A glue coating device for processing plastic products

Abstract

This utility model discloses a coating device for processing plastic products, including a rectangular coordinate robotic arm and a coating assembly. The coating assembly includes a coating cavity body, a coating head, a feeding shaft, and a first driving component. The feeding shaft has a mixing plate and a spiral feeding plate arranged from top to bottom, with the mixing plate and the spiral feeding plate spaced apart. The coating head is coaxially arranged with the coating cavity body, and the feeding shaft passes through the coating cavity body and the coating head. The first driving component drives the feeding shaft to rotate. The coating cavity body has a feed joint, and the mixing plate is located near the feed joint for mixing materials. The spiral feeding plate is located near the coating head for extruding the adhesive. The technical solution of this utility model aims to reduce the consumable cost of the coating device and improve the stability and continuity of coating.

Description

Technical Field

[0001] This utility model relates to the field of adhesive coating equipment technology, and in particular to an adhesive coating device for processing plastic products. Background Technology

[0002] In the processing of plastic products, coating technology is used in bonding, sealing, and encapsulation. The coating equipment must ensure that the adhesive is uniformly and stably coated on the workpiece surface; therefore, the performance of the coating equipment directly affects product quality and production efficiency. Traditional coating technology typically uses pneumatic extrusion, but in applications requiring high precision and continuity, the uniformity of adhesive mixing and the stability of extrusion become key challenges.

[0003] Existing adhesive coating devices mostly employ independent mixing and extrusion structures. After mixing, the adhesive needs to be transferred to the extrusion mechanism, resulting in decreased adhesive flowability and a tendency for adhesive breakage or blockage. In addition, conventional pneumatic extrusion devices require frequent replacement of the dispensing head due to adhesive residue after curing, increasing consumable costs. Utility Model Content

[0004] The purpose of this invention is to provide a coating device for processing plastic products, which aims to reduce the consumable cost of the coating device and improve the stability and continuity of coating.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A glue-applying device for processing plastic products includes a rectangular coordinate robotic arm and a glue-dispensing assembly;

[0007] The glue injection assembly includes a glue cavity body, a glue head, a feeding shaft, and a first driving component;

[0008] The feeding shaft is provided with a mixing plate and a spiral feeding plate from top to bottom; the mixing plate and the spiral feeding plate are spaced apart; the glue head is coaxially arranged with the glue cavity body, and the feeding shaft passes through the glue cavity body and the glue head; the first driving member is used to drive the feeding shaft to rotate; the glue cavity body forms a feeding joint, the mixing plate is arranged near the feeding joint for mixing materials; the spiral feeding plate is arranged near the glue head for extruding the glue.

[0009] In one embodiment, the number of feed connectors is at least two.

[0010] In one embodiment, the mixing sheet has a bent portion, which, driven by the feeding shaft, allows the colloid to flow upward at an angle.

[0011] In one embodiment, the dispensing assembly further includes a second driving member connected to a cam, which can drive the cam to rotate; an end cap is also fixed to the end of the feeding shaft, the feeding shaft and the first driving member are engaged through a D-shaped shaft, and the cam is in contact with the end cap.

[0012] In one embodiment, a vision sensor is also included, and the dispensing assembly is fixedly connected to the vision sensor.

[0013] In one embodiment, the Cartesian coordinate robotic arm includes a Y-axis linear motor, an X-axis linear motor, and a Z-axis drive unit; the Z-axis drive unit is a linear cylinder.

[0014] In one embodiment, the system further includes a base, a first worktable, and a second worktable; the first worktable and the second worktable are slidably engaged with the base, and both the first worktable and the second worktable are used to hold the plastic product to be injected with adhesive.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model's adhesive coating device for plastic product processing integrates coaxial mixing and extrusion. Utilizing a mixing blade and a spiral feeding blade on the feeding shaft, it achieves dynamic mixing and continuous extrusion during shaft rotation, preventing colloid stratification or clogging. Simultaneously, the optimized structure of the spiral feeding blade stabilizes the internal pressure of the coating head, reducing colloid residue and enabling long-term use of the coating head. This reduces the frequency of replacement, lowering consumable costs while maintaining stable adhesive dispensing. Furthermore, the Cartesian coordinate robotic arm provides high-precision adhesive coating path control, making it suitable for processing high-requirement plastic products. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0019] Figure 1 This is a schematic diagram of an embodiment of the adhesive coating device for processing plastic products according to this utility model;

[0020] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0021] Figure 3 This is a cross-sectional view of an embodiment of the glue injection assembly of this utility model;

[0022] Figure 4 for Figure 1 A structural diagram from another angle;

