Water jet cutter and printed circuit board operation machine

Abstract

The utility model relates to the technical field of printed circuit board processing equipment, and discloses a water jet cutter and a printed circuit board operation machine, the water jet cutter comprises a water inlet body and a water outlet body; a first cavity and reinforcing ribs are arranged in the water inlet body at intervals, a water inlet communicated with the first cavity is formed in one end of the water inlet body, and the cross section area of the first cavity is smaller than that of the water inlet; the water outlet body is connected with the water inlet body, a second cavity is formed in the water outlet body, the first cavity is communicated with the second cavity through a plurality of flow dividing holes, the cross section area of the second cavity is smaller than that of the first cavity, a plurality of water outlet holes are formed in the face, away from the water inlet body, of the water outlet body at intervals, and the water outlet holes are communicated with the second cavity. The reinforcing ribs are arranged in the water inlet body, so that the structural strength of the water inlet body can be remarkably improved, the use stability of the water jet scalpel is improved, and the service life of the water jet scalpel is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of printed circuit board processing equipment, specifically to water jet cutting and printed circuit board processing machinery. Background Technology

[0002] In the manufacturing process of printed circuit boards (PCBs), water jets are used for hole processing.

[0003] Currently, existing waterjet cutters typically spray a high-pressure stream of water from the outlet, which acts on the printed circuit board to complete the hole machining. However, the reaction force of the water stream can easily cause the waterjet to deform and bend, affecting its stability during use. Utility Model Content

[0004] In view of this, the present invention provides a water jet cutting and printed circuit board processing machine to solve the problem that the water jet is easily deformed and bent and has poor stability due to the reaction force of the water flow during use.

[0005] In a first aspect, this utility model provides a water jet, comprising:

[0006] The water inlet body has a first chamber and a reinforcing rib arranged at intervals inside. One end of the water inlet body is provided with a water inlet that communicates with the first chamber. The cross-sectional area of ​​the first chamber is smaller than the cross-sectional area of ​​the water inlet.

[0007] The water outlet body is connected to the water inlet body. The water outlet body has a second chamber. The first chamber is connected to the second chamber through multiple diversion holes. The cross-sectional area of ​​the second chamber is smaller than that of the first chamber. The side of the water outlet body away from the water inlet body is provided with multiple water outlet holes at intervals. The multiple water outlet holes are respectively connected to the second chamber.

[0008] Beneficial Effects: This waterjet cutter uses an inlet to input water flow. The water first enters the first chamber, then flows through a diversion hole into the second chamber, and finally exits from the outlet to process the substrate. Because the cross-sectional area of ​​the first chamber is smaller than that of the inlet, the water is pressurized upon entering the first chamber. Similarly, the cross-sectional area of ​​the second chamber is smaller than that of the first chamber, resulting in secondary pressurization. This creates a uniform flow at multiple outlets, ensuring consistent substrate processing. Furthermore, the inlet body is equipped with reinforcing ribs, enhancing its structural strength and reducing deformation caused by the water jet's reaction force during operation. This improves the waterjet's operational stability and extends its service life.

[0009] In one optional embodiment, the first chamber is located on the side of the water inlet body near the second chamber, and the reinforcing rib is a steel bar, which is embedded in the side of the water inlet body away from the second chamber.

[0010] Beneficial effects: Placing the first chamber on the side of the inlet body closer to the second chamber shortens the distance between the two chambers, facilitating their connection, and also provides space for the installation of reinforcing ribs. This arrangement also allows for direct adjustment of the cross-sectional area of ​​the first chamber to be smaller than that of the inlet, thus achieving a pressurization effect. The reinforcing ribs are steel bars, embedded in the side of the inlet body furthest from the second chamber, resulting in a simple structure, low manufacturing difficulty, and low operating cost.

[0011] In one optional embodiment, the inlet body is cylindrical and the outlet body is elongated.

[0012] Beneficial effects: The cylindrical shape of the water inlet facilitates installation on the machine body and also facilitates water flow. The elongated shape of the water outlet allows multiple outlets to be positioned on the same plane for uniform water output, facilitating substrate processing.

[0013] In one alternative embodiment, a plurality of the diversion holes are spaced apart along the axial direction of the water inlet body.

