Film sticking machine for lead frame

Abstract

The utility model discloses a film sticking machine for a lead frame. The film sticking machine comprises a feeding mechanism which is sequentially arranged on a rack workbench, and the feeding mechanism pushes electronic products in a product box to a first conveying assembly; the cleaning mechanism is used for cleaning the surface of the electronic product conveyed by the first conveying assembly through a rubber coating roller and conveying the electronic product to the second conveying assembly; the shifting mechanism moves in the transverse direction and the longitudinal direction so as to push the electronic products conveyed on the second conveying assembly. The conveying belt mechanism receives electronic products to a flat belt and conveys the electronic products backwards, and a pressing plate capable of ascending and descending is suspended above the flat belt. The adhesive tape feeding and collecting mechanism is used for releasing an original film and tearing off a layer of non-adhesive film to form a first-time adhesive film, and the first-time adhesive film is forwards conveyed to the rear end of the material shifting mechanism through a plurality of guide rotating shafts; the roller mechanism heats the first film and then presses the first film to the surface of the electronic product; and a blade of the cutter mechanism cuts off the first film on the electronic product pressed by the pressing plate. The automatic film pasting device is compact in structure and meets the automatic film pasting requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of improved design of film sticking equipment, in particular to a film sticking machine for a lead frame. Background Art

[0002] At present, a layer of protective blue film is attached to the surface of electronic products such as lead frames to avoid surface scratches or to prevent particles or dust in the working environment from falling onto the surface of the substrate, thereby causing quality problems. The existing ordinary film-sticking equipment does not have a fully automatic film-sticking system and a visual defect detection device. It mainly relies on manual inspection, which requires operators to concentrate highly and be in a tense state for a long time. It is inefficient and prone to errors, and the work experience is not good. In general, when operators use ordinary film-sticking equipment, it is not easy to find product defects in time during the production process, which leads to a large amount of material waste. Even if the operator finds defects in time, it is necessary to manually peel off the film and adjust the machine to run the material again, which takes a long time. In addition, new defects may be added during the film-sticking process, which is not only time-consuming and labor-intensive, but also has a low product yield.

[0003] In the prior art, the patent with announcement number CN107645845B discloses an automatic film laminating machine for circuit boards, including a mounting plate, on which a glue feeding and tearing device is adapted to be provided, for conveying and tearing adhesive tape with glue; an adsorption manipulator, for adsorbing the torn adhesive tape with glue; a laser cutting machine, located below the adsorption manipulator, for cutting the adhesive tape with glue; a glue feeding and cutting module, for conveying and cutting adhesive tape without glue; and a circuit board conveying device, for conveying circuit boards; the adsorption manipulator attaches the adhesive tape with adhesive tape and the adhesive tape without glue to the circuit board on the circuit board conveying device. The present invention can be used in the technical field of automatic production lines for laminating circuit boards.

[0004] In the above technical solution, an adsorption robot is used to stick the adhesive tape with the non-adhesive tape together and then attach it to the circuit board on the circuit board conveying device, thereby realizing fully automatic adhesive and film sticking work, but it is impossible to realize the operation of continuous film sticking of products.

[0005] In order to solve one of the above problems, the present application provides a film laminating machine for a lead frame. Utility Model Content

[0006] The utility model aims to solve the problems existing in the prior art and proposes a film laminating machine for a lead frame, which has a compact overall structure and meets the needs of automatic film laminating.

[0007] To achieve the above object, the utility model adopts the following technical solutions: A film pasting machine for a lead frame, comprising a feeding mechanism sequentially arranged on the working table of the frame. The feeding mechanism includes a first conveying component, a pushing component and a clamping component. A liftable baffle is arranged on the first conveying component. The clamping component controls the horizontal movement and lifting movement of the clamped product box to be suspended between the first conveying component and the pushing component, and the electronic product in the product box is pushed out onto the first conveying component by the pushing component;

[0008] A cleaning mechanism, the cleaning mechanism includes a lower rubber-coated roller that rotates to work, and an upper rubber-coated roller is arranged above the lower rubber-coated roller. The first conveying component conveys the electronic product between the upper rubber-coated roller and the lower rubber-coated roller to complete the surface cleaning operation and is conveyed onto the second conveying component. A heating block is arranged on the second conveying component;

[0009] A material pushing mechanism, the material pushing mechanism includes a push block, and the push block can move in the horizontal and vertical directions to push the electronic product conveyed on the second conveying component;

[0010] A conveyor belt mechanism, the conveyor belt mechanism includes a plurality of flat belts driven by a motor after speed reduction. The push block faces the front end of the flat belt to push the electronic product onto the flat belt and convey it backward. A plurality of pressure rollers and pressing plates are suspended above the flat belt, and the pressing plates are arranged above two adjacent flat belts in a liftable manner;

[0011] A tape feeding and receiving mechanism, the tape feeding and receiving mechanism includes a feeding roll and a receiving roll. The original film on the feeding roll is fed and a non-stick film is wound and torn off by the receiving roll to form the first film pasting. The first film pasting is conveyed forward through a plurality of guiding rotating shafts to the rear end of the material pushing mechanism;

[0012] A roller mechanism, the roller mechanism includes a heating roller group. The heating roller group is located at the rear end of the material pushing mechanism and can lift and adjust its own height and roller spacing. The first film pasting is heated by the heating roller group and then pressed onto the surface of the electronic product. A false tape that can be retracted and conveyed is also threaded between the heating roller groups;

[0013] A cutting knife mechanism, the cutting knife mechanism includes a blade that can be lifted and horizontally displaced. The blade cuts off the first film pasting on the electronic product pressed by the pressing plate.

