Valve shell dewaxing and loading device

Abstract

The utility model provides a kind of valve formwork defraxing loading device, including the mobile frame being cooperated with heating furnace, the left and right vertical plate lower surface of mobile frame is equipped with multiple guide wheels at equal distance, the upper surface of mobile frame is all equipped with support column around, multiple threaded holes are equidistantly arranged on the support column, multiple support sleeves are equidistantly set on the support column, the support sleeve is correspondingly set by screw with the threaded hole, support frame is connected between the support sleeve around, the support frame is provided with the placing net plate for placing valve formwork;The utility model can realize improving loading efficiency, ensure formwork positioning stability.

Description

Technical Field

[0001] This utility model relates to, in particular, a valve mold shell dewaxing and feeding device. Background Technology

[0002] In precision casting, valve mold shells, as wax mold housings, require high-temperature dewaxing. Traditionally, loading relies on manual handling or simple trolleys to transport the mold shells into the heating furnace. This method has several drawbacks: First, manually placing each mold shell individually is inefficient and unsuitable for modern mass production. Second, manual placement makes precise positioning difficult, leading to disordered arrangement within the furnace, affecting hot air circulation, causing uneven dewaxing, and in severe cases, even mold shell tipping over. Third, operators must work for extended periods in the high-temperature furnace environment, resulting in high labor intensity and serious safety hazards, easily leading to burns and other workplace injuries. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to provide a valve mold shell dewaxing and feeding device that can improve feeding efficiency and ensure mold shell positioning stability.

[0004] This utility model is implemented using the following method: a valve mold shell dewaxing and feeding device, comprising a movable frame that cooperates with the heating furnace, wherein multiple guide wheels are equally spaced on the lower surface of the left and right vertical plates of the movable frame, and support columns are provided around the upper surface of the movable frame, wherein multiple threaded holes are equally spaced on the support columns, and multiple support sleeves are equally spaced on the support columns, wherein the support sleeves are screwed to correspond to the threaded holes, and a support frame is connected between the support sleeves around the perimeter, wherein a placement mesh plate for placing the valve mold shell is provided inside the support frame.

[0005] Furthermore, a guardrail is provided on the upper surface of the support frame.

[0006] Furthermore, guide rail grooves corresponding to the guide wheels are provided at both ends of the bottom surface of the heating furnace.

[0007] Furthermore, a U-shaped support frame is hinged to the front surface of the movable frame via a pivot, and movable wheels are provided on the lower surfaces of the two vertical rods of the U-shaped support frame. A push-pull rod is provided between the two vertical rods of the U-shaped support frame.

[0008] The beneficial effects of this utility model are as follows: This utility model achieves stable movement of the device in the heating furnace by cooperating with the movable frame and guide wheels, and achieves stable layered placement of the mold shell by using the adjustable height support sleeve and the placement mesh plate. It solves the problems of low efficiency, unstable positioning and great safety hazards of traditional manual feeding, and has the advantages of improving feeding efficiency, ensuring the stability of mold shell positioning and reducing operational safety risks. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the usage state of this utility model. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Please see Figure 1 and Figure 2 As shown, this utility model provides an embodiment: a valve mold shell dewaxing and feeding device, including a movable frame 1 that cooperates with the heating furnace. Multiple guide wheels 11 are evenly arranged on the lower surface of the left and right vertical plates of the movable frame 1. Support columns 2 are arranged around the upper surface of the movable frame 1. Multiple threaded holes 21 are evenly opened on the support columns 2. Multiple support sleeves 22 are evenly fitted on the support columns 2. The support sleeves 22 are correspondingly set with the threaded holes 21 by screws 23. A support frame 3 is connected between the support sleeves 22 around the perimeter. A placement mesh plate 4 for placing valve mold shells is arranged inside the support frame 3.

[0013] Among them, the movable frame 1 refers to the metal skeleton structure that matches the internal space of the heating furnace. Specifically, it can be made of rectangular steel pipes welded together to support the support columns and guide wheels, ensuring that the overall structure moves stably inside the furnace.

[0014] The guide wheel 11 refers to the rolling component installed at the bottom of the frame. Specifically, it can be a nylon wheel with bearings that rolls along a preset track inside the heating furnace to achieve precise positioning of the moving frame.

[0015] Support column 2 refers to the vertical column fixed on the movable frame. Specifically, it can be made of square steel with threaded holes, which is connected to the support sleeve through the threaded holes to provide a height adjustment base for the support frame.

[0016] The support sleeve 22 refers to the liftable component sleeved on the support column. Specifically, it can be a metal tube with an inner diameter slightly larger than the outer diameter of the support column, which is fixed to the threaded hole of the support column by screws to realize the height adjustment of the support frame.

