Color gel coat preparation device and method

Abstract

The present invention belongs to the technical field of gel coat resin preparation, and provides a color gel coat preparation device and method, the device comprises a preparation box, an upper cover matched on the top of the preparation box, a transmission shaft vertically distributed in the preparation box and coaxially distributed with the preparation box, a driving motor arranged on the upper cover and connected to the upper shaft of the transmission shaft, a mixing mechanism fixedly mounted on the transmission shaft, a plurality of auxiliary material openings are opened on the upper side wall of the preparation box along the circumferential direction, and a grinding mechanism is arranged on the transmission shaft, which rotates relative to the transmission shaft and matches with the plurality of auxiliary material openings. The existing problem that the prepared color gel coat has a grainy feel and a large roughness due to the insufficient fineness of the auxiliary material, thus failing to meet the qualified requirements is solved; by arranging the grinding mechanism in the preparation box, the preparation process has a grinding function, and there is no need to grind the auxiliary material by a separate grinding device, thereby improving the preparation efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of gel coat resin preparation, and in particular relates to a device and method for preparing a colored gel coat. Background Art

[0002] Gel coat resin is a special resin for making the gel coat layer of FRP products. It is a special variety of unsaturated polyester and is mainly used on the surface of resin products as a continuous thin layer. Colored gel coat is made by adding color paste to the natural color gel coat. For example, Chinese application number CN201310025896.4 discloses a colored gel coat for sanitary ware and a preparation method thereof. The colored gel coat for sanitary ware is made of the following components in parts by weight: 100 parts of base resin, 8 to 20 parts of styrene, 10 to 30 parts of functional filler, 2 to 3 parts of thixotropic agent, 0.12 to 0.2 parts of thixotropic stabilizer, 0.6 to 1.2 parts of surface additive, 10 to 20 parts of color paste, and 0.1 to 0.4 parts of accelerator. The preparation method is as follows: weigh each component according to the formula for use; first put the base resin into a dispersion kettle, add the functional filler under stirring, disperse after adding, then add the thixotropic stabilizer, then add the thixotropic agent under stirring, disperse after adding, and obtain the base gel coat; add color paste, styrene, surface additive and accelerator to the base gel coat, stir evenly to obtain the color gel coat for sanitary ware. The color gel coat for sanitary ware of the present invention not only has rich colors, but also has excellent resistance to cold and hot shock.

[0003] However, the fineness of the auxiliary materials in the current color gel coat preparation process does not meet the requirements, resulting in the prepared color gel coat having a granular feel and high roughness, thus failing to meet the qualified requirements. In addition, the equipment in the existing color gel coat preparation process does not have a grinding function, and the auxiliary materials need to be ground by separate grinding equipment, which increases the preparation cost and affects the preparation efficiency. Summary of the invention

[0004] The present invention provides a device and method for preparing a colored gel coat, aiming to solve the problems in the above-mentioned background technology.

[0005] The present invention is implemented as follows: a color gel coat preparation device comprises a preparation box, an upper cover matched with the top of the preparation box, a transmission shaft vertically distributed in the preparation box and coaxially distributed with the preparation box, a driving motor arranged on the upper cover and connected to the upper shaft of the transmission shaft, and a mixing mechanism fixedly mounted on the transmission shaft, a plurality of auxiliary material openings are opened on the upper side wall of the preparation box along the circumferential direction, a grinding mechanism is arranged on the transmission shaft, which rotates relative to the transmission shaft and matches with the plurality of auxiliary material openings, and a driving mechanism is arranged at the bottom of the upper cover, which drives the grinding mechanism to rotate circumferentially to achieve switching and matching between the plurality of auxiliary material openings;

[0006] The grinding mechanism comprises a circular grinding box rotatably mounted on a transmission shaft and connected to the driving mechanism, and a grinding assembly arranged inside the circular grinding box and fixedly connected to the transmission shaft. A material receiving port cooperating with a plurality of auxiliary material ports is provided on the side wall of the circular grinding box, and the bottom of the circular grinding box is a rotatable opening structure;

[0007] A plurality of positioning baffles cooperating with the side walls of the material receiving ports are hingedly connected to the side walls of the preparation box body and are located on the same side of the plurality of auxiliary material ports, and the plurality of positioning baffles have an automatic reset function;

[0008] The driving mechanism includes a transmission gear which is highly connected to the circular grinding box and coaxially distributed, an incomplete transmission gear meshingly connected to the transmission gear, and a rotating rod which is rotatably mounted on the upper cover through a bearing and whose lower end extends into the preparation box body, the upper rod portion of the rotating rod is provided with a driving grip, and the lower rod end of the rotating rod is coaxially connected to the incomplete transmission gear.

