Automatic bag turning device and operation method thereof

Abstract

The invention discloses an automatic bag-turning device and an operation method thereof. The automatic bag-turning device comprises: a chassis, a platform mechanism, a hot pressing mechanism, a pushing mechanism and a bag-turning mold. The platform mechanism and the hot pressing mechanism are arranged on the chassis. The bag-turning mold comprises an upper mold and a lower mold. The lower mold is arranged on the platform mechanism, and the upper mold is arranged below the hot pressing mechanism. The pushing mechanism is arranged on a side of the hot pressing mechanism corresponding to the lower mold. The invention can realize the automatic bag-turning operation of flexible circuit board products, replace manual operations, and realize intelligent manufacturing. The invention arranges multiple groups of mutually matching pushing members, top strips and hot pressing components, and a single execution can complete the bag-turning operation of multiple unit products. The production efficiency is high. One person can operate at least two devices, which can greatly reduce manpower. The invention can improve the product bag-turning accuracy and product processing quality. The automatic bag-turning of the equipment has good product consistency.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board processing, and in particular to an automatic package turning device for a flexible circuit board and an operating method thereof. Background Art

[0002] Circuit boards, such as flexible circuit boards and software-integrated boards, have a wide range of applications in the field of wearable smart electronic products due to their flexibility, lightness, and thinness. For example, smart wearable electronic products such as Bluetooth headsets and smart watches require 180-degree folding and assembly due to their highly integrated design and volume. Existing product folding is mainly done manually, with each person completing about 100 PCS of unit products per hour. The production efficiency is extremely low and it takes up a lot of manpower. The maximum folding accuracy of manual folding is ±0.3mm, which is relatively low. The quality of manual products is not uniform and cannot meet product requirements. In addition, manual operation can easily cause products to be wrinkled and scrapped, resulting in poor product quality and low yield. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic bag turning device which can replace manual operation, has high production efficiency, good product consistency and can improve product quality.

[0004] In order to achieve the above object, the solution of the present invention is:

[0005] An automatic bag turning device comprises a chassis, a platform mechanism, a hot pressing mechanism, a pushing mechanism and a bag turning mold, wherein the platform mechanism and the hot pressing mechanism are arranged on the chassis, the bag turning mold comprises an upper mold and a lower mold, the lower mold is arranged on the platform mechanism, the upper mold is arranged below the hot pressing mechanism, and the pushing mechanism is arranged on a side of the hot pressing mechanism corresponding to the upper mold;

[0006] The platform mechanism has a platform lifting assembly, which includes a lifting cylinder, a lifting plate, a mounting column and a lifting cylinder with a lifting bar. The push plate of the lifting cylinder is arranged upward and connected to the lifting plate, so that the lifting plate moves up and down with the push plate of the lifting cylinder. The lifting plate is provided with a mounting column and a lifting cylinder with a lifting bar. The lower mold of the bag turning mold is arranged on the mounting column, and the lifting cylinder with a lifting bar is arranged on the lifting plate below the corresponding lower mold, and its push rod is arranged upward.

[0007] The hot pressing mechanism is arranged on the chassis above the stage mechanism, and the hot pressing mechanism has an upper mold mounting plate and a hot pressing assembly. The upper mold of the bag-turning mold is arranged on the upper mold mounting plate, and at least one hot pressing assembly is arranged above the upper mold mounting plate. The hot pressing assembly has a lower pressure cylinder and a hot pressing module. A hot pressing head is arranged at the bottom of the hot pressing module. The upper part of the hot pressing module is connected to the lower pressure cylinder, so that the lower pressure cylinder drives the hot pressing module to move up and down.

[0008] The pushing mechanism includes a pushing linear module and a pushing member mounting plate, at least one pushing member is installed at the front end of the pushing member mounting plate, and the pushing member corresponds to the hot pressing assembly of the hot pressing mechanism one by one;

[0009] The upper mold includes a pressing plate and the pushing member, the pressing plate is provided with at least one push rod through groove corresponding to the shape of the pushing member, the bottom end opening of the push rod through groove is for the top strip to penetrate, the pressing plate is provided with a hot pressing through groove above the push rod through groove, the hot pressing through groove is connected with the push rod through groove up and down, the hot pressing through groove is for the hot pressing head to pass through, and the pushing member is provided with a hot pressing head through groove for the hot pressing head to pass through;

[0010] The lower mold includes a carrier plate, a top strip plate and the top strip, the bottom end of at least one top strip is arranged on the top strip plate, the top strip corresponds one by one to the push rod through groove of the upper mold pressure plate, the carrier plate is placed on the mounting column of the carrier mechanism and is located above the top strip plate, and the carrier plate is provided with a top strip through groove for the top strip to pass through.

[0011] Furthermore, the carrier mechanism includes a base, a carrier linear module, a guide rail mounting frame, a carrier linear guide and the carrier lifting assembly; the base is fixed on the chassis, the carrier linear module is fixedly arranged on the base, the guide rail mounting frame is arranged above the carrier linear module, the carrier linear guide is fixedly arranged on the guide rail mounting frame, the upper mold mounting plate is located at the upper position within the travel range of the carrier linear module, the carrier lifting assembly is slidably arranged on the carrier linear guide and connected to the carrier linear module, so that the carrier linear module drives the carrier lifting assembly to reciprocate along the carrier linear guide.

[0012] Furthermore, the platform lifting assembly of the platform mechanism also includes a slide, the bottom of the slide is provided with a slider that cooperates with the platform linear guide rail and a transmission arm connected to the platform linear module, the guide rail mounting frame is provided with a slot for the transmission arm to pass through and for the transmission arm to reciprocate along the platform linear guide rail, so that the platform linear module drives the slide to reciprocate along the platform linear guide rail through the transmission arm, and a lifting cylinder is respectively installed on both sides of the slide.

[0013] Furthermore, in order to position the product more flatly on the lower mold, the carrier lifting assembly also includes a carrier and a carrier mounting frame. The carrier mounting frame is arranged on the lifting plate, and the carrier is arranged on the top of the carrier mounting frame. The area of ​​the carrier corresponding to the lower mold is hollowed out for placing the product, which facilitates product operation and ensures product quality.