[0014] The first conveying component includes two relatively arranged first synchronous belts. The first synchronous belts are installed on the second support plate group. A liftable baffle is arranged between the two second support plate groups. The pushing component includes a pushing cylinder, and the pushing cylinder drives the pushing rod to reciprocate horizontally. The height of the pushing rod is flush with the first synchronous belt. The clamping component includes a clamping cylinder, and the clamping cylinder clamps the product box through a clamping plate. The clamping cylinder is fixed on the horizontal displacement component, and the horizontal displacement component is arranged on the lifting component.

[0015] A second motor is provided on the second support plate group. After the speed of the second motor is reduced, it drives a first synchronous belt mechanism. The first synchronous belt mechanism includes a driving wheel, a driven wheel for installing the first synchronous belt, and a tensioning adjustment wheel. The two tensioning adjustment wheels are coaxial and connected to the output shaft after the speed of the second motor is reduced. The baffle is driven by a lifting cylinder assembly, and a second sensor is suspended above the baffle. The pushing cylinder is installed on the first support plate group, and a first sensor is provided on the first support plate group. The clamping cylinder includes two clamping plates that are opposite up and down. The horizontal displacement assembly is a horizontal cylinder, and the lifting assembly includes a screw mechanism. The screw of the screw mechanism is driven after the speed of the first motor is reduced. A nut seat is connected to the screw, and the horizontal cylinder is installed on the nut seat.

[0016] The lower rubber-coated roller is installed on the fourth support plate group and is driven after the speed of the fourth motor is reduced. The second conveying assembly includes two second synchronous belts arranged side by side for supporting electronic products, and a heating block is provided between the two second synchronous belts.

[0017] The fourth motor is connected to a speed reducer. The speed reducer is fixed on the side of the fourth support plate group and is connected to the rotating shaft of the lower rubber-coated roller through an output shaft. A vertical guide rail is provided on the fourth support plate group, and a lifting movable plate is slidably provided on the vertical guide rail. The lifting movable plate is connected to the rotating shaft of the upper rubber-coated roller. The second synchronous belt is installed on the third support plate group. A heating block is provided between the two third support plate groups. The height of the heating block is lower than that of the upper conveyor belt of the second synchronous belt for conveying electronic products. Third sensors are respectively provided at both ends of the heating block.

[0018] A conveying assembly is provided between the pushing block and the flat belt. The conveying assembly includes two relatively arranged first support seats and a plurality of support rollers installed on the first support seats. The pushing block is arranged on a pressure rod. The pressure rod is fixed on a first lifting cylinder. The first lifting cylinder is installed on the cylinder fixing plate of the first electric cylinder. Both the first electric cylinder and the first support seat are arranged on the workbench.

[0019] The trays of the material feeding reel and the material taking-up reel are both arranged on the vertical plate and are respectively driven after the speed of the first motor and the second motor is reduced. A plurality of horizontally arranged guiding rotating shafts are installed on the vertical plate. The vertical plate is vertically fixed on the workbench, and an industrial camera facing the pressing plate is also installed on the vertical plate.

[0020] The heating roller group includes an upper heating roller and a lower heating roller that are opposite up and down. The two ends of the rotating shaft of the upper heating roller are respectively arranged on the frame plate and are connected to two second lifting cylinders. The two ends of the rotating shaft of the lower heating roller are respectively arranged on the frame plate and are driven after the speed of the third motor is reduced. The frame plate is installed on the workbench and is divided into upper and lower parts. A first retaining wheel and a second retaining wheel driven after the speed of the motor is reduced are provided under the workbench of the frame plate for taking in and paying out the false tape.

[0021] The described cutting knife is fixed on the sliding table cylinder through an adjusting block. The sliding table cylinder is installed on the moving plate, and the moving plate is driven by a planar displacement assembly. The planar displacement assembly includes a second electric cylinder and a third electric cylinder whose linear motions are perpendicular to each other. The moving plate is arranged on the second nut seat of the second electric cylinder. The second electric cylinder is arranged on the third nut seat of the third electric cylinder, and the third electric cylinder is arranged on the workbench.

