Double-sided adhesive tape sticking device

Abstract

The application discloses a double-sided adhesive tape sticking device which comprises a base plate and a double-sided adhesive tape unwinding mechanism, a roller assembly, a cutting mechanism and a cutting assembly which are installed on the base plate; the base plate is provided with a cushion block which is located on a passing track of the double-sided adhesive tape and is in abutting fit with the release paper of the double-sided adhesive tape; the device further comprises a tearing mechanism which comprises a tearing adhesive tape unwinding mechanism, a tearing assembly, a tearing adhesive tape winding mechanism and a first driving device which are all installed on the base plate; the tearing assembly comprises a movable block and a second driving device; the movable block is fixed on the second driving device; the second driving device can drive the movable block to move towards one side of the cushion block so as to make the movable block abut against the cushion block and move away from the cushion block; the movable block is provided with a working surface; the passing direction of the tearing adhesive tape on the working surface intersects with the passing direction of the double-sided adhesive tape on the cushion block. Compared with the prior art, the device can automatically tear the base material which is cut by the double-sided adhesive tape, the speed is high, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of adhesive application devices, specifically relating to a double-sided adhesive application device. Background Technology

[0002] Double-sided tape consists of an adhesive substrate and a release liner. It is widely used on various products, such as in packaging. In practice, rolls of double-sided tape are typically cut into strips for use.

[0003] The adhesive applicator provided by authorization announcement number CN222204288U includes a processing mechanism 40 for processing double-sided adhesive. The processing mechanism includes a mounting base plate 41, a blade rest 42, and an adhesive cutting assembly 43. The adhesive cutting assembly 43 cuts the substrate of the double-sided adhesive using a blade 433. The cut double-sided adhesive is then bonded to a movable seat 432 and separated from the release paper 12, forming an easy-tear opening. After forming the easy-tear opening, the double-sided adhesive is cut into strips and adhered to the product. When a certain amount of substrate is bonded to the movable seat 432, the substrate needs to be peeled off. Due to the obstruction of the blade 433, blade rest 42, and other structures, the substrate peeling process is inefficient, reducing production efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a double-sided adhesive applicator.

[0005] To achieve the above objectives, this utility model discloses a double-sided tape application device, including a substrate and a double-sided tape unwinding mechanism, a roller assembly, a cutting mechanism, and a tape cutting assembly mounted on the substrate. The substrate is provided with a pad, which is located on the winding path of the double-sided adhesive and abuts against the release paper of the double-sided adhesive. It also includes a tearing mechanism, which includes a tearing adhesive unwinding mechanism, a tearing assembly, a tearing adhesive winding mechanism, and a first driving device for driving the unwinding and winding of the tearing adhesive roll, all mounted on the substrate. The tearing assembly includes a movable block and a second driving device. The movable block is fixed on the second driving device. The second driving device can drive the movable block to move towards the pad to make the movable block abut against the pad, and to move away from the pad. The movable block has a working surface. After the tear adhesive unwinding mechanism unwinds the tear adhesive, it passes through the working surface to the tear adhesive winding mechanism. The winding direction of the tear adhesive on the working surface intersects with the winding direction of the double-sided adhesive on the pad block.

[0006] Preferably, the wrapping direction of the tear adhesive on the working surface is perpendicular to the wrapping direction of the double-sided adhesive on the pad, and the width of the working surface does not exceed the length of the cut substrate on the double-sided adhesive.

[0007] Preferably, the movable block is arranged opposite to the pad block, and the movable block moves linearly under the action of the second driving device.

[0008] Preferably, the second drive device is provided with a mounting plate, and the movable block is detachably connected to the mounting plate.

[0009] Preferably, the mounting plate is provided with a buffer element, which abuts against the pad block.

[0010] Preferably, the tear adhesive unwinding mechanism and the tear adhesive rewinding mechanism are respectively disposed on both sides of the substrate, and the substrate is provided with a through hole, which is located between the tear adhesive unwinding mechanism and the tear adhesive rewinding mechanism.