[0014] Furthermore, the platform mechanism also includes a height detection component, which includes a micrometer lifting cylinder and a micrometer; the micrometer includes a micrometer body and a micrometer anvil, the fixed part of the micrometer lifting cylinder is installed on one side of the slide, and the sliding part of the micrometer lifting cylinder is connected to the lifting cylinder; the micrometer anvil is installed on one side of the fixed part of the micrometer lifting cylinder, and the micrometer body is correspondingly installed on one side of the sliding part of the micrometer lifting cylinder, the micrometer lifting cylinder drives the micrometer body to lift, so that the micrometer body is separated from the micrometer anvil, and after reaching the specified height, the required lifting height can be read on the micrometer.

[0015] Furthermore, the hot pressing mechanism includes a pillar, the upper mold mounting plate, a hot pressing mounting plate, at least one hot pressing component and a downward pressure control component connected to the hot pressing component; at least two pillars are fixedly mounted on the chassis on both sides of the corresponding carrier lifting components, the upper mold mounting plate is arranged on the pillar, the upper mold is arranged on the upper mold mounting plate and is located at the upper position within the travel range of the carrier linear module, the hot pressing mounting plate is arranged on the pillar and is located above the upper mold, and the downward pressure control component is arranged at the top of the pillar and connected to the hot pressing component.

[0016] Furthermore, the hot pressing assembly includes the pressing cylinder, the module mounting block, the hot pressing module, the linear bearing and the guide column; the pressing cylinder is fixedly arranged on the hot pressing mounting plate, the piston rod of the pressing cylinder passes downward through the hot pressing mounting plate and is connected to the module mounting block, the guide column is arranged on the top surface of the module mounting block and passes through the hot pressing mounting plate, the linear bearing is sleeved on the guide column and installed on the hot pressing mounting plate, the hot pressing module includes a connecting block, a heating block and the hot pressing head; the connecting block is arranged at the bottom of the module mounting block, the heating block is arranged at the bottom of the connecting block, the hot pressing head is arranged at the bottom of the heating block, and the heating block is connected to the heating device.

[0017] Furthermore, the downward pressure control component includes a top plate, a force pressure reducing valve, a vacuum solenoid valve and a vacuum generator; the top plate is arranged at the top of the pillar and is located above the hot pressing mounting plate, the vacuum solenoid valve is connected to the vacuum generator, the force pressure reducing valve and the vacuum generator are connected to the downward pressure cylinder, and the force pressure reducing valve controls the downward pressure of the hot pressing head through the downward pressure cylinder to be within a preset pressure value range to prevent the product from being crushed and damaged.

[0018] Furthermore, the pushing mechanism includes a module mounting plate, the pushing linear module, a pushing linear guide rail and the pushing member mounting plate; the module mounting plate is arranged below the hot pressing mounting plate of the hot pressing mechanism, the pushing linear module and the pushing linear guide rail are arranged below the module mounting plate, and the pushing member mounting plate is slidably arranged on the pushing linear guide rail and connected to the pushing linear module, so that the pushing linear module can drive the pushing member mounting plate to reciprocate along the pushing linear guide rail.

[0019] Furthermore, the pushing mechanism also includes a floating joint, one end of which is arranged at the front end of the pushing member mounting plate, and the other end is connected to the pushing member. The floating joint can make the pushing member move more smoothly.

[0020] Furthermore, the pushing mechanism also includes a limit sensing module, which includes a sensor and a sensor sheet. The sensor module is arranged at a pushing safety limit position of the movement trajectory of the pushing member, wherein the sensor is arranged below the module mounting plate, the sensor sheet is arranged at a corresponding position of the pushing member mounting plate and senses the passing of the sensor to ensure the safe operation of the pushing mechanism.

[0021] Furthermore, the pushing member of the upper mold includes a push rod and a mounting block; the front end of the push rod is provided with the hot pressing head groove, the upper part of the front end surface of the push rod is provided with a top plate protrusion, and the front end bottom surface of the push rod is provided with a pressure plate protrusion.

[0022] Furthermore, a guide groove protrusion is also provided on the bottom surface of the push rod, and the guide groove protrusion is embedded in the bottom end opening of the push rod through groove to further improve the movement stability of the push member.

[0023] Furthermore, the push rod slot and the push member are processed by wire cutting, and the single-side spacing between the two is 0.02mm. The top bar and the top bar slot of the carrier plate are processed by wire cutting, and the single-side spacing between the two is 0.02mm, which further improves the product packaging accuracy.

[0024] Furthermore, a product raised clearance groove is provided on the bottom surface of the pressing plate. The product raised clearance groove is designed according to the raised contact surface between the product and the pressing plate to prevent the product from being crushed and damaged when the upper mold and the lower mold are pressed, thereby further ensuring the product processing quality.

[0025] Furthermore, the lower mold also includes a top strip guide column, which is arranged between the carrier plate and the top strip plate to play a guiding role.

[0026] Furthermore, the carrier plate of the lower mold and the pressure plate of the upper mold are also provided with matching mold pins and positioning grooves, and the matching of the mold pins and the positioning grooves can improve the mold clamping accuracy of the lower mold and the upper mold.

[0027] Another object of the present invention is to overcome the deficiencies of the prior art and to provide an operating method for automatic bag turning equipment that can replace manual operation, has high production efficiency, good product consistency, and can improve product quality.

[0028] In order to achieve the above object, the solution of the present invention is:

[0029] An operating method of an automatic bag turning device comprises the following steps:

[0030] Step S: Before use, install the pressing plate of the upper mold on the upper mold mounting plate of the hot pressing mechanism, and install the pusher of the upper mold on the pusher mounting plate of the pushing mechanism; install the lower mold on the carrier lifting assembly of the carrier mechanism through the carrier plate of the lower mold; position the product on the carrier plate of the lower mold, and start the automatic package turning device;

[0031] Step B: The lifting cylinder of the platform lifting assembly drives the lower mold to push up, so that the upper mold and the lower mold are positioned and molded;

[0032] Step C: The top bar lifting cylinder of the platform lifting assembly drives the top bar to push up, and the top bar passes through the carrier plate to push the flipping part of the product into the push rod slot and the hot pressing slot of the pressing plate;

[0033] Step D: The pushing linear module of the pushing mechanism drives the pushing member to move so that its end is close to the top bar, and the pushing member is located above the top bar and supports the middle and upper part of the product's bag turning part;

