Die for prefabricated stair production

Abstract

The utility model provides a mould for producing prefabricated stairs, which comprises a mould base, a support mounting frame is welded and fixed at the lower end of the mould base, a plurality of mounting holes are arranged in the support mounting frame, a mould core is arranged on the rear side in the mould base, and a cavity is arranged between the mould core and the mould base. Two top plates corresponding in left-right position are slidably arranged in sliding grooves formed in the mold base, a jacking driving mechanism for driving the top plates to jack is arranged at the lower end of the mold base, and a slicking mechanism is arranged at the upper end of the interior of the mold base. According to the mold for producing the prefabricated staircase, the demolding speed can be remarkably increased through automatic ejection demolding, the manpower requirement is reduced, the production efficiency of the prefabricated staircase is improved, meanwhile, the mechanical demolding action is more stable and accurate, physical damage to the prefabricated staircase is reduced, and the quality of the prefabricated staircase is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of precast staircase production, and particularly relates to a mold for precast staircase production. Background Art

[0002] A precast staircase refers to a staircase component precast and fabricated in a factory environment. It can be integral or segmented. After completion, it is transported to a construction site for direct installation, which helps to speed up the project progress and ensure quality control. The mold for precast staircase production is a key device used to form precast staircases during the manufacturing process. It is designed in the negative structure of a staircase. Existing molds for precast staircase production add concrete and steel bars into the mold and wait for the concrete to solidify to achieve the forming production of precast staircases. However, they lack an ejection and demolding mechanism for the formed precast staircases, resulting in disadvantages such as difficult demolding and low production efficiency.

[0003] For example, the utility model with the publication number CN215589478U discloses a mold for precast staircase production. In this patent solution, concrete and pre-placed steel bars are placed in the mold, and the required staircase form is formed after the concrete cures. However, it lacks an ejection and demolding mechanism for the formed precast staircases, making the demolding process rely on manual operation, which is time-consuming and laborious, and easily damages the surface or structure of the finished product. At the same time, manual demolding slows down the production rhythm and affects the circulation efficiency of the entire precast production line. Summary of the Utility Model

[0004] In view of this, in view of the deficiencies of the prior art, the utility model provides a mold for precast staircase production. The automatic ejection and demolding can significantly speed up the demolding speed, reduce the manpower requirement, improve the production efficiency of precast staircases. At the same time, the mechanized demolding action is more stable and precise, reducing the physical damage to precast staircases and ensuring the quality of precast staircases.

[0005] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: A mold for precast staircase production, including a mold base, a support mounting frame is welded and fixed at the lower end of the mold base, a plurality of mounting holes are provided inside the support mounting frame, a mold core is arranged at the rear side inside the mold base, a cavity is arranged between the mold core and the mold base, two top plates corresponding to the left and right positions are slidably arranged in the sliding grooves opened inside the mold base, and a jacking drive mechanism for driving the top plates to jack up is arranged at the lower end of the mold base. A scraping mechanism is arranged at the upper end inside the mold base. The jacking drive mechanism includes a connecting plate arranged at the lower end of the mold base. Two rotating frames are slidably arranged inside the connecting plate. Connecting frames are rotatably arranged inside both of the two rotating frames. The middle parts of the two connecting frames are rotatably connected by a pin shaft. A chute plate is arranged between the lower ends of the two top plates. Two rotating seats are slidably arranged at the lower end of the chute plate. The two connecting frames are respectively rotatably connected to the inside of the adjacent rotating seats. An electric drive unit one for driving the two rotating frames to move is arranged inside the connecting plate. The electric drive unit one includes a hydraulic push rod arranged inside the connecting plate. The telescopic ends of the two hydraulic push rods are respectively connected to the outer sides of the adjacent rotating frames.

[0006] As a further improvement of the present utility model, the scraping mechanism includes a scraping plate slidably arranged at the upper end inside the mold base. A lead screw is rotatably arranged at the upper end inside the mold base. The scraping plate is threadedly connected to the lead screw. An electric drive unit two for driving the lead screw to rotate is arranged at the left end of the mold base. A collecting assembly is arranged on the right side of the mold base. The electric drive unit two includes a motor arranged on the left side of the mold base. The output shaft of the motor is connected to the left end of the lead screw through a coupling. The collecting assembly includes a placement plate arranged on the right side of the mold base. A collecting box is placed on the upper end of the placement plate. A handle is arranged on the right side of the collecting box.

