Automatic film splicing device for coating production

Abstract

The application relates to an automatic film splicing device for coating production and belongs to the technical field of film splicing devices. The device comprises a rack, an operation platform arranged on the rack, a cutter mechanism arranged above the operation platform, upper and lower adsorption tape mechanisms arranged above and below the operation platform table respectively, and a station conversion mechanism for driving the upper adsorption tape mechanism to move between a film splicing preparation station and a tape sticking station. After the old and new film materials are cut by the cutter mechanism, the upper adsorption tape mechanism is driven by the station conversion mechanism to move from the film splicing preparation station to the tape sticking station, and the upper and lower adsorption tape mechanisms respectively stick the upper and lower tapes to complete the automatic butt joint of the old and new film rolls. The application realizes automatic positioning, pressing, cutting and double-side tape sticking of the old and new film materials, improves the film splicing efficiency and quality, eliminates the safety hazards of manual knife holding operation and improves the operation safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of film splicing devices, in particular to an automatic film splicing device for coating production. BACKGROUND

[0002] At present, the coating machine is mainly used for the coating process production of the film material surface. A layer of glue, paint and the like with specific functions is coated on the film material in roll form, and after drying, it is wound up. In the core process of coating production, whether it is a soft film production line or a bonding production line, there are specific technical requirements for unwinding and film splicing. The butt splicing method is commonly used to complete the continuous supply of the roll material.

[0003] However, the existing technical solutions widely used at present generally have low automation level, especially when dealing with materials with large width, this limitation is particularly prominent. The common production mode is to rely on manual operation: on a dedicated butt splicing platform, the operator needs to overlap and align the new roll of film with the old film about to be used up, fix it with a pressing device, then manually cut it with a knife to ensure that the edges of the new and old materials are neat, then paste adhesive tape to complete the connection, and finally loosen the film pressing rod to restore the operation of the production line.

[0004] The above-mentioned traditional manual film splicing method has the following defects in actual application: the core problem is that the automation degree is seriously insufficient, and manual intervention is required for each film splicing step, which restricts the production efficiency. In addition, the film path design from the unwinding part to the manual film splicing platform is often complicated, increasing the complexity of preparation before operation. Manual alignment and cutting require workers to directly hold the knife, which has great safety hazards, and also brings uncertainty to the stability of the film splicing quality. SUMMARY

[0005] In order to improve the film splicing efficiency of coating production and eliminate the safety hazards of manual knife operation, the present application provides an automatic film splicing device for coating production.

[0006] The automatic film splicing device for coating production provided by the present application adopts the following technical solution:

[0007] The application discloses an automatic film splicing device for coating production, which comprises a rack, an operation platform arranged on the rack, a vacuum cavity arranged in the operation platform, a through hole arranged on the surface of the operation platform and communicated with the vacuum cavity, a cutter mechanism arranged above the operation platform and used for cutting new and old film materials overlapped on the operation platform, an upper adsorption tape mechanism and a lower adsorption tape mechanism arranged above and below the surface of the operation platform respectively and used for adsorbing and pasting tapes, and a station conversion mechanism connected with the cutter mechanism and the upper adsorption tape mechanism and used for driving the upper adsorption tape mechanism to move between a film splicing preparation station and a tape pasting station.

[0008] Optionally, the automatic film splicing device further comprises two tape unwinding mechanisms used for supplying tapes to the upper adsorption tape mechanism and the lower adsorption tape mechanism respectively.

[0009] Optionally, one side of the upper adsorption tape mechanism and the lower adsorption tape mechanism is respectively provided with a linear module, a chuck assembly is arranged on the sliding table of the linear module, and each chuck assembly is used for clamping and feeding the tape output by the corresponding tape unwinding mechanism to the upper adsorption tape mechanism or the lower adsorption tape mechanism; and a cutting assembly is further arranged on the rack to cut the tape output by the tape unwinding mechanism.

[0010] Optionally, the upper adsorption tape mechanism and the lower adsorption tape mechanism each comprise an adsorption lifting driving member and an adsorption pipe connected with the adsorption lifting driving member, the adsorption lifting driving member of the upper adsorption tape mechanism is arranged on the station conversion mechanism, and the opposite side of each adsorption pipe is an adsorption plane; an adsorption hole communicated with the lumen of the corresponding adsorption pipe is arranged on the adsorption plane; and the chuck assembly is used for clamping and feeding the tape at the output end of the corresponding tape unwinding mechanism to the adsorption plane of the corresponding adsorption pipe.

