CN109702996B - Automatic flanging device and using method - Google Patents

Abstract

The invention discloses an automatic folding device and a method of use, which includes: a gantry and a plurality of folding units. Inside the gantry is a folding station, including a main lifting drive device and a plurality of movable frames; the main lifting The body of the driving device is installed on the upper end of the gantry, and multiple movable frames are suspended in the gantry and have a degree of freedom to move in the height direction; the power output end of the main lifting drive device is connected to the multiple movable frames; A folding unit is installed on the movable frame, and each folding unit includes a movable heating folding knife. The folding unit and the movable frame are connected through a movable arm assembly with several degrees of freedom of expansion and contraction in several directions. The invention is used to solve the problem of performing a folding operation on an intermediate plastic film product on a working platform of an automatic blister sealing machine.

Description

Automatic folding device and use method

Technical field

The invention relates to a processing module for plastic film packaging shells, and in particular to an automatic folding device and a method of use.

Background technique

At present, blister packaging is a general term that uses blister technology to produce plastic products and uses corresponding equipment to package the products. Blister products mainly use various plastic materials to produce various specifications of electronic blister packaging, stationery blister packaging, toy blister packaging, hardware blister packaging, food blister packaging, daily chemical gifts and crafts Blister packaging. Blister packaging is of high quality, low price, and can beautify products, and is widely used in product packaging. As we all know, blister packaging requires the use of special equipment or production lines. Generally, the process of the above-mentioned packaging process is to use strip-shaped plastic film consumables, and then perform a thermoplastic molding process on it through equipment to form an intermediate finished product of the blister that needs subsequent processing. For example, the edges of the intermediate finished product of the blister need to be processed. A portion of the plastic film consumables are folded.

However, existing special equipment or production lines for automatic blister packaging have the following shortcomings:

(1) Most of the existing special production lines for blister packaging use glue coating for packaging, and there is no special automatic folding device. Even if folding is considered for packaging, it still needs to be done after the intermediate finished product is discharged. Looking for folding equipment to complete the folding process, in the end you have to rely on manual operations to perform the folding, which is time-consuming and labor-intensive.

(2) Even if there are special production equipment equipped with folding devices, the processing quality of such folding devices is relatively rough.

Summary of the invention

In order to overcome the shortcomings of the prior art, one of the purposes of the present invention is to solve the problem of how to perform an intermediate product folding process on an intermediate product of a plastic film on a working platform of an automatic blister sealing machine equipment.

A second object of the present invention is to provide a method for using the automatic folding device.

One of the purposes of the present invention is achieved by adopting the following technical solutions:

Automatic folding device, including:

A gantry, wherein a folding station is provided inside the gantry, and comprises a main lifting drive device and a plurality of movable frames; the body of the main lifting drive device is installed at the upper end of the gantry, and the plurality of movable frames are suspended inside the gantry and have the freedom to move in the height direction; the power output end of the main lifting drive device is connected to the plurality of movable frames;

A plurality of folding units are installed on a movable frame, each folding unit comprises a movable heating folding knife, and the folding unit is connected to the movable frame via a movable arm assembly with a plurality of directional telescopic freedoms.

Further, the automatic folding device also includes a clamping assembly installed in the gantry for clamping the preliminary finished bulb to be processed that stably enters the folding station.

Further, the clamping assembly includes a push clamp cylinder and a clamping block installed on the push rod of the push clamp cylinder.

Furthermore, the main lifting drive device is a main lifting cylinder, and a through hole is opened in the middle of the gantry, through which a push rod of the main lifting cylinder passes, and the end of the push rod is connected to all movable frames.

Further, the movable frame includes a transverse frame and a longitudinal frame, the transverse frame extends along the first direction, and the longitudinal frame extends along the second direction.

Further, the movable arm assembly includes a first movable arm assembly and a second movable arm assembly respectively installed on both ends of the transverse frame, and a third movable arm assembly installed on the longitudinal frame.

