sensor when the driving roller is rotated certain angle by the membrane pulling, the first actuating mechanism of sensor feedback signal order starts the film feeding.

As an improvement, the arrangement frame is provided with an auxiliary driving roller which is in tangential fit with the main driving roller, the auxiliary driving roller is driven by the main driving roller to rotate, and the film passes through the main driving roller and the auxiliary driving roller to be transmitted.

As an improvement, the pinhole wheels are arranged in a plurality of groups in sequence on a first rotating shaft, a second rotating shaft is further arranged on the arrangement frame, a plurality of matching wheels are arranged on the second rotating shaft, the matching wheels and the pinhole wheels are arranged in a one-to-one correspondence and are in tangent matching, annular grooves for avoiding needles on the pinhole wheels are arranged on the matching wheels, and films pass through the pinhole wheels and the matching wheels to be conveyed in a transmission mode.

As an improvement, two ends of the transmission roller are respectively arranged on the arrangement frame in a swinging mode through swing rods, the swing rods swing around a third rotating shaft, sensing blocks are arranged on the third rotating shaft, sensors are arranged on the side edges of the sensing blocks, protrusions or grooves used for being sensed by the sensors are formed in the sensing blocks, and when the sensing blocks rotate to the protrusions or the grooves and correspond to the sensors, feedback signals of the sensors are triggered.

As an improvement, the film-drawing mechanism further comprises an upper sealing and cutting part which can be movably arranged on the upper portion of the arrangement frame up and down, a lower sealing and cutting part which is fixedly arranged on the lower portion of the arrangement frame, feeding mechanisms which are arranged on two sides of the lower sealing and cutting part, and a lower rolling device which is arranged below the feeding mechanisms, wherein a film-drawing roller is arranged between the lower sealing and cutting part and the feeding mechanism on one side of the feeding mechanism, the film-drawing roller is driven by power to rotate, a film at the position of the lower rolling device bypasses between the feeding mechanism on one side of the feeding mechanism and the film-drawing roller to the position of the lower sealing and cutting part, and the film-drawing roller is used for driving a product.

As an improvement, the film drawing roller and the feeding mechanism at the feeding side are driven by a common second driving mechanism.

As an improvement, feeding mechanism includes the conveyer belt and is used for around establishing a plurality of roller of conveyer belt on one side of the feeding, and a plurality of roller are rotated by motor drive, and a roller that is close to the drawing membrane roller sets up the gear train with drawing the membrane roller in the side cooperation, and this gear train carries out the transmission and makes the roller and draw the membrane roller to link.

As an improvement, the height of the upper end of the film drawing roller is consistent with that of the upper supporting surface of the conveying belt.

As an improvement, the height of the upper end of the lower seal cutting piece is consistent with that of the upper end of the film drawing roller.

As an improvement, a plurality of upper guide shafts for the upper film to pass around are arranged in the height direction between the upper unreeling device and the film drawing roller, the upper guide shafts are rotatably arranged on a movable frame, and the movable frame is movably arranged on the arrangement frame up and down through a screw rod sliding block mechanism; a plurality of lower guide shafts for the lower film to pass around are arranged in the height direction between the lower film-rolling device and the film-drawing roller; the lower guide shaft is rotatably arranged on a fixed frame, and the fixed frame is arranged on the arrangement frame through a fastener.

The utility model has the advantages that: the film discharging device is different from the original film discharging device in that the driving mechanism is arranged at the position of the placing roller to drive the film, when the product pushes the film to advance, the film at the positions of the driving roller and the pinhole wheel needs to be pulled to advance, the product needs to have larger weight, and the product with lighter weight cannot be processed; the utility model discloses main drive roller setting with actuating mechanism and drive membrane is in the epilogue position, place roller and pinhole wheel promptly after, the product only needs to drag the film of driving roller department when pushing away the membrane and advancing, the membrane of placing roller and pinhole wheel department after treating actuating mechanism starts is gone out the membrane by actuating mechanism drive, the stability of the eye of strikeing has been improved on the one hand, the required power of product push film has been alleviateed on the one hand, thereby the propelling movement work of messenger lighter product also can be suitable for the complete membrane of cover membrane machine, perhaps can drive thicker heavier film and pack, satisfy the different packing demands of producer, and needn't purchase many money cover membrane machines, and the cost is reduced.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure and a partial enlarged view of an upper unwinding device of the film covering machine of the present invention.

