Prefabricated mold convenient to unshell

Abstract

The utility model provides a prefabricated mold convenient to unshell, and relates to the field of prefabricated concrete pipe fitting molds. The four corners of the bottom end face of the bottom plate are each fixedly connected with a supporting leg. The upper end face of the bottom plate is slidably connected with a prefabricated mold, and a pushing mechanism is arranged at the bottom of the bottom plate. Through the cooperation of the rotating nuts, the screw rods, the synchronous rotating shaft, the first chain wheel and the second chain wheel, when the left template and the right template are separated, the left template and the right template can be driven to move in the opposite directions without rotating the two screw rods respectively, so that the efficiency of the separation operation of the left template and the right template is improved; the mold for producing the reinforced concrete prefabricated pipe solves the problem that in the using process of an existing mold for producing the reinforced concrete prefabricated pipe, when a left mold plate and a right mold plate are separated, due to the fact that the left mold plate and the right mold plate can be driven to move in the opposite directions only by rotating two screw rods respectively, the efficiency is low when the left mold plate and the right mold plate are separated.

Description

Technical Field

[0001] The utility model relates to the technical field of precast concrete pipe fitting molds, in particular to a precast mold convenient for shell removal. Background Technique

[0002] Precast concrete pipe fittings refer to pipes made of concrete or reinforced concrete, mainly used for conveying fluids such as water, oil, and gas. These pipe fittings can be divided into several different types, including plain concrete pipes, ordinary reinforced concrete pipes, self-stressing reinforced concrete pipes, and prestressed concrete pipes. At present, when making precast concrete pipe fittings, precast molds are generally used.

[0003] For example, in a mold for producing reinforced concrete precast pipes disclosed in the existing patent application number: CN202221444164.X, although the formed reinforced concrete precast pipes can be easily taken out during the use of this mold, when separating the left template and the right template, since two screws need to be rotated separately to drive the left template and the right template to move in opposite directions, the efficiency of separating the left template and the right template is relatively low. And when the above-mentioned mold for producing reinforced concrete precast pipes is in use, since the bottoms of the left template and the right template directly contact the inner bottom end surface of the movement grooves opened on the bottom plate, the friction between the left template and the right template during movement is large, resulting in physical exertion when the left template and the right template are separated and closed. Content of the Utility Model

[0004] An embodiment of the present disclosure relates to a precast mold convenient for shell removal. Through the cooperation of a rotating nut, a screw, a synchronous rotating shaft, a first sprocket, and a second sprocket, when separating the left template and the right template, it can be achieved by simply rotating the synchronous rotating shaft in the reverse direction. Since it is not necessary to rotate two screws separately to drive the left template and the right template to move in opposite directions, the efficiency of separating the left template and the right template is improved.

[0005] In the first aspect of the present disclosure, a precast mold convenient for shell removal is provided, specifically including: a bottom plate; a support leg is fixedly connected to each of the four corners of the bottom end surface of the bottom plate; a precast mold is slidably connected to the upper end surface of the bottom plate, and a jacking mechanism is provided at the bottom of the bottom plate; a circular cushion plate is fixedly installed in the middle of the upper end surface of the bottom plate, and a shaping cylinder is fixedly connected to the upper end surface of the circular cushion plate; a driving assembly is provided outside the precast mold.

[0006] Furthermore, two first strip-shaped chutes are symmetrically arranged in the front-back direction on the upper end surface of the bottom plate, and four second strip-shaped chutes are symmetrically arranged in the left-right direction on the upper end surface of the bottom plate.

[0007] Further, the precast mold includes a left template, a right template, an arc-shaped shaping groove, a bushing, a positioning post, a guiding slider, and a supporting roller. Four supporting rollers are installed at the bottom of both the left template and the right template, and the supporting rollers at the bottom of the left template and the right template are respectively in rolling connection with the inner bottom end surfaces of two first strip-shaped chutes; an arc-shaped shaping groove is provided on the opposite surfaces of the left template and the right template, and four bushings are fixedly embedded inside the left end surface of the right template; four positioning posts are fixedly connected to the right end surface of the left template; two guiding sliders are fixedly connected to the lower parts of the opposite surfaces of the left template and the right template, and the four guiding sliders are respectively in sliding connection with four second strip-shaped chutes.

[0008] Further, when the left template and the right template are in a closed state, the four positioning posts are respectively inserted into the four bushings.

[0009] Further, the pushing mechanism includes a circular pushing plate, a vertical sliding rod, a driving screw rod, a driving motor, and an annular pushing plate. Six vertical sliding rods are fixedly connected in an annular array at the edge of the upper end surface of the circular pushing plate, and the upper ends of the six vertical sliding rods are fixedly connected with an annular pushing plate, and the six vertical sliding rods penetrate through the bottom plate and the circular backing plate; the driving motor is fixedly installed in the middle of the bottom end surface of the bottom plate, and the lower end of the rotating shaft of the driving motor is fixedly connected with a driving screw rod, and the driving screw rod is in threaded connection with the circular pushing plate; the annular pushing plate is located above the circular backing plate, and the annular pushing plate is located outside the shaping cylinder.

