Water-absorbing sponge roller pressing device

Abstract

The utility model relates to a water-absorbing sponge roller pressing device which comprises a limiting piece fixedly arranged on a shaft seat and provided with a limiting part. The pressing plate is in sliding connection with the limiting piece and is limited by the limiting part; the extrusion part is connected with the pressing plate through an elastic element, the extrusion part is provided with a plurality of lower pressing heads at intervals, the bottoms of the lower pressing heads are all located on the same horizontal plane, the elastic element expands the pressing plate and the extrusion part, so that the extrusion part and the pressing plate abut against the shaft seat and the limiting part correspondingly, and the pressing plate abuts against the shaft seat and the limiting part. The lower pressing head abuts against a rolling shaft of the water absorption sponge rolling wheel. The pressing plate, the elastic element and the extrusion part are integrally arranged, and the pressing device is integrally mounted on the shaft seat through the limiting part, so that the defect that the pressing device is complicated to disassemble is overcome, and the problem that the elastic element is easy to fall off is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB circuit board processing, in particular to a water-absorbing sponge roller pressing device. Background Art

[0002] During the manufacturing process of PCB circuit boards, the residual moisture on the surface of PCB boards needs to be absorbed before entering the drying section after the wet process. The current practice is to use a water-absorbing sponge roller to absorb the residual moisture on the surface of the PCB boards while they are moving. During the drying process, the water-absorbing sponge roller expands due to water absorption, and its water absorption effect gradually decreases. In order to maximize the drying effect, the water-absorbing sponge roller is usually pressed down in advance to discharge the internal gas, so that the water-absorbing sponge roller can achieve the best adsorption capacity. However, the water-absorbing sponge roller needs to be disassembled and maintained frequently, the clamping screw is cumbersome to disassemble, and the spring is easy to pop out and fall off, which brings a lot of inconvenience to the work. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the clamping screw is cumbersome to disassemble and easily causes the spring to fall off, and then provide a water-absorbing sponge roller clamping device, which solves the defect of cumbersome disassembly of the clamping device and effectively avoids the problem of easy falling of the elastic element.

[0004] In order to solve the above technical problems, the utility model provides a water-absorbing sponge roller pressing device, comprising:

[0005] A limiting member, which is fixedly arranged on the shaft seat, and the limiting member is provided with a limiting portion;

[0006] A pressing plate, which is slidably connected to the limiting member and is limited by the limiting portion;

[0007] An extrusion member is connected to the pressure plate through an elastic element, and the extrusion member is provided with a plurality of lower pressure heads at intervals, and the bottoms of the plurality of lower pressure heads are all located on the same horizontal plane, wherein the elastic element props up the pressure plate and the extrusion member so that the extrusion member and the pressure plate respectively abut against the shaft seat and the limiting portion, and the lower pressure head abuts against the roller of the water-absorbing sponge roller.

[0008] In one embodiment of the present invention, the plurality of pressing heads are equidistantly distributed along the X-axis direction.

[0009] In one embodiment of the present invention, the gap between adjacent pressing heads is configured as a guide groove, and the guide groove extends along the Y-axis direction.

[0010] In one embodiment of the utility model, the extrusion piece is provided with a plurality of guide columns arranged in parallel, each of the guide columns is provided with a limiting head, the pressure plate is slidably connected to the guide columns and is limited by the limiting head, and the elastic element is sleeved on the guide columns and is squeezed by the pressure plate and the extrusion piece.

[0011] In an embodiment of the present invention, the elastic element and the guide column are arranged at two ends of the extrusion piece.

[0012] In one embodiment of the present invention, the pressure plate is provided with a plurality of through holes, and the plurality of guide posts pass through the plurality of through holes respectively.

[0013] In an embodiment of the present invention, the guide column is configured as a bolt, and one end of the bolt is threadedly connected to the extrusion piece.

[0014] In an embodiment of the present invention, a plurality of avoidance openings are provided on the same side of the pressure plate corresponding to the limit member, and the avoidance openings are slidably connected to the limit member.

