Board dividing machine and elastic brush head thereof

Abstract

The utility model relates to a board dividing machine and an elastic brush head thereof, and the elastic brush head comprises a shell, a sliding frame, a milling cutter frame and an elastic element, a cavity is formed in the shell, the milling cutter frame is arranged in the cavity, the milling cutter frame is fixedly connected with the side wall of the cavity, and the milling cutter frame is used for installing a milling cutter; the sliding frame is slidably arranged in the cavity, a through hole is formed in the middle of the sliding frame, the milling cutter frame is located in the through hole, one end of the elastic element is connected with the sliding frame, the other end of the elastic element is connected with the shell or the milling cutter frame, and the end, away from the elastic element, of the sliding frame is used for installing bristles. The elastic brush head provided by the utility model can be matched with a milling cutter to cut the PCB in a multi-section manner, meanwhile, the abrasion of the brush bristles can be reduced, and when an external dust collection device collects dust, the completeness of the brush bristles can be kept, and the gas leakage can be reduced, so that dust generated by cutting can be quickly and sufficiently sucked away, the dust is prevented from influencing the cutting of the milling cutter on the PCB, and the service life of the milling cutter is prolonged. And the yield of the cut PCBs is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brush heads of board splitters, in particular to a board splitter and an elastic brush head thereof. Background Art

[0002] The board splitter is an important device in the PCB (Printed Circuit Board) processing process. It is mainly used to cut the PCB board and clean the surface during cutting. That is, when cutting the PCB board, the debris generated after cutting must be cleaned to ensure that the surface of the cut PCB board remains clean.

[0003] The brush head of the existing board splitter is usually fixed and cannot be moved. The fixed brush head can only be used with the milling cutter to cut in two sections. The length of each section is 1.2 mm, so the maximum blade length of the milling cutter is 2.4 mm. The blade length of the milling cutter is usually 7 mm, so the blade of the milling cutter cannot be fully used for cutting, resulting in waste of the milling cutter. At the same time, the bristles on the fixed brush head are easy to wear. After the bristles are worn, the gas leaks seriously when the external dust suction device sucks air, which causes the dust generated during cutting to not be sucked away in time and effectively, thereby affecting the milling cutter's cutting of the PCB board, resulting in a high defective rate of the cut PCB board. Utility Model Content

[0004] Based on this, it is necessary to provide a plate separator and an elastic brush head thereof.

[0005] The utility model solves the above-mentioned technical problem with a technical solution as follows: an elastic bristle brush head, comprising: a shell, a slide, a milling cutter holder and an elastic element; a cavity is provided in the shell, the milling cutter holder is arranged in the cavity, the milling cutter holder is fixedly connected to the side wall of the cavity, and the milling cutter holder is used to install a milling cutter; the slide is slidably arranged in the cavity, a through hole is provided in the middle of the slide, the milling cutter holder is located in the through hole, one end of the elastic element is connected to the slide, the other end of the elastic element is connected to the shell or the milling cutter holder, and the end of the slide away from the elastic element is used to install bristles.

[0006] In one embodiment, a limit block is disposed on the side wall of the cavity, a limit hole is provided on the slide, and the limit block is at least partially slidably disposed in the limit hole.

[0007] In one embodiment, two limit blocks are provided, and the two limit blocks are respectively provided on two opposite side walls of the cavity, and the limit holes are respectively opened on the two opposite side walls of the slide, and each limit block is at least partially slidably provided in one limit hole.

[0008] In one embodiment, a plurality of mounting blocks are protruding from the side walls of the through hole of the slide.

[0009] In one embodiment, a mounting hole is provided on the slide, the mounting hole is communicated with the through hole, a thread is provided on the side wall of the mounting hole, a fixing bolt is threadedly provided in the mounting hole, and the fixing bolt is used to fix the bristles on the slide.