Further, the first movable arm assembly includes a first primary transverse cylinder, a first primary vertical cylinder, a first secondary vertical cylinder, and a first secondary transverse cylinder; the second movable arm assembly includes a second primary transverse cylinder, second primary vertical cylinder, second secondary vertical cylinder, second secondary transverse cylinder; the third movable arm assembly includes a third primary longitudinal cylinder, a third primary vertical cylinder, a third secondary Vertical cylinder, third secondary longitudinal cylinder.

Further, the heating folding knife includes a heating component and a mounting component, and the mounting component is used to install the heating folding knife on the movable free end of the movable arm assembly; the heating component includes an internally installed The strip-shaped metal ridge of the heating wire.

The second object of the present invention is achieved by adopting the following technical solution:

A method of using an automatic folding device, applied to the above automatic folding device, including:

The automatic folding device includes a gantry and a plurality of folding units. The gantry is equipped with a main lifting drive device, a transverse frame, a longitudinal frame and a clamping assembly; the gantry is equipped with a folding station, and the transverse frame is installed There is a first folding unit and a second folding unit, and a third folding unit is installed on the longitudinal frame; the first folding unit, the second folding unit, and the third folding unit all include heating components. Each heating component includes a metal convex rib; a first movable arm assembly is provided between the first folding unit and the transverse frame, a second movable arm assembly is provided between the second folding unit and the transverse frame, and a third folding arm assembly is provided between the second folding unit and the transverse frame. A third movable arm assembly is provided between the unit and the longitudinal frame; the first movable arm assembly includes a first primary transverse cylinder, a first secondary transverse cylinder, a first primary vertical cylinder and a first secondary vertical cylinder; the second The movable arm assembly includes a second primary transverse cylinder, a second secondary transverse cylinder, a second primary vertical cylinder and a second secondary vertical cylinder; the third movable arm assembly includes a third primary longitudinal cylinder and a third secondary longitudinal cylinder , the third primary vertical cylinder and the third secondary vertical cylinder.

The use of the automatic folding device includes the following steps:

S1: The initial state of the main lifting cylinder is the extended state; the initial states of the first primary horizontal cylinder, the first secondary horizontal cylinder, the first primary vertical cylinder, the second primary horizontal cylinder, the second secondary horizontal cylinder, the second primary vertical cylinder, the third primary longitudinal cylinder, the third secondary longitudinal cylinder, and the third primary vertical cylinder are all in the retracted state; the initial states of the first secondary vertical cylinder, the second secondary vertical cylinder, and the third secondary vertical cylinder are all in the extended state;

S2: The external mold carrier unit carries the intermediate finished product of the bubble shell and enters the folding station;

S3: First, the heating component heats up; then the first primary vertical cylinder, the second primary vertical cylinder, and the third primary vertical cylinder all extend the push rods, and then the first primary transverse cylinder, the second primary transverse cylinder , the third primary vertical cylinder extends the push rod, and at this time all the strip metal ridges are moved to the lower side of the plastic film consumables in the area where the finished product needs to be processed in the middle of the bubble shell, and then the first secondary vertical cylinder, the second The first-stage vertical cylinder and the third secondary vertical cylinder both retract upward, causing all the strip-shaped metal ridges to abut the plastic film consumables in the area to be processed, allowing the plastic film consumables to be heated and softened; after that, the main lifting cylinder retracts upward. , lift all the heating folding knives upward to bend the plastic film consumables upward; finally, the first secondary transverse cylinder, the second secondary transverse cylinder, and the third secondary longitudinal cylinder all extend the push rods, which will be The upward-turned plastic film material is bent toward the inside of the finished product in the middle of the bubble shell;

S4: The first primary transverse cylinder, the first secondary transverse cylinder, the first primary vertical cylinder, the first secondary vertical cylinder, the second primary transverse cylinder, the second secondary transverse cylinder, the second primary vertical cylinder, the second secondary vertical cylinder, the third primary longitudinal cylinder, the third secondary longitudinal cylinder, the third primary vertical cylinder, the third secondary longitudinal cylinder and the main lifting cylinder are reset to the initial state described in step S1;

S5: The external mold transport unit transports the bubble shell intermediate product away from the folding station.

