Vibrating knife rest, scraper assembly and printing equipment

Abstract

The utility model relates to the technical field of solder paste printing, and particularly discloses a vibration knife rest, a scraper assembly and a printing device, the vibration knife rest comprises a knife rest body, and a plurality of containing grooves are formed in one side of the knife rest body; and each vibration device is located in the corresponding containing groove and used for driving the tool rest body to vibrate. According to the vibrating knife rest, the scraper assembly and the printing equipment, the problem that thick solder paste is difficult to scrape and smear evenly through an existing scraper assembly can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of solder paste printing, in particular to a vibrating knife holder, a scraper assembly and printing equipment. Background Art

[0002] Solder paste printing equipment is mainly used in the surface mount technology (SMT) process in the electronics manufacturing industry to accurately print solder paste onto the pads of the PCB (printed circuit board). The solder paste is used for soldering with subsequent patch components.

[0003] Generally, solder paste printing equipment includes an automatic soldering mechanism for providing solder paste to the PCB, and a scraper assembly for evenly scraping the solder paste sprayed by the automatic soldering mechanism. In actual production, it is found that when the thickness of the solder paste is small, the resistance of the solder paste is small, and the scraper assembly can easily scrape the solder paste evenly. However, when the thickness of the solder paste is large, the resistance of the solder paste is large, and the scraper assembly often has difficulty in scraping the solder paste evenly, and it is even easy to get stuck.

[0004] Therefore, it is necessary to improve the existing scraper assembly to solve the problem that it is difficult to evenly scrape thicker solder paste.

[0005] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Utility Model Content

[0006] One purpose of the utility model is to provide a vibrating knife holder, a scraper assembly and a printing device, which can effectively solve the problem that the existing scraper assembly is difficult to evenly scrape thick solder paste.

[0007] To achieve the above objectives, on the one hand, the utility model provides a vibrating tool holder, comprising:

[0008] A tool holder body, wherein one side of the tool holder body is provided with a plurality of accommodating grooves;

[0009] A plurality of vibration components, each of which is located in one of the accommodating grooves and is used to drive the tool holder body to vibrate.

[0010] Optionally, the vibration device is fixed to the bottom of the accommodating groove, and a sealing member is provided at the notch of the accommodating groove.

[0011] Optionally, the sealing member is a filling rubber block which is made by a glue pouring process and is fixed at the slot position.

[0012] Optionally, the seal and the tool holder body are a detachable sealing connection structure.

[0013] Optionally, the sealing member is connected to the notch position by a plug-in interference fit; or, the sealing member is connected to the notch position by a threaded sealing connection.

[0014] Optionally, a control device is provided outside the tool holder body, and the control device is electrically connected to each of the vibration devices through a wiring harness;

[0015] Wherein, a wire passing groove connected to each of the accommodating grooves is provided inside the tool holder body, and the wire harness extends into each of the accommodating grooves through the wire passing groove.

[0016] Optionally, one end of the wiring harness extending into the accommodating groove is electrically connected to the corresponding vibration device through a quick-plug terminal assembly.

[0017] Optionally, a plurality of fastening holes for installing and fixing the scraper body are provided on the other side of the blade holder body.

[0018] On the other hand, a scraper assembly is provided, comprising the vibrating blade frame and a scraper body mounted and fixed on the vibrating blade frame.

[0019] On the other hand, a printing device is provided, comprising an automatic tinning mechanism and the scraper assembly.

[0020] The beneficial effects of the utility model are: providing a vibrating knife holder, a scraper assembly and a printing device, wherein a receiving groove is arranged on one side of the knife holder body, and a scraper body is installed on the other side, and then a vibrating device is installed in the receiving groove. When performing a scraping operation, after the automatic tinning mechanism sprays out the solder paste, the vibrating device drives the knife holder body to vibrate, so that the scraper body vibrates and scrapes the paste at the same time, so that the solder paste with a larger thickness can be scraped evenly.

[0021] Therefore, the vibrating blade holder, scraper assembly and printing equipment provided by the utility model can effectively solve the problem that the existing scraper assembly is difficult to evenly scrape thick solder paste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic diagram of the structure of a scraper assembly provided in an embodiment;

[0024] Figure 2 A schematic diagram of the structure of a vibrating tool holder provided in an embodiment;

[0025] Figure 3 This is a schematic structural diagram of a tool holder body provided in an embodiment.

