Device for cleaning sundries in cavity

Abstract

The utility model relates to the technical field of mold cleaning equipment, and particularly discloses a cavity interior sundry cleaning device which comprises a machine body, an extension arm and a cleaning head, and the two ends of the extension arm are connected with the machine body and the cleaning head respectively; a shaft tube is rotatably arranged in the extension arm, a shaft sleeve is rotatably arranged in the cleaning head, the shaft tube penetrates out of the shaft sleeve and extends out of the cleaning head, and the shaft tube is in transmission connection with the shaft sleeve; the shaft sleeve is sleeved with an eccentric block; a negative pressure device is arranged at the end, close to the machine body, of the shaft pipe and used for extracting air in the shaft pipe. The negative pressure device comprises a connecting sleeve, an air pipe and an air pump; one end of the connecting sleeve is communicated with the shaft tube, and the other end is connected with a dust remover; one end of the air pipe is connected with the air pump, and the other end of the air pipe is obliquely connected with the connecting sleeve; the mold cavity cleaning device solves the problems that at present, when a mold cavity is cleaned, manual cleaning is mostly relied on manpower, chippings and dust generated after cleaning are prone to drifting in air and difficult to collect, and workers are hurt.

Description

Technical Field

[0001] This utility model relates to the technical field of mold cleaning equipment, and more specifically, to a device for cleaning debris inside a mold cavity. Background Technology

[0002] In the casting production process, the treatment of the cavity mold is crucial to the quality of the casting and the life of the mold. Mold cleaning is a key step in the casting process to ensure the quality of the casting and extend the life of the mold.

[0003] Mold cleaning is primarily for removing residues, such as old sand, slag, scale, and residual paint, to prevent contamination of molten iron or casting defects like porosity and inclusions. Currently, cleaning residues in mold cavities mainly involves using tools like scrapers, wire brushes, and needle guns to separate the residues adhering to the cavity walls. After separation, compressed air is used to blow away dust to ensure no residue remains in the cavity. This cleaning process requires switching between multiple tools, consuming significant manpower. Furthermore, the blown-out dust is easily dispersed in the air and difficult to collect; if inhaled, it can harm workers. Therefore, a cavity cleaning device is needed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a cavity cleaning device, which solves the problems of relying on manual cleaning when cleaning mold cavities, and the fact that the debris and dust after cleaning are easily scattered in the air and difficult to collect, and cause harm to workers.

[0005] This utility model is achieved through the following technical solution: a cavity internal debris cleaning device, comprising a body, an extension arm and a cleaning head, wherein the two ends of the extension arm are respectively connected to the body and the cleaning head;

[0006] The extension arm has a rotatable shaft tube, the cleaning head has an opening in the mounting cavity, the mounting cavity has a rotatable bushing, the shaft tube passes through the bushing and extends out of the cleaning head, and the shaft tube is kinetically connected to the bushing; an eccentric block is fitted on the bushing.

[0007] A negative pressure device is provided at one end of the shaft tube near the machine body, and the negative pressure device is used to extract the air inside the shaft tube.

[0008] Furthermore, the negative pressure device includes a connecting sleeve, an air pipe, and an air pump, with the connecting sleeve disposed on the machine body;

[0009] One end of the connecting sleeve is connected to the shaft tube, and the other end of the connecting sleeve is connected to a dust collector;

[0010] One end of the air pipe is connected to the air pump, and the other end of the air pipe is obliquely connected to the connecting sleeve. The angle between the direction of the gas entering the connecting sleeve and the axis of the connecting sleeve is in the range of 10°-45°. The airflow entering the connecting sleeve flows towards one end of the dust collector.

[0011] Furthermore, the connecting sleeve is connected to the dust collector via a first connecting pipe;

[0012] The dust collector is a pulse bag filter or a wet dust collector.

[0013] Furthermore, a transmission tube is rotatably mounted on the machine body, and a motor is also mounted on the machine body, the motor being connected to the transmission tube in a transmission connection.

[0014] One end of the transmission tube is coaxially connected to the shaft tube, and the other end of the transmission tube is connected to a second connecting tube through a rotary joint. The end of the second connecting tube away from the rotary joint is coaxially connected to the connecting sleeve.

[0015] Furthermore, the output end of the motor is provided with a drive wheel, and a driven wheel is sleeved on the transmission tube. The drive wheel is connected to the driven wheel via a synchronous belt.

[0016] Furthermore, the cleaning head is tapered, and the larger diameter end of the cleaning head is connected to the extension arm.

[0017] Furthermore, a mounting ring is coaxially connected to one end of the cleaning head with a smaller diameter, and a plurality of first crushing teeth are provided on the end face of the mounting ring away from the cleaning head.