[0007] As a further improvement of the present utility model, a control panel is arranged on the front side of the mold base. The motor and the hydraulic push rod are both electrically connected to the control panel.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0009] Firstly, the mold is fixed on the ground through the mounting holes on the support mounting frame, which can make the forming production of the precast staircase more stable.

[0010] Secondly, the release agent is evenly sprayed into the cavity between the mold core and the mold base. Then, an appropriate amount of concrete and steel bars are added into the cavity. Subsequently, the motor is controlled to run through the control panel. The output shaft drives the lead screw to rotate, so that the scraper moves from the left side to the right side of the mold base to scrape off the concrete overflowing outside the cavity, ensuring the forming quality of the subsequent precast staircase.

[0011] Thirdly, after waiting for the concrete to solidify and form a precast staircase, the hydraulic push rods on both sides are controlled to operate through the control panel. The telescopic ends drive the rotating frames on both sides to approach each other, thereby causing the connecting frames inside to rotate and expand around the pin shafts, driving the rotating seats to slide inside the chute plates, and then driving the top plates on both sides to move upward to eject the precast staircase, completing the demolding. Then, the staff can quickly and easily take out the precast staircase from the cavity. The automatic ejection demolding can significantly accelerate the demolding speed, reduce the manpower requirement, improve the production efficiency of the precast staircase. At the same time, the mechanical demolding action is more stable and precise, reducing the physical damage to the precast staircase and ensuring the quality of the precast staircase.

[0012] Fourthly, the excess concrete is scraped off by the scraper and falls into the inside of the collection box. The staff can handle the concrete inside the collection box through the handle, without manually collecting the scraped concrete. Description of the Drawings

[0013] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0014] Figure 1 is the structural schematic diagram of the present utility model;

[0015] Figure 2 is the top view structural schematic diagram of the present utility model;

[0016] Figure 3 is the front view sectional structural schematic diagram of the present utility model;

[0017] Figure 4 is the enlarged structural schematic diagram at A of the present utility model.

[0018] In the figure: 101, mold base; 102, support mounting frame; 103, mounting hole; 104, control panel; 105, mold core; 201, connecting plate; 202, top plate; 203, rotating frame; 204, connecting frame; 205, chute plate; 206, hydraulic push rod; 207, rotating seat; 301, scraping plate; 302, placement plate; 303, collection box; 304, lead screw; 305, motor. Specific Embodiments

[0019] To better understand the present utility model, the content of the present utility model will be further clearly elaborated below in conjunction with the embodiments. However, the protection scope of the present utility model is not limited to the following embodiments only. In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details.

[0020] Such as Figure 1 、 2As shown in Figures 3 and 4, a mold for producing prefabricated stairs includes a mold base 101, a support mounting frame 102 is welded and fixed at the lower end of the mold base 101, a plurality of mounting holes 103 are provided inside the support mounting frame 102, a mold core 105 is provided at the rear side of the mold base 101, a cavity is provided between the mold core 105 and the mold base 101, two top plates 202 corresponding to left and right positions are slidably provided in the sliding groove provided inside the mold base 101, a lifting driving mechanism for driving the top plate 202 to lift is provided at the lower end of the mold base 101, and the mold base 101 is provided with a plurality of mounting holes 103. 1 is provided with a scraping mechanism at the inner upper end, the scraping mechanism includes a scraping plate 301 slidably provided at the inner upper end of the mold base 101, a screw rod 304 is rotatably provided at the inner upper end of the mold base 101, the scraping plate 301 is threadedly connected with the screw rod 304, an electric drive unit 2 for driving the screw rod 304 to rotate is provided at the left end of the mold base 101, a collecting component is provided on the right side of the mold base 101, the electric drive unit 2 includes a motor 305 provided on the left side of the mold base 101, and the output shaft of the motor 305 is connected to the left end of the screw rod 304 through a coupling.

[0021] like Figure 1 , 2 As shown in Figures 3 and 4, the lifting drive mechanism includes a connecting plate 201 arranged at the lower end of the mold base 101, two rotating frames 203 are slidably arranged inside the connecting plate 201, and connecting frames 204 are rotatably arranged inside the two rotating frames 203. The middle parts of the two connecting frames 204 are rotatably connected by a pin shaft, a slide plate 205 is arranged between the lower ends of the two top plates 202, and two rotating seats 207 are slidably arranged at the lower end of the slide plate 205. The two connecting frames 204 are respectively rotatably connected to the inside of adjacent rotating seats 207, and an electric drive unit 1 for driving the two rotating frames 203 to move is arranged inside the connecting plate 201. The electric drive unit 1 includes a hydraulic push rod 206 arranged inside the connecting plate 201, and the telescopic ends of the two hydraulic push rods 206 are respectively connected to the outer side surfaces of the adjacent rotating frames 203.