[0011] Preferably, the through hole is a strip-shaped hole, the width of which is greater than the width of the tear adhesive roll, and the rolls on the tear adhesive unwinding mechanism and the tear adhesive rewinding mechanism are both arranged opposite to the strip-shaped hole.

[0012] Preferably, the tearing mechanism is located below the pad.

[0013] Preferably, the first driving device is connected to the tear adhesive winding mechanism and is used to drive the tear adhesive winding mechanism to operate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: A tearing mechanism is installed, in which the movable block of the tearing component can move towards the pad block under the action of a second drive device, so that the movable block abuts against the pad block, and can also move away from the pad block. With this setup, when the cut substrate on the double-sided tape moves to the pad block, the second drive device drives the movable block to move until the tearing adhesive on the movable block adheres to the cut substrate on the double-sided tape. Then, the second drive device drives the movable block away from the pad block, and the tearing adhesive is rolled up, thereby tearing off the cut substrate from the double-sided tape to form an easy-tear opening. After tearing, the tearing adhesive winding mechanism rewinds, collecting the used tearing adhesive and moving the unused tearing adhesive to the working surface of the movable block for future use. When the entire roll of tearing adhesive is used up, a new roll is simply replaced. This tearing mechanism automatically adheres and tears the cut substrate from the double-sided tape, operates quickly, and improves production efficiency. Attached Figure Description

[0015] Figure 1 This is a front view of the double-sided adhesive applicator according to an embodiment; Figure 2 for Figure 1 A three-dimensional structural diagram of the center-cut adhesive assembly; Figure 3 for Figure 1 A three-dimensional structural diagram of the tearing mechanism; Figure 4 for Figure 1 A top view of a double-sided tape application device; Figure 5 for Figure 4 Sectional view of section AA; Substrate 100; Second pad 110; Through hole 120; Double-sided tape unwinding mechanism 200; Glue cutting assembly 300; first mounting plate 310; first through hole 311; first pad 320; first telescopic bar 330; first connecting block 340; second telescopic bar 350; second connecting block 360; cutter 370; Roller assembly 400; Drum 410; Tearing mechanism 500; tearing adhesive unwinding mechanism 510; tearing assembly 520; movable block 521; working surface 5211; second drive device 522; second mounting plate 523; third mounting plate 524; buffer 525; tearing adhesive winding mechanism 530; first drive device 540; Adjudication agency 600. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] A double-sided adhesive applicator, see [link / reference] Figures 1-5 The system includes a substrate 100 and a double-sided adhesive unwinding mechanism 200, an adhesive cutting assembly 300, a roller assembly 400, a tearing mechanism 500, and a cutting mechanism 600 mounted on the substrate 100. The double-sided adhesive unwinding mechanism 200 has a roll of double-sided adhesive material. The roller assembly 400 includes multiple rotatable rollers 410, the number and position of which can be set as needed. The adhesive cutting assembly 300 can cut the substrate on the double-sided adhesive. The tearing mechanism 500 can tear off the cut substrate on the double-sided adhesive to form an easy-tear opening. The cutting mechanism 600 is used to cut the double-sided adhesive with the easy-tear opening and adhere it to the product.

