A press fixture for FPC light bar

Abstract

The application discloses a pressing jig for FPC light bar, which comprises a lower pressing plate provided with a first positioning groove, and an elastic bag outside a reinforcing block is arranged at the lower part of the first positioning groove, a heating end of a heating piece is inserted into evaporative liquid in the elastic bag, a push plate is fixedly connected outside the elastic bag, a plurality of sleeve plates are sequentially arranged in an L-shaped structure and are connected through fixed connecting rods, elastic pressing blocks are connected to the end of the sleeve plates, sliding push rods are connected to the elastic pressing blocks and are slidably inserted into the sleeve plates, and cutting tools for cutting off the fixed connecting rods are slidably extended into the sliding push rods, the elastic bag for heat transfer is arranged in the convex first positioning groove, the reinforcing block is positioned, and the heat-curing glue is concentratedly and specifically heated, the outermost sleeve plate is caused to fall off and lock the heat-curing glue through the cooperation of the elastic bag and the plurality of sleeve plates, and the problem that the FPC plate is difficult to take off due to overflow of the glue is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flexible circuit board, in particular to a pressing jig for FPC light bar. BACKGROUND

[0002] FPC is a kind of circuit board product widely used, with light, thin, free bending, winding, low voltage, low consumption, low power and other characteristics, but FPC line is very thin, its rigidity and loadability are still insufficient when it is just produced, and its mechanical strength is small, so it needs to be reinforced, that is, the flexible circuit board is attached to the reinforcing film, specifically the reinforcing film with adhesion is aligned with the reinforcing area of FPC line to reinforce and attach, at this time the reinforcing film and FPC line are only in contact by adhesion, and need to be further pressed together by pressing tool. Before pressing, the reinforced FPC line is placed flat on the jig plate at the pressing position, and the product is attached to the jig plate by two-point positioning method, and after positioning, the product is pressed by pressing tool, and finally the product is taken out from the jig plate. But this FPC line attached to the jig plate by sticking method is prone to deviation, the positioning is not accurate enough, the positioning process needs to be careful and careful, and the whole product taking and placing process is relatively complicated and the work efficiency is low.

[0003] In the prior art, a jig for preventing FPC reinforcing plate pressing deviation is disclosed in CN211019484U, the bottom plate is provided with a positioning structure; the first elastic layer is arranged on the upper end surface of the bottom plate and is adapted to the shape of the bottom plate, and is also provided with a first positioning hole matched with the positioning structure; the raised partition plate is provided with an upper and lower through avoiding slot, the avoiding slot is arranged corresponding to the reinforcing plate and the elements on the FPC to be pressed, and the raised partition plate is also provided with a second positioning hole matched with the positioning structure for positioning, and the raised partition plate is located above the first elastic layer; the second elastic layer is arranged on the upper end surface of the raised partition plate, and is also provided with a third positioning hole matched with the positioning structure for positioning. The FPC with the reinforcing plate is attached to the jig and clamped between the raised partition plate and the first elastic layer for vacuum pressing, the avoiding slot of the raised partition plate is arranged to make it fall flat on the FPC, thereby playing a role in flattening the surface of the FPC, making the pressing more stable and avoiding deviation during pressing.

[0004] But the prior art still has great defects, such as: the reinforcing plate and the FPC plate are fixed by glue, but the glue will overflow and adhere between the reinforcing plate, the FPC plate and the inner wall of the avoiding groove in the pressing process, causing the problem that the FPC plate is difficult to remove, in addition, for the selected glue, the thermosetting glue with stronger bonding force gradually replaces the pressure sensitive adhesive, at present, the heating mode of the thermosetting glue between the reinforcing plate and the FPC plate is to place the FPC plate as a whole on the heating piece for heating, but the FPC plate is not heated in all parts because the thermosetting glue needs to be melted, therefore, the heating mode of the FPC plate as a whole has the defects of heating dispersion and waste of heat energy. SUMMARY