[0023] Illustrations: 100. Glue application device for plastic product processing; 110. Cartesian coordinate robotic arm; 111. Y-axis linear motor; 112. X-axis linear motor; 113. Z-axis drive unit;

[0024] 120. Glue dispensing assembly; 121. Glue cavity body; 121a. Feed connector; 122. Glue head; 123. Feeding shaft; 1231. Mixing plate; 1231a. Bending part; 1232. Spiral feed plate; 124. First drive component; 125. Second drive component; 126. Cam; 127. End cap; 130. Vision sensor; 140. Base; 151. First worktable; 152. Second worktable. Detailed Implementation

[0025] To make the technical objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0027] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] This utility model provides a glue coating device 100 for processing plastic products.

[0029] Please see Figures 1 to 4 The plastic product processing adhesive applicator 100 includes a rectangular coordinate robotic arm 110 and an adhesive injection assembly 120.

[0030] The glue injection assembly 120 includes a glue cavity body 121, a glue head 122, a feeding shaft 123, and a first driving component 124.

[0031] The feeding shaft 123 is provided with a mixing plate 1231 and a spiral feeding plate 1232 from top to bottom; the mixing plate 1231 and the spiral feeding plate 1232 are spaced apart; the glue head 122 is coaxially arranged with the glue cavity body 121, and the feeding shaft 123 passes through the glue cavity body 121 and the glue head 122; the first driving member 124 is used to drive the feeding shaft 123 to rotate; the glue cavity body 121 forms a feed connector 121a, the mixing plate 1231 is arranged near the feed connector 121a and is used for mixing materials; the spiral feeding plate 1232 is arranged near the glue head 122 and is used for extruding the glue.

[0032] Specifically, the Cartesian coordinate robotic arm 110 can be a three-axis linear motion system, such as a linear motor, a ball screw module, or a belt drive mechanism, used to accurately position the adhesive application location.

[0033] The glue cavity body 121 can be a hollow cavity made of metal or high-strength plastic, forming a glue flow channel inside, and its internal shape is preferably cylindrical. The glue head 122 is coaxially arranged with the glue cavity body 121, and its material can be made of hard alloy. Its outlet shape can be set to round or flat according to the glue application requirements.

[0034] Furthermore, the feeding shaft 123 penetrates the glue cavity body 121 and the glue head 122. The mixing blade 1231 on the feeding shaft 123 can be an inclined paddle or a bent stirring blade to enhance the mixing effect of the glue. The spiral feeding blade 1232 is spirally wound on the feeding shaft 123, responsible for the stable extrusion of the glue. The first driving member 124 is used to drive the feeding shaft 123 to rotate. Specifically, the first driving member 124 is preferably a servo motor, which is connected to the feeding shaft 123 through a reduction mechanism to provide stable rotational power. Furthermore, the feed connector 121a is used to connect the glue supply pipeline and can provide a certain pressure to the glue to ensure smooth glue input.

[0035] It is understood that the technical solution of this embodiment, through the coaxially arranged glue cavity body 121 and glue head 122, and the segmented feeding shaft 123, achieves dynamic mixing and stable extrusion of the glue, solving the problems of uneven mixing and easy clogging of the glue head 122 in traditional devices. The setting of the mixing plate 1231 ensures the uniformity of the glue, and the spiral feeding plate 1232 maintains the extrusion pressure, making it less likely for glue to remain in the glue head 122 after long-term use, thereby reducing the replacement frequency of the glue head 122 and reducing consumable costs. At the same time, the Cartesian coordinate robotic arm 110 provides high-precision glue application path control, which is suitable for processing plastic products with high requirements.

[0036] In one embodiment, the number of feed connectors 121a is at least two. It is understood that by using multiple feed connectors 121a, different colloidal components can be dynamically mixed directly within the glue chamber body 121, eliminating the need for a premixing process. This improves mixing uniformity and avoids equipment blockage caused by the curing of premixed colloids. It is particularly suitable for the continuous production of two-component adhesives, while reducing reliance on external mixing equipment, simplifying the process, and lowering costs.

[0037] Please see Figure 3 In one specific embodiment, the mixing sheet 1231 has a bent portion 1231a, which, driven by the feeding shaft 123, allows the colloid to flow upward at an angle. Specifically, the bent portion 1231a significantly improves the uniformity of colloid mixing while achieving shear mixing.

[0038] Please continue reading. Figures 1 to 3 In another specific embodiment, the glue injection assembly 120 further includes a second drive member 125, which is connected to a cam 126 and can drive the cam 126 to rotate; the end of the feeding shaft 123 is also fixed with an end cap 127, the feeding shaft 123 and the first drive member 124 are engaged through a D-shaped shaft, and the cam 126 is in contact with the end cap 127.