[0011] Optionally, a receiving table is arranged on the rack, the receiving table is arranged between the tape unwinding mechanism and the adsorption pipe to receive the tape output by the tape unwinding mechanism, one end of the receiving table away from the corresponding tape unwinding mechanism is within the stroke range of the corresponding chuck assembly, a pressing groove is arranged on the surface of the receiving table, a pressing wheel is rotatably connected to the receiving table, and the pressing wheel is arranged opposite to the pressing groove.

[0012] Optionally, the cutting assembly comprises a shearing cutter and a swing cylinder, the shearing cutter is swingably connected to the receiving table away from the corresponding adhesive tape unwinding mechanism; one end of the swing cylinder is hinged to the rack, and the other end is hinged to the shearing cutter to drive the shearing cutter to swing.

[0013] Optionally, the upper and lower adhesive tape suction mechanisms further comprise lifting frames and mounting frames, each of the lifting frames is connected to the output end of the corresponding suction lifting drive, one end of the mounting frame is connected to the suction pipe, and the other end is connected to a hanging plate; a plurality of sets of upper and lower guide rollers are arranged on the lifting frame, the spacing between each set of the upper and lower guide rollers is equal, the profiles of the upper and lower ends of the hanging plate are matched with the wheel grooves of the upper and lower guide rollers, and the hanging plate is arranged between the upper and lower guide rollers.

[0014] Optionally, the hanging plate is arranged obliquely relative to the suction plane of the corresponding suction pipe, the oblique upper end of the hanging plate is arranged away from the receiving table, the side of the rack away from the receiving table is provided with a mounting through hole for taking out the suction pipe and the hanging plate, each of the upper and lower guide rollers is arranged along the oblique direction of the hanging plate, and the rack is provided with a limiting piece for limiting the oblique lower end of the hanging plate.

[0015] Optionally, the platform movable frame is slidably connected to the rack, the operation platform is slidably connected to the platform movable frame, the platform lifting drive is arranged on the rack and used to drive the platform movable frame to lift, the platform transverse drive is arranged on the platform movable frame and used to drive the operation platform to move along the length direction of the film material, and the vacuum mechanism is arranged.

[0016] Optionally, the temporary film pressing mechanism is arranged on the rack and used to fix the head of the new film in the film receiving preparation stage, and the auxiliary film pressing mechanism is arranged on the rack and used to press the new and old films on the right suction surface of the operation platform in the automatic film receiving stage.

[0017] In summary, the present application has at least one of the following beneficial technical effects:

[0018] 1. Through the cooperation of the operation platform, the cutter mechanism, the upper and lower adhesive tape suction mechanisms and the station conversion mechanism, the automatic positioning, pressing, cutting and double-sided adhesive tape pasting of the new and old film materials are realized, the traditional manual film receiving mode is replaced, the safety hidden danger of manual knife operation is eliminated, the operation safety is improved, the production efficiency of the film receiving operation is significantly improved, and the quality of each seam is guaranteed to be reliable and uniform through the consistency of mechanical action, so that the film receiving quality is improved.

[0019] 2. The support and transition path provided by the receiving table optimizes the stability of the adhesive tape during the conveying process. Through the cooperation of the overpressure wheel and the pressure groove, the soft adhesive tape can be pre-pressed and bent, making its cross-section slightly curved. This shape significantly increases the lateral rigidity of the adhesive tape in the suspended section, allowing it to extend a certain distance like a tape measure while maintaining a predetermined posture, effectively resisting sagging and drifting caused by its own gravity. This facilitates accurate clamping by the clamp head assembly, improving the success rate and reliability of the adhesive tape loading operation.

[0020] 3. The hanging plate, upper guide wheel, and lower guide wheel form a detachable suspension guide system. When the full-automatic process fails or has specific process requirements, the operator can conveniently remove the two sets of suction tubes and corresponding hanging plates, quickly switching the device's working mode from "full-automatic film receiving" to "semi-automatic film receiving." In "semi-automatic film receiving" mode, the most dangerous film cutting action is still automatically completed by the cutter mechanism, and the worker only needs to perform the relatively safe adhesive tape pasting operation. This retains a certain degree of automation and has certain advantages in film receiving efficiency compared to traditional full-manual film receiving. It also retains the flexibility of manual intervention, ensuring that the key process of film receiving in coating production does not come to a complete standstill in the event of an unexpected situation, effectively avoiding production interruptions of the entire coating production line due to film receiving failure, maintaining production continuity and stability. In both "full-automatic film receiving" and "semi-automatic film receiving" modes, the significant safety risk of manual knife cutting by the operator is avoided. At the same time, the maintenance process of the components is simplified, and the two sets of suction tubes can be conveniently removed from the working position for cleaning or replacement.