[0034] Step E: The top bar lifting cylinder of the carrier lifting assembly drives the top bar to descend and return to its position, and the pushing linear module of the pushing mechanism drives the pushing member to continue to move forward, so that the pushing member folds the flipping part of the product onto the fitting part of the product until the hot pressing head slot of the pushing member is located below the hot pressing head of the hot pressing assembly;

[0035] Step F: The downward pressure cylinder of the hot pressing assembly drives the hot pressing head to press downward, and the bottom end of the hot pressing head passes through the hot pressing groove of the pressing plate and the hot pressing head groove of the pushing member to hot press the turned-over part of the product onto the fitting part of the product;

[0036] Step G: The downward pressure cylinder of the hot pressing assembly drives the hot pressing head to rise and return to its original position, and the pushing linear module of the pushing mechanism drives the pushing member to retreat and return to its original position;

[0037] Step H: The lifting cylinder of the platform lifting assembly drives the lower mold to descend and return to its original position, and the upper mold is separated from the lower mold;

[0038] Step J: Position the other areas of the product to be processed on the carrier of the lower mold, repeat steps B to H until all unit products on the product are processed and remove the product.

[0039] Further, the platform mechanism is provided with a platform linear module and a platform linear guide rail, the upper mold mounting plate is located at an upper position within the travel range of the platform linear module, and the platform lifting assembly is slidably arranged on the platform linear guide rail and connected to the platform linear module; the step B includes step A before, step H includes step I after, and the steps repeated in step J are steps A to I;

[0040] Step A: The carrier linear module of the carrier mechanism drives the carrier lifting assembly to the bottom of the hot pressing mechanism, so that the lower mold is located directly below the upper mold;

[0041] Step I: The carrier linear module of the carrier mechanism drives the carrier lifting assembly to exit.

[0042] After adopting the above scheme, the automatic bag turning equipment of the present invention can realize the automatic bag turning operation of flexible circuit board products, replace manual operation, and realize intelligent manufacturing. The present invention sets multiple groups of mutually matching pushers, top strips and hot pressing components, and can complete the bag turning operation of multiple unit products in a single execution. The production efficiency is high. One person can operate at least two devices, which can greatly reduce manpower. In addition, the automatic bag turning of the equipment replaces manual operation, and the consistency of the products is good, which can improve the product bag turning accuracy and improve the product processing quality.

[0043] The top strip of the lower mold of the bag-turning mold of the present invention lifts up the bag-turning part of the product, which is a key step in realizing the bag-turning processing. Cooperating with the pushing member of the upper mold, the progressive pushing realizes the pre-flipping and folding of the product. The hot pressing head presses down to hot-press the bag-turning part onto the fitting part of the product to realize the bag-turning processing of the product. The working principle of the present invention is simple, easy to realize and can be industrialized. The push rod slot and the pushing member of the upper mold can also be processed by slow wire cutting, and the single-side spacing between the two is 0.02mm. The top strip and the top strip slot of the carrier plate are processed by slow wire cutting, and the single-side spacing between the two is 0.02mm, which further improves the product bag-turning accuracy.

[0044] The pushing mechanism of the present invention adopts a pushing linear module, so that the pushing member can be accurately advanced to a specified position, cooperate with a top strip and a hot pressing head to accurately complete the product packaging processing, thereby improving the product packaging accuracy.

[0045] The carrier mechanism of the present invention adopts a carrier linear module to accurately transfer the lower mold to the bottom of the upper mold, thereby ensuring the mold closing accuracy of the lower mold and the upper mold.

[0046] The carrier lifting assembly of the present invention adopts a lifting cylinder to lift the lower mold, and can further adopt a height detection assembly to set and detect the lifting height of the lower mold to ensure that the lower mold is lifted into place, protect the bag turning mold and prevent the product from being crushed and damaged. Of course, a linear module can also be used to complete high-precision lifting action, but the cost is relatively high.

[0047] Each hot pressing assembly of the hot pressing mechanism of the present invention can be controlled independently. If there are defective unit products on the product, the corresponding hot pressing assembly can be turned off, thereby reducing the number of times the hot pressing head is used and extending the service life of the hot pressing head.

[0048] The hot pressing mechanism of the present invention adopts a force-controlling pressure reducing valve to control the downward pressure of the hot pressing head within a preset pressure value range to prevent the product from being crushed and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a three-dimensional diagram of the automatic bag turning device of the present invention.

[0050] Figure 2 It is a front side view of the automatic bag turning device of the present invention.

[0051] Figure 3 It is a top view of the automatic bag turning device of the present invention.

[0052] Figure 4 It is the left side diagram of the automatic bag turning device of the present invention.

[0053] Figure 5 It is a three-dimensional diagram of the stage mechanism of the present invention.

[0054] Figure 6 It is a front view of the stage mechanism of the present invention.

[0055] Figure 7 It is a top view of the stage mechanism of the present invention.

[0056] Figure 8 It is a left view of the stage mechanism of the present invention.

[0057] Fig. 9 It is a three-dimensional diagram of the hot pressing mechanism of the present invention.

[0058] Fig.10 It is a front view of the hot pressing mechanism of the present invention.

[0059] Fig.11 It is the left side diagram of the hot pressing mechanism of the present invention.

[0060] Fig.12 It is a three-dimensional diagram of the hot pressing assembly of the present invention.

[0061] Fig.13 It is a three-dimensional diagram of the pushing mechanism of the present invention.

[0062] Fig.14 It is a front view of the pushing mechanism of the present invention.

[0063] Fig.15 It is a bottom view of the pushing mechanism of the present invention.

[0064] Fig.16 It is the right side view of the pushing mechanism of the present invention.

[0065] Fig.17 It is a three-dimensional diagram of the bag turning mold of the present invention.

[0066] Fig.18 It is a front view of the bag turning mold of the present invention.

[0067] Fig.19 It is a top view of the bag turning mold of the present invention.

[0068] Fig. 20 It is the left side view of the bag turning mould of the present invention.

[0069] Fig.21 It is a three-dimensional diagram of the pusher of the present invention.

[0070] Fig. 22 It is a right side view of the pusher of the present invention.