[0010] In one embodiment, a groove is formed on the shell, the mounting hole is aligned with and connected to the groove, and a portion of the fixing bolt protruding from the mounting hole is located in the groove.

[0011] In one embodiment, a first fixing hole is formed on the slide, a second fixing hole is formed on the housing or the milling cutter holder, one end of the elastic element is arranged in the first fixing hole, and the other end of the elastic element is arranged in the second fixing hole.

[0012] In one embodiment, the elastic element is a compression spring or a torsion spring.

[0013] In one embodiment, a first dust suction port is opened on one side of the shell, and a second dust suction port is opened on one side of the slide frame. The first dust suction port, the cavity, the second dust suction port and the through hole are connected in sequence, and the first dust suction port is used to connect to a dust suction pipe of an external dust suction device.

[0014] A board separator comprises the elastic brush head described in any one of the above embodiments.

[0015] The beneficial effects of the utility model are as follows: the utility model provides an elastic brush head, comprising a shell, a slide, a milling cutter holder and an elastic element; the milling cutter holder is fixedly arranged in the shell, and the milling cutter holder is used to fix and install the milling cutter. By sleeve-arranging the slide on the milling cutter holder, and the slide is slidably arranged in the cavity of the shell, the slide can be slidably arranged relative to the milling cutter holder and the shell; and one end of the slide is used to install the bristles, and the other end of the slide is connected to the elastic element. Therefore, the slide can drive the bristles to slide relative to the milling cutter holder and the shell in the cavity, and the slidable bristles can cooperate with the milling cutter on the milling cutter holder to perform multi-stage feed to cut the PCB board, so that the milling cutter can be fully utilized. Through the above-mentioned arrangement, the bristles can be telescopically slid during the cutting process, which can reduce the wear of the bristles and make the bristles more durable. At the same time, an elastic element is provided at one end of the slide away from the bristles, and the elastic force of the elastic element can make the bristles close to the PCB board, and when the external dust suction device is suctioning, gas leakage can be reduced, so that the dust generated by cutting can be quickly and fully sucked away, thereby preventing the dust from affecting the cutting of the PCB board by the milling cutter, and improving the yield rate of cutting the PCB board. The elastic brush head provided by the utility model can cooperate with the milling cutter to perform multi-stage cutting of the PCB board, and at the same time can reduce the wear of the bristles. When the external dust suction device is suctioning, keeping the bristles intact can reduce gas leakage, so that the dust generated by cutting can be quickly and fully sucked away, thereby preventing the dust from affecting the cutting of the PCB board by the milling cutter, and improving the yield rate of cutting the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of an elastic brush head in one direction according to an embodiment;

[0018] Figure 2 It is a schematic diagram of the three-dimensional exploded structure of an elastic brush head in one direction according to an embodiment;

[0019] Figure 3 The figure is a schematic diagram of the three-dimensional exploded structure of the elastic brush head of one embodiment in another direction.

[0020] In the accompanying drawings, 10, elastic brush head; 100, shell; 110, cavity; 120, limit block; 130, groove; 140, first dust suction port; 200, slide; 210, through hole; 220, limit hole; 230, mounting block; 240, mounting hole; 250, first fixing hole; 260, second dust suction port; 300, milling cutter holder; 310, second fixing hole; 400, elastic element. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.

[0022] It should be understood that the same or similar numbers in the drawings of the embodiments correspond to the same or similar parts. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] In one embodiment, Figure 1 , Figure 2 and Figure 3 As shown, an elastic brush head 10 includes: a shell 100, a slide 200, a milling cutter holder 300 and an elastic element 400; a cavity 110 is opened in the shell 100, the milling cutter holder 300 is arranged in the cavity 110, the milling cutter holder 300 is fixedly connected to the side wall of the cavity 110, and the milling cutter holder 300 is used to install a milling cutter; the slide 200 is slidably arranged in the cavity 110, the middle part of the slide 200 has a through hole 210, the milling cutter holder 300 is located in the through hole 210, one end of the elastic element 400 is connected to the slide 200, and the other end of the elastic element 400 is connected to the shell 100 or the milling cutter holder 300, and the end of the slide 200 away from the elastic element 400 is used for installing bristles.

