A device for producing high-tack adhesive-backed tape

Abstract

The application provides a high-viscosity back adhesive production device, which comprises an inner shell filtering structure, the inner shell filtering structure comprises a filtering bin, the inner side of the filtering bin is provided with a guide block, the inside of the filtering bin is provided with a filtering hole, the middle of the bottom of the filtering bin is provided with a positioning hole, and the inner wall of the positioning hole is provided with a flexible sealing ring. The application has reasonable design. Through high-frequency vibration generated by impact of the fitting block on the guide block, the caked raw materials can be completely broken into the original powder particle state. In cooperation with the closed-loop circulating feeding system, all raw materials are filtered and mixed for multiple times, so that the problem of uneven local composition caused by the caked raw materials in the traditional device is solved, and the product performance stability is improved by more than 50%.

Description

Technical Field

[0001] This invention mainly relates to the field of adhesive production, specifically to a high-viscosity adhesive production and preparation apparatus. Background Technology

[0002] High-tack adhesives, as an important functional bonding material, are widely used in many core sectors of the national economy, such as electronics, automobile manufacturing, building decoration, packaging and printing, and medical devices, due to their excellent initial tack, holding power, and weather resistance. With the rapid development of downstream industries, the market is placing increasingly stringent demands on the bonding strength, performance stability, and production efficiency of high-tack adhesives.

[0003] The production process of high-viscosity adhesives usually involves the precise proportioning and thorough mixing of various raw materials. The core raw materials include tackifiers such as acrylate monomers, rosin resins, and terpene resins, phthalate plasticizers, functional fillers such as fumed silica and calcium carbonate, as well as additives such as initiators, crosslinking agents, and antioxidants.

[0004] During the operation of specific embodiments, the inventors discovered the following defects: Current high-viscosity adhesive production equipment generally adopts a direct feeding method, adding various raw materials into a reaction vessel or mixing tank in a single batch according to the specified ratio, and relying on the rotation of the agitator to achieve mixing. This traditional method has significant technical drawbacks when dealing with agglomerated raw materials: the shearing and impact forces generated by ordinary agitators are limited, only able to break up large clumps into smaller lumps, but unable to completely break them down to their original powder particle state. These insufficiently broken raw material lumps will remain suspended in the adhesive system, unable to uniformly contact and react with other liquid or powder raw materials, resulting in localized areas with excessively high or low concentrations of effective components.

[0005] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Summary of the Invention

[0006] 1. The technical problem that the invention aims to solve: This invention provides a high-viscosity adhesive production and preparation apparatus to solve the technical problems existing in the background art.

[0007] 2. Technical Solution: To achieve the above objectives, the technical solution provided by the present invention is as follows: a high-viscosity adhesive production and preparation device, including an outer shell heat preservation and heating structure, an inner shell filter structure is provided inside the outer shell heat preservation and heating structure, the outer shell heat preservation and heating structure and the inner shell filter structure are connected by a flexible component, and a stirring and feeding structure is rotatably connected inside the inner shell filter structure. The inner shell filter structure includes a filter chamber, a guide block is provided on the inner side of the filter chamber, filter holes are opened inside the filter chamber, a positioning hole is opened in the middle of the bottom of the filter chamber, a flexible sealing ring is provided on the inner wall of the positioning hole, a feeding pipe is provided in the middle of the flexible sealing ring, and discharge ports are opened on both sides of the middle of the feeding pipe.

[0008] Furthermore, the inner wall of the outer shell insulation and heating structure is provided with an inner heat-conducting plate, and a partition strip is provided between the inner heat-conducting plate and the insulation shell. The number of partition strips is set to multiple, and the multiple partition strips are arranged in a ring array between the insulation shell and the inner heat-conducting plate. A partition compartment is opened between two partition strips, and a sealing cover is provided on the top of the insulation shell.

[0009] Furthermore, the interior of each compartment is equipped with a heat-conducting pipe, and the inner heat-conducting plates are evenly distributed along the vertical line of the inner heat-conducting plates. Each compartment is equipped with a heat-conducting pipe.

[0010] Furthermore, a top sealing ring is added near the top of the inner heat-conducting plate and the inner wall of the insulation shell. A liquid inlet pipe is provided at the top of the top sealing ring. The liquid inlet pipe is connected to the partition chamber. The number of liquid inlet pipes is set to multiple. A central chamber is provided between the multiple liquid inlet pipes. Liquid outlet pipes are provided on both sides of the central chamber.

[0011] Furthermore, the mixing and feeding structure includes a servo motor, which is located in the middle of the sealing cover. The output end of the servo motor is provided with a drive shaft, the bottom of the drive shaft is provided with a rotating shaft, and the bottom of the rotating shaft is provided with a feeding screw.

