Cover tape processing and gluing equipment

Abstract

The invention discloses cover tape processing and gluing equipment, and particularly relates to the field of gluing equipment.The cover tape processing and gluing equipment comprises an upper die, a lower die and a gasket, the gasket is located between the upper die and the lower die to form a gap, a coating outlet, namely a lip, is formed in a first upper die head and a first lower die head, and a plurality of grooves are formed in the attaching face of the upper die and the lower die; a first cavity and a second cavity which are provided with inclined planes are formed after the upper die and the lower die are assembled, the first cavity and the second cavity are communicated through a flow channel, an adjusting piece with an inclined plane is movably arranged in the second cavity, the distance between the adjusting piece and the second cavity is controlled through movement of the adjusting piece, and a rotatable adjusting roller is arranged between the upper die and the lower die. The moving amount of the adjusting part is controlled by rotating the adjusting roller, the coating roller is further rotationally arranged on one side of the adjusting part, the coating amount is controlled by moving the adjusting part and controlling the gap between the inclined face of the adjusting part and the inclined face of the second cavity, then the coating thickness is controlled, adjustment is conducted in a rotating mode of the adjusting roller, and the structure is simple and efficient.

Description

Technical Field

[0001] This invention relates to the field of adhesive coating equipment technology, and more specifically, to an adhesive coating equipment for cover tape processing. Background Technology

[0002] Cover tape, also known as top cover tape or top tape, is a strip-shaped product in the field of electronic packaging. It is usually used in conjunction with carrier tape to package and protect surface-mount components (SMD), such as ICs, capacitors, resistors, connectors, diodes, etc. It plays a key role in the automated packaging and transportation of electronic components.

[0003] The cover tape is used in conjunction with the carrier tape and requires adhesive to be applied to it. Currently, adhesive application equipment uses a lip adjustment mechanism to control the gap of the lips to control the amount of adhesive applied, and thus the thickness of the adhesive on the cover tape. The adjustment methods include mechanical adjustment structures and thermal expansion compensation mechanisms. Mechanical adjustment structures have problems such as adjustment lag and parallelism deformation. Thermal expansion adjustment controls the lip gap by adding adjustment blocks and controlling thermal expansion and contraction. Its structure is relatively complex and costly.

[0004] To address this, the inventor designed a slit coating die head with a simple and effective lip gap adjustment structure, and also features a multi-coating capability. Summary of the Invention

[0005] To overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a cover strip processing adhesive coating equipment. By moving the adjusting component, the gap between the inclined surface of the adjusting component and the inclined surface of the second chamber is controlled, thereby controlling the amount of coating and the coating thickness. The adjustment is made by rotating the adjusting roller. Its structure is simple and efficient. The coating roller set on one side of the adjusting component can be used as a roller coating when the adjusting component extends out of the lip, realizing a multi-coating method for one mold.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cover strip processing adhesive coating equipment, comprising an upper mold, a lower mold, and a gasket, wherein the gasket is located between the upper mold and the lower mold to form a gap, and forms an outlet for the coating, i.e., a lip, at the upper and lower mold heads; the mating surfaces of the upper mold and the lower mold are provided with multiple grooves; after the upper mold and the lower mold are closed, the grooves form a cavity one and a cavity two with inclined surfaces, and the cavity one and the cavity two are connected by a flow channel;

[0007] An adjustable element with an inclined surface is movable inside chamber two, and the movement of the adjustable element is controlled by the distance between chamber two;

[0008] A rotatable adjusting roller is set between the upper and lower dies, and rotating the adjusting roller controls the amount of movement of the adjusting component;

[0009] A paint roller is also rotatably mounted on one side of the adjusting component.

[0010] In a preferred embodiment, the lower mold side is further provided with a plurality of feed holes at equal intervals, and the feed holes are connected to the cavity.

[0011] In a preferred embodiment, the cross-section of the second chamber is triangular, and the cross-section of the adjusting member is a polygon adapted to the second chamber, wherein two acute-angled sides are adapted to the second chamber, and the adjusting member can slide centrally inside the second chamber.

