Valve shell transfer vehicle

Abstract

The utility model provides a valve formwork transfer trolley, including the placement frame of upper and lower two layers, the placement frame lower surface all around of lower layer is provided with the support rod, the support rod lower surface is provided with universal wheel, the left and right two ends between upper and lower two layers's placement frame all are connected with the connection frame and are connected setting, a plurality of through -holes are set up on the placement rack, the collection spare of being used for receiving the chippings is set up to the placement rack lower surface, the fixed rod is set up all around to the placement rack upper surface, the fixed frame is set up on the fixed rod, a plurality of limiting pieces for realizing valve formwork spacing are set up on the fixed frame, the utility model discloses can realize the improvement formwork fixed and the protective nature, promote space utilization and reduce chippings pollution.

Description

Technical Field

[0001] This utility model relates to the technical field of valve precision casting production equipment, and in particular to a valve mold shell transfer vehicle. Background Technology

[0002] In the precision casting process of valves, the completed valve mold shells need to be transferred from the shell-making workshop to subsequent process areas such as dewaxing, firing, or casting. The valve mold shell itself is a shell structure formed by layers of refractory material. Before high-temperature sintering, its strength is limited, its texture is brittle, and its shape is usually irregular, with complex structures such as risers and gating gates. Therefore, it is extremely susceptible to cracking or damage during transportation due to collisions and vibrations. Furthermore, before and after transportation, the surface of the mold shell may be covered with dust or have debris from minor impacts. If these impurities are carried into subsequent high-temperature processes, they will directly affect the final quality of the valve casting.

[0003] Currently, the most common methods for transferring mold shells in workshops are using ordinary flatbed carts or simple shelving carts. These traditional transfer tools have the following obvious drawbacks: Poor fixation and protection: Ordinary flatbed trucks lack effective limiting and fixing structures, and the mold shells are simply stacked or placed side by side on the truck. During transportation, especially when passing through uneven roads or turning, the mold shells are prone to collision and friction with each other and with the truck body, resulting in mold shell damage, economic losses and affecting production progress.

[0004] Insufficient space utilization and classification management: Although simple shelving carts may be designed with multiple layers to increase the amount of material transferred at one time, the layers are usually rigidly connected and lack dedicated positioning structures for valve mold shells of different sizes, making it impossible to achieve orderly and stable stacking. This not only limits the efficiency of a single transfer but also easily leads to mold shell disorder, which is not conducive to production process management.

[0005] Debris contamination: Existing transfer tools generally do not consider debris collection functions. Debris and dust falling off the mold shell surface are directly scattered on the vehicle body or the ground, which not only pollutes the workshop environment and increases the amount of cleaning work, but more seriously, these debris may re-adhere to the inner cavity of the mold shell, forming defects such as slag inclusions and porosity in the casting during pouring, seriously affecting product quality. Summary of the Invention

[0006] In view of this, the purpose of this utility model is to provide a valve mold shell transfer vehicle that can improve the fixation and protection of the mold shell, increase space utilization and reduce debris pollution.

[0007] This utility model is implemented using the following method: a valve mold shell transfer vehicle includes upper and lower placement racks. The lower placement rack has support rods on all four sides of its lower surface, and casters are provided on the lower surface of the support rods. The upper and lower placement racks are connected at both ends by connecting frames. The placement rack has multiple through holes, and a collection component for receiving debris is provided on the lower surface of the placement rack. The upper surface of the placement rack has fixing rods on all four sides, and a fixing frame is provided on the fixing rods. Multiple limiting components for limiting the valve mold shell are provided at equal intervals on the fixing frame.

[0008] Furthermore, the collecting component includes a receiving tray, and guide rails are provided at both ends of the lower surface of the placement rack. The receiving tray is pulled out between the guide rails at both ends, and a pull handle is provided on the front of the receiving tray.

[0009] Furthermore, the limiting component includes sliding blocks, and multiple sliding blocks are evenly spaced on the front and rear crossbars of the fixed frame. A moving rod is provided between the sliding blocks at the front and rear ends, and a telescopic cylinder is embedded in the middle of the moving rod. A limiting fence is provided at the end of the telescopic rod of the telescopic cylinder.