Fig. 2 is a schematic view of a three-dimensional structure of the film covering machine of the present invention.

Fig. 3 is an enlarged view at M in fig. 2.

Fig. 4 is a schematic view of a three-dimensional structure and a partial enlarged view of the film covering machine of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1, 2, 3 and 4, a specific embodiment of the needle punching mechanism of the film covering machine of the present invention is shown. This embodiment is including setting up frame 1 and setting up in last unwinding device 5 on setting up frame 1 upper portion, it is including the roller 51 of placing that is used for placing whole roll of membrane to go up unwinding device 5, a pinhole wheel 52 for being used for making the pinhole to the membrane, and be used for around the driving roller 53 who establishes the membrane, still including main drive roller 54, place roller 51, pinhole wheel 52, main drive roller 54, driving roller 53 sets gradually and is used for around establishing the membrane in proper order, main drive roller 54 is connected first actuating mechanism 55 and is used for providing the membrane that main power pulling placed roller 51 and pinhole wheel 52 department, but the wobbling setting of driving roller 53 is on setting up frame 1, trigger sensor 56 when driving roller 53 envelope pulling is rotatory certain angle, sensor 56 feedback signal order first actuating mechanism 55 start the film feeding.

When the utility model is used, the film covering machine comprises an upper sealing cutting part 2 which can be movably arranged on the upper part of the arrangement frame 1 up and down, a lower sealing cutting part 3 which is fixedly arranged on the lower part of the arrangement frame 1, feeding mechanisms 4 which are arranged on two sides of the lower sealing cutting part 3, and a lower coiling device 6 which is arranged below the feeding mechanisms 4, wherein the upper uncoiling device 5 and the lower coiling device 6 are respectively arranged above and below one side of the feeding material; the lower film passes through the space between the feeding mechanism 4 at the feeding side and the lower sealing and cutting piece 3 upwards, then extends to the lower sealing and cutting piece 3, the upper film is pulled downwards from the side edge (the upper side corresponding to the lower film) of the upper sealing and cutting piece 2 and is connected with the lower film in a heat sealing way (the rear end of the sealing and cutting upper and lower films is the front end of the upper and lower films when the upper product is heat sealed); when a product is conveyed to the lower sealing and cutting part 3, the product can push upper and lower films to move together, then a driving roller 53 at the upper unreeling device 5 is pulled to swing, the sensor 56 senses the product when the product reaches a certain angle, then the sensor 56 is triggered to feed back a signal to a first driving mechanism 55, the started first driving mechanism 55 actively feeds the films, the films at the preorder placing roller 51 and the pinhole wheel 52 are conveyed backwards for a section and then stop working, and the films are continuously conveyed for a section when the films are triggered next time; the fed film lengthens the film at the driving roller 53, and the driving roller 53 is restored by an existing restoring structure such as an elastic member or self-weight. The two matched rollers 51 are arranged, the whole roll of film is placed in the middle, and the film discharging is realized when the whole roll of film rolls. The product of the utility model only needs to pull the film at the position of the driving roller 53 to advance when pushing the film to advance, thus reducing the force required by the film pushing of the product, so that the lighter product can be suitable for the film covering machine to finish the pushing work of the film, or the thicker and heavier film can be driven to package, thus meeting the different packaging requirements of producers; after the first driving mechanism 55 is started, the film at the positions of the placing roller 51 and the needle eye wheel 52 is pulled out of the film, and the stability of punching the needle eye is higher in the mode, so that the needle eye can be guaranteed to be punched on the film in an aligned mode.

As a modified specific embodiment, the arrangement frame 1 is provided with a secondary driving roller 541 which is tangentially matched with the main driving roller 54, the secondary driving roller 541 is driven by the main driving roller 54 to rotate, and the film passes through between the main driving roller 54 and the secondary driving roller 541 for transmission conveying.

As shown in fig. 1, in the embodiment, the film can be positioned by being sandwiched between the main driving roller 54 and the sub-driving roller 541 and the film can be driven to be drawn out while rotating; the first driving mechanism 55 may be implemented by a motor, and drives the main driving roller 54 through a rack and pinion structure, and is turned on by a control mechanism according to a feedback signal of the sensor 56, and is stopped after a rated time, thereby feeding a rated length of film. The main driving roller 54 is a roller for main output power, and when the sub driving roller 541 is not provided, the positioning of the film and the driving of the film can be realized by winding the film with other rollers; the auxiliary driving roller 541 is added to further improve the effects of stabilizing the film nip positioning and the rated feeding. The sub-driving roller 541 may be provided as a debuggable structure that can be operated away from the main driving roller 54 to form a space for initially passing through the film and then resetting the nipping film.

