Film material carrying device for product film covering

Abstract

The invention belongs to the technical field of material conveying, and particularly relates to a film material carrying device for product film covering, the carrying device comprises a carrying cross arm, a plurality of suction cup seats are detachably assembled on the two sides of the carrying cross arm, and vacuum suction cups are detachably assembled at the bottoms of the suction cup seats; the upper end of the outer side of the suction cup base is in threaded connection with a gas circuit connector, a piston cavity is formed in the suction cup base, a rubber piston is slidably connected into the piston cavity, the interior of the suction cup base is divided into an adsorption cavity and a pressure adjusting cavity through the rubber piston, and an elastic element is assembled between the suction cup base and the rubber piston. The maximum value of the vacuum degree in the adsorption cavity can be adjusted through cooperation of the vacuum degree adjusting part and the rubber piston, precise elements such as an electromagnetic valve are not needed, the structural complexity, the purchase cost and the maintenance cost are reduced, meanwhile, the deformation amount of a membrane material can be monitored, and the detection accuracy is improved. And the phenomenon of plastic deformation or rupture of the membrane material caused by overlarge vacuum degree is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of material conveying, and in particular relates to a film material conveying device for product lamination. Background Art

[0002] With the continuous development of industrial automation technology, product laminating technology has been widely used in the manufacturing industry. The laminating process can not only improve the appearance quality of the product, but also enhance the durability and protective performance of the product. In the laminating process, the handling of the film material is a crucial link, which directly affects the laminating efficiency and the surface quality of the product. However, the existing film material handling device has some problems in practical applications, which limit its application scope and effect.

[0003] 1. Structural complexity. Most existing film material handling devices rely on control systems containing solenoid valves and pneumatic components to adjust the vacuum level inside the vacuum cup. Although this structural design can achieve precise control of the vacuum level, it contains multiple precision components, resulting in a relatively complex structure of the entire device. This complexity not only increases production costs, but also increases acquisition and maintenance costs. For many small and medium-sized enterprises, high costs are an important constraint;

[0004] 2. The problem of membrane damage. Different membrane materials have different physical properties, and their maximum elastic deformation is also different. When the vacuum degree of the vacuum cup is large, if the vacuum degree is not accurately controlled, the membrane may be plastically deformed or even ruptured due to excessive stretching. This irreversible damage will not only affect the normal use of the membrane material, but also reduce the coating quality of the product. The existing handling device lacks the function of real-time monitoring of the deformation of the membrane material, and cannot adjust the vacuum degree in time to avoid membrane damage.

[0005] Based on the above problems, this application document proposes a film material conveying device for product lamination to improve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a film material handling device for product coating, which can adjust the maximum vacuum degree inside the adsorption chamber through the cooperation of the vacuum adjustment part and the rubber piston, without the need for precision components such as solenoid valves, thereby reducing the structural complexity, purchase cost and maintenance cost. At the same time, it can also monitor the deformation of the film material to avoid plastic deformation or rupture of the film material due to excessive vacuum.

[0007] The technical solution adopted by the present invention is as follows:

[0008] A film material handling device for product lamination, comprising a handling cross arm, a plurality of suction cup seats are detachably mounted on both sides of the handling cross arm, a vacuum suction cup is detachably mounted on the bottom of the suction cup seat, an air path joint is threadedly connected to the upper end of the outer side of the suction cup seat, a piston cavity is provided inside the suction cup seat, a rubber piston is slidably connected to the inside of the piston cavity, an adsorption cavity and a pressure regulating cavity are separated inside the suction cup seat by the rubber piston, an elastic element is mounted between the suction cup seat and the rubber piston, and further comprising:

[0009] A vacuum degree adjustment part, which is mounted on the suction cup seat and can adjust the stroke of the rubber piston inside the piston cavity;

[0010] A deformation monitoring part, which is mounted at the lower end of the suction cup seat and can monitor the deformation of the membrane material;

[0011] A monitoring quantity adjustment part, the monitoring quantity adjustment part is assembled at the lower end of the suction cup seat, and the monitoring quantity adjustment part is connected to the deformation monitoring part;

[0012] Wherein, in the initial state, the elastic element is in a compressed state. When the vacuum suction cup and the membrane material are attached to each other, the greater the stroke of the rubber piston, the greater the vacuum degree inside the adsorption chamber.