[0010] Furthermore, the sliding block is fixed to the front and rear crossbars of the fixed frame by bolts.

[0011] The beneficial effects of this utility model are as follows: This utility model achieves stable fixing of the mold shell and collection of debris through the cooperation of the upper and lower two-layer placement rack, limiting parts and collecting parts, reducing collision damage and impurity contamination during the transfer process, and improving transfer efficiency and product quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is the front view of the present invention. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Please see Figure 1 and Figure 2As shown, this utility model provides an embodiment: a valve mold shell transfer vehicle, including upper and lower placement racks 1. The lower placement rack 1 is provided with support rods 2 on all four sides of its lower surface. The support rods 2 are provided with casters 21 on their lower surfaces. The upper and lower placement racks 1 are connected at both ends by connecting frames 3. The placement rack 1 has multiple through holes 11. The lower surface of the placement rack 1 is provided with a collection component 4 for receiving debris. The upper surface of the placement rack 1 is provided with fixing rods 5 on all four sides. The fixing rods 5 are provided with fixing frames 51. The fixing frames 51 are provided with multiple limiting components 6 at equal intervals for limiting the valve mold shell.

[0016] The upper and lower placement racks refer to a double-layer frame structure with independent load-bearing surfaces, which can be implemented using a welded metal frame. This structure is used for layering mold shells to improve space utilization. Support rods are vertical columns fixed to the bottom of the lower placement rack, which can be welded square steel. They are used to distribute loads and connect casters. Casters are movable rollers with braking functions, which can be made of polyurethane material for easy steering and stable parking. Connecting frames are rigid components connecting the upper and lower placement racks, which can be cross-welded channel steel to maintain the stability of the interlayer structure. Through holes are holes penetrating the surface of the placement rack, which can be arranged in a circular or square array to allow debris to fall and reduce the contact area of ​​the mold shells. Collection devices are debris receiving devices located below the placement rack, which can be implemented using a drawer-type receiving tray for easy collection of scattered debris. Fixing rods are vertical columns fixed to the top of the placement rack, which can be welded angle steel to support the fixing frame. The fixed frame refers to the rectangular frame surrounding the placement rack, which can be constructed using welded steel pipes, providing an installation base for the limiting components. The limiting components refer to the adjustable mold shell clamping structure, which can be implemented using sliding blocks in conjunction with telescopic cylinders, used to constrain the displacement of the mold shell.

[0017] Specifically, the upper and lower placement racks form a rigid whole through a connecting frame, effectively suppressing inter-layer vibration during transport. When the mold shell is placed on the surface of the placement rack, the through holes reduce contact friction and allow debris to fall to the collection unit. The limiting components on the fixed frame are adjustable in position via sliding to match the gating and riser structures of mold shells of different sizes. A telescopic cylinder drives the limiting gate to abut against the side wall of the mold shell, preventing shaking during transport. The collection unit is pulled out along the guide rail for centralized disposal of debris, preventing contamination.

[0018] Compared to existing technologies, the double-layer placement rack combined with the connecting rack enhances structural stability and prevents mold shell collisions caused by relative displacement between layers. The combination of the fixed frame and limiting components enables multi-point positioning of the mold shell, significantly reducing the breakage rate compared to the simple stacking of traditional flatbed carts. The combination of through holes and collection components solves the problem of debris scattering, and is more in line with cleanliness requirements than transfer carts without collection structures.

[0019] Through the above technical solutions, this application achieves stable fixation during the mold shell transfer process, reducing damage caused by collisions; the double-layer structure improves the efficiency of single transfer while maintaining the order of classified stacking; the debris collection function effectively prevents impurities from mixing into subsequent processes, improving the quality of finished castings.

[0020] Please continue reading. Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the collecting component 4 includes a receiving tray 41, and guide rails 42 are provided at both the left and right ends of the lower surface of the placement rack 1. The receiving tray 41 is pulled out between the guide rails 42 at the left and right ends, and a pull handle 43 is provided on the front of the receiving tray 41.