As an improved specific embodiment, the eyelet wheels 52 are provided in groups and sequentially arranged on a first rotating shaft 521, the arrangement frame 1 is further provided with a second rotating shaft 522, the second rotating shaft 522 is provided with a plurality of engaging wheels 523, the engaging wheels 523 and the eyelet wheels 52 are arranged in a one-to-one correspondence and are in tangent engagement, the engaging wheels 523 are provided with annular grooves for avoiding the needles on the eyelet wheels 52, and the film passes through between the eyelet wheels 52 and the engaging wheels 523 for transmission and conveying.

As shown in fig. 1, the first rotating shaft 521 and the second rotating shaft 522 are arranged in parallel, a plurality of pinhole wheels 52 are uniformly arranged in the axial direction of the first rotating shaft 521, the second rotating shaft 522 is correspondingly provided with a matching wheel 523 which is matched with the first rotating shaft and clamps the membrane, when the membrane is pulled, the pinhole wheels 52 and the matching wheel 523 synchronously rotate, and the needles on the pinhole wheels 52 open air holes on the membrane; the annular groove is used for abdicating the needle, and the film is pressed by the entity at the two sides and the side edge of the needle eye wheel 52, so that the needle stably pierces the film during rotation.

As a modified embodiment, both ends of the driving roller 53 are respectively swingably provided on the arrangement rack 1 through a swing lever 531, the swing lever 531 swings around a third rotating shaft 532, a sensing block 533 is provided on the third rotating shaft 532, the sensor 56 is provided on a side edge of the sensing block 533, and the sensing block 533 has a protrusion or a groove 534 for being sensed by the sensor 56, and when the sensing block 533 rotates to the protrusion or the groove 534 corresponding to the sensor 56, the sensor 56 is triggered to feed back a signal.

As shown in fig. 1, the sensing block 533 arranged on the third rotating shaft 532 can be used in pair with the correspondingly arranged sensor 56, and the arrangement of the sensing block on the side does not affect the normal film running; the sensor 56 may preferably be a proximity switch or other prior art sensor type selected to sense the arrival of an object or a change in distance; the sensor 56 feeds back a signal when sensing the corresponding protrusion or groove 534, wherein the driving roller 53 is pulled by the film to rotate by a certain angle, which can be set according to the length requirement of the film running and the length of the swing link 531 in the prior art, and can not be specifically limited to what angle. In specific implementation, the driving roller 53 can be matched with other fixed rollers to wind the film, so that the film can better move along the swinging direction of the driving roller 53, and the driving roller 53 is driven to swing when the film is pulled.

As a modified embodiment, a film drawing roller 7 is arranged between the lower sealing and cutting piece 3 and the feeding mechanism 4 on the feeding side, the film drawing roller 7 is driven by power to rotate, the film at the lower coiling device 6 bypasses between the feeding mechanism 4 on the feeding side and the film drawing roller 7 to the lower sealing and cutting piece 3, and the film drawing roller 7 is used for driving the product reaching the film drawing roller 7 to move together with the film pressed by the film drawing roller 7.

As shown in fig. 2, 3 and 4, a film drawing roller 7 is additionally arranged on the basis of the original structure, a lower film upwards passes through a space between a feeding mechanism 4 on the feeding side and the film drawing roller 7, then extends downwards to seal and cut a piece 3 around the film drawing roller 7, when a product is conveyed to the film drawing roller 7 from the feeding mechanism 4 on the feeding side, the product is pressed on the film drawing roller 7, the pressed lower film and the product can be driven to move together by the film drawing roller 7, the film drawing roller 7 provides good active driving power for the film, the driving rollers 53 on the upper unwinding device 5 and the lower unwinding device 6 can be assisted to discharge the film, the active film drawing of the film drawing roller 7 provides power for the upper film and the lower film to discharge the film by overcoming the weight of the driving rollers 53 on the upper unwinding device 5 and the lower unwinding device 6, the film can be driven to move forwards to pass through the lower seal and cut piece 3 to the feeding mechanism 4 on the discharging side when the product is light, and is beneficial to the processing of a film machine with lighter processing quality, and drive thicker heavier film, increase the packing kind, satisfy producer's abundantly packing demand day by day, and needn't purchase the cover membrane machine of many money to adapt to the product specification, reduce cost.