[0071] Fig.23 It is a schematic diagram of the working principle of the present invention.

[0072] Fig.24 It is a schematic diagram of the local product of the present invention before being turned over.

[0073] Fig.25 This is a schematic diagram of some unit products of the local product of the present invention after being turned over. DETAILED DESCRIPTION

[0074] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0075] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “X”, “Y”, “Z”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0077] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0080] like Figures 1 to 4 As shown, the present invention is an automatic bag turning device 1 including a chassis 10, a platform mechanism 20, a hot pressing mechanism 30, a pushing mechanism 40 and a bag turning mold 100, the platform mechanism 20 and the hot pressing mechanism 30 are arranged on the chassis 10, the bag turning mold 100 includes an upper mold 110 and a lower mold 120, the lower mold 120 is arranged on the platform mechanism 20, the upper mold 110 is arranged on the hot pressing mechanism 30, and the pushing mechanism 40 is arranged on a side of the hot pressing mechanism 30 corresponding to the upper mold 110.

[0081] The chassis 10 is provided with a human-machine interface 11 and a heating thermostat 12 . The heating thermostat 12 is used to set and control the temperature of the heat pressing head 3433 of the heat pressing mechanism 30 .

[0082] like Figures 5 to 8 As shown, the carrier mechanism 20 includes a base 21, a carrier linear module 22, a guide rail mounting frame 23, a carrier linear guide 24 and a carrier lifting assembly 25; the base 21 is fixed on the chassis 10, the carrier linear module 22 is fixedly set on the base 21, the guide rail mounting frame 23 is set above the carrier linear module 22, and the carrier linear guide 24 is fixedly set on the guide rail mounting frame 23.

[0083] The platform lifting assembly 25 includes a slide 251, a lifting cylinder 252, a lifting plate 253, a mounting column 254 and a lifting cylinder 255. The bottom of the slide 251 is provided with a slider 2511 that cooperates with the platform linear guide rail 24 and a transmission arm 2512 connected to the platform linear module 22. The guide rail mounting frame 23 is provided with a slot 231 for the transmission arm 2512 to pass through and for the transmission arm 2512 to reciprocate along the platform linear guide rail 24, so that the platform linear module 22 can drive the slide 251 to reciprocate along the platform linear guide rail 24 through the transmission arm 2512. A lifting cylinder 252 is respectively provided on the left and right sides of the slide 251, and the push plate of the lifting cylinder 252 is arranged upward and connected to the lifting plate 253, so that the lifting plate 253 moves up and down with the push plate of the lifting cylinder 252. The lifting plate 253 is provided with a mounting column 254 and a top bar lifting cylinder 255. The lower mold 120 of the bag turning mold 100 is set on the mounting column 254, and the top bar lifting cylinder 255 is set on the lifting plate 253 below the corresponding lower mold 120. The push rod of the top bar lifting cylinder 255 is set upward and passes through the lifting plate 253.

[0084] Since the flexible circuit board product is soft, if the product is only placed on the lower mold 120 for processing, the part of the product protruding from the lower mold 120 will sag and be difficult to process. In order to position the product more flatly on the lower mold 120, the platform lifting assembly 25 also includes a platform 256 and a platform mounting frame 257. The platform mounting frame 257 is arranged on the lifting plate 253, and the platform 256 is arranged on the top of the platform mounting frame 257. The platform 256 is hollowed out in the area corresponding to the lower mold 120 for placing the product, facilitating product operation and ensuring product quality.

[0085] like Figure 5 and Figure 6 As shown, the platform mechanism 20 also includes a height detection component 26, which includes a micrometer lifting cylinder 261 and a micrometer 262; the fixed part of the micrometer lifting cylinder 261 is installed on one side of the slide 251, and the sliding part of the micrometer lifting cylinder 261 is connected to the lifting cylinder 252; the micrometer 262 includes a micrometer body 2621 and a micrometer anvil 2622, and the micrometer anvil 2622 is installed on one side of the fixed part of the micrometer lifting cylinder 261, and the micrometer body 2621 is correspondingly installed on one side of the sliding part of the micrometer lifting cylinder 261. The micrometer lifting cylinder 261 drives the micrometer body 2621 to lift, so that the micrometer body 2621 is separated from the micrometer anvil 2622. After reaching the specified height, the required lifting height can be read on the micrometer 262. The height of the lifting plate 253 and the lower mold 120 lifted by the lifting cylinder 252 is set and detected accordingly to ensure that the lower mold 120 is lifted into place, protect the bag turning mold and prevent the product from being crushed and damaged.

[0086] like Figures 9 to 11As shown, the hot pressing mechanism 30 includes a pillar 31, an upper mold mounting plate 32, a hot pressing mounting plate 33, a hot pressing assembly 34 and a lower pressure control assembly 35; at least two pillars 31 are fixedly mounted on the chassis 10 on both sides of the corresponding carrier lifting assembly 25, the upper mold mounting plate 32 is arranged on the pillar 31, the upper mold 110 is arranged on the upper mold mounting plate 32 and is located at an upper position within the travel range of the carrier linear module 22, the hot pressing mounting plate 33 is arranged on the pillar 31 and is located above the upper mold 110, and at least one hot pressing assembly 34 is arranged on the hot pressing mounting plate 33.

[0087] like Fig.12 As shown, the hot pressing assembly 34 includes a pressing cylinder 341, a module mounting block 342, a hot pressing module 343, a linear bearing 344 and a guide column 345; the pressing cylinder 341 is fixedly arranged on the hot pressing mounting plate 33, the piston rod 3411 of the pressing cylinder 341 passes downward through the hot pressing mounting plate 33 and is connected to the module mounting block 342, the guide column 345 is arranged on the top surface of the module mounting block 342 and passes through the hot pressing mounting plate 33, and the linear bearing 344 is sleeved on the guide column 345 and installed on the hot pressing mounting plate 33. The hot pressing module 343 includes a connection block 3431, a heating block 3432 and a hot pressing head 3433; the connection block 3431 is arranged at the bottom of the module mounting block 342, the heating block 3432 is arranged at the bottom of the connection block 3431, the hot pressing head 3433 is arranged at the bottom of the heating block 3432, the heating block 3432 is connected to the heating device and heats the hot pressing head 3433 to a preset temperature. In order to improve work efficiency, the hot pressing assembly 34 can be provided with multiple groups.