Further, step S2 in the above method includes a sub-step S20: after the bulb intermediate product enters the folding station, the clamping assembly clamps and stabilizes the bulb intermediate product;

Step S5 in the above method includes a sub-step S50: before the intermediate finished product of the bulb shell is transported away from the folding station, the clamping assembly retracts and resets to release the clamping of the intermediate finished product of the bulb shell.

Compared with the existing technology, the beneficial effects of the present invention are:

(1) Different from the previous method that requires the use of external bending equipment for processing, the implementation of the present invention can conveniently modularize the folding device directly and set it on the working platform of the production line equipment, and the mold carrying units are sequentially sent to be processed. The intermediate finished plastic film products can be folded one by one. The work efficiency is greatly improved compared with the past, and at the same time, the floor space of the factory workshop is reduced;

(2) Multiple movable arm assemblies are used to accurately heat, soften and bend the intermediate plastic film products with the heated folding knives driven by each, which is easy to execute and has high reliability;

(3) The electronic control unit installed in the rack is used for control. In addition, the machine can also be adjusted through the visual control module during standby/stop, which has a high degree of automation.

Description of drawings

Figure 1 is a schematic diagram of the location of the present invention installed on production equipment;

Figure 2 is a three-dimensional view of the folding device according to the present invention (for the convenience of understanding, the second column has been hidden in Figure 2);

FIG3 is a front view structural diagram of the folding device of the present invention;

Figure 4 is a top view of the folding device according to the present invention;

Figure 5 is a cross-sectional view of A-A in Figure 4;

Figure 6 is a cross-sectional view of B-B in Figure 4;

In the picture: 1. Frame; 10. Main motor; 11. Operation module; 12. Consumables moving device; 13. Consumables placing mechanism; 14. Consumables guiding mechanism; 15. Heating mechanism; 16. Blister forming mechanism; 17 , Rewinding mechanism; 18. Cutting mechanism; 20. Rotary chain; 21. Mold carrying unit; 22. Card placement mechanism; 23. Folding device; 24. Hole cutting mechanism; 25. Hot pressing mechanism; 230. Chapter One column; 231, roof; 232, main lifting cylinder; 233, transverse frame; 2330, first primary transverse cylinder; 2331, first primary vertical cylinder; 2332, first secondary vertical cylinder; 2333, first 2334, the first heating folding knife; 2335, the second primary lateral cylinder; 2336, the second primary vertical cylinder; 2337, the second secondary vertical cylinder; 2338, the second secondary lateral cylinder; 2339 , the second heating folding knife; 234, longitudinal frame; 2340, the third primary longitudinal cylinder; 2341, the third primary vertical cylinder; 2342, the third secondary vertical cylinder; 2343, the third secondary longitudinal cylinder; 2344 , the third heating folding knife; 235, the first clamping component; 236, the second clamping component; 237, the second column.

Detailed ways

Below, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be noted that, on the premise that there is no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. .