[0018] In this embodiment, the adhesive cutting assembly 300 includes a first mounting plate 310 and a first pad 320 fixed to the substrate 100, a first telescopic bar 330 fixed to the first mounting plate 310, a first connecting block 340 fixed to the output end of the first telescopic bar 330, a second telescopic bar 350 fixed to the first connecting block 340, a second connecting block 360 fixed to the second telescopic bar 350, and two cutting blades 370. The first mounting plate 310 is vertically arranged, and the first pad 320 is horizontally arranged on the top surface of the first mounting plate 310. The top of the first mounting plate 310 has a first through hole 311 for double-sided adhesive to pass through, and the double-sided adhesive passes through the first through hole 311 and then wraps around to subsequent components. Preferably, the top of the first through hole 311 extends to the top surface of the first mounting plate 310, so that after the double-sided adhesive passes through the first through hole 311, it can adhere flat to the bottom surface of the first pad 320, facilitating subsequent cutting of the substrate. Both the first telescopic lever 330 and the second telescopic lever 350 are arranged vertically, enabling them to move the corresponding connecting blocks up and down. Both the first connecting block 340 and the second connecting block 360 are L-shaped. Two cutters 370 are fixed at intervals to the top surface of the second connecting block 360 along the length of the first pad 320 (i.e., the direction in which the double-sided adhesive passes through the bottom surface of the first pad 320), located directly below the first pad 320. The first telescopic lever 330 can move the first connecting block 340 up and down, thereby moving the entire structure mounted on the first connecting block 340 up and down. The second telescopic lever 350 is selected as a cylinder with high moving precision. When the first telescopic lever 330 moves the cutter to the position where it will cut the double-sided adhesive, the second telescopic lever 350 drives the second connecting block 360 to move, allowing the cutter 370 to accurately cut the substrate of the double-sided adhesive. Through the cooperation of the first and second cylinders, both the moving speed and cutting precision of the cutter 370 are ensured, avoiding cutting the release paper. After cutting, the substrate on the double-sided tape located between the two cutters 370 is cut off, and it can be torn off to form an easy-tear opening, which will be explained later.

[0019] A second pad 110 is provided on the substrate 100. This pad, like the aforementioned pads, is rectangular. The second pad 110 is specifically positioned between two rollers 410. The double-sided adhesive roll passes through the cutting assembly 300, rollers 410, the second pad 110, and rollers 410 until it reaches the cutting mechanism 600. This passing path is the double-sided adhesive's winding trajectory. When the double-sided adhesive passes through the second pad 110, the release liner of the double-sided adhesive adheres flat to the bottom surface of the second pad 110, with the substrate facing downwards. The cut substrate portion of the double-sided adhesive is torn off at the second pad 110.

[0020] The tearing mechanism 500 includes a tear adhesive unwinding mechanism 510, a tearing assembly 520, a tear adhesive rewinding mechanism 530, and a first driving device 540 for driving the unwinding and rewinding of the tear adhesive roll, all mounted on the substrate 100. The aforementioned tear adhesive functions to tear the cut substrate on double-sided tape, creating an easy-tear opening. The tear adhesive can be, for example, single-sided tape. The tearing assembly 520 includes a movable block 521 and a second driving device 522. Movable block 521 is fixed to the second driving device 522. The second driving device 522 can drive movable block 521 to move towards the second pad 110, so that movable block 521 abuts against the second pad 110 to achieve adhesion between the tearing adhesive and the cut double-sided adhesive substrate; and drive movable block 521 away from the second pad 110 to tear the cut double-sided adhesive substrate from the double-sided adhesive, while moving movable block 521 away from the second pad 110 to avoid obstructing the unwinding of the double-sided adhesive roll. Movable block 521 has a working surface 5211, which is specifically the top surface of movable block 521, and is arranged opposite to the second pad 110. After the tearing adhesive unwinding mechanism 510 unwinds the tearing adhesive, the double-sided adhesive passes through the working surface 5211 and is wound into the tearing adhesive rewinding mechanism 530. The wrapping direction of the tear adhesive on the working surface 5211 intersects with the wrapping direction of the double-sided adhesive on the second pad 110, preferably perpendicularly. For example, in this embodiment, the entire double-sided adhesive is wrapped along... Figure 1 Unwind and rewind on the main view, tear the adhesive edge as follows Figure 1 The side view is unwound and rewound, and the direction of the tear adhesive on the working surface 5211 is perpendicular to the direction of the double-sided adhesive on the second pad 110.

