Special double-sided tape for computerized embroidery and processing equipment

Abstract

The invention relates to the technical field of double-sided tape production, in particular to a special double-sided tape for computerized embroidery and processing equipment, the special double-sided tape comprises a double-sided tape body, the double-sided tape body comprises the following structural layers and corresponding materials: a release layer: selecting double-sided release paper with the weight of 80-120 g / m < 2 >; the first adhesive layer is coated with a self-developed acrylic pressure-sensitive adhesive, and the coating thickness is 20-30 microns; the sizing agent layer is coated with water-based sizing agent, and the coating thickness is 5-10 microns; the base material layer is made of cotton paper with the weight of 14-18 g / m < 2 >. The raw material dripping mechanism is additionally arranged at the top of the glue-making reaction kettle body, so that a glue-making mixture is continuously dripped for several times, and adaptive adjustment is conveniently performed according to the reaction process and the characteristics of materials through the dripping flow adjusting mechanism; continuous dropwise adding of the raw materials is achieved through the dropwise adding funnel and the dropwise adding pipe, and the problems that according to traditional preparation equipment, dropwise adding distribution is not uniform, the dispersity of dropwise added materials is poor, and the reaction speed is too high due to high local concentration are further solved.

Description

Technical Field

[0001] The invention relates to the technical field of double-sided adhesive tape production, in particular to a double-sided adhesive tape special for computer embroidery and processing equipment. Background Art

[0002] In the embroidery production process, the computer embroidery industry needs to use a large amount of double-sided tape to fix the upper and lower layers of fabric to ensure the stability of the fabric during the embroidery process. This tape not only requires strong adhesion and is not easy to fall off, but also needs to be easy to stick and tear off to meet the high efficiency and precision requirements of computer embroidery. The double-sided tape specially used for computer embroidery needs to have sufficient adhesion to ensure that the fabric will not move or misalign during the embroidery process and affect the embroidery quality. When preparing the glue for the double-sided tape, a reactor is required to prepare the glue.

[0003] In the prior art, there is an environmentally friendly glue and its preparation method with publication number CN108531125A. The present invention uses UV resin as a carrier and adjusts the formula to prepare environmentally friendly glue. The environmentally friendly glue includes the following raw materials in mass percentage: UV resin 50%-70%, monomer 5%-25%, and active diluent 10%-30%. The preparation method of the environmentally friendly glue is: UV resin, monomer, and active diluent are added to the reactor in sequence and stirred evenly. The reaction process is stirred for 20-60 minutes to obtain the required environmentally friendly glue. The production process is simple and easy, there is no organic volatile emission, it is environmentally friendly, and suitable for industrial production. The environmentally friendly glue in the above document is suitable for composite pasting of flexible packaging materials, and the characteristics of rapid curing are used to improve production efficiency and product quality; the electron beam curing method is adopted, and there is no need to set up a too long heating oven, which greatly reduces the production site.

[0004] In the actual production process of glue, even if the raw materials are added in sequence through the reactor and stirred evenly in the reactor, the amount and time of addition need to be accurately controlled when the glue raw materials are added in sequence. Traditional preparation equipment cannot control the time of dripping according to the different raw material ratios and components, which can easily lead to uneven dripping distribution, poor dispersion of the dripping material, and excessive reaction speed due to high local concentration.

[0005] Therefore, the present invention proposes a double-sided tape and processing equipment specially used for computer embroidery to solve the problem that traditional preparation equipment cannot control the dripping time according to different raw material ratios, which easily leads to uneven dripping distribution and poor dispersibility of the dripping material. The quality of the prepared glue can be enhanced, and the double-sided tape can be reused multiple times. The double-sided tape has strong adhesion and is not easy to fall off. It is not easy to break when torn after being attached to the surface of an object, and the base material itself has higher tensile strength. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention aims to provide a double-sided adhesive tape and processing equipment for computer embroidery, which has the advantages of being easy to stick and tear.

