Material film belt clamping block of feeder and feeder
By designing the U-shaped groove material tape block in the feeder, folding the adhesive edge of the material tape by wrinkling, the problem of sticking and stuck in the feeder membrane coil mechanism is solved, and the stability and life of the equipment are improved.
Patent Information
- Application Number
- CN202411791158.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-03-11
AI Technical Summary
During the production process of printed circuit boards, the film coiling mechanism of the feeder is stuck due to the adhesive glue of the film tape, which affects the operation and life of the equipment.
A feeder material film tape card block is designed, and the card block includes a U-shaped groove. The width of the U-shaped groove is smaller than the width of the material film tape, but the width difference is greater than or equal to the width of the one-sided adhesive edge of the material film tape. When the film tape passes through the U-shaped groove, it is squeezed by the side wall to form wrinkles, reducing the risk of adhesion on the sticky edges.
By folding the adhesive edges of the film tape, the problem of sticking and stuck during the feeder operation is significantly reduced, and the stability of the equipment and the life of the block are improved.
Smart Images
Figure CN119603884A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of chip placement machines for printed circuit production, and more specifically, to a feeder film tape card block and a feeder. Background Art
[0002] In the production process of printed circuit boards (PCBs), the surface mount system (SMT) is used to accurately place electronic components on PCB pads. This step requires the use of a feeder (Feeder) to feed the SMT. Feeders include tape feeders, label feeders, and other types.
[0003] When the tape feeder feeds the tape material, the film tape needs to be peeled off from the material through the film rolling mechanism. During this process, when the film rolling gear of the film rolling mechanism is transporting the film tape, the film tape is easily stuck to the film rolling gear due to the sticky glue on both sides of one side of the film tape, which may cause the film rolling mechanism to get stuck and the film rolling gear to have a shorter life.
[0004] Therefore, the problem of adhesion and jamming of the film rolling mechanism of the feeder during operation is an urgent problem to be solved. Summary of the invention
[0005] The present application provides a feeder film belt clamping block and a feeder, which can reduce the problem of adhesion and jamming occurring during the operation of the film rolling mechanism of the feeder.
[0006] In the first aspect, a feeder film tape clamp is provided, the clamp comprising a clamp body, the clamp body being used to connect the clamp to the feeder, the clamp body being provided with a U-shaped groove, the width of the U-shaped groove at the bottom of the groove being smaller than the width of the film tape, and the difference between the width of the U-shaped groove at the bottom of the groove and the width of the film tape being greater than or equal to the width of the sticky edge on one side of the film tape; when the feeder is in working condition, the film tape passes through the clamp from the U-shaped groove and is squeezed by the side wall of the U-shaped groove to form wrinkles.
[0007] In this way, wrinkles are generated by squeezing the film belt so that its sticky edge is folded, which can reduce the problem of the film belt sticking to the film winding gear and causing jamming during the operation of the feeder.
[0008] In combination with the first aspect, in some possible implementations, side wall rollers or side wall wheels are respectively provided on the two side walls of the U-shaped groove.
[0009] The roller or wheel can reduce the friction between the film belt and the U-shaped groove wall, reduce the resistance of the film belt to movement, reduce the problem that the film belt cannot be peeled off from the material due to insufficient tension, and can increase the life of the block.
[0010] In combination with the first aspect, in some possible implementations, the width of the U-shaped groove at the groove bottom is greater than the width of the U-shaped groove at the opening.
[0011] Through the above technical scheme, the efficiency of the card block in squeezing the material film belt and making it wrinkle can be improved, and the probability of the material film belt detaching from the U-shaped groove during the operation of the feeder can be reduced, thereby improving the stability of the card block folding operation.
[0012] In combination with the first aspect, in some possible implementations, the width of the U-shaped groove at the groove bottom is smaller than the width of the U-shaped groove at the opening.
[0013] In this way, the stability of the folded edge of the card block can be improved.
[0014] In combination with the first aspect, in some possible implementations, a groove bottom roller or a groove bottom rolling wheel is provided at the groove bottom of the U-shaped groove.
[0015] In this way, the friction between the bottom of the U-shaped groove and the film belt can be reduced, and the resistance to the operation of the film belt can be reduced, thereby reducing the problem of the film belt being unable to be peeled off from the material due to insufficient tension of the film belt, and can increase the life of the block.