[0026] In the figure:

[0027] 1. Vibrating tool holder;

[0028] 101, tool holder body; 1011, receiving groove; 1012, fastening hole; 1013, wire groove;

[0029] 102. Vibration device;

[0030] 103. Seals;

[0031] 104. Wiring harness;

[0032] 105. Quick-plug terminal assembly;

[0033] 106. Control device;

[0034] 2. Scraper body. DETAILED DESCRIPTION

[0035] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present utility model, it is to be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centrally arranged component at the same time.

[0037] In addition, terms such as "long", "short", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or component referred to must have this specific direction or operate with a specific direction structure, and should not be understood as a limitation of the present invention.

[0038] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0039] The utility model provides a vibrating knife holder, a scraper assembly and a printing device, which are suitable for the application scenario of printing solder paste on the pad of a PCB, and can effectively solve the problem that the existing scraper assembly is difficult to evenly scrape thick solder paste.

[0040] The printing device provided in this embodiment includes an automatic tin-adding mechanism for providing solder paste, and a scraper assembly for scraping the solder paste.

[0041] See also Figure 1 The scraper assembly includes a vibrating blade frame 1 and a scraper body 2 installed and fixed on the vibrating blade frame 1.

[0042] Specifically, see Figure 2 The vibrating tool holder 1 comprises a tool holder body 101 and a plurality of vibrating components 102. Figure 3 A plurality of accommodating grooves 1011 are provided on one side of the tool holder body 101, and each of the vibrating devices 102 is located in one of the accommodating grooves 1011, and is used to drive the tool holder body 101 to vibrate; a plurality of fastening holes 1012 for installing and fixing the scraper body 2 are provided on the other side of the tool holder body 101, and the scraper body 2 is installed and fixed to the fastening holes 1012 by fasteners, thereby completing the assembly operation of the scraper body 2 and the tool holder body 101.

[0043] Optionally, the vibration device 102 may be an ultrasonic vibrator, a motor vibrator, or an electromagnetic vibrator, etc. The utility model does not limit the specific structure of the vibration device 102 .

[0044] The vibrating blade holder 1, scraper assembly, and printing equipment provided in this embodiment are provided with a receiving groove 1011 on one side of the blade holder body 101, and a scraper body 2 is installed on the other side, and then the vibration device 102 is installed in the receiving groove 1011. When performing the scraping operation, after the automatic tinning mechanism sprays out the solder paste, the vibration device 102 drives the blade holder body 101 to vibrate, so that the scraper body 2 vibrates and scrapes the paste at the same time, so that the thick solder paste can be scraped evenly.

[0045] Therefore, the vibrating blade holder 1, scraper assembly, and printing equipment provided in this embodiment can effectively solve the problem that the existing scraper assembly is difficult to evenly scrape thick solder paste.

[0046] In this embodiment, the vibration device 102 is fixed to the bottom of the receiving groove 1011, and a sealing member 103 is provided at the notch of the receiving groove 1011. The sealing member 103 can cover the notch of the receiving groove 1011 to prevent foreign matter such as oil, water, and steam from entering the receiving groove 1011 and damaging the vibration device 102.

[0047] In this embodiment, the seal 103 and the tool holder body 101 are detachably sealed and connected. Specifically, the seal 103 is connected to the slot position by plug-in interference fit; or, the seal 103 is connected to the slot position by threaded sealing.

[0048] It is understandable that the plug-in connection or threaded connection makes it easy to remove the sealing member 103 from the slot position, thereby performing maintenance on the vibration device 102 .

[0049] Optionally, a control device 106 is provided outside the tool holder body 101, and the control device 106 is electrically connected to each of the vibration devices 102 through a wire harness 104; wherein, a wire groove 1013 is provided inside the tool holder body 101 to connect each of the accommodating grooves 1011, and the wire harness 104 extends into each of the accommodating grooves 1011 through the wire groove 1013. In this embodiment, the wire harness 104 is an aviation plug wire.

[0050] Furthermore, one end of the wire harness 104 extending into the accommodating groove 1011 is electrically connected to the corresponding vibration device 102 through a quick-plug terminal assembly 105 .