[0007] To achieve the above object, the present invention provides the following technical solution: a double-sided tape for computer embroidery, comprising a double-sided tape body, wherein the double-sided tape body comprises the following structural layers and corresponding materials: Release layer: choose double-sided release paper with a weight of 80-120g / ㎡; First adhesive layer: coated with self-developed acrylic pressure-sensitive adhesive, with a coating thickness of 20-30μm; Sizing layer: Apply water-based sizing with a coating thickness of 5-10 μm; Base material layer: Choose cotton paper with a weight of 14-18g / ㎡; Lower slurry layer: Apply water-based slurry with a coating thickness of 5-10μm; Second adhesive layer: coated with self-developed acrylic pressure-sensitive adhesive, with a coating thickness of 60-100μm; The self-developed acrylic pressure-sensitive adhesive is prepared by the following steps: Step 1: Preparation of original glue: A. Use a reactor to coat the self-developed acrylic pressure-sensitive adhesive material on the double-sided tape for computer embroidery, and introduce sufficient nitrogen to exhaust the air, with a flow rate of 5-6m³ / h; B. Evenly mix 295-305 parts of ethyl acetate, 160-170 parts of isooctyl acrylate, 110-120 parts of butyl acrylate, 10-13 parts of acrylic acid, 0.5-1.5 parts of hydroxyethyl acrylate and 10-15 parts of vinyl acetate; C. Take half of the mixture as the base material, add 0.15-0.3 parts of AIBME, raise the temperature to 58°C for polymerization reaction, control the temperature at 60±1°C during the reaction, and react for 1 hour; D. Add 0.5-1 part of AIBME to the remaining half of the mixture for dropwise reaction at 61-63° C. for 80-90 minutes; E. After the addition is complete, keep warm at 61-63°C for 30 minutes; F. Add vinyl acetate dropwise at a temperature of 61-63°C for 15-20 minutes. After the addition is complete, keep the temperature at 61-63°C for 1 hour. G. Add 0.1-0.15 parts of AIBME and continue to keep warm at 61-63°C for 1.5 hours; H. Add 0.2-0.25 parts of AIBME, raise the temperature to 63-65°C and keep warm for 2 hours, then cool and discharge; Step 2: Preparation of finished glue: The glue formula for surface A is prepared with 100 parts of original glue, 4-8 parts of BT-11 resin, 20-25 parts of ethyl acetate, and 0.8-1.2 parts of L-75 curing agent. The resulting glue has the characteristics of low 180° peeling force and good initial adhesion; the glue formula for surface B is prepared with 100 parts of original glue, 20-25 parts of BT-11 resin, 35-40 parts of ethyl acetate, and 1.2-1.6 parts of isocyanate curing agent. The resulting glue has the characteristics of high 180° peeling force and good initial adhesion.

[0008] A processing device for double-sided adhesive tape for computer embroidery, the reactor comprises a glue making reactor body and a raw material dropping mechanism, the raw material dropping mechanism comprises a dropping cylinder, the upper end of the glue making reactor body is connected with a dropping output pipe, the upper end of the dropping output pipe is sealed with a protective cone cover, the central inner surface of the protective cone cover is provided with a dropping tube, the upper end of the dropping tube is sealed with a dropping funnel, the outer surface of the dropping tube is sealed with the lower inner wall of the dropping cylinder, the lower inner wall of the dropping cylinder is provided with a mounting groove, the inner surface of the mounting groove is sealed with the upper end of the protective cone cover, the upper inner wall of the dropping cylinder is connected with a feeding port, a fixed circular plate is fixedly installed on the upper inner wall of the dropping cylinder, a movable circular plate is movably connected directly below the fixed circular plate, the outer surface of the movable circular plate is slidably connected with the inner wall of the dropping cylinder, a support plate is fixedly installed on the inner wall of the protective cone cover, and a dropping flow rate regulating mechanism is arranged on the support plate.

[0009] Preferably, an annular cover plate is integrally formed at the lower end of the fixed circular plate, a sealing plug is fixedly mounted on the fixed circular plate, eight groups of the sealing plugs are provided and are distributed in a circular array about the longitudinal center axis of the fixed circular plate, liquid inlet circular holes are provided on the inner wall of the fixed circular plate, six groups of the liquid inlet circular holes are provided and are arranged in a circular array about the center axis of the fixed circular plate, a hollow plug is movably embedded on the lower outer surface of the sealing plug, and the hollow plug is fixedly mounted on the upper surface of the movable circular plate.

[0010] Preferably, a circular groove is provided on the central inner wall of the fixed circular plate, and the second electromagnetic block is fixedly installed on the inner cavity top surface of the circular groove, and the output end of the second electromagnetic block is electromagnetically connected to the first electromagnetic block.

[0011] Preferably, a center guide column is fixedly installed on the central inner surface of the movable circular plate, and the cross-section of the center guide column presents an "H"-shaped structure. A lower receiving groove and an upper receiving groove are respectively provided on the inner walls at the upper and lower ends of the center guide column. The electromagnetic block is detachably installed on the top surface of the inner cavity of the lower receiving groove, and an elastic wire is fixedly connected to the inner surface of the upper receiving groove, and the other end of the elastic wire is fixedly connected to the top surface of the inner cavity of the circular groove, and the upper outer surface of the center guide column is movably engaged with the inner wall of the circular groove.

[0012] Preferably, the dropping funnel and the dropping tube are integrally formed, and the dropping funnel as a whole has a structure that is wide at the top and narrow at the bottom. A guide rod is fixedly connected to the inner wall of the dropping funnel, and the guide rods are provided in four groups and are arranged in an array equidistantly about the central axis of the dropping funnel. A hollow floating capsule is slidably connected to the outer surface of the guide rod, and the hollow floating capsule is movably mounted on the inner annular surface of the dropping funnel.