[0021] 4. By tilting the hanging plate and sequentially tilting the upper guide wheel and lower guide wheel, the hanging plate can automatically and slowly slide to and rest against the limiting piece during installation using the gravity component, achieving precise positioning of its working state. This eliminates the need for additional limiting structures on the inclined upper end of the hanging plate, simplifying the installation and positioning structure. In the working state, as long as there is no additional external force (or its component) along the length direction of the suction tube, the suction tube and hanging plate will always maintain the working position against the limiting piece under the action of gravity, without any unintended lengthwise deviation, ensuring position accuracy during the adhesive tape pasting operation and the overall mechanism's operational reliability. When disassembled, as there is no limiting structure at the opening of the inclined upper end of the rack, the operator can directly pull out the assembly along the inclined direction without additional disassembly and positioning operations. The same applies to installation, where the hanging plate can automatically slide to the limiting piece by relying on gravity after being placed. This design significantly improves the operation efficiency when switching from "full-automatic" mode to "semi-automatic" mode or performing maintenance, and makes the structure more compact and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of an automatic film splicing device for coating production according to an embodiment of the present application.

[0023] Figure 2 is a sectional view showing the positional relationship of the various mechanisms according to an embodiment of the present application.

[0024] Figure 3 is a schematic diagram of the structure of the mechanisms for guiding and positioning new and old film material according to an embodiment of the present application.

[0025] Figure 4 is a schematic diagram showing the positional relationship of the upper and lower adhesive tape suction mechanisms according to an embodiment of the present application.

[0026] Figure 5 is a schematic diagram of the structure of the receiving table and cutting assembly according to an embodiment of the present application.

[0027] Figure 6 is a schematic diagram of the structure of the upper adhesive tape suction mechanism according to an embodiment of the present application.

[0028] Figure 7 is a schematic diagram of the structure of the hanging plate, upper guide wheel and lower guide wheel according to an embodiment of the present application.

[0029] Figure 8 is a schematic diagram of the structure of the mounting through hole according to an embodiment of the present application.

[0030] Figure 9 is a sectional view of the operating platform according to an embodiment of the present application.

[0031] Figure 10 is a schematic diagram of the structure of the cutter mechanism according to an embodiment of the present application.

[0032] Explanation of reference signs: 1, rack; 11, upper film guide roller; 12, roller seat; 121, transition roller; 122, roller lifting driving part; 13, adhesive tape unwinding mechanism; 14, linear module; 141, chuck assembly; 15, cutting-off assembly; 151, shearing knife; 152, swing cylinder; 16, receiving table; 161, pressing groove; 162, pressing wheel; 17, mounting through hole; 18, limiting part; 19, vacuum mechanism; 2, operation platform; 21, platform movable frame; 22, platform lifting driving part; 23, platform transverse moving driving part; 24, vacuum cavity; 25, cutting groove; 251, left adsorption surface; 252, right adsorption surface; 3, cutting knife mechanism; 4, upper adsorption adhesive tape mechanism; 41, adsorption lifting driving part; 42, adsorption pipe; 421, adsorption plane; 43, lifting frame; 431, upper guide wheel; 432, lower guide wheel; 44, mounting frame; 441, hanging plate; 5, lower adsorption adhesive tape mechanism; 6, station conversion mechanism; 61, station conversion plate; 62, conversion cylinder; 7, old film; 8, new film; 9, temporary film pressing mechanism; 91, auxiliary film pressing mechanism. DETAILED DESCRIPTION

[0033] The application will be described in further detail below. Figures 1-10 The application will be described in further detail below.

[0034] Embodiment:

[0035] The embodiment of the application discloses an automatic film connecting device for coating production. Referring to Figure 1 The embodiment of the application discloses an automatic film connecting device for coating production. Referring to

[0036] Referring to Figures 1-3 The rack 1 is a two-side plate frame structure, two upper film guide rollers 11 with the same mounting height are rotationally connected to the rack 1, and the operation platform 2, the cutting knife mechanism 3, the upper adsorption adhesive tape mechanism 4, the lower adsorption adhesive tape mechanism 5 and the station conversion mechanism 6 are located between the upper film guide rollers 11, the old film 7 is located at the lower end of the upper film guide roller 11, and the old film 7 can be tensioned by the upper film guide roller 11 and kept in a horizontal state at a predetermined film connecting height during film connecting.

