Scraper structure of solder paste printing machine

Abstract

The utility model relates to the technical field of automatic solder paste printing, in particular to a scraper structure of a solder paste printing machine, which comprises a supporting piece, a scraper blade and a scraper blade, the first sliding part is provided with a first guide hole matched with the guide column and is arranged on one side of the supporting part in a sliding mode. The elastic assembly is arranged on the side, away from the supporting piece, of the first sliding piece. The mounting part is arranged on the side, away from the first sliding part, of the elastic assembly; the scraper is arranged on the mounting piece and is used for scraping the solder paste; the adjusting part is arranged on the side, close to the first sliding part, of the mounting part; the leveling assembly is connected with the adjusting piece and the mounting piece and used for adjusting the parallelism of the adjusting piece and the mounting piece; the pressure adjusting mechanism is arranged on the supporting piece, connected with the adjusting piece and used for providing pressure for the adjusting piece. The utility model discloses a scraper structure of a solder paste printing machine, and aims to solve the problem that a scraper and a steel mesh are uneven in height in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic solder paste printing, and more specifically, to a blade structure of a solder paste printer. Background Art

[0002] A moving solder paste printer is a machine that uses a blade to print solder paste through the holes on a stencil onto the solder pads of a circuit board. The pressing force of the blade will directly affect the quality of solder paste printing.

[0003] The Chinese utility model with the publication number CN220615195U discloses a blade structure of a solder paste printer. The blade structure includes a mounting base and a blade that moves up and down along it, and also includes an electro-hydraulic proportional valve, a screw drive device, and a cylinder drive device. The screw drive device drives the entire cylinder drive device to move up and down. The electro-hydraulic proportional valve further controls the cylinder on the cylinder drive device to act. A blade is provided at the front end of the cylinder. The disclosed blade structure aims to adjust the blade force in real time. However, it is found during actual installation and use that there will be a height difference in the plane between the blade and the stencil, resulting in a phenomenon where one side of the blade contacts the stencil and there is a gap on the other side, which is likely to affect subsequent soldering. Summary of the Utility Model

[0004] The main purpose of the present utility model is to propose a blade structure of a solder paste printer, aiming to solve the problem of uneven height between the blade and the stencil in the prior art.

[0005] In order to solve the above technical problems, a blade structure of a solder paste printer is proposed, including: a support member provided with a guide post;

[0006] A first sliding member provided with a first guide hole adapted to the guide post and slidably disposed on one side of the support member;

[0007] An elastic component disposed on the side of the first sliding member away from the support member;

[0008] A mounting member disposed on the side of the elastic component away from the first sliding member;

[0009] A blade disposed on the mounting member for scraping solder paste;

[0010] An adjusting member disposed on the side of the mounting member close to the first sliding member;

[0011] A leveling component connected to the adjusting member and the mounting member for adjusting the parallelism between the adjusting member and the mounting member;

[0012] A pressure adjusting mechanism disposed on the support member and connected to the adjusting member for providing pressure to the adjusting member.

[0013] In any of the above technical solutions, further, it further includes:

[0014] A height adjustment mechanism, which is arranged on the support member and connected to the first sliding member, and is used to adjust the position of the first sliding member.

[0015] In any of the above technical solutions, further, the leveling assembly includes:

[0016] Three positive and negative adjustment assemblies, which are arranged in a triangle, and each of the positive and negative adjustment assemblies is used to provide a force for the adjusting member to approach and move away from the mounting member.

[0017] In any of the above technical solutions, further, the positive and negative adjustment assembly includes:

[0018] A first bolt, the adjusting member is provided with a first threaded hole, the first bolt is arranged in the first threaded hole, and the end face of the first bolt abuts against the mounting member;

[0019] A second bolt, the adjusting member is provided with a second threaded hole, the mounting member is provided with a through hole corresponding to the second threaded hole, and the second bolt passes through the through hole and is arranged in the second threaded hole.

[0020] In any of the above technical solutions, further, the pressure adjustment mechanism includes:

[0021] A second sliding member, which is provided with a second guiding hole adapted to the guiding column and is slidably arranged on the side of the support member away from the elastic component;

[0022] Three force transmission members, which are arranged in a triangle on the second sliding member and are used to abut against the adjusting member;

[0023] A flexible telescopic mechanism, which is arranged on the side of the second sliding member away from the support member and is used to drive the second sliding member to move.