[0013] In a preferred embodiment, the vacuum degree adjustment part includes a driving motor, a threaded shaft, a guide plate and an internally threaded limit rod, the driving motor is fixed to the upper end of the suction cup seat, the threaded shaft is fixed to the output end of the driving motor, and the suction cup seat and the driving motor are rotatably connected through a sealed bearing, the guide plate is fixed to the upper end of the suction cup seat and is located inside the pressure regulating chamber, the internally threaded limit rod is slidably connected to the inside of the guide plate, and the threaded shaft and the guide plate are threadedly connected.

[0014] In a preferred embodiment, a rotation-stopping surface is provided on the outer side of the internally threaded limiting rod, a chamfered surface is provided on the inner side of the guide plate, and the rotation-stopping surface and the chamfered surface are matched with each other.

[0015] In a preferred embodiment, the deformation monitoring part includes a sleeve, a first conductive column, a second conductive column, a trigger rod, a conductive boss, a first circuit connector and a second circuit connector. The sleeve is slidably connected to the inside of the suction cup seat, and the sleeve is connected to the monitoring amount adjustment part. The first conductive column and the second conductive column are both fixed to the upper end inside the sleeve. The trigger rod is slidably connected to the inside of the sleeve, and the conductive boss is fixed to the upper end of the trigger rod. The first circuit connector and the second circuit connector are both arranged in the side wall of the suction cup seat, and the first conductive column and the first circuit connector and the second conductive column and the second circuit connector are electrically connected through a wire, wherein the first conductive column, the second conductive column, the conductive boss, the first circuit connector and the second circuit connector constitute an early warning circuit. When the conductive boss and the first conductive column and the conductive boss and the second conductive column are all in contact with each other, the early warning circuit is in a path state. When the conductive boss and the first conductive column and the conductive boss and the second conductive column are far away from each other, the early warning circuit is in a circuit-breaking state.

[0016] In a preferred embodiment, in an initial state, the warning circuit is in a conducting state, and the lower end of the second conductive column and the lower end of the vacuum suction cup are located in the same horizontal plane.

[0017] In a preferred embodiment, a rotation-stopping rod is fixed inside the suction cup seat and inside the adsorption chamber, and a rotation-stopping groove is provided on the outside of the sleeve, and the rotation-stopping rod and the rotation-stopping groove are matched with each other.

[0018] In a preferred embodiment, the first conductive column, the second conductive column and the conductive boss are made of any one of the following materials: copper, silver or other materials with conductive properties, and the sleeve and the trigger rod are made of insulating materials.

[0019] In a preferred embodiment, the monitoring quantity adjustment part includes a threaded bushing, two connecting rods and a retaining ring, the threaded bushing is threadedly connected to the lower end inside the suction cup seat, the two connecting rods are fixed inside the threaded bushing, the retaining ring is fixed between the two connecting rods, and the retaining ring and the sleeve are rotatably connected through a ball bearing.

[0020] In a preferred embodiment, a scale surface is provided on the outer side of the clamping ring, and a plurality of scale marks are evenly provided on the scale surface.

[0021] In a preferred embodiment, a plurality of driving grooves are formed at the lower end of the threaded bushing.

[0022] The technical effects achieved by the present invention are:

[0023] The present invention adjusts the position of the internal thread limit rod by driving the motor, thereby adjusting the upper limit of the stroke of the rubber piston, and adjusting the maximum value of the vacuum degree inside the adsorption chamber by the position of the rubber piston, so that the device can adjust the vacuum degree inside the adsorption chamber without using precision components such as solenoid valves, thereby reducing the structural complexity, purchase cost and maintenance cost of the device;

[0024] When the present invention uses the vacuum suction cup to absorb and transport the film material, when the vacuum degree inside the adsorption chamber is relatively large, the film material will be stretched and deformed, and the deformed film material drives the trigger rod and the conductive boss to move. When the early warning circuit changes from the open circuit state to the open circuit state, the early warning element sends a warning signal, which is convenient for the staff to prompt the maximum value of the vacuum degree inside the adsorption chamber to be adjusted, so as to avoid the phenomenon of plastic deformation or rupture of the film material caused by the large vacuum degree.