[0037] With reference to Figure 2 and Figure 3 In order to facilitate the passage of the new film 8 from below the old film 7 in the film splicing preparation stage, the operation platform 2 is arranged to be liftable relative to the rack 1, and when the operation platform 2 is lowered, the spacing between the tabletop of the operation platform 2 and the old film 7 is increased, thereby facilitating the arrangement of the new film 8 between the old film 7 and the tabletop of the operation platform 2. After the new film 8 is arranged as described above, the operation platform 2 is raised to the working height to support the new and old film materials. In order to avoid the sagging of the new film 8 during the film splicing operation and to ensure that the new film 8 is in a horizontal state in the film splicing operation area, a roller seat 12 is slidingly connected to the end of the rack 1 away from the operation platform 2 in the vertical direction, a transition roller 121 is rotatably connected to the roller seat 12, and a roller lifting driving member 122 is installed on the rack 1 to drive the roller seat 12 to lift. In this embodiment, the roller lifting driving member 122 is a pneumatic cylinder. In this way, when the transition roller 121 is lowered, the gap between the transition roller 121 and the adjacent upper film guide roller 11 in the vertical direction is increased, facilitating the passage of the new film 8; and then, the transition roller 121 is raised to the working height synchronously with the operation platform 2, ensuring that the new film 8 is maintained in a horizontal state in the film splicing operation area.

[0038] With reference to Figure 1 , Figure 2 , Figure 4 and Figure 5 Two adhesive tape unwinding mechanisms 13 are arranged on one side outer wall of the rack 1, and are respectively used to supply adhesive tape to the upper adhesive tape suction mechanism 4 and the lower adhesive tape suction mechanism 5. One side of the upper adhesive tape suction mechanism 4 and the lower adhesive tape suction mechanism 5 is respectively provided with a linear module 14, both ends of the linear module 14 are respectively fixed to the two side walls of the rack 1, a chuck assembly 141 is arranged on the sliding table of the linear module 14, and each chuck assembly 141 is used to clamp and feed the adhesive tape output by the corresponding adhesive tape unwinding mechanism 13 to the upper adhesive tape suction mechanism 4 or the lower adhesive tape suction mechanism 5; the rack 1 is also provided with a cutting assembly 15 to cut the adhesive tape output by the adhesive tape unwinding mechanism 13. In this embodiment, the chuck assembly 141 is a pneumatic clamp chuck. In the film splicing preparation stage, the upper and lower adhesive tapes can be independently and synchronously supplied, the chuck assembly 141 and the linear module 14 can clamp and feed the adhesive tape output by the corresponding adhesive tape unwinding mechanism 13 to the predetermined position of the upper adhesive tape suction mechanism 4 or the lower adhesive tape suction mechanism 5, and the cutting assembly 15 can efficiently cut the adhesive tape, thereby ensuring the uniformity of the length of the adhesive tape used each time, and realizing the automatic feeding and fixed-length cutting of the adhesive tape.

[0039] With reference to Figure 4 and Figure 5The upper and lower adsorption tape mechanisms 4 and 5 each include an adsorption lifting driving member 41 and an adsorption tube 42 connected with the adsorption lifting driving member 41, and the adsorption lifting driving member 41 of the upper adsorption tape mechanism 4 is arranged on the station conversion mechanism 6. The opposite sides of the two adsorption tubes 42 are respectively adsorption planes 421, and the adsorption planes 421 are provided with adsorption holes in communication with the cavities of the corresponding adsorption tubes 42. The chuck assembly 141 is used to clamp and send the tape at the output end of the corresponding tape unwinding mechanism 13 to the adsorption plane 421 of the corresponding adsorption tube 42. In the embodiment, the adsorption tube 42 is a square tube structure. Through the adsorption tube 42 and the adsorption plane 421 with the adsorption holes, reliable grabbing and compact pasting of the tape can be realized. The vacuum adsorption force enables the tape to be evenly tensioned and fixed on the adsorption plane 421, and the adhesive surface of the tape faces outward during adsorption and is in a state of waiting for pasting. The adsorption lifting driving member 41 provides controllable and sufficient compacting force for the tape pasting, ensures that the tape and the film surface can be firmly combined, and thus guarantees the strength of the joint. In the embodiment, the adsorption lifting driving member 41 is a pneumatic cylinder.

[0040] With reference to Figure 2 and Figure 4 , the station conversion mechanism 6 includes a station conversion plate 61 and a conversion cylinder 62. The station conversion plate 61 is slidingly connected to the rack 1 along the length direction of the film material, the conversion cylinder 62 is installed on the rack 1 and connected with the station conversion plate 61, and the adsorption lifting driving member 41 of the upper adsorption tape mechanism 4 is installed on the station conversion plate 61. Through the conversion cylinder 62, the station conversion plate 61 can be driven to slide along the length direction of the new and old film materials, so as to realize the station conversion of the upper adsorption tape mechanism 4 between the film joint preparation station and the tape pasting station.

