Fire hydrant mold core conveyor

Abstract

The utility model relates to the technical field of fire hydrant production equipment, in particular to a fire hydrant core conveyor which comprises a rack, a lifting device arranged on the rack, a driving roller arranged on the rack through a first driving device, a transmission roller arranged on the rack and a composite conveying belt arranged between the driving roller and the transmission roller. The composite conveying belt comprises a transmission belt arranged between the driving roller and the transmission roller, a plurality of high-temperature-resistant silica gel foam blocks arranged on the transmission belt and a Teflon belt arranged on the high-temperature-resistant silica gel foam blocks through a guiding and positioning device, and the high-temperature-resistant silica gel foam blocks are in a strip-shaped rib shape and are evenly and intermittently arranged in the conveying direction.

Description

Technical Field

[0001] This utility model relates to the technical field of fire hydrant production equipment, and in particular to a fire hydrant core conveyor. Background Technology

[0002] Casting refers to the process of melting solid metal into liquid and pouring it into a mold of a specific shape, allowing it to solidify and take shape. In the production of fire hydrant casting, the core temperature can reach 180~350°C. In the past, the core was usually delivered manually by holding a wooden board. However, this could easily damage the surface of the core, and the high temperature of the core parts could also be harmful to the human body.

[0003] Therefore, conveyors with lifting functions are generally used for conveying. However, ordinary conveyor belts are prone to rapid aging and deformation at high temperatures, and the impact when the core is dropped will also accelerate the local wear of the conveyor belt, making it necessary to replace the conveyor belt frequently. Utility Model Content

[0004] Therefore, in view of the above problems, this utility model proposes a fire hydrant core conveyor.

[0005] To achieve the above objectives, the technical solution of this utility model is to provide a fire hydrant core conveyor, including a frame, a lifting device mounted on the frame, a drive roller mounted on the frame via a first drive device, a transmission roller mounted on the frame, and a composite conveyor belt between the drive roller and the transmission roller. The composite conveyor belt includes: a transmission belt between the drive roller and the transmission roller, several high-temperature resistant silicone foam blocks mounted on the transmission belt, and a Teflon belt mounted on the high-temperature resistant silicone foam blocks via a guiding and positioning device. The high-temperature resistant silicone foam blocks are strip-shaped ribs and are evenly and intermittently arranged along the conveying direction.

[0006] The guiding and positioning device includes: several guiding through holes on a high-temperature resistant silicone foam block, and several guide posts on a Teflon strip that match the guiding through holes, wherein the depth of the guiding through holes is greater than the height of the guide posts.

[0007] A further improvement is that a high-temperature resistant silicone block is provided on the transmission belt inside the guide hole to prevent the high-temperature resistant silicone foam block from being excessively compressed.

[0008] A further improvement is that the Teflon strip is also provided with several vent holes.

[0009] A further improvement is that the upper surface of the Teflon belt is provided with several anti-slip ribs evenly arranged along the conveying direction, and the cross-section of the anti-slip ribs is semi-circular or trapezoidal.

[0010] A further improvement is that several pressure rollers are provided on the frame between the upper and lower sides of the conveyor belt.

[0011] A further improvement is that anti-deviation retaining rings are provided on both sides of the pressure roller to prevent the conveyor belt from deviating.

[0012] A further improvement is that the first driving device includes a first rotary driving member mounted on a frame, wherein the rotary shaft of the first rotary driving member is connected to a drive roller.

[0013] A further improvement is made to the lifting device, which includes: a base, two first support plates on both sides of the base, two second support plates on both sides of the bottom of the frame, a first sliding groove on the first support plate, a second sliding groove on the second support plate, a first hinge rod with one end hinged to the first support plate and the other end slidably disposed on the second sliding groove, and a second hinge rod with one end hinged to the second support plate and the other end slidably disposed on the first sliding groove, wherein the second hinge rod is hinged to the first hinge rod. The base is also provided with a second driving device for driving the first hinge rod and the second hinge rod to move, and the bottom of the base is provided with four feet.

[0014] A further improvement is that the second driving device includes: a second rotary driving member disposed on the base, a connecting plate disposed between the second hinge rods, a threaded sleeve disposed on the connecting plate, and a threaded rod disposed on the rotating shaft of the second rotary driving member for cooperating with the threaded sleeve. The base is also provided with a support seat, and the support seat is provided with a bearing. The inner ring of the bearing is fixedly connected to the threaded rod.

