A continuous film sleeving device

Abstract

The present invention discloses a continuous film sleeving device. The film transfer mechanism is located on one side of the film sleeving mechanism. The film transfer mechanism is provided with an adsorption part for adsorbing the film sheet, and the film sleeving mechanism is provided with movable clamping arms for opening the film sheet. During the rotation process, the adsorption part moves the film sheet onto the movable clamping arms. The beneficial effects of the present invention are as follows: A film transfer mechanism is provided, which can continuously transfer the film sheet to the film sleeving mechanism, realizing continuous feeding of the film sleeving mechanism, and then completing continuous film sleeving of the housing under the action of the film sleeving mechanism. The film transfer mechanism is provided with an air distribution disc, and during the rotation of the rotating part, adsorption and demoulding of the adsorption part are realized, and thus the film transfer action can be automatically completed; through the rotation of the vacuum flow channel rotating disc of the film sleeving mechanism, the opening and closing of the movable clamping arms are realized, and thus the opening of the film sheet is realized, and the housing is pushed into the opened film sheet by the jacking bow rod, realizing film sleeving of the housing.

Description

Technical Field

[0001] The present invention relates to the film covering of a columnar housing, and in particular to a continuous film covering device. Background Art

[0002] In outer packaging, columnar housings are used more frequently. In order to protect columnar housings, a protective film is usually put on the outside of columnar housings, such as in the production packaging of batteries.

[0003] With the popularization of new energy, the usage rate of batteries has increased significantly. Especially in the field of new energy vehicles, the usage amount of batteries has shown a doubling state in recent years. In the field of new energy vehicles, the production of batteries is mainly carried out by CATL, BYD, and Tesla. Tesla and CATL mainly produce columnar batteries. Therefore, the production of columnar batteries is constantly updated. During the production process of columnar batteries, an insulating film needs to be put on the outer surface of the battery. The insulating film is usually made of PVC material. In order to adapt to modern production, the film covering of the battery requires automated production to ensure the production efficiency of the battery.

[0004] The film covering of the battery is a process in battery production technology. It includes a film covering process. After retrieval, it is found that the Chinese invention patent: A film covering device and a film covering system (CN110190292B). The top of the fixed shaft of this patent is hollowed out to make it a part of the air extraction channel, so that the top of the fixed shaft is a thin-walled structure. Therefore, the structural strength of the fixed shaft is affected, and the processing difficulty of the fixed shaft is also increased. Moreover, two vacuum suction cups are used in this patent, and they open and close respectively with the first clamping member and the second clamping member, so that the structure is relatively complex. In order to improve the efficiency of battery film covering, continuous film covering is required. Therefore, a film transfer process is needed. Through the film transfer process, the film is continuously transferred to the film covering mechanism, so as to realize the continuous covering of the film. After long-term research, the inventor has developed a set of continuous film covering device. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a continuous film covering device.

[0006] The purpose of the present invention is achieved through the following technical solutions: A continuous film covering device includes a rotatable film transfer mechanism and a rotatable film covering mechanism. The film transfer mechanism is located on one side of the film covering mechanism. The film transfer mechanism has an adsorption part for adsorbing the film. The film covering mechanism has movable clamping arms for opening the film. The adsorption part moves the film to the movable clamping arms during rotation, and the film opens as the movable clamping arms rotate. The film covering mechanism also has a pushing bow rod for pushing the housing into the opened film.

[0007] Optionally, the film transfer mechanism includes a rotating member, a rotary air distribution device, and a first driving device for driving the rotating member to rotate. The adsorption part is installed on the rotating member. A second negative pressure channel is formed on the adsorption part, and a first negative pressure channel is formed on the rotating member. The first negative pressure channel is connected to the second negative pressure channel. A first arc-shaped groove is formed on the rotary air distribution device, and the first arc-shaped groove is connected to a negative pressure device. The film transfer mechanism has a film adsorption station and a film transfer station. When the air outlet of the first negative pressure channel is just communicated with the first arc-shaped groove, the adsorption part is at the film adsorption station. When the air outlet of the first negative pressure channel is just not communicated with the first arc-shaped groove, the adsorption part is at the film transfer station. At the film transfer station, the adsorption part moves the film onto the movable clamping arm.

[0008] Optionally, the rotary air distribution device includes a support member and an air distribution disc. The air distribution disc is installed on the support member. The first arc-shaped groove is formed on the air distribution disc, and an air hole connected to the negative pressure device is formed at the bottom of the first arc-shaped groove.

[0009] Optionally, the support member includes an upper bearing seat, a shaft protection sleeve, and a lower bearing seat. The upper bearing seat and the lower bearing seat are connected by the shaft protection sleeve. Bearings are installed on the inner rings of the upper bearing seat and the lower bearing seat. The bearings are sleeved on a rotating shaft. The rotating shaft is driven by the first driving device. The rotating member is installed on the rotating shaft, and the bottom of the rotating member is attached to the top of the air distribution disc. A circular groove is formed at the top of the upper bearing seat. The air distribution disc is installed in the circular groove and is prevented from rotating by a key.

[0010] Optionally, an installation groove is axially formed on the rotating member. The air inlet hole of the first negative pressure channel is located on the groove wall of the installation groove. The adsorption part has an installation part, and the installation part is detachably installed in the installation groove. The air outlet hole of the second negative pressure channel is located on the installation part.

[0011] Optionally, the adsorption part further includes a pair of adsorption arms. The adsorption arms are installed on the installation part and are distributed at intervals in the vertical direction. The air inlet hole of the second negative pressure channel is located on the windward surface of the adsorption arm. A convex adsorption head is arranged on the windward surface of the adsorption arm. A groove body is formed on the windward surface of the adsorption head, and the air inlet hole of the second negative pressure channel is located at the bottom of the groove body.

[0012] Optionally, the film sleeving device includes a fixed shaft; a vacuum flow channel rotating disk that is driven by a driving device to rotate relative to the fixed shaft, and movable clamping arms are mounted on the top of the vacuum flow channel rotating disk, and negative pressure channels are formed in the movable clamping arms; a vacuum flow channel fixed disk that is stationary relative to the fixed shaft, and a second arc-shaped groove is formed in the vacuum flow channel fixed disk, and the second arc-shaped groove is communicated with a vacuum pumping device. The top of the vacuum flow channel fixed disk is attached to the bottom of the vacuum flow channel rotating disk, and a negative pressure cavity is formed between the second arc-shaped groove and the vacuum flow channel rotating disk. When the movable clamping arms rotate above the negative pressure cavity, the negative pressure channels are communicated with the negative pressure cavity; a chassis base, the vacuum flow channel fixed disk is mounted on the top of the chassis base, and the top of the fixed shaft passes through the vacuum flow channel fixed disk and the vacuum flow channel rotating disk, and a cam is mounted on the top of the fixed shaft. A bending arm is arranged on the movable clamping arm, and a rolling bearing is arranged on the bending arm, and the rolling bearing is always in contact with the outer edge of the cam. When the movable clamping arm rotates around the cam for one week, the movable clamping arm completes one opening and closing; a strip material disk, the strip material disk has an upper skirt and a lower skirt, the upper skirt is mounted on the vacuum flow channel rotating disk, and the tops of the vacuum flow channel rotating disk, the vacuum flow channel fixed disk and the chassis base are all located in the cavity of the strip material disk. A housing clamping groove for clamping the housing is formed on the outer circumferential side wall of the strip material disk, and a pushing bow rod is mounted on the lower skirt, and the pushing bow rod pushes the housing in the housing clamping groove upward as the vacuum flow channel rotating disk rotates, and when the movable clamping arm is fully opened, the pushing bow rod pushes the housing into the diaphragm.