[0022] like Figure 1 As shown, a control panel 104 is disposed on the front side of the mold base 101 , and the motor 305 and the hydraulic push rod 206 are both electrically connected to the control panel 104 .

[0023] First, fix the mold on the ground through the mounting hole 103 on the support mounting frame 102, and then evenly spray the release agent in the cavity between the mold core 105 and the mold base 101, and then add a proper amount of concrete and steel bars into the cavity, and then control the control panel 104 to turn on the motor 305. The output shaft drives the screw 304 to rotate so that the scraper moves from the left side of the mold base 101 to the right to scrape off the concrete overflowing from the outside of the cavity, thereby ensuring the molding quality of the subsequent prefabricated stairs.

[0024] After the concrete solidifies and forms a precast staircase, the hydraulic push rods 206 on both sides are controlled to operate through the control panel 104. The telescopic ends drive the rotating frames 203 on both sides to approach each other, so that the connecting frame 204 inside rotates and expands around the pin shaft, driving the rotating seat 207 to slide inside the chute plate 205, and then driving the top plates 202 on both sides to move upward to eject the precast staircase, completing the demolding. Then, the staff can quickly and easily take out the precast staircase from the cavity.

[0025] According to another embodiment of the present invention, as Figure 1 、 2 、Figure 3 shows, the collection component includes a placement plate 302 arranged on the right side of the mold base 101. A collection box 303 is placed on the upper end of the placement plate 302. A handle is arranged on the right side of the collection box 303. The excess concrete is scraped off by a scraper and falls into the interior of the collection box 303. The staff can handle the concrete inside the collection box 303 through the handle.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A mold for precast staircase production, comprising a mold base (101), wherein a support mounting frame (102) is fixedly welded to the lower end of the mold base (101), and a plurality of mounting holes (103) are formed inside the support mounting frame (102), characterized in that: Inside the rear side of the die holder (101), a die core (105) is provided. There is a cavity between the die core (105) and the die holder (101). In the sliding grooves opened inside the die holder (101), two top plates (202) corresponding to each other in the left - right position are slidably arranged. At the lower end of the die holder (101), a jacking drive mechanism for jacking the top plates (202) is provided. At the upper end inside the die holder (101), a leveling mechanism is provided.

2. The mold for producing precast stairs according to claim 1, characterized in that: The jacking drive mechanism includes a connecting plate (201) arranged at the lower end of the die holder (101). Inside the connecting plate (201), two rotating frames (203) are slidably arranged. Inside each of the two rotating frames (203), a connecting frame (204) is rotatably arranged. The middle parts of the two connecting frames (204) are rotatably connected by a pin shaft. Between the lower ends of the two top plates (202), a chute plate (205) is provided. At the lower end of the chute plate (205), two rotating seats (207) are slidably arranged. The two connecting frames (204) are respectively rotatably connected to the inside of the adjacent rotating seats (207). Inside the connecting plate (201), an electric drive unit one for driving the two rotating frames (203) to move is provided.

3. A mold for producing precast stairs according to claim 2, characterized in that: The electric drive unit one includes a hydraulic push rod (206) arranged inside the connecting plate (201). The telescopic ends of the two hydraulic push rods (206) are respectively connected to the outer sides of the adjacent rotating frames (203).

4. The mold for producing precast stairs according to claim 3, characterized in that: The leveling mechanism includes a leveling plate (301) slidably arranged at the upper end inside the die holder (101). A lead screw (304) is rotatably arranged at the upper end inside the die holder (101). The leveling plate (301) is threadedly connected to the lead screw (304). At the left end of the die holder (101), an electric drive unit two for driving the lead screw (304) to rotate is provided. At the right side of the die holder (101), a collection assembly is provided.

5. The mold for producing precast stairs according to claim 4, characterized in that: The electric drive unit two includes a motor (305) arranged at the left side of the die holder (101). The output shaft of the motor (305) is connected to the left end of the lead screw (304) through a coupling.

6. The mold for producing precast stairs according to claim 4, characterized in that: The collection assembly includes a placement plate (302) arranged at the right side of the die holder (101). On the upper end of the placement plate (302), a collection box (303) is placed. A handle is provided at the right side of the collection box (303).

7. The mold for producing precast stairs according to claim 5, characterized in that: A control panel (104) is provided on the front side of the die holder (101). The motor (305) and the hydraulic push rod (206) are both electrically connected to the control panel (104).

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