Cement special-shaped pipe forming die

Abstract

The utility model provides a cement special-shaped pipe forming die, which relates to the field of cement pipe processing dies, and comprises a die holder, a special-shaped inner cylinder, an outer cylinder and a positioning component, the special-shaped inner cylinder is fixed on the upper side of the die holder, an electric heating plate is fixed on the inner cavity wall of the special-shaped inner cylinder, and a ventilation plug is arranged on the cylinder wall of the special-shaped inner cylinder. Meanwhile, a guide pipe is inserted into an inner cavity of the special-shaped inner cylinder, a shaft sleeve is connected to the outer wall of the guide pipe, fan blades are connected to the outer wall of the shaft sleeve, a first bevel gear is connected to the lower end of the shaft sleeve, a second bevel gear is meshed with the lower side of the first bevel gear, and a motor is connected to the outer side of the second bevel gear through a driving shaft; the outer cylinder is fixed to the inner side of the positioning assembly, and the lower end of the positioning assembly is connected to the upper side of the die holder through a hydraulic rod. The mold solves the problems that an existing mold for preparing and forming the mud pipe is long in air drying time and poor in effect, and meanwhile cement pipes with various outer diameter sizes cannot be conveniently formed and prepared.

Description

Technical Field

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

[0002] Cement pipe is a pre-set pipe made of cement and steel bars using the centrifugal force of electric poles. Cement pipe making machine, as the name suggests, is a machine for making cement pipes. It is also commonly known as cement pipe making machine and cement pipe making equipment. After searching, the prior art (application number: CN202121802778.6) records "a mold for preparing and forming cement pipes, which can shorten the cooling time and improve the casting efficiency; it includes a base, a motor, a connecting plate, two groups of cylinders, an outer tube, an inner tube, a wind tube and a fan. The bottom end of the base is provided with four groups of legs, the top of the base is provided with a fixing frame, the bottom end of the motor is fixedly connected to the top of the fixing frame, the output end of the motor is provided with a driving shaft, the top of the connecting plate is fixedly connected to the connecting plate, the two groups of cylinders are fixedly installed at the bottom of the connecting plate, the output end of each group of cylinders is provided with a piston rod, both ends of the outer tube are provided with a fixing plate, the two groups of fixing plates are respectively fixedly connected to the bottom ends of the two groups of piston rods, the bottom end of the inner tube is fixedly connected to the top of the base, a plurality of groups of ventilation plugs are provided in the circumferential outer wall of the inner tube, the wind tube is located in the inner tube, a plurality of groups of air outlet pipes are provided on the wind tube, and the plurality of air outlet pipes are respectively connected to the plurality of ventilation plugs, the top of the fan is fixedly connected to the bottom end of the base, and the output end of the fan is provided with an air guide pipe."

[0003] However, although the cement pipe preparation and forming molds in the prior art can achieve a rapid air-drying effect, there are still some shortcomings: the existing cement pipe preparation and forming molds can only achieve a simple blowing effect through a fan, and cement contains a large amount of moisture. Air-drying through natural wind from the outside will result in a long time and poor air-drying effect; secondly, the existing cement pipe molds are not convenient for flexible replacement of outer cylinders of different sizes, which makes it inconvenient to prepare cement pipes of various outer diameters. Utility Model Content

[0004] In order to overcome the defects of the prior art, a cement special-shaped pipe forming mold is provided to solve the defects of the existing mud pipe preparation and forming molds, such as long air-drying time and poor effect, and the problem that it is not convenient to prepare cement pipes with various outer diameters.

[0005] To achieve the above-mentioned purpose, a cement special-shaped pipe forming mold is provided, comprising: a mold base, a special-shaped inner cylinder, an outer cylinder and a positioning assembly, the special-shaped inner cylinder is fixed on the upper side of the mold base, and the inner cavity wall of the special-shaped inner cylinder is fixed with an electric heating plate, and the cylinder wall of the special-shaped inner cylinder is provided with a ventilation plug, and a catheter is inserted into the inner cavity of the special-shaped inner cylinder, the outer wall of the catheter is connected with a shaft sleeve, and the outer wall of the shaft sleeve is connected with a fan blade, and a first bevel gear is connected to the lower end of the shaft sleeve, the lower side of the first bevel gear is meshed with a second bevel gear, and the outer side of the second bevel gear is connected to a motor through a driving shaft, the outer cylinder is fixed to the inner side of the positioning assembly, and the lower end of the positioning assembly is connected to the upper side of the mold base through a hydraulic rod, and the outer cylinder is placed on the upper side of the special-shaped inner cylinder, the positioning assembly comprises a lifting ring, and the outer wall of the lifting ring is fixed with an electric push rod, and the inner end of the electric push rod is connected with a clamping block.