[0018] Furthermore, the outer wall of the cleaning head is provided with several second crushing teeth.

[0019] Furthermore, the extension arm comprises, from the outside in, a rubber layer, a steel wire braided layer, and a shock-absorbing layer, wherein the shock-absorbing layer is made of foamed silicone or polyurethane material.

[0020] Furthermore, the shaft tube is an elastic tube.

[0021] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0022] 1. An eccentric block is fitted on the bushing. When the shaft tube rotates at high speed, it drives the bushing to rotate at high speed. When the bushing drives the eccentric block to rotate at high speed, it generates vibration, which in turn causes the entire cleaning head to vibrate. When there are hard-to-clean residues such as old sand, iron slag, oxide scale, and residual paint on the inner wall of the mold cavity, the residues are vibrated and separated from the inner wall of the mold cavity by the high-speed vibration of the cleaning head. There is no need for manual insertion or entry into the cavity for cleaning. It is simple, lightweight, efficient, and easy to clean.

[0023] 2. Subsequently, the high-speed airflow enters the connecting sleeve through the air pipe and flows rapidly towards one end of the dust collector. Since the shaft tube is also connected to the connecting sleeve, a negative pressure is generated in the part between the air pipe and the shaft tube inside the connecting sleeve. The air enters from the shaft tube and is transported to one side of the connecting sleeve and then transported to one end of the dust collector. The shaft tube can then suck up the debris and dust residues that have been ground out in the cavity and directly transport them to the dust collector for separation and filtration. The cleaning of residues in the cavity and the treatment of residue areas are very simple and quick, which greatly improves the work efficiency. At the same time, it avoids the residues from being dispersed in the air, which is safer and more user-friendly than the traditional method of blowing them into the air.

[0024] 3. The conical shape of the cleaning head allows it to easily enter narrow, irregularly shaped spaces. Simultaneously, a mounting ring is coaxially connected to the smaller diameter end of the cleaning head. Several first-stage breaking teeth are located on the end face of the mounting ring away from the cleaning head. More specifically, several second-stage breaking teeth are arranged on the outer wall of the cleaning head. The first and second-stage breaking teeth serve the same purpose: to work in conjunction with the vibration of the cleaning head to more easily clean residues adhering to the inner wall of the cavity, further enhancing the efficiency of residue cleaning. Combined with negative pressure suction, it can simultaneously clean and extract the removed residue debris.

[0025] 4. The shaft tube is an elastic tube, which allows the extension arm to bend to a certain extent. For some narrow or irregularly curved cavity walls, the cleaning head can also enter to perform vibration cleaning while suctioning residual debris with negative pressure, thus enabling the processing of more irregular and difficult-to-clean cavities. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of a cavity cleaning device provided by this utility model;

[0028] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A;

[0029] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point B;

[0030] Icons: 1. Body, 2. Extension arm, 21. Shaft tube, 22. Rubber layer, 23. Steel wire braided layer, 24. Buffer and shock absorption layer, 3. Cleaning head, 31. Mounting cavity, 32. Bushing, 33. Eccentric block, 34. Second crushing tooth, 4. Negative pressure device, 41. Connecting sleeve, 42. Air pipe, 43. Air pump, 44. Dust collector, 45. First connecting pipe, 5. Transmission pipe, 51. Rotary joint, 52. Second connecting pipe, 6. Motor, 61. Drive wheel, 62. Driven wheel, 63. Synchronous belt, 7. Mounting ring, 71. First crushing tooth. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] Reference Figures 1 to 3 As shown, this embodiment provides a cavity cleaning device, including a body 1, an extension arm 2, and a cleaning head 3. The two ends of the extension arm 2 are connected to the body 1 and the cleaning head 3, respectively. More specifically, a shaft tube 21 is rotatably disposed inside the extension arm 2, and an installation cavity 31 is opened inside the cleaning head 3. A bushing 32 is rotatably disposed inside the installation cavity 31. The shaft tube 21 passes through the bushing 32 and extends out of the cleaning head 3. The shaft tube 21 and the bushing 32 are connected by a spline connection for transmission. An eccentric block 33 is fitted on the bushing 32. Therefore, when the shaft tube 21 rotates at high speed, it drives the bushing 32 to rotate at high speed, and the bushing 32 drives the eccentric block 33... 3. When rotating at high speed, vibration is generated, which in turn causes the entire cleaning head 3 to vibrate. When there are hard-to-remove old sand, iron slag, oxide scale, residual paint and other residues on the inner wall of the mold cavity, the high-speed vibration of the cleaning head 3 will separate the residues from the inner wall of the mold cavity. There is no need for manual insertion or entry into the cavity for cleaning. Of course, for some residues with strong adhesion and a very small amount that cannot be cleaned, they can be treated with pneumatic needle guns or grinding wheels. According to test results, this device can currently separate a large portion of the residues in the mold cavity. It is simple, lightweight, efficient and easy to clean.

