Zero-gravity mixing device for gypsum mortar production

Abstract

The utility model discloses a zero-gravity mixing device for gypsum mortar production, which belongs to the technical field of gypsum mortar production, and comprises a stirring box, two groups of symmetrically arranged movable scraping mechanisms are arranged in the stirring box, a guide mechanism capable of moving left and right is mounted on the movable scraping mechanisms, and the guide mechanism comprises two lifting rods. The bottom end of the lifting rod is fixedly connected with a sliding shaft, and one end of the sliding shaft is slidably connected with an arc-shaped guide plate. The device has the beneficial effects that a stirring mechanism and a guide mechanism are arranged, and a torsion spring and a limiting rod are arranged, so that stirring plates on the two sides can incline towards the middle during stirring, raw materials are thrown to the middle position in a stirring box, the gathering degree during raw material mixing is improved, and the mixing efficiency is improved; the concave surface of the guide plate always faces the middle position, and the raw materials in the air are guided to the middle position, so that the raw material mixing effect is further improved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gypsum mortar production, in particular to a weightless mixing device for gypsum mortar production. Background Art

[0002] Gypsum mortar is a new type of wall plastering material. It uses semi-hydrated gypsum as the base material, high-molecular polymer as the gel material, and inorganic fillers through dry mixing. It is an improved interior wall painting material, which changes the traditional habit of using cement as the gel material. It has excellent compatibility and adhesion with various base walls. A mixing device is required during the preparation of gypsum mortar.

[0003] After searching, the Chinese patent publication number CN218255882U discloses a semi-dry gypsum mortar gravity-free mixing device. The patent includes a mixing box and a base. One end of the mixing box is hinged to the top end of the base, and the top of the base is open. An adjustment mechanism for adjusting the angle of the mixing box is provided inside the base, and stirring columns are horizontally rotated at both ends of the bottom of the mixing box, and a rotating mechanism for rotating the two stirring columns is provided on the mixing box. Stirring rods are vertically rotated at both ends of the top of the mixing box, and worm gears are sleeved and fixed on the surfaces of the two stirring rods. A driving mechanism for driving the two worm gears to rotate is provided on the mixing box. The rotation of the second belt of the device will drive the rotation of the worm, the rotation of the worm will drive the rotation of the worm wheel, and the rotation of the worm wheel will drive the rotation of the stirring rod, so that the materials in the air can be mixed, thereby improving the mixing effect of the gypsum mortar. However, this device will cause the gypsum mortar raw materials to splash to the inner walls around and stick to the inner walls. In the prior art, during the process of gravity-free stirring and mixing of the gypsum mortar raw materials by the stirring shaft, the raw materials are thrown into the air from the bottom side, are dispersed in the horizontal direction, and the degree of aggregation in the mixing box is not high, which affects the mixing effect and production efficiency. Utility Model Content

[0004] The purpose of the present utility model is to provide a zero-gravity mixing device for gypsum mortar production in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A weightless mixing device for gypsum mortar production includes a mixing box, one side of the mixing box is fixedly connected to a power box, a power mechanism is arranged in the power box, two sets of oppositely arranged mixing mechanisms are installed inside the mixing box, the mixing mechanisms are used to mix the raw materials in the middle position of the mixing box, two sets of symmetrically arranged movable scraping mechanisms are arranged inside the mixing box, a guide mechanism that moves left and right is installed on the movable scraping mechanism, the movable scraping mechanism includes a reciprocating screw rod, a movable seat is threadedly connected to the reciprocating screw rod, the guide mechanism includes two lifting rods, the lifting rods are slidably connected to the top of the movable seat, the bottom end of the lifting rod is fixedly connected to a sliding shaft, and one end of the sliding shaft is slidably connected to an arc-shaped guide plate, and the guide plate is used to guide the raw materials in the air to the middle position of the mixing box.

[0007] Preferably, the guiding mechanism includes two racks, which are fixedly connected at the front and rear sides of the mixing box. The racks pass through the movable seat and the two are slidably connected. A gear shaft is rotatably connected inside the movable seat, and the other end of the gear shaft extends into the guide plate and is rotatably connected. The guide plate is fixedly connected with arc-shaped internal teeth, and the internal teeth are engaged with one end of the gear shaft extending into the guide plate.