As a modified embodiment, the draw film roll 7 and the feed-side feed mechanism 4 are driven by a common second drive mechanism.

Under the above embodiment, it is not necessary to additionally increase a driving mechanism, and the second driving mechanism of the feeding mechanism 4 on the feeding side can directly drive the film drawing roller 7 to work after being connected through the transmission mechanism, so that the common action of the feeding mechanism 4 on the feeding side and the film drawing roller 7 can be realized, the conveying requirement of the product on the feeding side is met, the synchronous driving stability is good, and the driving mechanism and the control component are not necessary to be additionally increased by adding extra cost.

As an improved specific embodiment, the feeding mechanism 4 on the feeding side comprises a conveying belt 41 and a plurality of roller shafts 42 for winding the conveying belt 41, the plurality of roller shafts 42 are driven by a motor to rotate, a roller shaft 42 close to the film drawing roller 7 and the film drawing roller 7 are provided with a gear set 8 in a side edge matching manner, and the gear set 8 is used for driving to enable the roller shafts 42 and the film drawing roller 7 to be linked.

As shown in fig. 3 and 4, the feeding mechanism 4 conveys the product by using a conveying belt 41 and a roller 42 in the prior art, and the conveying belt can be controlled by an existing control component to start and stop; a roll shaft 42 close to the film drawing roll 7 is connected with the film drawing roll 7 through a gear set 8 for transmission, so that the roll shaft 42 and the film drawing roll 7 rotate in the same direction, and the film drawing roll 7 as a conveying belt 41 can well finish the conveying of products and actively draw films; and the mode that carries out the transmission with gear train 8 guarantees that transmission efficiency is high, and the cost is lower, can improve the stability of cover membrane machine work and guarantee the control of cost.

As a modified embodiment, the height of the upper end of the film drawing roller 7 is consistent with the height of the upper supporting surface of the conveying belt 41.

As shown in fig. 3 and 4, the film drawing roller 7, while performing the function of drawing the film, also serves as an extension of the conveying belt 41 in the horizontal direction, and performs good forward conveying on the product; the height defined here can be kept the same, or it can be arranged without significant height difference, so that the product will reach the film-drawing roller 7 from the conveyer belt 41 without bumping and can be conveyed stably depending on the size of the product.

As a modified embodiment, the height of the upper end of the lower seal cutter 3 is consistent with that of the upper end of the film drawing roller 7.

As shown in fig. 3 and 4, compared with some structures that are closed and heat-sealed with the upper sealing and cutting piece 2 by lifting in the prior art, the film covering machine of the present invention uses the relatively fixed lower sealing and cutting piece 3, so-called relatively fixed, that is, an elastic piece is arranged below the specific sealing and cutting piece of the lower sealing and cutting piece 3 for buffering (such as a spring specifically implemented in the enlarged partial view of fig. 4), and when the lower sealing and cutting piece is closed with the upper sealing and cutting piece 2, a certain downward pressure can be generated, so that the closing is ensured to be sufficient, and the heat sealing is better completed; the upper end height of sealing down cutting 3 keeps unanimous also to have realized supporting the product well and pass through with the upper end height of drawing membrane roller 7, makes not have obvious clearance in the direction that the product was carried, for example the lower cutting 3 that seals that goes up and down among the prior art before the heat-seal of rising, can have the clearance in its position, the utility model discloses a lower cutting 3 that seals has basically supplemented the clearance, makes passing through that the product can be stable and can not appear jolting, and then also can be used for handling the packing of the product that the size is littleer. The heights defined here are kept consistent, and in particular, they can be kept at the same height, or they can be arranged without significant height difference, so that the products can reach the lower seal-cutting member 3 from the film-drawing roller 7 without bumping and can be stably conveyed depending on the size of the products.

As an improved embodiment, a plurality of upper guide shafts 57 for passing the upper film are arranged in the height direction between the upper unwinding device 5 and the film drawing roller 7, the upper guide shafts 57 are rotatably arranged on a movable frame 571, and the movable frame 571 is arranged on the arrangement frame 1 in a vertically movable manner through a screw slider mechanism; a plurality of lower guide shafts 61 for the lower film to pass around are arranged in the height direction between the lower winding device 6 and the film drawing roller 7; the lower guide shaft 61 is rotatably provided on a fixed frame 62, and the fixed frame 62 is mounted on the arrangement frame 1 by fasteners.

