One-way sand flowing hopper

Abstract

The utility model relates to a one-way quicksand hopper, which comprises a sand hopper shell, a sand inlet, a sand outlet, a sand inlet, a sand outlet, a sand outlet, a sand outlet, a sand outlet, a sand outlet and a sand outlet, and is characterized in that the upper end of the sand hopper shell is provided with a material inlet; the driving mechanism is fixed on the sand hopper shell; and the valve block is connected with the output end of the driving mechanism, is used for blocking or opening the discharge port under the driving of the driving mechanism, and is made of an elastic material. The valve block made of the elastic material can generate elastic deformation when being impacted by sand at a high speed, impact force is effectively absorbed, the situation that a traditional metal valve clack is rapidly abraded due to hard collision is avoided, the service life of the valve block is remarkably prolonged, and the maintenance frequency and cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sand-shooting machine accessories, in particular to a one-way quicksand bucket. Background Art

[0002] The sand shooting machine is one of the important equipment used to prepare molding sand in the casting production process. Its working principle is to use high-pressure gas to shoot the molding sand from the sand hopper and fill it into the mold to form a cavity. In this process, due to the action of high-pressure gas, there is a phenomenon of sand blowing back at the hose connection between the sand hopper and the sand shooting hopper, which not only affects the sand shooting efficiency, but also may cause equipment damage and waste of resources. In order to solve this problem, the existing technology usually installs an ordinary valve at the inlet of the sand hopper to control the flow direction of the sand and prevent backblowing.

[0003] However, the design of this common valve is not ideal, and there are mainly the following problems:

[0004] 1. The valve disc of the valve is mostly made of hard metal material, which is very easy to wear under the impact of high-speed sand, resulting in reduced valve sealing performance and short service life.

[0005] 2. The maintenance cost of the valve is high, and frequent replacement increases production costs. Utility Model Content

[0006] In view of the deficiencies in the background technology, the utility model provides a one-way quicksand bucket.

[0007] The technical solution adopted by the utility model is: a one-way quicksand bucket, comprising:

[0008] A sand hopper shell, wherein the upper end of the sand hopper shell is provided with a material inlet interface, the interior of the sand hopper shell is provided with a cavity for passing sand, and the lower end is provided with a material outlet;

[0009] A driving mechanism, wherein the driving mechanism is fixed to the sand bucket housing;

[0010] A valve block is connected to the output end of the driving mechanism and is used to block or open the above-mentioned discharge port under the drive of the driving mechanism, and the valve block is made of elastic material.

[0011] Furthermore, the feed interface and the discharge port are respectively arranged on the left and right sides of the cavity, and a buffer slope is provided in the cavity below the feed interface.

[0012] Furthermore, the driving mechanism is a pneumatic cylinder, an oil cylinder or a linear motor.

[0013] Furthermore, the discharge port is an inverted frustum structure that is small at the top and large at the bottom, and the valve block is a frustum structure that is compatible with the discharge port.

[0014] Furthermore, the feed interface is provided with an integrated connecting pipe extending upward.

[0015] Furthermore, the integrated connecting pipe is provided with a plurality of convex steps.

[0016] Furthermore, a mounting step is provided at the bottom of the sand bucket shell.

[0017] Furthermore, it also includes a fixing nut and a supporting gasket, and the valve block and the supporting gasket are sleeved on the output end of the driving mechanism and fixed by the fixing nut.

[0018] Furthermore, a sealing groove for installing a sealing ring is provided on the bottom wall of the installation step.

[0019] The beneficial effects of the utility model are:

[0020] 1. Significantly improve durability: The valve block made of elastic material can produce elastic deformation when sand hits at high speed, effectively absorb the impact force, avoid the rapid wear of traditional metal valve flaps due to hard collision, significantly extend the service life of the valve block, and reduce maintenance frequency and cost.

[0021] 2. Enhanced sealing performance: The characteristics of the elastic material enable the valve block to fit the discharge port more closely when closed, and maintain good sealing even in a high-pressure gas environment, effectively preventing sand from blowing back and ensuring the continuity and stability of the sand-shooting machine.

[0022] 3. Strong adaptability: The one-way quicksand bucket of the present invention has a simple structure, is easy to install and debug, and can be widely used in different types of sand-shooting machine systems. It can be easily implemented whether it is a new production line or the transformation of existing equipment.

[0023] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0027] Figure 1-2 In the figure: 501, sand bucket shell; 502, feed interface; 503, cavity; 504, discharge port; 505, drive mechanism; 506, valve block; 507, buffer slope; 508, integrated connecting pipe; 509, convex step; 510, installation step; 511, fixing nut; 512, support gasket, 513, sealing groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] The utility model provides a one-way quicksand bucket.

[0031] In this embodiment, refer to Figure 1-2 The one-way quicksand bucket comprises:

[0032] A sand hopper shell 501, wherein the upper end of the sand hopper shell is provided with a material inlet interface 502, a sand-passing cavity 503 is provided inside, and a material outlet 504 is provided at the lower end;

[0033] A driving mechanism 505, wherein the driving mechanism is fixed to the sand bucket housing;

[0034] The valve block 506 is connected to the output end of the driving mechanism and is used to block or open the above-mentioned discharge port under the drive of the driving mechanism. The valve block is made of elastic material.