As shown in Figure 1-6, an automatic blister sealing machine can be a device for processing strip-shaped plastic film consumables into plastic shell products, including but not limited to a frame 1, which can be a rectangular parallelepiped Structure, the upper end surface of the frame 1 is a working platform, which can be divided into a loading end and a discharging end along the length of the working platform. A section of the working platform on the side close to the loading end is a material preparation area, close to the discharging end. A section of the working platform on one side of the machine is the processing area. Starting from the loading end, the material preparation area is equipped with a consumable placement mechanism 13, a consumable guide mechanism 14, a heating mechanism 15, a plastic forming mechanism 16, and a winding mechanism 17. The processing area is close to the material preparation area. Installed at one end is a cutting mechanism 18. Specifically, a consumable moving device 12 extending along the length direction is installed from the rear of the station where the consumable guide mechanism 14 is located to the front of the station where the cutting mechanism 18 is located. The consumable moving device 12 is provided with a rotational power provided thereto. The external motor can specifically be two rotating roller groups located at both ends in the width direction. The rotating roller groups are divided into an upper row of rollers and a lower row of rollers. Here, since the two edges in the width direction of the strip-shaped plastic film consumables belong to the non-processing area, the strip-shaped plastic film consumables are clamped by the two edges in the width direction in the preparation area, and then pulled by friction force before they can be processed. It moves from the feeding end to the processing area. The consumable moving device 12 can also be implemented in three other modes of transportation: (1) a number of rubber rollers driven by an external motor, (2) a combination of a power provided by an external motor, a transmission assembly and a number of movable clamping parts. The device, (3) is powered by an external motor and equipped with sprockets, chains and several clamping devices.

Since the strip-shaped plastic film consumables will be separated from the preliminary bubble shell products that have completed the thermoplastic process at the work station of the blister forming mechanism 16, the winding mechanism 17 to the cutting mechanism 18 also have a conveyor belt device for Convey the separated preliminary blister finished products. A plurality of preliminary bubble shell finished products are fed into a plurality of rear mold carrying units 21 one by one and in one-to-one correspondence.

As shown in Figure 1, a rotary chain 20 is installed along the length direction of the processing area. The rotary chain 20 is driven by a main motor 10 installed inside the frame 1, and then through a reduction mechanism and a gear set. The plurality of mold carrying units 21 are installed on the rotary chain 20 in sequence, and adjacent mold carrying units 21 are equidistantly spaced apart from each other. A cutting mechanism 18, a jam placing mechanism 22, a folding device 23, a hole cutting mechanism 24, and a hot pressing mechanism 25 are installed in sequence along the length direction of the processing area. The automatic edge folding device 23 disclosed in the present invention refers to an edge folding device 23 that can be applied to the automatic blister sealing machine.

As shown in Figures 2 to 6, for the convenience of expression and understanding, the first direction and transverse direction in the present invention are the length direction of the frame 1, the second direction and longitudinal direction are the width direction of the frame 1, and the third direction and the vertical direction is the height direction of the rack 1. An automatic folding device includes but is not limited to: a gantry, multiple movable frames and movable heating folding knives. The gantry is installed at the upper end of the processing area. Specifically, the gantry includes a first column 230, a second column 237, and a top plate 231 connecting the first column 230 and the second column 237; a main drive is installed on the upper end of the top plate 231 of the gantry. device, the movable frames are connected to the power output end of the main driving device. Specifically, the main driving device can be the main lifting cylinder 232. The body of the main lifting cylinder 232 is installed on the gantry, and a through hole is opened in the top plate 231 of the gantry. , the push rod of the main lifting cylinder 232 passes through the through hole, and the end of the push rod is connected to all movable frames in the gantry. This method allows the movable frames to move in the third direction, and can move in both directions. Stop at a stroke end point; the multiple movable frames can be at least one transverse frame 233 parallel to the first direction vector, or at least one longitudinal frame 234 parallel to the second direction vector, or both. There are situations. Here, as a preferred implementation solution, two movable frames may be provided, one movable frame is the transverse frame 233, and the other movable frame is the longitudinal frame 234.

Two movable arm assemblies with telescopic freedom are respectively installed at both ends of the transverse frame 233, which are divided into a first movable arm assembly and a second movable arm assembly for distinction. Each movable arm assembly includes but is not limited to a primary transverse cylinder, a primary vertical cylinder, a secondary vertical cylinder, and a secondary transverse cylinder. Specifically, the cylinder body of the primary transverse cylinder is installed at one end of the top rod of the transverse frame 233, the cylinder body of the primary vertical cylinder is connected to the push rod of the primary transverse cylinder, the cylinder body of the secondary vertical cylinder is connected to the push rod of the primary vertical cylinder, and the cylinder body of the secondary transverse cylinder is connected to the push rod of the secondary vertical cylinder. Each heating folding knife includes a heating component and a mounting component, and the mounting component is connected to the push rod of the secondary transverse cylinder. Specifically, the heating component includes a strip metal ridge with a heating wire installed inside. The strip metal ridge is used to perform a heating and softening step and a folding step on the edge of the intermediate finished product of the bubble shell sleeved on the mold.