[0015] The advantages and beneficial effects of this utility model are as follows:

[0016] With its simple structure and convenient use, this utility model achieves integrated material drop buffering and thermal isolation through a composite conveyor belt composed of a transmission belt, intermittently arranged high-temperature resistant silicone foam blocks in the form of strip ribs, and Teflon belt. This effectively prevents damage to the core and protects the whole machine, improves the overall service life of the conveyor belt, and enhances the automation level and product quality of the high-temperature fire hydrant core receiving and delivery process. Attached Figure Description

[0017] Figure 1 This is a side view schematic diagram of a fire hydrant core conveyor according to the present invention;

[0018] Figure 2 This is a cross-sectional schematic diagram of the composite conveyor belt of a fire hydrant core conveyor according to this utility model;

[0019] Figure 3 This is a schematic diagram of the Teflon belt connection for a fire hydrant core conveyor according to this utility model;

[0020] In the diagram: 1. Frame; 2. Drive roller; 3. Transmission roller; 4. Transmission belt; 5. High-temperature resistant silicone foam block; 6. Teflon belt; 7. Guide through hole; 8. Guide post; 9. Connecting buckle; 10. Connecting pin; 11. High-temperature resistant silicone block; 12. Vent hole; 13. Anti-slip rib; 14. Pressure roller; 15. Anti-deviation retaining ring; 16. Base; 17. First support plate; 18. Second support plate; 19. First sliding groove; 20. Second sliding groove; 21. First hinge rod; 22. Second hinge rod; 23. Standing foot; 24. Second rotary drive component; 25. Connecting plate; 26. Threaded sleeve; 27. Support seat; 28. Threaded rod. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0022] like Figures 1-3 As shown, a fire hydrant core conveyor includes a frame 1, a lifting device mounted on the frame 1, a drive roller 2 mounted on the frame 1 via a first drive device, a transmission roller 3 mounted on the frame 1, and a composite conveyor belt positioned between the drive roller 2 and the transmission roller 3. The composite conveyor belt includes a transmission belt 4 positioned between the drive roller 2 and the transmission roller 3, several high-temperature resistant silicone foam blocks 5 positioned on the transmission belt 4, and a Teflon belt 6 positioned on the high-temperature resistant silicone foam blocks 5 via a guide and positioning device. The high-temperature resistant silicone foam blocks 5 are strip-shaped ribs and are evenly and intermittently arranged along the conveying direction.

[0023] The thickness of the high-temperature resistant silicone foam block 5 is 8~10mm;

[0024] To achieve elastic buffering and heat insulation protection during the conveying process, the composite conveyor belt consists of a transmission belt 4, high-temperature resistant silicone foam blocks 5 arranged in a strip-like rib pattern, and a Teflon belt 6. When the core is dropped, the high-temperature resistant silicone foam blocks 5 are compressed to absorb the impact and prevent damage to the core. The suspended area between the high-temperature resistant silicone foam blocks 5 forms an air insulation cavity to block heat conduction downward.

[0025] Furthermore, as an optional implementation, in order to prevent the Teflon strip 6 from sliding horizontally relative to the high-temperature resistant silicone foam block 5 and to facilitate the replacement of the Teflon strip 6, the guiding and positioning device includes: a plurality of guiding through holes 7 provided on the high-temperature resistant silicone foam block 5, and a plurality of guide posts 8 provided on the Teflon strip 6 that match the guiding through holes 7, wherein the depth of the guiding through holes 7 is greater than the height of the guide posts 8.

[0026] The two ends of the Teflon strip 6 are respectively provided with a number of matching buckles 9, and a connecting pin 10 is inserted in the buckle 9 to make the Teflon strip 6 into a ring shape.

[0027] The depth of the guide hole 7 is greater than the height of the guide post 8, so that the guide post 8 can constrain the Teflon strip 6, while leaving compression space in the vertical direction to ensure that the buffering function is not affected.

[0028] Furthermore, as an optional implementation, in order to prevent the high-temperature resistant silicone foam block 5 from being permanently deformed due to repeated heavy pressure, a high-temperature resistant silicone block 11 is provided on the transmission belt 4 in the guide hole 7 to prevent the high-temperature resistant silicone foam block 5 from being squeezed excessively.

[0029] The high-temperature resistant silicone block 11 at the bottom of the guide hole 7 provides additional reaction force when the high-temperature resistant silicone foam block 5 is over-compressed, limiting the maximum compression.