[0088] like Fig. 9 As shown, the downward pressure control assembly 35 includes a top plate 351, a force pressure reducing valve 352, a vacuum solenoid valve 353 and a vacuum generator 354; the top plate 351 is arranged at the top of the support 31 and is located above the hot pressing mounting plate 33, the force pressure reducing valve 352, the vacuum solenoid valve 353 and the vacuum generator 354 cooperate to control each downward pressure cylinder 341 to independently drive the hot pressing module 343 to press down and rise, and the force pressure reducing valve 352 controls the downward pressure of the hot pressing head 3433 through the downward pressure cylinder 341 to be within the preset pressure value range to prevent the product from being crushed and damaged. The hot pressing mechanism 30 also includes an exhaust fan 39 for heat dissipation of the hot pressing assembly 34.

[0089] like Figures 13 to 16As shown, the pushing mechanism 40 includes a module mounting plate 41, a pushing linear module 42, a pushing linear guide rail 43 and a pushing member mounting plate 44; the module mounting plate 41 is arranged below the hot pressing mounting plate 33 of the hot pressing mechanism 30, the pushing linear module 42 and the pushing linear guide rail 43 are arranged below the module mounting plate 41, and the pushing member mounting plate 44 is slidably arranged on the pushing linear guide rail 43 and connected to the pushing linear module 42, so that the pushing linear module 42 can drive the pushing member mounting plate 44 to reciprocate along the pushing linear guide rail 43. The front end of the pushing member mounting plate 44 is connected to the pushing member 112, and a plurality of pushing members 112 can be provided, and the number of pushing members 112 corresponds to the number of hot pressing components 34 of the hot pressing mechanism 30. In order to facilitate the pushing member 112 to be better installed on the pushing member mounting plate 44, the pushing mechanism 40 also includes a floating joint 45, and the floating joint 45 can make the pushing member 112 move more smoothly.

[0090] Furthermore, the pushing mechanism 40 also includes a limit sensing module 46, which includes a sensor 461 and a sensor sheet 462. The sensor module 46 is arranged at a pushing safety limit position of the movement trajectory of the pushing member 112, wherein the sensor 461 is arranged below the module mounting plate 41, and the sensor sheet 462 is arranged at a corresponding position of the pushing member mounting plate 44 and senses the passing of the sensor to ensure the safe operation of the pushing mechanism 40.

[0091] like Figures 17 to 22 As shown, the bag turning mold 100 includes an upper mold 110 and a lower mold 120 ; the upper mold 110 includes a pressing plate 111 and a pushing member 112 .

[0092] like Fig.21 and Fig. 22 As shown, the push member 112 includes a push rod 1121 and a mounting block 1122; a hot press head slot 1123 is provided at the front end of the push rod 1121, and the width and length of the hot press head slot 1123 are designed to be greater than the width and length of the hot press head 3433, so that the hot press head 3433 can pass through; a top plate protrusion 1124 is provided on the upper part of the front end surface of the push rod 1121, so that when the push member 112 moves to a specified position, the top plate protrusion 1124 can support the flipping part 211 of the product; a pressing plate protrusion 1125 is provided on the bottom surface of the front end of the push rod 1121, and when the push member 112 pushes, the pressing plate protrusion 1125 folds the flipping part 211 of the product onto the fitting part 212 of the product;

[0093] At least one push rod through groove 1111 is longitudinally opened at the lower part of the pressing plate 111. The shape of the push rod through groove 1111 is designed to match the pushing member 112. The front and rear ends and the bottom end of the push rod through groove 1111 form openings. The bottom opening of the push rod through groove 1111 is for the top strip 124 to penetrate. The width of the bottom opening of the push rod through groove 1111 is larger than the top strip 124 of the lower mold and the flipping part 211 of the product (matching Fig.24 and Fig.25 ) in width, the position and number of the push rod slots 1111 are designed according to the product processing requirements, the push rod slots 1111 are used to accommodate the push member 112 and enable it to move stably in the push rod slots 1111, so that the top strip 124 can pass through the push rod slots 1111 to push the flipped part 211 of the product into the pressing plate 111.

[0094] A hot pressing groove 1112 is provided on the pressing plate 111 above the push rod groove 1111. The hot pressing groove 1112 is connected with the push rod groove 1111 from top to bottom. The width and length of the hot pressing groove 1112 are greater than the width and length of the hot pressing head 3433 and the product's flipping part 211, so that the top strip 124 can push the product's flipping part 211 into the hot pressing groove 1112, so that the hot pressing head 3433 can pass through the hot pressing groove 1112. Furthermore, the hot pressing groove 1112 can be designed to be lengthened to play a role in heat dissipation.

[0095] Furthermore, a guide groove protrusion 1126 is also provided on the bottom surface of the push rod 1121 , and the guide groove protrusion 1126 is embedded in the bottom end opening of the push rod through groove 1111 to further improve the movement stability of the push member 112 .

[0096] Furthermore, the push rod slot 1111 and the push member 112 are processed by wire cutting, and the single-side spacing between the two is 0.02mm. The top bar 124 and the top bar slot of the carrier plate 121 are processed by wire cutting, and the single-side spacing between the two is 0.02mm, which further improves the product packaging accuracy.

[0097] Furthermore, a product protrusion clearance groove 1113 is also opened on the bottom surface of the pressing plate 111. The product protrusion clearance groove 1113 is designed according to the protrusion of the contact surface between the product and the pressing plate to prevent the product from being crushed and damaged when the upper mold 110 and the lower mold 120 are closed, further ensuring the product processing quality.

[0098] The lower mold 120 includes a carrier plate 121, a top strip guide column 122, a top strip plate 123 and a top strip 124; the carrier plate 121 is provided with a top strip through groove (not shown in the figure) for the top strip 124 to pass through; the top strip plate 123 is arranged below the carrier plate 121 so as to be movable up and down through the top strip guide column 122, the top end of the top strip guide column 122 is fixedly arranged below the carrier plate 121, and a nut is arranged at the bottom end of the top strip guide column 122 to prevent the top strip plate 123 from falling off, at least one The bottom end of the top strip 124 is arranged on the top strip plate 123, and the top strip 124 corresponds one-to-one to the push rod slot 1111 of the upper mold pressure plate 111, and the top end of the top strip 124 is placed in the top strip slot corresponding to the carrier plate 121. When in use, the top end of the top strip 124 passes through the carrier plate 121 to lift the flipping part 211 of the product on the carrier plate 121. The position and number of the top strip 124 are set corresponding to the push rod slot 1111 of the pressure plate 111 of the upper mold 110.