[0015] In an embodiment of the utility model, the pressing plate is provided with a pressing area and connecting areas located on both sides of the pressing area, the pressing area is larger than the connecting area, and the avoidance opening and the through hole are both arranged in the connecting area.

[0016] In one embodiment of the utility model, a plurality of the limiting members are included, and the plurality of limiting members are all configured as bolts, one end of the bolts are threadedly connected to the shaft seat, the plurality of limiting members are arranged at both ends of the pressure plate, and the extrusion member and the elastic element are both located between the plurality of limiting members.

[0017] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0018] The water-absorbing sponge roller pressing device described in the utility model is integrally arranged with a pressing plate, an elastic element and an extrusion piece. By setting a limiting piece, the pressing device as a whole can be quickly installed on the shaft seat, thereby solving the defect of cumbersome disassembly of the pressing device. The elastic element is limited between the pressing plate and the extrusion piece, thereby effectively avoiding the problem of the elastic element falling off. The extrusion piece is provided with a plurality of lower pressure heads, and the bottoms of the plurality of lower pressure heads are located on the same horizontal plane, so that a plurality of water-absorbing sponge rollers can be equivalently pressed at the same time, thereby improving the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0020] Figure 1It is a structural schematic diagram of a side view of a water-absorbing sponge roller pressing device in a preferred embodiment of the utility model.

[0021] Explanation of the reference numerals in the drawings in the specification: 1. pressure plate; 11. avoidance opening; 2. extrusion member; 21. lower pressure head; 22. guide groove; 3. limit member; 4. guide column; 5. elastic element; 6. connection area; 61. pressing area. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0023] Example

[0024] Reference Figure 1 As shown, in one embodiment of the utility model, a water-absorbing sponge roller pressing device includes:

[0025] A limiting member 3 is vertically fixed on the shaft seat, and a limiting portion is provided on the top of the limiting member 3;

[0026] A pressing plate 1 is slidably connected to the limiting member 3 and is limited by the limiting member. The pressing plate 1 can be made of metal or hard plastic material, and the cross section can be set to a square or circular structure. The circumference size matches the palm of the hand for easy grip;

[0027] An extrusion member 2 is connected to the pressing plate 1 through an elastic element 5, and the elastic element 5 is always in an extruded state between the extrusion member 2 and the pressing plate 1, and the elastic element 5 is preferably a spring; the extrusion member 2 is provided with a plurality of lower pressing heads 21 at intervals, and the bottoms of the plurality of lower pressing heads 21 are all located on the same horizontal plane, and the lower pressing heads 21 are used to press the end of the roller shaft of the water-absorbing sponge roller; the spacing between adjacent lower pressing heads 21 matches the spacing between the roller shafts of adjacent water-absorbing sponges; wherein, when the clamping device is installed on the shaft seat, the elastic element 5 props the pressing plate 1 and the extrusion member 2 apart, so that the extrusion member 2 and the pressing plate 1 respectively abut against the shaft seat and the limiting portion, the clamping device is limited in the Z and X axis directions, and the lower pressing head abuts against the shaft sleeve of the roller shaft of the water-absorbing sponge roller; the extrusion member 2 can be set to be a metal or hard plastic material;

[0028] In this embodiment, the shaft seat is used to support both ends of the roller shafts of multiple water-absorbing sponge rollers. Both ends of the roller shafts are provided with shaft sleeves, which abut against the shaft seat. Furthermore, the shaft seat is provided with multiple protrusions, and the gaps between adjacent protrusions are installation grooves for accommodating the shaft sleeves and the roller shafts of the water-absorbing sponge rollers. The sponge rollers on the shaft seat are arranged up and down and the gap in the middle is set as a PCB board channel. Both ends of the sponge roller are provided with clamping devices, and the two sponge rollers arranged up and down are configured with two clamping devices arranged up and down. When the PCB board passes through the channel, the thickness of the PCB board pushes the upper and lower sponge rollers up and down. Since the lower pressure head 21 presses the roller shaft of the sponge roller, the sponge roller is compressed and deformed by the PCB board and the roller shaft to discharge the internal gas, and at the same time, the sponge roller begins to absorb moisture on the surface of the PCB board.