Specifically, the first movable arm assembly sequentially includes a first primary transverse cylinder 2330, a first primary vertical cylinder; 2331, a first secondary vertical cylinder 2332, a first secondary transverse cylinder 2333; the first heating folding knife 2334 is installed on the push rod of the first secondary transverse cylinder 2333, that is, the movable free end corresponding to the first movable arm assembly; the second movable arm assembly is located opposite the first movable arm assembly at the other end of the transverse frame 233 , including in turn a second primary transverse cylinder 2335, a second primary vertical cylinder 2336, a second secondary vertical cylinder 2337, and a second secondary transverse cylinder 2338. The push rod of the second secondary transverse cylinder 2338 is equipped with a second The second heating folding knife 2339 is installed on the movable free end corresponding to the second movable arm assembly.

The longitudinal frame 234 may be a movable arm assembly with a telescopic degree of freedom installed on one end. To differentiate, it is defined as a third movable arm assembly. The third movable arm assembly includes a third primary longitudinal cylinder 2340 and a third primary vertical cylinder; 2341. The third secondary vertical cylinder 2342 and the third secondary longitudinal cylinder 2343; the third heating folding knife 2344 is installed on the push rod of the third secondary longitudinal cylinder 2343.

Of course, as an extension of the solution described in the previous paragraph, the longitudinal frame 234 can also be provided with an additional set of folding components on the other side of the longitudinal frame 234 according to user needs, forming a folding component with the above-mentioned third movable arm component. The fourth set of folding components is opposite to each other, so that the four-sided folding of the finished product in the middle of the bulb can be realized.

As a preferred embodiment, the present invention also includes a number of clamping components for clamping and stabilizing the finished product of the preliminary bulb. The clamping components include a push-clamp cylinder and a clamping component. The body of the push-clamp cylinder is installed on the gantry. The clamping component is installed at the push rod of the push clamp cylinder. Specifically, the second clamping assembly 236 may be installed on the first upright column 230 , and the first clamping assembly 235 may be installed on the second upright column 237 .

The mold carrying unit 21 includes a detachable mold and a carrying unit assembly for carrying the mold. The carrying unit assembly is installed on the rotary chain 20. The mold may be a mold with fixed dimensions. It can also be a modified mold with adjustable dimensions; the mold includes a fixed step and a molding step, and the fixed step is used to connect with the clamping part of the first clamping assembly 235 or the clamping part of the second clamping assembly 236 Cooperation is used to form a stable clamping of the non-processed area on the outer edge of the preliminary bubble shell product. The forming steps are used to cooperate with the strip-shaped metal ridges of the heating folding knife to heat-melt, soften and bend the heated edges of the preliminary finished bulbs that need to be processed.

A method of using an automatic folding device, applied in the aforementioned optimal implementation, includes:

The initial hardware environment includes: the automatic folding device includes a gantry, the gantry is equipped with a main lifting drive cylinder 232, a transverse frame 233, a longitudinal frame 234 and a clamping assembly; the gantry is equipped with a folding station, the transverse frame 233 is equipped with a first folding unit and a second folding unit, and the longitudinal frame 234 is equipped with a third folding unit; the first folding unit, the second folding unit, and the third folding unit all include a heating component, each heating component includes a strip of metal convex ridge; a first movable arm assembly is provided between the first folding unit and the transverse frame 233, and a second movable arm assembly is provided between the second folding unit and the transverse frame 233 Arm assembly, a third movable arm assembly is provided between the third folding unit and the longitudinal frame 234; the first movable arm assembly includes a first primary transverse cylinder 2330, a first secondary transverse cylinder 2333, a first primary vertical cylinder 2331 and a first secondary vertical cylinder 2332; the second movable arm assembly includes a second primary transverse cylinder 2335, a second secondary transverse cylinder 2338, a second primary vertical cylinder 2336 and a second secondary vertical cylinder 2337; the third movable arm assembly includes a third primary longitudinal cylinder 2340, a third secondary longitudinal cylinder 2343, a third primary vertical cylinder 2341 and a third secondary vertical cylinder 2342.