As shown in fig. 2, 3 and 4, the upper film is sent to the lower sealing and cutting piece 3 through a plurality of rollers arranged at a long distance, and the upper guide shaft 57 is arranged in the middle to wind the film, so that the film can be prevented from floating in a long distance, and the orderly conveying of the film is facilitated; the original shaft structure for winding the film is fixed at a height, when the processed product has smaller specification and mainly has shorter height, the distance from the film to the upper surface of the product after the film winds around the shaft at the higher position is larger, the film can flutter and be unstable, and the possibility of wrinkles caused by unstable film drawing exists; the upper guide shaft 57 is arranged on the movable frame 571, so that the upper guide shaft 57 can flexibly adjust the height to adapt to the height of the product; after the upper film bypasses the upper guide shafts 57, the lower film is a product to be sealed and cut by the film, the film can be stably driven by the product to be pulled away to the discharge side, the film is not easy to generate floating wrinkles, and the quality of the sealed and cut film is ensured.

Similar to the upper guide shaft 57, the lower guide shaft 61 is specifically provided to wind the film to avoid the fluttering of the lower film, which can avoid the fluttering of the film in a long distance, and because it is not necessary to adapt to the height of the product below, the lower guide shaft 61 is specifically installed with a fastener by means of the fixing frame 62, and it is not necessary to perform frequent height adjustment, which controls the cost; when the user needs to carry out height adjustment, can further implement for setting up the mounting hole in a plurality of positions to cooperate the fastener, come dismouting mount 62 to different heights, satisfy specific use needs.

As a modified specific embodiment, the upper guide shafts 57 are two corresponding in projection position in the height direction, and the distance between the two upper guide shafts 57 is larger than the diameter of the upper guide shafts 57.

As shown in fig. 2, 3 and 4, the winding arrangement of the film can be well realized by adopting a mode of at least two upper guide shafts 57, the film bypasses the upper guide shaft 57 from the inner side, bypasses the upper guide shaft 57 from the space between the two upper guide shafts 57 and bypasses the lower upper guide shaft 57 from the outer side, and moves from the lower side to the discharging side, thereby playing the role of orderly conveying the film; furthermore, the distance between the two upper guide shafts 57 is set to be larger than the diameter of the upper guide shafts 57, so that the film is smooth when being wound between the two upper guide shafts 57, the resistance to the film on the structure is not easy to generate, and the smooth conveying of the film is facilitated; the two upper guide shafts 57 correspond in projection position in the height direction, and the film is passed around in order, so that excessive resistance is not generated when the film passes around the two upper guide shafts 57.

As a modified specific embodiment, the lower guide shafts 61 are two corresponding in projection position in the height direction.

As shown in fig. 4, the film winding arrangement can be well realized by adopting at least two lower guide shafts 61, the film passes around the lower guide shaft 61 on one side, passes around the lower guide shaft 61 on the other side and passes around the upper lower guide shaft 61 on the other side, reaches the film drawing roller 7, and has the function of orderly conveying the film; the two lower guide shafts 61 correspond in projection position in the height direction, and the film is passed around in order, so that excessive resistance is not generated when the film passes around the two lower guide shafts 61.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a looper hole mechanism of mantle machine, is including arrangement frame (1) and set up in last unwinding device (5) on arrangement frame (1) upper portion, go up unwinding device (5) including be used for placing whole roll membrane place roller (51), be used for to the membrane carry out looper hole wheel (52) and be used for around driving roller (53) of establishing the membrane, its characterized in that: still including main drive roller (54), it is used for in proper order around establishing the membrane to place roller (51), pinhole wheel (52), main drive roller (54), driving roller (53) set gradually, main drive roller (54) are connected first actuating mechanism (55) and are used for providing the membrane that main power pulling placed roller (51) and pinhole wheel (52) department, but driving roller (53) wobbling sets up on arranging frame (1), triggers sensor (56) when driving roller (53) tunica adventitia pulling rotation certain angle, and sensor (56) feedback signal order first actuating mechanism (55) start to send the membrane.