[0022] A third lifting cylinder is connected below the pressing plate. The pressing plate is an open plate member. Two flat belts are arranged on both sides of the pressing plate and are respectively driven after being decelerated by a fourth motor and a fifth motor. A waste suction pipe is also arranged below the pressing plate.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows: The various sub - mechanisms of this device are compactly arranged, and each working station cooperates with each other, enabling continuous automated film - sticking operations with high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three - dimensional view of the present utility model;

[0025] Figure 2 is a top view of the present utility model;

[0026] Figure 3 is a schematic diagram of the loading mechanism of the present utility model;

[0027] Figure 4 is Figure 3 a partial schematic diagram of

[0028] Figure 5 is Figure 3 a schematic diagram of the first conveying assembly in

[0029] Figure 6 is Figure 5 an exploded schematic diagram of

[0030] Figure 7 is a schematic diagram of the cleaning mechanism of the present utility model;

[0031] Figure 8 is Figure 7 a partial schematic diagram of

[0032] Figure 9 is Figure 7 a schematic diagram of the first conveying assembly of

[0033] Figure 10 is a three - dimensional Figure 1 ;

[0034] Figure 11 is a three - dimensional Figure 2 ;

[0035] Figure 12 For Figure 10 Explosion schematic diagram after removing the workbench;

[0036] Figure 13 For Figure 10 Schematic diagram of the stock feeding mechanism;

[0037] Figure 14 For Figure 10 Schematic diagram of the tape feeding and receiving mechanism;

[0038] Figure 15 For Figure 10 Schematic diagram of the new roller mechanism;

[0039] Figure 16 For Figure 10 Schematic diagram of the cutting tool mechanism;

[0040] Figure 17 For Figure 10 Schematic diagram of the conveyor belt mechanism;

[0041] Figure 18 For Figure 11 Schematic diagram of the positional relationship between the stock feeding mechanism and the conveyor belt mechanism.

[0042] In the figure: 1. Loading mechanism; 10. Product box; 11. Pushing cylinder; 12. Lifting component; 13. Horizontal displacement component; 14. Clamping cylinder; 15. First support plate group; 16. First conveying component; 161. Second motor; 162. Second support plate group; 163. First synchronous belt mechanism; 164. Second sensor; 165. Baffle; 166. Lifting cylinder component; 2. Cleaning mechanism; 21. Fourth motor; 22. Lower rubber-coated roller; 23. Upper rubber-coated roller; 24. Lifting movable plate; 25. Fourth support plate group; 26. Second conveying component; 261. Third motor; 262. Third support plate group; 263. Second synchronous belt mechanism; 264. Third sensor; 265. Heating block; 3. Pushing material mechanism; 31. Pushing block; 32. Pressing rod; 33. First lifting cylinder; 34. Cylinder fixing plate; 35. First electric cylinder; 36. Support roller; 37. First support seat; 4. Tape feeding and receiving mechanism; 41. Unwinding reel; 42. Rewinding reel; 43. First motor; 44. Second motor; 45. Vertical plate; 46. Guide rotating shaft; 47. Original film; 48. First film pasting; 5. Roller mechanism; 51. Lower heating roller; 52. Upper heating roller; 53. Third motor; 54. Frame plate; 55. Second lifting cylinder; 56. First retaining wheel; 57. Second retaining wheel; 58. False tape; 6. Cutting mechanism; 61. Blade; 62. Adjusting block; 63. Slide table cylinder; 64. Industrial camera; 65. Moving plate; 66. Second electric cylinder; 67. Third electric cylinder; 7. Conveyor belt mechanism; 71. Second support seat; 72. Pressure plate; 73. Pressure wheel; 74. Flat belt; 75. Fourth motor; 76. Fifth motor; 77. Waste suction pipe. Detailed implementation mode

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0044] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "fixed", "installed", "connected", "set", etc. should be understood in a broad sense. For example, when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "installed on" another element, it can be directly installed on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements.

[0045] For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0047] Embodiment 1

[0048] Refer to Figure 1-18 As shown, a film pasting machine for a lead frame of the present utility model includes a loading mechanism sequentially arranged on the working table of the machine frame. The loading mechanism includes a first conveying component 16, a pushing component, and a clamping component. A liftable baffle 165 is arranged on the first conveying component 16. The clamping component controls the horizontally moving and lifting movements of the clamped product box 10 to be suspended between the first conveying component 16 and the pushing component, and the pushing component pushes the electronic products in the product box 10 onto the first conveying component 16.

[0049] A cleaning mechanism 2, the cleaning mechanism 2 includes a lower rubber-coated roller 22 that rotates, and an upper rubber-coated roller 23 is arranged above the lower rubber-coated roller 22. The first conveying component 16 conveys the electronic products to complete the surface cleaning operation between the upper rubber-coated roller 23 and the lower rubber-coated roller 22 and is conveyed onto the second conveying component 26. A heating block 265 is arranged on the second conveying component 26.

[0050] A material shifting mechanism 3, the material shifting mechanism 3 includes a pushing block 31. The pushing block 31 can move in the horizontal and vertical directions to push the electronic products. The moving directions of the pushing block 31 are the horizontal straight direction and the vertical lifting direction, and it can continuously push the electronic products conveyed from the previous process to the next process and reset.