The operation process includes the following steps in sequence:

S1: The initial state of the main lifting cylinder 232 is the extended state; the initial states of the first primary horizontal cylinder 2330, the first secondary horizontal cylinder 2333, the first primary vertical cylinder 2331, the second primary horizontal cylinder 2335, the second secondary horizontal cylinder 2338, the second primary vertical cylinder 2336, the third primary longitudinal cylinder 2340, the third secondary longitudinal cylinder 2343, and the third primary vertical cylinder 2341 are all in the retracted state; the initial states of the first secondary vertical cylinder 2332, the second secondary vertical cylinder 2337, and the third secondary vertical cylinder 2342 are all in the extended state;

S2: The external mold carrying unit 21 carries the intermediate finished product of the bulb and enters the folding station. Here, in order to ensure that the position of the bulb intermediate product is stable when receiving folding, step S2 may include a sub-step S20: after the bulb intermediate product enters the folding station, the clamping assembly The intermediate finished product of the bulb is clamped and stabilized;

S3: First, the heating component heats up; then the first primary vertical cylinder 2331, the second primary vertical cylinder 2336, and the third primary vertical cylinder 2341 all extend the push rods, and then the first primary transverse cylinder 2330, The second primary transverse cylinder 2335 and the third primary longitudinal cylinder 2340 both extend the push rod. At this time, all the strip-shaped metal ridges are moved to the lower side of the plastic film consumables in the area where the finished product in the middle of the bulb needs to be processed, and then the first primary vertical cylinder The upward cylinder 2332, the second secondary vertical cylinder 2337, and the third secondary vertical cylinder 2342 are all retracted upward, so that all the strip-shaped metal ridges are close to the plastic film consumables in the area to be processed, allowing the plastic film consumables to be heated soften; after that, the main lifting cylinder 232 contracts upward to lift all the heating folding knives upward, so that the area to be processed of the plastic film consumables is bent upward; finally, the first secondary transverse cylinder 2333 and the second secondary transverse cylinder 2338 , the third secondary longitudinal cylinder 2343 both extend the push rod, and bend the plastic film consumables that have been turned upward toward the interior of the finished product in the middle of the bulb;

S4: first primary transverse cylinder 2330, first secondary transverse cylinder 2333, first primary vertical cylinder 2331, first secondary vertical cylinder 2332, second primary transverse cylinder 2335, second secondary transverse cylinder 2338, The second primary vertical cylinder 2336, the second secondary vertical cylinder 2337, the third primary longitudinal cylinder 2340, the third secondary longitudinal cylinder 2343, the third primary vertical cylinder 2341, the third secondary longitudinal cylinder 2343 and the main lifting cylinder 232 reset to the initial state described in step S1;

S5: The external mold carrying unit 21 transports the intermediate finished product of the bulb away from the folding station.

Correspondingly, if sub-step S20 is executed when implementing the method of use, sub-step S50 needs to be executed before S5: the clamping assembly retracts and resets to release the clamping of the intermediate product of the bulb shell;

The electrical control ends of all actuators of the automatic folding device of the present invention are electrically connected to the electronic control unit installed inside the frame 1; the air source interfaces of all cylinders are connected to an external compressed air source. In addition, the present invention has a visual operation module 11, which can be a touch screen, or a plurality of operation buttons with a display screen. The operation module 11 is electrically connected to the electronic control module. The present invention is powered by an external power grid, and a power supply module that can convert AC power into DC power is also installed inside the frame 1.