[0021] When the cut substrate on the double-sided tape moves to below the second pad 110, the second drive device 522 drives the movable block 521 to move until the tearing adhesive on the movable block 521 adheres to the cut substrate on the double-sided tape. Then, the second drive device 522 drives the movable block 521 to move away from the second pad 110, and the tearing adhesive is rolled up, thereby tearing off the cut substrate on the double-sided tape to form an easy-tear opening. After tearing, the tearing adhesive winding mechanism 530 winds up the used tearing adhesive, and the unused tearing adhesive is moved to the working surface 5211 of the movable block 521 for future use. When the entire roll of tearing adhesive is used up, a new roll can be replaced. The automatic adhesion and tearing of the cut substrate on the double-sided tape by the tearing mechanism 500 is highly efficient and can improve production efficiency.

[0022] In this design, the tear-off adhesive roll is rotatable on the tear-off adhesive unwinding mechanism 510. When the movable block 521 moves towards the second pad 110, it pulls the tear-off adhesive to unwind. The first drive device 540 can be a motor, which is connected to the tear-off adhesive winding mechanism 530 to drive the winding mechanism 530 to rotate and the unwinding mechanism 510 to unwind, thereby tearing off the cut substrate from the double-sided tape. During the winding process, the movable block 521 moves away from the second pad 110.

[0023] In this embodiment, the second pad 110 is horizontally positioned, with its bottom surface engaging with the double-sided adhesive. The tearing mechanism 500 is located below the second pad 110, thus keeping the tearing mechanism 500 at a low height for easy replacement of the tearing adhesive.

[0024] The direction of the tear adhesive on the working surface 5211 of the movable block 521 is perpendicular to the direction of the double-sided adhesive on the second pad block 110. The width of the tear adhesive is smaller than the width of the working surface 5211, thus ensuring that the tear adhesive can be stably wrapped around the movable block 521. The width of the working surface 5211 of the movable block 521 does not exceed the length of the cut substrate on the double-sided adhesive, and the two are positioned opposite each other. When the tear adhesive adheres to the double-sided adhesive, the working surface 5211 of the movable block 521 does not extend beyond both sides of the cut double-sided adhesive, ensuring the reliability of the tearing process.

[0025] In this embodiment, the movable block 521 moves linearly up and down under the action of the second driving device 522. Specifically, the second driving device 522 is also a vertically arranged telescopic bar, and its output end is provided with a second mounting plate. The movable block 521 is detachably connected to the second mounting plate, for example, by bolt connection or snap-fit. The movable block 521 is detachably connected to the second mounting plate, so that when using different widths of tear adhesive later, the movable block 521 of the corresponding width can be replaced to improve adaptability. The second driving device 522 is provided with a third mounting plate fixed to it, and the tear adhesive unwinding mechanism 510 is fixed to the third mounting plate.

[0026] The mounting plate is equipped with a buffer element 525, such as a cylinder, which abuts against the second pad 110. When the second drive device 522 drives the second mounting plate to move upward so that the movable block 521 is about to contact the second pad 110, the buffer element 525 contacts the bottom surface of the second pad 110, thereby reducing the moving speed of the second mounting plate. This ensures that the movable block 521 and the second pad 110 can make stable and uniform contact, improving the bonding effect, while avoiding the problem of loosening or damage to the connection structure caused by direct rigid contact between the two.

[0027] Furthermore, there are multiple buffer elements 525, and the multiple buffer elements 525 are evenly distributed.