[0014] Beneficial effects: By arranging multiple diversion holes at intervals along the axial direction of the water inlet body, water can flow evenly from the first chamber into the second chamber, ensuring consistent water pressure at the outlet and thus improving the stability of substrate processing.

[0015] In one optional embodiment, the water outlet body has a water outlet surface away from the water inlet body, and a plurality of water outlet holes are arranged in a row on the water outlet surface.

[0016] Beneficial effects: Arranging multiple water outlets in a row on the water outlet surface, i.e., on the same surface, makes it easier to process multiple holes on a plate-shaped substrate at the same time, thus improving work efficiency.

[0017] In one alternative embodiment, the inlet is provided with a filter screen extending into the first chamber.

[0018] Beneficial effects: The filter screen is used to filter impurities in the water flow introduced through the inlet, preventing the outlet from becoming clogged.

[0019] Secondly, this utility model also provides a printed circuit board manufacturing machine, comprising:

[0020] Organism;

[0021] In the aforementioned water jet, the water inlet body is located on the machine body.

[0022] Beneficial effects: Since printed circuit board processing machinery includes water jets, which have the same effect as water jets, they will not be elaborated here.

[0023] In one optional embodiment, the water inlet body has a first end and a second end opposite to each other, the water inlet is disposed at the first end, and a limiting part is also provided on the first end, the limiting part being connected to the body.

[0024] Beneficial effects: By setting a limiting part on the first end of the water inlet body, the water jet can be positioned by connecting the limiting part to the machine body, thereby improving the installation accuracy of the water jet and thus improving the stability of the water jet in use.

[0025] In one optional embodiment, the water jet further includes a sealing plug, the second end of which has a through hole communicating with the first chamber, one end of the sealing plug being detachably and sealingly connected to the through hole, and the other end being connected to the body.

[0026] Beneficial effect: When the water jet needs maintenance, the sealing plug can be removed to allow for maintenance of the internal components of the water inlet unit.

[0027] In one optional embodiment, a plurality of support portions extending in the width direction are respectively provided on opposite sides of the water outlet body;

[0028] The machine body is provided with a transport mechanism, which includes a plurality of spaced rollers, each roller having a plurality of rollers spaced apart, and a support portion disposed in the gap between adjacent rollers for supporting the base plate.

[0029] Beneficial effects: By setting a support part in the gap between adjacent rollers, the support part can support the substrate together with the rollers, which is conducive to the stable processing of thinner substrates. It can avoid the substrate being subjected to the force of the water jet but not being able to get effective support, which would cause it to bend or fall. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a water jet according to an embodiment of the present utility model;

[0032] Figure 2 This is an exploded view of a water jet according to an embodiment of the present invention;

[0033] Figure 3 This is a cross-sectional view of a water jet according to an embodiment of the present utility model;

[0034] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0035] Figure 5 for Figure 3 Enlarged view of point B in the image;

[0036] Figure 6 This is a side view of a water jet according to an embodiment of the present utility model;

[0037] Figure 7 This is another cross-sectional view of a water jet according to an embodiment of the present utility model;

[0038] Figure 8 This is a partial schematic diagram of the printed circuit board manufacturing machinery according to an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Water inlet body; 101. First end; 102. Second end; 103. Limiting part; 2. First chamber; 3. Reinforcing rib; 4. Water inlet; 5. Water outlet body; 501. Support part; 6. Second chamber; 7. Diverting hole; 8. Water outlet; 9. Filter screen; 10. Body; 11. Sealing plug; 12. Transport mechanism; 1201. Roller; 1202. Roller. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0042] The following is combined with Figures 1 to 8 The following describes embodiments of the present invention.

[0043] According to embodiments of the present invention, on the one hand, such as Figure 1 and Figure 2As shown, a water jet is provided, mainly comprising: an inlet body 1 and an outlet body 5. The inlet body 1 has a first chamber 2 and reinforcing ribs 3 spaced apart inside. One end of the inlet body 1 has an inlet 4 communicating with the first chamber 2, and the cross-sectional area of ​​the first chamber 2 is smaller than the cross-sectional area of ​​the inlet 4. The outlet body 5 is connected to the inlet body 1 and has a second chamber 6 inside. The first chamber 2 is connected to the second chamber 6 through multiple diversion holes 7. The diversion holes 7 are used for continuous and balanced liquid diversion and replenishment. The cross-sectional area of ​​the second chamber 6 is smaller than the cross-sectional area of ​​the first chamber 2. The side of the outlet body 5 away from the inlet body 1 has multiple outlet holes 8 spaced apart, and each outlet hole 8 is connected to the second chamber 6.

