A miniature glue spreading machine

Abstract

The application discloses a micro gluing machine, which comprises a horizontally arranged bottom plate, a partition plate arranged in the middle of the bottom plate in the width direction, limiting blocks arranged on both sides of the length direction of the partition plate, a glue outlet structure arranged between the limiting blocks and the partition plate, a certain amount of glue feeder connected to the top of the two glue outlet structures through the same shunt structure, a glue coating scraper arranged on the outlet side of the material belt of the partition plate, a height adjusting structure arranged on the top of the partition plate and connected with the glue coating scraper, and a height detection structure arranged on the top of the glue coating scraper and adjusted in contact with the glue coating scraper. The application can be applied to the glue coating of material belts with different widths. In addition, the height adjusting structure can adjust the distance between the glue coating scraper and the bottom plate, so that the glue coating thickness is adjusted. The design of the glue coating scraper can ensure the uniformity of the glue coating. Compared with the traditional glue coating process, the application has high use value.

Description

Technical Field

[0001] This invention relates to the field of adhesive coating equipment technology, and more particularly to a miniature adhesive coating machine. Background Technology

[0002] In existing technologies, the wrapping of conductive foam is generally achieved by folding and heating with hot melt adhesive. However, hot melt adhesive cannot withstand high temperatures after bonding, making it unsuitable for placement by mounting machines in the SMT industry. The new coating process first uniformly coats high-temperature resistant adhesive onto slit PI material, and then wraps it with silicone foam. Currently, this coating process generally uses a simple scraping method to apply the high-temperature resistant adhesive onto the PI material. Although this meets the coating requirements, it cannot control the uniformity or thickness of the coating. To solve the above problems, this invention discloses a miniature adhesive coating machine. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this invention discloses a miniature glue applicator.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a micro glue applicator, comprising a horizontally arranged base plate, a partition plate in the middle of the base plate in the width direction, limit blocks on both sides of the partition plate in the length direction, and a first interval adapted to the width of the material strip between the limit blocks and the partition plate, the size of the first interval being adjustable so that the limit blocks can move closer to or further away from the partition plate; a glue dispensing structure overlapping the limit blocks is provided between the limit blocks and the partition plate, and a second interval adapted to the thickness of the material strip is provided between the glue dispensing structure and the base plate; a quantitative glue feeder is connected to the top of the two glue dispensing structures through the same diversion structure; a glue applicator scraper is provided on the outlet side of the material strip on the partition plate, and the glue applicator scraper has a glue applicator head on each side of the partition plate; a third interval limiting the glue scraping thickness is provided between the glue applicator head and the base plate; a height adjustment structure is provided on the top of the partition plate and connected to the glue applicator scraper; a height detection structure is mounted on the top of the glue applicator scraper and contacts the adjustment.

[0005] Furthermore, two fixing blocks corresponding to the positions of the limiting blocks are respectively provided on both sides of the width direction of the base plate. Each limiting block has a sliding groove on both sides of its width direction. A slider is provided on the fixing block and slides in the sliding groove. When fixing the limiting block, a knob screw is screwed into the fixing block from the outside to abut against the limiting block.

[0006] Furthermore, the dispensing structure includes an overlap plate and a dispensing block. The overlap plate overlaps above the limiting block, and the dispensing block is fixed below the overlap plate, forming a figure-7 shape with the overlap plate. The diversion structure includes a diversion block, which has a vertical cavity connected to the metering dispenser, a horizontal cavity perpendicular to and connected to the vertical cavity, and two branch cavities perpendicular to and connected to the horizontal cavity. The overlap plate has a through groove communicating with one of the branch cavities. The dispensing block has a through dispensing cavity, which communicates with the through groove of the overlap plate. The bottom of the dispensing block has an inward recess, and the dispensing end of the dispensing cavity is positioned on an inclined surface of the recess.

