Dry film residue moisture squeezing device for FPC etching film stripping

Abstract

The utility model relates to a dry film residue moisture squeezing device for FPC (flexible printed circuit) etching film stripping, which comprises a support table, a squeezing tube is fixedly mounted at the upper end of the support table, a squeezing screw is arranged in the squeezing tube, a feeding hole is formed in one side of the upper end of the squeezing tube, and one end of the squeezing tube is fixedly connected with a sealing plate. The utility model relates to the technical field of FPC (Flexible Printed Circuit) etching waste film treatment. According to the dry film residue water squeezing device for FPC etching film stripping, dry film leftover materials stained with water stains are put into the squeezing pipe from the feeding hole, the squeezing screw rod is driven to rotate through the driving motor, the squeezing screw rod pushes the dry film waste materials to move in the squeezing pipe, the dry film waste materials are compressed, water in the dry film waste materials is squeezed out, and the dry film residue water squeezing device for FPC etching film stripping is achieved. Extruded water flows out through the drainage groove, and the dry film is discharged along the extrusion pipe under the influence of the extrusion screw rod, so that the efficiency of extruding and draining the large-batch dry film waste is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC etching waste film treatment, in particular to a dry film residue squeezing and dewatering device for FPC etching film stripping. Background Art

[0002] FPC is a printed circuit. The FPC flexible printed circuit is a highly reliable and excellent flexible printed circuit made of polyimide or polyester film. During the production process of FPC, dewatering work is carried out on the dry film residue after production.

[0003] Chinese Patent Publication No. CN212288867U discloses a dry film residue squeezing and dewatering device for FPC etching film stripping, including a working box. A bottom plate is arranged in the inner cavity of the working box. A filter basket is fixedly connected to the top of the bottom plate. Legs are fixedly connected to the four corners of the bottom of the bottom plate. The bottom of the legs is movably connected with rollers through a rotating shaft. A through hole is opened at the center of the top of the working box. A hydraulic telescopic rod is arranged in the inner cavity of the through hole. The bottom of the hydraulic telescopic rod extends into the inner cavity of the working box through the through hole and is fixedly connected with a pressing plate. A fixed ring is fixedly connected to the top of the surface of the hydraulic telescopic rod.

[0004] Through the combined use of the working box, the bottom plate, the filter basket, the legs, the through hole, the hydraulic telescopic rod, the pressing plate, the fixed ring, the connecting rod, the box door, the sealing ring and the drain pipe, the moisture in the dry film residue can be squeezed mechanized.

[0005] However, it can only squeeze and drain the waste film in batches and cannot work continuously, resulting in low efficiency when dealing with a large number of waste films. Content of the Utility Model

[0006] In view of the deficiencies of the existing technology, the purpose of the utility model is to provide a dry film residue squeezing and dewatering device for FPC etching film stripping, so as to solve the technical problems mentioned in the above background art.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions:

[0008] A dry film residue squeezing and dewatering device for FPC etching film stripping, including a support table. An extrusion pipe is fixedly installed at the upper end of the support table. An extrusion screw is arranged inside the extrusion pipe. A feed hole is opened at one side of the upper end of the extrusion pipe. One end of the extrusion pipe is fixedly connected with a sealing plate. A driving motor is embedded inside the sealing plate. The motor shaft of the driving motor is connected with the extrusion screw. A drainage groove is opened at the bottom side of the extrusion pipe.

[0009] Further, the extrusion tube is in a conical barrel shape, and the feed hole is opened at the large-diameter end of the extrusion tube. A plurality of linearly distributed water guide grooves are formed on the inner wall of the extrusion tube.

[0010] Further, the drainage groove is arranged in an arc shape, and the inner arc side of the drainage groove faces the opposite direction to the rotation direction of the extrusion screw.

[0011] Further, the extrusion screw includes a conical rod. The taper of the conical rod is equal to that of the extrusion tube. A spiral disk is wrapped on the outer surface of the conical rod. The pitch of the spiral disk gradually decreases from the large-diameter end to the small-diameter end of the conical rod, and the outer extension of the spiral disk is in contact with the inner wall of the extrusion tube.

[0012] Further, a water guide plate is fixedly connected inside the drainage groove near the outer wall of the extrusion tube. One end of the water guide plate is flush with the small-diameter end of the extrusion tube, and the other end of the water guide plate extends to one side of the sealing plate and has a drainage gap with the sealing plate.

[0013] Further, a water collecting cylinder is arranged below the drainage gap, and the water collecting cylinder is movably connected with the support platform.