[0051] The conveyor belt mechanism 7, the conveyor belt mechanism 7 includes a plurality of flat belts 74 driven by a motor after speed reduction. The push block 31 faces the front end of the flat belt 74 to push the electronic product onto the flat belt 74 and convey it backward. Above the flat belt 74, a plurality of pressure rollers 73 and a pressure plate 72 are suspended. The pressure rollers 73 press the electronic product onto the flat belt 74 so that the film after film sticking is tightly attached. The pressure plate 72 is arranged above two adjacent flat belts 74 in a liftable manner, so that the electronic product is pressed tightly onto the two adjacent flat belts 74 and temporarily stops moving forward, which is used to assist the subsequent cutting of the continuous film sticking operation;

[0052] The tape feeding and receiving mechanism 4, the tape feeding and receiving mechanism 4 includes a feeding reel 41 and a receiving reel 42. The original film 47 on the feeding reel 41 is fed and wound by the receiving reel 42 to tear off a layer of non-stick film to form the first film sticking 48. The first film sticking 48 is conveyed forward to the rear end of the material deflecting mechanism 3 through a plurality of guiding rotating shafts 46. The original film 47 is fed, and the receiving reel 42 winds up a layer of non-stick film on the surface of the original film 47 to obtain the first film sticking 48. The first film sticking 48 is pulled to be tightly attached to the surface of the electronic product. The electronic product conveys on the flat belt 74 to generate a traction force for the subsequent conveyance of the first film sticking 48, so that the first film sticking 48 can change the conveyance trajectory along a plurality of guiding rotating shafts 46;

[0053] The roller mechanism 5, the roller mechanism 5 includes a heating roller group. The heating roller group is located at the rear end of the material deflecting mechanism 3 and can lift and adjust its own height and roller spacing. The first film sticking 48 is heated by the heating roller group and then pressed and attached to the surface of the electronic product, and then is pushed onto the flat belt 74 and conveyed backward. A false tape 58 that can be retracted and conveyed is also arranged between the heating roller groups. The false tape 58 can protect the heating roller group during the conveyance process to prevent damage to the first film sticking 48 due to excessive temperature. At the same time, the length design of the false tape 58 can play a role in identifying batch products;

[0054] The cutting knife mechanism 6, the cutting knife mechanism 6 includes a blade 61 that can be lifted and horizontally displaced. The blade 61 cuts the first film sticking 48 on the electronic product pressed by the pressure plate 72. Since the first film sticking 48 is continuously stuck on adjacent electronic products during conveyance, it needs to be cut.

[0055] Embodiment 2

[0056] Refer to Figure 3-6As shown, based on the technical solution of the first embodiment, a laminating machine for lead frames, with respect to the specific structural design of the loading mechanism, the first conveying assembly 16 comprises two first synchronous belts arranged opposite to each other and a baffle 165 with an adjustable height located between the two. The raised position of the baffle 165 can block the electronic products conveyed on the two first synchronous belts. The electronic products are generally sheets, plates or frame structures. Both sides of the electronic products are supported and conveyed forward by the first synchronous belts respectively, so as to reduce the contact parts and avoid contamination of the electronic products; the pushing assembly comprises a pushing cylinder 11, which drives the pushing rod to reciprocate horizontally. The pushing rod and the first synchronous belt are at the same horizontal height, so that the electronic products can be pushed outward from the product box 10 to the first synchronous belt; The clamping assembly includes a clamping cylinder 14, which clamps the product box 10 through a clamping plate. The clamping cylinder 14 is fixed on a horizontal displacement assembly 13, and the horizontal displacement assembly 13 is arranged on a lifting assembly 12. After the product box 10 is clamped by the clamping cylinder 14, the horizontal displacement assembly 13 and the lifting assembly 12 work together to adjust the three-dimensional spatial position, so that the product box 10 is suspended between the first conveying assembly 16 and the pushing assembly under the control of the clamping assembly, and the electronic products in the product box 10 are pushed onto the first synchronous belt through the pushing rod. After each pushing operation of the pushing rod is completed, the pushing rod retreats and resets, and the product box 10 is raised once to keep the electronic products in the product box 10 and the axis of the pushing rod on the same horizontal line, waiting for the next pushing operation.

[0057] Furthermore, the product box 10 is a square box with both ends penetrated, and card slots are equidistantly arranged in the product box 10 and sheet-shaped or plate-shaped electronic products are inserted therein. The electronic products in the product box 10 are pushed outward by a push rod, and after being pushed out, the electronic products fall onto two first synchronous belts arranged side by side. The first synchronous belts convey the electronic products forward and can be blocked by the raised baffle 165 and stop moving forward, waiting to enter the next workstation. At this time, the first synchronous belt stops working without stopping, and the push rod stops pushing materials forward accordingly to avoid the accumulation of electronic products affecting the conveying operation. The overall working process is interrelated and closely coordinated to avoid misalignment or stacking of conveying and affecting the operation of the next process, or even causing a shutdown.

[0058] like Figure 5-6As shown in the figure, the first synchronous belt is installed on the second support plate group 162. The second support plate group 162 is a combination of vertical plates and right-angle plates. The two first synchronous belts are respectively arranged on the upper inner side of the second support plate group 162 to respectively support the two side parts of the electronic products to be conveyed. A liftable baffle 165 is arranged between the two second support plate groups 162. The baffle 165 is driven by a lifting cylinder assembly 166. A second sensor 164, generally an optoelectronic sensor, is suspended above the baffle 165 to detect whether there is an electronic product passing by. When the next process has not been completed and the second sensor 164 detects that an electronic product has passed by, it feeds back to the lifting cylinder assembly 166 to raise the baffle 165 to block the conveyance of the electronic product to the next cleaning station. At the same time, it feeds back to the pushing cylinder 11 to stop the pushing rod from pushing the material, so as to prevent the stacking of electronic products on the first synchronous belt.