[0007] The metering glue dispenser includes a glue storage tube and a metering air pump. The glue storage tube is connected to the vertical cavity of the distribution block through the metering air pump. The metering air pump is used to meterly dispense the glue from the glue storage tube into the distribution block.

[0008] It also includes a protective plate, which is connected to the diverter block on the feed belt inlet side. The bottom of the protective plate has two clearance grooves that are spaced one apart.

[0009] Furthermore, the adhesive scraper is designed with an inverted U-shaped structure.

[0010] Furthermore, the glue-applying blade has beveled surfaces and radius-angles on its lower sides in the width direction, which create sharp corners at the bottom of the glue-applying blade.

[0011] Furthermore, the height adjustment structure includes a compression block fixed to the adhesive scraper. Slots are provided inside the compression block on both sides in the width direction. Positioning posts are provided on the top of the partition on both sides in the width direction and inserted into the slots. Springs are respectively engaged in the two slots and pass through the positioning posts. The height of the compression block can be adjusted by compressing the two springs.

[0012] Furthermore, the height detection structure includes a truss and a digital micrometer. The truss is fixed to the base plate and its crossbeam corresponds to the adhesive scraper. The digital micrometer is adjustable and fixed on the crossbeam of the truss and its detection head passes through the crossbeam to contact the adhesive scraper.

[0013] The digital micrometer has an external thread above its measuring head, and the external thread is located below the crossbeam of the truss. When the digital micrometer is fixed to the truss, a nut is screwed onto the external thread to abut against the crossbeam.

[0014] The present invention achieves the following beneficial effects:

[0015] This invention is applicable to applying adhesive to strips of different widths. In addition, the height adjustment structure of this invention can adjust the distance between the adhesive scraper and the base plate to adjust the adhesive thickness. The design of the adhesive scraper can ensure the uniformity of adhesive application. Compared with traditional adhesive application processes, this invention has high application value.

[0016] Other features and advantages of the invention will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention can be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the disclosure of this invention and, together with the description, serve to explain the principles of this disclosure.

[0018] Figure 1 This is a schematic diagram of the overall structure disclosed in this invention;

[0019] Figure 2 This is a schematic diagram of the limiting block after it has been fixed, as disclosed in this invention;

[0020] Figure 3 This is a schematic diagram showing the connection between the quantitative glue supply structure and the glue dispensing structure disclosed in this invention.

[0021] Figure 4 This is a schematic diagram of the adhesive scraper mounting structure disclosed in this invention;

[0022] Figure 5 This is a schematic diagram of the height adjustment structure disclosed in this invention;

[0023] Figure 6 This is a schematic diagram of the explosion of the diversion structure and dispensing structure disclosed in this invention;

[0024] Figure 7 This is a schematic diagram of the height detection structure disclosed in this invention;

[0025] Figure 8 This is a schematic diagram of the protective plate structure disclosed in this invention;

[0026] In the diagram: 10. Base plate; 20. Partition plate; 30. Limiting block; 31. Slide groove; 40. Glue dispensing structure; 41. Overlap plate; 411. Through groove; 42. Glue dispensing block; 421. Recess; 422. Glue dispensing cavity; 50. Flow diversion structure; 51. Flow diversion block; 511. Vertical cavity; 512. Horizontal cavity; 513. Branch cavity; 52. Protective plate; 521. Clearance groove; 60. Metering glue dispenser; 61. Glue storage pipe; 62. Metering air pump; 70. Glue applicator; 71. Glue applicator head; 711. Bevel; 712. Radius (R-angle); 80. Height adjustment structure; 81. Positioning post; 82. Compression block; 821. Slot; 83. Spring; 90. Height detection structure; 91. Truss; 92. Digital micrometer; 921. Detection head; 922. External thread; 93. Nut; 100. Fixing block; 101. Slider; 110. Knob screw; 120. Interval 1; 130. Interval 2; 140. Interval 3. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Example