[0016] In combination with the first aspect, in some possible implementations, the width of the U-shaped groove at the bottom of the groove is one of the following sizes: 8 mm, 10 mm, 16 mm, 20 mm, 28 mm, 36 mm.
[0017] The above dimensions can correspond to roll feeders with different film widths, taking into account the feasibility and implementation efficiency of the technical solution.
[0018] In combination with the first aspect, in some possible implementations, the block around the U-shaped groove is made of iron material.
[0019] In this way, the life of the card block can be increased.
[0020] In the second aspect, a feeder is provided, comprising a feeding mechanism, a film rolling mechanism and a feeder film tape clamp block according to any one of the first aspects, wherein the clamp block is arranged between the film tape peeling point of the feeding mechanism and the entrance of the film rolling mechanism, and when the feeder is working, the film tape passes through the U-shaped groove of the clamp block.
[0021] In combination with the second aspect, in some possible implementations, the card block is fixed to the feeder by any one or more of the following methods: clamping, pressing, mechanical connection, and integral molding.
[0022] A variety of methods can be used to fix the card block on the feeder, which can reduce the probability of the card block being detached during the operation of the feeder.
[0023] In combination with the second aspect, in some possible implementations, when the feeder is working, the clamping block pushes the material film upward.
[0024] Through the above technical solution, the wrinkles on the film belt are compressed to a certain extent, which can reduce the probability of the wrinkles on the sticky edge automatically opening due to lack of adhesion, and reduce the probability of the film belt sticking to the film winding gear after entering the film winding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.
[0026] Figure 1 It is a schematic diagram of the structure and working principle of a feeder in the related art;
[0027] Figure 2 is a schematic structural diagram of a film tape after peeling of a roll-to-roll tape;
[0028] Figure 3 It is a schematic three-dimensional diagram of a film belt clamping block of a feeder provided in an embodiment of the present application;
[0029] Figure 4 It is a schematic three-dimensional diagram of a film belt clamping block of a feeder provided in an embodiment of the present application;
[0030] Figure 5 It is a schematic three-dimensional diagram of a film belt clamping block of a feeder provided in an embodiment of the present application;
[0031] Figure 6 It is a schematic three-dimensional diagram of a film belt clamping block of a feeder provided in an embodiment of the present application;
[0032] Figure 7 It is a schematic three-dimensional diagram of a film belt clamping block of a feeder provided in an embodiment of the present application;
[0033] Figure 8 It is a schematic three-dimensional diagram of an example of the combined application of multiple solutions provided in the embodiments of the present application;
[0034] Fig. 9 It is a schematic three-dimensional diagram of the assembly of a film belt clamping block of a feeder provided in an embodiment of the present application;
[0035] Fig.10 It is a schematic three-dimensional diagram of a film belt clamping block of a feeder provided in an embodiment of the present application. DETAILED DESCRIPTION
[0036] The technical solution in this application will be described below in conjunction with the accompanying drawings.
[0037] It should be understood that the methods, situations, categories and divisions of the embodiments in the present application are only for the convenience of description and should not constitute special limitations. The features of various methods, categories, situations and embodiments can be combined without contradiction.
[0038] It should also be understood that the terms "upper", "lower", etc., indicating directions or positional relationships, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the "same direction" involved in the present application does not mean the same in a strict sense, but is within the tolerance range.
[0039] The PCB manufacturing process includes patch operations. Patch is to accurately place electronic components on PCB pads for the next step of soldering. The electronic components of the patch are fed by a feeder through a material tape, which consists of a material and a film tape covering the material. The types of feeders include reel feeders. When the reel feeder feeds the material, the film rolling mechanism continuously peels the film tape from the material. The two edges of the film tape covering one side of the material have adhesive. When the film rolling mechanism applies tension to the film tape through the film rolling action to peel it off the material, the adhesive on the film tape will make it adhere to the film rolling gear of the film rolling mechanism, which may cause the film rolling mechanism to get stuck.
[0040] In view of the above problems, the embodiments of the present application provide a film tape clamping block of a feeder and a feeder, which can reduce the problem of a film rolling mechanism getting stuck due to adhesion of the film tape.
[0041] The following comparison Figure 1 The working principle of the feeder in the related technology is introduced.