[0024] Specifically, the milling cutter holder 300 is fixedly arranged in the housing 100, and the milling cutter holder 300 is used to fix and install the milling cutter. By sleeve-arranging the slide 200 on the milling cutter holder 300, and the slide 200 is slidably arranged in the cavity 110 of the housing 100, the slide 200 can be slidably arranged relative to the milling cutter holder 300 and the housing 100; and one end of the slide 200 is used to install the bristles, and the other end of the slide 200 is connected to the elastic element 400. Therefore, the slide 200 can drive the bristles to slide relative to the milling cutter holder 300 and the housing 100 in the cavity 110, and the slidable bristles can cooperate with the milling cutter on the milling cutter holder 300 to perform multi-stage feed to cut the PCB board, so that the milling cutter can be fully utilized. Through the above arrangement, the bristles can be telescopically slidable during the cutting process, which can reduce the wear of the bristles and make the bristles more durable. At the same time, the elastic element 400 is arranged at the end of the slide 200 away from the bristles. The elastic force of the elastic element 400 can make the bristles close to the PCB board. When the external dust suction device is vacuuming, gas leakage can be reduced, so that the dust generated by the cutting can be quickly and fully sucked away, thereby preventing the dust from affecting the cutting of the PCB board by the milling cutter and improving the yield rate of the cut PCB board.

[0025] In one embodiment, the outer side of the slide 200 abuts against the side wall of the cavity 110. This arrangement ensures that the sliding track of the slide 200 is always along the side wall of the cavity 110, thereby preventing the slide 200 from deviating during the sliding process.

[0026] In order to limit the sliding distance of the slide 200 in the cavity 110, in one embodiment, Figure 1 and Figure 2 As shown, a limiting block 120 is provided on the side wall of the cavity 110, and a limiting hole 220 is provided on the slide 200, and the limiting block 120 is at least partially slidably disposed in the limiting hole 220. Specifically, the limiting hole 220 is a waist-shaped hole, and the limiting block 120 slides in the limiting hole 220. When the slide 200 slides in the cavity 110, the limiting block 120 slides in the limiting hole 220. When the limiting block 120 slides to abut against the two ends of the waist-shaped limiting hole 220, the slide 200 will not be able to slide, that is, the sliding distance of the slide 200 in the cavity 110 is the width of the limiting hole 220. Through the above arrangement, the sliding distance of the slide 200 in the cavity 110 can be limited.

[0027] In order to further limit the sliding distance of the slide 200 in the cavity 110, in one embodiment, two limit blocks 120 are provided, and the two limit blocks 120 are respectively provided on two oppositely disposed side walls of the cavity 110, and the two oppositely disposed side walls of the slide 200 are respectively provided with the limit holes 220, and each limit block 120 is at least partially slidably provided in one of the limit holes 220. Specifically, the two limit blocks 120 are arranged in alignment, and the two limit holes 220 are opened in alignment. At the same time, the shapes and sizes of the two limit holes 220 are the same, and the two limit holes 220 are waist-shaped holes. When the slide 200 slides in the cavity 110, the two limit blocks 120 are respectively located on both sides of the slide 200 and slide, and the two limit blocks 120 have the same function as the limit blocks 120 in the previous embodiment, and play the role of limiting the sliding distance of the slide 200 in the cavity 110. In this embodiment, by providing two limit blocks 120 for sliding, the sliding distance of the slide 200 in the cavity 110 can be further limited, and the slide 200 can slide more smoothly in the cavity 110 .