[0005] The purpose of the present application is to provide a pressing jig for FPC light bar to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] A pressing jig for FPC light bar, comprising a clamping mechanism for clamping and placing a plate, and a linear drive motor for driving a lower pressing plate to press downward on the placing plate, and a reinforcing block and an FPC plate are placed above the placing plate and are connected by thermosetting glue, the lower part of the lower pressing plate is provided with a convex first positioning groove, and the convex part of the first positioning groove is aligned with and fitted into the reinforcing block, the placing plate is fixedly provided with a positioning rod extending upward and sliding through the FPC plate, and the lower pressing plate is provided with a second positioning groove for sliding insertion of the positioning rod, the upper end of the second positioning groove is fixedly provided with a touch switch electrically connected to a heating power supply and a heating piece through a lead wire, and the positioning rod extrudes the touch switch to make the heating piece heat;

[0008] The lower part of the first positioning groove is provided with an elastic bag located outside the reinforcing block and fixed at the upper part, the heating end of the heating piece extends into the evaporation liquid in the elastic bag, and the elastic bag is fixedly connected with an L-shaped push plate, the vertical plate of the push plate is attached to the side wall of the elastic bag close to the reinforcing block, and the horizontal plate of the push plate is attached to the lower end of the elastic bag, a plurality of L-shaped sleeve plates are arranged along the direction close to the reinforcing block outside the push plate, and the push plate and the plurality of sleeve plates are sequentially and abuttingly arranged according to their L-shaped structure;

[0009] The pushing plate and the outer sleeve plate adjacent thereto are fixedly connected through the fixed connecting rod, both ends of the outer sleeve plate extend along the direction close to the reinforcing block and are adjacent to the outer sleeve plate, and the elastic pressing block is fixedly connected to both ends of the outer sleeve plate, the elastic pressing block on the vertical plate of the outer sleeve plate extends to the reinforcing block, the elastic pressing block on the horizontal plate of the outer sleeve plate extends to the FPC plate, the natural length of the elastic pressing block is less than the sum of the interval length between the adjacent outer sleeve plates and the thickness of the outer sleeve plate, the elastic pressing block is fixedly connected with the sliding push rod which is slidably inserted into the outer sleeve plate, and the outer sleeve plate is provided with the through insertion slot through which the sliding push rod passes, the sliding push rod is slidably provided with the cutting tool which abuts against the inner wall of the through insertion slot, and the cutting tool is connected with the elastic push block which pushes the cutting tool to extend out of the sliding push rod, and the fixed connecting rod is close to the through insertion slot and is broken by the cutting of the cutting tool extending out of the through insertion slot.

[0010] Preferably, the linear drive motor is electrically connected with a starting switch and a timing device.

[0011] Preferably, the clamping mechanism is composed of not less than one set of adjustable clamping pieces, and the adjustable clamping piece includes two oppositely arranged clamping plates and an electric cylinder for driving the clamping plate to slide.

[0012] Preferably, the lower end of the positioning rod is fixedly connected with a positioning rod connecting plate, and the positioning rod connecting plate is embedded in the bottom of the placement plate through the fixing bolt.

[0013] Preferably, the end of the elastic pressing block away from the outer sleeve plate is fixedly embedded with an embedded pressing plate, and the sliding push rod is fixedly connected to the embedded pressing plate.

[0014] Preferably, the sliding push rod is provided with the tool slot which is open in the side wall thereof, the sliding push plate is slidably attached to the inner wall of the tool slot, the end of the cutting tool extending into the tool slot is fixedly connected to the sliding push plate, and the elastic push block is fixedly connected between the inner wall of the tool slot and the sliding push plate.

[0015] Preferably, the limiting block is fixedly connected to the guide rod which slidably passes through the sliding push plate.

[0016] Preferably, the limiting block is fixedly connected to the guide rod which slidably passes through the sliding push plate.