[0013] Preferably, the drip flow rate regulating mechanism includes a limiting circular plate and a driving gear, the driving gear is rotatably mounted on the inner wall of the lower end of the dripping cylinder, the outer surface of the driving gear is meshed and rotatably engaged with a gear ring, the central inner surface of the gear ring is fixedly connected with a gear ring, the lower end of the gear ring is fixedly connected to the upper surface of the limiting circular plate, the lower surface of the limiting circular plate is movably connected to the upper surface of the support plate, one side of the limiting circular plate is fixedly connected with a swing connecting rod, the swing connecting rod extends to the outside of the protective cone cover, and the swing connecting rod is movably connected to the inner wall of the avoidance groove preset on the side wall of the protective cone cover.

[0014] Preferably, an arc-shaped groove is provided on the inner wall of the limiting circular plate, a guide column is movably connected to the inner surface of the arc-shaped groove, and a connecting rod is fixedly connected to the lower end of the guide column.

[0015] Preferably, a triangular sealing plate is fixedly mounted on the lower end of the connecting rod, and the connecting rod, triangular sealing plate and guide column are all provided in six groups and arranged in an array equidistantly about the center axis of the limiting circular plate, and the triangular sealing plate is composed of six equally divided fan-shaped plates.

[0016] Preferably, a limiting groove is provided on the inner wall of the support plate, an elastic block is fixedly connected to the inner surface of the limiting groove, the elastic block is in an "∞"-shaped block structure, the other end of the elastic block is fixedly connected to the outer surface of the connecting rod, and the outer surface of the connecting rod is slidably connected to the inner wall of the limiting groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The double-sided adhesive tape for computer embroidery proposed by the present invention is composed of a release layer, a first adhesive layer, an upper sizing layer, a substrate layer, a lower sizing layer, and a second adhesive layer, so that it can fix the upper and lower layers during the computer embroidery process, and is convenient for pasting and peeling. In addition, a unique raw glue preparation device is provided so that the temperature of the raw materials prepared by the raw glue can be evenly maintained within a temperature range of 60±1°C, thereby effectively improving the glue formation effect and improving the bonding effect of the finished product.

[0018] 2. The present invention proposes a processing device for a double-sided adhesive tape for computer embroidery. A raw material dropping mechanism is added to the top of the glue-making reaction kettle body to realize the continuous dripping of the glue-making mixture in batches, and the dripping flow rate regulating mechanism is used to facilitate adaptive adjustment according to the reaction process and the characteristics of the material; the dropping funnel and the dropping tube are used to realize the continuous dripping of the raw materials, which further solves the problems of uneven dripping distribution, poor dispersion of the dripping material, and excessive reaction speed caused by local high concentration in traditional preparation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the double-sided adhesive tape for computer embroidery of the present invention; Figure 2 It is a structural schematic diagram of the glue making reaction kettle body of the present invention; Figure 3 It is a partial structural schematic diagram of the glue making reaction kettle body of the present invention; Figure 4 It is a half-section structural schematic diagram of the raw material dropping mechanism of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A; Figure 6 It is a schematic diagram of the separation cross-sectional structure of the dripping cylinder and the protective cone cover of the present invention; Figure 7 It is a structural schematic diagram of the combined state of the fixed circular plate and the movable circular plate of the present invention; Figure 8 It is a schematic diagram of the combined cross-sectional structure of the fixed circular plate and the movable circular plate of the present invention; Fig. 9 It is a schematic diagram of the separation cross-sectional structure of the fixed circular plate and the movable circular plate of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the connection between the protective cone cover and the drip flow rate regulating mechanism of the present invention; Fig.11 It is a schematic diagram of the disassembled structure of the drip flow rate regulating mechanism of the present invention; Fig.12 It is a schematic diagram of the partial connection structure between the support plate and the drip flow regulating mechanism of the present invention.