[0029] To address the limitations of existing high-temperature adhesive coating processes in ensuring coating uniformity and adjusting coating thickness, reference is made to... Figures 1-8As shown, this invention discloses a miniature adhesive applicator, comprising a horizontally arranged base plate 10, a partition 20 disposed in the middle of the base plate 10 in its width direction, and limit blocks 30 disposed on both sides of the partition 20 in its length direction. A gap 120, adapted to the width of the strip, is provided between the limit blocks 30 and the partition 20. The size of the gap 120 can be adjusted to allow the limit blocks 30 to move closer to or further away from the partition 20. When applying adhesive to different strips, only the size of the gap 120 needs to be adjusted. A glue dispensing structure 40, overlapping with the limiting block 30, is provided between the limiting block 30 and the partition plate 20. A second gap 130, adapted to the thickness of the strip, is provided between the glue dispensing structure 40 and the base plate 10, allowing the strip to pass through the second gap 130 after being coated with glue. A metering glue feeder 60 is connected to the tops of the two glue dispensing structures 40 via the same diversion structure 50. The metering glue feeder 60 dispenses glue into the diversion structure 50, and the glue entering the diversion structure 50 then flows into the glue dispensing structure 40 for dispensing. A squeegee 70 is provided on the outlet side of the strip on the plate 20. The squeegee 70 has a squeegee head 71 on each side of the plate 20. A spacer 140, defining the squeegee thickness, is provided between the squeegee head 71 and the base plate 10. A height adjustment structure 80 is provided on the top of the plate 20 and connected to the squeegee 70. The size of the spacer 140 can be adjusted by the height adjustment structure 80 to meet the needs of different squeegee thicknesses. The top of the squeegee 70 is supported by... A height detection structure 90 is provided for adjustment, which allows the operator to monitor the adhesive thickness in real time. In actual use, the positions of the limit block 30 and the adhesive scraper 70 are first adjusted, and then the metering glue feeder 60 supplies glue to the dispensing block 42. The tape passes through the interval 120, first passing through the dispensing block 42 to adhere glue to its surface, and finally passing through the adhesive scraper 70 for scraping and coating. Other structures of the present invention will be described in detail below.

[0030] refer to Figure 2 As shown, two fixing blocks 100 corresponding to the positions of the limiting blocks 30 are respectively provided on both sides of the width direction of the base plate 10. Each limiting block 30 has a sliding groove 31 on both sides of its width direction. A slider 101 is provided on the fixing block 100 and slides in the sliding groove 31. When fixing the limiting block 30, a knob screw 110 is screwed into the fixing block 100 from the outside to abut against the limiting block 30. When adjusting the position of the limiting block 30, the slider 101 will cooperate with the sliding groove 31. After the limiting block 30 is adjusted, the knob screw will be screwed in to fix it to the base plate 10, thereby ensuring the stability of the adhesive application.

[0031] refer to Figure 3 and Figure 6As shown, in this embodiment, the dispensing structure 40 includes an overlapping plate 41 and a dispensing block 42. The overlapping plate 41 overlaps above the limiting block 30, and the dispensing block 42 is fixed below the overlapping plate 41, forming a 7-shaped structure with the overlapping plate 41. The diversion structure 50 includes a diversion block 51. The diversion block 51 has a vertical cavity 511 connected to the metering dispensing device 60, a horizontal cavity 512 perpendicular to and connected to the vertical cavity 511, and two branch cavities 513 perpendicular to and connected to the horizontal cavity 512. The overlapping plate 41 has a through groove 411 communicating with one of the branch cavities 513. The dispensing block 42 has a through dispensing cavity 422. The channel 422 is connected to the through groove 411 of the overlap plate 41. The bottom of the glue dispensing block 42 is provided with a recess 421. The glue dispensing cavity 422 of the glue dispensing block 42 sets its glue dispensing end on an inclined surface 711 of the recess 421. In actual use, the metering glue dispenser 60 injects glue into the diverting block 51. At this time, the glue first flows along the vertical cavity 511 and the horizontal cavity 512, and then is diverted through two branch cavities 513. The diverted glue will pass through the through groove 411 of the overlap plate 41 to the glue dispensing cavity 422 of the glue dispensing block 42. Finally, the glue dispensing cavity 422 supplies glue to the material belt. The purpose of setting the recess 421 is to ensure that the glue can flow smoothly to the surface of the material belt.