[0012] In a preferred embodiment, the adjusting member is provided with mounting seats at both ends, and movable grooves are formed on the mating surfaces of the upper and lower molds. After the upper and lower molds are closed, the two movable grooves form a sliding groove that allows the mounting seats to move.

[0013] In a preferred embodiment, the adjusting roller is provided with mounting shafts at both ends, the mounting shafts pass through both ends of the upper and lower molds and extend to the outside, and the mounting shafts are provided with multiple seals.

[0014] In a preferred embodiment, the surface of the adjusting roller is provided with protrusions along the length direction, the edges of the protrusions are arc structures with gradually increasing diameters, and the arc surfaces of the protrusions contact the adjusting member and control the amount of movement of the adjusting member in the second chamber.

[0015] The adjusting component has two obtuse-angled edges on one side, which protrude and contact the obtuse-angled edges of the adjusting component.

[0016] In a preferred embodiment, the flow channels are flow channel one and flow channel two, one end of flow channel one is connected to chamber one, and the other end is connected to chamber two through flow channel two. Flow channel two forms an angle of 10 to 15 degrees with the inclined surface of the adjusting member.

[0017] The outlet of the flow channel faces the side of the regulating roller and forms an angle with the side of the regulating component.

[0018] In a preferred embodiment, an assembly groove is formed at one acute-angled end of the adjusting member along its length, a paint roller is rotatably arranged inside the assembly groove, and a Y-shaped flow channel three is provided inside the adjusting member. The two ends of the flow channel three penetrate through the side of the adjusting member, and the other end of the flow channel three is connected to the assembly groove.

[0019] In a preferred embodiment, the gasket includes a first gasket and a second gasket. The first gasket is positioned by a positioning post and is laid between the upper and lower die heads. The second gasket is located at both ends of the lips of the upper and lower die heads.

[0020] In a preferred embodiment, the paint roller is assembled by rotating within the assembly groove via a shaft, or by wrapping the paint roller with the arc surface of the assembly groove.

[0021] The technical effects and advantages of this invention are as follows:

[0022] 1. By moving the adjusting component, the gap between the inclined surface of the adjusting component and the inclined surface of the second chamber is controlled, thereby controlling the amount of coating and the coating thickness. The adjustment is made by rotating the adjusting roller. Its structure is simple and efficient. In order to make the adjusting component have a force relative to the adjusting roller, the flow channel opened inside the upper and lower molds is used. In particular, the second flow channel is at an angle to the inclined surface of the adjusting component, ensuring that the adjusting component can always be in contact with the adjusting roller during operation, thus ensuring the stability of the adjusting component after adjustment.

[0023] 2. After the lip protrudes from the acute angle end of the adjusting part, the flow channels three on both sides of the adjusting part are aligned with the outlet of the flow channel two. The paint cannot overflow from the lip, so it enters the assembly groove through the flow channel three and is coated onto the cover belt by the paint roller. This is suitable for high viscosity paints.

[0024] 3. This coating die head can seamlessly replace the coating dies head of existing coating equipment on the market. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0027] Figure 3 This is a schematic diagram showing the position of the adjusting roller in the die head according to the present invention.

[0028] Figure 4 This is a schematic diagram of the overall structure of the adjusting roller of the present invention.

[0029] Figure 5 This is a schematic cross-sectional view of the coating die head of the present invention.

[0030] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle.

[0031] Figure 7 This is a schematic diagram of the adjusting member protruding from the lip after it has been moved according to the present invention.

[0032] Figure 8 This is a schematic diagram of the structure of the coating roller and the adjusting component after disassembly according to the present invention.

[0033] Figure 9 This is a schematic diagram of the coating roller and adjusting component after disassembly according to the present invention.

[0034] Figure 10 This is a schematic diagram of the overall cross-sectional view of the adjusting component of the present invention.

[0035] Figure 11 for Figure 3 Enlarged diagram of point A in the middle.

[0036] Figure 12This is a schematic diagram of the raised structure on the adjusting roller of the present invention.

