A PC precast floor slab manufacturing and forming mold

Abstract

The present invention discloses a PC precast floor slab manufacturing and forming mold, which relates to the technical field of PC precast floor slab manufacturing, and includes: a long board, a forming mold is fixedly connected to the central axis of the top of the long board, a sliding board is arranged on the top of the forming mold, and a long strip board is arranged directly below the long board. Through the extrusion board, the extrusion board located below the sliding board will have a certain extrusion effect on the material under the push of the spring elasticity, so that the material will be more cohesive. Through the inclined scraper, since the forming material injected by the staff into the forming mold is an indefinite quantity and will only be more and not less, there may be a situation where the forming material is excessive, and the inclined scraper can avoid this shape from appearing. Through the semi-circular strip, it can further limit the sliding board slidingly connected inside the concave strip and improve its own stability. Through the limiting plate, it can assist the support board to fix the position of the motor and increase its stability in the working state.

Description

Technical Field

[0001] The present invention relates to the field of PC precast floor manufacturing, and specifically relates to a PC precast floor manufacturing and forming mold. Background Art

[0002] At present, when using the forming mold for precast floor manufacturing, there is often a problem that it is not easy to take out the precast floor from the forming mold after it is formed. Since the hardness of the just-formed precast floor is not enough and it is still in a relatively fragile stage, and because the contact area between the cylindrical rod inside the precast floor in the forming mold and it is relatively large, when performing the demolding work, the precast floor may split due to the large pulling force. For this reason, we propose a PC precast floor manufacturing and forming mold. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a PC precast floor manufacturing and forming mold, including:

[0004] A long board, a forming mold is fixedly connected to the middle axis of the top of the long board, a sliding board is arranged on the top of the forming mold, and a long strip board is arranged directly below the long board;

[0005] On one side where the two long strip boards are close to each other, an arc-shaped strip is fixedly connected. Above the arc-shaped strip, there is a support board, and the bottom of the support board is fixedly connected to the top of the long strip board. The top of the support board is fixedly connected to the bottom of the long board. The left and right ends of the long strip board are fixedly connected with obtuse angle boards. The top of the obtuse angle board is fixedly connected with a support board, and the middle axis of the top of the support board is arc-shaped. A motor is fixedly connected to the middle axis of the top of the support board. The motor is fixedly connected to the long board through a limit board, and the output end of the motor is fixedly connected with a first runner. The left and right sides of the outer surface of the motor are fixedly connected with limit boards

[0006] Furthermore, the forming die includes a right-angle plate, a rectangular plate, a concave plate, a cylindrical concave rod, a cylindrical convex rod, a rhombic block, a square rod, and a fixing block. Openings are provided on both left and right sides of the forming die, and a square groove is provided at the bottom of the opening. The right-angle plate is arranged inside the opening, and the bottom of the right-angle plate is in contact with the bottom inner wall of the square groove. The rectangular plate is fixedly connected to the top of the right-angle plate, and the bottom of the rectangular plate is in contact with the top of the concave plate. The concave plate is arranged on both left and right sides of the forming die, and a rhombic groove is provided at one end of the concave plate away from the right-angle plate. One side of the two concave plates close to each other is in contact with the right-angle plate, and the top of the concave plate is in contact with the bottom inner wall of the square groove. Both the cylindrical concave rod and the cylindrical convex rod are arranged inside the forming die. One end of the cylindrical concave rod and the cylindrical convex rod away from each other is fixedly connected to the concave plate, and the cylindrical concave rod and the cylindrical convex rod are adapted to each other. The rhombic block is fixedly connected inside the rhombic groove, and a square through-hole is provided inside the rhombic block. The square rod is slidably connected inside the square through-hole. One end of the square rod away from the square through-hole is fixedly connected to the fixing block. A triangular bayonet is provided at the bottom of the square rod. The shape and size of the triangular block are adapted to the shape and size of the triangular bayonet. The fixing block is fixedly connected to both left and right sides of the top of the long plate.