[0008] Preferably, the rack is provided with several groups of meshing teeth, which mesh with one end of the gear shaft in the movable seat. When the movable seat translates left and right, the concave surface of the guide plate always points to the middle position inside the mixing box.

[0009] Preferably, a scraper for continuously scraping the inner wall of the mixing box is fixedly connected to one side of the movable seat.

[0010] Preferably, the stirring mechanism includes a stirring shaft, which is rotatably connected to the bottom of the stirring box. Several connecting seats are fixedly connected to the stirring shaft, the middle connecting seat is fixedly connected to the stirring plate, and the remaining connecting seats are fixedly connected to the connecting shaft. The connecting shaft on each connecting seat is arranged at a position away from the middle connecting seat, the connecting shaft is rotatably connected to the stirring plate, and a torsion spring is arranged between the connecting shaft and the stirring plate.

[0011] Preferably, a connecting rod is fixedly connected to one side of the connecting seat, and a limit rod is fixedly connected to the connecting rod for limiting the rotation angle of the stirring plate. The length of the connecting rod away from the middle connecting seat is greater than the length of the connecting rod close to the connecting seat away from the middle.

[0012] Preferably, the power mechanism includes an electric motor, which is fixedly connected to the power box, and the output shaft of the motor is connected to two first drive shafts for driving the reciprocating screw rods through a belt. The output shaft of the motor is fixedly connected to a driving gear, and a passive gear is engaged with one side of the driving gear. The driving gear and the passive gear are rotatably connected to one side of the mixing box, and the rotating parts of the driving gear and the passive gear are respectively connected to the second drive shaft through a belt, and the second drive shaft is used to drive the mixing shaft to rotate.

[0013] The beneficial effects are: a stirring mechanism and a guiding mechanism are provided, and through the setting of a torsion spring and a limit rod, the stirring plates at both sides can be tilted toward the middle during stirring, throwing the raw materials to the middle position inside the stirring box, thereby increasing the degree of aggregation of the raw materials during mixing and improving the mixing efficiency. At the same time, the movable seat moves on the upper part of the stirring box, and the concave surface of the guide plate is always facing the middle position, guiding the raw materials in the air to the middle position, further improving the raw material mixing effect and improving production efficiency.

[0014] Additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of a zero-gravity mixing device for producing gypsum mortar according to the present invention;

[0017] Figure 2 This is a front cross-sectional view of a weightless mixing device for gypsum mortar production according to the present invention;

[0018] Figure 3 This is a right side sectional view of a zero-gravity mixing device for gypsum mortar production according to the present invention;

[0019] Figure 4 This is a schematic diagram of the power mechanism of a zero-gravity mixing device for gypsum mortar production according to the present invention;

[0020] Figure 5 This is a schematic diagram of the interior of a mixing box of a zero-gravity mixing device for producing gypsum mortar according to the present invention;

[0021] Figure 6 This is a schematic diagram of the first connection between the mobile scraping mechanism and the guiding mechanism of the weightless mixing device for gypsum mortar production described in the utility model;

[0022] Figure 7 This is a second connection diagram of the mobile scraping mechanism and the guiding mechanism of the zero-gravity mixing device for gypsum mortar production described in the utility model;

[0023] Figure 8 This is a cross-sectional view of the position of the moving seat and rack of a zero-gravity mixing device for gypsum mortar production described in the utility model;

[0024] Figure 9This is a schematic diagram of the bottom position of a guide plate of a zero-gravity mixing device for gypsum mortar production according to the present invention;

[0025] Figure 10 This is a cross-sectional view of a guide plate of a zero-gravity mixing device for gypsum mortar production according to the present invention;

[0026] Figure 11 This is a schematic diagram of a stirring mechanism of a weightless mixing device for gypsum mortar production according to the present invention;

[0027] Figure 12 This is a schematic diagram of the connection of the stirring plates of a zero-gravity mixing device for gypsum mortar production according to the present invention;

[0028] Figure 13 This is a schematic diagram of the connection between the connecting shaft and the torsion spring of a zero-gravity mixing device for gypsum mortar production described in the utility model.

