A gypsum slurry spreading device

Abstract

The utility model discloses a gypsum slurry paving device relates to the gypsum board production technical field, including conveyer unit, agitator tank, lower face paper, out of the slurry pipe, buffer box, a plurality of tank body and a plurality of discharge holes, and agitator tank is connected in conveyer unit upside, and lower face paper travels in conveyer unit upside, and out of the slurry pipe upper end communicates with agitator tank, and buffer box is connected in conveyer unit upside through connecting rod, and buffer box upside opening is set, and out of the slurry pipe lower extreme communicates with buffer box one side, and a plurality of tank body equidistantly connect in buffer box other side, and tank body will gypsum slurry be dispersed and pre-pave on lower face paper, and buffer box is equidistantly set up with a plurality of discharge holes, and discharge hole and tank body one to one correspond. The utility model discloses can carry out pre-paving operation, and cooperate with the subsequent paving scraper, can effectively reduce the production defect, effectively solve the problem that gypsum slurry is accumulated on lower face paper and leads to the unsatiated of the edge of the gypsum board produced, and the poor problem of paper core bonding.

Description

Technical Field

[0001] This utility model relates to the field of gypsum board production technology, and in particular to a gypsum slurry spreading device. Background Technology

[0002] The production process of gypsum board is as follows: raw material processing, calcination, batching and mixing, slurry spreading and molding, solidification and cutting, drying and curing, cutting and inspection, and stacking and shipping. In the molding and curing stage, the mixed gypsum slurry needs to be evenly and continuously spread on the moving undercoating paper through a spreading system. The width and thickness of the slurry are controlled by devices such as scrapers.

[0003] Currently, when spreading gypsum slurry, the material is spread by placing the discharge pipe on the upper side of the lower protective paper, and then spreading it through a subsequent paving mechanism.

[0004] However, the current gypsum slurry discharge pipe is generally set in the middle of the lower facing paper for spreading the slurry. This causes most of the slurry to accumulate in the middle of the lower facing paper. Discharging from the middle of the single pipe will result in a phenomenon where the middle is thick and the two sides are thin. Using only the subsequent spreading device can easily produce defects, resulting in incomplete edges and poor adhesion of the paper core. Utility Model Content

[0005] This utility model addresses the aforementioned problems by providing a gypsum slurry spreading device capable of pre-spreading operations. In conjunction with the subsequent spreading scraper, it can effectively reduce production defects and solve the problems of gypsum slurry accumulation on the lower protective paper, resulting in incomplete edges of the produced gypsum board and poor paper core adhesion.

[0006] The technical solution adopted to solve the above-mentioned technical problems is: a gypsum slurry spreading device, including a conveyor unit, a mixing tank, a lower protective paper, a slurry outlet pipe, a buffer box, multiple troughs and multiple discharge holes. The mixing tank is connected to the upper side of the conveyor unit, the lower protective paper travels on the upper side of the conveyor unit, the upper end of the slurry outlet pipe is connected to the mixing tank, the buffer box is connected to the upper side of the conveyor unit through a connecting rod, the upper side of the buffer box is open, the lower end of the slurry outlet pipe is connected to one side of the buffer box, multiple troughs are equidistantly connected to the other side of the buffer box, the troughs disperse and pre-spread gypsum slurry on the lower protective paper, and multiple discharge holes are equidistantly opened on the buffer box, each discharge hole corresponding to one of the troughs.

[0007] Furthermore, it also includes a pre-scraper, a gear set, and a motor. The pre-scraper is rotatably connected to the upper side of the conveyor unit and is located at the discharge end of the trough. The gear set is rotatably connected to the side wall of the conveyor unit and is linked with the rotating shaft of the pre-scraper. The motor is connected to the side wall of the conveyor unit, and the output shaft of the motor is linked with the gear set.

[0008] Furthermore, it also includes a float, a tie rod, and a rope-type displacement sensor. The float is slidably connected to the buffer box in the vertical direction. The gypsum slurry in the buffer box pushes the float to move upward. The tie rod is fixedly connected to the upper side of the float. The rope-type displacement sensor is connected to the side wall of the conveyor unit. The lower end of the tie rod is fixedly connected to the rope end of the rope-type displacement sensor. The rope-type displacement sensor cooperates with the motor.

[0009] Furthermore, it also includes a buffer plate, which is connected inside the buffer box and faces the outlet of the slurry pipe.

[0010] Furthermore, it also includes guide rods and connecting plates. Multiple guide rods are fixedly connected to the upper side of the float plate, and the connecting plate is connected to the upper side of the buffer box. The guide rods slide through the connecting plate.