[0010] Further, the driving assembly includes a support plate, a rotating nut, a screw rod, a synchronous rotating shaft, a first sprocket, and a second sprocket. The number of the support plates is two, and the two support plates are respectively fixedly installed on the left and right sides of the upper end surface of the bottom plate. A rotating nut is rotatably connected to the opposite surfaces of the two support plates, and a screw rod is threadedly connected inside each rotating nut. The two screw rods respectively penetrate through the two support plates, and the opposite ends of the two screw rods are respectively fixedly connected with the opposite surfaces of the left template and the right template; the synchronous rotating shaft is rotatably connected to the front side of the bottom end surface of the bottom plate, and a first sprocket is fixedly installed on each of the left and right sides of the outside of the synchronous rotating shaft; a second sprocket is fixedly installed on the outside of each rotating nut, and the two second sprockets are respectively in transmission connection with the two first sprockets through two chains.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. Through the cooperation of the rotating nut, the screw rod, the synchronous rotating shaft, the first sprocket, and the second sprocket, when the left template and the right template are separated, it can be achieved only by reversely rotating the synchronous rotating shaft. Since it is not necessary to respectively rotate the two screw rods to drive the left template and the right template to move in opposite directions, the efficiency of separating the left template and the right template is improved, and thus the convenience of the precast concrete pipe fitting during shell removal is improved.

[0013] 2. By installing support rollers at the bottoms of the left template and the right template, and the support rollers at the bottoms of the left template and the right template are respectively in rolling connection with the inner bottom end faces of the two first strip-shaped chutes, it is avoided that the bottoms of the left template and the right template directly contact the upper end face of the bottom plate, thereby greatly reducing the friction when the left template and the right template move, and making it time-saving and labor-saving for the left template and the right template to perform separation and closing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0015] The drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0016] In the drawings:

[0017] Figure 1 A schematic structural diagram showing the overall structure of the present application is shown;

[0018] Figure 2 A schematic structural diagram showing the bottom view of the present application is shown;

[0019] Figure 3 A schematic structural diagram showing the present application in a disassembled state is shown;

[0020] Figure 4 A schematic structural diagram showing a partial cross-section of the shaping cylinder of the present application is shown;

[0021] Figure 5 A schematic structural diagram showing the left template and the right template of the present application after being disassembled is shown;

[0022] Figure 6 A schematic structural diagram showing a partial cross-section of the bottom plate, the left template and the right template of the present application is shown;

[0023] Figure 7 A schematic structural diagram showing the support plate, the rotating nut, the first sprocket and the second sprocket of the present application is shown.

[0024] LIST OF REFERENCE NUMERALS

[0025] 1. Bottom plate; 101. Support leg; 102. First strip-shaped chute; 103. Second strip-shaped chute; 104. Circular cushion plate;

[0026] 2. Prefabricated mold; 201. Left template; 202. Right template; 203. Arc-shaped shaping groove; 204. Bushing; 205. Positioning column; 206. Guide slider; 207. Support roller;

[0027] 3. Jacking mechanism; 301. Circular jacking plate; 302. Vertical sliding rod; 303. Driving screw; 304. Driving motor; 305. Annular jacking plate;

[0028] 4. Shaping cylinder;

[0029] 5. Driving component; 501. Support plate; 502. Rotating nut; 503. Screw; 504. Synchronous rotating shaft; 505. First sprocket; 506. Second sprocket. Detailed implementation mode

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0031] Embodiment 1: Please refer to Figures 1 to 7 :

[0032] The present utility model provides a precast mold convenient for shelling, including: a bottom plate 1; a support leg 101 is fixedly connected to each of the four corners of the bottom end surface of the bottom plate 1; a precast mold 2 is slidably connected to the upper end surface of the bottom plate 1, and a jacking mechanism 3 is provided at the bottom of the bottom plate 1; a circular cushion plate 104 is fixedly installed in the middle of the upper end surface of the bottom plate 1, and a shaping cylinder 4 is fixedly connected to the upper end surface of the circular cushion plate 104; a driving component 5 is provided outside the precast mold 2; two first strip-shaped chutes 102 are symmetrically arranged in the front and back on the upper end surface of the bottom plate 1, and four second strip-shaped chutes 103 are symmetrically arranged in the left and right on the upper end surface of the bottom plate 1 for sliding connection with the guiding sliders 206.