[0041] With reference to Figure 1 and Figure 5The inner side of the rack 1 is fixed with a receiving table 16, and the receiving table 16 is arranged between the adhesive tape unwinding mechanism 13 and the adsorption pipe 42 to receive the adhesive tape output by the adhesive tape unwinding mechanism 13. The end of the receiving table 16 away from the corresponding adhesive tape unwinding mechanism 13 is within the stroke range of the corresponding chuck assembly 141. A pressing groove 161 is formed in the table top of the receiving table 16 along the length direction of the receiving table 16. The pressing groove 161 is an arc-shaped groove. A pressing wheel 162 is rotatably connected to the receiving table 16 and is arranged opposite to the pressing groove 161. The wheel surface profile of the pressing wheel 162 is matched with the shape of the pressing groove 161. The receiving table 16 provides support and a transition path for the adhesive tape, thereby optimizing the stability of the adhesive tape during the conveying process. Through the cooperation of the pressing wheel 162 and the pressing groove 161, the soft adhesive tape can be pre-pressed and bent, so that the cross section of the adhesive tape presents a slightly curved shape. This shape significantly increases the lateral rigidity of the adhesive tape in the suspended section, so that the adhesive tape can extend a distance in a predetermined posture like a tape measure, effectively resisting sagging and drifting caused by its own gravity, thereby facilitating accurate clamping by the chuck assembly 141 and improving the success rate and reliability of the adhesive tape feeding operation.

[0042] With reference to Figure 1 and Figure 5 The cutting-off assembly 15 includes a shearing knife 151 and a swing cylinder 152. The shearing knife 151 is swingably connected to the end of the receiving table 16 away from the corresponding adhesive tape unwinding mechanism 13. One end of the swing cylinder 152 is hinged to the rack 1, and the other end is hinged to the shearing knife 151 to drive the shearing knife 151 to swing. The swing cylinder 152 can drive the shearing knife 151 to swing, thereby quickly completing the cutting of the adhesive tape and avoiding phenomena such as filamentation, deformation or adhesion of the adhesive tape, thereby ensuring the regularity of the adhesive tape segment used for each film receiving.

[0043] With reference to Figure 4 and Figure 6 The upper and lower adhesive tape suction mechanisms 4 and 5 further include lifting frames 43 and mounting frames 44. Each lifting frame 43 is connected to the output end of the corresponding adsorption lifting driving member 41. One end of the mounting frame 44 is connected to the adsorption pipe 42, and the other end is connected with a hanging plate 441. A plurality of upper and lower guide wheels 431 and 432 are arranged on the lifting frame 43. The distance between each group of corresponding upper and lower guide wheels 431 and 432 is equal. The profiles of the upper and lower ends of the hanging plate 441 are matched with the wheel grooves of the upper and lower guide wheels 431 and 432, respectively. The hanging plate 441 is arranged between the upper and lower guide wheels 431 and 432.

[0044] The setting of the hanging plate 441 and the upper guide wheel 431 and the lower guide wheel 432 forms a detachable suspension guide system. When the full-automatic process fails or has specific process requirements, the operator can conveniently extract the two groups of adsorption pipes 42 and the corresponding hanging plate 441, and quickly switch the working mode of the device from "full-automatic film receiving" to "semi-automatic film receiving". In the "semi-automatic film receiving" mode, the most dangerous film cutting action is still completed automatically by the cutter mechanism 3, and the worker only needs to perform the relatively safe tape sticking operation, which retains a certain degree of automatic operation, and compared with the traditional full-manual film receiving, the film receiving efficiency still has certain advantages. It also retains the flexibility of manual intervention, ensures that the film receiving, a key process in coating production, will not be completely stalled in the event of an unexpected situation, thereby effectively avoiding the production interruption of the entire coating production line caused by film receiving failure, maintaining the continuity and stability of production. In the working modes of "full-automatic film receiving" and "semi-automatic film receiving", the major safety risk of manual knife cutting by the operator is avoided. At the same time, the maintenance process of the components is simplified, and the two groups of adsorption pipes 42 can be conveniently extracted from the working position for cleaning or replacement.

[0045] With reference to Figures 5-8 The hanging plate 441 is slightly inclined relative to the adsorption plane 421 of the corresponding adsorption pipe 42, and the inclined upper end of the hanging plate 441 is arranged away from the receiving table 16. The side of the rack 1 away from the receiving table 16 is provided with a mounting hole 17 for taking out the adsorption pipe 42 and the hanging plate 441. Each upper guide wheel 431 and lower guide wheel 432 is arranged in sequence along the inclined direction of the hanging plate 441. The rack 1 is provided with a limiting piece 18 for limiting the inclined lower end of the hanging plate 441. In this embodiment, the limiting piece 18 is a limiting block or a limiting plate.