[0021] The receiving tray is a container used to collect debris falling from the mold shell surface. It can be a shallow tray structure made by stamping or injection molding from sheet metal, and its dimensions match the width of the placement rack. The guide rail is a guiding component that directs the receiving tray's horizontal movement. It can be implemented using U-shaped channel steel or ball bearing slide rails, symmetrically installed on both sides of the bottom of the placement rack. The pull handle is an operating component fixed to the front end of the receiving tray. It can be implemented using a welded or bolted metal pull ring or plastic grip structure, facilitating the operator's application of force.

[0022] Specifically, the receiving tray is connected to the placement rack via guide rails, forming a pull-out connection. When debris is generated during mold shell transport, it falls naturally into the receiving tray through the through-holes in the placement rack. Operators can pull the receiving tray outwards along the guide rails using the pull handle to collect and clean the accumulated debris. The symmetrical arrangement of the guide rails ensures the receiving tray moves horizontally during the pulling process, preventing jamming due to uneven force. The gap between the receiving tray and the guide rails can be controlled within a reasonable range; for example, dustproof strips or sealing gaskets can be used to prevent small debris from leaking through the gaps.

[0023] Compared to existing technologies, traditional transfer tools lack debris collection devices, resulting in mold shell debris scattering directly onto the ground. This solution, however, utilizes a pull-out receiving tray at the bottom of the placement rack to collect the debris. Compared to fixed collection containers, the combination of guide rails and the pull-out structure eliminates the need for disassembly during cleaning, significantly improving maintenance efficiency. Furthermore, the integrated design of the receiving tray and placement rack avoids occupying additional workshop space and solves the problems of low efficiency and secondary pollution associated with traditional manual cleaning.

[0024] Through the above technical solution, this application achieves directional collection and convenient cleaning of mold shell debris, effectively preventing workshop environmental pollution caused by debris scattering. The enclosed storage of the receiving tray prevents debris from spilling due to bumps during transportation, ensuring that the collected debris does not re-adhere to the mold shell surface. The guiding effect of the guide rail keeps the receiving tray moving stably during frequent pulling and pulling, extending the service life of the components. The design of the pull handle eliminates the need for operators to directly contact the inside of the receiving tray, reducing the risk of debris contaminating work clothes.

[0025] Please continue reading. Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the limiting member 6 includes a sliding block 61. Multiple sliding blocks 61 are evenly spaced on the front and rear crossbars of the fixed frame 51. A moving rod 62 is provided between the sliding blocks 61 at the front and rear ends. A telescopic cylinder 63 is embedded in the middle of the moving rod 62. A limiting fence 64 is provided at the end of the telescopic rod of the telescopic cylinder 63.

[0026] The sliding block is a block-shaped component that can slide along the crossbar of the fixed frame. It can be implemented using a metal block with internal threaded holes, and its position on the crossbar can be adjusted after being connected to it with bolts. The moving rod is a rigid rod connecting the front and rear sliding blocks, and can be implemented using a rectangular cross-section steel tube. It supports the telescopic cylinder and forms a lateral support structure. The telescopic cylinder is a power element that outputs linear displacement, and can be implemented using a pneumatic actuator with adjustable stroke. It adjusts the position of the limiting fence by driving the telescopic rod. The limiting fence is a blocking component used to contact the mold shell, and can be implemented using a metal grid structure with a buffer layer. It disperses pressure at the contact surface to avoid localized stress concentration.

[0027] Specifically, after the sliding blocks are fixed to the selected position on the crossbar with bolts, the moving rod connects the front and rear sliding blocks into a rigid whole. A telescopic cylinder is embedded in the middle of the moving rod, and the limiting grid connected to the end of the telescopic rod can be adjusted vertically with the movement of the cylinder. When the mold shell is placed on the placement frame, the limiting grid presses down against the top of the mold shell, forming a three-dimensional constraint with the fixing frame. By adjusting the spacing of the sliding blocks on the crossbar, the lateral fixing requirements of mold shells of different sizes can be accommodated, while the stroke adjustment of the telescopic cylinder can adapt to changes in the height of the mold shell.