[0042] like Figure 1 As shown, the feeder 100 peels off the material film tape 112 on the material tape 110 and feeds the material 111 to the front end of the feeder 100. The material film tape 112 passes through the pulley 120 and enters the film rolling mechanism 130 at the rear end of the feeder 100. The film rolling gear 131 in the film rolling mechanism 130 winds up the material film tape 112 and applies tension to the material film tape 112, so that the material film tape 112 is continuously peeled off from the material 111. Figure 1 The arrows in the figure indicate the movement directions of the material 111 and the material film belt 112.
[0043] Figure 2 Schematic diagram of the structure of the film tape after the tape-to-reel tape is peeled off. Figure 2As shown, both sides of one side of the film strip are adhesive edges 200, and the adhesive edges 200 have adhesive and are sticky. Figure 1 When the film rolling mechanism 130 of the feeder is shown, the adhesive edge 200 may adhere to the film rolling gear 131, which may easily cause the film rolling mechanism 130 to be stuck by the film tape.
[0044] The following is an introduction to the film tape clamp block and the feeder of the feeder provided in the embodiments of the present application.
[0045] Figure 3 This is a schematic diagram of the structure of a film strip clamping block 300 provided in an embodiment of the present application. Figure 3 As shown, the block includes a U-shaped groove 310 and a block body 320. The U-shaped groove 310 includes a side wall 311, a side wall 312 and a groove bottom 313. The block body 320 is used to connect the block 300 to the feeder. The width W of the U-shaped groove at the groove bottom is smaller than the width of the film strip, and the difference between the two widths is greater than or equal to the width of the single-sided adhesive edge.
[0046] The card block includes a card block body, which is provided with a U-shaped groove. The width of the U-shaped groove is smaller than the width of the film strip, and the difference between the width of the U-shaped groove and the width of the film strip is greater than or equal to the width of the adhesive edge on one side of the film strip. The card block is arranged on the path through which the film strip passes. When the feeder is in working state, the film strip passes through the card block from the U-shaped groove, and is squeezed by the side wall of the U-shaped groove to form wrinkles.
[0047] When the feeder feeds the material, the film rolling gear of the film rolling mechanism rotates to roll up and drag the film tape, which generates tension on the film tape and is continuously separated from the material. The card block is arranged between the film tape and the material stripping point and in front of the film rolling mechanism entrance, and the film tape is located in the U-shaped groove of the card block. In this way, when the film tape passes through the card block, wrinkles will be generated due to being squeezed by the two side walls of the U-shaped groove, and the wrinkles will cause the sticky edge of the film tape to adhere to itself or to other non-sticky parts of the film tape. When the wrinkled film tape enters the film rolling mechanism, the film tape will be squeezed by the film rolling gear, so that the sticky edge of the film tape is folded in the formed wrinkles and pressed. The wrinkles that may be generated in other non-sticky areas of the film tape will gradually stretch out after passing through the card block. The card block body of the card block is fixed on the feeder, so that the card block will not fall off the feeder when the feeder is working.
[0048] Through the above implementation method, the sticky edge of the film belt can be folded by wrinkling, thereby reducing the problem of the film belt sticking to the film rolling gear and causing jamming during the operation of the feeder, and the structure is simple and the cost is low.
[0049] Optionally, in some possible implementations, the block around the U-shaped groove is made of iron material, for example, carbon steel, manganese steel, etc.
[0050] Through the above implementation, the wear resistance of the portion around the U-shaped groove of the clamping block can be improved, and the service life of the clamping block can be increased.
[0051] Optionally, in some possible implementations, side wall pulleys or side wall rollers are respectively provided on the two side walls of the U-shaped groove. Figure 4 As shown, rollers 410 and 420 are respectively disposed on the two side walls of the U-shaped groove, and the rotation axis directions of the two rollers are respectively perpendicular to the direction in which the film strip passes. When the film strip passes through the block from the U-shaped groove, the film strip may drive the rollers 410 and 420 to rotate, and at the same time, the rollers 410 and 420 replace the side walls of the U-shaped groove to squeeze the film strip to form wrinkles.
[0052] Through the above implementation method, the friction between the film belt and the U-shaped groove wall can be reduced, and the resistance of the film belt passing through can be reduced, thereby reducing the problem of the film belt being unable to be peeled off from the material due to insufficient tension of the film belt, and the life of the block can be increased.
[0053] Optionally, in some possible implementations, the sidewalls of the U-shaped groove have a certain shape relationship and / or size relationship with the groove bottom. For example, a certain angle may be formed between the sidewalls of the U-shaped groove. For example, the width of the U-shaped groove at the opening and at the groove bottom may be different.