[0020] In the figure: 1, double-sided tape body; 2, glue making reactor body; 3, dripping output pipe; 4, dripping cylinder; 41, feeding port; 5, fixed circular plate; 50, annular cover plate; 51, sealing plug; 52, liquid inlet hole; 6, movable circular plate; 61, hollow plug; 62, center guide column; 620, lower receiving groove; 6201, electromagnetic block 1; 6200, upper receiving groove; 621, elastic wire; 622, electromagnetic block 2 ; 7. Dropping funnel; 71. Dropping tube; 72. Guide rod; 73. Hollow floating bag; 40. Mounting groove; 8. Protective cone cover; 80. Avoidance groove; 81. Support plate; 810. Limiting groove; 10. Elastic block; 82. Limiting circular plate; 820. Arc groove; 821. Connecting column; 822. Gear ring; 823. Driving gear; 824. Swing connecting rod; 9. Connecting rod; 91. Triangular sealing plate; 92. Guide column. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] For example, see Figure 1-12 The present invention provides a technical solution: a double-sided tape for computer embroidery, including a double-sided tape body 1, the double-sided tape body 1 includes the following structural layers and corresponding materials: Release layer: choose double-sided release paper with a weight of 80-120g / ㎡; First adhesive layer: coated with self-developed acrylic pressure-sensitive adhesive, with a coating thickness of 20-30μm; Sizing layer: Apply water-based sizing with a coating thickness of 5-10 μm; Base material layer: Choose cotton paper with a weight of 14-18g / ㎡; Lower slurry layer: Apply water-based slurry with a coating thickness of 5-10μm; Second adhesive layer: coated with self-developed acrylic pressure-sensitive adhesive, with a coating thickness of 60-100μm; The self-developed acrylic pressure-sensitive adhesive is prepared by the following steps: Step 1: Preparation of original glue: A. Use a reactor to coat the self-developed acrylic pressure-sensitive adhesive material on the double-sided tape for computer embroidery, and introduce sufficient nitrogen to exhaust the air, with a flow rate of 5-6m³ / h; B. Evenly mix 295-305 parts of ethyl acetate, 160-170 parts of isooctyl acrylate, 110-120 parts of butyl acrylate, 10-13 parts of acrylic acid, 0.5-1.5 parts of hydroxyethyl acrylate and 10-15 parts of vinyl acetate; C. Take half of the mixture as the base material, add 0.15-0.3 parts of AIBME, raise the temperature to 58°C for polymerization reaction, control the temperature at 60±1°C during the reaction, and react for 1 hour; D. Add 0.5-1 part of AIBME to the remaining half of the mixture for dropwise reaction at 61-63° C. for 80-90 minutes; E. After the addition is complete, keep warm at 61-63°C for 30 minutes; F. Add vinyl acetate dropwise at a temperature of 61-63°C for 15-20 minutes. After the addition is complete, keep the temperature at 61-63°C for 1 hour. G. Add 0.1-0.15 parts of AIBME and continue to keep warm at 61-63°C for 1.5 hours; H. Add 0.2-0.25 parts of AIBME, raise the temperature to 63-65°C and keep warm for 2 hours, then cool and discharge; Step 2: Preparation of finished glue: The glue formula on the A side is prepared by using 100 parts of original glue, 4-8 parts of BT-11 resin, 20-25 parts of ethyl acetate, and 0.8-1.2 parts of L-75 curing agent. The obtained glue has the characteristics of low 180° peeling force and good initial adhesion; the glue formula on the B side is prepared by using 100 parts of original glue, 20-25 parts of BT-11 resin, 35-40 parts of ethyl acetate, and 1.2-1.6 parts of isocyanate curing agent. The obtained glue has the characteristics of high 180° peeling force and good initial adhesion; By setting up a double-sided tape consisting of a release layer, a first adhesive layer, an upper sizing layer, a base material layer, a lower sizing layer, and a second adhesive layer, it can fix the upper and lower layers during the computer embroidery process, and is convenient for pasting and peeling. By setting up a unique raw glue preparation device, the temperature of the raw materials for raw glue preparation can be evenly maintained within a temperature range of 60±1℃, thereby effectively improving the gluing effect and improving the bonding effect of the finished product.

[0023] Embodiment 2, refer to the attached Figure 1-12On the basis of the first embodiment, the present invention further proposes a processing device for double-sided adhesive tape for computer embroidery, wherein the reaction kettle comprises a glue-making reaction kettle body 2 and a raw material dropping mechanism, wherein the raw material dropping mechanism comprises a dropping cylinder 4, wherein the upper end of the glue-making reaction kettle body 2 is connected with a dropping output tube 3, wherein the upper end of the dropping output tube 3 is sealed with a protective cone cover 8, wherein a dropping tube 71 is arranged on the central inner surface of the protective cone cover 8, wherein a dropping funnel 7 is sealed on the upper end of the dropping tube 71, and an outer surface of the dropping tube 71 is connected with a lower end of the dropping cylinder 4. The inner wall is sealed and connected, a mounting groove 40 is provided on the inner wall of the lower end of the dripping cylinder 4, the inner surface of the mounting groove 40 is sealed and connected to the upper end of the protective cone cover 8, a feeding port 41 is connected through the inner wall of the upper end of the dripping cylinder 4, a fixed circular plate 5 is fixedly installed on the inner wall of the upper side of the dripping cylinder 4, a movable circular plate 6 is movably connected just below the fixed circular plate 5, and the outer surface of the movable circular plate 6 is slidably connected to the inner wall of the dripping cylinder 4, a support plate 81 is fixedly installed on the inner wall of the protective cone cover 8, and a drip flow rate adjustment mechanism is provided on the support plate 81: A raw material dropping mechanism is added to the top of the glue making reaction kettle body 2 to realize the continuous dripping of the glue making mixture in batches, and the dripping flow rate regulating mechanism is used to facilitate adaptive adjustment according to the reaction progress and the characteristics of the materials; the dropping funnel 7 and the dropping tube 71 are used to realize the continuous dripping of the raw materials, which further solves the problems of uneven dripping distribution, poor dispersion of the dripping material, and excessive reaction speed caused by local high concentration in traditional preparation equipment.