[0032] refer to Figure 3 As shown, based on the previous embodiment, the metering glue dispenser 60 includes a glue storage tube 61 and a metering air pump 62. The glue storage tube 61 is connected to the vertical cavity 511 of the diverter block 51 through the metering air pump 62. The metering air pump 62 is used to meterly dispense the glue in the glue storage tube 61 into the diverter block 51. In actual use, the metering air pump 62 dispenses the glue in the glue storage tube 61 into the diverter block 51 in one meter. This method can avoid too much glue remaining at the glue outlet block 42.

[0033] refer to Figure 1 and Figure 8 As shown, based on the first two embodiments, a protective plate 52 is also included. The protective plate 52 is connected to the diverting block 51 on the material belt inlet side. Two clearance grooves 521 corresponding to the interval 120 are provided on the bottom length direction of the protective plate 52. Based on this scheme, it can be ensured that the diverting block 51 can be protected without affecting the normal movement of the material belt, thus avoiding damage to it under external force.

[0034] refer to Figure 1 and Figure 4As shown, in a preferred embodiment of the present invention, the glue-applying scraper 70 is designed as an inverted U-shaped structure, and the glue-applying blade head 71 has a bevel 711 and an R-angle 712 respectively provided on the lower sides of both sides in the width direction. The bevel 711 and the R-angle 712 make the bottom of the glue-applying blade head 71 form a sharp corner surface. The glue-applying blade head 71 with this structure can ensure the uniformity and smoothness of glue application, and has a strong performance effect.

[0035] refer to Figure 1 and Figure 7 As shown, in this embodiment, to enable the adhesive scraper 70 to be raised and lowered, the height adjustment structure 80 includes a compression block 82 fixed to the adhesive scraper 70. Slots 821 are respectively provided inside the compression block 82 on both sides of its width direction. Positioning posts 81 are respectively provided on the top of the partition 20 along its width direction and inserted into the slots 821. Springs 83 are respectively engaged in the two slots 821, passing through the positioning posts 81. The compression block 82 can be height adjusted by compressing the two springs 83. When the compression block 82 is under pressure, it will be compressed, at which point the adhesive scraper 70 fixed to the compression block 82 can be adjusted. The process of lowering and raising the height is not elaborated further. In conjunction with this, the height detection structure 90 includes a truss 91 and a digital micrometer 92. The truss 91 is fixed to the base plate 10, and its crossbeam corresponds to the adhesive scraper 70. The digital micrometer 92 is adjustable and fixed on the crossbeam of the truss 91, and its detection head 921 passes through the crossbeam and contacts the adhesive scraper 70. In actual use, when the detection head 921 of the digital micrometer 92 moves up or down, the compression block 82 will adjust its height. When the digital micrometer 92 displays the desired value, the digital micrometer 92 can be fixed to the crossbeam of the truss 91.