[0046] By tilting the hanging plate 441 and sequentially tilting the upper guide wheel 431 and lower guide wheel 432, the hanging plate 441 can automatically and slowly slide towards and stably abut against the limiting member 18 during installation using the component of gravity. This achieves precise positioning in its working state, eliminating the need for an additional limiting structure on the upper tilted side of the hanging plate 441, thus simplifying the installation and positioning structure. In the working state, as long as no additional external force (or its component) is applied along the length of the adsorption tube 42, the adsorption tube 42 and the hanging plate 441 will always maintain their working position against the limiting member 18 under the action of gravity, without any unexpected deviation in the length direction. This ensures the positional accuracy during the adhesive application action and the overall operational reliability of the mechanism. During disassembly, due to the unlimited structure at the opening of the frame 1 on the inclined upper side, the operator can directly pull out the component along the inclined direction without the need for additional disassembly and relocation operations. The same applies during installation. After the hanging plate 441 is placed in, it can automatically slide to the limit member 18 by its own weight. This design significantly improves the operational efficiency when switching from "fully automatic" mode to "semi-automatic" mode or when performing maintenance, and makes the structure more compact and reliable.

[0047] Reference Figure 1 , Figure 3 , Figure 9 and Figure 10 The automatic film-attaching device also includes a platform movable frame 21, a platform lifting drive 22, a platform lateral movement drive 23, and a vacuum mechanism 19. The platform movable frame 21 is slidably connected to the frame 1, and the operating platform 2 is slidably connected to the platform movable frame 21. The platform lifting drive 22 is located on the frame 1 and is used to drive the platform movable frame 21 to lift. The platform lateral movement drive 23 is located on the platform movable frame 21 and is used to drive the operating platform 2 to move along the length of the film material. The operating platform 2 is provided with a vacuum chamber 24, and a through hole communicating with the vacuum chamber 24 is opened on the table surface of the operating platform 2. The vacuum mechanism 19 is connected to each adsorption tube 42 and the vacuum chamber 24 respectively. A cutting groove 25 corresponding to the cutting mechanism 3 is also opened on the table surface of the operating platform 2, and the cutting groove 25 divides the table surface of the operating platform 2 into a left adsorption surface 251 and a right adsorption surface 252. In this embodiment, the cutter head of the cutting mechanism 3 is driven by a rodless cylinder, and the rodless cylinder is set along the width direction of the film material, which can realize the cutting of the film material. The lifting and lowering action of the cutter head of the cutting mechanism 3 is controlled by a conventional lifting cylinder, which will not be described in detail here.

[0048] In the double-layer film material cutting process, the vacuum adsorption force can firmly adsorb and fix the lower layer film material through the through hole on the operation platform 2 table, so as to ensure that the incision edge of the lower layer film is flush; in the subsequent rubberizing process, the lifting and horizontal movement function of the operation platform 2 enables it to flexibly adjust the position, and when the operation platform 2 sinks with the film material adsorbed by the vacuum adsorption, it can make room for the upward compaction action of the lower adsorbed rubber belt mechanism 5, and at the same time, the waste material head of the new film 8 is taken away by the vacuum adsorption force.

[0049] Referring to Figure 2 , Figure 3 and Figure 9 , in order to control the motion trajectory of different film materials in the film splicing process, the automatic film splicing device further comprises a temporary film pressing mechanism 9 and an auxiliary film pressing mechanism 91 arranged on the rack 1, wherein the temporary film pressing mechanism 9 is used to fix the material head of the new film 8 in the film splicing preparation stage; the auxiliary film pressing mechanism 91 is used to press the new and old film materials on the right adsorption surface 252 of the operation platform 2 in the automatic film splicing stage. In the embodiment, the temporary film pressing mechanism 9 and the auxiliary film pressing mechanism 91 are conventional pneumatic pressing plate structures. The temporary film pressing mechanism 9 fixes the material head of the new film 8 in the film splicing preparation stage, and prevents the waste material head of the new film 8 from moving out of control when the right side lower layer new film 8 waste material head is displaced by the subsequent sinking of the operation platform 2. After the film splicing is completed, the temporary film pressing mechanism 9 is loosened, and the waste material head of the new film 8 can be removed. The auxiliary film pressing mechanism 91 is specially used to press the new and old film materials on the right adsorption surface 252 of the operation platform 2 in the automatic film splicing stage, and its key role is to pull away the old film 7 on the left adsorption surface 251 after cutting the double-layer film material, and the old film 7 on the right adsorption surface 252 is pressed by the auxiliary film pressing mechanism 91, so as to provide precise positioning for the upper adsorbed rubber belt mechanism 4 to stick the upper side rubber belt.