[0013] Optionally, the movable clamping arms include a first clamping arm and a second clamping arm that are meshed with each other. Taking the rotation direction of the vacuum flow channel fixed disk as the front, the first clamping arm is located on the front side of the second clamping arm. The ends of the first clamping arm and the second clamping arm close to the cam are rotating ends, and the rotating ends are rotatably mounted on the vacuum flow channel rotating disk. Third negative pressure channels are formed in both the first clamping arm and the second clamping arm. When the first clamping arm and the second clamping arm are located above the negative pressure cavity, the third negative pressure channels are communicated with the negative pressure cavity. A first-stage section of the first clamping arm and the second clamping arm far from the cam is provided with a return spring. One end of the first clamping arm close to the cam is provided with a bending arm that bends backward, and the rolling bearing, the shaft rod and the fixed shaft are distributed in a triangle.

[0014] Optionally, shaft holes are formed at the rotating ends of both the first clamping arm and the second clamping arm, and shaft rods are mounted in the shaft holes. A plurality of threaded through holes distributed on the same circumference are formed in pairs on the vacuum flow channel rotating disk. The bottom of the shaft rod is threadedly connected with the threaded through holes, and the bottoms of the first clamping arm and the second clamping arm are attached to the top of the vacuum flow channel rotating disk. An air vent channel is formed on the shaft rod. When the shaft rod is located above the negative pressure cavity, the third negative pressure channels on the first clamping arm and the second clamping arm are communicated through the air vent channels of the corresponding shaft rods.

[0015] Optionally, the pusher bow rod includes a guide roller, a pusher seat, a compression spring, and a pusher rod. The top of the pusher seat is mounted on the lower skirt edge, and a sliding cavity is formed in the pusher seat. The pusher rod is installed in the sliding cavity, and the top of the pusher rod passes through the top of the pusher seat. A chute is formed on the outer side wall of the pusher rod in the axial direction. A step is provided at the bottom of the pusher rod. One end of the compression spring abuts against the step, and the other end of the compression spring abuts against the top of the sliding cavity. A roller is also radially installed at the bottom of the pusher rod. The guide roller is installed on the roller and is located outside the pusher seat. A circle of lifting slide rails is formed on the outer circumferential side wall of the chassis seat, and the guide roller rolls along the lifting slide rails.

[0016] The present invention has the following advantages:

[0017] 1. The present invention is provided with a film transfer mechanism, which can continuously transfer film sheets to the film sleeving mechanism, realize continuous feeding of the film sleeving mechanism, and then complete continuous film sleeving of the shell under the action of the film sleeving mechanism;

[0018] 2. The film transfer mechanism of the present invention realizes adsorption and demoulding of the adsorption part during the rotation of the rotating part by providing an air distribution disc, and can thus automatically complete the film transfer action;

[0019] 3. The film sleeving mechanism of the present invention realizes the opening and closing of the movable clamping arm through the rotation of the vacuum flow channel rotating disc, and thus realizes the opening of the film sheet, and the shell is pushed into the opened film sheet by the lifting bow rod to realize film sleeving of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is a schematic structural diagram of the film sleeving mechanism Figure 1 ;

[0022] Figure 3 is a schematic structural diagram of the film sleeving mechanism Figure 2 ;

[0023] Figure 4 is a schematic diagram of the relative positions of the cam and the movable clamping sleeve;

[0024] Figure 5 is a schematic installation diagram of the vacuum flow channel fixed disc, the vacuum flow channel rotating disc, the fixed shaft, and the strip material disc;

[0025] Figure 6 is a schematic installation diagram of the movable clamping arm installed on the vacuum flow channel rotating disc;

[0026] Figure 7 is a schematic structural diagram of the vacuum flow channel fixed disc;

[0027] Figure 8 Structural schematic of the movable clamping arm Figure 1 ;

[0028] Figure 9 Structural schematic of the movable clamping arm Figure 2 ;

[0029] Figure 10 Structural schematic of the second clamping arm;

[0030] Figure 11 Cross-sectional schematic of the second clamping arm;

[0031] Figure 12 Structural schematic of the connection of the arc-shaped groove, ventilation channel, and negative pressure channel;

[0032] Figure 13 Structural schematic of the strip coil;

[0033] Figure 14 Cross-sectional schematic of the strip coil;

[0034] Figure 15 Structural schematic of the pushing bow rod;

[0035] Figure 16 Structural schematic of the film transfer mechanism;

[0036] Figure 17 Installation schematic of the rotating part;

[0037] Figure 18 Installation schematic of the rotating part and the adsorption part;

[0038] Figure 19 Structural schematic of the rotating part;

[0039] Figure 20 Cross-sectional schematic of the rotating part;

[0040] Figure 21 Structural schematic of the air distribution plate;

[0041] Figure 22 Structural schematic of the adsorption part;

[0042] Figure 23 Cross-sectional schematic of the adsorption part;

[0043] In the figure, 10 - film transfer mechanism, 20 - film sleeving mechanism, 100 - rotating part, 200 - adsorption part, 300 - support part, 101 - installation groove, 102 - screw hole, 103 - first negative pressure channel, 104 - limiting step, 105 - arc-shaped through hole, 106 - stepped through hole, 201 - installation part, 202 - adsorption arm, 204 - counterbore, 205 - adsorption head, 206 - groove body, 207 - second negative pressure channel, 208 - sealing groove, 301 - upper bearing seat, 302 - shaft protective sleeve, 303 - lower bearing seat, 401 - rotating shaft, 402 - first expansion sleeve, 403 - first expansion screw, 404 - installation disc, 501 - air distribution disc, 502 - first arc-shaped groove, 503 - air hole, 504 - keyway, 505 - center hole, 701 - fixed shaft, 702 - second driven gear, 703 - bearing sleeve, 705 - chassis seat, 706 - strip material disc, 707 - vacuum flow channel fixing disc, 708 - vacuum flow channel rotating disc, 709 - cam, 710 - movable clamping arm, 711 - second expansion sleeve, 712 first clamping arm, 713 - second clamping arm, 714 - bending arm, 715 - shaft rod, 716 - return spring, 717 - rolling bearing, 718 - shaft hole, 719 - tooth, 720 - third negative pressure channel, 721 - arc-shaped groove, 722 - threaded through hole, 723 - second arc-shaped groove, 730 - material pushing bow rod, 731 - sliding groove, 732 - upper skirt, 733 - lower skirt, 734 - housing clamping groove, 735 - ejecting hole, 741 - guiding roller, 742 - pushing bow seat, 743 - compression spring, 744 - pushing bow rod, 745 - pushing bow rubber head, 746 - sliding groove. Detailed implementation manners