[0024] In any of the above technical solutions, further, the flexible telescopic mechanism includes:

[0025] A fixing member, which is fixedly arranged on the guiding column;

[0026] A corrugated pipe, which is hermetically arranged between the fixing member and the second sliding member;

[0027] An air valve, which is arranged on the fixing member and is communicated with the corrugated pipe;

[0028] An air supply and suction mechanism, which is communicated with the air valve.

[0029] The beneficial effects are as follows:

[0030] 1. The blade structure of the solder paste printer of the present utility model sets the mounting member and the blade on the first sliding member through an elastic component, enabling the mounting member and the blade to be adjusted relative to the plane where the first sliding member is located; the acting force is output to the adjusting member through a pressure adjusting mechanism, and under the action of the leveling component, the mounting member can be in a state horizontal with the stencil on the circuit board, so as to evenly scrape the solder paste on the circuit board and avoid the phenomenon that one side of the blade is high and the other side is low;

[0031] 2. The setting of the pressure adjusting mechanism can also make the blade output different acting forces to the stencil, which is convenient for use. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0033] Figure 1 is a first - perspective three - dimensional structural schematic diagram of the blade structure of a solder paste printer of the present utility model;

[0034] Figure 2 is a second - perspective three - dimensional structural schematic diagram of the blade structure of a solder paste printer of the present utility model.

[0035] The description of the reference numerals is as follows:

[0036] 1. Support member; 101. Guide post;

[0037] 2. First sliding member;

[0038] 3. Elastic component;

[0039] 4. Mounting member;

[0040] 5. Blade;

[0041] 6. Adjusting member;

[0042] 7. Leveling component; 701. Positive - negative adjustment component; 702. First bolt; 703. Second bolt;

[0043] 8. Pressure adjusting mechanism; 801. Second sliding member; 802. Force - conducting member; 803. Flexible telescopic mechanism; 804. Fixed member; 805. Bellows; 806. Air valve;

[0044] 9. Height adjusting mechanism. Detailed Embodiments

[0045] Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0046] It should be noted that, as shown in the present application and the claims, unless the context clearly indicates otherwise, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0047] If there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, then the directional indications will also change accordingly.

[0048] In the present utility model, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0049] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0050] The present utility model proposes a blade structure for a solder paste printer. The height of the mounting member and the blade movably arranged under the first sliding member at different positions in the horizontal plane is mainly adjusted through a leveling component, so as to promote the uniform fitting of the blade and the stencil, and solve the problem of uneven thickness of the solder paste scraping.

[0051] The following will detail a blade structure for a solder paste printer of the present application through the following embodiments.

[0052] In this embodiment, as Figure 1 and Figure 2 shown, the blade structure of the solder paste printer includes: a support member 1 provided with a guide post 101;

[0053] A first sliding member 2 is provided with a first guide hole adapted to the guide post 101 and is slidably arranged on one side of the support member 1;

[0054] An elastic component 3 is arranged on the side of the first sliding member 2 away from the support member 1;

[0055] A mounting member 4 is arranged on the side of the elastic component 3 away from the first sliding member 2;

[0056] A blade 5 is arranged on the mounting member 4 and is used for scraping solder paste;

[0057] An adjusting member 6 is arranged on the side of the mounting member 4 close to the first sliding member 2;

[0058] A leveling component 7 is connected to the adjusting member 6 and the mounting member 4 and is used for adjusting the parallelism of the adjusting member 6 and the mounting member 4;

[0059] A pressure adjusting mechanism 8 is arranged on the support member 1 and is connected to the adjusting member 6 and is used for providing pressure to the adjusting member 6.

[0060] In this technical solution, the support member 1 is plate-shaped and horizontally arranged. Four guide posts 101 extending upward and downward are provided at the four corners of the support member 1. The first sliding member 2 is plate-shaped. Four guide holes are provided on the first sliding member 2, so that the first sliding member 2 can be placed on the lower side of the support member 1 and slide up and down. The elastic component 3 is four springs, symmetrically fixed on the bottom surface of the first sliding member 2 in the front, back, left, and right directions. The mounting member 4 is plate-shaped and fixed at the bottom ends of the four springs. The scraper 5 is fixed on the bottom surface of the mounting member 4. The adjusting member 6 is plate-shaped. The adjusting member 6 is arranged between the mounting member 4 and the first sliding member 2 through the leveling component 7. The middle of the first sliding member 2 is hollowed out. The force transmission member 802 of the pressure adjusting mechanism 8 passes through the first sliding member 2 and abuts against the top surface of the adjusting member 6. During use, the mounting member 4 is adjusted in advance through the adjusting component to neutralize the errors caused by installation or processing in the structure. Then, under the action of the pressure adjusting mechanism 8, a force is output to the scraper 5 through the adjusting member 6, the leveling component 7, and the mounting member 4, facilitating the horizontal or uniform scraping of solder paste on the stencil of the circuit board by the scraper 5.