[0007] Furthermore, the long plate includes a threaded rod, a second runner, a positioning rod, and a right-angle block. Grooves are provided on both left and right sides of the long plate. The threaded rod is horizontally arranged inside the groove. One end of the threaded rod is rotatably connected to the inner wall of the groove, and the other end of the threaded rod is fixedly connected to the second runner. The second runner is connected to the long plate through the positioning rod. A belt is sleeved on the outer surfaces of the first runner and the second runner. The positioning rod is rotatably connected to one side of the second runner away from the threaded rod. A threaded groove is provided inside the right-angle block, and the right-angle block is threadedly connected to the threaded rod through the threaded groove. The right-angle block is fixedly connected to the concave plate, and the front and rear sides of the right-angle block are in contact with the front and rear inner walls of the groove.

[0008] Furthermore, the rhombic block includes a fixing plate, a sliding plate, an inverted triangular plate, a triangular block, and an elastic plate. An opening is provided at the bottom of the square through-hole. The fixing plate is fixedly connected to the lower end inside the opening. The sliding plate is vertically slidably connected to the central axis inside the fixing plate, and the bottom of the sliding plate penetrates through the fixing plate and extends to the outside. The top of the inner surface of the inverted triangular plate is fixedly connected to the bottom of the sliding plate. The triangular block is fixedly connected to the top of the sliding plate. The triangular block is connected to the fixing plate through the elastic plate.

[0009] Further, the sliding plate includes a concave strip, a semi-circular strip, a limiting block, and an inclined scraping plate. Semi-circular grooves are formed at the left and right ends of the bottom of the sliding plate. The inner wall of the semi-circular groove is in contact with the outer surface of the semi-circular strip. The concave strip is arranged on the left and right sides of the sliding plate. The semi-circular strip is fixedly connected to the bottom of the inner surface of the concave strip. The limiting blocks are fixedly connected to the front and rear sides of the bottom of the concave strip. The bottom of the concave strip is in contact with the top of the rectangular plate, and the concave strip is fixedly connected to the forming die through the limiting blocks. The inclined scraping plate is fixedly connected to the front and rear sides of the sliding plate. An extrusion plate is arranged directly below the sliding plate. The shape and size of the extrusion plate are the same as those of the square notch, and the bottom of the extrusion plate is in contact with the top of the forming die. The left and right sides of the extrusion plate and the inclined scraping plate are in contact with the right-angled plate and the rectangular plate. The bottoms of the extrusion plate and the inclined scraping plate are at the same height. A square notch is formed at the bottom of the sliding plate. A circular opening is formed at the top of the inner wall of the square notch. A cylindrical pipe is fixedly connected inside the circular opening. A spring is arranged inside the cylindrical pipe. The upper and lower ends of the spring are respectively fixedly connected to the top of the extrusion plate and the bottom of the closing plate. A closing plate is fixedly installed at the top of the cylindrical pipe.

[0010] The beneficial effects of the present invention.

[0011] Through the extrusion plate of the present invention, the extrusion plate located below the sliding plate will have a certain extrusion effect on the material under the push of the spring force, so that the material will be more condensed. Through the inclined scraping plate, since the forming material injected by the staff into the forming die is an indefinite quantity and will only be more but not less, there may be a situation where the forming material is excessive. The inclined scraping plate can avoid this shape. Through the semi-circular strip, the sliding plate slidingly connected inside the concave strip can be further limited, improving its own stability.

[0012] Through the long plate of the present invention, after the material is formed in the forming die, the staff slowly slides the sliding plate out from the top of the forming die, and then starts the motor. The first runner will drive the second runner to rotate through the belt. Subsequently, the threaded rod starts to rotate under its influence. Due to the threaded groove, the right-angled block will drive the concave plate to gradually move outward. At this time, the concave plate will drive the cylindrical convex rod and the cylindrical concave rod to gradually disengage from the forming die. When the concave plate moves to the limit distance, it is okay. Through the first detachment of the concave plate, the cylindrical convex rod and the cylindrical concave rod stored in the precast floor slab after forming can be smoothly extracted from it, avoiding the situation that the precast floor slab may split during the detachment process because its hardness is not enough just after forming, and the contact area between the cylindrical convex rod and the cylindrical concave rod and the precast floor slab is large. Through the positioning rod, the position of the second runner is achieved, realizing the counterpoint support for the threaded rod, and increasing the stability of the threaded rod during rotation to a certain extent.