[0025] In the initial state of the present invention, the position of the sleeve is adjusted by rotating the threaded bushing, and then the distance between the first conductive column and the conductive boss and the distance between the second conductive column and the conductive boss are adjusted, so that the spacing between the first conductive column and the conductive boss can be consistent with the maximum elastic deformation of the film material, so that the device can be suitable for different film materials, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall structure of the suction cup seat of the present invention;

[0028] Figure 3 It is a structural cross-sectional view of the interior of the suction cup seat of the present invention;

[0029] Figure 4 It is a schematic diagram of the internal structure of the suction cup seat of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the rubber piston of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the vacuum degree adjustment part of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the deformation monitoring part of the present invention;

[0033] Figure 8 is a structural cross-sectional view of a deformation monitoring portion of the present invention;

[0034] Fig. 9 It is a structural exploded diagram of the deformation monitoring part of the present invention;

[0035] Fig.10It is a structural schematic diagram of the monitoring quantity adjustment unit of the present invention.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 10. Carrying cross arm; 11. Suction cup seat; 12. Vacuum suction cup; 13. Air circuit connector; 14. Piston chamber; 15. Rubber piston; 16. Adsorption chamber; 17. Pressure regulating chamber; 18. Elastic element;

[0038] 20. Vacuum degree adjustment unit;

[0039] 21. driving motor; 22. threaded shaft; 23. guide plate; 24. internal thread limit rod; 25. anti-rotation surface;

[0040] 30. Deformation monitoring department;

[0041] 31. sleeve; 32. first conductive column; 33. second conductive column; 34. trigger rod; 35. conductive boss; 36. first circuit connector; 37. second circuit connector; 38. anti-rotation rod; 39. anti-rotation groove;

[0042] 40. Monitoring quantity adjustment department;

[0043] 41. Threaded bushing; 42. Connecting rod; 43. Snap ring; 44. Scale surface; 45. Driving groove. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0046] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0047] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0048] Embodiment 1

[0049] Please see attached Figures 1 to 5 As shown, it is the first embodiment of the present invention, which provides a film material handling device for product lamination, including a handling cross arm 10, both sides of the handling cross arm 10 are detachably equipped with a plurality of suction cup seats 11, the bottom of the suction cup seat 11 is detachably equipped with a vacuum suction cup 12, the upper end of the outer side of the suction cup seat 11 is threadedly connected with an air circuit connector 13, the interior of the suction cup seat 11 is provided with a piston cavity 14, the interior of the piston cavity 14 is slidably connected with a rubber piston 15, the interior of the suction cup seat 11 is separated into an adsorption cavity 16 and a pressure regulating cavity 17 by the rubber piston 15, the adsorption cavity 16 is located at the lower end of the rubber piston 15, the pressure regulating cavity 17 is located at the upper end of the rubber piston 15, and the pressure regulating cavity 17 and the air circuit connector 13 are connected to each other, and an elastic element 18 is installed between the suction cup seat 11 and the rubber piston 15, and also includes:

[0050] A vacuum degree adjusting part 20 , which is mounted on the suction cup seat 11 and can adjust the stroke of the rubber piston 15 inside the piston chamber 14 ;

[0051] The deformation monitoring part 30 is mounted at the lower end of the suction cup seat 11 and is located inside the adsorption chamber 16. The deformation monitoring part 30 can monitor the deformation of the membrane material;

[0052] The monitoring amount adjusting part 40 is assembled at the lower end of the suction cup seat 11, and the monitoring amount adjusting part 40 is connected to the deformation monitoring part 30;

[0053] In the initial state, the elastic element 18 is in a compressed state. After the vacuum suction cup 12 and the film material are attached to each other, the greater the stroke of the rubber piston 15 is, the greater the vacuum degree inside the adsorption chamber 16 is.