[0017] Preferably, the tool slot penetrates through the side wall of the sliding push rod, the sliding push plate is two and oppositely arranged, the cutting tool is fixedly connected to the end of each of the two sliding push plates away from each other, and the fixed connecting rod close to the through insertion slot is two and cooperates with the two cutting tools to cut off, the elastic push block is fixedly connected between the two sliding push plates, the limiting block is fixedly connected to both ends of the tool slot, and the guide rod is fixedly connected between the limiting blocks at both ends of the tool slot and slidably passes through the two sliding push plates.

[0018] Preferably, the elastic bag and the first positioning groove are fixedly connected through the fixing cylinder, the heating element passes through the fixing cylinder and extends into the elastic bag, and the elastic bag and the push plate are fixedly connected through the L-shaped fixing connecting block.

[0019] Compared with the prior art, the application has the following beneficial effects:

[0020] The FPC lamp strip pressing jig of the application realizes concentrated and targeted heating of the hot glue while positioning the reinforcing block by arranging the heat-conducting elastic bag in the convex first positioning groove, reduces the problem of unnecessary heat loss caused by dispersed heating, and makes the outermost outer sleeve plate fall off and lock the hot glue by the cooperation of the elastic bag and the plurality of outer sleeve plates, thereby avoiding the problem of glue overflow and adhesion between the reinforcing plate, the FPC plate and the inner wall of the avoiding groove during the pressing process, and causing the FPC plate difficult to be removed. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the application;

[0022] Figure 2 It is a schematic diagram of the lower pressing plate away from the reinforcing block in the application;

[0023] Figure 3 It is a schematic diagram of the lower pressing plate close to the reinforcing block in the application;

[0024] Figure 4 It is Figure 3 It is an enlarged schematic diagram of the internal structure of the first positioning groove in the application;

[0025] Figure 5 It is Figure 4 It is a schematic diagram of the connection between the push plate and the outer sleeve plate in the application;

[0026] Figure 6 It is Figure 5 It is an enlarged schematic diagram of the end structure of the outer sleeve plate in the application;

[0027] Figure 7 It is a schematic diagram of the outer sleeve plate blocking the hot glue in the application;

[0028] Figure 8 It is Figure 7 It is a schematic diagram of the connection between the push plate and the outer sleeve plate in the application;

[0029] Figure 9 It is Figure 8 It is an enlarged schematic diagram of the cutting tool cutting off the fixing connecting rod in the application;

[0030] Figure 10 It is Figure 9 It is an enlarged schematic diagram of the cutting tool and its connecting mechanism in the application.

[0031] In the figure: 1 clamping mechanism, 2 linear drive motor, 3 placing plate, 4 lower pressing plate, 41 first positioning groove, 42 second positioning groove, 5 FPC board, 6 reinforcing block, 7 positioning rod, 8 touch pressure switch, 9 wire, 10 heating power supply, 11 heating element, 12 elastic bag, 13 push plate, 14 outer sleeve plate, 141 through slot, 15 fixed connecting rod, 16 elastic pressing block, 17 sliding push rod, 171 cutter groove, 18 cutting tool, 19 elastic push block, 20 start switch, 21 timing device, 22 positioning rod connecting plate, 23 fixed bolt, 24 inlaid pressing plate, 25 sliding push plate, 26 limit block, 27 guide rod, 28 fixed connecting block, 29 LED lamp cover. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Please refer to Figures 1-10 The present application provides a technical solution:

[0034] Embodiment one:

[0035] A kind of FPC lamp bar press-fit jig, including clamping mechanism 1 of clamping placing plate 3, and linear drive motor 2 of driving lower pressing plate 4 to press down placing plate 3, wherein clamping mechanism is made of not less than a group of adjustable clamping piece, adjustable clamping piece includes two opposite sliding clamping plates, and clamping electric cylinder for driving clamping plate sliding, by clamping electric cylinder driving clamping plate sliding, so that clamping plate is fixed to placing plate 3, and by adjusting the telescopic distance of different clamping electric cylinder, the fixed position of placing plate 3 is adjusted, to facilitate the accurate press of lower pressing plate 4 and placing plate 3, linear drive motor 2 is located above lower pressing plate 4, by the telescopic movement of the output end of linear drive motor 2, so that lower pressing plate 4 is close to placing plate 3 downwards or away from placing plate 3 upwards, wherein linear drive motor 2 is electrically connected with start switch 20 and timing device 21, start switch 20 is used to control the output end of linear drive motor 2 to move upwards or downwards, and timing device 21 is used to control the time length that lower pressing plate 4 presses placing plate 3 downwards;

[0036] The reinforcing block 6 and the FPC plate 5 are arranged above the placement plate 3 and are adhered by a heat-resistant adhesive, the heat-resistant adhesive is selected as a low-temperature heat-resistant adhesive that is cured and adhered at 60-80 degrees Celsius, for example, a single-component modified epoxy resin adhesive is selected, the lower portion of the lower pressing plate 4 is provided with a convex first positioning groove 41, the convex portion of the first positioning groove 41 is aligned with and fitted with the reinforcing block 6, when the reinforcing block 6 and the FPC plate 5 are pressed, the lower pressing plate 4 slides downward and the upper end of the reinforcing block 6 is inserted into the convex portion of the first positioning groove 41, the reinforcing block 6 is fixed by the insertion of the convex portion of the first positioning groove 41 and the reinforcing block 6, which avoids the problem of relative displacement of the reinforcing block 6 and the FPC plate 5 during pressing, the placement plate 3 is fixedly provided with a positioning rod 7 that extends upward and slides through the FPC plate 5, specifically, the lower end of the positioning rod 7 is fixedly connected with a positioning rod connecting plate 22, and the positioning rod connecting plate 22 is embedded in the bottom of the placement plate 3 through a fixing bolt 23, the positioning rod 7 is detachably connected to the placement plate 3 through the cooperation of the positioning rod connecting plate 22 and the fixing bolt 23, which facilitates the subsequent removal of the positioning rod 7, the lower pressing plate 4 is provided with a second positioning groove 42 for the sliding insertion of the positioning rod 7, the cooperation of the positioning rod 7 and the second positioning groove 42 limits the relative position of the placement plate 3, the FPC plate 5 and the lower pressing plate 4, so that the FPC plate remains fixed during pressing with the reinforcing block 6, further avoiding the problem of relative displacement of the reinforcing block 6 and the FPC plate 5 during pressing, after the reinforcing block 6 and the FPC plate 5 are pressed and fixed, the LED lamp cover 29 is placed on the clamping mechanism, and the LED lamp cover 29 and the FPC plate 5 are pressed and fixed;

[0037] The upper end of the second positioning groove 42 is fixedly provided with a touch switch 8 that is electrically connected with a heating power supply 10 and a heating element 11 through a wire 9, and the positioning rod 7 presses the touch switch 8 to make the heating element 11 heat up, the touch switch 8 is selected as an SH surface-mounted switch, the touch switch 8 is in an open state when it is not pressed by external force, and the touch switch 8 is switched to a closed state when it is pressed by external force, that is, when the lower pressing plate 4 does not press the placement plate 3 downward, the touch switch 8 is away from the positioning rod 7 and remains in an open state, so that the heating element 11 does not work, avoiding the problem of waste of electric energy caused by the heating element 11 working too early, when the lower pressing plate 4 presses the placement plate 3 downward, the positioning rod 7 extends into the second positioning groove 42 and presses the touch switch 8, so that the touch switch 8 is closed and the heating element 11 works, the heating element 11 is a thermocouple or other electric heating element that works by being electrified, the lower portion of the first positioning groove 41 is provided with a plurality of elastic capsules 12 that are located at different outer sides of the reinforcing block 6 and are fixed at the upper portion, and the heating end of the heating element 11 extends into the evaporation liquid in the elastic capsule 12, specifically, the elastic capsule 12 and the inner top wall of the first positioning groove 41 are fixedly connected through a fixed cylinder, and the heating end of the heating element 11 passes through the fixed cylinder and extends into the evaporation liquid in the elastic capsule 12, the evaporation liquid can be selected from low-boiling-point liquids such as n-hexane, methanol and ethyl acetate that can be easily vaporized;