[0037] The attached figures are labeled as follows: 1. Upper mold; 101. Lower mold; 102. Feed hole; 103. Lip; 104. Gasket 1; 105. Chamber 1; 106. Positioning pin; 107. Gasket 2; 108. Movable groove; 2. Adjusting roller; 201. Mounting shaft; 202. Protrusion; 203. Chamber 2; 204. Flow channel 1; 205. Flow channel 2; 3. Adjusting component; 301. Assembly seat; 302. Flow channel 3; 303. Paint roller; 304. Assembly groove. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] As attached Figure 1 With appendix Figure 12 The illustrated adhesive coating equipment for a cover strip includes an upper mold 1 and a lower mold 101. A gasket 104 is provided between the upper and lower molds. The thickness of the gasket 104 forms a gap on one side of the upper and lower molds, namely a lip 103 for coating overflow. Multiple grooves are also provided on the side where the upper and lower molds are closed, forming a cavity 105 after the upper and lower molds are closed.

[0040] Multiple feed holes 102 are also equally spaced on the side of the lower mold 101. External equipment uses pressure to send the coating into the chamber 105 through the feed holes 102. The coating overflows from the lip after passing through the chamber 105 and is coated on the cover strip. The coating thickness of this type of slit coating can be precisely controlled by the liquid flow rate and the substrate speed, and it is suitable for ultra-thin coatings and complex structure coatings.

[0041] In the existing slit coating lip 103 adjustment, there are mechanical adjustments, such as push-pull bolt adjustment, which involves manually rotating the bolt to fine-tune the lip gap. However, there are problems such as adjustment lag and parallelism deformation. There are also thermal expansion adjustments, which control the lip 103 gap by heating the adjustment block to control thermal expansion and contraction.

[0042] Unlike existing slot coating dies, this die has multiple slots on the mating side of the upper die 1 and the lower die 101. After the upper die 1 and the lower die 101 are closed, these slots form a second chamber 203. The cross-section of the second chamber 203 is triangular, and one of the acute angles of the second chamber 203 is a lip 103. An adjusting member 3 is set inside the second chamber 203. The cross-section of the adjusting member 3 is designed to fit the second chamber 203 as a polygon, with the two acute angles fitting the second chamber 203. The adjusting member 3 can slide inside the second chamber 203. When the adjusting member 3 slides, it can adjust the distance between the two inclined surfaces and the two inclined surfaces of the second chamber 203, thereby controlling the flow rate of the coating through the gaps and thus controlling the coating thickness on the cover strip.

[0043] In this invention, to ensure that the adjusting member 3 can slide centrally within the second chamber 203, mounting bases 301 are provided at both ends of the adjusting member 3, and movable grooves 108 are opened on the mating surfaces of the upper mold 1 and the lower mold 101. After the upper mold 1 and the lower mold 101 are closed, the two movable grooves 108 form a sliding groove that allows the mounting bases 301 to move, so as to ensure that the adjusting member 3 can slide centrally within the second chamber 203 and that the distance between the two sides of the adjusting member 3 and the side wall of the second chamber 203 is consistent.

[0044] refer to Figure 4 , Figure 6 , Figure 7 , Figure 11 , Figure 12 As shown, in order to control the sliding of the adjusting component 3, a rotatable adjusting roller 2 is provided between the upper mold 1 and the lower mold 101 along the length direction. The adjusting roller 2 is provided with mounting shafts 201 at both ends. During assembly, the mounting shafts 201 pass through the two ends of the upper mold 1 and the lower mold 101 and extend to the outside. During assembly, multiple sealing components, such as sealing rings, are provided on the mounting shafts 201 to prevent the paint from overflowing from the mounting shafts 201.