[0054] For example, in some possible implementations, the width of the U-shaped groove may be narrow at the top and wide at the bottom. Figure 5 As shown, the width W of the U-shaped groove at the groove bottom 520 is 520 Greater than the width W at the slot opening 510 510 Among them, the width W of the U-shaped groove at the bottom of the groove 520 Smaller than the width of the film tape, and the difference between the two widths is greater than or equal to the width of the single-sided adhesive edge.
[0055] Optionally, in the above implementation, the shape of the U-shaped groove may be a trapezoid.
[0056] Through the above implementation method, the efficiency of extruding the film strip and making it wrinkle can be improved, and the probability of the film strip detaching from the U-shaped groove during the operation of the feeder can be reduced, thereby improving the stability of the folding edge of the card block.
[0057] For another example, in some possible implementations, the width of the U-shaped groove may be wider at the top and narrower at the bottom. Figure 6 As shown, the width W of the U-shaped groove at the groove bottom 620 is 620 Smaller than the width W at the slot opening 610 610Among them, the width W of the U-shaped groove at the bottom of the groove 620 Smaller than the width of the film tape, and the difference between the two widths is greater than or equal to the width of the single-sided adhesive edge of the film tape.
[0058] Optionally, in the above implementation, the shape of the U-shaped groove may be an inverted trapezoid.
[0059] Through the above implementation, when the film strip is separated from the U-shaped groove during the operation of the feeder, the film strip can be guided to fall back into the U-shaped groove because the U-shaped groove has the structural characteristics of being wide at the top and narrow at the bottom. In this way, the stability of the folding edge of the card block can be improved.
[0060] Optionally, in some possible implementations, a pulley or roller is provided at the bottom of the U-shaped groove. Figure 7 As shown, the bottom of the U-shaped groove has a roller 710, and the rotation axis direction of the roller is perpendicular to the direction in which the film strip passes. When the film strip passes through the block from the U-shaped groove, the film strip may drive the roller 710 to rotate.
[0061] Through the above implementation method, the friction between the bottom of the U-shaped groove and the film belt can be reduced, and the resistance to the operation of the film belt can be reduced, thereby reducing the problem of the film belt being unable to be peeled off from the material due to insufficient tension of the film belt, and the life of the block can be increased.
[0062] Optionally, in some possible implementations, the width of the U-shaped groove of the card block or the width of the groove bottom is one of the following sizes: 8 mm, 10 mm, 16 mm, 20 mm, 28 mm, 36 mm.
[0063] Through the above implementation, different widths can correspond to different types of tape feeders, for example: 8mm and 10mm can be applicable to Panasonic Tape Feeder (12mm, 16mm), 16mm and 20mm can be applicable to Panasonic Tape Feeder (24mm, 32mm), and 28mm and 36mm can be applicable to Panasonic Tape Feeder (44mm, 56mm).
[0064] It should be understood that the technical solutions in the above embodiments and implementations can be combined with each other without conflict. For example, the materials, structures, dimensions and other features in the above technical solutions can be combined with each other. Figure 8 As shown, a clamping block with a trapezoidal U-shaped groove can have rollers at the bottom of the groove, and the part of the U-shaped groove at the groove wall and the rollers at the groove bottom can be made of iron materials respectively.
[0065] Optionally, in some possible implementations, the block body can be fixed on the feeder by at least one of the following methods: clamping, pressing, mechanical connection, and integral molding.
[0066] For example, in the above implementation, the card block body can be fixed to the feeder only by a mechanical connection method. For example, the card block body can be fixed to the feeder by a mounting screw on the feeder. Fig. 9 As shown, the main body of the block 920 is provided with two screw holes, and the diameter and position of the screw holes are the same as the screw holes on the base 940 of the Panasonic feeder. The screw 910 passes through the main body of the block 920 and the screw holes on the base 940, and fixes the film roll mechanism 930 of the feeder to the feeder. In this way, the screw 910 can fix the block 920 to the film roll mechanism 930 and the base 940 of the feeder. The base 940 is integrated with the feeding mechanism of the feeder.
[0067] Through the above implementation method, the card block can be conveniently installed on the feeder, and the connection is stable and the fixation is reliable, which can reduce the probability of the card block detaching during the operation of the feeder.
[0068] For example, in the above implementation, the card block body can be fixed on the feeder by an integral molding method. For example, the film rolling mechanism of the feeder and the card block can be an integral structure.