[0014] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0015] 1. For the dry film residue squeezing moisture device for FPC etching and stripping film, the dry film corner waste with water stains is put into the inside of the extrusion tube from the feed hole. The extrusion screw is rotated by the driving motor, so that the extrusion screw pushes the dry film waste to move inside the extrusion tube and compresses the dry film waste, squeezing out the moisture in the dry film waste. The squeezed moisture will flow out through the drainage groove, and the dry film is discharged along the extrusion tube under the influence of the extrusion screw, achieving the improvement of the efficiency of squeezing and draining a large number of dry film wastes.

[0016] 2. For the dry film residue squeezing moisture device for FPC etching and stripping film, since the taper of the extrusion tube and the conical rod is equal, the corresponding gaps between the outer wall of the conical rod and the inner wall of the extrusion tube are equal. And because the extrusion tube is conical, during the process of the conical rod rotating and pushing the dry film to move through the spiral disk, the space gradually becomes smaller, achieving the effect of squeezing the dry film. And with the setting that the pitch of the spiral disk decreases as the diameter of the conical rod becomes smaller, during the process of pushing the dry film to move, the efficiency of compressing the dry film is improved, and further the extrusion and discharge efficiency is improved. Description of the Drawings

[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of a dry film residue squeezing moisture device for FPC etching and stripping film of the present utility model.

[0019] Figure 2 It is a schematic internal structural diagram of a dry film residue squeezing moisture device for FPC etching and stripping film of the present utility model.

[0020] Figure 3 It is a schematic structural diagram of a drainage tank of a dry film residue squeezing moisture device for FPC etching and stripping film of the present utility model.

[0021] In the figure, 1 is a support platform; 2 is an extrusion tube; 3 is an extrusion screw; 31 is a tapered rod; 32 is a spiral disk; 4 is a feed hole; 5 is a sealing plate; 6 is a driving motor; 7 is a drainage tank; 8 is a water guide groove; 9 is a water guide plate; 10 is a drainage gap; 11 is a water collecting cylinder. Specific embodiments

[0022] The following further elaborates on the present utility model with reference to the drawings. Embodiment

[0023] Refer to Figures 1 - 3 A dry film residue squeezing moisture device for FPC etching and stripping film disclosed by the present utility model includes a support platform 1. An extrusion tube 2 is fixedly installed at the upper end of the support platform 1. An extrusion screw 3 is arranged inside the extrusion tube 2. A feed hole 4 is opened on one side of the upper end of the extrusion tube 2. One end of the extrusion tube 2 is fixedly connected with a sealing plate 5. A driving motor 6 is embedded inside the sealing plate 5, and the motor shaft of the driving motor 6 is connected to the extrusion screw 3. A drainage tank 7 is opened at the bottom side of the extrusion tube 2.

[0024] In this embodiment, during use, the dry film corner waste with water stains is put into the inside of the extrusion tube 2 from the feed hole 4. Then, the extrusion screw 3 is rotated by the driving motor 6, so that the extrusion screw 3 pushes the dry film waste to move inside the extrusion tube 2 and compresses the dry film waste, squeezing out the moisture in the dry film waste. The squeezed-out moisture will flow out through the drainage tank 7, and the dry film is discharged along the extrusion tube 2 under the influence of the extrusion screw 3, achieving the improvement of the efficiency of squeezing and draining a large number of dry film wastes.

[0025] In a further preferred embodiment of the present utility model, as Figures 1 - 3As shown, the extrusion tube 2 is in the shape of a conical barrel, and the feed hole 4 is opened at the large-diameter end of the extrusion tube 2. A plurality of water guide grooves 8 are linearly distributed on the inner wall of the extrusion tube 2.

[0026] In this embodiment, through the conical barrel-shaped extrusion tube 2, and since the feed hole 4 is at the large-diameter end of the extrusion tube 2, when the material moves along the large diameter of the extrusion tube 2 to the small diameter, due to the constant rotation speed of the extrusion screw 3 and the gradually decreasing position space of the material, the pressure on the material will gradually increase, so as to achieve the purpose of continuously squeezing out water during the movement. Through the arrangement of the water guide grooves 8, it is convenient for water to flow into the inside of the drainage groove 7 through the water guide grooves 8.

[0027] In a further preferred embodiment of the present utility model, as Figures 1 - 3 shown, the drainage groove 7 is arranged in an arc shape, and the inner arc side of the drainage groove 7 faces the opposite direction to the rotation direction of the extrusion screw 3.

[0028] In this embodiment, since the drainage groove 7 is arranged in an arc shape, during the process of the extrusion screw 3 pushing and extruding the dry film residue, the dry film residue is quickly discharged along the drainage groove 7. Since the inner arc side of the drainage groove 7 faces the opposite direction to the rotation direction of the extrusion screw 3 and the inner arc side of the drainage groove 7 is tangent to the inner pipe wall of the extrusion tube 2, during the rotation of the extrusion screw 3, the effect of preventing the dry film from entering the inside of the drainage groove 7 can be effectively achieved.