2. The needle punching mechanism of the film covering machine according to claim 1, characterized in that: the film conveying device is characterized in that an auxiliary driving roller (541) which is in tangent fit with the main driving roller (54) is arranged on the arrangement frame (1), the auxiliary driving roller (541) is driven to rotate by the main driving roller (54), and a film passes through the main driving roller (54) and the auxiliary driving roller (541) to be conveyed in a transmission mode.

3. The needle punching mechanism of the film covering machine according to claim 1, characterized in that: the needle eye wheel (52) is a plurality of groups and is arranged on a first rotating shaft (521) in sequence, a second rotating shaft (522) is further arranged on the arrangement frame (1), a plurality of matching wheels (523) are arranged on the second rotating shaft (522), the matching wheels (523) and the needle eye wheel (52) are arranged in a one-to-one correspondence mode and are matched in a tangent mode, annular grooves for avoiding needles on the needle eye wheel (52) are formed in the matching wheels (523), and films pass through the needle eye wheel (52) and the matching wheels (523) to be conveyed in a transmission mode.

4. The needle punching mechanism of the film covering machine according to claim 1, characterized in that: the two ends of the transmission roller (53) are respectively arranged on the arrangement frame (1) in a swinging mode through the swing rod (531), the swing rod (531) swings around a third rotating shaft (532), the third rotating shaft (532) is provided with a sensing block (533), a sensor (56) is arranged on the side edge of the sensing block (533), a protrusion or a groove (534) used for being sensed by the sensor (56) is arranged on the sensing block (533), and when the sensing block (533) rotates to the protrusion or the groove (534) to correspond to the sensor (56), a feedback signal of the sensor (56) is triggered.

5. The needle punching mechanism of the film covering machine according to any one of claims 1 to 4, characterized in that: the film cutting device is characterized by further comprising an upper sealing and cutting part (2) which can be arranged on the upper portion of the arrangement frame (1) in an up-and-down movable mode, a lower sealing and cutting part (3) which is fixedly arranged on the lower portion of the arrangement frame (1), feeding mechanisms (4) which are arranged on two sides of the lower sealing and cutting part (3), and a lower rolling device (6) which is arranged below the feeding mechanisms (4), wherein a film pulling roller (7) is arranged between the lower sealing and cutting part (3) and the feeding mechanism (4) on one side of feeding, the film pulling roller (7) is driven by power to rotate, a film at the position of the lower rolling device (6) bypasses to the position of the lower sealing and cutting part (3) from the position between the feeding mechanism (4) on one side of feeding and the film pulling roller (7), and the film pulling roller (7) is used for driving a product reaching the.

6. The needle punching mechanism of the film sleeving machine as claimed in claim 5, wherein: the film drawing roller (7) and the feeding mechanism (4) at the feeding side are driven by a common second driving mechanism.

7. The needle punching mechanism of the film covering machine according to claim 6, characterized in that: feeding side feeding mechanism (4) include conveyer belt (41) and be used for around establishing a plurality of roller (42) of conveyer belt (41), and a plurality of roller (42) are rotated by motor drive, are close to a roller (42) of drawing membrane roller (7) and draw membrane roller (7) and set up gear train (8) in the side cooperation, and this gear train (8) carry out the transmission and make roller (42) and draw membrane roller (7) to link.

8. The needle punching mechanism of the film covering machine according to claim 7, characterized in that: the height of the upper end of the film drawing roller (7) is consistent with that of the upper supporting surface of the conveying belt (41).

9. The needle punching mechanism of the film sleeving machine as claimed in claim 5, wherein: the height of the upper end of the lower sealing and cutting piece (3) is consistent with that of the upper end of the film drawing roller (7).

10. The needle punching mechanism of the film sleeving machine as claimed in claim 5, wherein: a plurality of upper guide shafts (57) for the upper films to pass are arranged in the height direction between the upper unreeling device (5) and the film drawing roller (7), the upper guide shafts (57) are rotatably arranged on a movable frame (571), and the movable frame (571) is arranged on the arrangement frame (1) in a vertically movable manner through a lead screw slider mechanism; a plurality of lower guide shafts (61) for the lower film to pass around are arranged in the height direction between the lower winding device (6) and the film drawing roller (7); the lower guide shaft (61) is rotatably arranged on a fixed frame (62), and the fixed frame (62) is arranged on the arrangement frame (1) through a fastener.