[0059] Further, a second motor 161 is arranged on the second support plate group 162. After the speed of the second motor 161 is reduced, it drives the first synchronous belt mechanism 163. The first synchronous belt mechanism 163 includes a driving wheel, a driven wheel and a tensioning adjustment wheel for installing the first synchronous belt. The two tensioning adjustment wheels are coaxial and connected to the output shaft of the second motor 161 after the speed is reduced. The second motor 161 reduces the speed through a speed reducer. The speed reducer can be a gear speed reducer, a belt speed reducer, a chain drive speed reducer, etc., which will not be elaborated here. Since it is necessary to drive two first synchronous belt mechanisms 163 to work simultaneously, the output shaft of the speed reducer is connected to an intermediate shaft. Two driving wheels are arranged on the intermediate shaft. The driving wheel, the driven wheel and the tensioning adjustment wheel are connected by the first synchronous belt to drive the work. The position of the tensioning adjustment wheel on the second support plate can be finely adjusted to adjust the tension degree of the first synchronous belt.

[0060] As Figure 4 shown in the figure, the pushing cylinder 11 is horizontally installed on the first support plate group 15. A first sensor is arranged on the first support plate group 15 to detect whether the pushing rod extends outwards or is in the reset state.

[0061] As Figure 3-4 shown in the figure, the clamping cylinder 14 includes two clamping plates facing up and down. The clamping cylinder 14 drives the two clamping plates to approach or move away from each other to realize its clamping function. In addition, the horizontal displacement assembly 13 is a horizontal cylinder, which can extend or reset the clamping cylinder 14 as a whole to adjust its working position in the horizontal direction. In addition, the lifting assembly 12 includes a lead screw mechanism. The lead screw of the lead screw mechanism is driven after the speed is reduced by a first motor. A nut seat is connected to the lead screw, and a horizontal cylinder is installed on the nut seat. The first motor reduces the speed through a speed reducer. The lead screw mechanism is a conventional and mature component, which will not be elaborated here, and is used to adjust the overall height position of the horizontal cylinder.

[0062] To facilitate the lifting adjustment during the material pushing process of the product box 10, hole positions need to be set at the projection of the horizontal displacement component 13 on the workbench. For the stacking of the product boxes 10, the conventional design is to stack them directly on top of each other, but this is not conducive to the up-and-down clamping operation of the clamping plates. Therefore, a small improvement is also required. The product boxes 10 are placed on the synchronous belts for transportation. Specifically, the end parts of the product boxes 10 with through holes at both ends are respectively placed on two side-by-side and oppositely arranged synchronous belts, which facilitates the transportation of the product boxes 10 and the clamping operation of the clamping plates, improves the clamping efficiency of the product boxes 10, and can also meet the design requirements of automation here.

[0063] Embodiment III

[0064] Refer to Figure 7-9 As shown, on the basis of the technical solution of the above embodiment, for a film laminating machine for a lead frame, regarding the specific structural design of the cleaning mechanism, the lower rubber-coated roller 22 is installed on the fourth support plate group 25 and is driven after decelerating by the fourth motor 21. The fourth motor 21 is connected to a speed reducer, and the speed reducer is fixed on the side of the fourth support plate group 25 and is connected to the rotating shaft of the lower rubber-coated roller 22 through an output shaft. The lower rubber-coated roller 22 is the driving part, and the upper rubber-coated roller 23 is the driven part; the second conveying component 26 includes two side-by-side second synchronous belts for supporting electronic products, and a heating block 265 is arranged between the two second synchronous belts. After the cleaning operation is completed and the product needs to be conveyed forward, at this time, in order to facilitate the subsequent film laminating process operation, it is necessary to heat the electronic products during the conveying process.

[0065] As Figure 8 shown, the lower rubber-coated roller 22 is rotatably installed on the fourth support plate group 25. The shafts at both ends of the lower rubber-coated roller 22 are installed on the fourth support plate group 25 through bearings. A lifting movable plate 24 is slidably arranged on the fourth support plate group 25. Specifically, vertical guide rails are fixed inside the fourth support plate group 25, and sliding grooves matching the vertical guide rails are arranged on the lifting movable plate 24, so that the lifting movable plate 24 can slide in the vertical direction. A rotatable upper rubber-coated roller 23 is installed on the lifting movable plate 24. One end of the upper rubber-coated roller 23 is installed on the lifting movable plate 24 through a shaft and a bearing. In this way, the upper rubber-coated roller 23 approaches the lower rubber-coated roller 22 under its own gravity and can only rotate passively. Since both the lower rubber-coated roller 22 and the upper rubber-coated roller 23 are sleeved with cleaning components such as dust sticking tapes or dust-free cloths, the residual particles or dust on the electronic products can be cleaned cleanly, so that there can be a certain downward pressing force when the electronic products pass between the two, and the surface cleaning operation is cleaner.