[0009] Preferably, the mixing mechanism comprises a horizontal mixing and stirring plate and a horizontal mixing and stirring rod fixedly connected to the transmission shaft and uniformly distributed along the circumference, and the horizontal mixing and stirring plate is located below the horizontal mixing and stirring rod.

[0010] Preferably, the bottom of the circular grinding box is symmetrically hinged with two bottom plates both of which are semicircular in structure, the hinge shafts of the two bottom plates are connected to a rotating motor, and the upper plate surfaces of the two bottom plates are grinding plate surfaces distributed in a fan shape.

[0011] Preferably, the grinding assembly includes a swivel seat that slides with the circular grinding box and is fixedly connected to the transmission shaft, a push plate and a grinding roller that are arranged on the swivel seat and distributed side by side, and the bottom height of the push plate is higher than the bottom end height of the grinding roller.

[0012] Preferably, the central angle corresponding to the toothed portion on the incomplete transmission gear is consistent with the included angle of two adjacent auxiliary material openings.

[0013] A method for preparing a colored gel coat, using a colored gel coat preparation device, comprises the following steps:

[0014] Step (i) First, prepare the box in an open state, pour the matrix resin from the upper open mouth, and cover the upper cover, then start the drive motor to drive the transmission shaft to rotate counterclockwise, and at the same time, through the rotating ring seat, the push plate and the grinding roller rotate counterclockwise synchronously with the transmission shaft;

[0015] Step (ii) Initially, the material receiving port on the circular grinding box is aligned with the first auxiliary material port in the counterclockwise direction;

[0016] Step (iii) the functional filler is poured from the first auxiliary material port, enters the circular grinding box through the material receiving port and is collected at the material receiving port, and the push plate pushes the functional filler and spreads it in the circular grinding box when it rotates, and then the grinding roller grinds the spread functional filler;

[0017] Step (iv) After the functional filler is ground to a certain degree, the motor is turned to drive the bottom plate to rotate and open, and the ground functional filler is poured into the base resin below, and the mixing mechanism stirs and mixes the base resin and the functional filler;

[0018] Step (V) The operator holds the driving grip part and rotates the rotating rod clockwise, so that the incomplete transmission gear meshes with the transmission gear and rotates once. The transmission gear drives the circular grinding box to rotate counterclockwise by a certain angle, so that the material receiving port is matched to the next auxiliary material port. When the side of the material receiving port contacts and fits with the positioning baffle, the material receiving port and the auxiliary material port are matched in place. Therefore, when the operator feels an obstruction when rotating, it means that the material receiving port has been matched with the auxiliary material port, and the rotation can be stopped at this time;

[0019] Step (six) Repeat steps (three) to (five), pour the thixotropic stabilizer, color paste, styrene, surface additives and accelerator into the preparation box in the order of the remaining auxiliary material ports, grind them first and then mix them, and finally make the color gel coat.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: a device and method for preparing a colored gel coat of the present invention, through a plurality of auxiliary material openings arranged on the upper side wall of a preparation box body and a grinding mechanism located in the preparation box body and corresponding to the auxiliary material openings, realizes that before the auxiliary materials are mixed and prepared, they are first subjected to a grinding process to be ground to a required fineness, thereby solving the problem that the prepared colored gel coat has a grainy feel and high roughness due to insufficient auxiliary material fineness, thus failing to meet the qualified requirements; by arranging the grinding mechanism in the preparation box body, the preparation process has a grinding function, and there is no need to grind the auxiliary materials by a separate grinding device, thereby improving the preparation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal main structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal left-side structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the internal top view structure of the present invention;

[0025] Figure 5It is a schematic diagram of the structure of the mixing mechanism in the present invention;

[0026] Figure 6 It is a schematic diagram of the internal structure of the circular grinding box in the present invention.

