Cooling vibrating screen

Abstract

The utility model relates to the technical field of flame-retardant cable material screening, in particular to a cooling vibrating screen which comprises a vibrating tank, a plurality of screening assemblies are arranged on the inner wall of the vibrating tank, brushes are installed on the portions, located on the lower sides of the screening assemblies, of the vibrating tank, and each screening assembly comprises a fixing ring fixedly connected with the inner wall of the vibrating tank. A screening cover is arranged on the inner wall of the fixing ring in a circumferential rotating and axial sliding mode, an upper sliding way and a lower sliding way are formed in the inner wall of the fixing ring, and two communicating grooves are symmetrically formed in the inner wall of the fixing ring. The flame-retardant cable material screening device has the advantages that by arranging the screening assembly, the screening cover can slide up and down and vibrate while rotating, so that the screening efficiency of flame-retardant cable materials can be improved, meanwhile, the flame-retardant cable materials can be fully screened through the multi-stage screening cover, the flame-retardant cable materials can be fully cooled, and the screening efficiency is improved. And the screening cover can be in contact with the brush once at a period of time, so that the brush can be fully utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of screening of flame-retardant cable materials, in particular to a cooling vibrating screen. Background Technique

[0002] Flame-retardant cable material is a material used to manufacture flame-retardant cables. Flame-retardant cable material has the property of preventing the spread of fire, which can reduce the damage of fire to cables and extend the service life of cables during a fire. This material is usually composed of polyvinyl chloride (PVC) and a flame retardant. The flame retardant can play a role in preventing the spread of fire. The use of flame-retardant cable material can improve the safety performance of cables, reduce the fire risk, and meet the requirements of the building and power industries for the safety performance of cables.

[0003] During the production process of flame-retardant cable materials, screening is usually required to ensure the uniformity and quality of the materials. A cooling vibrating screen is a commonly used screening device that can separate flame-retardant cable materials according to particle size. Through the vibration power and the screening action of the screen mesh, the flame-retardant cable materials are stratified and screened on the screen mesh. The vibration force of the vibrating screen can make the cable materials move quickly on the screen mesh and be classified through screen meshes with different apertures. The large-particle cable materials will be separated by the large-aperture screen mesh on the screen, while the finer particles will remain on the screen through the smaller-aperture screen mesh.

[0004] A cooling vibrating screen for low-smoke and halogen-free flame-retardant cable materials disclosed in Chinese Patent CN213435611U drives a rotating rod to rotate through a motor, so that the rotating rod drives three scrapers on the outside to rotate. The brush at the bottom of the scraper moves on the screen plate to dial the cable material particles into the screening holes.

[0005] However, compared with the existing technologies in the related field, in order to avoid blockage of the screening holes of the screen plate, the brush needs to be in a state of being in contact with the screen plate. Therefore, the bristles of the brush will be worn due to long-term contact with the screen plate, which will affect the cleaning effect, making the brush unable to be fully utilized. At the same time, in the existing technologies in the related field, only through the insertion rod, the screening holes on the screen plate cannot be completely cleaned, and thus it is still easy to block the screening holes, and it is necessary to stop the machine and dredge it manually, reducing the work efficiency. Summary of the Utility Model

[0006] The purpose of the utility model aims to solve at least one of the technical defects.

[0007] The purpose of the utility model is to overcome the shortcomings of the existing technology, solve the problems mentioned in the background technique, and provide a cooling vibrating screen.