[0028] Compared to existing technologies, traditional transfer tools rely solely on a fixed frame for rigid positioning, which cannot adapt to differences in mold shell size and lacks active clamping functionality. This solution, through a combination of sliding blocks and telescopic cylinders, enables the limiting barrier to have bidirectional adjustment capabilities, including adjustable lateral position and active vertical clamping, thus solving the problem of fixation failure caused by irregular shapes of the mold shell.

[0029] Through the above technical solution, this application achieves flexible fixing of valve mold shells of different sizes. The buffer contact surface of the limiting fence can avoid damage to the mold shell caused by rigid collision. The continuous clamping force provided by the telescopic cylinder effectively prevents the displacement or tilting of the mold shell during transportation, and significantly reduces the mold shell breakage rate.

[0030] Please continue reading. Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the sliding block 61 is fixed to the front and rear crossbars of the fixed frame 51 by bolts.

[0031] The sliding block refers to a movable component fitted onto the front and rear crossbars of the fixed frame. Specifically, it can be implemented using a metal block with a through hole, the inner diameter of which matches the outer diameter of the crossbar so that it can slide along the crossbar.

[0032] Among them, bolt fixing refers to the position locking achieved by the cooperation of bolts and nuts. Specifically, a combination of hexagonal head bolts and anti-loosening nuts can be used. After the bolt passes through the pre-set threaded hole on the side wall of the sliding block, a tightening force is applied to form friction fixation between the sliding block and the crossbar.

[0033] Specifically, after sliding blocks are fitted onto the front and rear crossbars of the fixed frame, the operator can adjust the position of the sliding blocks along the crossbars according to the actual size of the valve mold shell. When the limiting component moves to the target position, tightening the bolts generates sufficient friction between the sliding block and the crossbar, thereby preventing displacement of the sliding block due to vibration during transport. This fixing method retains the adjustability of the limiting component's position while ensuring the stability of the mold shell limiting structure.

[0034] Compared to existing technologies, traditional transfer tools often use welding or simple snap-fit ​​positioning for their limiting structures, which cannot be flexibly adjusted according to the mold shell size. By adopting bolt fixing, the position adjustment function of the limiting component is retained, while the mechanical locking method overcomes the defect of easy loosening of the snap-fit ​​structure, significantly improving the limiting component's resistance to displacement in dynamic transportation environments.

[0035] Through the above technical solution, this application can quickly adjust the limiting distance according to the shape of the mold shell and achieve reliable fixation, avoiding damage to the mold shell due to loosening of the limiting structure during transportation. At the same time, it solves the problems of low adjustment efficiency and poor stability of traditional fixing methods.

[0036] The telescopic cylinder in this utility model is existing technology, which is already clearly understood by those skilled in the art, and will not be described in detail here.

[0037] 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 transfer vehicle, characterized in that: The device includes an upper and lower shelf. The lower shelf has support rods on all four sides of its lower surface, and casters on the lower surface of the support rods. The upper and lower shelves are connected at both ends by connecting frames. The shelf has multiple through holes, and a collector for receiving debris is provided on its lower surface. The upper shelf has fixing rods on all four sides, and a fixing frame is provided on the fixing rods. Multiple limiting components for limiting the valve mold shell are arranged at equal intervals on the fixing frame.

2. The valve mold housing transfer vehicle according to claim 1, characterized in that: The collecting device includes a receiving tray. Guide rails are provided on both the left and right ends of the lower surface of the placement rack. The receiving tray is pulled out between the guide rails on the left and right ends. A pull handle is provided on the front of the receiving tray.

3. The valve mold housing transfer vehicle according to claim 1, characterized in that: The limiting component includes sliding blocks. Multiple sliding blocks are evenly spaced on the front and rear crossbars of the fixed frame. A moving rod is provided between the sliding blocks at the front and rear ends. A telescopic cylinder is embedded in the middle of the moving rod. A limiting fence is provided at the end of the telescopic rod of the telescopic cylinder.

4. A valve mold housing transfer vehicle according to claim 3, characterized in that: The sliding block is fixed to the front and rear crossbars of the fixed frame by bolts.

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