[0044] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0046] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0047] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the product of the invention is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] As Figure 1 shown, a continuous film sleeving device is mainly used for sleeving a columnar housing. Hereinafter, a columnar battery will be taken as an example for detailed description. Specifically, the film sleeving device includes a rotatable film transfer mechanism 10 and a rotatable film sleeving mechanism 20. The film transfer mechanism 10 is located on one side of the film sleeving mechanism 20. The film transfer mechanism is provided with an adsorption part 200 for adsorbing a film sheet. The film sleeving mechanism 20 is provided with a movable clamping arm 710 for opening the film sheet. During the rotation, the adsorption part 200 moves the film sheet onto the movable clamping arm 710, and the film sheet is opened as the movable clamping arm 710 rotates. The film sleeving mechanism 20 is further provided with a pushing bow rod 730 for pushing the housing into the opened film sheet. In this embodiment, the film transfer mechanism 10 rotates, and during the rotation, the film sheet is sleeved. That is, the adsorption part 200 adsorbs the film sheet, and then the film sheet rotates together with the adsorption part 200. When the film sheet moves to the film transfer station, the film sheet is transferred onto the movable clamping arm 710, thereby realizing the transfer of the film sheet. Then the film sheet rotates with the movable clamping arm 710. During the rotation, the movable clamping arm 710 opens the film sheet, and then the pushing bow rod 730 pushes the housing into the film sheet.

[0051] In this embodiment, as Figure 16As shown, the film transfer mechanism 10 includes a rotating member 100, a rotary air distribution device, and a first driving device for driving the rotation of the rotating member 100. For example, Figure 17 and Figure 18 As shown, an adsorption part 200 is installed on the rotating member 100. A second negative pressure channel 207 is formed on the adsorption part 200, and a first negative pressure channel 103 is formed on the rotating member 100. The second negative pressure channel 207 is connected to the first negative pressure channel 103. For example, Figure 21 As shown, a first arc-shaped groove 502 is formed on the rotary air distribution device. The first arc-shaped groove 502 is connected to a negative pressure device. When the adsorption part 200 adsorbs the film, the air outlet of the first negative pressure channel 103 is communicated with the first arc-shaped groove 502. When the adsorption part 200 does not adsorb the film, the air outlet of the first negative pressure channel 103 is not communicated with the first arc-shaped groove 502. In this embodiment, the film transfer mechanism 10 has a film adsorption station and a film transfer station. When the air outlet of the first negative pressure channel 103 is just communicated with the first arc-shaped groove 502, the adsorption part 200 is in the film adsorption station. When the air outlet of the first negative pressure channel 103 is just not communicated with the first arc-shaped groove 502, the adsorption part 200 is in the film transfer station. When film adsorption and transfer are required, the first driving device drives the rotation of the rotating member 100. When the air outlet of the first negative pressure channel 103 of the rotating member 100 is just communicated with the first arc-shaped groove 502, that is, when the adsorption part 200 is just in the film adsorption station, at this time, the second negative pressure channel 207, the first negative pressure channel 103, the first arc-shaped groove 502, and the negative pressure device are communicated. Preferably, the negative pressure device is a vacuum pump. When the vacuum pump evacuates, a negative pressure is formed in the first arc-shaped groove 502, the first negative pressure channel 103, and the second negative pressure channel 207, so that an adsorption force is generated on the adsorption part 200. The film is adsorbed on the adsorption part 200 under the action of the adsorption force of the adsorption part 200. With the continuous rotation of the first driving device, the air inlet of the first negative pressure channel 103 rotates relative to the first arc-shaped groove 502. When the first negative pressure channel 103 is just not communicated with the first arc-shaped groove 502, at this time, the adsorption part 200 is in the film transfer station. At this time, the first negative pressure channel 103 and the second negative pressure channel 207 are not communicated with the air extraction pipeline of the vacuum pump. At this time, no negative pressure is formed in the first negative pressure channel 103 and the second negative pressure channel 207. Therefore, no suction force is generated on the adsorption part 200, and the adsorption part 200 no longer generates suction force on the film. At this time, the film contacts the movable clamping arm 710, and the movable clamping arm 710 adsorbs the film and rotates with it. The rotating member 100 continues to rotate. When the adsorption part 200 rotates to the film adsorption station again, it adsorbs the film again, thus completing the continuous transfer of the film.

[0052] In this embodiment, for example, Figure 16 and Figure 17 As shown, the rotary air distribution device includes a support member 300 and an air distribution disc 501. The air distribution disc 501 is installed on the support member 300. For example,Figure 21 As shown, the first arc-shaped groove 502 is formed in the air distribution plate 501, and a ventilation hole 503 connected to the negative pressure device is formed at the bottom of the first arc-shaped groove 502. Preferably, as Figure 21 shown, the first arc-shaped groove 502 is a circular arc-shaped groove, and there are three ventilation holes 503. The suction pipes of the vacuum pump are hermetically connected to the three ventilation holes 503 respectively. A valve can be provided on the suction pipe, and the vacuum pump is set to be always on. By closing the valve, the suction of the first arc-shaped groove 502 by the vacuum pump can be disconnected. In this embodiment, the first driving device includes a first driving unit. The first driving unit transmits power to the rotating shaft 401. Further, a first driven gear is installed on the rotating shaft 401. The first driving unit transmits power to the first driven gear through gear transmission. The rotating member 100 is installed on the rotating shaft 401, and the bottom of the rotating member 100 is in contact with the top of the air distribution plate 501, so that there is a certain airtightness between the rotating member 100 and the air distribution plate 501, thereby ensuring that a negative pressure can be formed in the first negative pressure channel 103, the second negative pressure channel 207, and the first arc-shaped groove 502. In addition, since relative rotation will occur between the rotating member 100 and the air distribution plate 501, a wear-resistant layer can be applied to the bottom of the rotating member 100 and the top of the air distribution plate 501. In addition, lubricating oil can also be arranged between the rotating member 100 and the air distribution plate 501. Further, the support member 300 includes an upper bearing seat 301, a shaft protection sleeve 302, and a lower bearing seat 303. The upper bearing seat 301 and the lower bearing seat 303 are connected by the shaft protection sleeve 302, and bearings are installed in the inner rings of the upper bearing seat 301 and the lower bearing seat 303. The bearing sleeve 703 is installed on the rotating shaft 401. Through the upper bearing seat 301 and the lower bearing seat 303, the coaxiality of the rotation of the rotating shaft 401 can be ensured, and the shaft protection sleeve 302 can prevent the rotating shaft 401 from being exposed, thereby ensuring the service life of the rotating shaft 401. In addition, the lower bearing seat 303 has a flange, and the lower bearing seat 303 is installed on the frame through a bolt assembly. The upper bearing seat 301 is connected to the lower bearing seat 303 through the shaft protection sleeve 302, and further, the stability of the installation of the upper bearing seat 301 can be ensured. Further, the upper bearing seat 301 and the shaft protection sleeve 302 are flange-connected, and the lower bearing seat 303 and the shaft protection sleeve 302 are also flange-connected.