[0066] As Figure 9As shown in the figure, the second synchronous belt is installed on the third support plate group 262. A heating block 265 is provided between the two third support plate groups 262. The heating block 265 is arranged along the conveying direction and is equipped with a supporting temperature control component, such as a thermocouple or a temperature control probe, etc., which will not be elaborated here. In addition, the height of the heating block 265 is lower than that of the electronic products on the upper conveyor belt of the second synchronous belt to avoid affecting the conveying. Third sensors 264 are respectively provided at both ends of the heating block 265 to feedback the temperature or position relationship of the front and rear ends of the electronic products during conveying. In addition, a third motor 261 is provided on the third support plate group 262. After the speed of the third motor 261 is reduced, it drives the second synchronous belt mechanism 263 to work. The structure of the second synchronous belt mechanism 263 is the same as that of the first synchronous belt mechanism 163 and can be designed with reference to the above content, which will not be elaborated here.

[0067] Embodiment 4

[0068] Refer to Figure 10-18 As shown in the figure, on the basis of the technical solution of the above embodiment, a film pasting machine for a lead frame. For the specific structural design of the film pasting device, the film pasting device is arranged on the workbench and includes a material pushing mechanism 3, a conveyor belt mechanism 7, a tape feeding and receiving mechanism 4, a roller mechanism 5 and a cutter mechanism 6 arranged in sequence, which are used to receive the electronic products after being cleaned and preheated at the previous station and perform film pasting operations. Among them, there are three layers in total for the original film 47 to tear off a non-sticky blue film, which is called the first film pasting 48. Since the electronic products have been preheated at the previous station, first push the electronic products conveyed to the push block 31 after preheating to the front end of the flat belt 74, and then synchronously heat the first film pasting 48 fed on the tape feeding and receiving mechanism 4 through the heating roller group and paste it on the electronic products. After heating with the heating roller, convey the electronic products to the cutter mechanism 6. There is an industrial camera 64CCD detection at the cutter to detect whether the film of the product is pasted well. After the detection shows that the film pasting is qualified OK, communicate to the rear end of the product and use the cutter to cut off the first film pasting 48, and transfer to the next station for operation. Specifically, tear off the first layer of the blue film on the electronic product after film pasting through the rubber-coated wheel. After the first layer of the film is torn off, push the electronic product into the product box on a buffer machine again and buffer for 15 minutes. After buffering for 15 minutes, then move the product to the exposure machine through the transfer mechanism for exposure. After exposure, move it to another buffer machine and buffer for 15 minutes; after buffering for 15 minutes, finally, the exposed electronic product tears off the second layer of the blue film on the electronic product through the film tearing device to obtain the final film pasted electronic product.

[0069] Combine Figure 12 and Figure 18It can be seen that for the specific structural design of the material feeding mechanism 3, a conveying assembly is provided between the pushing block 31 and the flat belt 74. The conveying assembly includes two relatively arranged first support seats 37 and a plurality of support rollers 36 installed on the first support seats 37. The relatively arranged paired support rollers 36 are used to support the electronic products and are pushed by the pushing block 31 to the heating roller group. In addition, the pushing block 31 is arranged on the pressure rod 32, the pressure rod 32 is fixed to the first lifting cylinder 33, the first lifting cylinder 33 is installed on the cylinder fixing plate 34 of the first electric cylinder, and the cylinder fixing plate 34 is fixed to the first nut seat of the first electric cylinder. Both the first electric cylinder and the first support seat 37 are arranged on the workbench. The first electric cylinder is a conventional component, which is a modular product integrating a servo motor and a lead screw, converting the rotational motion of the servo motor into a linear motion, and its specific structure will not be elaborated here.

[0070] As Figure 11-14 shown, for the specific structural design of the tape feeding and receiving mechanism 4, the reels of the unwinding reel 41 and the winding reel 42 are both arranged on the vertical plate 45 and are respectively driven after decelerating by the first motor 43 and the second motor 44. The rotating shafts of the reels are connected to the output shafts of the motors after decelerating by the speed reducers to provide rotational power. The speed reducer is a conventional component, and its structure will not be elaborated here. In addition, a plurality of horizontally arranged guiding rotating shafts 46 are installed on the vertical plate 45. The plurality of guiding rotating shafts 46 are distributed at different positions on the vertical plate 45 to change the conveying trajectories of the original film 47 during unwinding and when a layer of non-stick film is torn off, as well as the conveying trajectory of the first film. The vertical plate 45 is vertically fixed on the workbench, and an industrial camera 64 facing the pressing plate 72 is also installed on the vertical plate 45 to detect the quality of the film applied to the electronic products passing through the pressing plate 72 and communicate and feedback to the control component of the cutting mechanism 6 to cut the continuous first film application 48.

[0071] Combined with Figure 15 It can be seen that for the specific structural design of the roller mechanism 5, the heating roller group includes an upper heating roller 52 and a lower heating roller 51 arranged opposite to each other up and down. Its heating component is built-in and will not be elaborated here. The two ends of the rotating shaft of the upper heating roller 52 are respectively arranged on the frame plate 54 and are connected to two second lifting cylinders 55 to adjust the height of the upper heating roller 52 and the distance from the lower heating roller 51; the two ends of the rotating shaft of the lower heating roller 51 are respectively arranged on the frame plate 54 and are driven after decelerating by the third motor 53. The lower heating roller 51 can rotate, while the upper heating roller 52 can only rotate under the drive of an external force. In addition, the frame plate 54 is installed on the workbench and is divided into upper and lower parts. The frame plate 54 is provided with a first idler wheel 56 and a second idler wheel 57 driven by a motor after decelerating under the workbench to perform the operation of winding and unwinding the false tape 58, similar to the winding and unwinding operation of the tape feeding and receiving mechanism 4, and its structural design will not be described in detail here. An opening for the false tape 58 to pass through is provided on the workbench.