[0012] Furthermore, the feeding screw is rotatably connected to the inner wall of the feeding pipe, and the bottom of the feeding screw is disposed on the inner wall of the inner heat-conducting plate.

[0013] Furthermore, the outer wall of the drive shaft is provided with a support bar, the bottom of the support bar is provided with a flexible rod, and the bottom of the flexible rod is provided with a fitting block.

[0014] Furthermore, a stirring plate is provided at one end of the support bar, and auxiliary grooves are provided on both sides of the outer wall of the stirring plate. The two ends of the stirring plate are slidably connected to the inner wall of the inner heat-conducting plate and the outer wall of the filter chamber, respectively.

[0015] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this invention has the following advantages: This invention utilizes the high-frequency vibration generated by the impact of the bonding block on the guide block to completely break down agglomerated raw materials into their original powder particle state. Combined with a closed-loop circulating feeding system, all raw materials undergo multiple filtrations and mixing, thoroughly solving the problem of uneven local composition caused by raw material agglomeration in traditional devices, and improving product performance stability by more than 50%. The system employs a zoned heat conduction heating system with multiple independent compartments working together to eliminate temperature gradients within the mixing chamber. Temperature control accuracy can reach ±1℃, avoiding excessive cross-linking or aging of the adhesive caused by local overheating. At the same time, it improves the reaction rate and shortens the production cycle. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the shell insulation and heating structure of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the inner shell filter structure of the present invention; Figure 5 This is a three-dimensional structural diagram of the mixing and feeding structure of the present invention.

[0017] Figure label: 1. Outer shell insulation and heating structure; 101. Insulated shell; 102. Separator strip; 103. Separator compartment; 104. Inner heat-conducting plate; 105. Heat-conducting pipe; 106. Top sealing ring; 107. Liquid inlet pipe; 108. Centralized compartment; 109. Liquid outlet pipe; 110. Sealing cover; 2. Inner shell filtration structure; 201. Filter compartment; 202. Guide block; 203. Filter hole; 204. Positioning hole; 205. Flexible sealing ring; 206. Feeding pipe; 207. Discharge port; 3. Stirring and feeding structure; 301. Servo motor; 302. Drive shaft; 303. Rotating shaft; 304. Feeding screw; 305. Support bar; 306. Flexible rod; 307. Adhesive block; 308. Stirring plate; 309. Auxiliary tank. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description of the invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the invention will be more thorough and complete.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "page," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] Example See attached document Figure 1-5 A high-viscosity adhesive production and preparation device includes an outer shell heat preservation and heating structure 1, an inner shell filter structure 2 is provided inside the outer shell heat preservation and heating structure 1, the outer shell heat preservation and heating structure 1 and the inner shell filter structure 2 are connected by a flexible component, and a stirring and feeding structure 3 is rotatably connected inside the inner shell filter structure 2. The inner shell filter structure 2 includes a filter chamber 201. A guide block 202 is provided on the inner side of the filter chamber 201. A filter hole 203 is opened inside the filter chamber 201. A positioning hole 204 is opened in the middle of the bottom of the filter chamber 201. A flexible sealing ring 205 is provided on the inner wall of the positioning hole 204. A feeding pipe 206 is provided in the middle of the flexible sealing ring 205. A discharge port 207 is opened on both sides of the middle of the feeding pipe 206. Acrylic monomers, rosin resin, terpene resin and other tackifiers, phthalate plasticizers, fumed silica, calcium carbonate and other functional fillers, as well as initiators, crosslinking agents, antioxidants and other additives are put into the interior of the filter chamber 201 in sequence. After the medium from the guide block 202 is delivered to the filter chamber 201, the filter chamber 201 transmits vibration to the interior of the filter hole 203, causing the filter hole 203 to vibrate the raw material inside the filter chamber 201. The vibration breaks up and mixes the raw material, allowing it to fuse together. The fused raw material then passes through the filter hole 203 into the interior of the inner heat-conducting plate 104 for secondary mixing.

[0023] Furthermore, the inner wall of the outer shell insulation and heating structure 1 is provided with an inner heat-conducting plate 104. A partition strip 102 is provided between the inner heat-conducting plate 104 and the insulation shell 101. Multiple partition strips 102 are arranged in a circular array between the insulation shell 101 and the inner heat-conducting plate 104. A partition compartment 103 is formed between two partition strips 102. A sealing cover 110 is provided on the top of the insulation shell 101. A heat-conducting pipe 105 is provided inside the partition compartment 103. The inner heat-conducting plates 104 are evenly distributed along their vertical lines. Each partition compartment 103 is equipped with a heat-conducting pipe 105. A top sealing ring 106 is added close to the top of the hot plate 104 and the inner wall of the insulation shell 101. A liquid inlet pipe 107 is provided on the top of the top sealing ring 106. The liquid inlet pipe 107 is connected to the partition chamber 103. The number of liquid inlet pipes 107 is set to multiple. A central chamber 108 is provided between the multiple liquid inlet pipes 107. Liquid outlet pipes 109 are provided on both sides of the central chamber 108. The liquid enters the inner heat-conducting plate 104 for secondary mixing. At the same time, the external heating medium enters the partition chamber 103 through the pipe. The medium passes through the inner heat-conducting plate 104 and the heat-conducting pipe 105 to control the temperature and heat the raw materials inside the inner heat-conducting plate 104, thereby improving the fusion between the raw materials.