[0024] Embodiment 3, refer to the attached Figure 1-12 On the basis of the second embodiment, in order to realize the replenishment of the raw materials to be added in the dropping funnel 7: the lower end of the fixed circular plate 5 is integrally formed with an annular cover plate 50, and a sealing plug 51 is fixedly installed on the fixed circular plate 5. The sealing plug 51 is provided with eight groups and is arranged in a circular array about the longitudinal center axis of the fixed circular plate 5. The inner wall of the fixed circular plate 5 is provided with liquid inlet holes 52. The liquid inlet holes 52 are provided with six groups and are arranged in a circular array about the center axis of the fixed circular plate 5. The lower outer surface of the sealing plug 51 is movably embedded with a hollow plug 61, and the hollow plug 61 is fixedly installed on the upper surface of the movable circular plate 6; a circular groove is provided on the central inner wall of the fixed circular plate 5, and the inner part of the circular groove is provided with a circular groove. The second electromagnetic block 622 is fixedly installed on the top surface of the cavity, and the output end of the second electromagnetic block 622 is electromagnetically connected to the first electromagnetic block 6201; the central inner surface of the movable circular plate 6 is fixedly installed with a central guide column 62, and the cross-section of the central guide column 62 is an "H"-shaped structure. The inner walls of the upper and lower ends of the central guide column 62 are respectively provided with a lower receiving groove 620 and an upper receiving groove 6200. The first electromagnetic block 6201 is detachably installed on the inner cavity top surface of the lower receiving groove 620, and the inner surface of the upper receiving groove 6200 is fixedly connected with an elastic wire 621, and the other end of the elastic wire 621 is fixedly connected to the inner cavity top surface of the circular groove, and the upper outer surface of the central guide column 62 is movably embedded with the inner wall of the circular groove; When it is necessary to add additional raw materials, the feed port 41 on the upper end of the dripping cylinder 4 is connected to an external delivery pipeline and a delivery pump. When preparing the original rubber, the mixture is delivered to the top of the dripping cylinder 4 by the delivery pump. At this time, during the process of the mixture continuously being added to the top of the fixed circular plate 5, a part of the mixture enters the cavity formed by the closed fixed circular plate 5 and the movable circular plate 6 through the liquid inlet circular hole 52 opened on the fixed circular plate 5. The mixed liquid then generates a certain thrust on the movable circular plate 6. After receiving a certain pressure, the movable circular plate 6 moves downward. At this time, the movable circular plate 6 and the The fixed circular plates 5 are separated, and the movable circular plate 6 is connected to the fixed circular plate 5 through the elastic wire 621. When the movable circular plate 6 moves downward, the elastic wire 621 is stretched to produce elastic deformation. At the same time, the movable circular plate 6 is always stretched by the elastic wire 621 under the action of the mixture continuously fed from the upper part. Then, the mixture enters the bottom of the dripping cylinder 4 through the hollow plug 61, and then enters the inside of the dripping funnel 7 for replenishment. In this way, the electromagnetic valve on the inner side wall of the dripping tube 71 is opened to realize the continuous dripping operation in the glue-making reactor body 2; It should be noted that when the mixture is normally fed, the electromagnetic block 2 622 and the electromagnetic block 1 6201 are in a power-off state; once the external delivery pipe is accidentally broken or blocked, or the delivery pressure is insufficient, the delivery port 41 cannot be delivered, the movable circular plate 6 is no longer pushed by the pressure of the upper mixture, and restores its initial position under the elastic force storage of the elastic wire 621, and merges with the fixed circular plate 5 again. At this time, the sealing plug 51 and the hollow plug 61 are adapted and plugged to complete the plugging, resulting in the bottom of the drip tube 4 can no longer be supplemented with the mixture. At this time, the electromagnetic block 2 622 and the electromagnetic block 1 6201 are timely controlled. When power is turned on, the electromagnetic block 2 622 and the electromagnetic block 1 6201 repel each other with the same performance, so that the movable circular plate 6 is separated from the fixed circular plate 5 again under the action of the repulsive force, so that the hollow plug 61 can be opened, and then the timely replenishment of the mixture can be achieved; it should be noted again that in the state where the fixed circular plate 5 and the movable circular plate 6 are accidentally closed, even if the bottom of the dripping tube 4 is no longer replenished with the mixture at this time, the mixture replenished at the beginning can still be dripped for a period of time, which will not affect the continuous dripping of the mixture within the set time, thereby avoiding the situation where the glue reaction is incomplete due to inaccurate dripping time.

[0025] Embodiment 4, refer to the attached Figure 1-12 On the basis of the third embodiment, in order to achieve quantitative addition of the mixture: the dropping funnel 7 and the dropping tube 71 are integrally formed, the dropping funnel 7 as a whole is wide at the top and narrow at the bottom, the inner wall of the dropping funnel 7 is fixedly connected with a guide rod 72, the guide rod 72 is provided with four groups and is arranged in an array equidistantly about the central axis of the dropping funnel 7, the outer surface of the guide rod 72 is slidably connected with a hollow floating capsule 73, and the hollow floating capsule 73 is movably installed on the inner ring surface of the dropping funnel 7; Reference Figure 4 As shown, a hollow floating capsule 73 is added inside the dropping funnel 7, and a guide rod 72 is used as a guide member. By observing the floating degree of the hollow floating capsule 73, the ratio of the mixture waiting to be dropped in the dropping funnel 7 can be accurately judged, and the amount and time of the raw materials can be controlled according to the concentration and other characteristics of the mixture, so that the reaction process is stable and controllable.