[0039] Specifically, the second driving component 125 can be a servo motor, a stepper motor, or a oscillating cylinder, used to intermittently drive the cam 126; the end cover 127 is fixed to the end of the feeding shaft 123 and engages with the cam 126. The feeding shaft 123 is configured to transmit torque unidirectionally to the first driving component 124 via a D-shaped shaft, ensuring stable axial movement of the feeding shaft 123 when the cam 126 actuates. Preferably, the feeding shaft 123 and the first driving component 124 are axially engaged by axial rollers or a transition fit.

[0040] Specifically, when the first drive member 124 is working, the feeding shaft 123 rotates, the cam 126 is stationary, and the end cover 127 rotates with the shaft but does not move axially; when the first drive member 124 stops, the second drive member 125 starts, pushes the end cover 127 through the cam 126, and makes the feeding shaft 123 reciprocate axially to scrape off the residual glue on the inner wall of the glue cavity, prevent solidification and accumulation, break the internal stress of the glue, and avoid static delamination.

[0041] Preferably, the reciprocating stroke of the end cap 127 is not higher than the distance between the spiral feed plate 1232 and the feed inlet.

[0042] Please see Figure 1 The plastic product processing adhesive applicator 100 further includes a vision sensor 130, and the adhesive injection assembly 120 is fixedly connected to the vision sensor 130. It is understood that the vision sensor 130 improves the positioning accuracy of the adhesive applicator and enhances the adhesive application quality.

[0043] In one specific embodiment, the Cartesian coordinate robotic arm 110 includes a Y-axis linear motor 111, an X-axis linear motor 112, and a Z-axis drive unit 113; the Z-axis drive unit 113 is a linear cylinder. It is understood that using linear motors for the Y-axis and X-axis drives enables high-speed adhesive application. The Z-axis cylinder ensures rapid response in the vertical direction, reducing the risk of equipment failure.

[0044] Furthermore, the plastic product processing adhesive applicator 100 also includes a base 140 and a first worktable 151 and a second worktable 152; the first worktable 151 and the second worktable 152 are respectively slidably engaged with the base 140, and both the first worktable 151 and the second worktable 152 are used to place the plastic product to be coated with adhesive.

[0045] Understandably, setting up a first workbench 151 and a second workbench 152, with the two workbench alternating, can improve equipment utilization and optimize the curing time of the colloid.

[0046] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A glue-applying device for processing plastic products, characterized in that, Includes a Cartesian coordinate robotic arm and a glue dispensing assembly; The glue injection assembly includes a glue cavity body, a glue head, a feeding shaft, and a first driving component; The feeding shaft is provided with a mixing plate and a spiral feeding plate from top to bottom; the mixing plate and the spiral feeding plate are spaced apart; the glue head is coaxially arranged with the glue cavity body, and the feeding shaft passes through the glue cavity body and the glue head; the first driving member is used to drive the feeding shaft to rotate; the glue cavity body forms a feeding joint, the mixing plate is arranged near the feeding joint for mixing materials; the spiral feeding plate is arranged near the glue head for extruding the glue.

2. The adhesive coating device for processing plastic products as described in claim 1, characterized in that, The number of feed joints is at least two.

3. The adhesive coating device for processing plastic products as described in claim 2, characterized in that, The mixing sheet has a bent portion, which, driven by the feeding shaft, allows the colloid to flow upward at an angle.

4. The adhesive coating apparatus for processing plastic products as described in claim 3, characterized in that, The dispensing assembly also includes a second driving component, which is connected to a cam and can drive the cam to rotate; the end of the feeding shaft is also fixed with an end cap, the feeding shaft and the first driving component are engaged through a D-shaped shaft, and the cam is in contact with the end cap.

5. The adhesive coating apparatus for processing plastic products as described in claim 3, characterized in that, It also includes a vision sensor, and the glue injection assembly is fixedly connected to the vision sensor.

6. The adhesive coating apparatus for processing plastic products as described in claim 5, characterized in that, The rectangular coordinate robotic arm includes a Y-axis linear motor, an X-axis linear motor, and a Z-axis drive unit; the Z-axis drive unit is a linear cylinder.

7. The adhesive coating apparatus for processing plastic products as described in claim 6, characterized in that, It also includes a base, a first worktable, and a second worktable; the first worktable and the second worktable are slidably engaged with the base, and both the first worktable and the second worktable are used to place the plastic products to be injected with glue.

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