[0006] Furthermore, the conduit vertically penetrates the mold base, and a wire is connected inside the conduit, and both ends of the wire are respectively connected to the electric heating plate and a temperature controller installed on the lower side of the mold base.

[0007] Furthermore, an air inlet is provided at the bottom of the special-shaped inner cylinder, and the air inlet is connected to the outside in a horizontal direction, and an air filter is provided in the air inlet.

[0008] Furthermore, the shaft sleeve and the first bevel gear are both rotatably connected to the outer wall of the conduit, and the height of the fan blades is lower than the ventilation plug provided on the wall of the special-shaped inner cylinder.

[0009] Furthermore, the motor is fixed to the inner bottom of the special-shaped inner cylinder, and the outer side of the driving shaft is connected to a support plate, while one end of the driving shaft is inserted and fixed in the shaft hole of the second bevel gear.

[0010] Furthermore, the electric push rods are provided with four groups arranged equidistantly around the circumferential direction of the lifting ring, and an arc-shaped end surface is provided on the inner side of the clamping block, and an electromagnet is installed in the clamping block, and the electromagnet is connected to an external power supply.

[0011] Furthermore, the special-shaped inner cylinder is configured as a hexagonal column structure with a hollow interior, and when the outer cylinder is sleeved on the outside of the special-shaped inner cylinder, there is a cavity gap between the outer cylinder and the special-shaped inner cylinder.

[0012] The beneficial effects of the utility model are:

[0013] 1. When in use, place the required outer cylinder inside the lifting ring, then start the four electric push rods synchronously, and energize the electromagnet inside the clamping block, so that the electric push rods drive the clamping block to move toward the center of the lifting ring, thereby clamping and fixing the inner outer cylinder. Through the above method, outer cylinders with different outer diameters can be replaced, which is suitable for the molding preparation of cement special-shaped pipes with different outer diameters;

[0014] 2. During preparation, the positioning assembly is driven by a hydraulic rod to drive the outer cylinder to move downward so that it is sleeved on the outside of the special-shaped inner cylinder, and then cement is poured from the upper side of the outer cylinder to the cavity between the outer cylinder and the special-shaped inner cylinder. After pouring, the temperature controller and the motor are started. At this time, the temperature controller energizes and heats the electric heating plate through the wire inside the conduit, so that the inner wall of the special-shaped inner cylinder is heated, thereby facilitating the evaporation of water in the cement. At the same time, the motor drives the shaft sleeve to rotate through the drive shaft, the second bevel gear and the first bevel gear, and drives the fan blades to rotate at the same time, and then draws the external natural wind into the inner cavity of the special-shaped inner cylinder through the air inlet. With the heating effect of the electric heating plate, the internal hot air is blown into the poured cement material through the ventilation plug, so that the air drying time is shortened, the air drying effect is improved, and the curing efficiency of the cement is accelerated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of a top-down cross-sectional structure of a positioning assembly according to an embodiment of the utility model.

[0017] Figure 3 It is a schematic diagram of the top view of the special-shaped inner cylinder of an embodiment of the utility model.

[0018] Figure 4 For the utility model embodiment Figure 1 Schematic diagram of the structure at point A in the middle.

[0019] In the figure: 1. mold base; 2. special-shaped inner cylinder; 21. ventilation plug; 22. electric heating plate; 23. guide tube; 231. bushing; 232. fan blade; 233. first bevel gear; 24. air inlet; 25. second bevel gear; 26. drive shaft; 27. motor; 3. outer cylinder; 4. positioning assembly; 41. lifting ring; 42. electric push rod; 43. clamping block; 44. electromagnet; 5. hydraulic rod; 6. temperature controller. DETAILED DESCRIPTION

[0020] Reference Figures 1 to 4 As shown, the utility model provides a cement special-shaped pipe forming mold, comprising: a mold base 1, a special-shaped inner tube 2, an outer tube 3 and a positioning component 4.