[0038] The elastic bag 12 is fixedly connected with an L-shaped push plate 13, specifically, the elastic bag 12 and the push plate 13 are fixedly connected through an L-shaped fixed connecting block 28, the vertical plate of the push plate 13 is attached to the side wall of the elastic bag 12 close to the reinforcing block 6, and the horizontal plate of the push plate 13 is attached to the lower end of the elastic bag 12, a plurality of L-shaped outer sleeve plates 14 are arranged on the push plate 13 along the direction close to the reinforcing block 6, and the push plate 13 and the plurality of outer sleeve plates 14 are sequentially and abuttingly arranged according to the L-shaped structure, and the push plate 13 and the outer sleeve plates 14 adjacent thereto and the outer sleeve plates 14 adjacent to each other are fixedly connected through fixed connecting rods 15, the two ends of each outer sleeve plate 14 extend along the direction close to the reinforcing block 6 and are adjacent to the outer sleeve plate 14, and the two ends of each outer sleeve plate 14 are fixedly connected with elastic pressing blocks 16, and the elastic pressing blocks 16 on the vertical plate of each outer sleeve plate 14 extend towards the reinforcing block 6, and the elastic pressing blocks 16 on the horizontal plate of each outer sleeve plate 14 extend towards the FPC plate 5, when the heating element 11 is not powered on, the evaporated liquid in the elastic bag 12 remains in a liquid state, the elastic bag 12 remains stable and makes the push plate 13 and the outer sleeve plate 14 away from the reinforcing block 6;

[0039] When the lower pressing plate 4 slides to the first positioning groove 41 and the top wall of the protruding part of the first positioning groove 41 is attached to the upper end of the reinforcing block 6, the touch switch 8 is closed under the pressure of the positioning rod 7, the heating element 11 is powered on and heated, and the evaporated liquid in the elastic bag 12 is vaporized and expanded, the elastic bag 12 is expanded and pushes the push plate 13 and the outer sleeve plate 14 close to the reinforcing block 6, until the elastic pressing block 16 on the vertical plate of the outer sleeve plate 14 closest to the reinforcing block 6 is pressed and attached to the outer side of the reinforcing block 6, and the elastic pressing block 16 on the horizontal plate is pressed and attached to the upper end surface of the FPC plate, so that the outer sleeve plate 14 locks the flow area of the hot melt adhesive, when the lower pressing plate 4 continues to press and press in the subsequent process, the overflowed hot melt adhesive is adhered between the outer sleeve plate 14, the side wall of the reinforcing block 6 and the upper end surface of the FPC plate, avoiding the problem that the hot melt adhesive is randomly flowed and causes the reinforcing block 6 and the FPC plate 5 to be adhered to the lower pressing plate 4, and the heat generated by the heating element 11 is transmitted to the first positioning groove 41 through the evaporated liquid and the elastic bag 12, and then the hot melt adhesive in the first positioning groove 41 is solidified through heat exchange, realizing the effect of targeted heating and solidification of the hot melt adhesive area, compared with the whole heating mode of the FPC plate 5, having the advantages of concentrated heating and full utilization of heat energy;