[0054] Here, a mobile module and an air pump element are used in conjunction with the device. The mobile module is connected to the transport cross arm 10, and the mobile module can drive the device to move and transport the film material. The air pump element and the air path connector 13 are connected through a diverter valve and an air flow pipeline. The air pump element can transport or extract gas to the inside of the suction cup seat 11 through the diverter valve and the air flow pipeline. After the lower end of the vacuum suction cup 12 is tightly fitted to the film material, when the air pump element extracts the gas inside the suction cup seat 11, the vacuum degree inside the suction cup seat 11 increases, and when the air pump element transports gas to the inside of the suction cup seat 11, the vacuum degree inside the suction cup seat 11 decreases.

[0055] In this embodiment, different membrane materials have different mechanical strengths and flexibilities. Before the membrane material is transported, the maximum vacuum degree inside the adsorption chamber 16 is adjusted according to the physical properties of the membrane material. Specifically, the vacuum degree adjustment unit 20 is operated to adjust the upper limit of the stroke of the rubber piston 15 inside the piston chamber 14 through the vacuum degree adjustment unit 20. The larger the upper limit of the stroke of the rubber piston 15, the larger the maximum vacuum degree inside the adsorption chamber 16. The smaller the upper limit of the stroke of the rubber piston 15, the smaller the maximum vacuum degree inside the adsorption chamber 16. After the maximum vacuum degree inside the adsorption chamber 16 is adjusted, the transport cross arm 10 and the plurality of vacuum suction cups 12 are moved to the top of the transported membrane material through the mobile module, and the plurality of vacuum suction cups 12 are moved to the top of the transported membrane material ... The suction cup 12 and the film material are in contact with each other, and the air pump element is started. The gas inside the suction cup seat 11 is extracted through the air pump element, so that the gas inside the pressure regulating chamber 17 flows to the air pump element, and then the rubber piston 15 moves upward. When the rubber piston 15 moves upward, a negative pressure space is formed inside the adsorption chamber 16. At the same time, the vacuum degree inside the adsorption chamber 16 gradually increases, and then the film material is adsorbed by the cooperation of the adsorption chamber 16 and the vacuum suction cup 12, so that the film material can be transported by the mobile module. When the film material is transported to the specified position, gas is input into the pressure regulating chamber 17 through the air pump element, so that the rubber piston 15 moves downward, and the vacuum degree inside the adsorption chamber 16 gradually decreases until the vacuum suction cup 12 no longer adsorbs the film material.

[0056] Next, please refer to Figure 6 The vacuum degree adjustment part 20 includes a driving motor 21, a threaded shaft 22, a guide plate 23 and an internal threaded limit rod 24. The driving motor 21 is fixed to the upper end of the suction cup seat 11, the threaded shaft 22 is fixed to the output end of the driving motor 21, and the suction cup seat 11 and the driving motor 21 are rotatably connected through a sealed bearing. The guide plate 23 is fixed to the upper end of the suction cup seat 11 and is located inside the pressure regulating chamber 17. The internal threaded limit rod 24 is slidably connected to the inside of the guide plate 23, and the threaded shaft 22 and the guide plate 23 are threadedly connected. A stop surface 25 is provided on the outer side of the internal threaded limit rod 24, and a chamfered surface is provided on the inner side of the guide plate 23, and the stop surface 25 and the chamfered surface are adapted to each other.

[0057] Here, the drive motor 21 is preferably a servo motor.

[0058] In this embodiment, when the maximum vacuum degree inside the adsorption chamber 16 is adjusted according to the physical properties of the membrane material, the drive motor 21 is started to rotate the output end of the drive motor 21, and the drive motor 21 drives the threaded shaft 22 to rotate through the fixed connection between the drive motor 21 and the threaded shaft 22, and the threaded shaft 22 drives the internal threaded limit rod 24 to move in the vertical direction through the threaded connection between the threaded shaft 22 and the internal threaded limit rod 24 and the sliding connection between the guide plate 23 and the internal threaded limit rod 24, wherein when the internal threaded limit rod 24 moves upward, the upper limit of the stroke of the rubber piston 15 increases, and the maximum vacuum degree inside the adsorption chamber 16 also increases accordingly, and when the internal threaded limit rod 24 moves downward, the upper limit of the stroke of the rubber piston 15 decreases, and the maximum vacuum degree inside the adsorption chamber 16 also decreases accordingly.