[0026] Embodiment 5, refer to the attached Figure 1-12 On the basis of the fourth embodiment, in order to control the dripping time of the mixture, the flow rate of the output port of the dripping tube 71 is adjusted: the dripping flow rate regulating mechanism includes a limited circular plate 82 and a driving gear 823, the driving gear 823 is rotatably mounted on the inner wall of the lower end of the dripping tube 4, the outer surface of the driving gear 823 is meshed and rotated with a gear ring 822, the central inner surface of the gear ring 822 is fixedly connected with the gear ring 822, the lower end of the gear ring 822 is fixedly connected to the upper surface of the limited circular plate 82, the lower surface of the limited circular plate 82 is movably connected to the upper surface of the support plate 81, and one side of the limited circular plate 82 is fixedly connected with a swing link 824, the swing link 824 extends to the outer side of the protective cone cover 8, and the swing link 824 is connected to the avoidance gear preset on the side wall of the protective cone cover 8. The inner wall of the groove 80 is movably connected; an arc groove 820 is provided on the inner wall of the limiting circular plate 82, and a guide column 92 is movably connected to the inner surface of the arc groove 820, and the lower end of the guide column 92 is fixedly connected to the connecting rod 9; a triangular sealing plate 91 is fixedly installed on the lower end of the connecting rod 9, and the connecting rod 9, the triangular sealing plate 91 and the guide column 92 are all arranged in six groups and arranged in an equidistant array about the center axis of the limiting circular plate 82, and the triangular sealing plate 91 is composed of six equally divided fan-shaped plates; a limiting groove 810 is provided on the inner wall of the support plate 81, and an elastic block 10 is fixedly connected to the inner side surface of the limiting groove 810, and the elastic block 10 is an "∞"-shaped block structure, and the other end of the elastic block 10 is fixedly connected to the outer surface of the connecting rod 9, and the outer surface of the connecting rod 9 is slidably connected to the inner wall of the limiting groove 810; When it is necessary to adjust the dripping time according to the characteristics and reaction effects of different dripping raw materials, the dripping time can be determined by the dripping speed of the output port of the dripping tube 71, so that the size of the output port of the dripping tube 71 can be adjusted. Specifically, by controlling the driving gear 823 to drive, the gear ring 822 rotates, and in the rotating state, the limiting circular plate 82 is driven to rotate synchronously as a whole, and the arc groove 820 evenly opened on the limiting circular plate 82 is cooperated. During the rotation process, the arc groove 820 will drive the inner guide column 92 to move, and the guide column 92 moves horizontally along the inner wall of the limiting groove 810, so as to drive the multiple groups of connecting rods 9 and triangular sealing plates 91 to achieve variable diameter adjustment. When the tips of the six groups of triangular sealing plates 91 are completely closed, the output port of the dripping tube 71 is completely blocked, and the dripping of the raw materials is stopped. In this way, when the six groups of triangular sealing plates 91 gradually move outward, the diameter of the output port of the dripping tube 71 becomes larger, and the caliber of the dripping is increased, so that the dripping speed can be accelerated; It should be noted that when the limiting circular plate 82 is rotating, the distance moved by the connecting rod 9 can be determined by observing the rotation angle of the swing connecting rod 824, so as to accurately determine the size of the output port diameter of the drip tube 71.