[0030] Furthermore, as an optional implementation, in order to expel air and prevent the air cushion effect during core blanking, the Teflon tape 6 is also provided with a number of ventilation holes 12.

[0031] The vent holes 12 on the Teflon tape 6 allow air to escape during core blanking, preventing the core from bouncing due to the air cushion effect. At the same time, it reduces the contact area to prevent sticking and allows debris to fall off, keeping the tape surface clean.

[0032] Furthermore, as an optional implementation, in order to prevent the cylindrical core from rolling or shifting during the conveying process, the upper surface of the Teflon belt 6 is provided with several anti-slip ribs 13 evenly arranged along the conveying direction, and the cross section of the anti-slip ribs 13 is semi-circular or trapezoidal.

[0033] The anti-slip rib 13 is a Teflon anti-slip rib 13;

[0034] The height of the anti-slip rib 13 is 2-5mm;

[0035] The anti-slip ribs 13 on the upper surface of the Teflon belt 6 increase friction and ensure stable conveying posture.

[0036] Furthermore, as an optional implementation, in order to reduce the sagging deformation of the conveyor belt under the gravity of the core, a number of pressure rollers 14 are provided on the frame 1 between the upper and lower sides of the conveyor belt.

[0037] The pressure roller 14 supports the load-bearing section of the conveyor belt from below, keeping the conveyor belt flat and reducing running resistance.

[0038] Furthermore, as an optional implementation, in order to prevent the conveyor belt from running laterally off-center, anti-deviation retaining rings 15 are also provided on both sides of the pressure roller 14 to prevent the conveyor belt from deviating.

[0039] Anti-deviation retaining rings 15 on both sides of the pressure roller 14 restrict the displacement of the conveyor belt edge.

[0040] Furthermore, as an optional implementation, in order to simplify the drive structure and improve transmission efficiency, the first drive device includes: a first rotary drive member (not shown in the figure) disposed on the frame 1, and the rotary shaft of the first rotary drive member is connected to the drive roller 2;

[0041] The first rotary drive component is a servo motor;

[0042] The rotating shaft of the first rotary drive component is directly connected to the drive roller, using a direct drive method, resulting in a compact structure.

[0043] Furthermore, as an optional implementation, in order to achieve smooth lifting of the conveyor to adapt to different mold heights, the lifting device includes: a base 16, two first support plates 17 on both sides of the base 16, two second support plates 18 on both sides of the bottom of the frame 1, a first sliding groove 19 on the first support plate 17, a second sliding groove 20 on the second support plate 18, a first hinge rod 21 with one end hinged to the first support plate 17 and the other end slidably disposed on the second sliding groove 20, and a second hinge rod 22 with one end hinged to the second support plate 18 and the other end slidably disposed on the first sliding groove 19, and the second hinge rod 22 is hinged to the first hinge rod 21. The base 16 is also provided with a second driving device for driving the first hinge rod 21 and the second hinge rod 22 to move. The bottom of the base 16 is provided with four feet 23.

[0044] The horizontal thrust is converted into vertical lifting motion through the cross-cooperation of the hinge rods, and the four feet 23 ensure the stability of the whole machine.

[0045] Furthermore, as an optional implementation, in order to precisely control the lifting height and prevent accidental descent, the second drive device includes: a second rotary drive member 24 disposed on the base 16, a connecting plate 25 disposed between the second hinge rods 22, a threaded sleeve 26 disposed on the connecting plate 25, and a threaded rod 28 disposed on the rotation shaft of the second rotary drive member 24 for cooperating with the threaded sleeve 26. The base 16 is also provided with a support seat 27, and the support seat 27 is provided with a bearing. The inner ring of the bearing (not shown in the figure) is fixedly connected to the threaded rod 28.

[0046] The second rotary drive component 24 is a servo motor;

[0047] The second rotary drive component 24 drives the threaded rod to rotate, which in turn pushes the connecting plate 25 to move through the threaded sleeve 26. Safety locking and height adjustment are achieved by using the thread self-locking.

[0048] Working principle: During operation, the lifting device raises and lowers the entire conveyor to the receiving position according to the height of the mold. The core falls directly from the core-making machine onto the Teflon belt 6. At the moment of falling, the air vents 12 on the Teflon belt 6 quickly expel the air between the core and the belt surface, avoiding the air cushion effect that causes the core to bounce. At the same time, the high-temperature resistant silicone foam blocks 5, which are intermittently arranged in strip-shaped ribs, are compressed to absorb the impact energy, achieving a soft landing of the core. The suspended area between the high-temperature resistant silicone foam blocks 5 forms an air insulation cavity to prevent heat from being conducted downward.