[0017] Support frame 3 refers to the rigid structure that connects the surrounding support sleeves. Specifically, it can be made of angle steel welded into a grid shape to support the mesh plate and distribute the load.

[0018] The placement of the mesh plate 4 refers to the load-bearing plane set within the support frame. Specifically, it can be a perforated steel plate or a metal wire mesh, allowing hot air to penetrate and form uniform support for the valve mold shell.

[0019] Specifically, the movable frame moves to a predetermined position along the guide rail groove inside the heating furnace via bottom guide wheels. The support sleeve is adjusted to the corresponding height according to the mold shell height requirements along the threaded holes of the support column and then locked. The support frame forms a stable platform through the surrounding support sleeves. After placing the mesh plate to support multiple valve mold shells, the entire frame is sent into the heating furnace. The guide wheels and guide rail grooves work together to ensure precise movement path. The multi-stage adjustment function of the support sleeve adapts to the stacking requirements of mold shells of different specifications. The mesh plate structure promotes hot air circulation while ensuring load-bearing capacity.

[0020] Compared to existing technologies, traditional manual handling requires operators to repeatedly enter and exit high-temperature environments. This solution, however, achieves batch loading and positioning through a moving frame, allowing multiple mold shells to be loaded in a single operation. Traditional trolleys lack height adjustment, making stacked mold shells prone to tipping over. This solution achieves precise layer height control through the cooperation of support sleeves and threaded holes, preventing mold shells from squeezing against each other. Traditional methods rely on manual visual estimation of placement; this solution eliminates positioning deviations and improves dewaxing uniformity through the mechanical cooperation of guide wheels and guide rails.

[0021] Through the above technical solutions, this application achieves batch and rapid feeding of valve mold shells, reducing the number of manual operations and high temperature exposure time; the combined design of the support frame and the placement mesh plate ensures that the mold shells are placed neatly, avoiding the risk of tipping over; the synergistic effect of the guide wheels and the support sleeve enables the device to adapt to different furnace sizes and mold shell specifications, improving the equipment's versatility.

[0022] Please continue reading. Figure 1 and Figure 2 As shown in one embodiment of the present invention, a guardrail 31 is provided on the upper surface of the support frame 3.

[0023] The guardrail 31 refers to the enclosure structure set on the edge of the upper surface of the support frame. Specifically, it can be implemented by welding metal pipes into a grid-like frame, and the height of the guardrail can be set higher than the plane where the mesh plate is placed. This structure is used to prevent the valve mold shell from slipping off the side of the support frame during movement, and to avoid displacement of the mold shell due to the inertia of the device movement or external collisions.

[0024] Specifically, when the support frame supports the placed wire mesh, a height difference is formed between its edge area and the wire mesh. When the moving frame travels within the guide rail groove or the U-shaped support frame is pushed or pulled, the stacked mold shells on the wire mesh may tend to slide laterally due to inertia. The guardrail, through physical obstruction, restricts the movement of the mold shells within the support frame, preventing them from slipping off the frame edges. In the hot air circulation environment of a high-temperature furnace, the guardrail also reduces the number of times operators need to closely adjust the position of the mold shells.

[0025] Compared to existing technologies, traditional manual handling or simple trolleys lack edge protection structures, making the mold shell prone to tipping over during transportation due to bumps or sudden stops. This solution adds guardrails to create localized confinement areas while maintaining the overall openness of the support frame. This not only does not affect the flow path of hot air within the furnace but also effectively maintains the stability of the mold shell.

[0026] Through the above technical solution, this application reduces the risk of valve mold shell displacement or tipping during transportation in high-temperature furnace, reduces the necessity for operators to frequently enter the high-temperature area to adjust the position of the mold shell, and avoids workpiece damage or furnace cleaning problems caused by mold shell slippage.

[0027] Please continue reading. Figure 1 and Figure 2 As shown, in one embodiment of the present invention, guide rail grooves 12 corresponding to the guide wheels 11 are provided at both the left and right ends of the bottom surface of the heating furnace.

[0028] The guide rail groove 12 refers to a groove structure extending longitudinally along the bottom surface of the heating furnace. It can be formed by milling the surface of the furnace bottom steel plate using machining methods, and its width is clearance-fitted with the outer diameter of the guide wheel. This structure, through its motion constraint with the guide wheel at the bottom of the moving frame, ensures that the moving frame travels along a predetermined path.

[0029] The guide wheel 11 is a cylindrical rolling component installed at the bottom of the moving frame. It can be implemented using a combination of a bearing and a metal hub, with its rim thickness fitting snugly to the width of the guide rail groove. This component reduces the moving frame's resistance through rolling friction with the contact surface of the guide rail groove.