[0045] A protrusion 202 is provided along the length direction on the surface of the adjusting roller 2, and the edge of the protrusion 202 has an arc structure with a gradually increasing diameter (e.g., Figure 6 , Figure 7 , Figure 12 As shown, when the adjusting roller 2 is rotated, the arc surface of the protrusion 202 contacts the adjusting member 3 and controls the amount of movement of the adjusting member 3 in the second chamber 203. In this invention, in order to ensure that the protrusion 202 can better control the adjusting member 3, the adjusting member 3 is provided with two obtuse angle edges on one side. The protrusion 202 contacts the obtuse angle edges of the adjusting member 3, thereby more accurately controlling the amount of movement of the adjusting member 3 in the second chamber 203.

[0046] During operation, rotating the adjusting roller 2 controls the movement of the adjusting component 3 within the second chamber 203. The adjusting component 3 requires a force relative to the adjusting roller 2. Therefore, flow channels are provided inside the upper mold 1 and the lower mold 101, namely flow channel one 204 and flow channel two 205. One end of flow channel one 204 is connected to the first chamber 105, and the other end is connected to the second chamber 203 through flow channel two 205. Flow channel two 205 forms an angle of 30 to 50 degrees with the inclined surface of the adjusting component 3. The paint is supplied into the first chamber 105 through an external pressure device and enters the second chamber 203 through the flow channel. Since the outlet of flow channel two 205 faces the adjusting roller 2 and forms an angle with the side of the adjusting component 3, when the paint is sprayed out from flow channel two 205, it will give the adjusting component 3 a force in the direction of the adjusting roller 2. This ensures that the adjusting component 3 can stably achieve the adjustment function when the pressure of the paint supply device is stable during operation.

[0047] In application, the rotation of the adjusting roller 2 can be driven by an external motor or by adding an adjusting knob.

[0048] like Figures 8 to 10 As shown, unlike existing slit coating dies, the coating die of this invention also features a multi-coating capability. Specifically, an assembly groove 304 is formed along the length of one acute-angle end of the adjusting member 3. A coating roller 303 is rotatably mounted within the assembly groove 304. A Y-shaped flow channel 302 is provided inside the adjusting member 3. The two ends of the flow channel 302 penetrate the side of the adjusting member 3, and the other end of the flow channel 302 communicates with the assembly groove 304. When the adjusting roller 2 fully pushes the adjusting member 3 until the acute-angle end extends beyond the lip 103, and the two sides of the adjusting member 3 are tightly fitted against the second chamber 203 (as shown in the image), the coating die of this invention can achieve the following: Figure 7 As shown), at this time, the outlet of flow channel 205 is aligned with the opening of flow channel 302. The paint cannot overflow from the lip 103, so it will pass through flow channel 302 and enter the assembly groove 304 to be coated on the paint roller 303. Then the paint roller 303 rolls and coats the cover belt. This coating method is much faster than slot coating and is suitable for high-speed production. It is also suitable for high-viscosity paints.

[0049] In application, the paint roller 303 can be assembled by rotating within the assembly groove 304 via a shaft, or by wrapping the paint roller 303 with the arc surface of the assembly groove 304.

[0050] The coating die head of the present invention retains the gasket structure of the existing coating die head, namely gasket one 104 and gasket two 107. The gasket is positioned by positioning post 106 and laid in the middle of the upper and lower die heads. Gasket two 107 is located at both ends of the upper and lower die head lips 103.

[0051] In this invention, the amount of coating material on the lip 103 is controlled by the movement of the adjusting component 3, thereby controlling the coating thickness. While ensuring stable material output after the adjusting component 3 is adjusted, the pressure of the coating material is used to ensure the relative force between the adjusting component 3 and the adjusting roller 2. This makes the overall structure of the coating die head of this invention simple, easy to maintain and clean, and easy to operate and control. On this basis, a roller coating method is added to the coating die head. On the cover tape coating, different thicknesses of coating material can be adjusted, and coating material of different viscosities can be applied, realizing one die for multiple coatings.

[0052] This coating die head can seamlessly replace the coating dies of existing coating equipment on the market and can be used with multi-rollers or doctor blades.