The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims (2)

1. A method of using an automatic hemming device comprising:

the automatic flanging device comprises a portal frame and a plurality of flanging units, wherein the portal frame is provided with a main lifting driving device, a transverse frame, a longitudinal frame and a clamping assembly; the portal frame is provided with a flanging station, the transverse frame is provided with a first flanging unit and a second flanging unit, and the longitudinal frame is provided with a third flanging unit; the first edge folding unit and the second edge folding unit respectively comprise heating parts, and each heating part comprises a strip-shaped metal convex rib; a first movable arm assembly is arranged between the first edge folding unit and the transverse frame, a second movable arm assembly is arranged between the second edge folding unit and the transverse frame, and a third movable arm assembly is arranged between the third edge folding unit and the longitudinal frame; the first movable arm assembly comprises a first primary transverse cylinder, a first secondary transverse cylinder, a first primary vertical cylinder and a first secondary vertical cylinder; the second movable arm assembly comprises a second primary transverse cylinder, a second secondary transverse cylinder, a second primary vertical cylinder and a second secondary vertical cylinder; the third movable arm assembly comprises a third primary longitudinal cylinder, a third secondary longitudinal cylinder, a third primary vertical cylinder and a third secondary vertical cylinder;

the using method of the automatic flanging device comprises the following steps:

s1, the initial state of a main lifting cylinder is an extending state; the initial states of the first primary transverse cylinder, the first secondary transverse cylinder, the first primary vertical cylinder, the second primary transverse cylinder, the second secondary transverse cylinder, the second primary vertical cylinder, the third primary longitudinal cylinder, the third secondary longitudinal cylinder and the third primary vertical cylinder are all retraction states; the initial states of the first secondary vertical cylinder, the second secondary vertical cylinder and the third secondary vertical cylinder are all in an extending state;

s2: the outer mould carrying unit carries the intermediate finished product of the bulb shell and enters the flanging station;

s3: firstly, heating the heating component; then the first primary vertical cylinder, the second primary vertical cylinder and the third primary vertical cylinder extend out of the push rod, then the first primary transverse cylinder, the second primary transverse cylinder and the third primary longitudinal cylinder extend out of the push rod, at the moment, all the strip-shaped metal ribs are moved to the lower side of plastic film consumable parts of a to-be-processed area of a bulb shell intermediate finished product, and then the first secondary vertical cylinder, the second secondary vertical cylinder and the third secondary vertical cylinder retract upwards, so that all the strip-shaped metal ribs are attached to the plastic film consumable parts of the to-be-processed area, and the plastic film consumable parts are heated and softened; afterwards, the main lifting cylinder is contracted upwards, and all heating flanging knives are lifted upwards, so that the plastic film consumable is bent upwards; finally, the first secondary transverse cylinder, the second secondary transverse cylinder and the third secondary longitudinal cylinder extend out of the push rod, and the plastic film consumable which is turned up upwards is bent into the bulb shell intermediate product;

s4: the first primary transverse cylinder, the first secondary transverse cylinder, the first primary vertical cylinder, the first secondary vertical cylinder, the second primary transverse cylinder, the second secondary transverse cylinder, the second primary vertical cylinder, the second secondary vertical cylinder, the third primary longitudinal cylinder, the third secondary longitudinal cylinder, the third primary vertical cylinder, the third secondary longitudinal cylinder and the main lifting cylinder are reset to the initial state in the step S1;

s5: an external mold carrying unit carries the intermediate blister product away from the flanging station.

2. A method of using an automatic hemming device of claim 1 wherein:

step S2 includes a substep S20: after the intermediate finished product of the bulb shell enters the flanging station, the clamping assembly clamps and stabilizes the intermediate finished product of the bulb shell;

step S5 includes a substep S50: before carrying out the intermediate product of the bulb shell away from the flanging station, the clamping assembly is retracted and reset to release the clamping of the intermediate product of the bulb shell.