[0027] The working principle and use process of the present invention are as follows: First, the feed port 41 through the upper end of the dripping cylinder 4 is connected to an external delivery pipeline and a delivery pump. When preparing the original rubber, the mixture is delivered to the top of the dripping cylinder 4 by the delivery pump. At this time, during the process of the mixture continuously being added to the top of the fixed circular plate 5, a part of the mixture enters the cavity formed by the closed fixed circular plate 5 and the movable circular plate 6 through the liquid inlet circular hole 52 opened on the fixed circular plate 5. The mixed liquid then generates a certain thrust on the movable circular plate 6. After receiving a certain pressure, the movable circular plate 6 moves downward. At this time, the movable circular plate 6 is separated from the fixed circular plate 5, and the movable circular plate 6 is connected to the fixed circular plate 5 through the elastic wire 621. When the movable circular plate 6 moves downward, the elastic wire 621 is stretched to produce elastic deformation. At the same time, the movable circular plate 6 is always stretched by the elastic wire 621 under the action of the mixture continuously fed from the upper part, so that the mixture enters the bottom of the dripping cylinder 4 through the hollow plug 61, and then enters the inside of the dripping funnel 7 for replenishment. In this way, the electromagnetic valve on the inner side wall of the dripping tube 71 is opened to realize the continuous dripping operation in the glue-making reactor body 2; A hollow floating capsule 73 is added to the inside of the adding funnel 7, and the guide rod 72 is used as a guide. By observing the floating degree of the hollow floating capsule 73, the ratio of the mixture waiting to be added in the adding funnel 7 can be accurately determined, and the addition time of the raw materials can be mastered according to the concentration and other characteristics of the mixture, so that the reaction process is stable and controllable; by controlling the driving gear 823 to drive, the gear ring 822 rotates, and in the rotating state, the limiting circular plate 82 is driven to rotate synchronously as a whole, and the arc grooves 820 evenly opened on the limiting circular plate 82 are matched. During the rotation process, the arc grooves 820 are evenly opened on the limiting circular plate 82. The shaped groove 820 will drive the inner guide column 92 to move, and the guide column 92 will move horizontally along the inner wall of the limiting groove 810, thereby driving multiple groups of connecting rods 9 and triangular sealing plates 91 to achieve variable diameter adjustment. When the tips of the six groups of triangular sealing plates 91 are completely closed, the output port of the dripping tube 71 is completely blocked, and the dripping of raw materials is stopped. In this way, when the six groups of triangular sealing plates 91 gradually move outward, the diameter of the output port of the dripping tube 71 becomes larger, and the diameter of the dripping is increased, so that the dripping speed can be accelerated; finally, after all the mixture is added, the material is cooled and discharged to prepare the gel.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-sided tape for computer embroidery, comprising a double-sided tape body (1), characterized in that: The double-sided tape body (1) comprises the following structural layers and corresponding materials: Release layer: choose double-sided release paper with a weight of 80-120g / ㎡; First adhesive layer: coated with self-developed acrylic pressure-sensitive adhesive, with a coating thickness of 20-30μm; Sizing layer: Apply water-based sizing with a coating thickness of 5-10 μm; Base material layer: Choose cotton paper with a weight of 14-18g / ㎡; Lower slurry layer: Apply water-based slurry with a coating thickness of 5-10μm; Second adhesive layer: coated with self-developed acrylic pressure-sensitive adhesive, with a coating thickness of 60-100μm; The self-developed acrylic pressure-sensitive adhesive is prepared by the following steps: Step 1: Preparation of original glue: A. Use a reactor to coat the self-developed acrylic pressure-sensitive adhesive material on the double-sided tape for computer embroidery, and introduce sufficient nitrogen to exhaust the air, with a flow rate of 5-6m³ / h; B. Evenly mix 295-305 parts of ethyl acetate, 160-170 parts of isooctyl acrylate, 110-120 parts of butyl acrylate, 10-13 parts of acrylic acid, 0.5-1.5 parts of hydroxyethyl acrylate and 10-15 parts of vinyl acetate; C. Take half of the mixture as the base material, add 0.15-0.3 parts of AIBME, raise the temperature to 58°C for polymerization reaction, control the temperature at 60±1°C during the reaction, and react for 1 hour; D. Add 0.5-1 part of AIBME to the remaining half of the mixture for dropwise reaction at 61-63° C. for 80-90 minutes; E. After the addition is complete, keep warm at 61-63°C for 30 minutes; F. Add vinyl acetate dropwise at a temperature of 61-63°C for 15-20 minutes. After the addition is complete, keep the temperature at 61-63°C for 1 hour. G. Add 0.1-0.15 parts of AIBME and continue to keep warm at 61-63°C for 1.5 hours; H. Add 0.2-0.25 parts of AIBME, raise the temperature to 63-65°C and keep warm for 2 hours, then cool and discharge; Step 2: Preparation of finished glue: The glue formula for surface A is prepared with 100 parts of original glue, 4-8 parts of BT-11 resin, 20-25 parts of ethyl acetate, and 0.8-1.2 parts of L-75 curing agent. The resulting glue has the characteristics of low 180° peeling force and good initial adhesion; the glue formula for surface B is prepared with 100 parts of original glue, 20-25 parts of BT-11 resin, 35-40 parts of ethyl acetate, and 1.2-1.6 parts of isocyanate curing agent. The resulting glue has the characteristics of high 180° peeling force and good initial adhesion.

2. A processing device for a double-sided tape for computer embroidery as claimed in claim 1, characterized in that: The reaction kettle comprises a glue making reaction kettle body (2) and a raw material dropping mechanism, wherein the raw material dropping mechanism comprises a dropping cylinder (4), the upper end of the glue making reaction kettle body (2) is connected through with a dropping output pipe (3), the upper end of the dropping output pipe (3) is sealedly connected with a protective cone cover (8), a dropping pipe (71) is arranged on the central inner surface of the protective cone cover (8), the upper end of the dropping pipe (71) is sealedly connected with a dropping funnel (7), the outer surface of the dropping pipe (71) is sealedly connected with the lower inner wall of the dropping cylinder (4), and the lower inner wall of the dropping cylinder (4) is opened. A mounting groove (40) is provided, the inner surface of the mounting groove (40) is sealedly connected to the upper end of the protective cone cover (8), the inner wall of the upper end of the dripping cylinder (4) is connected through a feeding port (41), a fixed circular plate (5) is fixedly installed on the inner wall of the upper side of the dripping cylinder (4), a movable circular plate (6) is movably connected directly below the fixed circular plate (5), the outer surface of the movable circular plate (6) is slidably connected to the inner wall of the dripping cylinder (4), a support plate (81) is fixedly installed on the inner wall of the protective cone cover (8), and a dripping flow rate regulating mechanism is provided on the support plate (81).