[0008] The object of the present utility model is achieved through the following technical solutions: A cooling vibrating screen, comprising a vibrating tank, wherein a plurality of screening components are provided on the inner wall of the vibrating tank, and brushes are installed on the lower side of the vibrating tank at positions corresponding to the plurality of screening components;

[0009] The screening component includes a fixed ring fixedly connected to the inner wall of the vibrating tank. A screening cover is circumferentially rotatable and axially slidable on the inner wall of the fixed ring. An upper slideway and a lower slideway are formed on the inner wall of the fixed ring. Two communication grooves are symmetrically formed on the inner wall of the fixed ring. Guide blocks are fixedly connected to the positions of the lower slideway corresponding to the two communication grooves. Guide plates are hinged to the tops of the guide blocks. Pin shafts are symmetrically and fixedly connected to the outer surface of the screening cover, and the pin shafts are adapted to the upper slideway and the lower slideway;

[0010] A sliding sleeve is fixedly connected to the center of the screening cover. An upper cover is fixedly installed on the top of the vibrating tank. A motor is fixedly installed at the center of the upper cover. A transmission rod is installed through the upper cover at the output end of the motor, and the sliding sleeve is axially slidably connected to the outer surface of the transmission rod.

[0011] Preferably, multiple vibration components are fixedly installed on the outer surface of the vibrating tank. A plurality of support legs are fixedly connected to the outer surface of the vibrating tank near the bottom. The bottom ends of the support legs are all connected to a support shell through elastic members.

[0012] By adopting the above technical solutions, it is introduced how the vibrating tank generates vibration, and the vibration can be used to improve the screening efficiency of the flame retardant cable material.

[0013] Preferably, fixing blocks are fixedly connected to the ends of the brushes. Engaging grooves are formed in the vibrating tank at positions corresponding to the fixing blocks. Through holes are formed in the vibrating tank at positions corresponding to the brushes. The fixing blocks are fixedly installed inside the engaging grooves through bolts. Rotating holes are formed in the plurality of brushes at positions corresponding to the transmission rod.

[0014] By adopting the above technical solutions, it is convenient to replace the brushes.

[0015] Preferably, chamfers are formed at the tops of the fixed ring and the screening cover. Two splitting grooves are symmetrically formed in the fixed ring near the upper slideway. Both of the two splitting grooves are communicated with the upper slideway, and the pin shaft is adapted to the splitting groove.

[0016] By adopting the above technical solutions, it is possible to prevent materials from accumulating on the upper edges of the fixed ring and the screening cover.

[0017] Preferably, the guiding block is triangular in shape, and hinge grooves are formed at the tops of the guiding blocks. The guiding plates are hingedly connected to the hinge grooves through spring hinges, and the hinge grooves are used to control the swinging amplitude of the guiding plates.

[0018] By adopting the above technical solution, it is introduced how the guiding plate is hingedly connected to the guiding block. When the pin shaft of the screening cover reaches the communication groove, the screening cover will fall downward, and then the guiding plate is used to guide the pin shaft from the upper slideway to the lower slideway. When the pin shaft rotates clockwise with the screening cover and encounters the guiding block again, the pin shaft will cause the guiding plate to swing, and the guiding plate is used to guide the pin shaft from the lower slideway to the upper slideway. After the pin shaft enters the upper slideway, the spring hinge can be used to quickly reset the guiding plate.

[0019] Preferably, the sliding sleeve is rectangular in shape, a discharge port is provided at the bottom of the vibrating tank, and a feed pipe is fixedly provided at the top of the upper cover.

[0020] By adopting the above technical solution, the motor controls the rotation of the sliding sleeve and the screening cover through the transmission rod.

[0021] Compared with the prior art, the present utility model has the following advantages:

[0022] In this cooling vibrating screen, by arranging a screening assembly, it can achieve that while the screening cover rotates, it will generate vertical sliding and vibration, thereby improving the screening efficiency of the flame-retardant cable material. At the same time, the multi-stage screening cover can fully screen the flame-retardant cable material, enabling the flame-retardant cable material to be fully cooled. Also, when the screening cover rotates clockwise, the pin shaft rotates inside the upper slideway for one circle and inside the lower slideway for one circle, so that the screening cover can contact the brush once at intervals, making the brush fully utilized and effectively ensuring the screening efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for describing the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the first perspective of the present utility model;