[0033] The prefabricated mold 2 includes a left template 201, a right template 202, an arc-shaped shaping groove 203, a bushing 204, a positioning column 205, a guiding slider 206, and a supporting roller 207. Four supporting rollers 207 are installed at the bottom of both the left template 201 and the right template 202, and the supporting rollers 207 at the bottom of the left template 201 and the right template 202 are respectively in rolling connection with the inner bottom end surfaces of two first strip-shaped chutes 102; an arc-shaped shaping groove 203 is provided on the opposite surfaces of the left template 201 and the right template 202, and four bushings 204 are fixedly inlaid inside the left end surface of the right template 202, and four positioning columns 205 are fixedly connected to the right end surface of the left template 201; two guiding sliders 206 are fixedly connected to the lower parts of the opposite surfaces of the left template 201 and the right template 202, and the four guiding sliders 206 are respectively in sliding connection with four second strip-shaped chutes 103; when the left template 201 and the right template 202 are in a closed state, the four positioning columns 205 are respectively inserted into the four bushings 204; the accuracy of the left template 201 and the right template 202 after closing is improved.

[0034] The driving assembly 5 includes a support plate 501, a rotating nut 502, a screw rod 503, a synchronous rotating shaft 504, a first sprocket 505, and a second sprocket 506. The number of support plates 501 is two, and the two support plates 501 are respectively fixedly installed on the left and right sides of the upper end surface of the bottom plate 1. A rotating nut 502 is rotatably connected to the opposite surfaces of the two support plates 501, and a screw rod 503 is threadedly connected inside each rotating nut 502. The two screw rods 503 respectively penetrate through the two support plates 501, and the opposite ends of the two screw rods 503 are respectively fixedly connected to the opposite surfaces of the left template 201 and the right template 202; the synchronous rotating shaft 504 is rotatably connected to the front side of the bottom end surface of the bottom plate 1, and a first sprocket 505 is fixedly installed on each of the left and right sides of the outer part of the synchronous rotating shaft 504; a second sprocket 506 is fixedly installed on the outer part of each rotating nut 502, and the two second sprockets 506 are respectively in transmission connection with the two first sprockets 505 through two chains; through the setting of the driving assembly 5, it is used to drive the left template 201 and the right template 202 to perform closing and separating operations.

[0035] Embodiment 2, on the basis of Embodiment 1, as Figure 1 and Figure 6As shown in the figure, the pushing mechanism 3 includes a circular pushing plate 301, vertical sliding rods 302, driving screws 303, a driving motor 304, and an annular pushing plate 305. Six vertical sliding rods 302 are fixedly connected to the edge of the upper end surface of the circular pushing plate 301 in an annular array. The upper ends of the six vertical sliding rods 302 are fixedly connected to the annular pushing plate 305, and the six vertical sliding rods 302 penetrate through the bottom plate 1 and the circular cushion plate 104. The driving motor 304 is fixedly installed in the middle of the bottom end surface of the bottom plate 1, and the lower end of the rotating shaft of the driving motor 304 is fixedly connected to the driving screw 303. The driving screw 303 is threadedly connected to the circular pushing plate 301. The annular pushing plate 305 is located above the circular cushion plate 104 and outside the shaping cylinder 4. Through the setting of the pushing mechanism 3, it is used to push the formed precast concrete pipe fittings upward, further improving the convenience of demolding the precast concrete pipe fittings.

[0036] The working principle of this embodiment: When in use, when making precast concrete pipe fittings, by rotating the synchronous rotating shaft 504, two first sprockets 505, two second sprockets 506, and two rotating nuts 502 are driven to rotate. Then, under the action of the internal threads of the two rotating nuts 502, the two screw rods 503 drive the left template 201 and the right template 202 to move simultaneously in opposite directions, so that the left template 201 and the right template 202 are closed together. At this time, the four positioning columns 205 are respectively inserted into the four bushings 204, making the closing of the left template 201 and the right template 202 more precise. Then, the production raw materials are poured into the space between the shaping cylinder 4 and the two arc-shaped shaping grooves 203, and above the annular pushing plate 305, and wait for shaping.

[0037] When the precast concrete pipe fittings are formed and need to be demolded, only by rotating the synchronous rotating shaft 504 in the reverse direction can the two first sprockets 505, two second sprockets 506, and two rotating nuts 502 be driven to rotate in the reverse direction. Then, under the action of the internal threads of the two rotating nuts 502, the two screw rods 503 drive the left template 201 and the right template 202 to move simultaneously in opposite directions, separating the left template 201 and the right template 202. Then, the driving motor 304 is started, so that the rotating shaft of the driving motor 304 drives the driving screw 303 to rotate. Then, the circular pushing plate 301 drives the vertical sliding rods 302 and the annular pushing plate 305 to move upward in a straight line under the action of the thread, thereby pushing the formed precast concrete pipe fittings upward, making the inner peripheral surface of the precast concrete pipe fittings separate from the outer peripheral surface of the shaping cylinder 4, further improving the convenience of the precast concrete pipe fittings during shell removal.