[0021] Specifically, the special-shaped inner cylinder 2 is set to a hexagonal prism structure with a hollow interior, and when the outer cylinder 3 is sleeved on the outside of the special-shaped inner cylinder 2, there is a cavity gap between the outer cylinder 3 and the special-shaped inner cylinder 2, the special-shaped inner cylinder 2 is fixed on the upper side of the mold base 1, and the inner cavity wall of the special-shaped inner cylinder 2 is fixed with an electric heating plate 22, and the cylinder wall of the special-shaped inner cylinder 2 is provided with a ventilation plug 21, and at the same time, a catheter 23 is inserted into the inner cavity of the special-shaped inner cylinder 2, the outer wall of the catheter 23 is connected to a sleeve 231, and the outer wall of the sleeve 231 is connected to a fan blade 232, and a first bevel gear 233 is connected to the lower end of the sleeve 231, and a second bevel gear 233 is meshed with the lower side of the first bevel gear 233. shaped gear 25, and the outer side of the second bevel gear 25 is connected to the motor 27 through the driving shaft 26, the outer cylinder 3 is fixed on the inner side of the positioning component 4, and the lower end of the positioning component 4 is connected to the upper side of the mold base 1 through the hydraulic rod 5, and the outer cylinder 3 is placed on the upper side of the special-shaped inner cylinder 2, the positioning component 4 includes a lifting ring 41, and the outer wall of the lifting ring 41 is fixed with an electric push rod 42, and the inner end of the electric push rod 42 is connected with a clamping block 43, the electric push rod 42 is provided with four groups of equidistantly arranged in the circumferential direction of the lifting ring 41, and the inner side of the clamping block 43 is provided with an arc-shaped end face, and an electromagnet 44 is installed in the clamping block 43, and the electromagnet 44 is connected to the external power supply.

[0022] In this embodiment, the mold base 1, the special-shaped inner tube 2, the outer tube 3 and the positioning assembly 4 constitute the main structure of the cement special-shaped pipe forming mold involved in this application.

[0023] The cross-sectional shape of the special-shaped inner cylinder 2 can be set to other non-circular cross-sectional special-shaped shapes according to production requirements.

[0024] The top of the special-shaped inner tube 2 is set as a closed end structure, and when pouring cement, the height of the cement does not exceed the top of the special-shaped inner tube 2 to form a cement tubular structure.

[0025] It should be noted that the special-shaped inner tube 2 and the outer tube 3 are both made of cast iron, wherein the clamping block 43 is convenient for strengthening the clamping and fixing effect of the outer tube 3 under the adsorption action of the electromagnet 44 .

[0026] In this embodiment, before pouring cement in the cavity between the outer cylinder 3 and the special-shaped inner cylinder 2 , a mold release agent needs to be sprayed in the cavity to facilitate mold opening of the outer cylinder 3 .

[0027] In this embodiment, the ventilation plug 21 has the same structure and function as the ventilation plug involved in the background technology reference document.

[0028] Specifically, the conduit 23 vertically penetrates the mold base 1, and a wire is connected inside the conduit 23, and the two ends of the wire are respectively connected to the electric heating plate 22 and the temperature controller 6 installed on the lower side of the mold base 1. An air inlet 24 is opened at the bottom of the special-shaped inner cylinder 2, and the air inlet 24 is horizontally conductive to the outside, and an air filter is provided in the air inlet 24. The sleeve 231 and the first bevel gear 233 are both rotatably connected to the outer wall of the conduit 23, and the height of the fan blade 232 is lower than the ventilation plug 21 provided on the wall of the special-shaped inner cylinder 2. The motor 27 is fixed to the inner bottom of the special-shaped inner cylinder 2, and a support plate is connected to the outer side of the drive shaft 26, and one end of the drive shaft 26 is plugged and fixed in the shaft hole of the second bevel gear 25.

[0029] In this embodiment, the air inlet 24 with the filter screen takes in air from the outside and will not be blocked by the mold base 1 at the bottom.

[0030] As a preferred embodiment, the fan blades 232 are arranged to facilitate the removal of water vapor evaporated by the electric heating plate 22 from the cement, thereby further improving the efficiency of cement curing by coordinating the effect of thermal evaporation on the basis of air drying.