[0040] The elastic pressing block 16 is fixedly connected with a sliding push rod 17 slidingly inserted into the outer sleeve plate 14. Specifically, an inlaid pressing plate 24 is fixedly inlaid at one end of the elastic pressing block 16 away from the outer sleeve plate 14, and the sliding push rod 17 is fixedly connected to the inlaid pressing plate 24. The inlaid pressing plate 24 increases the force receiving area of the sliding push rod 17. The outer sleeve plate 14 is provided with a through slot 141 for the sliding push rod 17 to slide through. A cutting tool 18 is slidingly arranged in the sliding push rod 17 and abuts against the inner wall of the through slot 141. The fixed connecting rod 15 is close to the through slot 141. The cutting tool 18 is connected with an elastic push block 19 which pushes the cutting tool 18 to slide outward and out of the sliding push rod 17. The elastic push block 19 has an elastic force to push the cutting tool 18 to out of the sliding push rod 17. The natural length of the elastic pressing block 16 is less than the sum of the interval length between adjacent outer sleeve plates 14 and the thickness of the outer sleeve plate 14, so that the elastic pressing blocks 16 on the outer sleeve plates 14 except for the outer sleeve plate 14 close to the reinforcing block 6 are not pressed. When the elastic capsule 12 is not inflated, the elastic pressing blocks 16 on the vertical plate of the outer sleeve plate 14 close to the reinforcing block 6 are not pressed by the reinforcing block 6, and the elastic pressing blocks 16 on the horizontal plate of the outer sleeve plate 14 close to the reinforcing block 6 are not pressed by the upper wall of the FPC plate 5. The sliding push rod 17 is kept stable under the support of the elastic pressing block 16, and the cutting tool 18 is located in the through slot 141 and is blocked by the inner wall of the through slot 141 and cannot be extended. When the elastic capsule 12 is inflated, the elastic pressing blocks 16 on the vertical plate of the outer sleeve plate 14 close to the reinforcing block 6 are pressed by the side wall of the reinforcing block 6, and the elastic pressing blocks 16 on the horizontal plate of the outer sleeve plate 14 close to the reinforcing block 6 are pressed by the upper wall of the FPC plate 5. The elastic pressing block 16 is compressed and drives the sliding push rod 17 to slide, so that the cutting tool 18 extends out of the through slot 141 and cuts the fixed connecting rod 15 under the push of the elastic push block 19, so that the outer sleeve plate 14 close to the reinforcing block 6 is separated from other outer sleeve plates 14. It is convenient for the elastic capsule 12 to drive other outer sleeve plates 14 to move away from the reinforcing block 6, and the outer sleeve plate 14 close to the reinforcing block 6 is attached to the reinforcing block 6 and the FPC plate 5.

[0041] Embodiment two:

[0042] The embodiment two optimizes the structure of the cutting tool based on the embodiment one, that is, the sliding push rod 17 is provided with a tool slot 171 which is opened in the side wall of the sliding push rod 17 and penetrates the side wall of the sliding push rod 17. The cutting tool 18 has two and extends out of the two ends of the tool slot 171. One end of the cutting tool 18 extending into the tool slot 171 is fixedly connected with a sliding push plate 25 which slidingly abuts against the inner wall of the tool slot 171, improving the stability of the cutting tool 18 in the sliding process in the tool slot 171. The elastic push block 19 is fixedly connected between the end faces of the two sliding push plates 25 close to each other. The fixed connecting rod 15 close to the through slot 141 is two and is matched with the two cutting tools 18 to cut;

[0043] The two ends of the cutter groove 171 are both fixedly connected with limiting blocks 26 for blocking the sliding push plate 25, the limiting blocks 26 are arranged to limit the stroke of the sliding push plate 25, so as to avoid the problem that the sliding push plate 25 drives the cutting tool 18 to separate from the cutter groove 171, the limiting blocks 26 are fixedly connected with guide rods 27 sliding through the sliding push plate 25, specifically, the guide rods 27 are fixedly connected between the limiting blocks 26 at the two ends of the cutter groove 171 and slidingly pass through the two sliding push plates 25, the guide rods 27 are arranged to guide the sliding process of the sliding push plate 25, so as to improve the stability of the sliding process of the sliding push plate 25 driving the cutting tool 18.