[0013] In the present invention, through the diamond-shaped block, when the staff pulls the inverted triangular plate downward, the triangular clamping block stuck in the triangular clamping opening will be separated from it under the influence of the sliding plate. The diamond-shaped block that loses the restriction of the triangular clamping block can drive the right-angled plate and the rectangular plate to move freely, achieving the effect of the second separation. Through the right-angled plate, after the concave-shaped plate is separated from the forming die, the position of the precast floor slab can be further limited, so that the cylindrical convex rod and the cylindrical concave rod can be smoothly withdrawn therefrom. Through the square rod, the movement of the right-angled plate can be restricted by the diamond-shaped block, enabling it to only perform left-right sliding work, achieving the function of restricting the position of the right-angled plate. Through the elastic plate, the triangular clamping block is maintained by the elasticity of the elastic plate and can be stuck in the triangular clamping opening all the time without being affected by external forces, achieving the function of fixing the position of the right-angled block.

[0014] In the present invention, through the limiting plate, the position of the motor can be fixed by assisting the support plate, and its stability in the working state can be increased. Through the support plate, the long plate can be well supported, and relying on its characteristic of uniform force, the stress intensity of the long plate can be maximally increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a schematic diagram of the overall structure of the long strip board of the present invention;

[0017] Figure 3 is a schematic diagram of the overall structure of the forming die of the present invention;

[0018] Figure 4 is a schematic diagram of the overall structure of the right-angled plate of the present invention;

[0019] Figure 5 is a schematic diagram of the overall structure of the long plate of the present invention;

[0020] Figure 6 is a schematic diagram of the overall structure of the diamond-shaped block of the present invention;

[0021] Figure 7 is a schematic diagram of the overall structure of the sliding plate of the present invention;

[0022] Figure 8 is a schematic diagram of the internal structure of the sliding plate of the present invention.

[0023] 1. Long board; 11. Threaded rod; 12. Rotor 2; 13. Positioning rod; 14. Right-angle block; 2. Forming mold; 21. Right-angle plate; 22. Rectangular plate; 23. Concave plate; 24. Cylindrical concave rod; 25. Cylindrical convex rod; 26. Diamond block; 261. Fixed plate; 262. Sliding plate; 263. Inverted triangle plate; 264. Triangular block; 265. Elastic plate; 27. Square rod; 28. Fixed block; 3. Slide plate; 31. Concave strip; 32. Semicircular strip; 33. Limiting block; 34. Inclined scraper; 35. Extrusion plate; 36. Cylindrical tube; 37. Closing plate; 4. Long strip; 41. Arc strip; 42. Support plate; 43. Obtuse-angle plate; 44. Bracket plate; 45. Motor; 46. Limiting plate. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0025] Example 1

[0026] See also Figures 1 - 6 The present invention is a PC prefabricated floor manufacturing forming mold, comprising:

[0027] A long board 1, a forming mold 2 is fixedly connected to the middle axis of the top of the long board 1, a slide plate 3 is arranged on the top of the forming mold 2, and a long strip board 4 is arranged directly below the long board 1;

[0028] An arc strip 41 is fixedly connected to one side of the two long strips 4 close to each other, a support plate 42 is arranged just above the arc strip 41, and the bottom of the support plate 42 is fixedly connected to the top of the long strip 4, and the left and right ends of the long strip 4 are fixedly connected to obtuse plates 43, and the top of the obtuse plates 43 is fixedly connected to a bracket plate 44, and the top center axis of the bracket plate 44 is in an arc shape, and a motor 45 is fixedly connected to the top center axis of the bracket plate 44, and the left and right sides of the outer surface of the motor 45 are fixedly connected to limit plates 46, and the limit plates 46 can assist the bracket plate 44 in fixing the position of the motor 45 and increase its stability in the working state;

[0029] The motor 45 is fixedly connected to the long board 1 through the limit plate 46, and the output end of the motor 45 is fixedly connected to a rotating wheel 1. The top of the support plate 42 is fixedly connected to the bottom of the long board 1. The support plate 42 can provide excellent support for the long board 1, and relying on its characteristic of evenly bearing force, the force strength of the long board 1 can be maximized.