[0051] For example, one end of the wire harness 104 extending into the accommodating groove 1011 is connected to the female end of the quick-plug terminal assembly 105 , and the vibration device 102 is connected to the male end of the quick-plug terminal assembly 105 .

[0052] Specifically, after removing the seal 103 from the slot position, the male end of the quick-plug terminal assembly 105 is pulled out from the female end of the quick-plug terminal assembly 105, so as to release the connection between the vibration device 102 and the wiring harness 104, and then remove the vibration device 102 from the accommodating groove 1011 so as to inspect or replace the vibration device 102.

[0053] Of course, in some other embodiments, when the convenience of maintenance of the vibration device 102 is not considered, the sealing member 103 can also be a filling rubber block fixed at the notch position by a glue pouring process. That is, after the vibration device 102 is placed in the receiving groove 1011 and connected to the wiring harness 104, the receiving groove 1011 can be filled with glue for sealing. The present invention does not limit the sealing form of the receiving groove 1011.

[0054] In summary, the vibrating blade holder 1, the scraper assembly, and the printing device provided in this embodiment have the following advantages:

[0055] ① The vibration device 102 is installed in the receiving groove 1011. When performing the scraping operation, the vibration device 102 drives the tool holder body 101 to vibrate, so that the scraper body 2 scrapes the paste while vibrating, so that the thick solder paste can be scraped evenly;

[0056] ② The notch of the accommodating groove 1011 is blocked by a detachable sealing member 103, and then the vibration device 102 and the wiring harness 104 are connected by a quick-release terminal assembly, so that the vibration device 102 can be taken out for maintenance without disassembling the tool holder body 101;

[0057] ③ If there are special process requirements, for example, when the steel mesh is capillary, the vibration effect of the vibrating tool holder 1 provided in this embodiment can be used, combined with the extrusion force of the scraper body 2, so that the medium such as solder paste can be tinned more evenly and effectively, so that the solder paste can be well adhered to the product (PCB) and help the product demolding.

[0058] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0059] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A vibrating tool holder, characterized in that: include: A tool holder body (101), wherein one side of the tool holder body (101) is provided with a plurality of accommodating grooves (1011); A plurality of vibration devices (102), each of the vibration devices (102) being located in one of the accommodating grooves (1011) and used for driving the tool holder body (101) to vibrate.

2. The vibrating tool holder according to claim 1, characterized in that: The vibration device (102) is fixed at the bottom of the accommodating groove (1011), and a sealing member (103) is provided at the notch of the accommodating groove (1011).

3. The vibrating tool holder according to claim 2, characterized in that: The sealing member (103) is a filling rubber block which is made by a glue pouring process and is fixed at the slot position.

4. The vibrating tool holder according to claim 2, characterized in that: The sealing member (103) and the tool holder body (101) are a detachable sealing connection structure.

5. The vibrating tool holder according to claim 4, characterized in that: The sealing member (103) is connected to the slot position by means of a plug-in interference fit; or, the sealing member (103) is connected to the slot position by means of a threaded sealing connection.

6. The vibrating tool holder according to claim 1, characterized in that: A control device (106) is provided outside the tool holder body (101), and the control device (106) is electrically connected to each of the vibration devices (102) via a wire harness (104); Wherein, a wire passing groove (1013) communicating with each of the accommodating grooves (1011) is provided inside the tool holder body (101), and the wire harness (104) extends into each of the accommodating grooves (1011) through the wire passing groove (1013).

7. The vibrating tool holder according to claim 6, characterized in that: One end of the wire harness (104) extending into the accommodating groove (1011) is electrically connected to the corresponding vibration device (102) via a quick-plug terminal assembly (105).

8. The vibrating tool holder according to claim 1, characterized in that: The other side of the blade holder body (101) is provided with a plurality of fastening holes (1012) for installing and fixing the scraper body (2).

9. A scraper assembly, characterized in that: It comprises a vibrating blade holder (1) as claimed in any one of claims 1 to 8 and a scraper body (2) mounted and fixed on the vibrating blade holder (1).

10. A printing device, characterized in that: It comprises an automatic tinning mechanism and the scraper assembly as claimed in claim 9.

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