[0099] A clamping pin 1211 is provided on the carrier plate 121 , and a positioning groove corresponding to the clamping pin 1211 is provided on the pressure plate 111 . The clamping pin 1211 cooperates with the positioning groove to improve the clamping accuracy of the lower mold 120 and the upper mold 110 .

[0100] like Figure 1 and Fig.23 As shown, the present invention also discloses an operating method of the above-mentioned automatic bag turning device, which comprises the following steps:

[0101] Step S: Before use, the pressing plate 111 of the upper mold 110 is installed on the upper mold mounting plate 32 of the hot pressing mechanism 30, and the multiple pushers 112 of the upper mold 110 are installed one by one on the pusher mounting plate 44 of the pushing mechanism 40; the lower mold 120 is installed on the mounting column 254 of the platform lifting assembly 25 of the platform mechanism 20 through the carrier plate 121 of the lower mold 120; the product 200 is positioned and placed on the carrier plate 121 of the lower mold 120, and the automatic package turning device 1 of the present invention is started;

[0102] Step A: The carrier linear module 22 of the carrier mechanism 20 drives the carrier lifting assembly 25 to the bottom of the hot pressing mechanism 30, so that the lower mold 120 is located directly below the upper mold 110;

[0103] Step B: The lifting cylinder 252 of the platform lifting assembly 25 drives the lower mold 120 to push up, so that the upper mold 120 and the lower mold 110 are positioned and molded. Fig.23 As shown in part a of;

[0104] Step C: The top bar lifting cylinder 255 of the platform lifting assembly 25 drives the top bar 124 to push up, and the top bar 124 passes through the carrier plate 121 to push the flipping part 211 of the product into the push rod groove 1111 and the hot pressing groove 1112 of the pressing plate 111, as shown in FIG. Fig.23 As shown in part b of;

[0105] Step D: The linear push module 42 of the push mechanism 40 drives the push member 112 to move so that its end is close to the top bar 124. The top plate protrusion 1124 of the push member 112 is located above the top bar 124 and supports the middle and upper part of the product's flipping part 211. Fig.23 As shown in part c of;

[0106] Step E: The top bar lifting cylinder 255 of the platform lifting assembly 25 drives the top bar 124 to descend and return to its original position, and the pushing linear module 42 of the pushing mechanism 40 drives the pushing member 112 to continue to move, so that the pressing plate protrusion 1125 of the pushing member 112 folds the product's flipping part 211 onto the product's fitting part 212 until the hot pressing head slot 1123 of the pushing member 112 is located below the hot pressing head 3433 of the hot pressing assembly 34, as shown in FIG. Fig.23 As shown in the d part;

[0107] Step F: The downward pressing cylinder 341 of the hot pressing assembly 34 drives the hot pressing head 3433 to press downward, and the bottom end of the hot pressing head 3433 passes through the hot pressing groove 1112 of the pressing plate 111 and the hot pressing head groove 1123 of the pushing member 112 to hot press the flipping part 211 of the product onto the bonding part 212 of the product. Fig.23 As shown in part e of;

[0108] Step G: The pressing cylinder 341 of the hot pressing assembly 34 drives the hot pressing head 3433 to rise and return to its original position, and the pushing linear module 42 of the pushing mechanism 40 drives the pushing member 112 to retreat and return to its original position. Fig.23 As shown in the f part;

[0109] Step H: The lifting cylinder 252 of the platform lifting assembly 25 drives the lower mold 120 to descend and return to its original position, and the upper mold 120 is separated from the lower mold 110;

[0110] Step I: The carrier linear module 22 of the carrier mechanism 20 drives the carrier lifting assembly 25 to exit;

[0111] Step J: Position another area of ​​the product 200 to be processed on the carrier plate 121 of the lower mold 120, repeat the above steps until all unit products 210 on the product 200 are processed, and then remove the product 200.

[0112] The product status before repackaging is as follows Fig.24 As shown, after the automatic bag turning device of the present invention performs a single turning process, the state of the product after turning the bag is as follows Fig.25 shown.

[0113] The automatic bag turning device of the present invention can realize automatic bag turning of products, replace manual work, and realize intelligent manufacturing. The present invention arranges multiple sets of mutually matching pushers 112, top strips 124 and hot pressing components 34, and can complete the bag turning of multiple unit products in a single execution, with high production efficiency. One person can operate at least two devices, which can greatly reduce manpower. The present invention can improve the accuracy of product bag turning and improve product processing quality.

[0114] The carrier mechanism 20 of the present invention uses a carrier linear module 22 to accurately transfer the lower mold 120 to the bottom of the upper mold 110, thereby ensuring the mold closing accuracy of the lower mold 120 and the upper mold 110;

[0115] The carrier lifting assembly 25 of the present invention uses a lifting cylinder 252 to lift the lower mold 120, and can further use a height detection assembly 26 to set and detect the lifting height of the lower mold 120 to ensure that the lower mold 120 is lifted in place, protect the bag turning mold 100 and prevent the product from being crushed and damaged. Of course, a linear module can also be used to complete a high-precision lifting action, but the cost is relatively high;

[0116] Each hot pressing assembly 34 of the hot pressing mechanism 30 of the present invention can be controlled independently. If there is a defective unit product on the product, the corresponding hot pressing assembly 34 can be turned off, thereby reducing the number of times the hot pressing head is used and extending the use time of the hot pressing head;

[0117] The hot pressing mechanism 30 of the present invention uses a force-controlling pressure reducing valve 352 to control the downward pressure of the hot pressing head 3433 within a preset pressure value range to prevent the product from being crushed and damaged;

[0118] The push mechanism 40 of the present invention adopts a push linear module 42, so that the push member 112 can be accurately advanced to a specified position, and cooperates with the top strip 124 and the hot pressing head 3433 to accurately complete the product packaging processing, thereby improving the product packaging accuracy;

[0119] The present invention adopts the bag-turning mold 100, and the top strip 124 of the lower mold 120 lifts the bag-turning part of the product, which is a key step in realizing the bag-turning process. The pusher 112 of the upper mold 110 pushes progressively to realize the pre-folding and folding of the product. The hot pressing head 3433 presses down to hot-press the bag-turning part onto the fitting part of the product to realize the bag-turning process of the product. The working principle of the present invention is simple, easy to realize, and can be industrialized. The push rod slot 1111 and the pusher 112 of the upper mold 110 can also be processed by slow wire cutting, and the single-side spacing between the two is 0.02mm, which further improves the product bag-turning accuracy.