[0059] It should be noted that the vacuum degree inside the adsorption chamber 16 is proportional to the stroke of the rubber piston 15, and the specific relationship is related to the diameter of the rubber piston 15 and the density of the gas medium inside the pressure regulating chamber 17. The specific ratio of the stroke of the rubber piston 15 to the vacuum degree inside the adsorption chamber 16 can be obtained through multiple tests or other methods, and no further details will be given here.

[0060] Next, please refer to Figures 7 to 9 The deformation monitoring part 30 includes a sleeve 31, a first conductive column 32, a second conductive column 33, a trigger rod 34, a conductive boss 35, a first circuit connector 36 and a second circuit connector 37. The sleeve 31 is slidably connected to the inside of the suction cup seat 11 and is located inside the adsorption chamber 16, and the sleeve 31 is connected to the monitoring amount adjustment part 40. The first conductive column 32 and the second conductive column 33 are both fixed to the upper end of the sleeve 31, and the upper end of the first conductive column 32 and the upper end of the second conductive column 33 both pass through the upper end of the sleeve 31. The trigger rod 34 is slidably connected to the inside of the sleeve 31 in a clearance fit manner. The conductive boss 35 is fixed to the upper end of the trigger rod 34. The first circuit connector 36 and the second circuit connector 37 are both arranged in the side wall of the suction cup seat 11, and the first conductive column 32 and the first conductive boss 35 are fixed to the upper end of the trigger rod 34. The circuit connector 36 and the second conductive column 33 and the second circuit connector 37 are electrically connected through a wire, wherein the first conductive column 32, the second conductive column 33, the conductive boss 35, the first circuit connector 36 and the second circuit connector 37 constitute an early warning circuit. When the conductive boss 35 and the first conductive column 32 and the conductive boss 35 and the second conductive column 33 are in contact with each other, the early warning circuit is in a connection state. When the conductive boss 35 and the first conductive column 32 and the conductive boss 35 and the second conductive column 33 are away from each other, the early warning circuit is in a disconnection state. The material of the first conductive column 32, the second conductive column 33 and the conductive boss 35 is any one of the following materials: copper, silver or other materials with conductive properties. The material of the sleeve 31 and the trigger rod 34 are both insulating materials.

[0061] Furthermore, in the initial state, the warning circuit is in a conducting state, and the lower end of the second conductive column 33 and the lower end of the vacuum suction cup 12 are located in the same horizontal plane.

[0062] Here, there is an early warning element connected to the early warning circuit. When the early warning circuit is in a connection state, the early warning element sends out an alarm signal. The alarm signal may be in one or more of the following alarm modes: light alarm, sound alarm or other alarm modes.

[0063] In this embodiment, in the initial state, the maximum elastic deformation of the film material is determined according to the physical properties of the film material, and the monitoring amount adjustment unit 40 is operated. The sleeve 31 is driven to move in the vertical direction through the monitoring amount adjustment unit 40, so that the conductive boss 35 and the first conductive column 32 and the second conductive column 33 are separated from each other (at this time, the early warning circuit is changed from the open state to the short circuit state), until the distance between the conductive boss 35 and the first conductive column 32 and the conductive boss 35 and the second conductive column 33 is consistent with the maximum elastic deformation of the film material. When the mobile module drives the device to transport the film material, the air pump element is started to adsorb the film material (at this time, the lower end of the vacuum suction cup 12 and the lower end of the trigger rod 34 are The ends and the membrane material are in contact with each other), when the vacuum degree inside the adsorption chamber 16 is relatively large, the membrane material will gradually stretch and elastically deform, and the elastic deformation of the membrane material will gradually increase, and the deformed membrane material will drive the trigger rod 34 and the conductive boss 35 to move upward. When the deformation of the membrane material reaches the maximum elastic deformation, the early warning circuit changes from a short-circuit state to a pass state, and a warning signal is sent out through the early warning element to notify the staff to adjust the vacuum degree inside the adsorption chamber 16 in time to avoid the membrane material from continuing to stretch and causing the membrane material to rupture. Through the above-mentioned arrangement, the device can monitor the deformation of the membrane material to avoid plastic deformation or rupture of the membrane material caused by excessive vacuum in the adsorption chamber 16.