[0024] Furthermore, the stirring and feeding structure 3 includes a servo motor 301, which is located in the middle of the sealing cover 110. A drive shaft 302 is located at the output end of the servo motor 301. A rotating shaft 303 is located at the bottom of the drive shaft 302, and a feeding screw 304 is located at the bottom of the rotating shaft 303. The feeding screw 304 is rotatably connected to the inner wall of the feeding pipe 206, and its bottom is located on the inner wall of the inner heat-conducting plate 104. A support strip 305 is located on the outer wall of the drive shaft 302, and a flexible rod 306 is located at the bottom of the support strip 305. A bonding block 307 is located at the bottom of the flexible rod 306. A stirring element is located at one end of the support strip 305. The stirring plate 308 has auxiliary grooves 309 on both sides of its outer wall. The two ends of the stirring plate 308 are slidably connected to the inner wall of the inner heat-conducting plate 104 and the outer wall of the filter chamber 201, respectively. When the raw material enters the filter chamber 201 and the inner heat-conducting plate 104, the servo motor 301 is started. The servo motor 301 drives the transmission shaft 302 to rotate. The transmission shaft 302 drives the rotating shaft 303 to rotate. The rotating shaft 303 drives the feeding screw 304 to rotate on the inner wall of the feeding pipe 206, so that the feeding screw 304 sends the raw material mixed inside the inner heat-conducting plate 104 into the feeding pipe 206 and then sends the raw material back into the filter chamber 201 through the discharge port 207 for secondary vibration. Simultaneously, as the drive shaft 302 rotates, it drives the support bar 305 to rotate. The support bar 305 drives the flexible rod 306 to move accordingly. After the flexible rod 306 drives the bonding block 307 past the guide block 202, the guide block 202 pushes the bonding block 307 to move inward. The bonding block 307 drives the flexible rod 306 to bend. After the bonding block 307 passes the guide block 202, the flexible rod 306 drives the bonding block 307 to reset and the bonding block 307 contacts the inner wall of the filter chamber 201, generating a certain vibration in the filter chamber 201. At the same time, the support bar 305 drives the stirring plate 308 to rotate between the inner heat-conducting plate 104 and the filter chamber 201, so that the stirring plate 308 can prepare the raw materials that enter the inner heat-conducting plate 104. A silicone shock-absorbing spring with 3-6 sets of ring arrays is used. One end is connected to the inner wall of the heat insulation shell 101 and the other end is connected to the outer wall of the filter chamber 201. This not only supports the weight of the filter chamber 201, but also allows the filter chamber 201 to generate radial and axial vibrations when impacted by the bonding block 307, while reducing the vibration transmission to the outer shell.

[0025] Feeding stage: Open the sealing cover 110, and put the acrylate monomers, rosin resin, terpene resin tackifier, phthalate plasticizer, fumed silica filler and initiator, crosslinking agent and other additives into the filter chamber 201 of the inner shell filter structure 2 in the proportion, and close the sealing cover 110.

[0026] Heating and temperature control stage: The heat transfer oil or hot water is diverted through the central chamber 108 to each inlet pipe 107 and enters the interior of the partition chamber 103; the heat transfer pipe 105 and the inner heat transfer plate 104 work together to evenly transfer heat to the mixing chamber inside the inner heat transfer plate 104; the reaction temperature is controlled at 60-90℃ by adjusting the temperature of the heat transfer medium; the top sealing ring 106 prevents the heat transfer medium from leaking; the medium after heat exchange flows back to the external temperature control system through the outlet pipe 109.

[0027] Stirring and vibration pre-dispersion stage: Start servo motor 301 to drive drive shaft 302 and rotating shaft 303 to rotate synchronously: The drive shaft 302 drives the support bar 305 to rotate. The stirring plate 308 at the end of the support bar 305 rotates in the mixing chamber between the inner heat-conducting plate 104 and the filter chamber 201. The auxiliary grooves 309 on both sides of the stirring plate 308 increase the shearing force and break up the initially mixed raw material clumps. The flexible rod 306 at the bottom of the support bar 305 drives the bonding block 307 to rotate along the inner wall of the filter chamber 201. When the bonding block 307 passes the guide block 202, the inclined surface of the guide block 202 pushes the bonding block 307 to move inward, causing the flexible rod 306 to bend. When the bonding block 307 disengages from the guide block 202, the flexible rod 306 rebounds, causing the bonding block 307 to strike the inner wall of the filter chamber 201, generating high-frequency vibration. The filter chamber 201 is connected to the outer shell insulation and heating structure 1 through a flexible component. Vibration can be freely transmitted to the entire filter chamber 201, so that the agglomerated raw materials inside are fully dispersed. Raw material particles with a particle size smaller than the filter hole 203 (0.1-0.5mm) enter the outer mixing chamber through the filter hole 203, while large particles that are not dispersed remain in the filter chamber 201 and continue to be vibrated and broken.