[0030] Specifically, when the moving frame is pushed into the heating furnace by an external power source, the guide wheels engage with the guide rail grooves to form a lateral limit. The linear extension characteristic of the guide rail grooves forces the moving frame to move precisely along the longitudinal axis of the furnace body, preventing lateral deviation during travel. After the moving frame reaches the predetermined position, the engagement between the guide wheels and the guide rail grooves maintains the positional stability of the frame during the heating process, eliminating the need for manual adjustment.

[0031] Compared to existing technologies, traditional heating furnaces lack guiding mechanisms, making the moving frame prone to misalignment during insertion and requiring repeated manual correction. This solution utilizes the interlocking relationship between guide rails and guide wheels to create a forced guiding mechanism, ensuring precise alignment of the moving frame during both movement and stationary phases.

[0032] Through the above technical solution, this application achieves automatic positioning of the valve mold shell within the heating furnace, eliminating positional deviations caused by manual placement and ensuring a uniform gap in the mold shell array within the furnace. The continuous contact between the guide wheels and the guide rail grooves effectively prevents displacement of the frame due to thermal deformation under high-temperature conditions, avoiding mold shell tipping accidents. The accurate positioning of the moving frame maintains the hot air circulation channel in its designed state, improving the uniformity and stability of the dewaxing process.

[0033] Please continue reading. Figure 1 and Figure 2 As shown, in one embodiment of the present invention, a U-shaped support frame 5 is provided on the front surface of the movable frame 1 via a pivot hinge, and a movable wheel 51 is provided on the lower surface of the two vertical rods of the U-shaped support frame 5. A push-pull rod 52 is provided between the two vertical rods of the U-shaped support frame 5.

[0034] The hinged joint refers to connecting two components via a rotatable shaft, which can be achieved using a metal shaft with bearings, allowing the U-shaped support frame to rotate around the shaft and switch working states. The U-shaped support frame is a frame with two parallel vertical rods and a bottom connecting structure, which can be formed by bending and welding steel plates, and is used to support the casters and push-pull rods. The casters are support components with rolling functionality, which can be implemented using casters with brakes, facilitating the overall movement and fixation of the device. The push-pull rod is an operating lever used to apply pushing and pulling forces, which can be implemented using metal tubing with anti-slip textures, providing a fulcrum for the operator.

[0035] Specifically, when the device needs to be moved, the U-shaped support frame rotates downwards around its pivot axis until the moving wheels contact the ground. At this point, a pushing or pulling force is applied via the push-pull rod, causing the moving wheels to move the entire device horizontally. When the device needs to enter the heating furnace, the U-shaped support frame rotates upwards and retracts to avoid interference with the furnace structure. When the moving wheels contact the ground, a temporary moving mechanism is formed, and the push-pull rod provides a labor-saving operating interface. Together, these two mechanisms enable rapid transfer of the device between the loading position and the heating furnace.

[0036] Compared to existing technologies, traditional manual handling or simple trolleys require operators to directly contact high-temperature areas and cannot guarantee the stability of the mold shell positioning. This solution uses a retractable moving mechanism to enable the device to move autonomously. Operators can enter and exit the furnace body from a safe position away from the furnace opening by controlling the device with a push-pull rod. At the same time, the moving wheels and guide rails work together to ensure precise movement trajectory.

[0037] Through the above technical solution, this application avoids the manual handling of the mold shell in and out of the high-temperature furnace, significantly reducing the risk of burns and labor intensity. The cooperation between the moving wheels and the guide rail groove allows the device to move along a predetermined path, ensuring accurate positioning of the mold shell inside the furnace and preventing tipping due to positional deviation. The retractable U-shaped support frame structure balances the requirements of convenient mobility and operational stability.

[0038] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A valve mold shell dewaxing and feeding device, characterized in that: The device includes a movable frame that works with the heating furnace. Multiple guide wheels are evenly spaced on the lower surface of the left and right vertical plates of the movable frame. Support columns are provided around the upper surface of the movable frame. Multiple threaded holes are evenly spaced on the support columns. Multiple support sleeves are evenly spaced on the support columns. The support sleeves are screwed to correspond to the threaded holes. A support frame is connected between the support sleeves around the perimeter. A placement mesh plate for placing valve mold shells is provided inside the support frame.

2. The valve mold shell dewaxing and feeding device according to claim 1, characterized in that: The upper surface of the support frame is equipped with a guardrail.

3. The valve mold shell dewaxing and feeding device according to claim 1, characterized in that: The bottom surface of the heating furnace is provided with guide rail grooves at both the left and right ends, corresponding to the guide wheels.

4. The valve mold shell dewaxing and feeding device according to claim 1, characterized in that: The front surface of the movable frame is hinged with a U-shaped support frame via a pivot. The lower surfaces of the two vertical rods of the U-shaped support frame are provided with moving wheels, and a push-pull rod is provided between the two vertical rods of the U-shaped support frame.

Images