[0064] It should be noted that elastic deformation refers to the phenomenon that a material deforms under the action of an external force, and when the external force is removed, the material can completely return to its original state. This deformation is reversible, that is, after the material undergoes elastic deformation, its internal structure and properties do not change permanently, that is, it can deform when subjected to force, and return to its original state after the force is removed; plastic deformation is a deformation phenomenon that cannot be self-recovered, in which the material is permanently deformed under the action of an external force and cannot return to its original state after the external force is removed.

[0065] See also Figure 7 As shown, two anti-rotation rods 38 are fixed inside the suction cup seat 11 and inside the adsorption chamber 16, and the two anti-rotation rods 38 are symmetrically arranged, and a plurality of anti-rotation grooves 39 are opened on the outside of the sleeve 31, and the plurality of anti-rotation rods 38 and the plurality of anti-rotation grooves 39 are adapted one by one.

[0066] In this embodiment, since the first conductive column 32 and the first circuit connector 36 as well as the second conductive column 33 and the second circuit connector 37 are electrically connected via wires, the cooperation of the anti-rotation rod 38 and the anti-rotation groove 39 can prevent the sleeve 31 from rotating relative to the suction cup seat 11 when the monitoring quantity adjustment part 40 drives the sleeve 31 to move, thereby preventing the wires between the first conductive column 32 and the first circuit connector 36 as well as the second conductive column 33 and the second circuit connector 37 from being entangled and twisted.

[0067] Please refer again Figure 8 and Fig.10 As shown, the lower end of the suction cup seat 11 is equipped with a monitoring quantity adjustment part 40, and the monitoring quantity adjustment part 40 includes a threaded bushing 41, two connecting rods 42 and a retaining ring 43. The threaded bushing 41 is threadedly connected to the lower end of the suction cup seat 11, and the two connecting rods 42 are symmetrically fixed inside the threaded bushing 41. The retaining ring 43 is fixed between the two connecting rods 42, and the retaining ring 43 and the sleeve 31 are rotatably connected.

[0068] Furthermore, a rotating element (such as a ball bearing) is installed between the retaining ring 43 and the sleeve 31. The setting of the rotating element allows the threaded bushing 41 and the sleeve 31 to rotate relative to each other, but the relative positions of the threaded bushing 41 and the sleeve 31 will not change in the vertical direction.

[0069] In this embodiment, in the initial state, when the distance between the conductive boss 35 and the first conductive column 32 and the conductive boss 35 and the second conductive column 33 is adjusted according to the physical properties of the film material (i.e., the maximum elastic deformation of the film material), the threaded bushing 41 is rotated, and the threaded connection between the threaded bushing 41 and the suction cup seat 11 is used to make the threaded bushing 41 move relative to the suction cup seat 11 in the vertical direction. Since the threaded bushing 41 and the connecting rod 42 as well as the connecting rod 42 and the retaining ring 43 are fixedly connected, the threaded bushing 41 drives the connecting rod 42 and the retaining ring 43 to move synchronously, and the retaining ring 43 drives the sleeve 31 to move synchronously through the rotational connection between the retaining ring 43 and the sleeve 31, thereby adjusting the distance between the first conductive column 32 and the conductive boss 35 and the distance between the second conductive column 33 and the conductive boss 35, so that the device can be applied to different film materials, thereby improving the application range of the device.

[0070] Please refer again Fig.10 A scale surface 44 is formed on the outer side of the clamping ring 43 , and a plurality of scale marks are evenly formed on the scale surface 44 .