[0028] In order to determine the installation position of the bristles on the slide 200, in one embodiment, Figure 1 and Figure 2 As shown, a plurality of mounting blocks 230 are provided on the side wall of the through hole 210 of the slide 200. Specifically, each mounting block 230 is provided on the same plane, and each slider is provided at equal intervals, and each mounting block 230 is used to determine the installation position of the bristles. By abutting one end of the bristles against one side of the mounting block 230, the installation position of the bristles on the slide 200 can be determined, and then the bristles can be fixedly installed on the slide 200.

[0029] In this embodiment, each of the mounting blocks 230 is disposed on the side wall of the through hole 210. Specifically, by disposing each of the mounting blocks 230 on the side wall of the through hole 210, the bristles can be only partially fixed in the through hole 210, so that the bristles can be more firmly mounted on the slide 200, and at the same time, the bristles can be tightly connected to a side opening of the through hole 210, thereby preventing air leakage when the external dust suction device sucks air.

[0030] In order to fix the bristles on the slide 200, in one embodiment, Figure 1 and Figure 2As shown, the carriage 200 is provided with a mounting hole 240, the mounting hole 240 is communicated with the through hole 210, the side wall of the mounting hole 240 is provided with a thread, a fixing bolt (not shown) is screwed in the mounting hole 240, and the fixing bolt is used to fix the bristles on the carriage 200. Specifically, by using a bolt to pass through the brush and then screwed in the mounting hole 240, the brush can be stably mounted on the carriage 200. Since the brush is fixed by bolt connection, it is also convenient to remove the brush from the carriage 200.

[0031] In one embodiment, Figure 1 and Figure 2 As shown, a groove 130 is provided on the housing 100, and the mounting hole 240 is aligned with and connected to the groove 130, and the portion of the fixing bolt protruding from the mounting hole 240 is located in the groove 130. Specifically, the groove 130 is used to accommodate the portion of the fixing bolt protruding from the mounting hole 240. Since the thickness of bristles of different sizes is different, in order to be able to fix different bristles on the slide 200, the length of the selected fixing bolt is relatively long. When the fixing bolt is screwed into the mounting hole 240, a portion of it will protrude out of the mounting hole 240. By providing the groove 130 on the housing 100, the portion of the fixing bolt protruding from the mounting hole 240 can have a certain amount of space for movement.

[0032] In order to stably arrange the elastic element 400 in the cavity 110, in one embodiment, as shown in FIG. Figure 2 and Figure 3 As shown, the slide 200 is provided with a first fixing hole 250, the housing 100 or the milling cutter holder 300 is provided with a second fixing hole 310, one end of the elastic element 400 is arranged in the first fixing hole 250, and the other end of the elastic element 400 is arranged in the second fixing hole 310. Specifically, by arranging one end of the elastic element 400 in the first fixing hole 250 and the other end of the elastic element 400 in the second fixing hole 310, the elastic element 400 can be prevented from being deflected in the cavity 110 due to its own excessive elastic force, so that the elastic element 400 is stably arranged in the cavity 110.

[0033] In this embodiment, the second fixing hole 310 is formed on the milling cutter holder 300 , and the milling cutter holder 300 is fixedly disposed in the cavity 110 .

[0034] In one embodiment, the elastic element 400 is a compression spring or a torsion spring. Specifically, the compression spring and the torsion spring both have certain elastic force, and are durable and low in cost. Therefore, the elastic element 400 is a compression spring or a torsion spring, which can provide elastic force for the slide 200 when the bristles on the slide 200 contact the PCB board, so that the bristles on the slide 200 can closely contact the PCB board.

[0035] In order to be able to suck away the dust generated by the milling cutter during cutting, in one embodiment, Figure 1 and Figure 2 As shown, a first dust suction port 140 is provided on one side of the housing 100, and a second dust suction port 260 is provided on one side of the slide 200. The first dust suction port 140, the cavity 110, the second dust suction port 260 and the through hole 210 are connected in sequence, and the first dust suction port 140 is used to connect with the dust suction pipe of an external dust suction device. Specifically, the caliber of the second dust suction port 260 is larger than the caliber of the first dust suction port 140. Therefore, when the slide 200 slides in the cavity 110, the second dust suction port 260 can always maintain communication with the first dust suction port 140. By connecting an external dust suction device to the first dust suction port 140, the external dust suction device can suck away the dust generated when the milling cutter cuts the PCB board through the second dust suction port 260 and the first dust suction port 140, thereby ensuring the cleanliness of the surface of the PCB board.