[0050] The implementation principle of the automatic film splicing device for coating production in the embodiment of the application is that: when the automatic film splicing device is running, its working process is divided into a preposed film splicing preparation stage and a subsequent automatic film splicing stage.

[0051] In the film splicing preparation stage, the old film 7 is attached to the lower end of the roller surface of the upper film guide roller 11, and the operator first passes the new film 8 from below the old film 7, and the material head of the new film 8 is fixed by the temporary film pressing mechanism 9. The continuous supply of the rubber belt can be realized through the rubber belt unwinding mechanism 13, the two rubber belts can be respectively clamped and sent to the upper adsorbed rubber belt mechanism 4 and the lower adsorbed rubber belt mechanism 5 through the linear module 14 and the clamp head assembly 141, and the rubber belt can be cut off through the cutting assembly 15. At this time, the vacuum adsorption of the upper adsorbed rubber belt mechanism 4 and the lower adsorbed rubber belt mechanism 5 is opened, and the adhesive surface of the rubber belt faces outward.

[0052] In the automatic film connecting stage, the transition roller 121 on the left side of the frame 1 and the operation platform 2 on the right side rise to the working height, the cutter mechanism 3 and the right end auxiliary film pressing mechanism 91 fall, and the new and old double-layer films are pressed on the table top of the operation platform 2. The vacuum adsorption of the operation platform 2 is opened, and the cutter mechanism 3 performs the cutting operation, so that the new and old double-layer films are simultaneously divided into two parts.

[0053] After the new and old double-layer films are cut off, the old roll is wound, the upper layer of the old film 7 on the left adsorption surface 251 is pulled away, and the lower layer of the new film 8 on the left adsorption surface 251 is adsorbed by the vacuum adsorption. At this time, the work position conversion mechanism 6 works, the upper adsorption tape mechanism 4 is operated to the tape sticking position, and the corresponding adsorption lifting drive 41 is pushed down. After compaction, the vacuum adsorption of the upper adsorption tape mechanism 4 is closed and remains in place, the auxiliary film pressing mechanism is lifted, and the upper surface tape butt joint of the left new film 8 and the right upper layer old film 7 is completed.

[0054] Subsequently, the operation platform 2 keeps its vacuum adsorption open and sinks obliquely to the right side of the frame 1, and the right lower layer new film 8 is taken away, and the lower adsorption tape mechanism 5 is left out of the tape sticking position. The lower adsorption tape mechanism 5 is lifted by the corresponding adsorption lifting drive 41, and after compaction with the upper adsorption tape mechanism 4 which remains in place, the vacuum mechanism 19 is closed, and finally the adsorption lifting drive 41 of the lower adsorption tape mechanism 5 falls, so that the lower surface tape butt joint of the left new film 8 and the right old film 7 is completed.

[0055] The automatic film connecting device realizes the automatic positioning, pressing, cutting and double-sided tape pasting of the new and old film materials through the cooperation of the operation platform 2, the cutter mechanism 3, the upper adsorption tape mechanism 4, the lower adsorption tape mechanism 5 and the work position conversion mechanism 6. The traditional manual film connecting method is replaced, the safety hidden danger of manual knife operation is eliminated, and the operation safety is improved. The automatic process not only significantly improves the production efficiency of the film connecting operation, but also ensures the quality and uniformity of each joint through the consistency of mechanical action, so as to improve the film connecting quality.

[0056] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An automatic film splicing device for coating production, characterized in that, include: Rack (1); An operating platform (2) is provided on the frame (1). The operating platform (2) is provided with a vacuum chamber (24). The platform surface of the operating platform (2) is provided with a through hole communicating with the vacuum chamber (24). A cutting mechanism (3) is located above the operating platform (2) and is used to cut new and old film materials overlapping on the operating platform (2). The upper tape adsorption mechanism (4) and the lower tape adsorption mechanism (5) are respectively set above and below the table surface of the operating platform (2) for adsorbing and applying tape. And a station conversion mechanism (6), which is connected to the cutting mechanism (3) and the upper adsorption tape mechanism (4) to drive the upper adsorption tape mechanism (4) to move between the film preparation station and the tape application station; The operating platform (2) has a cutting groove (25) corresponding to the cutting mechanism (3) on its table surface. After the cutting mechanism (3) cuts the new and old film materials, the station conversion mechanism (6) drives the upper adsorption tape mechanism (4) to move from the film preparation station to the tape application station. The upper adsorption tape mechanism (4) and the lower adsorption tape mechanism (5) apply the tape to the upper and lower surfaces respectively to complete the automatic docking of the new film (8) and the old film (7). It also includes two tape unwinding mechanisms (13), which are used to supply tape to the upper adsorption tape mechanism (4) and the lower adsorption tape mechanism (5), respectively; a linear module (14) is provided on one side of the upper adsorption tape mechanism (4) and the lower adsorption tape mechanism (5), and a clamp assembly (141) is provided on the slide of the linear module (14). Each clamp assembly (141) is used to clamp the tape output from the corresponding tape unwinding mechanism (13) onto the upper adsorption tape mechanism (4) / lower adsorption tape mechanism (5); a cutting assembly (15) is also provided on the frame (1) to cut the tape output from the tape unwinding mechanism (13); Both the upper adsorption tape mechanism (4) and the lower adsorption tape mechanism (5) include an adsorption lifting drive (41) and an adsorption tube (42) connected to the adsorption lifting drive (41). The adsorption lifting drive (41) of the upper adsorption tape mechanism (4) is located on the workstation conversion mechanism (6). The two adsorption tubes (42) have their respective adsorption planes (421) on opposite sides. The adsorption planes (421) are provided with adsorption holes that communicate with the cavity of the corresponding adsorption tubes (42). The clamp assembly (141) is used to clamp the tape at the output end of the corresponding tape unwinding mechanism (13) onto the adsorption plane (421) of the corresponding adsorption tube (42).