[0029] The accompanying drawings are explained as follows: 101, mixing box; 102, power box; 103, hopper; 104, discharge port; 201, motor; 202, first drive shaft; 203, driving gear; 204, driven gear; 205, second drive shaft; 301, stirring shaft; 302, connecting seat; 303, connecting shaft; 304, stirring plate; 305, torsion spring; 306, connecting rod; 307, limiting rod; 401, reciprocating screw; 402, moving seat; 403, scraper; 501, lifting rod; 502, sliding shaft; 503, guide plate; 504, reinforcing plate; 505, rack; 506, meshing teeth; 507, gear shaft; 508, internal teeth. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0032] The present invention will be further described below with reference to the accompanying drawings:

[0033] like Figure 1 — Figure 13As shown, a zero-gravity mixing device for gypsum mortar production includes a mixing box 101, a power box 102 is welded to one side of the mixing box 101, a hopper 103 is connected to the top of the mixing box 101 by bolts, a discharge port 104 is provided on the side of the mixing box 101 away from the power box 102, a power mechanism is provided in the power box 102, two sets of oppositely arranged mixing mechanisms are installed inside the mixing box 101, the mixing mechanisms are used to mix the raw materials in the middle position of the mixing box 101, and two sets of symmetrically arranged moving scraping mechanisms are provided inside the mixing box 101. The movable scraping mechanism is equipped with a guide mechanism that moves left and right. The movable scraping mechanism includes a reciprocating screw rod 401, which is rotatably connected to the inside of the mixing box 101. The reciprocating screw rod 401 is threadedly connected to a movable seat 402. The guiding mechanism includes two lifting rods 501, which are slidably connected to the top of the movable seat 402. The bottom end of the lifting rod 501 is connected to a sliding shaft 502 by a bolt. One end of the sliding shaft 502 is slidably connected to an arc-shaped guide plate 503. The guide plate 503 is used to guide the raw materials in the air to the middle position of the mixing box 101.

[0034] In this embodiment, the guiding mechanism includes two racks 505, which are connected to the front and rear sides of the mixing box 101 by bolts. The racks 505 pass through the movable seat 402 and the two are slidably connected. The movable seat 402 is rotatably connected with a gear shaft 507. The gear shaft 507 is a shaft fixedly connected to the gears at both ends. The other end of the gear shaft 507 extends into the guide plate 503 and is rotatably connected. A reinforcing plate 504 is welded on the top of the guide plate 503, and an arc-shaped internal tooth 508 is welded inside the guide plate 503. The internal tooth 508 is meshed with one end of the gear shaft 507 extending into the guide plate 503. When the movable seat 402 moves left and right, due to the setting of the gear shaft 507, the gear shaft 507 can drive the guide plate 503 to change its angle through the internal tooth 508, thereby moving the gypsum mortar raw materials in the air.

[0035] In this embodiment, several groups of meshing teeth 506 are provided on the rack 505, and the tooth direction of the meshing teeth 506 is opposite to that of the inner teeth 508. The meshing position of the meshing teeth 506 with the gear shaft 507 is at the lower side, and the meshing position of the inner teeth 508 with the gear shaft 507 is at the upper side. There is a certain distance between the several groups of meshing teeth 506, and the meshing teeth 506 are meshed with one end of the gear shaft 507 in the movable seat 402. Due to the arrangement of multiple groups of meshing teeth 506 arranged at intervals, when the movable seat 402 moves left and right, the concave surface of the guide plate 503 always points to the middle position inside the mixing box 101. When the gypsum mortar raw materials thrown into the air by the mixing mechanism encounter the guide plate 503, the guide plate 503 can always guide the gypsum mortar raw materials on both sides to the middle position, so that the gypsum mortar has a higher degree of aggregation when it is in a zero-gravity state, thereby accelerating the mixing efficiency.

[0036] In this embodiment, a scraper 403 for continuously scraping the inner wall of the mixing box 101 is welded to one side of the movable seat 402. The scraper 403 fits the inner wall of the mixing box 101 and repeatedly scrapes the gypsum mortar raw materials on the inner wall.