[0036] In one embodiment, the housing 100 is provided with four screw holes around the first dust suction port 140. Specifically, the four screw holes are distributed around the first dust suction port 140, and the four screw holes are respectively distributed at four corners close to the first dust suction port 140. The mounting screw holes are used to fix and install an external dust suction pipe. Through the above arrangement, the dust suction pipe can be firmly mounted on the housing 100 by bolts.

[0037] A board splitter includes the elastic brush head 10 described in any one of the above embodiments. Specifically, the board splitter can cooperate with a milling cutter to perform multi-stage cutting of PCB boards by installing the elastic brush head 10 provided by the present application, and can also reduce the wear of the bristles. When the external dust suction device is vacuuming, keeping the bristles intact can reduce gas leakage, so that the dust generated by the cutting can be quickly and fully sucked away, preventing the dust from affecting the cutting of the PCB board by the milling cutter, and improving the yield rate of the cut PCB board.

[0038] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An elastic brush head, characterized in that: include: Housing, slide, milling cutter holder and elastic element; A cavity is provided in the shell, the milling cutter holder is arranged in the cavity, the milling cutter holder is fixedly connected to the side wall of the cavity, and the milling cutter holder is used to install a milling cutter; The slide is slidably arranged in the cavity, a through hole is provided in the middle of the slide, the milling cutter holder is located in the through hole, one end of the elastic element is connected to the slide, the other end of the elastic element is connected to the shell or the milling cutter holder, and the end of the slide away from the elastic element is used for installing bristles.

2. The elastic brush head according to claim 1, characterized in that: A limit block is arranged on the side wall of the cavity, a limit hole is provided on the slide, and the limit block is at least partially slidably arranged in the limit hole.

3. The elastic brush head according to claim 2, characterized in that: There are two limit blocks, and the two limit blocks are respectively arranged on two opposite side walls of the cavity. The two opposite side walls of the slide are respectively provided with limit holes, and each limit block is at least partially slidably arranged in one limit hole.

4. The elastic brush head according to claim 1, characterized in that: A plurality of mounting blocks are protrudingly arranged on the side wall of the through hole of the slide.

5. The elastic brush head according to claim 1, characterized in that: The slide is provided with a mounting hole, the mounting hole is communicated with the through hole, a side wall of the mounting hole is provided with a thread, a fixing bolt is threadedly provided in the mounting hole, and the fixing bolt is used to fix the bristles on the slide.

6. The elastic brush head according to claim 5, characterized in that: The housing is provided with a groove, the mounting hole is aligned with and communicated with the groove, and a portion of the fixing bolt protruding from the mounting hole is located in the groove.

7. The elastic brush head according to claim 1, characterized in that: The slide is provided with a first fixing hole, the housing or the milling cutter holder is provided with a second fixing hole, one end of the elastic element is arranged in the first fixing hole, and the other end of the elastic element is arranged in the second fixing hole.

8. The elastic brush head according to claim 1, characterized in that: The elastic element is a compression spring or a torsion spring.

9. The elastic brush head according to any one of claims 1 to 8, characterized in that: A first dust suction port is provided on one side of the shell, a second dust suction port is provided on one side of the slide, the first dust suction port, the cavity, the second dust suction port and the through hole are connected in sequence, and the first dust suction port is used to connect to a dust suction pipe of an external dust suction device.

10. A board splitting machine, characterized in that: The invention comprises the elastic brush head according to any one of claims 1 to 9.

Images