[0120] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. An automatic bag turning device, characterized in that: include: A chassis, a platform mechanism, a hot pressing mechanism, a pushing mechanism and a bag turning mold, wherein the platform mechanism and the hot pressing mechanism are arranged on the chassis, the bag turning mold comprises an upper mold and a lower mold, the lower mold is arranged on the platform mechanism, the upper mold is arranged below the hot pressing mechanism, and the pushing mechanism is arranged on a side of the hot pressing mechanism corresponding to the upper mold; The platform mechanism has a platform lifting assembly, which includes a lifting cylinder, a lifting plate, a mounting column and a lifting cylinder with a lifting bar. The push plate of the lifting cylinder is arranged upward and connected to the lifting plate, so that the lifting plate moves up and down with the push plate of the lifting cylinder. The lifting plate is provided with a mounting column and a lifting cylinder with a lifting bar. The lower mold of the bag turning mold is arranged on the mounting column, and the lifting cylinder with a lifting bar is arranged on the lifting plate below the corresponding lower mold, and its push rod is arranged upward. The hot pressing mechanism is arranged on the chassis above the stage mechanism, and the hot pressing mechanism has an upper mold mounting plate and a hot pressing assembly. The upper mold of the bag-turning mold is arranged on the upper mold mounting plate, and at least one hot pressing assembly is arranged above the upper mold mounting plate. The hot pressing assembly has a lower pressure cylinder and a hot pressing module. A hot pressing head is arranged at the bottom of the hot pressing module. The upper part of the hot pressing module is connected to the lower pressure cylinder, so that the lower pressure cylinder drives the hot pressing module to move up and down. The pushing mechanism includes a pushing linear module and a pushing member mounting plate, at least one pushing member is installed at the front end of the pushing member mounting plate, and the pushing member corresponds to the hot pressing assembly of the hot pressing mechanism one by one; The upper mold includes a pressing plate and the pushing member, the pressing plate is provided with at least one push rod through groove corresponding to the shape of the pushing member, the bottom end opening of the push rod through groove is for the top strip to penetrate, the pressing plate is provided with a hot pressing through groove above the push rod through groove, the hot pressing through groove is connected with the push rod through groove up and down, the hot pressing through groove is for the hot pressing head to pass through, and the pushing member is provided with a hot pressing head through groove for the hot pressing head to pass through; The lower mold comprises a carrier plate, a top strip plate and the top strip, the bottom end of at least one top strip is arranged on the top strip plate, the top strip corresponds to the push rod through slot of the upper mold pressing plate one by one, the carrier plate is arranged on the mounting column of the carrier mechanism and is located above the top strip plate, and the carrier plate is provided with a top strip through slot for the top strip to pass through; The carrier plate of the lower mold and the pressure plate of the upper mold are also provided with mold pins and positioning grooves that cooperate with each other; The hot pressing mechanism comprises a support, the upper mold mounting plate, a hot pressing mounting plate, at least one hot pressing assembly and a lower pressing control assembly connected to the hot pressing assembly; The platform mechanism also includes a height detection component, which includes a micrometer lifting cylinder and a micrometer; the sliding part of the micrometer lifting cylinder is connected to the lifting cylinder.

2. The automatic bag turning device according to claim 1, characterized in that: The carrier mechanism includes a base, a carrier linear module, a guide rail mounting frame, a carrier linear guide and the carrier lifting assembly; the base is fixed on the chassis, the carrier linear module is fixedly arranged on the base, the guide rail mounting frame is arranged above the carrier linear module, the carrier linear guide is fixedly arranged on the guide rail mounting frame, the upper mold mounting plate is located at the upper position within the travel range of the carrier linear module, the carrier lifting assembly is slidably arranged on the carrier linear guide and connected to the carrier linear module, so that the carrier linear module drives the carrier lifting assembly to reciprocate along the carrier linear guide.

3. The automatic bag turning device according to claim 2, characterized in that: The platform lifting assembly of the platform mechanism also includes a slide, the bottom of the slide is provided with a slider that cooperates with the platform linear guide rail and a transmission arm connected to the platform linear module, and the guide rail mounting frame is provided with a slot for the transmission arm to pass through and for the transmission arm to reciprocate along the platform linear guide rail, so that the platform linear module drives the slide to reciprocate along the platform linear guide rail through the transmission arm, and a lifting cylinder is installed on each side of the slide.

4. The automatic bag turning device according to claim 1, characterized in that: The platform lifting assembly also includes a platform and a platform mounting frame, the platform mounting frame is arranged on the lifting plate, the platform is arranged on the top of the platform mounting frame, and the platform corresponds to the hollow design of the area of ​​the lower mold.

5. The automatic bag turning device according to claim 1, characterized in that: The micrometer includes a micrometer body and a micrometer anvil. The micrometer anvil is installed on one side of the fixed part of the micrometer lifting cylinder, and the micrometer body is correspondingly installed on one side of the sliding part of the micrometer lifting cylinder. The micrometer lifting cylinder drives the micrometer body to lift, so that the micrometer body is separated from the micrometer anvil.

6. The automatic bag turning device according to any one of claims 1 to 5, characterized in that: At least two pillars are fixedly mounted on the chassis on both sides of the corresponding carrier lifting assembly, the upper mold mounting plate is arranged on the pillar, the upper mold is arranged on the upper mold mounting plate and is located at the upper position within the travel range of the carrier linear module, the hot pressing mounting plate is arranged on the pillar and is located above the upper mold, and the downward pressure control assembly is arranged at the top of the pillar and connected to the hot pressing assembly.