[0037] In this embodiment, the stirring mechanism includes a stirring shaft 301, which is rotatably connected to the bottom of the stirring box 101. A number of connecting seats 302 are welded to the stirring shaft 301. The middle connecting seat 302 is connected to a stirring plate 304 by bolts, and the remaining connecting seats 302 are connected to connecting shafts 303 by bolts. The connecting shaft 303 on each connecting seat 302 is set at a position away from the middle connecting seat 302, and the connecting shaft 303 is rotatably connected to the stirring plate 304. The connecting shaft 303 and the stirring plate 304 are connected. A torsion spring 305 is arranged between them. The torsion spring 305 is used to reset the stirring plate 304. When the gravity of the raw material is not large, the inclination angle of the stirring plate 304 is small to prevent excessive horizontal displacement after being thrown out, thereby affecting the mixing effect. When the stirring shaft 301 rotates, the stirring plate 304 is subjected to the pressure of the gypsum mortar raw material, thereby rotating around the connecting shaft 303 on the connecting seat 302. At this time, the stirring plates 304 on the left and right sides will face the middle position, thereby throwing the gypsum mortar raw material at the bottom to the middle, further improving the mixing effect.

[0038] In this embodiment, a connecting rod 306 is connected to one side of the connecting seat 302 by bolts, and a limiting rod 307 for limiting the rotation angle of the stirring plate 304 is connected to the connecting rod 306 by bolts. The length of the connecting rod 306 away from the middle connecting seat 302 is greater than the length of the connecting rod 306 close to the connecting seat 302 away from the middle. Through the setting of the connecting rod 306, the limiting rod 307 can limit the stirring plate 304 to rotate at different angles. The farther away from the middle position the stirring plate 304 is, the greater the rotation angle is, thereby causing the gypsum mortar raw material to have a greater displacement in the horizontal direction.

[0039] In this embodiment, the power mechanism includes an electric motor 201, which is connected to the power box 102 by bolts. The output shaft of the electric motor 201 is connected to two first drive shafts 202 for driving the reciprocating screw rods 401 by belts. The output shaft of the electric motor 201 is connected to a driving gear 203 by bolts. A passive gear 204 is engaged on one side of the driving gear 203. The driving gear 203 and the passive gear 204 are rotatably connected to one side of the mixing box 101. The shafts of the driving gear 203 and the passive gear 204 are respectively connected to a second drive shaft 205 by belts. The second drive shaft 205 is used to drive the stirring shaft 301 to rotate. Through the setting of the driving gear 203 and the passive gear 204, the rotation directions of the two stirring shafts 301 are opposite, and the two reciprocating screw rods 401 rotate synchronously to ensure a stable working state.

[0040] Working principle: When the device is in use, the gypsum mortar raw materials are poured from the hopper 103 into the mixing box 101, and the motor 201 is turned on. The motor 201 drives the two first drive shafts 202 to rotate through the belt, and the first drive shaft 202 drives the reciprocating screw 401 to rotate. The output shaft of the motor 201 drives the driving gear 203 to rotate, and the driving gear 203 makes the two second drive shafts 205 rotate in the opposite direction through the passive gear 204 meshing with it, driving the stirring shaft 301 to rotate, so that the gypsum mortar raw materials in the mixing box 101 are stirred and mixed without gravity. During the stirring and mixing process, the stirring plate 304 is subjected to the pressure of the gypsum mortar raw materials, thereby rotating around the connecting shaft 303 on the connecting seat 302. At this time, the stirring plates 304 on the left and right sides will face the middle position, and due to the setting of the connecting rod 306, the limit rod 307 can limit the stirring plates 304 to rotate at different angles. The farther away from the middle position the stirring plates 304 are from, the greater the rotation angle is, thereby The gypsum mortar raw materials at the bottom are thrown to the middle, which improves the mixing effect. At the same time, the reciprocating screw 401 on the upper side rotates to drive the movable seat 402 to move back and forth. The scraper 403 can scrape the side wall of the mixing box 101 to prevent the gypsum mortar raw materials from sticking to the side wall and causing waste. The lifting rod 501 on the movable seat 402 drives the guide plate 503 to move left and right through the sliding shaft 502. During the movement of the guide plate 503 left and right, due to the cooperation of the meshing teeth 506, the internal teeth 508 and the gear shaft 507, the gear shaft 507 can drive the guide plate 503 to change the angle through the internal teeth 508, so that the concave surface of the guide plate 503 is always facing the middle position of the mixing box 101. In this way, the guide plate 503 can always guide the gypsum mortar raw materials on both sides to the middle position, so that the gypsum mortar is more concentrated in a zero-gravity state, thereby accelerating the mixing efficiency. After the device has been running for a period of time, the motor 201 is stopped and the discharge port 104 is opened for discharge and collection, and the mixing operation is completed.