[0027] In the figure: 1. preparation box; 2. upper cover; 3. transmission shaft; 4. driving motor; 5. auxiliary material port; 6. horizontal mixing stirring plate; 7. horizontal mixing stirring rod; 8. circular grinding box; 9. material receiving port; 10. bottom plate; 11. rotating motor; 12. rotating ring seat; 13. pushing plate; 14. grinding roller; 15. positioning baffle; 16. transmission gear; 17. incomplete transmission gear; 18. rotating rod; 19. driving grip. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] See also Figure 1-6 The present invention provides a technical solution: a color gel coat preparation device, which is mainly composed of a preparation box 1, an upper cover 2, a transmission shaft 3, a drive motor 4, a mixing mechanism, a grinding mechanism, a driving mechanism, etc.

[0030] The preparation box 1 is a circular open structure, and five auxiliary material ports 5 are opened on the upper side wall of the preparation box 1 in the circumferential direction. The angle between two adjacent auxiliary material ports 5 is 30°, and the five auxiliary material ports 5 are used to fill functional fillers, thixotropic stabilizers, color pastes, styrene, surface additives and promoters. In addition, the five auxiliary material ports 5 are also provided with matching port covers (not shown in the figure), which are used to keep the preparation box 1 in a sealed state during reaction preparation; the upper cover 2 is a circular plate-like structure, and the upper cover 2 is arranged on the top of the preparation box 1 and can be removed from the preparation box 1; the transmission shaft 3 is vertically distributed inside the preparation box 1, and the transmission shaft 3 is colinear with the vertical center axis of the preparation box 1, and the transmission shaft The upper end of 3 is mounted on the upper cover 2 through a bearing; the driving motor 4 is fixedly mounted on the top of the upper cover 2 and is coaxially connected to the transmission shaft 3, and the driving motor 4 provides power to the transmission shaft 3 to drive it to rotate; the mixing mechanism is fixedly connected to the middle and lower shafts of the transmission shaft 3, and can rotate synchronously with the transmission shaft 3, and is used to implement mixing and stirring to prepare the gel coat; the grinding mechanism is rotatably mounted on the upper shaft of the transmission shaft 3, and a material receiving port 9 matching with five auxiliary material ports 5 is provided on the grinding mechanism; the driving mechanism is arranged on the upper cover 2 and is connected to the grinding mechanism, and is used to drive the grinding mechanism to intermittently rotate around the central axis of the transmission shaft 3, and each rotation angle is 30°.

[0031] As a further improvement of this embodiment, the mixing mechanism includes a horizontal mixing and stirring plate 6 and a horizontal mixing and stirring rod 7 fixedly connected to the transmission shaft 3 and evenly distributed along the circumference, and the horizontal mixing and stirring plate 6 is located below the horizontal mixing and stirring rod 7. The horizontal mixing and stirring plates 6 are provided in two groups, each group includes four and evenly distributed around the circumference, and the two groups of horizontal mixing and stirring plates 6 are divided into upper and lower distributions, and the horizontal mixing and stirring rod 7 is provided in two groups, each group includes five and evenly distributed around the circumference. The horizontal mixing and stirring plates 6 and the horizontal mixing and stirring rod 7 can better improve the mixing effect, so that the quality of the prepared color gel coat is guaranteed.

[0032] As a further improvement of this embodiment, the grinding mechanism includes a circular grinding box 8 rotatably mounted on the transmission shaft 3 and connected to the driving mechanism, and a grinding assembly arranged inside the circular grinding box 8 and fixedly connected to the transmission shaft 3. The circular grinding box 8 is rotatably mounted on the upper shaft of the transmission shaft 3 through a bearing, and the material receiving port 9 is arranged on the circumferential side wall of the circular grinding box 8. The bottom of the circular grinding box 8 is a rotatable opening structure, which is used to pour the auxiliary material into the preparation and mixing area below after the grinding is completed.

[0033] As a further improvement of this embodiment, the bottom of the circular grinding box 8 is symmetrically hinged with two bottom plates 10, both of which are semicircular in structure. The hinge axes of the two bottom plates 10 are connected to a rotating motor 11, and the upper plate surfaces of the two bottom plates 10 are fan-shaped grinding plate surfaces, which improves the grinding effect.