[0053] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0054] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0055] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coating equipment for a cover strip, comprising an upper mold (1), a lower mold (101), and a gasket, the gasket being located between the upper mold (1) and the lower mold (101) to form a gap, and forming a coating outlet, i.e., a lip (103), at one end of the upper and lower molds, characterized in that: The mating surfaces of the upper mold (1) and the lower mold (101) are provided with multiple grooves. After the upper mold (1) and the lower mold (101) are closed, the grooves form a cavity one (105) and a cavity two (203) with inclined surfaces. The cavity one (105) and the cavity two (203) are connected by a flow channel. An adjusting member (3) with an inclined surface is movably installed in the second chamber (203), and the movement of the adjusting member (3) is controlled by the distance between the second chamber (203); A rotatable adjusting roller (2) is set between the upper mold (1) and the lower mold (101). Rotating the adjusting roller (2) controls the amount of movement of the adjusting component (3). A paint roller (303) is also rotatably mounted on one side of the adjusting component (3).

2. The adhesive coating equipment for cover strip processing according to claim 1, characterized in that: The lower mold (101) also has multiple feed holes (102) evenly spaced on its side, and the feed holes (102) are connected to the first chamber (105).

3. The adhesive coating equipment for cover strip processing according to claim 2, characterized in that: The cross-section of the second chamber (203) is triangular, and the cross-section of the adjusting member (3) is a polygon adapted to the second chamber (203), wherein the two acute angle sides are adapted to the second chamber (203), and the adjusting member (3) can slide centrally inside the second chamber (203).

4. The adhesive coating equipment for cover strip processing according to claim 3, characterized in that: The adjusting component (3) has mounting bases (301) at both ends, and movable grooves (108) are opened on the mating surfaces of the upper mold (1) and the lower mold (101). After the upper mold (1) and the lower mold (101) are closed, the two movable grooves (108) form a sliding groove that allows the mounting base (301) to move.

5. A cover strip processing and adhesive coating equipment according to any one of claims 1 to 4, characterized in that: The adjusting roller (2) has mounting shafts (201) at both ends. The mounting shafts (201) pass through the upper mold (1) and the lower mold (101) and extend to the outside. Multiple seals are provided on the mounting shafts (201).

6. The adhesive coating equipment for cover strip processing according to claim 5, characterized in that: The surface of the adjusting roller (2) is provided with protrusions (202) along the length direction. The edge of the protrusions (202) has an arc structure with a gradually increasing diameter. The arc surface of the protrusions (202) contacts the adjusting member (3) and controls the amount of movement of the adjusting member (3) in the second chamber (203). The adjusting member (3) has two obtuse-angled edges on one side, and the protrusion (202) contacts the obtuse-angled edges of the adjusting member (3).

7. A cover strip processing and adhesive coating equipment according to claim 1 or 6, characterized in that: The flow channels are flow channel one (204) and flow channel two (205), one end of flow channel one (204) is connected to chamber one (105), and the other end is connected to chamber two (203) through flow channel two (205). Flow channel two (205) forms an angle of (30) to (50) degrees with the inclined surface of the adjusting member (3). The outlet of flow channel 2 (205) faces the side of the regulating roller (2) and forms an angle with the side of the regulating member (3).

8. The adhesive coating equipment for cover strip processing according to claim 7, characterized in that: The adjustment component (3) has an assembly groove (304) at one acute angle end along its length. A paint roller (303) is rotatably installed inside the assembly groove (304). A Y-shaped flow channel three (302) is provided inside the adjustment component (3). The two ends of the flow channel three (302) penetrate the side of the adjustment component (3), and the other end of the flow channel three (302) is connected to the assembly groove (304).

9. A cover strip processing and adhesive coating equipment according to claim 1 or 8, characterized in that: The gaskets include gasket one (104) and gasket two (107). The gaskets are positioned by positioning pins (106) and are laid in the middle of the upper and lower mold heads. Gasket two (107) is located at both ends of the lips (103) of the upper and lower mold heads.

10. The adhesive coating equipment for cover strip processing according to claim 8, characterized in that: The paint roller (303) is assembled by rotating within the assembly groove (304) via a shaft, or by wrapping the paint roller (303) with the arc surface of the assembly groove (304).

Images