[0044] Working principle: when the reinforcing block 6 and the FPC plate 5 are pressed, the lower pressing plate 4 slides downward, the upper end of the reinforcing block 6 is inserted into the protruding part of the first positioning groove 41, the positioning rod 7 is slidingly inserted into the second positioning groove 42 and presses the touch switch 8, the heating element 11 is electrified to heat and make the evaporative liquid in the elastic bag 12 vaporize and expand, the elastic bag 12 expands and pushes the push plate 13 and the sleeve plate 14 to be close to the reinforcing block 6, until the elastic pressing block 16 on the vertical plate of the sleeve plate 14 closest to the reinforcing block 6 is extruded and attached to the outer side of the reinforcing block 6, and the elastic pressing block 16 on the horizontal plate is extruded and attached to the upper end face of the FPC plate, so as to lock the flow area of the heat curing glue, and the heat generated by the heating element 11 is transmitted to the first positioning groove 41 through the evaporative liquid and the elastic bag 12, and then the heat curing glue in the first positioning groove 41 is cured through heat exchange;

[0045] The elastic pressing block 16 on the vertical plate of the sleeve plate 14 close to the reinforcing block 6 is pressed by the side wall of the reinforcing block 6, the elastic pressing block 16 on the horizontal plate of the sleeve plate 14 close to the reinforcing block 6 is pressed by the upper wall of the FPC plate 5, the elastic pressing block 16 is compressed and drives the sliding push rod 17 to slide, so that the cutting tool 18 extends through the insertion slot 141 and is cut off from the fixed connecting rod 15 under the pushing of the elastic push block 19, so that the sleeve plate 14 close to the reinforcing block 6 is separated from other sleeve plates 14, so as to facilitate the elastic bag 12 to drive other sleeve plates 14 to move away from the reinforcing block 6 in the subsequent process, and the sleeve plate 14 close to the reinforcing block 6 is attached to the reinforcing block 6 and the FPC plate 5.

[0046] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pressing fixture for FPC light strips, comprising a clamping mechanism (1) for clamping a placement plate (3), and a linear drive motor (2) for driving a lower pressing plate (4) to press the placement plate (3) downward, wherein a reinforcing block (6) and an FPC plate (5) are placed above the placement plate (3) and are arranged vertically and bonded together by thermosetting adhesive, characterized in that: The lower pressure plate (4) has a convex first positioning groove (41) at its lower part, and the protrusion of the first positioning groove (41) is aligned and fits with the reinforcing block (6) vertically. The placement plate (3) is fixedly provided with a positioning rod (7) that extends upward and slides through the FPC plate (5), and the lower pressure plate (4) has a second positioning groove (42) for the positioning rod (7) to slide into. The upper end of the second positioning groove (42) is fixedly provided with a touch switch (8) that is electrically connected to the heating power supply (10) and the heating element (11) through a wire (9), and the positioning rod (7) squeezes the touch switch (8) to make the heating element (11) heat up. The first positioning groove (41) is provided with an elastic bladder (12) located outside the reinforcing block (6) and fixed at the top. The heating end of the heating element (11) extends into the evaporating liquid inside the elastic bladder (12). An L-shaped push plate (13) is fixedly connected to the outside of the elastic bladder (12). The vertical plate of the push plate (13) is attached to the side wall of the elastic bladder (12) near the reinforcing block (6), and the horizontal plate of the push plate (13) is attached to the lower end of the elastic bladder (12). Several L-shaped outer plates (14) are provided along the outer edge of the push plate (13) in the direction near the reinforcing block (6). The push plate (13) and the multiple outer plates (14) are stacked in sequence according to their L-shaped structure. The push plate (13) and its adjacent outer jacket plate (14), as well as the adjacent outer jacket plates (14), are fixedly connected by a fixed connecting rod (15). Both ends of the outer jacket plate (14) extend outwards along the direction close to the reinforcing block (6) to the adjacent outer jacket plate (14), and both ends of the outer jacket plate (14) are fixedly connected with elastic pressure blocks (16). The elastic pressure blocks (16) on the vertical plate of the outer jacket plate (14) extend toward the reinforcing block (6), and the elastic pressure blocks (16) on the horizontal plate of the outer jacket plate (14) extend toward the FPC plate (5). The natural length of the elastic pressure blocks (16) is less than the interval length between adjacent outer jacket plates (14) and the outer jacket plate. (14) The sum of thicknesses, the elastic pressure block (16) is fixedly connected to a sliding push rod (17) that is slidably inserted into the outer sleeve plate (14), and the outer sleeve plate (14) has a through slot (141) through which the sliding push rod (17) passes. The sliding push rod (17) has a cutting tool (18) that slides out and abuts against the inner wall of the through slot (141), and the cutting tool (18) is connected to an elastic push block (19) that pushes it out of the sliding push rod (17). The fixed connecting rod (15) is close to the through slot (141) and breaks under the cutting of the cutting tool (18) that extends out of the through slot (141).