[0034] As a further improvement of this embodiment, the grinding assembly includes a swivel seat 12 that is slidably matched with the circular grinding box 8 and fixedly connected to the transmission shaft 3, a push plate 13 and a grinding roller 14 that are arranged on the swivel seat 12 and are distributed side by side, and the bottom height of the push plate 13 is higher than the bottom end height of the grinding roller 14. Distributed in the counterclockwise direction, the push plate 13 is located on the left side of the grinding roller 14. When rotating in the counterclockwise direction, the push plate 13 first contacts the auxiliary material, and the auxiliary material accumulated at the material receiving port 9 is first pushed away by the push plate 13 and laid flat on the bottom plate 10, and then the grinding roller 14 subsequently grinds the laid auxiliary material, ensuring that the auxiliary material can be evenly ground and the grinding effect is consistent.

[0035] As a further improvement of the present embodiment, five positioning baffles 15 correspondingly hingedly connected to the side walls of the preparation box 1 and located on the same side of the five auxiliary material ports 5 and cooperating with the side walls of the material receiving port 9, the five positioning baffles 15 have an automatic resetting function. Specifically, the rotating shaft of the positioning baffle 15 is equipped with a torsion spring.

[0036] As a further improvement of this embodiment, the driving mechanism includes a transmission gear 16 that is highly connected to the circular grinding box 8 and coaxially distributed, an incomplete transmission gear 17 that is meshed with the transmission gear 16, and a rotating rod 18 that is rotatably mounted on the upper cover 2 through a bearing and whose lower end extends into the preparation box 1, and the upper rod portion of the rotating rod 18 is provided with a driving gripping portion 19, and the lower rod end of the rotating rod 18 is coaxially connected to the incomplete transmission gear 17. The central angle angle corresponding to the toothed portion on the incomplete transmission gear 17 is consistent with the angle between the two adjacent auxiliary material ports 5. In this embodiment, the central angle angle corresponding to the toothed portion on the incomplete transmission gear 17 is 30°.

[0037] A method for preparing a colored gel coat, using the above-mentioned colored gel coat preparation device, comprises the following steps:

[0038] Step (i) First, prepare the box body 1 in an open state, pour the matrix resin from the upper opening, and cover the upper cover 2, then start the drive motor 4 to drive the transmission shaft 3 to rotate counterclockwise, and at the same time, through the swivel seat 12, the push plate 13 and the grinding roller 14 rotate counterclockwise synchronously with the transmission shaft 3.

[0039] At the beginning of step (ii), the material receiving port 9 on the circular grinding box 8 is aligned with the first auxiliary material port 5 in the counterclockwise direction.

[0040] Step (iii) The functional filler is poured in from the first auxiliary material port 5, enters the circular grinding box 8 through the material receiving port 9 and is collected at the material receiving port 9. The push plate 13 pushes and spreads the functional filler in the circular grinding box 8 as it rotates, and then the grinding roller 14 grinds the spread functional filler.

[0041] Step (iv) After the functional filler is ground to a certain degree, the motor 11 is rotated to drive the bottom plate 10 to rotate and open, and the ground functional filler is poured into the base resin below, and the mixing mechanism stirs and mixes the base resin and the functional filler.

[0042] Step (V) The operator holds the driving grip 19 and rotates the rotating rod 18 clockwise, so that the incomplete transmission gear 17 meshes with the transmission gear 16 and rotates once, and the transmission gear 16 drives the circular grinding box 8 to rotate counterclockwise by a certain angle, so that the material receiving port 9 is matched to the next auxiliary material port 5. When the side of the material receiving port 9 contacts and fits with the positioning baffle 15, the material receiving port 9 and the auxiliary material port 5 are matched in place. Therefore, when the operator feels an obstruction when rotating, it means that the material receiving port 9 has been matched with the auxiliary material port 5, and the rotation can be stopped at this time;