[0025] Figure 2 It is a schematic structural diagram of the second perspective of the present utility model;

[0026] Figure 3 It is a state diagram of the screening cover when the pin shaft of the present utility model is inside the upper slideway;

[0027] Figure 4 The state diagram of the screening cover when the pin shaft of the present utility model is located inside the lower slideway;

[0028] Figure 5 The exploded view of the brush and the vibrating tank of the present utility model;

[0029] Figure 6 For the present utility model Figure 5 The enlarged view of the structure at A in

[0030] Figure 7 The internal structure diagram of the vibrating tank of the present utility model;

[0031] Figure 8 The exploded view of the screening cover and the vibrating tank of the present utility model;

[0032] Figure 9 The structure diagram of the pin shaft and the split groove of the present utility model;

[0033] Figure 10 The structure diagram of the first working state of the guide plate of the present utility model;

[0034] Figure 11 The structure diagram of the second working state of the guide plate of the present utility model;

[0035] Figure 12 The structure diagram of the hinge groove of the present utility model.

[0036] In the figure: 1, vibrating tank; 101, engaging groove; 2, screening assembly; 201, fixing ring; 2011, upper slideway; 2012, lower slideway; 2013, split groove; 202, screening cover; 203, guide block; 2031, hinge groove; 204, guide plate; 205, pin shaft; 206, sliding sleeve; 3, brush; 301, fixing block; 4, upper cover; 401, motor; 402, transmission rod; 403, feed pipe; 5, vibration assembly; 6, support leg; 601, elastic member; 602, support shell. Detailed implementation manners

[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0039] The additional aspects and advantages of the present utility model will be further given in the following description in conjunction with the drawings, and some will become obvious from the following description or be understood through the practice of the present utility model.

[0040] As Figures 1-12 shown, a cooling vibrating screen includes a vibrating tank 1. The bottom of the vibrating tank 1 is provided with a discharge port. The inner wall of the vibrating tank 1 is provided with a plurality of screening components 2. Below each of the plurality of screening components 2, the vibrating tank 1 is installed with a brush 3. The ends of the brushes 3 are fixedly connected with fixing blocks 301. The vibrating tank 1 is provided with engaging grooves 101 at positions corresponding to the fixing blocks 301. The vibrating tank 1 is provided with through holes at positions corresponding to the brushes 3. The fixing blocks 301 are fixedly installed inside the engaging grooves 101 through bolts. During use, the bolts of the fixing blocks 301 can be removed first, and then the brushes 3 can be pulled out from the inside of the vibrating tank 1, and then the brushes 3 can be replaced. The outer surface of the vibrating tank 1 is fixedly installed with multiple vibration components 5. The outer surface of the vibrating tank 1 near the bottom is fixedly connected with a plurality of support legs 6. The bottom ends of the support legs 6 are all connected with support shells 602 through elastic members 601. The vibration components 5 can be used to cause the vibrating tank 1 to vibrate, thereby improving the screening effect and cooling effect of the screening components 2;