[0028] Since the double-sided adhesive unwinding mechanism 200, the adhesive cutting assembly 300, the roller assembly 400, and the cutting mechanism 600 are all located on one side of the substrate 100, this side of the substrate 100 has a large number of structures. If the entire tearing mechanism 500 were installed on the same side of the substrate 100, the size of the substrate 100 would need to be increased. Based on this, in this embodiment, the adhesive unwinding mechanism 510 and the adhesive rewinding mechanism 530 are respectively located on the front and back sides of the substrate 100. The substrate 100 has a through hole 120 located between the adhesive unwinding mechanism 510 and the adhesive rewinding mechanism 530, allowing the adhesive to be wound up to the adhesive rewinding mechanism 530 through the through hole 120. Compared to placing the entire tearing mechanism 500 on the front side of the substrate 100, placing the adhesive rewinding mechanism 530 on the back side of the substrate 100 makes full use of the space on the back side of the substrate 100, resulting in a smaller size of the substrate 100. The first driving device 540 is also disposed on the reverse side of the substrate 100.

[0029] In this embodiment, the double-sided adhesive unwinding / rewinding mechanism (double-sided adhesive unwinding mechanism 200, tear adhesive unwinding mechanism 510, tear adhesive rewinding mechanism 530), roller assembly 400, and cutting mechanism 600 can all adopt existing structures. For example, the unwinding mechanism, roller assembly 400, and cutting mechanism in patent announcement number CN222204288U can also achieve their corresponding functions in this application through existing structures. Therefore, the specific structure will not be described in detail.

[0030] The above description is only a preferred embodiment of the present utility model, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-sided adhesive applicator, comprising a substrate and a double-sided adhesive unwinding mechanism, a roller assembly, a cutting mechanism, and an adhesive cutting assembly mounted on the substrate, characterized in that: The substrate is provided with a pad, which is located on the winding path of the double-sided adhesive and abuts against the release paper of the double-sided adhesive. It also includes a tearing mechanism, which includes a tearing adhesive unwinding mechanism, a tearing assembly, a tearing adhesive winding mechanism, and a first driving device for driving the unwinding and winding of the tearing adhesive roll, all mounted on the substrate. The tearing assembly includes a movable block and a second driving device. The movable block is fixed on the second driving device. The second driving device can drive the movable block to move towards the pad to make the movable block abut against the pad, and to move away from the pad. The movable block has a working surface. After the tear adhesive unwinding mechanism unwinds the tear adhesive, it passes through the working surface to the tear adhesive winding mechanism. The winding direction of the tear adhesive on the working surface intersects with the winding direction of the double-sided adhesive on the pad block.

2. The double-sided adhesive applicator according to claim 1, characterized in that: The direction of the tear adhesive on the working surface is perpendicular to the direction of the double-sided adhesive on the pad, and the width of the working surface does not exceed the length of the cut substrate on the double-sided adhesive.

3. The double-sided adhesive applicator according to claim 1, characterized in that: The movable block is positioned opposite to the pad block, and the movable block moves linearly under the action of the second driving device.

4. The double-sided adhesive applicator according to claim 3, characterized in that: The second drive device is provided with a mounting plate, and the movable block is detachably connected to the mounting plate.

5. The double-sided adhesive applicator according to claim 4, characterized in that: The mounting plate is provided with a buffer element, which abuts against the pad block.

6. The double-sided adhesive applicator according to claim 1, characterized in that: The tear adhesive unwinding mechanism and the tear adhesive rewinding mechanism are respectively located on both sides of the substrate. The substrate has through holes located between the tear adhesive unwinding mechanism and the tear adhesive rewinding mechanism.

7. The double-sided adhesive applicator according to claim 6, characterized in that: The through hole is a strip-shaped hole, and the width of the strip-shaped hole is greater than the width of the tear adhesive roll. The rolls on the tear adhesive unwinding mechanism and the tear adhesive winding mechanism are both arranged opposite to the strip-shaped hole.

8. The double-sided adhesive applicator according to claim 1, characterized in that: The tearing mechanism is located below the pad.

9. The double-sided adhesive applicator according to claim 1, characterized in that: The first driving device is connected to the tear adhesive winding mechanism and is used to drive the tear adhesive winding mechanism to operate.

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