[0044] Therefore, the water jet provided in this embodiment of the invention inputs water through the inlet 4. The water first enters the first chamber 2, then flows through the diversion hole 7 into the second chamber 6, and finally flows out from the outlet hole 8 to process the substrate. Since the cross-sectional area of ​​the first chamber 2 is smaller than that of the inlet 4, the water is pressurized once upon entering the first chamber 2. Similarly, the cross-sectional area of ​​the second chamber 6 is smaller than that of the first chamber 2, and the water is pressurized a second time upon entering the second chamber 6. This creates a uniform flow at multiple outlet holes 8, which helps to ensure the consistency of substrate processing. Moreover, the inlet body 1 is also equipped with reinforcing ribs 3, which can improve the structural strength of the inlet body 1. During the use of the water jet, the deformation of the water jet caused by the reaction force of the water flow is reduced, thereby improving the operational stability and service life of the water jet.

[0045] Specifically, the cross-sectional area of ​​the first chamber 2 is as follows: Figure 7 As shown in S1, the cross-sectional area of ​​inlet 4 is as follows: Figure 6 As shown in S2, the cross-sectional area of ​​the second chamber 6 is as follows: Figure 7 As shown in S3. The diversion hole 7 can be formed on the water inlet body 1. An opening is provided on one side of the water outlet body 5, and the opening covers the area of ​​the water inlet body 1 where the diversion hole 7 is provided, and the opening is sealed to the contact part of the water inlet body 1.

[0046] Specifically, the water inlet 4 of the water inlet body 1 is also connected to the water inlet pipe, and a sealing ring is provided at the connection to ensure the sealing of the water inlet 4. The water inlet pipe is used to provide the water source and initial water pressure.

[0047] It should be noted that this embodiment of the utility model does not limit the connection method between the water outlet body 5 and the water inlet body 1, and any existing structure can be selected as needed. For example, the water outlet body 5 and the water inlet body 1 can be welded together, which provides a firm connection and good sealing performance, or the water outlet body 5 and the water inlet body 1 can be integrally formed for convenient use.

[0048] In one embodiment, such as Figure 3 and Figure 7As shown, the first chamber 2 is located on the side of the inlet body 1 closest to the second chamber 6, and the reinforcing rib 3 is a steel bar, which is embedded in the side of the inlet body 1 furthest from the second chamber 6. Positioning the first chamber 2 on the side of the inlet body 1 closest to the second chamber 6 shortens the distance between the first chamber 2 and the second chamber 6, facilitating communication between them, and also provides space for the installation of the reinforcing rib 3. This arrangement also allows for direct adjustment so that the cross-sectional area of ​​the first chamber 2 is smaller than the cross-sectional area of ​​the inlet 4, thereby achieving a pressurization effect.

[0049] Specifically, the reinforcing rib 3 is a steel strip, which is embedded in the side of the water inlet body 1 away from the second chamber 6. The structure is simple, the processing difficulty is low, and the usage cost is low. The water jet of this utility model embodiment is made by a stamping process. The steel strip is embedded in advance on the side of the water inlet body 1 away from the second chamber 6, so that the steel strip can be built into the water inlet body 1.

[0050] Compared to the traditional method of directly setting metal reinforcing ribs on the outside of the water jet and then wrapping it with a fixing layer, such as a PP (polypropylene) layer or a PVC (polyvinyl chloride) layer, to isolate the chemical solution, this embodiment of the utility model embeds the steel strip inside the water inlet body 1, which can significantly reduce the processing difficulty and thus reduce the cost of use.

[0051] It should be noted that the present invention does not limit the shape of the inlet body 1 and the outlet body 5, and any existing structure can be selected as needed.