[0030] The forming die 2 includes a right-angle plate 21, a rectangular plate 22, a concave plate 23, a cylindrical concave rod 24, a cylindrical convex rod 25, a rhombic block 26, a square rod 27 and a fixing block 28. Openings one are provided on the left and right sides of the forming die 2, and a square groove is provided at the bottom of the opening one. The right-angle plate 21 is arranged inside the opening one, and the bottom of the right-angle plate 21 is in contact with the bottom inner wall of the square groove. Through the right-angle plate 21, the position of the precast floor slab can be further limited after the concave plate 23 is separated from the forming die 2, so that the cylindrical convex rod 24 and the cylindrical concave rod 25 can be smoothly drawn out therefrom. The rectangular plate 22 is fixedly connected to the top of the right-angle plate 21. The concave plates 23 are arranged on the left and right sides of the forming die 2, and a rhombic groove is provided at one end of the concave plate 23 far from the right-angle plate 21. The cylindrical concave rod 24 and the cylindrical convex rod 25 are both arranged inside the forming die 2. The rhombic block 26 is fixedly connected inside the rhombic groove, and a square through-hole is provided inside the rhombic block 26. The square rod 27 is slidably connected inside the square through-hole. The fixing blocks 28 are fixedly connected to the left and right sides of the top of the long plate 1. Through the concave plate 23, during the first separation, the cylindrical convex rod 24 and the cylindrical concave rod 25 existing in the formed precast floor slab can be smoothly drawn out therefrom, avoiding the situation that the precast floor slab may split during the separation process because its hardness is not enough when it is just formed and the contact area between the cylindrical convex rod 24 and the cylindrical concave rod 25 and the precast floor slab is relatively large.

[0031] One end of the square rod 27 far from the square through-hole is fixedly connected to the fixing block 28. Through the square rod 27, the movement of the right-angle plate 21 can be limited by the rhombic block 26, so that it can only perform left-right sliding work, achieving the effect of restricting the position of the right-angle plate 21.

[0032] The mutually approaching sides of the two concave plates 23 are in contact with the right-angle plate 21, and the top of the concave plate 23 is in contact with the bottom inner wall of the square groove. The bottom of the rectangular plate 22 is in contact with the top of the concave plate 23;

[0033] The mutually remote ends of the cylindrical concave rod 24 and the cylindrical convex rod 25 are fixedly connected to the concave plate 23, and the cylindrical concave rod 24 and the cylindrical convex rod 25 are mutually adapted.

[0034] The long board 1 includes a threaded rod 11, a second runner 12, a positioning rod 13 and a right-angle block 14. Grooves are provided on both the left and right sides of the long board 1. The threaded rod 11 is horizontally arranged inside the groove. One end of the threaded rod 11 is rotatably connected to the inner wall of the groove, and the other end of the threaded rod 11 is fixedly connected to the second runner 12. The positioning rod 13 is rotatably connected to the side of the second runner 12 away from the threaded rod 11. A threaded groove is provided inside the right-angle block 14, and the right-angle block 14 is threadedly connected to the threaded rod 11 through the threaded groove. Through the long board 1, after the material is formed in the forming die 2, the staff slowly slides the skateboard 3 out from the top of the forming die 2, and then starts the motor 45. The first runner will drive the second runner 12 to rotate through the belt. Subsequently, the threaded rod 11 starts to rotate under its influence. Due to the threaded groove, the right-angle block 14 will drive the concave plate 23 to gradually move outward. At this time, the concave plate 23 will drive the cylindrical convex rod 24 and the cylindrical concave rod 25 to gradually disengage from the forming die 2. When the concave plate 23 moves to the limit distance, it is okay.

[0035] The front and back sides of the right-angle block 14 are in contact with the front and back sides of the inner wall of the groove. The second runner 12 is connected to the long board 1 through the positioning rod 13. Through the positioning rod 13, the position of the second runner 12 is positioned, and the threaded rod 11 is supported in position. To a certain extent, the stability of the threaded rod 11 during rotation is increased. A belt is sleeved on the outer surfaces of the first runner and the second runner 12. The right-angle block 14 is fixedly connected to the concave plate 23.