[0041] The screening assembly 2 includes a fixing ring 201 fixedly connected to the inner wall of the vibrating tank 1. The inner wall of the fixing ring 201 is circumferentially rotatable and axially slidable with a screening cover 202. Chamfers are provided at the tops of both the fixing ring 201 and the screening cover 202, and the chamfers can prevent materials from accumulating on the upper edges of the fixing ring 201 and the screening cover 202. The sieve holes of multiple groups of screening covers 202 are all different. The upper side inside the vibrating tank 1 is the vibrating tank 1 with large sieve holes, and the lower side inside the vibrating tank 1 is the vibrating tank 1 with small sieve holes, and so on. Then, the multi-stage screening cover 202 can fully screen the materials. An upper slideway 2011 and a lower slideway 2012 are provided on the inner wall of the fixing ring 201. Two communicating grooves are symmetrically provided on the inner wall of the fixing ring 201. Guide blocks 203 are fixedly connected to the positions of the lower slideway 2012 where the two communicating grooves are located. Guide plates 204 are hingedly connected to the tops of the guide blocks 203. The shape of the guide block 203 is triangular, and hinge grooves 2031 are provided at the tops of the guide blocks 203. The guide plates 204 are hingedly connected to the hinge grooves 2031 through spring rotating shafts. The hinge grooves 2031 are used to control the swing amplitude of the guide plates 204. Pin shafts 205 are symmetrically and fixedly connected to the outer surface of the screening cover 202. Two splitting grooves 2013 are symmetrically provided at the position of the fixing ring 201 close to the upper slideway 2011. Both of the two splitting grooves 2013 communicate with the upper slideway 2011. The pin shafts 205 are adapted to the upper slideway 2011, the lower slideway 2012, and the splitting grooves 2013. By using the cooperation of the guide plates 204 and the guide blocks 203, when the screening cover 202 rotates clockwise, the pin shafts 205 can rotate in the upper slideway 2011 for one circle and in the lower slideway 2012 for one circle. When the pin shafts 205 are located in the lower slideway 2012, the screening cover 202 will press on the upper side of the brush 3, so that the brush 3 can dredge the sieve holes of the screening cover 202;

[0042] Sliding sleeves 206 are fixedly connected to the centers of the screening covers 202. The shape of the sliding sleeves 206 is rectangular. An upper cover 4 is fixedly installed on the top of the vibrating tank 1. A feed pipe 403 is fixedly provided on the top of the upper cover 4. A motor 401 is fixedly installed at the center of the upper cover 4. The output end of the motor 401 penetrates through the upper cover 4 and is provided with a transmission rod 402. The sliding sleeves 206 are axially slidably connected to the outer surface of the transmission rod 402. Rotating holes are provided at the positions of the multiple brushes 3 corresponding to the transmission rod 402. The motor 401 and the vibration assembly 5 in the present invention are both well-known technologies in this technical field, so their specific structures and working principles are not described in detail.

[0043] The working process of the present invention is as follows:

[0044] S1. During use, the flame-retardant cable material is filled into the interior of the vibrating tank 1 through the feed pipe 403, and then the motor 401 and the vibrating assembly 5 are started. On the one hand, the vibrating assembly 5 causes the vibrating tank 1 to vibrate, and on the other hand, the motor 401 controls the rotation of the sliding sleeve 206 and the screening cover 202 through the transmission rod 402;

[0045] S2. As shown in Figure 9 , Figure 10 and Figure 11 , when the pin shaft 205 of the screening cover 202 reaches the communication groove, the screening cover 202 will fall downward, and then the pin shaft 205 is guided from the upper slideway 2011 to the lower slideway 2012 by the guide plate 204;

[0046] S3. As shown in Figure 9 , Figure 10 and Figure 11 , when the pin shaft 205 is located in the lower slideway 2012, the screening cover 202 presses on the upper side of the brush 3, so that the brush 3 can dredge the sieve holes of the screening cover 202;

[0047] S4. As shown in Figure 9 , Figure 10 and Figure 11 , when the pin shaft 205 rotates clockwise with the screening cover 202 and encounters the guide block 203 again, the pin shaft 205 will cause the guide plate 204 to swing, and the pin shaft 205 is guided from the lower slideway 2012 to the upper slideway 2011 by the guide plate 204;

[0048] S5. As shown in Figure 3 and Figure 4 , when the screening cover 202 rotates, it will generate up and down sliding and can also be vibrated, so as to improve the screening efficiency of the flame-retardant cable material, and at the same time, the multi-stage screening cover 202 can fully screen the material;