[0035] The present application provides a one-way quicksand hopper to realize the opening and closing of the feed port, wherein the sand hopper shell serves as the main structure, and a feed interface is provided at the upper end for the input of sand; and a discharge port is provided at the lower end for the output of sand. The internal cavity design ensures the smooth flow of sand. The driving mechanism is fixed to the sand hopper shell and is responsible for controlling the movement of the valve block. The valve block is made of elastic material and can block or open the discharge port under the drive of the driving mechanism, effectively preventing sand from blowing back and extending the service life of the valve block. Among them, the application of the valve block made of elastic material significantly enhances the durability and sealing of the sand hopper, reduces maintenance costs, and improves the working efficiency of the sand shooting machine.

[0036] The elastic material may be rubber.

[0037] In addition, when the valve block is sealing upward, sand is usually clamped between the side of the valve block and the side of the discharge port. Since the valve block made of elastic material is elastic, when the valve block is opened downward, the clamped sand will automatically pop out and fall due to the elastic effect of the valve block. Therefore, when the sand is clamped, it will not cause wear and damage to the side of the valve block. For valve blocks made of other hard materials, the valve block will often be pressed out by the clamped sand. After multiple closures, the hard surface of the valve block will be worn and unable to achieve the sealing effect, affecting the service life. Therefore, after using a valve block made of elastic material, the above problems will not occur, and the service life of the valve block can be greatly extended.

[0038] Specifically, the feed interface and the discharge port are respectively arranged on the left and right sides of the cavity, and a buffer slope 507 is provided in the cavity below the feed interface.

[0039] In this embodiment, the internal structure of the sand hopper shell is further optimized so that the feed interface and the discharge port are located on the left and right sides of the cavity respectively. A buffer slope is designed below the feed interface to facilitate a smooth transition of the sand after entering, reduce the direct impact on the internal structure, effectively reduce the wear of the sand on the inner wall of the sand hopper, improve the overall stability and durability of the equipment, and optimize the flow path of the sand, thereby improving the sand shooting efficiency.

[0040] Specifically, the driving mechanism is a pneumatic cylinder, an oil cylinder or a linear motor.

[0041] Specifically, the discharge port is an inverted frustum structure that is small at the top and large at the bottom, and the valve block is a frustum structure that is compatible with the discharge port.

[0042] In this embodiment, the discharge port is designed as an inverted cone structure with a small upper part and a large lower part, and the valve block adopts a cone structure adapted thereto, ensuring a close fit between the two and enhancing the sealing effect, while facilitating precise control and rapid response of the valve block. The combination of the discharge port of the inverted cone structure and the cone valve block not only improves the sealing performance, but also reduces the amount of sand remaining on the valve block, thereby avoiding the problem of poor opening and closing of traditional valves due to blockage by sand particles, and improving the overall operating efficiency of the sand shooting machine.

[0043] Specifically, the feed interface is upwardly extended with an integral connecting pipe 508; the integral connecting pipe is provided with a plurality of convex steps 509.

[0044] The feed interface is extended upward with an integrated connecting pipe, which is convenient for direct connection with upstream equipment, simplifies the installation process, and improves the stability and sealing of the connection.

[0045] Specifically, a mounting step 510 is provided at the bottom of the sand bucket shell.

[0046] The setting of the installation steps facilitates the installation and positioning of the sand bucket, ensures accurate docking with the base or other equipment, and improves installation efficiency and accuracy.

[0047] Specifically, it also includes a fixing nut 511 and a supporting gasket 512. The valve block and the supporting gasket are sleeved on the output end of the driving mechanism and fixed by the fixing nut.

[0048] The valve block and support gasket are installed at the output end of the drive mechanism and fixed by fixing nuts to form a stable connection structure, ensuring the firm installation and precise control of the valve block. The support gasket provides good support for the valve block and ensures sealing.

[0049] Specifically, a circle of sealing grooves 513 for installing a sealing ring is provided on the bottom wall of the installation step.

[0050] A sealing groove is arranged at the bottom of the installation step, and a sealing ring can be installed in the sealing groove, thereby ensuring the sealing performance of the installation step and other end faces.

[0051] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A one-way quicksand bucket, characterized in that include: A sand hopper shell, wherein the upper end of the sand hopper shell is provided with a material inlet interface, the interior of the sand hopper shell is provided with a cavity for passing sand, and the lower end is provided with a material outlet; A driving mechanism, wherein the driving mechanism is fixed to the sand bucket housing; A valve block is connected to the output end of the driving mechanism and is used to block or open the above-mentioned discharge port under the drive of the driving mechanism, and the valve block is made of elastic material.

2. The one-way quicksand hopper according to claim 1, characterized in that: The feed interface and the discharge port are respectively arranged on the left and right sides of the cavity, and a buffer slope is provided in the cavity below the feed interface.

3. The one-way quicksand hopper according to claim 1, characterized in that: The driving mechanism is an air cylinder, an oil cylinder or a linear motor.

4. The one-way quicksand hopper according to claim 1, characterized in that: The discharge port is an inverted frustum structure that is small at the top and large at the bottom, and the valve block is a frustum structure that is compatible with the discharge port.

5. The one-way quicksand hopper according to claim 1, characterized in that: The feed interface is provided with an integrated connecting pipe extending upward.

6. The one-way quicksand hopper according to claim 5, characterized in that: The integrated connecting pipe is provided with a plurality of convex steps.

7. The one-way quicksand hopper according to claim 1, characterized in that: A mounting step is provided at the bottom of the sand bucket shell.

8. The one-way quicksand hopper according to claim 1, characterized in that: It also includes a fixing nut and a supporting gasket, wherein the valve block and the supporting gasket are sleeved on the output end of the driving mechanism and fixed by the fixing nut.

9. The one-way quicksand hopper according to claim 7, characterized in that: A circle of sealing grooves for installing a sealing ring is arranged on the bottom wall of the installation step.

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