[0036] The diamond-shaped block 26 includes a fixing plate 261, a sliding plate 262, an inverted triangular plate 263, a triangular clamping block 264 and an elastic plate 265. An opening two is provided at the bottom of the square through-hole. The fixing plate 261 is fixedly connected to the lower end inside the opening two. The sliding plate 262 is vertically slidably connected to the central axis inside the fixing plate 261, and the bottom of the sliding plate 262 penetrates through the fixing plate 261 and extends to the outside. The top of the inner surface of the inverted triangular plate 263 is fixedly connected to the bottom of the sliding plate 262. The triangular clamping block 264 is fixedly connected to the top of the sliding plate 262. The triangular clamping block 264 is connected to the fixing plate 261 through the elastic plate 265. Through the elastic plate 265, the triangular clamping block 264 is maintained by the elasticity of the elastic plate 265 and can be stuck in the triangular clamping opening all the time without being affected by external forces, achieving the effect of fixing the position of the right-angle block 14. Through the diamond-shaped block 26, when the staff pulls the inverted triangular plate 263 downward, the triangular clamping block 264 stuck in the triangular clamping opening will disengage from it under the influence of the sliding plate 262. The diamond-shaped block 26 without the restriction of the triangular clamping block 264 can drive the right-angle plate 21 and the rectangular plate 22 to move freely, achieving the effect of the second disengagement;

[0037] A triangular clamping opening is provided at the bottom of the square rod 27. The shape and size of the triangular clamping block 264 are adapted to the shape and size of the triangular clamping opening.

[0038] Embodiment 2

[0039] Distinctive features from Example 1

[0040] Please refer to Figures 7 - 8 , the present invention is a PC precast floor manufacturing and forming mold, including:

[0041] The sliding plate 3 includes a concave strip 31, a semi-circular strip 32, a limiting block 33 and an inclined scraping plate 34. The concave strip 31 is arranged on the left and right sides of the sliding plate 3. The semi-circular strip 32 is fixedly connected to the bottom of the inner surface of the concave strip 31. The limiting block 33 is fixedly connected to the front and rear sides of the bottom of the concave strip 31. The inclined scraping plate 34 is fixedly connected to the front and rear sides of the sliding plate 3.

[0042] The bottom of the concave strip 31 is in contact with the top of the rectangular plate 22, and the concave strip 31 is fixedly connected to the forming mold 2 through the limiting block 33. Semi-circular grooves are opened at the left and right ends of the bottom of the sliding plate 3, and the inner wall of the semi-circular groove is in contact with the outer surface of the semi-circular strip 32. Through the semi-circular strip 32, the sliding plate 3 slidingly connected inside the concave strip 31 can be further limited, improving its own stability.

[0043] An extrusion plate 35 is arranged directly below the sliding plate 3. A square notch is opened at the bottom of the sliding plate 3. A circular opening is opened at the top of the inner wall of the square notch. A cylindrical tube 36 is fixedly connected inside the circular opening. A closing plate 37 is fixedly installed at the top of the cylindrical tube 36;

[0044] The shape and size of the extrusion plate 35 are the same as those of the square notch, and the bottom of the extrusion plate 35 is in contact with the top of the forming mold 2. The left and right sides of the extrusion plate 35 and the inclined scraping plate 34 are in contact with the right-angled plate 21 and the rectangular plate 22. Through the extrusion plate 35, the extrusion plate 35 located below the sliding plate 3 will have a certain extrusion effect on the material under the push of the spring force, thereby making the material more cohesive.

[0045] The bottoms of the extrusion plate 35 and the inclined scraping plate 34 are at the same height. Through the inclined scraping plate 34, because the forming material injected by the staff into the forming mold 2 is an indefinite amount and will only be more and not less, there may be a situation where the forming material is excessive. The inclined scraping plate 34 can avoid this shape from appearing. A spring is arranged inside the cylindrical tube 36, and the upper and lower ends of the spring are respectively fixedly connected to the top of the extrusion plate 35 and the bottom of the closing plate 37.