[0072] As Figure 16-17 shown, for the specific structural design of the cutting tool mechanism 6, the cutting tool is fixed on the slide cylinder 63 through the adjusting block 62 to realize the lifting and cutting action of the cutting tool. The slide cylinder 63 is installed on the moving plate 65, and the moving plate 65 is driven by a planar displacement component, that is, it can move in the X-axis and Y-axis directions on the horizontal plane. Specifically, the planar displacement component includes a second electric cylinder 66 and a third electric cylinder 67 whose linear motions are perpendicular to each other. The moving plate 65 is arranged on the second nut seat of the second electric cylinder 66. The second electric cylinder 66 is arranged on the third nut seat of the third electric cylinder 67. The third electric cylinder 67 is arranged on the workbench, and the two electric cylinders drive the corresponding nut seats to move linearly respectively.

[0073] As Figure 17-18 shown, a third lifting cylinder is connected below the pressing plate 72 to drive the pressing plate 72 to lift and press the electronic product. The pressing plate 72 is an open plate member, such as a frame structure in the shape of a Chinese character "Ri". Two flat belts 74 driven by reducing the speed through a fourth motor 75 and a fifth motor 76 respectively are arranged on both sides of the pressing plate 72. The involved speed reducer and belt structure are mature designs and will not be elaborated here. A waste suction pipe 77 is also arranged below the pressing plate 72, which can be externally connected to a Roots blower to suck the waste film cut by the cutting tool under negative pressure.

[0074] In the device of the present utility model, the assembly and cooperation relationships of the various components involved, various cylinders, sensors, blowers, motors or electric motors and their control software, etc. are prior arts or materials. Those skilled in the art can directly purchase or customize them from the market according to the required product models and specifications.

[0075] The electrical components mentioned in the text are all electrically connected to the external main controller and 220V mains or industrial electricity, and the main controller can be a conventional known device such as a computer that plays a control role.

[0076] The above are only the preferred specific embodiments of the present utility model. The well-known specific structures and characteristics and other common knowledge are not described in detail here. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A film laminating machine for lead frame, characterized in that: The invention comprises a loading mechanism which is sequentially arranged on a frame workbench, the loading mechanism comprising a first conveying assembly (16), a pushing assembly and a clamping assembly, the first conveying assembly (16) being provided with a liftable baffle (165), the clamping assembly controlling the horizontal movement and lifting movement of a clamped product box (10) so as to be suspended between the first conveying assembly (16) and the pushing assembly, and pushing the electronic product in the product box (10) onto the first conveying assembly (16) through the pushing assembly; A cleaning mechanism (2), the cleaning mechanism (2) comprising a rotating lower rubber-coated roller (22), a movable upper rubber-coated roller (23) being provided above the lower rubber-coated roller (22), a first conveying assembly (16) conveying the electronic product to complete a surface cleaning operation between the upper rubber-coated roller (23) and the lower rubber-coated roller (22) and then conveying the electronic product to a second conveying assembly (26), a heating block (265) being provided on the second conveying assembly (26); A material shifting mechanism (3), wherein the material shifting mechanism (3) comprises a push block (31), and the push block (31) can move in the transverse and longitudinal directions to push the electronic products conveyed on the second conveying assembly (26); A conveyor belt mechanism (7), the conveyor belt mechanism (7) comprising a plurality of flat belts (74) driven by a motor after the motor has slowed down, a push block (31) facing the front end of the flat belt (74) to push the electronic product onto the flat belt (74) for backward transportation, a plurality of pressing wheels (73) and a pressing plate (72) suspended above the flat belt (74), the pressing plate (72) being movably arranged above two adjacent flat belts (74); The adhesive tape delivery and receiving mechanism (4) comprises a feeding roll (41) and a receiving roll (42), wherein the original film (47) on the feeding roll (41) is fed and wound by the receiving roll (42) to tear off a layer of non-stick film to form a first film (48), and the first film (48) is transported forward to the rear end of the material dispensing mechanism (3) via a plurality of guide shafts (46); A roller mechanism (5), wherein the roller mechanism (5) comprises a heating roller group, the heating roller group is located at the rear end of the material feeding mechanism (3) and can be raised and lowered to adjust its own height and roller spacing, the first film (48) is heated by the heating roller group and then pressed onto the surface of the electronic product, and a retractable and transportable dummy tape (58) is also inserted between the heating roller groups; A cutting mechanism (6), wherein the cutting mechanism (6) comprises a blade (61) capable of being raised and lowered and horizontally displaced, and the blade (61) cuts the first film (48) on the electronic product pressed down by the pressing plate (72).

2. The film laminating machine for lead frame according to claim 1, characterized in that: The first conveying assembly (16) includes two first synchronous belts arranged opposite to each other, the first synchronous belts are installed on the second support plate group (162), and a liftable baffle (165) is provided between the two second support plate groups (162); the pushing assembly includes a pushing cylinder (11), the pushing cylinder (11) drives a pushing rod to reciprocate horizontally, and the height of the pushing rod is flush with the first synchronous belt; the clamping assembly includes a clamping cylinder (14), the clamping cylinder (14) clamps the product box (10) through a clamping plate, and the clamping cylinder (14) is fixed on the horizontal displacement assembly (13), and the horizontal displacement assembly (13) is arranged on the lifting assembly (12).