[0053] In this embodiment, as Figure 17As shown, a circular groove is formed at the top of the upper bearing block 301. The air distribution plate 501 is installed in the circular groove, and the air distribution plate 501 is prevented from rotating by a key. Preferably, a central hole 505 is formed at the center of the air distribution plate 501. When the air distribution plate 501 is installed, the top of the air distribution plate 501 is flush with the upper end surface of the upper bearing block 301. A keyway 504 is radially formed at the top of the air distribution plate 501. The keyway 504 is located in the circular groove and extends to the upper end surface of the upper bearing block 301. After the air distribution plate 501 is installed in the circular groove, the key is then installed in the corresponding keyway 504, so that the air distribution plate 501 can be prevented from rotating.

[0054] In this embodiment, as Figure 17 shown, an installation disc 404 is sleeved on the top of the rotating shaft 401. A stepped through hole 106 is formed on the rotating member 100. The installation disc 404 is installed in the large hole of the stepped through hole 106, and a plurality of threaded holes are formed at the top of the installation disc 404. The rotating member 100 is locked with the installation disc 404 by a plurality of screws. Further, as Figure 19 shown, a plurality of arc-shaped through holes 105 are formed on the limiting step 104 of the stepped through hole 106. Preferably, there are three arc-shaped through holes 105, and they are evenly distributed on the same circumference. Three threaded holes are formed on the installation disc 404. When installing the rotating member 100, the large hole of the stepped through hole 106 of the rotating member 100 is sleeved on the installation disc 404, and then the rotating member 100 is locked with screws. When the rotating member 100 is installed, the lower surface of the rotating member 100 is then in contact with the top of the air distribution plate 501.

[0055] In this embodiment, as Figure 17As described above, a stepped hole is formed in the mounting disk 404, and a protruding central column is provided on the rotating shaft 401. The large hole of the stepped hole is sleeved with the rotating shaft 401, and the step of the stepped hole abuts against the end face of the rotating shaft 401. A first expansion sleeve 402 is installed in the annular groove between the small hole of the stepped hole and the central column. A number of first expansion screws 403 are evenly distributed on the outer end face of the first expansion sleeve 402 on the same circumference. Since the rotating shaft 401 belongs to high-precision equipment and has requirements for materials, the processing of the rotating shaft 401 is relatively high. If the rotating shaft 401 and the mounting disk 404 are integrally formed, it will cause a large amount of raw material waste, thus increasing the production cost. In this embodiment, the mounting disk 404 is installed through the first expansion sleeve 402, which ensures the stability of the installation of the mounting disk 404 and also reduces the production cost, making the processing of the rotating shaft 401 simple. During installation, first, the mounting disk 404 is sleeved on the rotating shaft 401, then the step of the mounting disk 404 is abutted against the end face of the rotating shaft 401, then the first expansion sleeve 402 is installed in the annular groove, and finally the first expansion screws 403 are installed on the first expansion sleeve 402. During the locking process of the first expansion screws 403, the first expansion sleeve 402 will expand to a certain extent, thus realizing the installation of the mounting disk 404. When the mounting disk 404 needs to be removed, the corresponding first expansion screws 403 need to be removed, and then the first expansion sleeve 402 can be removed, thus realizing the disassembly of the mounting disk 404.

[0056] In this embodiment, as Figure 17 and Figure 18 shown, the adsorption part 200 is detachably installed on the rotating part 100. In this embodiment, an installation groove 101 is formed in the rotating part 100, and the air inlet hole of the first negative pressure channel 103 is located on the groove wall of the installation groove 101, as Figure 22 and Figure 23 shown, the adsorption part 200 has an installation part 201, and the installation part 201 is detachably installed in the installation groove 101, and the air outlet hole of the second negative pressure channel 207 is located on the installation part 201. After the installation part 201 is installed in the installation groove 101, the air outlet hole of the second negative pressure channel 207 is communicated with the air inlet hole of the first negative pressure channel 103. Further, the position of the installation groove 101 can be set at the top of the rotating part 100, or at the bottom of the rotating part 100, or on the side wall of the rotating part 100. If the installation groove 101 is formed at the top and bottom of the rotating part 100, it will cause the volume of the suction film rotating disk to be relatively large, and the opening of the second negative pressure channel 207 is relatively troublesome. Therefore, preferably, the installation groove 101 is formed on the outer side wall of the rotating part 100. Further, as Figure 19As shown, the installation groove 101 is arranged along the axial direction. At this time, the air inlet hole of the first negative pressure channel 103 is located at the bottom of the installation groove 101, the air outlet hole of the second negative pressure channel 207 is located on the end face where the installation part 201 is in contact with the bottom of the installation groove 101, and the air outlet hole of the first negative pressure channel 103 is located at the bottom of the rotating part 100. In this embodiment, the installation part 201 is detachably installed in the installation groove 101 by screws. A screw hole 102 is provided in the installation groove 101, and a countersunk hole 204 is provided in the installation part 201. During installation, the screw is passed through the countersunk hole 204 and locked with the screw hole 102. Further, the size of the installation part 201 matches the size of the installation groove 101. Therefore, after the installation part 201 is installed in the installation groove 101, the installation groove 101 has a limiting effect on the installation part 201, making it impossible for the installation part 201 to rotate around the screw as the axis.

[0057] In this embodiment, as Figure 19 shown, the end face where the installation part 201 is in contact with the bottom of the installation groove 101 is the mating surface. An annular sealing groove 208 is provided on the mating surface. The sealing groove 208 surrounds the air outlet hole of the second negative pressure channel 207, and a sealing member is installed in the sealing groove 208. The sealing member is an O-ring. When the installation part 201 is installed in the installation groove 101 by screws, the O-ring is squeezed in the sealing groove 208, so that the O-ring is in close contact with the bottom of the installation groove 101, thereby ensuring that the connection between the air inlet hole of the first negative pressure channel 103 and the air outlet hole of the second negative pressure channel 207 is airtight, and further ensuring the stability of the negative pressure in the first negative pressure channel 103 and the second negative pressure channel 207.

[0058] In this embodiment, as Figure 22 and Figure 23 shown, the adsorption part 200 further includes a pair of adsorption arms 202. The adsorption arms 202 are installed on the installation part 201 and are arranged at intervals up and down. The air inlet hole of the second negative pressure channel 207 is located on the windward surface of the adsorption arms 202. In this implementation, the adsorption arms 202 and the installation part 201 are integrally formed. The adsorption arms 202 extend radially outward. The pair of adsorption arms 202 and the installation part 201 form a U-shaped structure. During the rotation of the rotating part 100, the adsorption arms 202 are driven to rotate with the rotating part 100. During the rotation, the windward side of the adsorption arms 202 is the windward surface. A convex adsorption head 205 is provided on the windward surface of the adsorption arms 202. A groove 206 is provided on the windward surface of the adsorption head 205. The air inlet hole of the second negative pressure channel 207 is located at the bottom of the groove 206. Preferably, the groove 206 is a rectangular groove, and the cavity in the rectangular groove forms a negative pressure cavity, so as to ensure the adsorption area between the film and the adsorption head 205, and further improve the stability of film adsorption.

