Cement pipe forming die

Abstract

The utility model discloses a cement pipe forming die which comprises an outer die body and an inner die body, the inner die body comprises an inner supporting block which forms a circular tube shape and is attached to the inner wall of a cement pipe and a supporting assembly used for driving the inner supporting block, and the outer die body comprises a clamping block and an outer die sleeve used for fixing the clamping block. One end, opposite to the outer mold body and the inner mold body, of the outer mold sleeve extends to form a closed part, the closed part further extends inwards to form an annular inner clamping part matched with an inner hole of the inner mold body, an upper mold cover is arranged at the other end of the outer mold body and the other end of the inner mold body, and the upper mold cover is in bolted connection with the outer mold sleeve and is provided with a sprue gate; according to the cement pipe forming mold, the pouring cavity is formed through the design of the inner mold body and the outer mold body, the outer mold sleeve is arranged outside the outer mold body and fastened in a reverse mode, the inner mold body is supported and disassembled through the supporting assembly, and therefore the mold can be conveniently assembled and disassembled after pouring.

Description

Technical Field

[0001] The utility model relates to the technical field of cement pipe forming, in particular to a cement pipe forming mould. Background Art

[0002] Cement pipe piles are essential materials for construction, also known as cement pressure pipes and reinforced concrete pipes. They can be used as drainage pipes in urban construction, sewage, flood control and drainage, as well as water pipes and farmland wells used in some special factories and mines. The sewage and drainage pipes on the market mainly include ductile iron water supply pipes, synthetic material pipes, cement pipes, etc. Compared with various advantages such as local materials, energy saving and environmental protection, and cost-effectiveness, cement is still the most important pipe material in municipal sewage and drainage projects.

[0003] The manufacturing method of cement pipe piles in the prior art is to first make a steel frame and place it in a mold, and then inject cement into the mold. The pouring grouting preparation is prone to produce bubbles, which in turn affects the quality of the cement pipe. In addition, many of them are fixedly poured without centrifugal treatment, resulting in unstable center of gravity, uneven pouring and poor molding strength. Therefore, the casting mold is crucial to the quality of the formed cement pipe. Utility Model Content

[0004] In view of the prior art, the purpose of the present invention is to provide a mold structure that is convenient for forming cement pipes. The forming mold of this embodiment can be easily assembled and disassembled after pouring.

[0005] In order to achieve the above objectives, the technical solution adopted by the utility model is: a cement pipe forming mold, including an outer mold body and an inner mold body, the inner mold body including an inner support block that forms a circular tubular shape and fits the inner wall of the cement pipe and a support assembly for driving the inner support block, the outer mold body including a clamping block and an outer mold sleeve for fixing the clamping block, the outer mold sleeve is extended relative to one end of the outer mold body and the inner mold body and is provided with a closing portion, the closing portion also extends inward to form an annular inner clamping portion that matches the inner hole of the inner mold body, the other end of the outer mold body and the inner mold body is provided with an upper mold cover, the upper mold cover is bolted to the outer mold sleeve and is provided with a pouring port.

[0006] As a further configuration of the above solution, the inner support blocks are configured as two sector-shaped blocks and two semi-ring blocks, and the sector-shaped blocks and the semi-ring blocks are spaced and arranged opposite to each other in the circumferential direction.

[0007] As a further configuration of the above scheme, the support assembly includes a transmission frame, a screw rod and a gear set, the gear set includes a driven wheel circumferentially fixed to the screw rod and a transmission wheel for meshing transmission, and the central axis of the terminal transmission wheel of the gear set is connected to a hexagonal column.

[0008] As a further configuration of the above solution, the inner ring of the outer mold sleeve is provided with a limiting sliding groove, and the clamping block on the outer mold body is provided with a limiting sliding block.

[0009] As a further configuration of the above solution, the outer mold sleeve is also provided with a card slot and a connecting shaft, and the card slot and the connecting shaft are used to cooperate with the centrifuge base for fixing.

[0010] Beneficial effects: The cement pipe forming mold of the utility model forms a casting cavity through the design of inner and outer mold bodies, and an outer mold sleeve is arranged outside the outer mold body and is retrogradely fastened, while the inner mold body is supported and disassembled by a supporting assembly. The staff can conveniently arrange and disassemble it during use, and the mold can be conveniently assembled and disassembled after pouring by axially disassembling the outer mold sleeve relative to the clamping block and rotating the hexagonal column to drive the screw to rotate and control the movement of the fan-shaped block. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of a cement pipe forming tool of the utility model.