[0052] In one embodiment, such as Figure 1 and Figure 2 As shown, the water inlet body 1 is cylindrical, and the water outlet body 5 is elongated. The cylindrical shape of the water inlet body 1 facilitates installation on the body 10 and also facilitates water flow. The elongated shape of the water outlet body 5 allows multiple water outlets 8 to be located on the same plane for uniform water output, which is convenient for processing the substrate.

[0053] Specifically, such as Figure 7 As shown, the first chamber 2 is eccentrically positioned along the axial direction of the water inlet body 1. The axial direction of the water inlet body 1 is also the length direction of the water inlet body 1, as shown in the figure. Figure 1 As indicated by arrow L in the diagram.

[0054] It should be noted that the present invention does not limit the shape and arrangement of the diversion holes 7. For example, the diversion holes 7 can be selected as round holes, square holes, elliptical holes, etc., as needed, and the diversion holes 7 can be distributed on the water inlet body 1 in sequence.

[0055] Furthermore, there are no restrictions on the shape and arrangement of the water outlet holes 8. For example, the water outlet holes 8 can be selected as round holes, square holes, elliptical holes, etc., as needed, and the water outlet holes 8 can be distributed in sequence on the water outlet body 5.

[0056] In one embodiment, such as Figure 2 As shown, multiple diversion holes 7 are spaced apart along the axial direction of the water inlet body 1. By arranging multiple diversion holes 7 spaced apart along the axial direction of the water inlet body 1, water can flow evenly from the first chamber 2 into the second chamber 6, ensuring the consistency of water pressure at the water outlet 8, thereby improving the stability of substrate processing.

[0057] In one embodiment, such as Figure 1 and Figure 2 As shown, the water outlet body 5 has a water outlet surface that is far from the water inlet body 1, and multiple water outlet holes 8 are arranged in a row on the water outlet surface. Arranging multiple water outlet holes 8 in a row on the water outlet surface, that is, on the same surface, makes it convenient to process multiple holes on the plate-shaped substrate at the same time, thereby improving work efficiency.

[0058] In one embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, a filter screen 9 extending into the first chamber 2 is provided at the water inlet 4. The filter screen 9 is used to filter impurities in the water flow introduced through the water inlet 4, preventing the water outlet 8 from becoming clogged. The filter screen 9 can be selected from any existing structure as needed, and this embodiment of the present invention does not impose too many restrictions on this.

[0059] According to an embodiment of the present invention, another aspect is provided: a printed circuit board processing machine, mainly comprising: a machine body 10 and a water jet, wherein the water inlet body 1 of the water jet is disposed on the machine body 10.

[0060] Since printed circuit board processing machinery includes water jetting, which has the same effect as water jetting, it will not be elaborated on here.

[0061] Specifically, the printed circuit board processing machinery can be used to process blind holes on a substrate, which can be a PCB board. That is, water jets are sprayed out through the water outlet 8 of the water jet, and the water jets act on the PCB board to process multiple blind holes.

[0062] In one embodiment, such as Figure 3 and Figure 4 As shown, the water inlet body 1 has a first end 101 and a second end 102, with a water inlet 4 located at the first end 101. A limiting part 103 is also provided on the first end 101, and the limiting part 103 is connected to the body 10. By providing the limiting part 103 on the first end 101 of the water inlet body 1, the limiting part 103 can be connected to the body 10 to position the water jet, improving the installation accuracy of the water jet and thus enhancing its operational stability.

[0063] Specifically, the limiting part 103 can be a pin, which is fixed to the outer wall of the first end 101. The body 10 is provided with a mounting groove corresponding to the pin. The pin is inserted into the mounting groove to limit the water jet.

[0064] Furthermore, in one embodiment, such as Figure 3 and Figure 5 As shown, the water jet also includes a sealing plug 11. The second end 102 has a through hole communicating with the first chamber 2. One end of the sealing plug 11 is detachably sealed to the through hole, and the other end is connected to the body 10. When the water jet needs maintenance, the sealing plug 11 is removed to allow for maintenance of the interior of the water inlet body 1.

[0065] It should be noted that this utility model embodiment does not restrict the detachable connection between the sealing plug 11 and the through hole. Any existing connection structure can be selected as needed. For example, one end of the sealing plug 11 is provided with an external thread, and the through hole is provided with an internal thread, and the sealing end is threadedly connected to the through hole.