[0059] In this embodiment, asFigure 23 As shown, there are two air inlet holes of the first negative pressure channel 103, and the air inlet holes of the two first negative pressure channels 103 are arranged at intervals up and down. There are two second negative pressure channels 207. The air outlet hole of the upper second negative pressure channel 207 is communicated with the upper air inlet hole of the first negative pressure channel 103, and the air outlet hole of the lower second negative pressure channel 207 is communicated with the lower air inlet hole of the first negative pressure channel 103. Therefore, the two second negative pressure channels 207 work independently, thereby ensuring the stability of the negative pressure in the second negative pressure channel 207. In this embodiment, there are two air inlet holes of the second negative pressure channel 207, and they are located in the groove body 206, so that the gas in the negative pressure cavity can be quickly pumped away, thereby improving the adsorption efficiency between the diaphragm and the adsorption part 200.

[0060] In this embodiment, as Figure 2 、 Figure 3 shown, the film sleeving mechanism 20 includes a fixed shaft 701, a vacuum flow channel fixing disk 707, a chassis seat 705, a strip material disk 706 and a movable clamping arm 710. In this embodiment, as Figure 5 shown, the top of the fixed shaft 701 passes through the vacuum flow channel fixing disk 707 and the vacuum flow channel rotating disk 708, and a cam 709 is installed at the top of the fixed shaft 701. In this embodiment, the cam 709 is detachably installed on the fixed shaft 701. Preferably, as Figure 4 and Figure 5 shown, the cam 709 is installed on the fixed shaft 701 through a second expansion sleeve 711. That is to say, a stepped through hole is provided in the middle of the cam 709. The small hole of the stepped through hole cooperates with the fixed shaft 701, and an annular groove is formed between the large hole of the stepped through hole and the fixed shaft 701. The second expansion sleeve 711 is installed in the annular groove. After the second expansion sleeve 711 is installed in the annular groove, finally, it is locked with a second expansion screw, so as to realize the stable installation of the cam 709 and the fixed shaft 701; through the installation of the second expansion sleeve 711, the cam 709 is convenient to disassemble and assemble, and the size of the fixed shaft 701 can be reduced, and the fixed shaft 701 does not need to be drilled, ensuring the structural strength of the fixed shaft 701.

[0061] In this embodiment, the vacuum flow channel rotating disk 708 is driven by a second driving device to rotate relative to the fixed shaft 701. Preferably, as Figure 5As shown in the figure, the second driving device includes a second driving unit and a bearing sleeve 703. Bearings are installed at both the top and bottom of the inner cavity of the bearing sleeve 703. The bearing sleeve 703 is installed on the fixed shaft 701. The vacuum flow channel rotating disk 708 is installed on the top of the bearing sleeve 703. A second driven gear 702 is sleeved on the outer circumference of the bearing sleeve 703. The second driven gear 702 is connected to the second driving unit through gear transmission. When the second driving unit transmits power to the second driven gear 702 through gear transmission, the bearing sleeve 703 drives the vacuum flow channel rotating disk 708 to rotate. In this embodiment, the first driving unit and the second driving unit can be a single driving unit, and then the appropriate transmission ratio is adjusted so that when the adsorption part 200 is at the film transfer station, at this time, the movable clamping arm 710 just moves to the film transfer station to adsorb and clamp the film sheet.

[0062] In this embodiment, as Figure 6 shown, a movable clamping arm 710 is installed on the top of the vacuum flow channel rotating disk 708. A third negative pressure channel 720 is provided on the movable clamping arm 710. In this embodiment, the vacuum flow channel fixed disk 707 is stationary relative to the fixed shaft 701. As Figure 7 shown, a second arc-shaped groove 723 is provided on the vacuum flow channel fixed disk 707. The second arc-shaped groove 723 is communicated with the vacuum pumping device. The top of the vacuum flow channel fixed disk 707 is in contact with the bottom of the vacuum flow channel rotating disk 708, and a negative pressure cavity is formed between the second arc-shaped groove 723 and the vacuum flow channel rotating disk 708. When the movable clamping arm 710 rotates above the negative pressure cavity, the third negative pressure channel 720 is communicated with the negative pressure cavity. After the third negative pressure channel 720 is communicated with the negative pressure cavity, at this time, the movable clamping arm 710 has the adsorption ability, so that the film sheet can be adsorbed.

[0063] In this embodiment, the vacuum flow channel fixed disk 707 is installed on the top of the chassis base 705, and the top of the fixed shaft 701 passes through the vacuum flow channel fixed disk 707 and the vacuum flow channel rotating disk 708, and a cam 709 is installed on the top of the fixed shaft 701. A bending arm 714 is provided on the movable clamping arm 710, and a rolling bearing 717 is provided on the bending arm 714. The rolling bearing 717 is always in contact with the outer edge of the cam 709. The movable clamping arm 710 rotates around the cam 709 for one week, and the movable clamping arm 710 completes one opening and closing. Preferably, the second arc-shaped groove 723 is a semi-circular arc groove. That is to say, when the vacuum flow channel rotating disk 708 rotates, when the movable clamping arm 710 makes a circular motion, there is an adsorption ability on a half circle, that is, 180° of the circumference. At this time, the movable clamping arm 710 adsorbs the film sheet and opens the film sheet, while the other half circle does not have the adsorption ability.

[0064] In this embodiment, as Figure 13 and Figure 14As shown, the strip feeder 706 has an upper skirt 732 and a lower skirt 733. Preferably, the upper skirt 732 extends radially inward, and the lower skirt 733 extends radially outward. The upper skirt 732 is mounted on the vacuum flow channel rotating disk 708. In this embodiment, for the convenience of the rotation of the movable clamping arm 710, the circumference where the upper skirt 732 is mounted is located outside the circumference where the shaft hole 718 is located. In this embodiment, the tops of the vacuum flow channel rotating disk 708, the vacuum flow channel fixed disk 707, and the chassis base 705 are all located within the cavity of the strip feeder 706. A housing clamping groove 734 for clamping the housing is provided on the outer circumferential side wall of the strip feeder 706. A pusher bow rod 730 is mounted on the lower skirt 733. The pusher bow rod 730 pushes the housing in the housing clamping groove 734 upward as the vacuum flow channel rotating disk 708 rotates. And when the movable clamping arm 710 is fully opened, the pusher bow rod 730 pushes the housing into the diaphragm. When the second driving device drives the vacuum flow channel rotating disk 708 to rotate, at this time, the strip feeder 706 and the movable clamping arm 710 rotate with the vacuum flow channel rotating disk 708. That is to say, the strip feeder 706, the movable clamping arm 710, and the vacuum flow channel rotating disk 708 are relatively stationary. As the movable clamping arm 710 rotates, when the movable clamping arm 710 is fully opened, at this time, the pusher bow rod 730 pushes the housing into the diaphragm, completing the film covering of the housing.