[0036] refer to Figure 7 As shown in the previous embodiment, to fix the digital micrometer 92 to the crossbeam, the present invention provides an external thread 922 above the measuring head of the digital micrometer 92, and the external thread 922 is located below the crossbeam of the truss 91. When fixing the digital micrometer 92 to the truss 91, a nut 93 is screwed onto the external thread 922 and abuts against the crossbeam. When the height of the glue applicator is adjusted to the correct position, the operator can adjust and tighten the nut 93 to fix it to the crossbeam of the truss 91. It should be noted that the equipment of the present invention is relatively precise, and the adjustment range is relatively small.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent transformations or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A miniature glue applicator, characterized in that, The device includes a horizontally positioned base plate. A partition is located in the middle of the base plate along its width. Limiting blocks are positioned on both sides of the partition along its length. A first interval, adapted to the width of the material strip, is provided between the limiting blocks and the partition, allowing the limiting blocks to be adjusted closer to or further away from the partition. A glue dispensing structure overlaps with the limiting blocks. A second interval, adapted to the thickness of the material strip, is provided between the glue dispensing structure and the base plate. The tops of the two glue dispensing structures are connected to a metering glue dispenser via a common diversion structure. A glue-applying scraper is positioned on the outlet side of the material strip on the partition. The scraper has a glue-applying head on each side of the partition. A third interval, limiting the glue-applying thickness, is provided between the glue-applying head and the base plate. A height adjustment structure is located on the top of the partition and connected to the glue-applying scraper. A height detection structure, in contact with the adjustment mechanism, is mounted on the top of the glue-applying scraper.

2. The miniature glue applicator according to claim 1, characterized in that, The base plate has two fixing blocks on each side of its width direction, corresponding to the positions of the limiting blocks. Each limiting block has a sliding groove on each side of its width direction. A slider is provided on the fixing block and slides in the sliding groove. When fixing the limiting block, a knob screw is screwed into the fixing block from the outside to abut against the limiting block.

3. A miniature glue applicator according to claim 1, characterized in that, The dispensing structure includes an overlap plate and a dispensing block. The overlap plate overlaps above the limiting block, and the dispensing block is fixed below the overlap plate, forming a figure-7 shape with the overlap plate. The diversion structure includes a diversion block. The diversion block has a vertical cavity connected to the metering dispenser, a horizontal cavity perpendicular to and connected to the vertical cavity, and two branch cavities perpendicular to and connected to the horizontal cavity. The overlap plate has a through groove communicating with one of the branch cavities. The dispensing block has a through dispensing cavity, and the dispensing cavity of the dispensing block communicates with the through groove of the overlap plate. The bottom of the dispensing block has an inward recess, and the dispensing end of the dispensing cavity of the dispensing block is located on an inclined surface of the recess.

4. A miniature glue applicator according to claim 3, characterized in that, The metering glue dispenser includes a glue storage tube and a metering air pump. The glue storage tube is connected to the vertical cavity of the distribution block through the metering air pump. The metering air pump is used to meterly dispense the glue from the glue storage tube into the distribution block.

5. A miniature glue applicator according to claim 3, characterized in that, It also includes a protective plate, which is connected to the diverter block on the feed belt inlet side, and the bottom of the protective plate is provided with two clearance grooves corresponding to a spacing of one in the length direction.

6. A miniature glue applicator according to claim 1, characterized in that, The adhesive scraper is designed with an inverted U-shaped structure.

7. A miniature glue applicator according to claim 1, characterized in that, The glue-applying blade has beveled surfaces and radius-angles on its lower sides in the width direction, which make the bottom of the glue-applying blade have sharp corners.

8. A miniature glue applicator according to claim 1, characterized in that, The height adjustment structure includes a compression block fixed to the adhesive scraper. Slots are provided inside the compression block on both sides in the width direction. Positioning posts are provided on the top of the partition on both sides in the width direction and inserted into the slots. Springs are respectively engaged in the two slots and pass through the positioning posts. The height of the compression block can be adjusted by compressing the two springs.

9. A miniature glue applicator according to claim 1, characterized in that, The height detection structure includes a truss and a digital micrometer. The truss is fixed to the base plate and its crossbeam corresponds to the adhesive scraper. The digital micrometer is adjustable and fixed on the crossbeam of the truss and its detection head passes through the crossbeam to contact the adhesive scraper.

10. A miniature glue applicator according to claim 9, characterized in that, The digital micrometer has an external thread above its measuring head, and the external thread is located below the crossbeam of the truss. When the digital micrometer is fixed to the truss, a nut is screwed onto the external thread to abut against the crossbeam.

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