[0029] In a further preferred embodiment of the present utility model, as Figures 1 - 3 shown, the extrusion screw 3 includes a conical rod 31. The taper of the conical rod 31 is equal to that of the extrusion tube 2. The outer surface of the conical rod 31 is wrapped with a spiral disk 32. The pitch of the spiral disk 32 gradually decreases from the large-diameter end to the small-diameter end of the conical rod 31, and the outer extension of the spiral disk 32 is in contact with the inner wall of the extrusion tube 2.

[0030] In this embodiment, since the taper of the extrusion tube 2 is equal to that of the conical rod 31, the gaps corresponding to the outer wall of the conical rod 31 and the inner wall of the extrusion tube 2 are equal. And since the extrusion tube 2 is conical, during the process of the conical rod 31 rotating and pushing the dry film through the spiral disk 32, the space gradually becomes smaller, achieving the effect of extruding the dry film. And since the pitch of the spiral disk 32 decreases as the diameter of the conical rod 31 decreases, during the process of pushing the dry film to move, the effect of further extruding the dry film is achieved, so as to achieve the purpose of improving the extrusion efficiency.

[0031] In a further preferred embodiment of the present utility model, as Figures 1 - 3As shown, a water guide plate 9 is fixedly connected inside the drain trough 7 near the outer wall of the extrusion tube 2. One end of the water guide plate 9 is flush with the small-diameter end of the extrusion tube 2, and the other end of the water guide plate 9 extends to one side of the sealing plate 5 and has a drainage gap 10 with the sealing plate 5.

[0032] In this embodiment, the bottom end of the drain trough 7 is closed by the arrangement of the water guide plate 9, so that the water flowing into the inside of the drain trough 7 flows through the water guide plate 9 to the drainage gap 10 between the water guide plate 9 and the sealing plate 5, and then is discharged, achieving the effect of facilitating the collection of the extruded water.

[0033] In a further preferred embodiment of the present invention, as Figures 1 - 3 shown, a water collecting cylinder 11 is arranged below the drainage gap 10, and the water collecting cylinder 11 is movably connected to the support table 1.

[0034] In this embodiment, the water collecting cylinder 11 is used to collect the water discharged through the drainage gap 10.

[0035] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A device for squeezing moisture out of dry film residue for FPC etching and film stripping, comprising a support table (1), characterized in that: An extrusion tube (2) is fixedly mounted on the upper end of the support platform (1), an extrusion screw (3) is arranged inside the extrusion tube (2), a feeding hole (4) is provided on one side of the upper end of the extrusion tube (2), a sealing plate (5) is fixedly connected to one end of the extrusion tube (2), a driving motor (6) is embedded inside the sealing plate (5), and a motor shaft of the driving motor (6) is connected to the extrusion screw (3), and a drainage groove (7) is provided on the bottom side of the extrusion tube (2).

2. The device for squeezing moisture out of dry film residue for FPC etching and film stripping according to claim 1, characterized in that: The extrusion tube (2) is in the shape of a cone barrel, and the feed hole (4) is provided at the large diameter end of the extrusion tube (2). The inner wall of the extrusion tube (2) is provided with a plurality of linearly distributed water guide grooves (8).

3. The device for squeezing moisture out of dry film residue for FPC etching and film stripping according to claim 2, characterized in that: The drainage groove (7) is arranged in an arc shape, and the inner arc side of the drainage groove (7) faces opposite to the rotation direction of the extrusion screw (3).

4. The device for squeezing moisture out of dry film residue for FPC etching and film stripping according to claim 3, characterized in that: The extrusion screw (3) comprises a tapered rod (31), the tapering of the tapered rod (31) being equal to that of the extrusion tube (2), the outer surface of the tapered rod (31) being wrapped with a spiral disk (32), the pitch of the spiral disk (32) gradually decreasing from the large diameter end to the small diameter end of the tapered rod (31), and the extension of the spiral disk (32) being in contact with the inner wall of the extrusion tube (2).

5. The device for squeezing moisture out of dry film residue for FPC etching and film stripping according to claim 4, characterized in that: A water guide plate (9) is fixedly connected to the interior of the drainage groove (7) near the outer wall of the extruded tube (2); one end of the water guide plate (9) is flush with the small diameter end of the extruded tube (2), and the other end of the water guide plate (9) extends to one side of the sealing plate (5) and has a drainage gap (10) with the sealing plate (5).

6. The device for squeezing moisture out of dry film residue for FPC etching and film stripping according to claim 5, characterized in that: A water collecting cylinder (11) is provided below the drainage gap (10), and the water collecting cylinder (11) is movably connected to the support platform (1).

Images