[0061] In this embodiment, it further includes:

[0062] A height adjusting mechanism 9, arranged on the support member 1 and connected to the first sliding member 2, for adjusting the position of the first sliding member 2.

[0063] In this technical solution, the height adjusting mechanism 9 is a cylinder vertically fixed on the support member 1. The bottom end of the cylinder is fixedly connected to the first sliding member 2. The setting of the height adjusting mechanism 9 facilitates the overall adjustment of the overall height of the first sliding member 2, the elastic component 3, the mounting member 4, the scraper 5, the adjusting member 6, and the leveling component 7, facilitating the scraping of different circuit boards during use.

[0064] In this embodiment, the leveling component 7 includes:

[0065] Three sets of positive and negative adjusting components 701, which are arranged in a triangle. Each set of positive and negative adjusting components 701 is used to provide a force for the adjusting member 6 to approach and move away from the mounting member 4.

[0066] In this technical solution, the three sets of positive and negative adjusting components 701 are arranged in an equilateral triangle. The two sets of positive and negative adjusting components 701 on the left are symmetrically arranged front and back. By adjusting the parallelism of different orientations of the mounting member 4 through the three sets of positive and negative adjusting components 701, it is convenient for the scraper 5 to scrape the solder paste evenly.

[0067] In this embodiment, the positive and negative adjusting component 701 includes:

[0068] A first bolt 702. The adjusting member 6 is provided with a first threaded hole. The first bolt 702 is arranged in the first threaded hole, and the end face of the first bolt 702 abuts against the mounting member 4;

[0069] The second bolt 703, the adjusting member 6 is provided with a second threaded hole, the mounting member 4 is provided with a through hole corresponding to the second threaded hole, and the second bolt 703 is disposed through the through hole in the second threaded hole.

[0070] In this technical solution, the adjusting member 6 is provided with three first threaded holes and three second threaded holes, the mounting member 4 is provided with three through holes corresponding to the second threaded holes, the first bolt 702 is screwed in the first threaded hole, the bottom end of the first bolt 702 abuts against the top surface of the mounting member 4, and the second bolt 703 passes through the through hole and is screwed in the second threaded hole. Screwing in the first bolt 702 can cause the corresponding position of the mounting member 4 to move downward, and screwing in the second bolt 703 can cause the corresponding position of the mounting member 4 to move upward. By adjusting the first bolts 702 and the second bolts 703 of the three positive and negative adjustment assemblies 701, the parallelism of the mounting member 4 relative to the lower circuit board can be adjusted as a whole.

[0071] In this embodiment, the pressure adjusting mechanism 8 includes:

[0072] The second sliding member 801, which is provided with a second guiding hole adapted to the guiding column 101 and is slidably disposed on the side of the supporting member 1 away from the elastic component 3;

[0073] Three force transmission members 802, which are arranged in a triangle on the second sliding member 801 and are used to abut against the adjusting member 6;

[0074] The flexible telescopic mechanism 803, which is disposed on the side of the second sliding member 801 away from the supporting member 1 and is used to drive the second sliding member 801 to move.

[0075] In this technical solution, the second sliding member 801 is arranged in a plate shape, the second sliding member 801 is provided with four second guiding holes, so that the second sliding member 801 can be slidably disposed above the supporting member 1. The force transmission members 802 are arranged in a round rod shape and are vertically fixed to the lower side of the second sliding member 801. The supporting member 1 is provided with three round holes for avoiding the three force transmission members 802. The three force transmission members 802 are arranged in an equilateral triangle, and the flexible telescopic mechanism 803 is disposed above the second sliding member 801. During use, by adjusting the telescopic degree of the flexible telescopic mechanism 803, the second sliding member 801 and the three force transmission members 802 are driven to move downward, and the mounting member 4 and the squeegee 5 are extruded to move downward.