[0034] like Figures 1-3 As shown, a negative pressure device 4 is provided at one end of the shaft tube 21 near the machine body 1. The negative pressure device 4 is used to extract air from inside the shaft tube 21. More specifically, the negative pressure device 4 includes a connecting sleeve 41, an air pipe 42, and an air pump 43. The connecting sleeve 41 is mounted on the machine body 1. One end of the connecting sleeve 41 is connected to the shaft tube 21, and the other end of the connecting sleeve 41 is connected to a dust collector 44. In a specific implementation, one end of the air pipe 42 is connected to the air pump 43, and the other end of the air pipe 42 is inclinedly connected to the connecting sleeve 41. The angle between the direction of the gas entering the connecting sleeve 41 from the air pipe 42 and the axis of the connecting sleeve 41 is in the range of 10°-45°. The high-pressure air entering the connecting sleeve 41 points towards the dust collector 44. Then, the high-speed airflow enters the connecting sleeve 41 from the air pipe 42 and flows towards the dust collector 44. 4. The air flows rapidly at one end. Since the shaft tube 21 is also connected to the connecting sleeve 41, a negative pressure is generated in the part between the air pipe 42 and the shaft tube 21 in the connecting sleeve 41. The air in the shaft tube 21 is drawn out. By drawing out the air in the shaft tube 21, a negative pressure is also generated at the end of the shaft tube 21 that is close to the cleaning head 3. The air enters from the shaft tube 21 and is transported to one side of the connecting sleeve 41 and then transported to one end of the dust collector 44. The shaft tube 21 can then suck up the debris and dust residues that have been ground out in the cavity and directly transport them to the dust collector 44 for separation and filtration. The cleaning of the residues in the cavity and the treatment of the residues are very simple and quick, which greatly improves the work efficiency. At the same time, it avoids the residues from being dispersed in the air, which is safer and more user-friendly than the traditional method of blowing them into the air.

[0035] More specifically, the connecting sleeve 41 is connected to the dust collector 44 through the first connecting pipe 45; the dust collector 44 is a pulse bag dust collector or a wet dust collector.

[0036] like Figure 1 and Figure 2 As shown, the machine body 1 is provided with a cavity, and a transmission pipe 5 is rotatably installed in the cavity. The transmission pipe 5 is rotatably connected to the machine body 1 through a bearing. The machine body 1 is also provided with a motor 6, and the motor 6 is connected to the transmission pipe 5. In specific implementation, the output end of the motor 6 is provided with a drive wheel 61, and a driven wheel 62 is sleeved on the transmission pipe 5. The drive wheel 61 is connected to the driven wheel 62 through a synchronous belt 63, or through a sprocket, which ultimately drives the shaft tube 21 to rotate, causing the cleaning head 3 to vibrate.

[0037] More specifically, one end of the transmission tube 5 is coaxially connected to the shaft tube 21, and the other end of the transmission tube 5 is connected to the second connecting tube 52 through the rotary joint 51. The end of the second connecting tube 52 away from the rotary joint 51 is coaxially connected to the connecting sleeve 41. The rotary joint 51 is mainly used to ensure airtight connection while allowing the second connecting tube 52 to remain stationary, while the transmission tube 5 can remain rotating. The second connecting tube 52 is made of the same material as the first connecting tube 45 and has a certain degree of support and elasticity.

[0038] like Figure 1 and Figure 3 As shown, the cleaning head 3 is conical. The larger diameter end of the cleaning head 3 is connected to the extension arm 2. The conical shape of the cleaning head 3 makes it easy to enter some narrow and irregularly shaped spaces. At the same time, the smaller diameter end of the cleaning head 3 is coaxially connected to the mounting ring 7. The end face of the mounting ring 7 away from the cleaning head 3 is provided with several first breaking teeth 71. More specifically, several second breaking teeth 34 are arranged on the outer wall of the cleaning head 3. The first breaking teeth 71 and the second breaking teeth 34 have the same effect. They mainly cooperate with the vibration of the cleaning head 3 to make it easier to clean the residues attached to the inner wall of the cavity, further enhancing the efficiency of residue cleaning. With the help of negative pressure suction, the residue debris can be cleaned and sucked up at the same time.