[0049] The Teflon strip 6 is engaged with the guide hole 7 on the silicone foam block through the guide post 8, which not only prevents the Teflon strip 6 from shifting but also leaves vertical compression space. The high temperature resistant silicone block 11 in the guide hole 7 provides additional reaction force when the foam block is over-compressed, limiting the amount of compression and extending the life of the foam block.

[0050] After the core falls onto the Teflon strip 6, the anti-slip ribs 13 on the upper surface increase the friction and prevent the cylindrical core from rolling or shifting.

[0051] The servo motor of the first drive unit is directly connected to the drive roller 2, which drives the composite conveyor belt to run. The pressure roller 14 supports the conveyor belt from below to reduce sagging deformation. The anti-deviation retaining rings 15 on both sides of the pressure roller 14 restrict the lateral deviation of the conveyor belt.

[0052] When the core is delivered to the output end, the lifting device activates again to adjust the height so that the core is precisely aligned with the conveyor on the production line. The servo motor of the second drive device drives the threaded rod to rotate, which pushes the connecting plate 25 to move through the threaded sleeve 26. The threaded self-locking mechanism enables precise control and safe locking of the lifting height, thus completing the smooth delivery of the core.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementations of this utility model. While the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fire hydrant core conveyor, comprising a frame, a lifting device mounted on the frame, a drive roller mounted on the frame via a first drive device, a transmission roller mounted on the frame, and a composite conveyor belt disposed between the drive roller and the transmission roller, characterized in that: The composite conveyor belt includes: a transmission belt located between the drive roller and the transmission roller, several high-temperature resistant silicone foam blocks located on the transmission belt, and a Teflon belt located on the high-temperature resistant silicone foam blocks via a guiding and positioning device. The high-temperature resistant silicone foam blocks are strip-shaped ribs and are evenly and intermittently arranged along the conveying direction. The guiding and positioning device includes: several guiding through holes on a high-temperature resistant silicone foam block, and several guide posts on a Teflon strip that match the guiding through holes, wherein the depth of the guiding through holes is greater than the height of the guide posts.

2. The fire hydrant core conveyor according to claim 1, characterized in that: The transmission belt is equipped with a high-temperature resistant silicone block inside the guide hole to prevent the high-temperature resistant silicone foam block from being squeezed excessively.

3. The fire hydrant core conveyor according to claim 1, characterized in that: The Teflon strip is also provided with several ventilation holes.

4. A fire hydrant core conveyor according to claim 1, characterized in that: The upper surface of the Teflon belt is provided with several anti-slip ribs evenly arranged along the conveying direction, and the cross-section of the anti-slip ribs is semi-circular or trapezoidal.

5. A fire hydrant core conveyor according to claim 1, characterized in that: Several pressure rollers are installed on the frame between the upper and lower sides of the conveyor belt.

6. A fire hydrant core conveyor according to claim 5, characterized in that: The pressure roller is also provided with anti-deviation retaining rings on both sides to prevent the conveyor belt from deviating.

7. A fire hydrant core conveyor according to claim 1, characterized in that: The first driving device includes: a first rotary driving member disposed on the frame, wherein the rotary shaft of the first rotary driving member is connected to a drive roller.

8. A fire hydrant core conveyor according to claim 1, characterized in that: The lifting device includes: a base, two first support plates on both sides of the base, two second support plates on both sides of the bottom of the frame, a first sliding groove on the first support plate, a second sliding groove on the second support plate, a first hinge rod with one end hinged to the first support plate and the other end slidably disposed on the second sliding groove, and a second hinge rod with one end hinged to the second support plate and the other end slidably disposed on the first sliding groove, wherein the second hinge rod is hinged to the first hinge rod. The base is also provided with a second driving device for driving the first hinge rod and the second hinge rod to move. The bottom of the base is provided with four feet.

9. A fire hydrant core conveyor according to claim 8, characterized in that: The second driving device includes: a second rotary driving member disposed on the base, a connecting plate disposed between the second hinge rods, a threaded sleeve disposed on the connecting plate, and a threaded rod disposed on the rotating shaft of the second rotary driving member for cooperating with the threaded sleeve. The base is also provided with a support seat, and the support seat is provided with a bearing. The inner ring of the bearing is fixedly connected to the threaded rod.

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