[0043] Step (six) Repeat steps (iii) to (v), pour the thixotropic stabilizer, color paste, styrene, surface additive and accelerator into the preparation box 1 in the order of the remaining auxiliary material ports 5, grind them first and then mix them, and finally make the color gel coat.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A color gel coat preparation device, characterized in that: The invention comprises a preparation box, an upper cover matched on the top of the preparation box, a transmission shaft vertically distributed in the preparation box and coaxially distributed with the preparation box, a driving motor arranged on the upper cover and connected to the upper shaft of the transmission shaft, and a mixing mechanism fixedly installed on the transmission shaft, a plurality of auxiliary material openings are opened on the upper side wall of the preparation box along the circumferential direction, a grinding mechanism is arranged on the transmission shaft, which rotates relative to the transmission shaft and matches with the plurality of auxiliary material openings, and a driving mechanism is arranged at the bottom of the upper cover, which drives the grinding mechanism to rotate circumferentially to realize switching and matching between the plurality of auxiliary material openings; The grinding mechanism comprises a circular grinding box rotatably mounted on a transmission shaft and connected to a driving mechanism, a grinding assembly arranged inside the circular grinding box and fixedly connected to the transmission shaft, a material receiving port cooperating with a plurality of auxiliary material ports is provided on a side wall of the circular grinding box, and the bottom of the circular grinding box is a rotatable opening structure; A plurality of positioning baffles cooperating with the side wall of the material receiving port are hingedly connected to the side wall of the preparation box body and located on the same side of the plurality of auxiliary material ports, and the plurality of positioning baffles have an automatic reset function; The driving mechanism includes a transmission gear which is highly connected to the circular grinding box and coaxially distributed, an incomplete transmission gear meshing with the transmission gear, a rotating rod which is rotatably mounted on the upper cover through a bearing and whose lower end extends into the preparation box, an upper rod portion of the rotating rod is provided with a driving gripping portion, and a lower rod end portion of the rotating rod is coaxially connected to the incomplete transmission gear; The grinding assembly includes a swivel seat that is slidably matched with the circular grinding box and fixedly connected to the transmission shaft, a push plate and a grinding roller that are arranged on the swivel seat and distributed side by side, and the bottom height of the push plate is higher than the bottom end height of the grinding roller; The central angle of the circle corresponding to the toothed portion on the incomplete transmission gear is consistent with the included angle of two adjacent auxiliary material openings.

2. A colored gel coat preparation device as claimed in claim 1, characterized in that: The mixing mechanism comprises a horizontal mixing and stirring plate and a horizontal mixing and stirring rod which are fixedly connected to the transmission shaft and evenly distributed along the circumference. The horizontal mixing and stirring plate is located below the horizontal mixing and stirring rod.

3. A colored gel coat preparation device as claimed in claim 2, characterized in that: The bottom of the circular grinding box is symmetrically hinged with two bottom plates both in a semicircular structure, the hinge shafts of the two bottom plates are connected with a rotating motor, and the upper plate surfaces of the two bottom plates are grinding plate surfaces distributed in a fan shape.

4. A method for preparing a colored gel coat, the method being applied to a colored gel coat preparation device as claimed in claim 3, characterized in that: The following steps are involved: Step (i): First, prepare the box in an open state, pour the matrix resin from the upper opening, and cover the upper cover, then start the drive motor to drive the transmission shaft to rotate counterclockwise, and at the same time, through the rotating ring seat, the push plate and the grinding roller rotate counterclockwise synchronously with the transmission shaft; Step (ii): Initially, the material receiving port on the circular grinding box is aligned with the first auxiliary material port in the counterclockwise direction; Step (iii): pour the functional filler from the first auxiliary material port, enter the circular grinding box through the material receiving port and gather at the material receiving port. When the push plate rotates and passes through, it will push and spread the functional filler in the circular grinding box, and then the grinding roller will grind the spread functional filler. Step (iv): after the functional filler is ground to a certain degree, the motor is turned to drive the bottom plate to rotate and open, and the ground functional filler is poured into the base resin below, and the mixing mechanism stirs and mixes the base resin and the functional filler; Step (V): The operator holds the driving grip and rotates the rotating rod clockwise, so that the incomplete transmission gear meshes with the transmission gear and rotates once. The transmission gear drives the circular grinding box to rotate counterclockwise by a certain angle, so that the material receiving port is matched to the next auxiliary material port. When the side of the material receiving port contacts and fits with the positioning baffle, the material receiving port and the auxiliary material port are matched in place. Therefore, if the operator feels an obstruction when rotating, it means that the material receiving port has been matched with the auxiliary material port, and the rotation can be stopped at this time; Step (six): Repeat steps (three) to (five), pour the thixotropic stabilizer, color paste, styrene, surface additive and accelerator into the preparation box in the order of the remaining auxiliary material ports, grind them first and then mix them, and finally make the color gel coat.

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