[0029] In one embodiment of the present invention, referring to Figure 1 As shown, the three pressing heads 21 are equidistantly distributed along the X-axis direction. When the pressing device is installed in place, the lower side of each pressing head 21 corresponds to a roller of a sponge roller.

[0030] In one embodiment of the present invention, referring to Figure 1 As shown, the gap between adjacent lower pressure heads 21 is set as a guide groove 22, and the guide groove 22 extends along the Y-axis direction. The guide groove 22 matches the protrusion. When the clamping device is moved along the Y-axis and installed on the shaft seat, the guide groove 22 facilitates the extrusion part 2 to slide over the protrusion.

[0031] In one embodiment of the present invention, referring to Figure 1 As shown, the extrusion member 2 is provided with two parallel guide columns 4, and the tops of the guide columns 4 are provided with limit heads. The pressure plate 1 is slidably connected with the guide columns 4 and is limited by the limit heads. The elastic element 5 is sleeved on the guide columns 4, and the elastic element 5 is located between the pressure plate 1 and the extrusion member 2. When disassembling the clamping device, the pressure plate 1 is pressed, and the pressure plate 1 moves downward along the guide columns 4. The elastic element 5 is further squeezed, the pressure plate 1 and the limit member 3 are released, and the clamping device is lightly pulled sideways to complete the disassembly.

[0032] In one embodiment of the present invention, referring to Figure 1 As shown, the elastic element 5 and the guide column 4 are arranged at the two ends of the extrusion member 2, and the pressure of the pressure plate 1 is transmitted to the two ends of the extrusion member 2 through the elastic element 5. When the sponge roller pushes the lower pressure head 21, it is ensured that the force between each sponge roller and each lower pressure head 21 is equal.

[0033] In one embodiment of the present invention, the pressing plate 1 is provided with two through holes, and the two guide posts 4 pass through the two through holes respectively, and the pressing plate 1 can slide up and down along the guide posts 4 through the through holes.

[0034] In one embodiment of the present invention, referring to Figure 1 As shown, in order to facilitate assembly and adjust the distance between the pressure plate 1 and the extrusion piece 2, the guide column 4 is configured as a bolt, one end of the bolt is threadedly connected to the screw hole of the extrusion piece 2, and the other end of the bolt passes through the through hole and forms a limit on the pressure plate 1 to prevent the pressure plate 1 from separating from the guide column 4; in order to improve the stability of the elastic element 5, the screw hole and the through hole are both provided with a receiving groove, and the end of the elastic element 5 is located in the receiving groove.

[0035] In one embodiment of the present invention, referring to Figure 1 As shown, in order to quickly install and disassemble the clamping device, two avoidance openings 11 are provided on the same side of the pressure plate 1, and the avoidance openings 11 are provided corresponding to the two guide columns 4. The diameter of the avoidance openings 11 matches the diameter of the guide columns 4. During installation, when the clamping device moves along the Y-axis direction and approaches the shaft seat, the avoidance openings 11 enclose the guide columns 4, and the guide columns 4 form an X-axis direction limit for the pressure plate 1.

[0036] In one embodiment of the present invention, referring to Figure 1 As shown, the pressing plate 1 is divided into a pressing area 61 and connecting areas 6 located on both sides of the pressing area 61. The length of the pressing area 61 is greater than the connecting area 6. The avoidance opening 11 and the through hole are both arranged in the connecting area 6. When pressing the pressing plate 1, the hand presses the pressing area 61 to press the pressing plate 1 down.

[0037] In one embodiment of the present invention, referring to Figure 1 As shown, it includes two limit members 3, and the two limit members 3 are both configured as bolts, one end of the bolts is threadedly connected to the shaft seat, the two limit members 3 are respectively arranged at the two ends of the pressure plate 1, and the extrusion member 2 and the elastic element 5 are both located between the multiple limit members 3.