2. The pressing fixture for FPC light strips according to claim 1, characterized in that: The linear drive motor (2) is electrically connected to a start switch (20) and a timing device (21).

3. The pressing fixture for FPC light strips according to claim 1, characterized in that: The clamping mechanism consists of at least one set of adjustable clamping components, and the adjustable clamping components include two clamping plates that are slidably arranged relative to each other, and a clamping electric cylinder for driving the clamping plates to slide.

4. The pressing fixture for FPC light strips according to claim 1, characterized in that: The lower end of the positioning rod (7) is fixedly connected to a positioning rod connecting plate (22), and the positioning rod connecting plate (22) is embedded in the bottom of the placement plate (3) by fixing bolts (23).

5. The pressing fixture for FPC light strips according to claim 1, characterized in that: The elastic pressure block (16) is fixedly inlaid with an inlaid pressure plate (24) at one end away from the outer cover plate (14), and the sliding push rod (17) is fixedly connected to the inlaid pressure plate (24).

6. The pressing fixture for FPC light strips according to claim 1, characterized in that: The sliding push rod (17) has a tool groove (171) with an opening on its side wall, and the inner wall of the tool groove (171) is slidably attached to the sliding push plate (25). One end of the cutting tool (18) extending into the tool groove (171) is fixedly connected to the sliding push plate (25), and the elastic push block (19) is fixedly connected between the tool groove (171) and the inner wall of the sliding push plate (25).

7. The pressing fixture for FPC light strips according to claim 6, characterized in that: A limiting block (26) is fixedly connected to the opening of the tool groove (171) to block the sliding push plate (25).

8. The pressing fixture for FPC light strips according to claim 7, characterized in that: The limiting block (26) is fixedly connected to a guide rod (27) that slides through the sliding push plate (25).

9. The pressing fixture for FPC light strips according to claim 8, characterized in that: The tool groove (171) passes through the side wall of the sliding push rod (17), and there are two sliding push plates (25) arranged opposite to each other. The ends of the two sliding push plates (25) that are far apart from each other are fixedly connected to cutting tools (18). There are two fixed connecting rods (15) near the through slot (141) that cooperate with the two cutting tools (18) to cut off one by one. The elastic push block (19) is fixedly connected between the two sliding push plates (25), and the two ends of the tool groove (171) are fixedly connected to limit blocks (26). The guide rod (27) is fixedly connected between the limit blocks (26) at both ends of the tool groove (171) and slides through the two sliding push plates (25).

10. The pressing fixture for FPC light strips according to claim 1, characterized in that: The elastic bladder (12) and the inner top wall of the first positioning groove (41) are fixedly connected by a fixed cylinder, and the heating element (11) passes through the fixed cylinder and extends into the elastic bladder (12), and the elastic bladder (12) and the push plate (13) are fixedly connected by an L-shaped fixed connecting block (28).

Images