7. The automatic bag turning device according to claim 6, characterized in that: The hot pressing assembly includes the pressing cylinder, the module mounting block, the hot pressing module, the linear bearing and the guide column; the pressing cylinder is fixedly arranged on the hot pressing mounting plate, the piston rod of the pressing cylinder passes downward through the hot pressing mounting plate and is connected to the module mounting block, the guide column is arranged on the top surface of the module mounting block and passes through the hot pressing mounting plate, the linear bearing is sleeved on the guide column and installed on the hot pressing mounting plate, the hot pressing module includes a connecting block, a heating block and the hot pressing head; the connecting block is arranged at the bottom of the module mounting block, the heating block is arranged at the bottom of the connecting block, the hot pressing head is arranged at the bottom of the heating block, and the heating block is connected to the heating device.

8. The automatic bag turning device according to claim 6, characterized in that: The downward pressure control component includes a top plate, a force pressure reducing valve, a vacuum solenoid valve and a vacuum generator; the top plate is arranged at the top of the pillar and is located above the hot pressing mounting plate, the vacuum solenoid valve is connected to the vacuum generator, the force pressure reducing valve and the vacuum generator are connected to the downward pressure cylinder, and the force pressure reducing valve controls the downward pressure of the hot pressing module through the downward pressure cylinder.

9. The automatic bag turning device according to claim 6, characterized in that: The pushing mechanism also includes a module mounting plate and a pushing linear guide rail; the module mounting plate is arranged below the hot pressing mounting plate of the hot pressing mechanism, the pushing linear module and the pushing linear guide rail are arranged below the module mounting plate, and the pushing member mounting plate is slidably arranged on the pushing linear guide rail and connected to the pushing linear module, so that the pushing linear module drives the pushing member mounting plate to reciprocate along the pushing linear guide rail.

10. The automatic bag turning device according to any one of claims 1 to 5, characterized in that: The pushing mechanism also includes a floating joint, one end of which is arranged at the front end of the pushing member mounting plate, and the other end of which is connected to the pushing member.

11. The automatic bag turning device according to any one of claims 1 to 5, characterized in that: The pushing mechanism also includes a limit sensing module, which includes a sensor and a sensor sheet. The sensor module is arranged at a pushing safety limit position of the moving trajectory of the pushing member, wherein the sensor is arranged below the module mounting plate, and the sensor sheet is arranged at a corresponding position of the pushing member mounting plate and senses the sensor passing through.

12. The automatic bag turning device according to any one of claims 1 to 5, characterized in that: The pushing member of the upper mold includes a push rod and a mounting block; the front end of the push rod is provided with the hot pressing head through groove, the upper part of the front end surface of the push rod is provided with a top plate protrusion, and the front end bottom surface of the push rod is provided with a pressure plate protrusion.

13. The automatic bag turning device according to claim 12, characterized in that: The bottom surface of the push rod is also provided with a guide groove protrusion, and the guide groove protrusion is embedded in the bottom end opening of the push rod through groove.

14. The automatic bag turning device according to claim 12, characterized in that: The push rod through groove and the pushing member are processed by slow wire cutting, and the single-side spacing between the two is 0.02mm. The top bar and the top bar through groove of the carrier plate are processed by slow wire cutting, and the single-side spacing between the two is 0.02mm.

15. The automatic bag turning device according to claim 12, characterized in that: The bottom surface of the pressing plate is also provided with a product protrusion giving way groove.

16. The automatic bag turning device according to any one of claims 1 to 5, characterized in that: The lower mold also includes a top strip guide column, which is arranged between the carrier plate and the top strip plate.

17. An operating method of an automatic bag turning device, characterized in that: The following steps are involved: Step S: Before use, install the pressing plate of the upper mold on the upper mold mounting plate of the hot pressing mechanism, and install the pusher of the upper mold on the pusher mounting plate of the pushing mechanism; install the lower mold on the carrier lifting assembly of the carrier mechanism through the carrier plate of the lower mold; position the product on the carrier plate of the lower mold, and start the automatic package turning device; Step B: The lifting cylinder of the platform lifting assembly drives the lower mold to push up, so that the upper mold and the lower mold are positioned and molded; Step C: The top bar lifting cylinder of the platform lifting assembly drives the top bar to push up, and the top bar passes through the carrier plate to push the flipping part of the product into the push rod slot and the hot pressing slot of the pressing plate; Step D: The pushing linear module of the pushing mechanism drives the pushing member to move so that its end is close to the top bar, and the pushing member is located above the top bar and supports the middle and upper part of the product's bag turning part; Step E: The top bar lifting cylinder of the carrier lifting assembly drives the top bar to descend and return to its position, and the pushing linear module of the pushing mechanism drives the pushing member to continue to move forward, so that the pushing member folds the flipping part of the product onto the fitting part of the product until the hot pressing head slot of the pushing member is located below the hot pressing head of the hot pressing assembly; Step F: The downward pressure cylinder of the hot pressing assembly drives the hot pressing head to press downward, and the bottom end of the hot pressing head passes through the hot pressing groove of the pressing plate and the hot pressing head groove of the pushing member to hot press the turned-over part of the product onto the fitting part of the product; Step G: The downward pressure cylinder of the hot pressing assembly drives the hot pressing head to rise and return to its original position, and the pushing linear module of the pushing mechanism drives the pushing member to retreat and return to its original position; Step H: The lifting cylinder of the platform lifting assembly drives the lower mold to descend and return to its original position, and the upper mold is separated from the lower mold; Step J: Position the other areas of the product to be processed on the carrier of the lower mold, repeat steps B to H until all unit products on the product are processed and remove the product.

18. The method for operating the automatic bag turning device according to claim 17, characterized in that: The platform mechanism is provided with a platform linear module and a platform linear guide rail, the upper mold mounting plate is located at an upper position within the travel range of the platform linear module, the platform lifting assembly is slidably arranged on the platform linear guide rail and connected to the platform linear module; the step B includes step A before, step H includes step I after, and step J repeats steps A to I; Step A: The carrier linear module of the carrier mechanism drives the carrier lifting assembly to the bottom of the hot pressing mechanism, so that the lower mold is located directly below the upper mold; Step I: The carrier linear module of the carrier mechanism drives the carrier lifting assembly to exit.

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