[0011] The beneficial effects of this utility model are as follows: By setting a buffer box, the gypsum slurry discharged from the slurry pipe first passes through the buffer box, and then is discharged through the slurry outlet hole of the buffer box. The gypsum slurry enters multiple tanks and is discharged from multiple tanks separately, spreading as evenly as possible on the lower protective paper. Compared with the traditional single-pipe middle discharge method, the pre-spreading operation is carried out before entering the spreading mechanism. In coordination with the subsequent spreading scraper, it can effectively reduce production defects and effectively solve the problem of gypsum slurry accumulating on the lower protective paper, resulting in incomplete edges of the produced gypsum board and poor paper core adhesion. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram showing the location of the buffer box of this utility model.

[0014] Figure 3 This is a schematic diagram of the tank structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the floating plate structure of this utility model.

[0016] Reference numerals in the attached drawings: 1. Conveyor unit; 2. Mixing tank; 3. Lower protective paper; 4. Slurry outlet pipe; 5. Buffer box; 6. Tank; 7. Discharge hole; 8. Pre-scraper; 9. Gear set; 10. Motor; 11. Float; 12. Cable-stayed displacement sensor; 13. Buffer plate; 14. Guide rod; 15. Connecting plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] like Figures 1-4 As shown, this embodiment provides a gypsum slurry spreading device, including a conveyor unit 1, a mixing tank 2, a lower protective paper 3, a slurry outlet pipe 4, a buffer box 5, multiple troughs 6, and multiple discharge holes 7. The mixing tank 2 is connected to the upper side of the conveyor unit 1, the lower protective paper 3 travels on the upper side of the conveyor unit 1, the upper end of the slurry outlet pipe 4 is connected to the mixing tank 2, the buffer box 5 is connected to the upper side of the conveyor unit 1 through a connecting rod, the upper side of the buffer box 5 is open, the lower end of the slurry outlet pipe 4 is connected to one side of the buffer box 5, multiple troughs 6 are equidistantly connected to the other side of the buffer box 5, the troughs 6 disperse and pre-spread the gypsum slurry on the lower protective paper 3, and multiple discharge holes 7 are equidistantly opened on the buffer box 5, with each discharge hole 7 corresponding to one of the troughs 6.

[0019] In the above embodiments, the gypsum slurry discharged from the discharge pipe 4 first passes through the buffer box 5 via the buffer box 5, and then is discharged through the discharge hole of the buffer box 5. The gypsum slurry enters multiple tanks 6 and is discharged from multiple tanks 6 respectively, spreading as evenly as possible on the lower protective paper 3. Compared with the traditional single-pipe discharge method, the pre-spreading operation is performed before entering the spreading mechanism, which works in conjunction with the subsequent spreading scraper. This can effectively reduce production defects and effectively solve the problem of gypsum slurry accumulating on the lower protective paper 3, resulting in incomplete edges of the produced gypsum board and poor paper core adhesion.

[0020] Specifically, it also includes a pre-scraper 8, a gear set 9, and a motor 10. The pre-scraper 8 is rotatably connected to the upper side of the conveyor unit 1 and is located at the discharge end of the trough 6. The gear set 9 is rotatably connected to the side wall of the conveyor unit 1 and is linked with the rotating shaft of the pre-scraper 8. The motor 10 is connected to the side wall of the conveyor unit 1 and the output shaft of the motor 10 is linked with the gear set 9. It also includes a float plate 11, a pull rod 16, and a rope-type displacement sensor 12. The float plate 11 is slidably connected to the buffer box 5 in the vertical direction. The gypsum slurry in the buffer box 5 pushes the float plate 11 upward. The pull rod 16 is fixedly connected to the upper side of the float plate 11. The rope-type displacement sensor 12 is connected to the side wall of the conveyor unit 1. The lower end of the pull rod 16 is fixedly connected to the rope end of the rope-type displacement sensor 12. The rope-type displacement sensor 12 cooperates with the motor 10.

[0021] In the above embodiments, the gypsum slurry in the buffer box 5 can act on the float 11, pushing the float 11 to move upward. The upward movement of the float 11 drives the pull rod 16 to move upward. The pull rod 16 pulls the pull rope end of the pull rope displacement sensor 12, thereby transmitting information to the system. The system controls the motor 10, which drives the gear set 9 to adjust the tilt angle of the pre-scraper 8, thereby adjusting the distance between the pre-scraper 8 and the lower protective paper 3. The upward movement of the float 11 means that there is a large accumulation of gypsum slurry in the buffer box 5, and the discharge speed of the slurry outlet changes. Through the linkage of the above components, the pre-scraper 8 is automatically adjusted, thereby ensuring the production quality of the gypsum board.

[0022] Specifically, it also includes a buffer plate 13, which is connected inside the buffer box 5 and faces the outlet of the slurry pipe 4.

[0023] In the above embodiments, the buffer plate 13 buffers the slurry discharged from the slurry outlet pipe 4.