[0041] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A weightless mixing device for gypsum mortar production, comprising a mixing box (101), one side of which is fixedly connected to a power box (102), characterized in that: The power box (102) is provided with a power mechanism, and two groups of stirring mechanisms arranged opposite to each other are installed inside the stirring box (101). The stirring mechanisms are used to mix the raw materials in the middle position of the stirring box (101). Two groups of symmetrically arranged mobile scraping mechanisms are provided inside the stirring box (101). A guide mechanism that moves left and right is installed on the mobile scraping mechanism. The mobile scraping mechanism includes a reciprocating screw (401), and a movable seat (402) is threadedly connected to the reciprocating screw (401). The guide mechanism includes two lifting rods (501), and the lifting rods (501) are slidably connected to the top of the movable seat (402). The bottom end of the lifting rod (501) is fixedly connected to a sliding shaft (502), and one end of the sliding shaft (502) is slidably connected to an arc-shaped guide plate (503). The guide plate (503) is used to guide the raw materials in the air to the middle position of the stirring box (101).

2. A zero-gravity mixing device for gypsum mortar production according to claim 1, characterized in that: The guide mechanism comprises two racks (505), the racks (505) being fixedly connected to the front and rear sides of the mixing box (101), the racks (505) passing through the movable seat (402) and the two being slidably connected, the movable seat (402) being internally rotatably connected with a gear shaft (507), the other end of the gear shaft (507) extending into the guide plate (503) and being rotatably connected, the guide plate (503) being internally fixedly connected with arc-shaped internal teeth (508), the internal teeth (508) being meshed with one end of the gear shaft (507) extending into the guide plate (503).

3. A zero-gravity mixing device for gypsum mortar production according to claim 2, characterized in that: The rack (505) is provided with a plurality of groups of meshing teeth (506), and the meshing teeth (506) are meshed with one end of the gear shaft (507) inside the movable seat (402). When the movable seat (402) moves left and right, the concave surface of the guide plate (503) always points to the middle position inside the mixing box (101).

4. A zero-gravity mixing device for gypsum mortar production according to claim 1, characterized in that: A scraper (403) for continuously scraping the inner wall of the mixing box (101) is fixedly connected to one side of the movable seat (402).

5. The zero-gravity mixing device for gypsum mortar production according to claim 1, characterized in that: The stirring mechanism comprises a stirring shaft (301), the stirring shaft (301) is rotatably connected to the bottom of the stirring box (101), a plurality of connecting seats (302) are fixedly connected to the stirring shaft (301), a stirring plate (304) is fixedly connected to the middle connecting seat (302), and the remaining connecting seats (302) are fixedly connected to connecting shafts (303), the connecting shaft (303) on each connecting seat (302) is arranged at a position away from the middle connecting seat (302), the stirring plate (304) is rotatably connected to the connecting shaft (303), and a torsion spring (305) is arranged between the connecting shaft (303) and the stirring plate (304).

6. A zero-gravity mixing device for gypsum mortar production according to claim 5, characterized in that: A connecting rod (306) is fixedly connected to one side of the connecting seat (302), and a limiting rod (307) is fixedly connected to the connecting rod (306) for limiting the rotation angle of the stirring plate (304). The length of the connecting rod (306) away from the middle of the connecting seat (302) is greater than the length of the connecting rod (306) close to the connecting seat (302) away from the middle.

7. A zero-gravity mixing device for gypsum mortar production according to claim 5, characterized in that: The power mechanism comprises an electric motor (201), the electric motor (201) being fixedly connected in the power box (102), the output shaft of the electric motor (201) being connected to two first drive shafts (202) for driving the reciprocating screw rod (401) via a belt, the output shaft of the electric motor (201) being fixedly connected to a driving gear (203), one side of the driving gear (203) being meshed with a driven gear (204), the driving gear (203) and the driven gear (204) being rotationally connected to one side of the stirring box (101), the rotating parts of the driving gear (203) and the driven gear (204) being respectively connected to a second drive shaft (205) via a belt, the second drive shaft (205) being used to drive the stirring shaft (301) to rotate.

Images