[0066] In one embodiment, such as Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, multiple support portions 501 extending along the width direction are respectively provided on opposite sides of the water outlet body 5. A transport mechanism 12 is provided on the body 10, which includes multiple spaced rollers 1201. Multiple rollers 1202 are spaced on each roller 1201, and the support portions 501 are disposed in the gaps between adjacent rollers 1202 to support the substrate. The support portions 501 are positioned in the gaps between adjacent rollers 1202, allowing them to support the substrate together with the rollers 1202. This facilitates stable processing of thinner substrates and prevents the substrate from bending or falling due to the force of the water jet without effective support.

[0067] Specifically, the support 501 can be a butterfly wing, with corresponding butterfly wings on opposite sides of the water outlet body 5. The width direction of the water outlet body 5 is as follows: Figure 1 As indicated by the arrow W in the diagram.

[0068] To achieve the basic functions of the printed circuit board (PCB) processing machinery, the PCB processing machinery in this embodiment may also include other necessary modules or components, such as a control system and a water inlet system. It should be noted that any suitable existing structure can be selected from the other necessary modules or components included in the PCB processing machinery. To clearly and concisely illustrate the technical solution provided in this embodiment, the above-mentioned parts will not be repeated here, and the accompanying drawings have also been simplified accordingly. However, it should be understood that the scope of this utility model is not limited thereto.

[0069] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A water jet, characterized in that, include: The water inlet body (1) has a first chamber (2) and a reinforcing rib (3) spaced apart inside. One end of the water inlet body (1) is provided with a water inlet (4) that communicates with the first chamber (2). The cross-sectional area of ​​the first chamber (2) is smaller than the cross-sectional area of ​​the water inlet (4). The water outlet body (5) is connected to the water inlet body (1). The water outlet body (5) is provided with a second chamber (6). The first chamber (2) is connected to the second chamber (6) through multiple diversion holes (7). The cross-sectional area of ​​the second chamber (6) is smaller than the cross-sectional area of ​​the first chamber (2). The side of the water outlet body (5) away from the water inlet body (1) is provided with multiple water outlet holes (8) at intervals. The multiple water outlet holes (8) are respectively connected to the second chamber (6).

2. The water jet according to claim 1, characterized in that, The first chamber (2) is located on the side of the water inlet body (1) close to the second chamber (6), and the reinforcing rib (3) is a steel bar, which is built into the side of the water inlet body (1) away from the second chamber (6).

3. The waterjet cutter according to claim 1 or 2, characterized in that, The inlet body (1) is cylindrical, and the outlet body (5) is elongated.

4. The waterjet cutter according to claim 3, characterized in that, Multiple diversion holes (7) are spaced apart along the axial direction of the water inlet body (1).

5. The waterjet cutter according to claim 3, characterized in that, The water outlet body (5) has a water outlet surface away from the water inlet body (1), and a plurality of water outlet holes (8) are arranged in a row on the water outlet surface.

6. The water jet according to claim 1, characterized in that, A filter screen (9) extending into the first chamber (2) is provided at the water inlet (4).

7. A printed circuit board manufacturing machine, characterized in that, include: Body (10); The water jet according to any one of claims 1 to 6, wherein the water inlet body (1) is disposed on the body (10).

8. The printed circuit board processing machinery according to claim 7, characterized in that, The water inlet body (1) has a first end (101) and a second end (102) opposite to each other. The water inlet (4) is located at the first end (101). A limiting part (103) is also provided on the first end (101). The limiting part (103) is connected to the body (10).

9. The printed circuit board processing machinery according to claim 8, characterized in that, The water jet also includes a sealing plug (11), the second end (102) is provided with a through hole communicating with the first chamber (2), one end of the sealing plug (11) is detachably sealed to the through hole, and the other end is connected to the body (10).

10. The printed circuit board manufacturing machine according to any one of claims 7 to 9, characterized in that, The water outlet body (5) has multiple support parts (501) extending in the width direction at intervals on its opposite sides. The body (10) is provided with a transport mechanism (12), which includes a plurality of spaced rollers (1201), each roller (1201) is provided with a plurality of rollers (1202) spaced apart, and the support part (501) is provided in the gap between adjacent rollers (1202) for supporting the substrate.

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