[0039] More specifically, such as Figures 1-3 As shown, the extension arm 2 comprises, from the outside in, a rubber layer 22, a steel wire braided layer 23, and a shock-absorbing layer 24. The shock-absorbing layer 24 is made of foamed silicone or polyurethane material. The rubber layer 22 is in direct contact with the external environment and is made of highly elastic rubber material, providing wear resistance, corrosion resistance, and insulation protection, adapting to the high-frequency vibration and friction during the cleaning head 3's cleaning of residues. The steel wire braided layer 23 is formed by multiple strands of stainless steel wires interwoven to form a mesh structure, enhancing axial tensile strength and providing effective support for the rotation of the shaft tube 21. The shock-absorbing layer 24 can reduce the vibration transmission rate and reduce the impact on the operator's hands.

[0040] Meanwhile, the shaft tube 21 is an elastic tube, which allows the extension arm 2 to be bent to a certain extent. For some narrow or irregularly curved cavity walls, the cleaning head 3 can also enter to perform vibration cleaning while suctioning residual debris with negative pressure, thus enabling the processing of more irregular and difficult-to-clean cavities.

[0041] More specifically, the machine body 1 is also equipped with handles and shoulder straps. Workers can carry the machine body 1 with one hand and use the other hand to grip the extension arm 2 for cleaning, or carry it on their back and use both hands as needed. Some operations require holding the mold to stabilize the body, so the choice can be made according to the actual cleaning situation to meet the corresponding usage environment.

[0042] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for cleaning debris inside a mold cavity, characterized in that: The utility model provides a cleaning device, including body (1), extension arm (2) and cleaning head (3), and the both ends of extension arm (2) are connected with body (1) and cleaning head (3) respectively, The shaft tube (21) is provided with a shaft sleeve (32) in the extension arm (2), the cleaning head (3) is provided with an installation cavity (31), the shaft sleeve (32) is provided with an eccentric block (33) on the shaft sleeve (32), the shaft tube (21) is provided with a negative pressure device (4) on one end close to the body (1), and the negative pressure device (4) is used for extracting air in the shaft tube (21). The negative pressure device (4) includes a connecting sleeve (41), an air pipe (42) and an air pump (43), and the connecting sleeve (41) is arranged on the body (1).

2. A device for cleaning foreign matter from inside a cavity as defined in claim 1, characterized in that One end of the connecting sleeve (41) is communicated with the shaft tube (21), and the other end of the connecting sleeve (41) is connected with a dust remover (44). One end of the air pipe (42) is connected with the air pump (43), and the other end of the air pipe (42) is inclinedly connected with the connecting sleeve (41), the angle between the direction of the gas input into the connecting sleeve (41) and the axis of the connecting sleeve (41) is 10°-45°, and the airflow entering the connecting sleeve (41) flows to one end of the dust remover (44). The connecting sleeve (41) is communicated with the dust remover (44) through a first connecting pipe (45).

3. A device for cleaning foreign matter from inside a cavity as defined in claim 2, wherein The dust remover (44) is a pulse cloth bag dust remover or a wet dust remover. A transmission pipe (5) is rotatably arranged on the body (1), and a motor (6) is further arranged on the body (1), and the motor (6) is in transmission connection with the transmission pipe (5).

4. A device for cleaning foreign material from the interior of a mould cavity according to claim 2 or 3, characterised in that, One end of the transmission pipe (5) is coaxially communicated with the shaft tube (21), and the other end of the transmission pipe (5) is connected with a second connecting pipe (52) through a rotary joint (51), and one end of the second connecting pipe (52) away from the rotary joint (51) is coaxially connected with the connecting sleeve (41). The output end of the motor (6) is provided with a driving wheel (61), the transmission pipe (5) is provided with a driven wheel (62), and the driving wheel (61) is in transmission connection with the driven wheel (62) through a synchronous belt (63).

5. A device for cleaning foreign matter from inside a cavity as defined in claim 4, wherein The cleaning head (3) is conical, and one end of the cleaning head (3) with a large diameter is connected with the extension arm (2).

6. A device for cleaning foreign matter from inside a cavity as defined in claim 5, wherein The cleaning head (3) is coaxially connected with a mounting ring (7) at one end with a small diameter, and the end face of the side of the mounting ring (7) away from the cleaning head (3) is provided with a plurality of first crushing teeth (71).

7. A device for cleaning foreign matter from inside a cavity as defined in claim 6, wherein A plurality of second crushing teeth (34) are arranged on the outer wall of the cleaning head (3).

8. A device for cleaning foreign matter from inside a cavity according to claim 7, wherein The extension arm (2) sequentially comprises a rubber layer (22), a steel wire braided layer (23) and a buffer damping layer (24) from outside to inside, and the buffer damping layer (24) is foamed silica gel or polyurethane material.

9. A device for cleaning foreign matter from inside a cavity as defined in claim 8, wherein The shaft tube (21) is an elastic tube.

10. A device for cleaning foreign matter from inside a cavity as defined in claim 9, wherein ​

Images