[0031] When in use, the positioning assembly is driven by the hydraulic rod to drive the outer cylinder to move downward so that it is sleeved on the outside of the special-shaped inner cylinder, and then cement is poured from the upper side of the outer cylinder to the cavity between the outer cylinder and the special-shaped inner cylinder. After the pouring is completed, the temperature controller and the motor are started. At this time, the temperature controller energizes and heats the electric heating plate through the wire inside the conduit, so that the inner wall of the special-shaped inner cylinder is heated, thereby facilitating the evaporation of water in the cement. At the same time, the motor drives the shaft sleeve to rotate through the driving shaft, the second bevel gear and the first bevel gear, and drives the fan blades to rotate at the same time, and then draws the external natural wind into the inner cavity of the special-shaped inner cylinder through the air inlet. With the heating effect of the electric heating plate, the internal hot air is blown to the poured cement material through the ventilation plug, so that the air drying time is shortened, the air drying effect is improved, and the curing and molding efficiency of the cement is accelerated.

[0032] The cement special-shaped pipe forming mold of the utility model can effectively solve the defects of the existing cement pipe preparation and forming molds, such as long air-drying time and poor effect, and the problem that it is not convenient to prepare cement pipes with various outer diameters. It shortens the air-drying time of cement, enhances the air-drying effect, and further improves the preparation efficiency on the basis of the existing cement special-shaped pipe forming mold technology. At the same time, it is convenient to replace outer cylinders with different outer diameters to realize the preparation of special-shaped cements of different sizes.

Claims

1. A cement special-shaped pipe forming mold, comprising: A mold base (1), a special-shaped inner cylinder (2), an outer cylinder (3) and a positioning assembly (4), characterized in that: the special-shaped inner cylinder (2) is fixed on the upper side of the mold base (1), and an electric heating plate (22) is fixed to the inner cavity wall of the special-shaped inner cylinder (2), and a ventilation plug (21) is provided on the cylinder wall of the special-shaped inner cylinder (2), and a conduit (23) is inserted into the inner cavity of the special-shaped inner cylinder (2), the outer wall of the conduit (23) is connected to a shaft sleeve (231), and the outer wall of the shaft sleeve (231) is connected to a fan blade (232), and the lower end of the shaft sleeve (231) is connected to a first bevel gear (233), The lower side of the first bevel gear (233) is meshed with a second bevel gear (25), and the outer side of the second bevel gear (25) is connected to a motor (27) via a drive shaft (26); the outer cylinder (3) is fixed to the inner side of the positioning assembly (4), and the lower end of the positioning assembly (4) is connected to the upper side of the mold base (1) via a hydraulic rod (5); the outer cylinder (3) is placed on the upper side of the special-shaped inner cylinder (2); the positioning assembly (4) comprises a lifting ring (41), and an electric push rod (42) is fixed to the outer wall of the lifting ring (41), and a clamping block (43) is connected to the inner end of the electric push rod (42).

2. A cement special-shaped pipe forming mold according to claim 1, characterized in that: The conduit (23) vertically penetrates the mold base (1), and a wire is connected inside the conduit (23), while two ends of the wire are respectively connected to the electric heating plate (22) and a temperature controller (6) installed on the lower side of the mold base (1).

3. A cement special-shaped pipe forming mold according to claim 1, characterized in that: An air inlet (24) is provided at the bottom of the special-shaped inner cylinder (2), and the air inlet (24) is connected to the outside in a horizontal direction, and an air filter is provided in the air inlet (24).

4. A cement special-shaped pipe forming mold according to claim 1, characterized in that: The shaft sleeve (231) and the first bevel gear (233) are both rotatably connected to the outer wall of the conduit (23), and the height of the fan blade (232) is lower than the ventilation plug (21) provided on the wall of the special-shaped inner cylinder (2).

5. The cement special-shaped pipe forming mold according to claim 1, characterized in that: The motor (27) is fixed to the inner bottom of the special-shaped inner cylinder (2), and a support plate is connected to the outer side of the drive shaft (26), while one end of the drive shaft (26) is inserted and fixed in the shaft hole of the second bevel gear (25).

6. A cement special-shaped pipe forming mold according to claim 1, characterized in that: The electric push rods (42) are provided with four groups arranged equidistantly in the circumferential direction of the lifting ring (41), and an arc-shaped end surface is provided on the inner side of the clamping block (43). An electromagnet (44) is installed in the clamping block (43), and the electromagnet (44) is connected to an external power supply.

7. A cement special-shaped pipe forming mold according to claim 1, characterized in that: The special-shaped inner cylinder (2) is configured as a hexagonal column structure with a hollow interior, and when the outer cylinder (3) is sleeved on the outside of the special-shaped inner cylinder (2), a cavity gap exists between the outer cylinder (3) and the special-shaped inner cylinder (2).

Images