[0065] Preferably, as Figure 8 and Figure 9 shown, the movable clamping arm 710 includes a first clamping arm 712 and a second clamping arm 713 that mesh with each other. With the rotation direction of the vacuum flow channel fixed disk 707 as the front, the first clamping arm 712 is located on the front side of the second clamping arm 713. The ends of the first clamping arm 712 and the second clamping arm 713 close to the cam 709 are the rotating ends, and the rotating ends are rotatably mounted on the vacuum flow channel rotating disk 708. As Figure 11 and Figure 12As shown, third negative pressure channels 720 are provided on both the first clamping arm 712 and the second clamping arm 713. When the first clamping arm 712 and the second clamping arm 713 are located above the negative pressure cavity, the third negative pressure channels 720 communicate with the negative pressure cavity. Since the second arc-shaped groove 723 is connected to the vacuum pumping device, preferably, a through hole connected to the pipeline of the vacuum pumping device is provided at the bottom of the second arc-shaped groove 723. When the vacuum pumping device pumps air, there is negative pressure in the negative pressure cavity at this time. When the third negative pressure channels 720 communicate with the negative pressure cavity, negative pressure is also generated in the third negative pressure channels 720. Therefore, an adsorption force is generated at the air inlet of the third negative pressure channels 720, and the diaphragm is adsorbed under the action of this adsorption force. Further, a return spring 716 is provided on the first section of the first clamping arm 712 and the second clamping arm 713 away from the cam 709. One end of the first clamping arm 712 close to the cam 709 is provided with a bent arm 714 that bends backward. The rolling bearing 717, the shaft rod 715, and the fixed shaft 701 are distributed in a triangle. When the vacuum flow channel rotating disc 708 rotates, the movable clamping arm 710 rotates along with the vacuum flow channel rotating disc 708 at this time. Since the cam 709 is fixed, during the rotation of the movable clamping arm 710, the rolling bearing 717 always contacts the outer edge of the cam 709. And because the trajectory of the outer edge of the cam 709 changes, the movement trajectory of the rolling bearing 717 changes along with the change of the trajectory of the outer edge of the cam 709. When the rolling bearing 717 is at the closest end of the cam 709, that is, the distance between the rolling bearing 717 and the fixed shaft 701 is the smallest. At this time, the external force applied by the cam 709 to the first clamping arm 712 through the rolling bearing 717 and the bent arm 714 is less than the pulling force of the return spring 716. Therefore, the first clamping arm 712 and the second clamping arm 713 close under the action of the return spring 716. At this time, the first clamping arm 712 and the second clamping arm 713 are in a clamped state under the pulling force of the return spring 716. When the rolling bearing 717 is at the farthest end of the cam 709, that is, the distance between the rolling bearing 717 and the fixed shaft 701 is the largest. At this time, the external force applied by the cam 709 to the first clamping arm 712 through the rolling bearing 717 and the bent arm 714 is greater than the pulling force of the return spring 716. Therefore, the first clamping arm 712 and the second clamping arm 713 open to the maximum distance. At this time, the first clamping arm 712 and the second clamping arm 713 are in a fully open state, and the diaphragm is fully opened. Further, the outer edge of the cam 709 is composed of several arc segments. Among them, the farthest end of the cam 709 is the farthest arc, and the closest end of the cam 709 is the closest arc. The front end of the farthest arc is connected to the rear end of the closest arc through a gradually shrinking gradient arc, and the front end of the closest arc is connected to the front end of the farthest arc through a gradually increasing transition arc. That is to say, when the rolling bearing 717 moves on the farthest arc, the movable clamping arm 710 is in an open state at this time, and the diaphragm is opened. When the rolling bearing 717 moves on the closest arc, the movable clamping arm 710 is in a clamped state.When the rolling bearing 717 moves on the gradual change arc, the movable clamping arm 710 transitions from the open state to the clamping state at this time. When the rolling bearing 717 moves on the transition arc, the movable clamping arm 710 gradually opens, that is, it gradually transitions from the clamping state to the open state. In this embodiment, when the rolling bearing 717 moves on the gradual change arc, there is a corresponding adsorption part 200 at the film moving station. Further, the heights of the first clamping arm 712 and the second clamping arm 713 are less than the distance between the two adsorption arms 202. Therefore, the first clamping arm 712 and the second clamping arm 713 can pass through the gap between the two adsorption arms 202. That is to say, the adsorption part 200 adsorbs the two ends of the film, while the movable clamping arm 710 adsorbs the middle part of the film. When the film is transferred, the edge of the film first enters the gap between the first clamping arm 712 and the second clamping arm 713 under the adsorption and rotation action of the adsorption part 200. Then, with the rotation of the adsorption part 200 and the rotation of the movable clamping arm 710, the film gradually penetrates into the gap between the first clamping arm 712 and the second clamping arm 713. When the adsorption part 200 rotates to the film transfer station, the film penetrates to the farthest end between the first clamping arm 712 and the second clamping arm 713 at this time, and the second clamping arm 713 adsorbs the middle part of the film.,

[0066] In this embodiment, as Figure 10 and Figure 11 shown, shaft holes 718 are provided at the rotating ends of the first clamping arm 712 and the second clamping arm 713. Shaft rods 715 are installed in the shaft holes 718. A number of threaded through holes 722 distributed on the same circumference are provided in pairs on the vacuum flow channel rotating disk 708. The bottom of the shaft rod 715 is threadedly connected to the threaded through hole 722, and the bottoms of the first clamping arm 712 and the second clamping arm 713 are in contact with the top of the vacuum flow channel rotating disk 708. An air vent channel is provided on the shaft rod 715. When the shaft rod 715 is located above the negative pressure cavity, the third negative pressure channels 720 on the first clamping arm 712 and the second clamping arm 713 are connected through the air vent channel of the corresponding shaft rod 715. Further, teeth 719 are provided at the rotating ends of the first clamping arm 712 and the second clamping arm 713. The first clamping arm 712 and the second clamping arm 713 are engaged through the teeth 719. Therefore, when an external force acts on the first clamping arm 712, the first clamping arm 712 and the second clamping arm 713 rotate towards or away from each other. Further, as Figure 12As shown, the shaft rod 715 is large at both ends and small in the middle. An external thread is provided at the bottom of the shaft rod 715. The top of the shaft rod 715 is fitted with the shaft hole 718. An air inlet of the ventilation channel is provided in the middle of the shaft rod 715. Therefore, the first clamping arm 712 and the second clamping arm 713 rotate around the corresponding shaft rod 715, while the shaft rod 715 remains stationary. When the shaft rod 715 is locked, the top of the shaft rod 715 seals the corresponding shaft hole 718. At the same time, the bottoms of the first clamping arm 712 and the second clamping arm 713 are attached to the vacuum flow channel rotating disk 708 under the locking force of the shaft rod 715. Therefore, the shaft holes 718 on the first clamping arm 712 and the second clamping arm 713 form a relatively sealed cavity. When the shaft rod 715 moves above the negative pressure cavity, the negative pressure cavity, the ventilation channel, and the third negative pressure channel 720 form a connected negative pressure air passage. At this time, the diaphragm can be sucked. When the first clamping arm 712 and the second clamping arm 713 are opened, the diaphragm can be opened. Further, arc-shaped grooves 721 are provided on the clamping surfaces of the first clamping arm 712 and the second clamping arm 713. A plurality of air inlet holes communicating with the corresponding third negative pressure channels 720 are provided at the bottom of the arc-shaped grooves 721. Due to the existence of the arc-shaped grooves 721, when the diaphragm is opened, a structure close to a circle can be formed, thus facilitating the sleeving of the diaphragm on the cylindrical housing.