3. The film laminating machine for lead frame according to claim 2, characterized in that: The second support plate group (162) is provided with a second motor (161), and the second motor (161) drives the first synchronous belt mechanism (163) after deceleration. The first synchronous belt mechanism (163) includes a driving wheel and a driven wheel for installing the first synchronous belt and a tensioning adjustment wheel. The two tensioning adjustment wheels are coaxial and connected to the output shaft of the second motor (161) after deceleration. The baffle (165) is driven by a lifting cylinder assembly (166), and a second sensor (164) is suspended above the baffle (165). The pushing cylinder (11) is installed on the first support plate group (15), and the first support plate group (15) is provided with a first sensor. The clamping cylinder (14) includes two clamping plates facing each other up and down, the horizontal displacement assembly (13) is a horizontal cylinder, and the lifting assembly (12) includes a screw mechanism, and the screw of the screw mechanism is driven by the first motor after deceleration, and the screw is connected to a nut seat, and the horizontal cylinder is installed on the nut seat.

4. The film laminating machine for lead frame according to claim 1, characterized in that: The lower rubber-coated roller (22) is mounted on the fourth support plate group (25) and is driven after being decelerated by the fourth motor (21); the second conveying assembly (26) includes two second synchronous belts arranged side by side and supporting the electronic products, and a heating block (265) is provided between the two second synchronous belts.

5. The film laminating machine for lead frame according to claim 4, characterized in that: The fourth motor (21) is connected to a reducer, which is fixed to the side of the fourth support plate group (25) and connected to the rotating shaft of the lower rubber-coated roller (22) through an output shaft. The fourth support plate group (25) is provided with a vertical guide rail, and a lifting movable plate (24) is slidably provided on the vertical guide rail. The lifting movable plate (24) is connected to the rotating shaft of the upper rubber-coated roller (23); the second synchronous belt is installed on the third support plate group (262), and a heating block (265) is provided between the two third support plate groups (262). The height of the heating block (265) is lower than the electronic products conveyed on the second synchronous belt, and third sensors (264) are respectively provided at both ends of the heating block (265).

6. The film laminating machine for lead frame according to claim 1, characterized in that: A conveying assembly is provided between the push block (31) and the flat belt (74), and the conveying assembly includes two first supporting seats (37) arranged opposite to each other and a plurality of supporting rollers (36) mounted on the first supporting seats (37); the push block (31) is arranged on a pressure rod (32), the pressure rod (32) is fixed on a first lifting cylinder (33), the first lifting cylinder (33) is mounted on a cylinder fixing plate (34) of a first electric cylinder, and the first electric cylinder and the first supporting seat (37) are both arranged on a workbench.

7. The film laminating machine for lead frame according to claim 1, characterized in that: The material trays of the unwinding reel (41) and the receiving reel (42) are both arranged on the vertical plate (45) and are driven after being reduced in speed by the first motor (43) and the second motor (44) respectively; a plurality of horizontally arranged guide shafts (46) are installed on the vertical plate (45), the vertical plate (45) is vertically fixed on the workbench, and an industrial camera (64) facing the pressure plate (72) is also installed on the vertical plate (45).

8. The film laminating machine for lead frame according to claim 1, characterized in that: The heating roller assembly comprises an upper heating roller (52) and a lower heating roller (51) which are arranged opposite to each other in the upper and lower directions. The two ends of the rotating shaft of the upper heating roller (52) are respectively arranged on the frame plate (54) and are connected to two second lifting cylinders (55); the two ends of the rotating shaft of the lower heating roller (51) are respectively arranged on the frame plate (54) and are driven by a third motor (53) after being decelerated; the frame plate (54) is installed on a workbench and is divided into two upper and lower parts. The frame plate (54) is provided with a first stop wheel (56) and a second stop wheel (57) driven by a motor after being decelerated below the workbench to perform material retracting and releasing operations on the dummy tape (58).

9. The film laminating machine for lead frame according to claim 1, characterized in that: The cutter is fixed on the slide cylinder (63) through an adjustment block (62); the slide cylinder (63) is mounted on a movable plate (65); the movable plate (65) is driven by a plane displacement assembly; the plane displacement assembly comprises a second electric cylinder (66) and a third electric cylinder (67) whose linear motions are perpendicular to each other; the movable plate (65) is arranged on a second nut seat of the second electric cylinder (66); the second electric cylinder (66) is arranged on a third nut seat on the third electric cylinder (67); and the third electric cylinder (67) is arranged on a workbench.

10. A film laminating machine for lead frames according to any one of claims 6 to 9, characterized in that: The pressing plate (72) is connected to the third lifting cylinder below. The pressing plate (72) is an open plate. Two flat belts (74) are provided on both sides of the pressing plate (72) and are driven after being reduced in speed by the fourth motor (75) and the fifth motor (76). A waste suction pipe (77) is also provided below the pressing plate (72).

Images