[0046] A specific application of this embodiment is: slide the slide plate 3 out of the concave strip 31, at this time the top of the forming mold 2 will be exposed to the outside, and then inject the material required for the prefabricated floor slab into the forming mold 2, when the material is injected, slide the slide plate 3 back to the top of the forming mold 2, the inclined scraper 34 will scrape off some excess material in the forming mold 2, and the extrusion plate 35 located under the slide plate 3 will have a certain extrusion property on the material under the push of the spring elastic force, thereby making the material more condensed. After the material is formed in the forming mold 2, the staff slowly slides the slide plate 3 out of the top of the forming mold 2, starts the motor 45, and the wheel 1 drives the wheel 2 12 to rotate through the belt, and then the threaded rod 11 starts to rotate under its influence, and the right-angle block 14 will drive the concave plate 23 to gradually move outward due to the thread groove, and at this time the concave plate 23 will drive the cylindrical convex The rod 24 and the cylindrical concave rod 25 gradually disengage from the forming mold 2. When the concave plate 23 moves to the limit distance, the first disengagement is achieved, and the cylindrical convex rod 24 and the cylindrical concave rod 25 stored in the prefabricated floor slab after molding can be smoothly pulled out therefrom, avoiding the prefabricated floor slab from splitting due to its own insufficient hardness just formed, and the cylindrical convex rod 24 and the cylindrical concave rod 25 have a large contact area with the prefabricated floor slab, so as to avoid the occurrence of splitting during the disengagement process. At this time, the second disengagement work is carried out, and the staff pulls the inverted triangle plate 263 downward, and the triangular block 264 stuck in the triangular bayonet will be disengaged from it under the influence of the sliding plate 262. The rhombus block 26 that loses the restriction of the triangular block 264 can drive the right-angle plate 21 and the rectangular plate 22 to move freely, thereby achieving the second disengagement effect, and then the staff can take the formed prefabricated floor slab out of the forming mold 2.

[0047] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A PC precast floor slab manufacturing and forming mold, Characterized in that, Comprising: A long board (1), a forming mold (2) is fixedly connected to the middle axis of the top of the long board (1), a sliding board (3) is arranged on the top of the forming mold (2), and a long strip board (4) is arranged directly below the long board (1); On one side of the two long strip boards (4) close to each other, an arc-shaped strip (41) is fixedly connected, a support board (42) is arranged directly above the arc-shaped strip (41), and the bottom of the support board (42) is fixedly connected to the top of the long strip board (4). Obtuse angle plates (43) are fixedly connected to the left and right ends of the long strip board (4), a support bracket board (44) is fixedly connected to the top of the obtuse angle plate (43), and the middle axis of the top of the support bracket board (44) is arc-shaped. A motor (45) is fixedly connected to the middle axis of the top of the support bracket board (44), and limiting plates (46) are fixedly connected to the left and right sides of the outer surface of the motor (45); The motor (45) is fixedly connected to the long board (1) through the limiting plates (46), and the output end of the motor (45) is fixedly connected to a first runner, and the top of the support board (42) is fixedly connected to the bottom of the long board (1); The forming mold (2) includes a right-angle board (21), a rectangular board (22), a concave board (23), a cylindrical concave rod (24), a cylindrical convex rod (25), a rhombic block (26), a square rod (27) and a fixing block (28). Openings one are arranged on the left and right sides of the forming mold (2), and a square groove is arranged at the bottom of the opening one. The right-angle board (21) is arranged inside the opening one, and the bottom of the right-angle board (21) is in contact with the bottom inner wall of the square groove. The rectangular board (22) is fixedly connected to the top of the right-angle board (21). The concave board (23) is arranged on the left and right sides of the forming mold (2), and a rhombic groove is arranged at one end of the concave board (23) away from the right-angle board (21). The cylindrical concave rod (24) and the cylindrical convex rod (25) are both arranged inside the forming mold (2). The rhombic block (26) is fixedly connected inside the rhombic groove, and a square through-hole is arranged inside the rhombic block (26). The square rod (27) is slidably connected inside the square through-hole. The fixing blocks (28) are fixedly connected to the left and right sides of the top of the long board (1); One end of the square rod (27) away from the square through-hole is fixedly connected to the fixing block (28); The long board (1) includes a threaded rod (11), a second runner (12), a positioning rod (13) and a right-angle block (14). Grooves are arranged on the left and right sides of the long board (1). The threaded rod (11) is horizontally arranged inside the groove. One end of the threaded rod (11) is rotatably connected to the inner wall of the groove, and the other end of the threaded rod (11) is fixedly connected to the second runner (12). The positioning rod (13) is rotatably connected to the side of the second runner (12) away from the threaded rod (11). A threaded groove is arranged inside the right-angle block (14), and the right-angle block (14) is threadedly connected to the threaded rod (11) through the threaded groove.