[0067] In this embodiment, as Figure 15As shown in the figure, the pusher bow rod 730 includes a guide roller 741, a pusher seat 742, a compression spring 743, a pusher rod 744, and a pusher rubber head 745. The pusher seat 742 is cylindrical, and the bottom of the pusher seat 742 is sealed. A through hole through which the pusher rod 744 passes is provided at the top of the pusher seat 742. The top of the pusher seat 742 is mounted on the lower skirt 733. Preferably, the pusher seat 742 and the lower skirt 733 are detachably connected by screws. In this embodiment, a sliding cavity is provided in the pusher seat 742, and the pusher rod 744 is installed in the sliding cavity, and the top of the pusher rod passes through the top of the pusher seat 742. Further, a jacking hole 735 corresponding to the housing clamping groove 734 is provided on the lower skirt 733. The top of the pusher rod 744 is jacked out from the jacking hole 735. A pusher rubber head 745 is installed at the top of the pusher rod 744. Due to the presence of the pusher rubber head 745, the contact between the pusher rubber head 745 and the housing is a flexible contact, thus avoiding damage to the housing during the jacking process. A chute 746 is provided on the outer side wall of the pusher rod 744 in the axial direction. A step is provided at the bottom of the pusher rod 744. One end of the compression spring 743 abuts against the step, and the other end of the compression spring 743 abuts against the top of the sliding cavity. A roller is also radially installed at the bottom of the pusher rod 744. The guide roller 741 is installed on the roller, and the guide roller 741 is located outside the pusher seat 742. A circle of jacking slide rails is provided on the outer circumferential side wall of the chassis seat 705. The guide roller 741 rolls along the jacking slide rails. In this embodiment, since the pusher bow rod 730, the strip material disk 706, and the movable clamping arm 710 rotate synchronously with the vacuum flow channel rotating disk 708, the housing film covering is completed when the first clamping arm 712 and the second clamping arm 713 of the movable clamping arm 710 are in a fully open state.

[0068] The working process of the present invention is as follows: In this embodiment, the sleeving of the diaphragm is mainly divided into two parts, namely the transfer of the diaphragm and the sleeving of the housing with the diaphragm. When transferring the diaphragm, the first driving device drives the rotation of the rotating shaft 401, the rotating shaft 401 drives the rotation of the rotating member 100, and further causes the adsorption portion 200 to rotate. During the rotation of the adsorption portion 200, since the first arc-shaped groove 502 is provided on the air distribution disc 501, the adsorption portion 200 has two states: adsorbing the diaphragm and not adsorbing the diaphragm. When the adsorption portion 200 enters the film adsorption station, the adsorption portion 200 adsorbs the diaphragm. As the rotating member 100 rotates, the adsorption portion 200 gradually moves the diaphragm closer to the film transfer station. When the adsorption portion 200 approaches the film movement station, at this time, the movable clamping arm 710 corresponding to the adsorption portion 200 also approaches the film movement station. Then, the edge of the diaphragm first enters the gap between the first clamping arm 712 and the second clamping arm 713 under the adsorption and rotation action of the adsorption portion 200. Then, with the rotation of the adsorption portion 200 and the rotation of the movable clamping arm 710, the diaphragm gradually penetrates into the gap between the first clamping arm 712 and the second clamping arm 713. When the adsorption portion 200 rotates to the film transfer station, at this time, the diaphragm penetrates to the farthest end between the first clamping arm 712 and the second clamping arm 713, and the second clamping arm 713 adsorbs the middle part of the diaphragm. Then, with the rotation of the adsorption portion 200 and the movable clamping arm 710, the adsorption portion 200 approaches the film adsorption station again, and the diaphragm enters the membrane sleeving mechanism 20 along with the movable clamping arm 710, thus completing the movement of the diaphragm.

[0069] During the film sleeving process, the second driving device drives the vacuum flow channel rotating disk 708 to rotate. At this time, the pusher bow rod 730, the strip material disk 706, and the movable clamping arm 710 rotate along with the vacuum flow channel rotating disk 708. When the rolling bearing 717 moves on the gradual change arc, the third negative pressure channel 720 is communicated with the negative pressure cavity at this time, and the movable clamping arm 710 has adsorption ability, so it can adsorb the film, that is, the movement of the film is completed. At this time, the pusher rod 744 of the pusher bow rod 730 is in the downward stroke. As the vacuum flow channel rotating disk 708 rotates, the rolling bearing 717 enters the nearest arc of the cam 709. At this time, the first clamping arm 712 and the second clamping arm 713 clamp the film, so that both the first clamping arm 712 and the second clamping arm 713 adsorb the film. Then, as the vacuum flow channel disk continues to rotate, the rolling bearing 717 enters the transition arc and gradually moves towards the farthest arc. At this time, the first clamping arm 712 and the second clamping arm 713 assembly opens, and the film gradually opens. The pusher bow rod 730 is still in the downward stroke. When the rolling bearing 717 enters the farthest arc, the film is completely opened at this time, and the sliding groove 731 starts to climb, that is, the pusher bow rod 730 starts to move upward, thereby pushing the housing upward. As the vacuum flow channel rotating disk 708 continues to rotate, the rolling bearing 717 rolls on the farthest arc, and the housing is pushed into the opened film to complete the film sleeving of the housing. Then the vacuum flow channel rotating disk 708 continues to rotate, the sliding groove 731 enters the downhill section, the pusher bow rod 730 moves downward, and the housing with the sleeved film is unloaded by the unloading device. In this embodiment, the feeding of the housing and the unloading of the housing with the sleeved film both belong to the prior art, so they will not be described in detail here. When the housing with the sleeved film is unloaded, as the vacuum flow channel rotating disk 708 continues to rotate, the rolling bearing 717 moves from the farthest arc to the gradual change arc to complete the film sleeving of one housing.