[0069] Through the above implementation, the operation of installing the card block is eliminated.
[0070] For example, in the above implementation, the block body can be fixed on the feeder by clamping and pressing, and fixed by screws and screw holes. The block can be pressed on the wall of the feeder close to the film rolling mechanism by a pressing block or a clamp, and fixed on the feeder with screws. When the feeder is running, the friction between the film belt and the block will further press the block.
[0071] Through the above implementation, the card block can be conveniently and firmly fixed on the feeder, which can reduce the probability of the card block falling off during the operation of the feeder.
[0072] Optionally, in some possible implementations, when the feeder is working, the bottom of the U-shaped groove presses the film strip upwards to lift the film strip upwards. Fig.10 As shown, the position of the bottom of the block groove is higher than the position of the film strip before the block is installed, so that the film strip is pushed upward to achieve the squeezing of the film strip by the groove bottom.
[0073] When the film strip passes through the block, it is squeezed by the side wall and the bottom of the groove at the same time, and the wrinkles formed will be compressed to a certain extent under the pressure of the bottom of the groove. In this way, the probability of the wrinkles automatically opening due to the adhesive edge not being tightly adhered can be reduced, which can facilitate the subsequent film rolling gear to further compress the film strip.
[0074] Through the above implementation, the probability of the wrinkles on the sticky edge automatically opening can be reduced, and the probability of the film rolling mechanism getting stuck due to the sticky edge of the film tape sticking to the film rolling gear during subsequent operation can be reduced.
[0075] Another embodiment of the present application provides a feeder, comprising a feeding mechanism, a film rolling mechanism and a card block. The card block is a card block of any one of the above embodiments and implementations or a card block combining the technical solutions of any several of them, and is arranged between the film strip peeling position of the feeder and the entrance of the film rolling mechanism. When the feeder is in working state, the film strip passes through the U-shaped groove of the card block.
[0076] Optionally, in some possible implementations, the card block is fixed to the feeder by at least one or more of the following methods: clamping, pressing, mechanical connection, and integral molding.
[0077] Optionally, in some possible implementations, when the feeder is working, the clamping block pushes the film belt upward.
[0078] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the clamping block and the feeder described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.
[0079] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components or steps therein may be replaced with equivalents or equivalent methods without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0080] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A film strip clamp for a feeder, characterized in that: The card block includes a card block body, the card block body is used to connect the card block to the feeder, the card block body is provided with a U-shaped groove, the width of the U-shaped groove at the bottom of the groove is smaller than the width of the film strip, and the difference between the width of the U-shaped groove at the bottom of the groove and the width of the film strip is greater than or equal to the width of the adhesive edge on one side of the film strip; When the feeder is in working state, the film strip passes through the clamping block from the U-shaped groove and is squeezed by the side wall of the U-shaped groove to form wrinkles.
2. The card block according to claim 1, characterized in that: Side wall rollers or side wall wheels are respectively arranged on the two side walls of the U-shaped groove.
3. The card block according to claim 1 or 2, characterized in that: The width of the U-shaped groove at the groove bottom is greater than the width of the U-shaped groove at the opening.
4. The card block according to claim 1 or 2, characterized in that: The width of the U-shaped groove at the groove bottom is smaller than the width of the U-shaped groove at the opening.
5. The card block according to claim 1 or 2, characterized in that: The bottom of the U-shaped groove is provided with a groove bottom roller or a groove bottom rolling wheel.
6. The card block according to claim 1 or 2, characterized in that: The width of the U-shaped groove at the bottom of the groove is one of the following sizes: 8mm, 10mm, 16mm, 20mm, 28mm, 36mm.
7. The card block according to claim 1 or 2, characterized in that: The clamping block is made of iron material around the U-shaped groove.
8. A feeder, characterized in that: It includes a feeding mechanism, a film rolling mechanism and a feeder film tape clamp as described in any one of claims 1 to 7, wherein the clamp is arranged between the film tape peeling point of the feeding mechanism and the entrance of the film rolling mechanism, and when the feeder is in working state, the film tape passes through the U-shaped groove of the clamp.
9. The feeder according to claim 8, characterized in that: The clamping block is fixed to the feeder by any one or more of the following methods: clamping, pressing, mechanical connection, and integral molding.
10. The feeder according to claim 8, characterized in that: When the feeder is working, the clamping block pushes the material film belt upward.