[0076] In this embodiment, the flexible telescopic mechanism 803 includes:

[0077] The fixing member 804, which is fixedly disposed on the guiding column 101;

[0078] The bellows 805, which is hermetically disposed between the fixing member 804 and the second sliding member 801;

[0079] The air valve 806 is arranged on the fixing member 804 and communicated with the corrugated pipe 805;

[0080] The air suction mechanism (not shown in the figure) is communicated with the air valve 806.

[0081] In this technical solution, the fixing member 804 is arranged in a plate shape at the top of the guide post 101. The corrugated pipe 805 is circular, and both ends are respectively sealed with the fixing member 804 and the second sliding member 801. The air valve 806 is a solenoid valve. The air valve 806 is arranged on the top surface of the fixing member 804, and the air valve 806 passes through the fixing member 804 and is communicated with the internal space of the corrugated pipe 805. The air suction mechanism (not shown in the figure) is an air pump. During use, the air valve 806 is controlled to open, and the air suction mechanism is controlled to inflate the corrugated pipe 805. With the action of the gas, the corrugated pipe 805 drives the second sliding member 801 to move downward, generates a force on the adjusting member 6, and the adjusting member 6 outputs a pressure to the mounting member 4 and the squeegee 5 through the leveling assembly 7. And because the mounting member 4 has been adjusted by the leveling assembly 7 before, finally, the bottom surface of the squeegee 5 is parallel to the stencil on the lower circuit board, so that a solder paste with a uniform thickness can be scraped on the stencil.

[0082] The embodiments of the present disclosure have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technologies in the market, or to enable other ordinary technical personnel in the technical field to understand the embodiments disclosed herein.

Claims

1. A blade structure of a solder paste printer, characterized in that, Comprising: A support member (1) provided with a guide post (101); A first sliding member (2) provided with a first guide hole adapted to the guide post (101), and slidably disposed on one side of the support member (1); An elastic component (3) disposed on the side of the first sliding member (2) away from the support member (1); A mounting member (4) disposed on the side of the elastic component (3) away from the first sliding member (2); A scraper (5) disposed on the mounting member (4) for scraping solder paste; An adjusting member (6) disposed on the mounting member (4) near the first sliding member (2); A leveling component (7) connected to the adjusting member (6) and the mounting member (4) for adjusting the parallelism between the adjusting member (6) and the mounting member (4); A pressure adjusting mechanism (8) disposed on the support member (1) and connected to the adjusting member (6) for providing pressure to the adjusting member (6).

2. The structure of the squeegee (5) of the solder paste printer according to claim 1, characterized in that, Further comprising: A height adjusting mechanism (9) disposed on the support member (1) and connected to the first sliding member (2) for adjusting the position of the first sliding member (2).

3. The structure of the squeegee (5) of the solder paste printer according to claim 1, characterized in that, The leveling component (7) includes: Three positive and negative adjusting components (701) arranged in a triangle, and each of the three positive and negative adjusting components (701) is used to provide an acting force for the adjusting member (6) to approach and move away from the mounting member (4).

4. The structure of the squeegee (5) of the solder paste printer according to claim 3, characterized in that, The positive and negative adjusting component (701) includes: A first bolt (702), the adjusting member (6) is provided with a first threaded hole, the first bolt (702) is disposed in the first threaded hole, and the end face of the first bolt (702) abuts against the mounting member (4); A second bolt (703), the adjusting member (6) is provided with a second threaded hole, the mounting member (4) is provided with a through hole corresponding to the second threaded hole, and the second bolt (703) is disposed in the second threaded hole through the through hole.

5. The structure of the squeegee (5) of the solder paste printer according to claim 1, characterized in that, The pressure adjusting mechanism (8) includes: A second sliding member (801) provided with a second guide hole adapted to the guide post (101), and slidably disposed on the side of the support member (1) away from the elastic component (3); Three force transmission members (802) arranged in a triangle on the second sliding member (801) for abutting against the adjusting member (6); A flexible telescopic mechanism (803) disposed on the side of the second sliding member (801) away from the support member (1) for driving the second sliding member (801) to move.

6. The structure of the squeegee (5) of the solder paste printer according to claim 5, characterized in that, The flexible telescopic mechanism (803) includes: A fixing member (804) fixedly disposed on the guide post (101); A bellows (805) hermetically disposed between the fixing member (804) and the second sliding member (801); A gas valve (806) disposed on the fixing member (804) and communicated with the bellows (805); An air supply and suction mechanism communicated with the gas valve (806).

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