2. A PC precast floor slab manufacturing and forming mold according to claim 1, Characterized in that: One side of the two concave plates (23) close to each other is in contact with the right-angle plate (21), and the top of the concave plate (23) is in contact with the bottom of the inner wall of the square groove. The bottom of the rectangular plate (22) is in contact with the top of the concave plate (23). The ends of the cylindrical concave rod (24) and the cylindrical convex rod (25) away from each other are fixedly connected to the concave plate (23), and the cylindrical concave rod (24) and the cylindrical convex rod (25) are adapted to each other.

3. A PC precast floor slab manufacturing and forming mold according to claim 1, characterized in that: The front and rear sides of the right-angle block (14) are in contact with the front and rear sides of the inner wall of the groove. The second runner (12) is connected to the long plate (1) through the positioning rod (13). A belt is sleeved on the outer surfaces of the first runner and the second runner (12). The right-angle block (14) is fixedly connected to the concave plate (23).

4. A PC precast floor slab manufacturing and forming mold according to claim 2, characterized in that: The diamond-shaped block (26) includes a fixed plate (261), a sliding plate (262), an inverted triangular plate (263), a triangular clamping block (264) and an elastic plate (265). An opening two is opened at the bottom of the square through-port. The fixed plate (261) is fixedly connected to the lower end inside the opening two. The sliding plate (262) is vertically slidably connected to the middle axis inside the fixed plate (261), and the bottom of the sliding plate (262) penetrates through the fixed plate (261) and extends to the outside. The top of the inner surface of the inverted triangular plate (263) is fixedly connected to the bottom of the sliding plate (262). The triangular clamping block (264) is fixedly connected to the top of the sliding plate (262). The triangular clamping block (264) is connected to the fixed plate (261) through the elastic plate (265). A triangular clamping opening is opened at the bottom of the square rod (27). The shape and size of the triangular clamping block (264) are adapted to the shape and size of the triangular clamping opening.

5. A PC precast floor slab manufacturing and forming mold according to claim 1, characterized in that: The sliding plate (3) includes a concave strip (31), a semi-circular strip (32), a limiting block (33) and an inclined scraping plate (34). The concave strips (31) are arranged on the left and right sides of the sliding plate (3). The semi-circular strip (32) is fixedly connected to the bottom of the inner surface of the concave strip (31). The limiting blocks (33) are fixedly connected to the front and rear sides of the bottom of the concave strip (31). The inclined scraping plates (34) are fixedly connected to the front and rear sides of the sliding plate (3).

6. A PC precast floor slab manufacturing and forming mold according to claim 5, characterized in that: The bottom of the concave strip (31) is in contact with the top of the rectangular plate (22), and the concave strip (31) is fixedly connected to the forming mold (2) through the limiting block (33). Semi-circular grooves are opened at the left and right ends of the bottom of the sliding plate (3). The inner wall of the semi-circular groove is in contact with the outer surface of the semi-circular strip (32).

7. A PC precast floor slab manufacturing and forming mold according to claim 6, characterized in that: A pressing plate (35) is arranged directly below the skateboard (3). A square notch is formed in the bottom of the skateboard (3). A circular opening is formed in the top of the inner wall of the square notch. A cylindrical pipe (36) is fixedly connected inside the circular opening. A closing plate (37) is fixedly installed at the top of the cylindrical pipe (36). The shape and size of the pressing plate (35) are the same as those of the square notch, and the bottom of the pressing plate (35) is in contact with the top of the forming die (2). The left and right sides of the pressing plate (35) and the inclined scraping plate (34) are in contact with the right-angle plate (21) and the rectangular plate (22).

8. A forming die for manufacturing a PC precast floor slab according to claim 7, characterized in that: The bottoms of the pressing plate (35) and the inclined scraping plate (34) are at the same height. A spring is arranged inside the cylindrical pipe (36). The upper and lower ends of the spring are fixedly connected to the top of the pressing plate (35) and the bottom of the closing plate (37) respectively.

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