2. The automatic film splicing device for coating production according to claim 1, characterized in that: The frame (1) is provided with a receiving platform (16), which is located between the tape unwinding mechanism (13) and the suction tube (42) to receive the tape output by the tape unwinding mechanism (13). The end of the receiving platform (16) away from the corresponding tape unwinding mechanism (13) is within the stroke range of the corresponding chuck assembly (141). The receiving platform (16) is provided with a pressure groove (161), and a pressure roller (162) is rotatably connected to the receiving platform (16). The pressure roller (162) is positioned directly opposite the pressure groove (161).

3. The automatic film splicing device for coating production according to claim 2, characterized in that: The cutting assembly (15) includes a shearing blade (151) and a swing cylinder (152). The shearing blade (151) is swingably connected to one end of the receiving platform (16) away from the corresponding tape unwinding mechanism (13). One end of the swing cylinder (152) is hinged to the frame (1) and the other end is hinged to the shearing blade (151) to drive the shearing blade (151) to swing.

4. The automatic film splicing device for coating production according to claim 2, characterized in that: The upper adsorption tape mechanism (4) and the lower adsorption tape mechanism (5) further include a lifting frame (43) and a mounting frame (44). Each lifting frame (43) is connected to the output end of the corresponding adsorption lifting drive component (41). One end of the mounting frame (44) is connected to the adsorption tube (42), and the other end is connected to a hanging plate (441). The lifting frame (43) is provided with multiple sets of upper guide wheels (431) and lower guide wheels (432). The spacing between each set of upper guide wheels (431) and lower guide wheels (432) is equal. The contours of the upper and lower ends of the hanging plate (441) are adapted to the wheel grooves of the upper guide wheels (431) and lower guide wheels (432), respectively. The hanging plate (441) passes between the upper guide wheels (431) and the lower guide wheels (432).

5. An automatic film splicing device for coating production according to claim 4, characterized in that: The hanging plate (441) is inclined relative to the adsorption plane (421) of the corresponding adsorption tube (42), and the inclined upper end of the hanging plate (441) is away from the receiving platform (16). The side of the frame (1) away from the receiving platform (16) is provided with a mounting through hole (17) for taking out the adsorption tube (42) and the hanging plate (441). Each of the upper guide wheels (431) and lower guide wheels (432) is arranged in sequence along the inclined direction of the hanging plate (441). The frame (1) is provided with a limiting member (18) for limiting the inclined lower end of the hanging plate (441).

6. An automatic film splicing device for coating production according to claim 1, characterized in that, Also includes: The platform movable frame (21) is slidably connected to the frame (1), and the operating platform (2) is slidably connected to the platform movable frame (21); A platform lifting drive (22) is provided on the frame (1) and is used to drive the platform movable frame (21) to lift. A platform lateral movement drive (23) is provided on the platform movable frame (21) and is used to drive the operating platform (2) to move along the length direction of the film material; And a vacuum mechanism (19); The vacuum mechanism (19) is connected to each adsorption tube (42) and the vacuum chamber (24) respectively; the cutting groove (25) divides the table surface of the operating platform (2) into a left adsorption surface (251) and a right adsorption surface (252).

7. An automatic film splicing device for coating production according to claim 6, characterized in that, Also includes: A temporary film pressing mechanism (9) is provided on the frame (1) and is used to fix the material head of the new film (8) during the film preparation stage; And an auxiliary film pressing mechanism (91), which is provided on the frame (1), is used to press the new and old film materials onto the right adsorption surface (252) of the operating platform (2) during the automatic film splicing stage.

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