3. The processing equipment for double-sided tape for computer embroidery according to claim 2, characterized in that: An annular cover plate (50) is integrally formed at the lower end of the fixed circular plate (5), a sealing plug post (51) is fixedly mounted on the fixed circular plate (5), eight groups of the sealing plug posts (51) are arranged in a circular array about the longitudinal center axis of the fixed circular plate (5), the inner wall of the fixed circular plate (5) is provided with liquid inlet holes (52), six groups of the liquid inlet holes (52) are arranged in a circular array about the center axis of the fixed circular plate (5), a hollow plug post (61) is movably embedded on the lower outer surface of the sealing plug post (51), and the hollow plug post (61) is fixedly mounted on the upper surface of the movable circular plate (6).

4. The processing equipment for double-sided tape for computer embroidery according to claim 3 is characterized in that: A circular groove is provided on the central inner wall of the fixed circular plate (5), and a second electromagnetic block (622) is fixedly mounted on the inner cavity top surface of the circular groove, and an output end of the second electromagnetic block (622) is electromagnetically connected to the first electromagnetic block (6201).

5. The processing equipment for double-sided tape for computer embroidery according to claim 4 is characterized in that: A central guide column (62) is fixedly mounted on the central inner surface of the movable circular plate (6), and the cross-section of the central guide column (62) is an "H"-shaped structure. A lower receiving groove (620) and an upper receiving groove (6200) are respectively provided on the inner walls at the upper and lower ends of the central guide column (62). The electromagnetic block 1 (6201) is detachably mounted on the inner cavity top surface of the lower receiving groove (620), and an elastic wire (621) is fixedly connected to the inner surface of the upper receiving groove (6200). The other end of the elastic wire (621) is fixedly connected to the inner cavity top surface of the circular groove, and the upper outer surface of the central guide column (62) is movably engaged with the inner wall of the circular groove.

6. The processing equipment for double-sided tape for computer embroidery according to claim 2, characterized in that: The dropping funnel (7) and the dropping tube (71) are integrally formed. The dropping funnel (7) as a whole has a structure that is wide at the top and narrow at the bottom. A guide rod (72) is fixedly connected to the inner wall of the dropping funnel (7). The guide rods (72) are provided in four groups and are arranged in an array equidistantly about the central axis of the dropping funnel (7). The outer surface of the guide rod (72) is slidably connected to a hollow floating capsule (73). The hollow floating capsule (73) is movably mounted on the inner ring surface of the dropping funnel (7).

7. The processing equipment for double-sided tape for computer embroidery according to claim 2, characterized in that: The dripping flow rate regulating mechanism comprises a limiting circular plate (82) and a driving gear (823); the driving gear (823) is rotatably mounted on the inner wall of the lower end of the dripping cylinder (4); the outer surface of the driving gear (823) is meshed and rotatably engaged with a toothed ring (822); the central inner surface of the toothed ring (822) is fixedly connected with a toothed ring (822); the lower end of the toothed ring (822) is fixedly connected to the upper surface of the limiting circular plate (82); the lower surface of the limiting circular plate (82) is movably connected to the upper surface of the support plate (81); one side of the limiting circular plate (82) is fixedly connected with a swing link (824); the swing link (824) extends to the outer side of the protective cone cover (8); and the swing link (824) is movably connected to the inner wall of an avoidance groove (80) preset on the side wall of the protective cone cover (8).

8. The processing equipment for double-sided tape for computer embroidery according to claim 7, characterized in that: An arc-shaped groove (820) is provided on the inner wall of the limiting circular plate (82), a guide column (92) is movably connected to the inner surface of the arc-shaped groove (820), and a connecting rod (9) is fixedly connected to the lower end of the guide column (92).

9. The processing equipment for double-sided tape for computer embroidery according to claim 8, characterized in that: A triangular sealing plate (91) is fixedly mounted on the lower end of the connecting rod (9); the connecting rod (9), the triangular sealing plate (91) and the guide column (92) are all arranged in six groups and arranged in an array equidistantly about the center axis of the limiting circular plate (82); the triangular sealing plate (91) is composed of six equally divided sector-shaped plates.

10. The processing equipment for double-sided tape for computer embroidery according to claim 9, characterized in that: A limiting groove (810) is provided on the inner wall of the support plate (81), an elastic block (10) is fixedly connected to the inner surface of the limiting groove (810), the elastic block (10) is in an "∞" block structure, the other end of the elastic block (10) is fixedly connected to the outer surface of the connecting rod (9), and the outer surface of the connecting rod (9) is slidably connected to the inner wall of the limiting groove (810).

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