[0012] Figure 2 It is a cross-sectional view of the outer mold sleeve of the utility model.

[0013] Figure 3 It is a three-dimensional diagram of the outer mold sleeve of the utility model.

[0014] Figure 4 It is a radial inner mold body cross-sectional view of the utility model.

[0015] Figure 5 It is a cross-sectional view of the axial inner mold body of the utility model.

[0016] Figure numerals: 1. outer mold body; 11. clamping block; 12. outer mold sleeve; 121. limit slide groove; 122. limit slider; 13. closing part; 14. inner clamping part; 16. clamping groove; 17. connecting shaft; 18. centrifuge base; 2. inner mold body; 21. inner support block; 211. fan-shaped block; 212. semi-ring block; 22. support assembly; 221. transmission frame; 222. screw; 223. transmission wheel; 224. driven wheel; 3. upper mold cover; 32. pouring port; 9. cement pipe. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0018] like Figure 1-5A cement pipe forming mold shown in the figure includes an outer mold body 1 and an inner mold body 2, the inner mold body 2 includes an inner support block 21 that forms a circular tubular shape and fits the inner wall of the cement pipe 9 and a support assembly 22 for driving the inner support block 21, the outer mold body 1 includes a clamping block 11 and an outer mold sleeve 12 for fixing the clamping block 11, the outer mold sleeve 12 is extended relative to one end of the outer mold body 1 and the inner mold body 2 and is provided with a closing portion 13, the closing portion 13 also extends inward to form a ring-shaped inner clamping portion 14 that matches the inner hole of the inner mold body 2, the other end of the outer mold body 1 and the inner mold body 2 is provided with an upper mold cover 3, the upper mold cover 3 is bolted to the outer mold sleeve 12 and is provided with a pouring port 32.

[0019] As a further configuration of the above solution, the inner support block 21 is configured as two sector blocks 211 and two semi-ring blocks 212, and the sector blocks 211 and the semi-ring blocks 212 are spaced and arranged opposite to each other in the circumferential direction.

[0020] As a further configuration of the above scheme, the support assembly 22 includes a transmission frame 221, a screw rod 222 and a gear set, wherein the gear set includes a driven wheel 224 circumferentially fixed to the screw rod 222 and a transmission wheel 223 for meshing transmission, and the central axis of the terminal transmission wheel 223 of the gear set is connected to a hexagonal column.

[0021] As a further configuration of the above solution, the inner ring of the outer mold sleeve 12 is provided with a limiting sliding groove 121 , and the clamping block 11 on the outer mold body 1 is provided with a limiting sliding block 122 .

[0022] As a further configuration of the above solution, the outer mold sleeve 12 is further provided with a slot 16 and a connecting shaft 17 , and the slot 16 and the connecting shaft 17 are used to cooperate with the centrifuge base 18 for fixing.

[0023] like Figure 1-5The cement pipe forming mold of the utility model shown in the figure, the forming mold of this embodiment includes an outer mold body 1 and an inner mold body 2, wherein the inner mold body 2 includes an inner support block 21 constituting a circular tubular shape and fitting the inner wall of the cement pipe 9 and a support assembly 22 for driving the inner support block 21, the inner support block 21 is configured as two fan-shaped blocks 211 and two semi-ring blocks 212, and the fan-shaped blocks 211 and the semi-ring blocks 212 are spaced and arranged relative to each other in the circumferential direction, the support assembly 22 includes a transmission frame 221, a screw rod 222 and a gear set, the gear set includes a driven wheel 224 circumferentially fixed to the screw rod 222 and a transmission wheel 224 for meshing transmission 23, the central axis of the terminal transmission wheel 223 of the gear set is connected to the hexagonal column. When the inner mold body 2 is in use, the transmission wheel 223 is driven to rotate by rotating the hexagonal column, and the other transmission wheels 223 and the driven wheel 224 meshed with the transmission wheel 223 are meshed and rotated accordingly, so that the screw 222 that rotates circumferentially fixed with the driven wheel 224 rotates accordingly, and the sector block 211 is threadedly matched with the screw 222, so that the sector block 211 that cannot rotate is axially close to or away from the screw 222, wherein the screw 222 rotates in one direction, so the screw 222 threads on the opposite sides of the driven wheel 224 are arranged in opposite directions. In addition, as Figure 4 As shown, the screw 222, the transmission wheel 223 and the driven wheel 224 installed on the transmission frame 221 drive the sector block 211 or the semi-ring block 212 to move, and the semi-ring block 212 and the sector block 211 have a sector-shaped reverse angle, so that when disassembling, it is necessary to first start the screw 222 of the sector block 211 to make them move closer to each other, and then start the screw 222 of the semi-ring block 212 to make both of them detach from the inner wall of the cement pipe 9 to complete the disassembly.