[0024] Specifically, it also includes guide rods 14 and connecting plates 15. Multiple guide rods 14 are fixedly connected to the upper side of the float plate 11, and the connecting plate 15 is connected to the upper side of the buffer box 5. The guide rods 14 slide through the connecting plate 15.

[0025] In the above embodiments, the stable sliding of the float plate 11 is achieved through the cooperation of the guide rod 14 and the connecting plate 15.

[0026] The working principle of this utility model is as follows: When gypsum board is produced, the lower facing paper 3 moves on the conveyor unit 1, and the slurry outlet pipe 4 continuously discharges the slurry. The slurry first enters the buffer box 5. After the slurry accumulates to a certain extent, it is discharged from the discharge hole 7. The gypsum slurry enters multiple tanks 6 and is evenly pre-spread on the lower facing paper 3 along the tanks 6. The tilt angle of the pre-scraper 8 is adjusted by the upward movement of the float 11, thereby adjusting the distance between the pre-scraper 8 and the lower facing paper 3 to adjust the pre-spreading effect. When slurry with different proportions and consistency is discharged from the slurry outlet pipe 4, the discharge speed of the slurry outlet pipe 4 is also different. After the gypsum slurry accumulates in the buffer box 5, it will push the float 11 to move upward. The float 11 drives the pull rod 16 to move upward. The pull rod 16 pulls the pull rope of the pull rope displacement sensor 12 to a certain length. The pull rope displacement sensor 12 transmits the signal to the system. The system receives the signal, processes it, and controls the motor 10. The detailed process of linkage adjustment is as follows: the gypsum slurry in the buffer box 5 accumulates more (which will cause too much slurry on the lower protective paper 3), then the float 11 moves upward, the upward movement of the float 11 is transmitted to the system, the system processes the signal of the upward movement, the system controls the motor 10 to run, the motor 10 causes the gear set 9 to run, the gear set 9 drives the pre-scraper 8 to rotate, so that the distance between the pre-scraper 8 and the lower protective paper 3 becomes smaller, so as to control the amount of gypsum slurry on the lower protective paper 3; To simplify: the displacement signal of the pull-rope type displacement sensor 12 is linked with the rotation of the motor 10; The above control procedures are widely available in existing technologies; simply select one based on the process flow.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A gypsum slurry spreading device, comprising a conveyor unit (1), a mixing tank (2), and a lower protective paper (3), wherein the mixing tank (2) is connected to the upper side of the conveyor unit (1), and the lower protective paper (3) travels on the upper side of the conveyor unit (1), characterized in that, Also includes: The upper end of the slurry outlet pipe (4) is connected to the mixing tank (2); The buffer box (5) is connected to the upper side of the conveyor unit (1) by a connecting rod, and the upper side of the buffer box (5) is open; The lower end of the slurry outlet pipe (4) is connected to one side of the buffer box (5); Multiple troughs (6) are equidistantly connected to the other side of the buffer box (5), and the troughs (6) disperse and pre-spread the gypsum slurry on the lower protective paper (3); Multiple discharge holes (7) are provided on the buffer box (5) at equal intervals, and the discharge holes (7) correspond one-to-one with the tank (6).

2. The gypsum slurry spreading device according to claim 1, characterized in that, Also includes: The pre-scraper (8) is rotatably connected to the upper side of the conveyor unit (1); The pre-scraper (8) is located at the discharge end of the trough (6); The gear set (9) is rotatably connected to the side wall of the conveyor set (1), and the gear set (9) is linked to the shaft of the pre-scraper (8); The motor (10) is connected to the side wall of the conveyor unit (1), and the output shaft of the motor (10) is linked with the gear set (9).

3. The gypsum slurry spreading device according to claim 2, characterized in that, Also includes: The float (11) is slidably connected to the buffer box (5) in the vertical direction, and the gypsum slurry in the buffer box (5) pushes the float (11) upward; The tie rod (16) is fixedly connected to the upper side of the float (11); A pull-rope displacement sensor (12) is connected to the side wall of the conveyor unit (1), and the lower end of the pull rod (16) is fixedly connected to the pull rope end of the pull-rope displacement sensor (12). The pull-rope displacement sensor (12) is used in conjunction with the motor (10).

4. The gypsum slurry spreading device according to claim 1, characterized in that, Also includes: A buffer plate (13) is connected inside the buffer box (5), and the buffer plate (13) is directly opposite the outlet of the slurry pipe (4).

5. A gypsum slurry spreading device according to claim 3, characterized in that, Also includes: Guide rod (14), multiple guide rods (14) are fixedly connected to the upper side of the float (11). A connecting plate (15) is connected to the upper side of the buffer box (5), and the guide rod (14) slides through the connecting plate (15).

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