[0038] By installing support rollers 207 at the bottoms of the left template 201 and the right template 202, and the support rollers 207 at the bottoms of the left template 201 and the right template 202 are respectively in rolling connection with the inner bottom end faces of the two first strip-shaped chutes 102, it is avoided that the bottoms of the left template 201 and the right template 202 directly contact the upper end face of the bottom plate 1, thereby greatly reducing the friction force when the left template 201 and the right template 202 move.

Claims

1. A prefabricated mold for convenient shelling, comprising: Bottom plate (1); a support leg (101) is fixedly connected to each of the four corners of the bottom end surface of the bottom plate (1); characterized in that a prefabricated mold (2) is slidably connected to the upper end surface of the bottom plate (1), and a jacking mechanism (3) is provided at the bottom of the bottom plate (1); a circular cushion plate (104) is fixedly installed in the middle of the upper end surface of the bottom plate (1), and a shaping cylinder (4) is fixedly connected to the upper end surface of the circular cushion plate (104); a driving assembly (5) is provided outside the prefabricated mold (2).

2. The prefabricated mold for convenient shelling according to claim 1, characterized in that: Two first strip-shaped chutes (102) are symmetrically arranged in the front and back on the upper end surface of the bottom plate (1), and four second strip-shaped chutes (103) are symmetrically arranged in the left and right on the upper end surface of the bottom plate (1).

3. The prefabricated mold for convenient shelling according to claim 2, wherein: The prefabricated mold (2) includes a left template (201), a right template (202), an arc-shaped shaping groove (203), a bushing (204), a positioning column (205), a guiding slider (206) and a supporting roller (207). Four supporting rollers (207) are installed at the bottom of both the left template (201) and the right template (202), and the supporting rollers (207) at the bottom of the left template (201) and the right template (202) are respectively in rolling connection with the inner bottom end surfaces of the two first strip-shaped chutes (102); an arc-shaped shaping groove (203) is formed on the opposite surfaces of the left template (201) and the right template (202), and four bushings (204) are fixedly inlaid inside the left end surface of the right template (202); four positioning columns (205) are fixedly connected to the right end surface of the left template (201); two guiding sliders (206) are fixedly connected to the lower parts of the opposite surfaces of the left template (201) and the right template (202), and the four guiding sliders (206) are respectively slidably connected to the four second strip-shaped chutes (103).

4. The prefabricated mold convenient for shelling according to claim 3, characterized in that: When the left template (201) and the right template (202) are in a closed state, the four positioning columns (205) are respectively inserted into the four bushings (204).

5. The prefabricated mold for convenient shelling according to claim 1, characterized in that: The jacking mechanism (3) includes a circular jacking plate (301), a vertical sliding rod (302), a driving screw rod (303), a driving motor (304) and an annular jacking plate (305). Six vertical sliding rods (302) are fixedly connected to the edge of the upper end surface of the circular jacking plate (301) in an annular array, and the upper ends of the six vertical sliding rods (302) are fixedly connected to the annular jacking plate (305), and the six vertical sliding rods (302) penetrate through the bottom plate (1) and the circular cushion plate (104); the driving motor (304) is fixedly installed in the middle of the bottom end surface of the bottom plate (1), and the lower end of the rotating shaft of the driving motor (304) is fixedly connected to the driving screw rod (303), and the driving screw rod (303) is in threaded connection with the circular jacking plate (301); the annular jacking plate (305) is located above the circular cushion plate (104), and the annular jacking plate (305) is located outside the shaping cylinder (4).

6. The prefabricated mold convenient for shelling according to claim 3, wherein: The driving assembly (5) includes a support plate (501), a rotating nut (502), a screw rod (503), a synchronous rotating shaft (504), a first sprocket (505) and a second sprocket (506). The number of the support plates (501) is two, and the two support plates (501) are respectively fixedly installed on the left and right sides of the upper end surface of the bottom plate (1). A rotating nut (502) is rotatably connected to the back surface of each of the two support plates (501), and a screw rod (503) is threadedly connected inside each rotating nut (502). The two screw rods (503) respectively penetrate through the two support plates (501), and the opposite ends of the two screw rods (503) are respectively fixedly connected to the back surfaces of the left template (201) and the right template (202); The synchronous rotating shaft (504) is rotatably connected to the front side of the bottom end surface of the bottom plate (1), and a first sprocket (505) is fixedly installed on each of the left and right sides of the outside of the synchronous rotating shaft (504); A second sprocket (506) is fixedly installed on the outside of each of the rotating nuts (502), and the two second sprockets (506) are respectively drivingly connected to the two first sprockets (505) through two chains.

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