[0049] S6. As shown in Figure 7 , Figure 8 and Figure 9 , the screened flame-retardant cable material will be discharged through the discharge port. When the material needs to be recycled, the upper cover 4 can be disassembled, and then the rotation of the screening cover 202 is controlled to align the pin shaft 205 with the splitting groove 2013, so that the screening cover 202 is pulled out from the interior of the vibrating tank 1 through the sliding sleeve 206. At this time, the material inside the vibrating tank 1 can be cleaned and collected (the disassembly work of the other screening covers 202 is the same as this step);

[0050] S7. As shown in Figure 5 , Figure 6 and Figure 7As shown, after the screening cover 202 is disassembled, by observing the wear condition of the brush 3, when replacement is needed, the bolts of the fixing block 301 can be removed first, then the brush 3 is pulled out from the inside of the vibrating tank 1, and then the brush 3 can be replaced.

[0051] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A cooling vibrating screen, characterized in that: It includes a vibrating tank (1), and a plurality of screening components (2) are provided on the inner wall of the vibrating tank (1). Brushes (3) are installed on the lower side of the vibrating tank (1) corresponding to each of the plurality of screening components (2). The screening component (2) includes a fixing ring (201) fixedly connected to the inner wall of the vibrating tank (1). The inner wall of the fixing ring (201) is circumferentially rotatable and axially slidable with a screening cover (202). An upper slideway (2011) and a lower slideway (2012) are formed on the inner wall of the fixing ring (201). Two communication grooves are symmetrically formed on the inner wall of the fixing ring (201). Guide blocks (203) are fixedly connected to the positions of the lower slideway (2012) corresponding to the two communication grooves. Guide plates (204) are hingedly connected to the tops of the guide blocks (203). Pin shafts (205) are symmetrically and fixedly connected to the outer surface of the screening cover (202), and the pin shafts (205) are adapted to the upper slideway (2011) and the lower slideway (2012). A sliding sleeve (206) is fixedly connected to the center of the screening cover (202). An upper cover (4) is fixedly installed on the top of the vibrating tank (1). A motor (401) is fixedly installed at the center of the upper cover (4). A transmission rod (402) is installed at the output end of the motor (401) and penetrates through the upper cover (4). The sliding sleeve (206) is axially slidably connected to the outer surface of the transmission rod (402).

2. The cooling vibrating screen according to claim 1, wherein: Multiple vibration components (5) are fixedly installed on the outer surface of the vibrating tank (1). A plurality of support legs (6) are fixedly connected to the outer surface of the vibrating tank (1) near the bottom. The bottom ends of the support legs (6) are connected to a support shell (602) through elastic members (601).

3. The cooling vibrating screen according to claim 1, characterized in that: Fixing blocks (301) are fixedly connected to the ends of the brushes (3). A clamping groove (101) is formed in the vibrating tank (1) corresponding to the fixing blocks (301). A through hole is formed in the vibrating tank (1) corresponding to the brushes (3). The fixing blocks (301) are fixedly installed inside the clamping groove (101) through bolts. Rotation holes are formed in the positions of the plurality of brushes (3) corresponding to the transmission rod (402).

4. A cooling vibrating screen according to claim 1, characterized in that: Chamfers are formed at the tops of the fixing ring (201) and the screening cover (202). Two splitting grooves (2013) are symmetrically formed in the fixing ring (201) near the upper slideway (2011). Both of the two splitting grooves (2013) are communicated with the upper slideway (2011). The pin shaft (205) is adapted to the splitting groove (2013).

5. A cooling vibrating screen according to claim 1, characterized in that: The guide blocks (203) are triangular in shape. Hinge grooves (2031) are formed at the tops of the guide blocks (203). The guide plates (204) are hingedly connected to the hinge grooves (2031) through spring shafts. The hinge grooves (2031) are used to control the swing amplitude of the guide plates (204).

6. The cooling vibrating screen according to claim 1, characterized in that: The shape of the sliding sleeve (206) is rectangular. The bottom of the vibrating tank (1) is provided with a discharge port, and a feed pipe (403) is fixedly arranged at the top of the upper cover (4).

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