[0024] The outer mold body 1 of this embodiment includes a clamping block 11 and an outer mold sleeve 12 for fixing the clamping block 11, and the outer mold sleeve 12 is provided with a closing portion 13 extending from one end of the outer mold body 1 and the inner mold body 2. The closing portion 13 also extends inward to form a ring-shaped inner clamping portion 14 that matches the inner hole of the inner mold body 2. The other end of the outer mold body 1 and the inner mold body 2 is provided with an upper mold cover 3, and the upper mold cover 3 is bolted to the outer mold sleeve 12 and is provided with a pouring port 32. The inner ring of the outer mold sleeve 12 is provided with a limiting slide groove 121, and the clamping block 11 on the outer mold body 1 is provided with a limiting slider 122.

[0025] Based on the above-mentioned structural setting, the outer mold body 1 of this embodiment forms the outer mold structure of the cement pipe 9 through the clamping block 11 during molding, and after several clamping blocks 11 form a ring shape, the outer mold sleeve 12 is sleeved on the outside thereof, and the clamping block 11 is limited by the outer mold sleeve 12 through the cooperation of the limiting slide groove 121 and the limiting slider 122. In addition, the bottom of the clamping block 11 extends inward to form a horizontal fan-shaped relative structure, thereby fixing its annular diameter size. The function of the outer mold sleeve 12 is to limit the clamping block 11, and to quickly disassemble it by axially detaching when disassembly is required.

[0026] As a further configuration of the above solution, the outer mold sleeve 12 is further provided with a slot 16 and a connecting shaft 17 , and the slot 16 and the connecting shaft 17 are used to cooperate with the centrifuge base 18 for fixing.

[0027] The cement pipe forming mold of the utility model forms a casting cavity through the design of inner and outer mold bodies, and an outer mold sleeve is arranged outside the outer mold body and is retrogradely fastened, while the inner mold body is supported and disassembled by a supporting assembly, so that the staff can conveniently arrange and disassemble it when using it, and the outer mold sleeve is axially disassembled relative to the clamping block, and the hexagonal column is rotated to drive the screw to rotate and control the movement of the sector block, so that the mold can be conveniently assembled and disassembled after casting.

[0028] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A cement pipe forming mold, characterized in that: The invention comprises an outer mold body (1) and an inner mold body (2), wherein the inner mold body (2) comprises an inner support block (21) which forms a circular tubular shape and fits the inner wall of a cement pipe (9), and a support assembly (22) for driving the inner support block (21), wherein the outer mold body (1) comprises a clamping block (11) and an outer mold sleeve (12) for fixing the clamping block (11), wherein the outer mold sleeve (12) is provided with a closing portion (13) extending from one end relative to the outer mold body (1) and the inner mold body (2), wherein the closing portion (13) further extends inward to form an annular inner clamping portion (14) which matches the inner hole of the inner mold body (2), and an upper mold cover (3) is provided at the other end of the outer mold body (1) and the inner mold body (2), wherein the upper mold cover (3) is bolted to the outer mold sleeve (12) and provided with a pouring port (32).

2. A cement pipe forming mold according to claim 1, characterized in that: The inner support blocks (21) are configured as two sector blocks (211) and two semi-ring blocks (212), and the sector blocks (211) and the semi-ring blocks (212) are arranged opposite to each other at intervals in the circumferential direction.

3. A cement pipe forming mold according to claim 2, characterized in that: The support assembly (22) comprises a transmission frame (221), a screw rod (222) and a gear set, wherein the gear set comprises a driven wheel (224) circumferentially fixed to the screw rod (222) and a transmission wheel (223) for meshing transmission, and the central axis of the terminal transmission wheel (223) of the gear set is connected to a hexagonal column.

4. The cement pipe forming mold according to claim 1, characterized in that: The inner ring of the outer mold sleeve (12) is provided with a limiting sliding groove (121), and the clamping block (11) on the outer mold body (1) is provided with a limiting sliding block (122).

5. The cement pipe forming mold according to claim 1, characterized in that: The outer mold sleeve (12) is also provided with a clamping groove (16) and a connecting shaft (17), and the clamping groove (16) and the connecting shaft (17) are used to cooperate with the centrifuge base (18) for fixing.

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