[0038] The working principle of the water-absorbing sponge roller pressing device of the utility model is:

[0039] During installation, first press the pressing plate 1 to narrow the distance between the pressing plate 1 and the extrusion member 2, ensure that the lower pressing head 21 is aligned with the mounting groove of the shaft seat and the guide column 4 aligned with the avoidance opening 11 from the side, and then move the clamping device as a whole along the Y direction until the avoidance opening 11 surrounds the guide column 4 to form a limit, the lower pressing head 21 is inserted into the mounting groove and is located above the water-absorbing sponge roller sleeve, and then release the pressing plate 1 so that the pressing plate 1 rises and rests on the limit portion, and the bottom of the extrusion member 2 rests on the protrusion, and the installation is completed. When the PCB board passes through the PCB board channel, the thickness of the PCB board will push up and down the upper and lower sponge rollers, and the lower pressing head 21 will support the roller shaft of the sponge roller. The sponge roller is squeezed and deformed by the PCB board and the roller shaft to discharge the internal gas, and the sponge roller begins to absorb moisture on the surface of the board. When disassembling the clamping device, press the pressing plate 1 to narrow the distance between the pressing plate 1 and the extrusion member 2, release the limit between the pressing plate 1 and the limit portion, and then gently pull the clamping device along the Y-axis direction.

[0040] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A water-absorbing sponge roller pressing device, characterized in that: include, A limiting member, which is fixedly arranged on the shaft seat, and the limiting member is provided with a limiting portion; A pressing plate, which is slidably connected to the limiting member and is limited by the limiting portion; An extrusion member is connected to the pressure plate through an elastic element, and the extrusion member is provided with a plurality of lower pressure heads at intervals, and the bottoms of the plurality of lower pressure heads are all located on the same horizontal plane, wherein the elastic element props up the pressure plate and the extrusion member so that the extrusion member and the pressure plate respectively abut against the shaft seat and the limiting portion, and the lower pressure head abuts against the roller of the water-absorbing sponge roller.

2. The water-absorbing sponge roller pressing device according to claim 1, characterized in that: The plurality of pressing heads are distributed equidistantly along the X-axis direction.

3. The water-absorbing sponge roller pressing device according to claim 2, characterized in that: The gaps between adjacent pressing heads are configured as guide grooves, and the guide grooves extend along the Y-axis direction.

4. The water-absorbing sponge roller pressing device according to claim 3 is characterized in that: The extrusion piece is provided with a plurality of parallel guide posts, each of which is provided with a limit head, the pressure plate is slidably connected with the guide posts and is limited by the limit head, and the elastic element is sleeved on the guide posts and is squeezed by the pressure plate and the extrusion piece.

5. The water-absorbing sponge roller pressing device according to claim 4, characterized in that: The elastic element and the guide column are arranged at two ends of the extrusion piece.

6. The water-absorbing sponge roller pressing device according to claim 4, characterized in that: The pressing plate is provided with a plurality of through holes, and the plurality of guide posts pass through the plurality of through holes respectively.

7. The water-absorbing sponge roller pressing device according to claim 4, characterized in that: The guide column is configured as a bolt, and one end of the bolt is threadedly connected to the extrusion piece.

8. The water-absorbing sponge roller pressing device according to claim 6, characterized in that: A plurality of avoidance openings are provided on the same side of the pressure plate corresponding to the limiter, and the avoidance openings are slidably connected to the limiter.

9. The water-absorbing sponge roller pressing device according to claim 8, characterized in that: The pressing plate is provided with a pressing area and connecting areas located on both sides of the pressing area. The pressing area is larger than the connecting area. The avoidance opening and the through hole are both arranged in the connecting area.

10. The water-absorbing sponge roller pressing device according to claim 1, characterized in that: It comprises a plurality of the limit members, and the plurality of the limit members are all configured as bolts, one end of the bolts is threadedly connected to the shaft seat, the plurality of the limit members are arranged at both ends of the pressure plate, and the extrusion member and the elastic element are both located between the plurality of limit members.

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