[0071] It should be noted that, in this embodiment, a scale mark located at the uppermost end is recorded as a reference mark, and in the initial state, the lower end of the suction cup seat 11 and the reference mark are located in the same horizontal plane.

[0072] In this embodiment, the setting of the scale mark facilitates the staff to accurately read the movement amount of the sleeve 31 and then determine the distance between the first conductive column 32 and the conductive boss 35 and the distance between the second conductive column 33 and the conductive boss 35 .

[0073] Please refer again Fig.10 A plurality of driving grooves 45 are formed in an annular shape at the lower end of the threaded bushing 41 .

[0074] It should be noted that a tool (such as a flat screwdriver or a cross screwdriver) is also used in conjunction with the driving groove 45 .

[0075] In this embodiment, the provision of the driving groove 45 facilitates the staff to apply force when rotating the threaded bushing 41, making the device easy to use.

[0076] The working principle of the present invention is:

[0077] When the maximum vacuum degree inside the adsorption chamber 16 is adjusted according to the physical characteristics of the membrane material, the drive motor 21 is started, and the threaded shaft 22 is driven to rotate by the drive motor 21, and the position of the internal threaded limit rod 24 is adjusted by the threaded shaft 22, thereby adjusting the upper limit of the stroke of the rubber piston 15 (that is, adjusting the maximum vacuum degree inside the adsorption chamber 16), and the transport cross arm 10 and the plurality of vacuum suction cups 12 are driven by the mobile module to move to the top of the membrane material, so that the plurality of vacuum suction cups 12 and the membrane material, as well as the second conductive column 33 and the membrane material are all in contact with each other, and the air pump element is started, and the air pump element is used to pump the membrane material. The gas inside the pressure regulating chamber 17 is taken to move the rubber piston 15 upward, and the vacuum degree inside the adsorption chamber 16 is gradually increased. The film material is adsorbed by the cooperation of the vacuum suction cup 12 and the adsorption chamber 16. When the vacuum degree inside the adsorption chamber 16 is relatively large, causing the film material to be stretched and deformed, the deformed film material drives the trigger rod 34 to move upward. When the deformation of the film material reaches the maximum elastic deformation, the early warning circuit changes from an open circuit state to a closed circuit state, and the early warning element issues an alarm to remind the staff, so that the staff can reduce the vacuum degree inside the adsorption chamber 16 in time to avoid plastic deformation or rupture of the film material.

[0078] The above are only preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the art unless otherwise specified and limited.

Claims

1. A film material conveying device for product lamination, characterized in that: The invention comprises a transport cross arm (10), wherein a plurality of suction cup seats (11) are detachably mounted on both sides of the transport cross arm (10), a vacuum suction cup (12) is detachably mounted on the bottom of the suction cup seat (11), an air path joint (13) is threadedly connected to the upper end of the outer side of the suction cup seat (11), a piston cavity (14) is provided inside the suction cup seat (11), a rubber piston (15) is slidably connected inside the piston cavity (14), an adsorption cavity (16) and a pressure regulating cavity (17) are separated inside the suction cup seat (11) by the rubber piston (15), an elastic element (18) is mounted between the suction cup seat (11) and the rubber piston (15), and further comprises: A vacuum degree adjustment part (20), the vacuum degree adjustment part (20) being mounted on the suction cup seat (11), and the vacuum degree adjustment part (20) being capable of adjusting the stroke of the rubber piston (15) inside the piston chamber (14); A deformation monitoring part (30), the deformation monitoring part (30) is mounted on the lower end inside the suction cup seat (11), and the deformation monitoring part (30) can monitor the deformation amount of the film material; A monitoring quantity adjustment part (40), the monitoring quantity adjustment part (40) being assembled at the lower end inside the suction cup seat (11), the monitoring quantity adjustment part (40) being connected to the deformation monitoring part (30); In the initial state, the elastic element (18) is in a compressed state. After the vacuum suction cup (12) and the film material are attached to each other, the greater the stroke of the rubber piston (15), the greater the vacuum degree inside the adsorption chamber (16).