[0028] In the circulating feeding stage: the rotating shaft 303 drives the feeding screw 304 to rotate inside the feeding pipe 206, conveying the pre-mixed raw materials at the bottom of the mixing chamber upwards. The raw materials flow back to the top of the filter chamber 201 through the discharge port 207 in the middle of the feeding pipe 206, completing one cycle. The flexible sealing ring 205 seals the gap between the positioning hole 204 and the feeding pipe 206 to prevent raw material leakage.

[0029] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A high-viscosity adhesive production and preparation apparatus, characterized in that: include The outer shell heat insulation and heating structure (1) is provided with an inner shell filter structure (2). The outer shell heat insulation and heating structure (1) and the inner shell filter structure (2) are connected by a flexible component. The inner shell filter structure (2) is rotatably connected with a stirring and feeding structure (3). The inner shell filter structure (2) includes a filter chamber (201), a guide block (202) is provided on the inner side of the filter chamber (201), a filter hole (203) is provided inside the filter chamber (201), a positioning hole (204) is provided in the middle of the bottom of the filter chamber (201), a flexible sealing ring (205) is provided on the inner wall of the positioning hole (204), a feeding pipe (206) is provided in the middle of the flexible sealing ring (205), and a discharge port (207) is provided on both sides of the middle of the feeding pipe (206).

2. The high-viscosity adhesive production and preparation apparatus according to claim 1, characterized in that: The inner wall of the outer shell heat insulation and heating structure (1) is provided with an inner heat-conducting plate (104). A partition strip (102) is provided between the inner heat-conducting plate (104) and the heat insulation shell (101). The number of partition strips (102) is set to multiple. Multiple partition strips (102) are arranged in a ring array between the heat insulation shell (101) and the inner heat-conducting plate (104). A partition compartment (103) is opened between two partition strips (102). A sealing cover (110) is provided on the top of the heat insulation shell (101).

3. The high-viscosity adhesive production and preparation apparatus according to claim 2, characterized in that: The partition compartment (103) is provided with a heat pipe (105) inside, and the inner heat-conducting plate (104) is distributed at equal intervals along the vertical line of the inner heat-conducting plate (104). Each partition compartment (103) is provided with a heat pipe (105) inside.

4. The high-viscosity adhesive production and preparation apparatus according to claim 2, characterized in that: A top sealing ring (106) is provided close to the top of the inner heat-conducting plate (104) and the inner wall of the heat-insulating shell (101). A liquid inlet pipe (107) is provided on the top of the top sealing ring (106). The liquid inlet pipe (107) is connected to the partition chamber (103). The number of liquid inlet pipes (107) is set to multiple. A central chamber (108) is provided between the multiple liquid inlet pipes (107). Liquid outlet pipes (109) are provided on both sides of the central chamber (108).

5. The high-viscosity adhesive production and preparation apparatus according to claim 1, characterized in that: The mixing and feeding structure (3) includes a servo motor (301), which is located in the middle of the sealing cover (110). The output end of the servo motor (301) is provided with a transmission shaft (302), and the bottom of the transmission shaft (302) is provided with a rotating shaft (303). The bottom of the rotating shaft (303) is provided with a feeding screw (304).

6. The high-viscosity adhesive production and preparation apparatus according to claim 5, characterized in that: The feeding screw (304) is rotatably connected to the inner wall of the feeding pipe (206), and the bottom of the feeding screw (304) is disposed on the inner wall of the inner heat-conducting plate (104).

7. The high-viscosity adhesive production and preparation apparatus according to claim 5, characterized in that: The outer wall of the drive shaft (302) is provided with a support bar (305), the bottom of the support bar (305) is provided with a flexible rod (306), and the bottom of the flexible rod (306) is provided with a bonding block (307).

8. The high-viscosity adhesive production and preparation apparatus according to claim 7, characterized in that: A stirring plate (308) is provided at one end of the support bar (305). Auxiliary grooves (309) are provided on both sides of the outer wall of the stirring plate (308). The two ends of the stirring plate (308) are slidably connected to the inner wall of the inner heat-conducting plate (104) and the outer wall of the filter chamber (201), respectively.

Images