[0070] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A continuous film sleeving device, characterized in that: it includes a rotatable film transfer mechanism and a rotatable film sleeving mechanism. The film transfer mechanism is located on one side of the film sleeving mechanism. The film transfer mechanism has an adsorption part for adsorbing the film sheet. The film sleeving mechanism has movable clamping arms for opening the film sheet. The adsorption part moves the film sheet onto the movable clamping arms during rotation, and the film sheet is opened as the movable clamping arms rotate. The film sleeving mechanism also has a pushing bow rod for pushing the housing into the opened film sheet. The film sleeving device includes a fixed shaft; a vacuum flow channel rotating disk, which is driven by a driving device to rotate relative to the fixed shaft. The movable clamping arms are mounted on the top of the vacuum flow channel rotating disk, and negative pressure channels are provided on the movable clamping arms; a vacuum flow channel fixed disk, which is stationary relative to the fixed shaft. A second arc-shaped groove is provided on the vacuum flow channel fixed disk. The second arc-shaped groove is communicated with a vacuum pumping device. The top of the vacuum flow channel fixed disk is attached to the bottom of the vacuum flow channel rotating disk, and a negative pressure cavity is formed between the second arc-shaped groove and the vacuum flow channel rotating disk. When the movable clamping arms rotate above the negative pressure cavity, the negative pressure channels are communicated with the negative pressure cavity. The second arc-shaped groove is a semi-circular arc groove; a chassis base. The vacuum flow channel fixed disk is mounted on the top of the chassis base. The top of the fixed shaft passes through the vacuum flow channel fixed disk and the vacuum flow channel rotating disk, and a cam is mounted on the top of the fixed shaft. A bent arm is provided on the movable clamping arms, and a rolling bearing is provided on the bent arm. The rolling bearing is always in contact with the outer edge of the cam. The movable clamping arms rotate around the cam for one week, and the movable clamping arms complete one opening and closing; a strip material disk, which has an upper skirt and a lower skirt. The upper skirt is mounted on the vacuum flow channel rotating disk, and the tops of the vacuum flow channel rotating disk, the vacuum flow channel fixed disk and the chassis base are all located in the cavity of the strip material disk. A housing clamping groove for clamping the housing is provided on the outer circumferential side wall of the strip material disk. The pushing bow rod is mounted on the lower skirt. The pushing bow rod pushes the housing in the housing clamping groove upwards as the vacuum flow channel rotating disk rotates. And when the movable clamping arms are fully opened, the pushing bow rod pushes the housing into the film sheet.

2. A continuous film sleeving device according to claim 1, characterized in that: The film transfer mechanism includes a rotating member, a rotary air distribution device, and a first driving device for driving the rotation of the rotating member. The adsorption portion is mounted on the rotating member. A second negative pressure channel is formed in the adsorption portion, and a first negative pressure channel is formed in the rotating member. The first negative pressure channel is connected to the second negative pressure channel. A first arc-shaped groove is formed in the rotary air distribution device, and the first arc-shaped groove is connected to a negative pressure device. The film transfer mechanism has a film suction station and a film transfer station. When the air outlet of the first negative pressure channel is just communicated with the first arc-shaped groove, the adsorption portion is at the film suction station. When the air outlet of the first negative pressure channel is just not communicated with the first arc-shaped groove, the adsorption portion is at the film transfer station. The adsorption portion moves the film sheet onto the movable clamping arm at the film transfer station.

3. A continuous film sleeving device according to claim 2, characterized in that: The rotary air distribution device includes a support member and an air distribution disc. The air distribution disc is mounted on the support member. The first arc-shaped groove is formed in the air distribution disc, and an air hole connected to the negative pressure device is formed at the bottom of the first arc-shaped groove.

4. A continuous film sleeving device according to claim 3, characterized in that: The support member includes an upper bearing seat, a shaft protection sleeve, and a lower bearing seat. The upper bearing seat and the lower bearing seat are connected by the shaft protection sleeve. Bearings are installed in the inner rings of the upper bearing seat and the lower bearing seat. The bearings are sleeved on a rotating shaft. The rotating shaft is driven by the first driving device. The rotating member is mounted on the rotating shaft, and the bottom of the rotating member is in contact with the top of the air distribution disc. A circular groove is formed at the top of the upper bearing seat. The air distribution disc is mounted in the circular groove and is stopped from rotating by a key.

5. A continuous film sleeving device according to claim 4, characterized in that: An installation groove is axially formed in the rotating member. The air inlet hole of the first negative pressure channel is located on the groove wall of the installation groove. The adsorption portion has an installation portion. The installation portion is detachably mounted in the installation groove, and the air outlet hole of the second negative pressure channel is located on the installation portion.

6. A continuous film sleeving device according to claim 5, characterized in that: The adsorption portion further includes a pair of adsorption arms. The adsorption arms are mounted on the installation portion and are distributed at intervals up and down. The air inlet hole of the second negative pressure channel is located on the windward surface of the adsorption arm. A convex adsorption head is provided on the windward surface of the adsorption arm. A groove body is formed on the windward surface of the adsorption head. The air inlet hole of the second negative pressure channel is located at the bottom of the groove body.

7. A continuous film sleeving device according to claim 1, characterized in that: The movable clamping arms include a first clamping arm and a second clamping arm that mesh with each other. With the rotation direction of the vacuum flow channel fixed disk as the front, the first clamping arm is located on the front side of the second clamping arm. One end of the first clamping arm and the second clamping arm close to the cam is the rotating end, and the rotating end is rotatably installed on the vacuum flow channel rotating disk. Third negative pressure channels are provided on both the first clamping arm and the second clamping arm. When the first clamping arm and the second clamping arm are located above the negative pressure cavity, the third negative pressure channels communicate with the negative pressure cavity. A return spring is provided on the first section of the first clamping arm and the second clamping arm away from the cam. One end of the first clamping arm close to the cam is provided with the bending arm that bends backward. The rolling bearing, the shaft rod, and the fixed shaft are distributed in a triangle.

8. A continuous film sleeving device according to claim 7, wherein: Shaft holes are provided at the rotating ends of the first clamping arm and the second clamping arm, and a shaft rod is installed in the shaft holes. A plurality of threaded through holes distributed on the same circumference are provided in pairs on the vacuum flow channel rotating disk. The bottom of the shaft rod is threadedly connected to the threaded through holes, and the bottoms of the first clamping arm and the second clamping arm are in contact with the top of the vacuum flow channel rotating disk. An air vent channel is provided on the shaft rod. When the shaft rod is located above the negative pressure cavity, the third negative pressure channels on the first clamping arm and the second clamping arm communicate through the air vent channel corresponding to the shaft rod.

9. A continuous film sleeving device according to claim 1, wherein: The material pushing bow rod includes a guiding roller, a pushing bow seat, a compression spring, and a pushing bow rod. The top of the pushing bow seat is installed on the lower skirt edge, and a sliding cavity is provided in the pushing bow seat. A pushing bow rod is installed in the sliding cavity, and the top of the pushing bow rod passes through the top of the pushing bow seat. A chute is provided on the outer side wall of the pushing bow rod in the axial direction. A step is provided at the bottom of the pushing bow rod. One end of the compression spring abuts against the step, and the other end of the compression spring abuts against the top of the sliding cavity. A roller is also radially installed at the bottom of the pushing bow rod. The guiding roller is installed on the roller, and the guiding roller is located outside the pushing bow seat. A circle of lifting slide rails is provided on the outer circumferential side wall of the chassis seat, and the guiding roller rolls along the lifting slide rails.

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