2. The film material conveying device for product lamination according to claim 1, characterized in that: The vacuum degree adjustment part (20) comprises a driving motor (21), a threaded shaft (22), a guide plate (23) and an internally threaded limiting rod (24); the driving motor (21) is fixed to the upper end of the suction cup seat (11); the threaded shaft (22) is fixed to the output end of the driving motor (21); the suction cup seat (11) and the driving motor (21) are rotatably connected via a sealed bearing; the guide plate (23) is fixed to the upper end of the suction cup seat (11) and is located inside the pressure regulating chamber (17); the internally threaded limiting rod (24) is slidably connected to the inside of the guide plate (23); and the threaded shaft (22) and the guide plate (23) are threadedly connected.

3. The film material conveying device for product lamination according to claim 2, characterized in that: A rotation-stopping surface (25) is provided on the outer side of the internal thread limiting rod (24), a chamfered surface is provided on the inner side of the guide plate (23), and the rotation-stopping surface (25) and the chamfered surface are matched.

4. The film material conveying device for product lamination according to claim 1, characterized in that: The deformation monitoring part (30) comprises a sleeve (31), a first conductive column (32), a second conductive column (33), a trigger rod (34), a conductive boss (35), a first circuit connector (36) and a second circuit connector (37); the sleeve (31) is slidably connected to the inside of the suction cup seat (11), and the sleeve (31) is connected to the monitoring amount adjustment part (40); the first conductive column (32) and the second conductive column (33) are both fixed to the upper end of the sleeve (31); the trigger rod (34) is slidably connected to the inside of the sleeve (31); the conductive boss (35) is fixed to the upper end of the trigger rod (34); the first circuit connector (36) and the second circuit connector (37) are both arranged on the suction cup seat (11); The side wall is electrically connected between the first conductive column (32) and the first circuit connector (36) and the second conductive column (33) and the second circuit connector (37) through a wire, wherein the first conductive column (32), the second conductive column (33), the conductive boss (35), the first circuit connector (36) and the second circuit connector (37) constitute an early warning circuit. When the conductive boss (35) and the first conductive column (32) and the conductive boss (35) and the second conductive column (33) are in contact with each other, the early warning circuit is in a connection state. When the conductive boss (35) and the first conductive column (32) and the conductive boss (35) and the second conductive column (33) are away from each other, the early warning circuit is in a disconnection state.

5. The film material conveying device for product lamination according to claim 4, characterized in that: In the initial state, the warning circuit is in a conducting state, and the lower end of the second conductive column (33) and the lower end of the vacuum suction cup (12) are located on the same horizontal plane.

6. The film material conveying device for product lamination according to claim 4, characterized in that: A rotation-stopping rod (38) is fixed inside the suction cup seat (11) and inside the adsorption chamber (16), and a rotation-stopping groove (39) is provided on the outside of the sleeve (31), and the rotation-stopping rod (38) and the rotation-stopping groove (39) are matched with each other.

7. The film material conveying device for product lamination according to claim 4, characterized in that: The first conductive column (32), the second conductive column (33) and the conductive boss (35) are made of any one of the following materials: copper, silver or other materials with conductive properties, and the sleeve (31) and the trigger rod (34) are made of insulating materials.

8. The film material conveying device for product lamination according to claim 4, characterized in that: The monitoring quantity adjustment part (40) comprises a threaded bushing (41), two connecting rods (42) and a snap ring (43); the threaded bushing (41) is threadedly connected to the lower end inside the suction cup seat (11); the two connecting rods (42) are fixed inside the threaded bushing (41); the snap ring (43) is fixed between the two connecting rods (42); and the snap ring (43) and the sleeve (31) are rotatably connected via a ball bearing.

9. The film material conveying device for product lamination according to claim 8, characterized in that: The outer side of the clamping ring (43) is provided with a scale surface (44), and a plurality of scale marks are evenly provided on the scale surface (44).

10. The film material conveying device for product lamination according to claim 8, characterized in that: The lower end of the threaded bushing (41) is provided with a plurality of driving grooves (45).

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