Sand cleaning device for pin rail casting

Abstract

The utility model relates to the technical field of casting sand cleaning equipment, and discloses a pin rail casting sand cleaning device which comprises a machine base, a lower bin body and an upper bin body are arranged above the machine base, a rolling shaft conveying belt used for conveying pin rails is arranged in the lower bin body and the upper bin body, and the pin rail casting sand cleaning device further comprises a movable rolling shaft assembly which is arranged between the lower bin body and the upper bin body. The movable rolling shaft assembly is used for replacing an original conventional rolling shaft conveying belt, the inclined state of the pin rail on the rolling shafts is changed in the mode that the rolling shafts are segmented, the connecting joints of the rolling shafts are changed, and the telescopic length of the rolling shafts is changed. And therefore, corresponding concentrated shot blasting and sand cleaning treatment is carried out on dead corners, and all-directional sand cleaning treatment operation on the pin rail is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sand cleaning equipment for castings, and particularly relates to a sand cleaning device for pin rail castings. Background Technique

[0002] After the pin rail casting is completed, it needs to be sand cleaned to remove the residual sand grains and impurities such as oxide scale on its surface. For sand cleaning of pin rail castings, through-type sand cleaning equipment is mostly used. The pin rail is transported to the sand cleaning bin by a roller conveyor belt, and a shot blasting machine is used with spray nozzles arranged at multiple angles to perform sand cleaning on the pin rail casting.

[0003] However, since the pin rail is always horizontally placed for sand cleaning operations, there will inevitably be certain dead corners when the shot blasting nozzles are used for cleaning, resulting in incomplete cleaning in the groove connection gaps of the pin rail, which affects the subsequent processing of the pin rail. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sand cleaning device for pin rail castings to solve the technical problem of dead corners existing during shot blasting and sand cleaning of the pin rail, resulting in incomplete cleaning.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sand cleaning device for pin rail castings includes a machine base. Above the machine base, there are a lower bin and an upper bin. Inside the lower bin and the upper bin, there are roller conveyor belts for transporting the pin rail and shot blasting machine nozzles for sand cleaning. It also includes a movable roller assembly, which is arranged between the lower bin and the upper bin and is used to adjust the inclination angle of the pin rail, and it is a cooperating mechanism with the roller conveyor belt;

[0007] A roller lifting assembly, which is fixed on both sides of the lower bin and is used to drive the movable roller assembly to move and adjust synchronously at both ends.

[0008] Further: The movable roller assembly includes multiple groups of telescopic shafts symmetrically arranged on both sides. One end of the telescopic shaft is fitted with a rotating seat for fixedly connecting to the lower bin. A movable connection assembly is commonly connected between the two symmetrically arranged telescopic shafts, and the two telescopic shafts rotate synchronously through the movable connection assembly. A jacking plate is commonly fixed below multiple groups of movable connection assemblies. Multiple groups of movable connection assemblies are connected in series through a belt drive, and a roller path motor for driving multiple groups of movable connection assemblies is fixed at one end of the jacking plate.

[0009] Further: The roller lifting assembly includes two jacking screws and a worm and worm gear assembly for synchronously lifting the two ends of the jacking plate. A synchronizing shaft is provided between the two worm and worm gear assemblies. A jacking motor is assembled at one end of the worm and worm gear assembly. A linear module is provided below the worm and worm gear assembly for driving the worm and worm gear assembly to move in the direction perpendicular to the jacking plate.

[0010] Further: The movable connection assembly includes a plurality of fixed seats fixed on the upper end surface of the jacking plate. A transfer shaft is rotatably fitted on the fixed seat through a bearing. A groove is provided on the middle shaft of the transfer shaft, and a plurality of transfer shafts are connected in series through a transmission belt. The two ends of the transfer shaft are symmetric along its middle plane, and universal joints are respectively connected to the two ends. The transfer shaft is rotatably fitted with a telescopic shaft through the universal joint.

[0011] Further: The telescopic shaft includes an outer shaft fixedly connected to the universal joint at one end, an inner shaft is slidably fitted inside the outer shaft, an installation seat is installed at the other end of the inner shaft, and the installation seat is fixed to the lower bin body. An extension sleeve is fixed at the fitting end of the outer shaft and the universal joint.

[0012] Further: The roller conveyor belt includes an inlet conveyor belt and an outlet conveyor belt. When the jacking plate lifts the telescopic shaft to the horizontal state, it is flush with the inlet conveyor belt and the outlet conveyor belt.

[0013] Further: A keyway is provided inside the outer shaft, a convex key is provided on the outer wall of the inner shaft, and the convex key is in clearance fit with the keyway.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The movable roller assembly provided by the present utility model replaces the original conventional roller conveyor belt with a movable roller assembly. Through the segmented rollers, the inclination state of the pin rail on the rollers is changed by changing the roller connection nodes and the telescopic length of the rollers, so as to perform corresponding centralized shot blasting and sand cleaning treatment on the dead corners, so as to achieve the all-round sand cleaning treatment operation of the pin rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 use in the description of 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, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of a sand cleaning device for a pin rail casting of the present utility model;

[0018] Figure 2 is a schematic internal structure diagram of the movable roller assembly of the present utility model;

[0019] Figure 3 It is a top view of a sand cleaning device for a pin rail casting of the present utility model;

[0020] Figure 4 is the present utility model Figure 3 A sectional view taken along A-A in;

[0021] Figure 5 is an assembly schematic diagram of the movable roller assembly and the roller lifting assembly of the present utility model;

[0022] Figure 6 is an enlarged view of area B in the movable roller assembly of the present utility model;

[0023] Figure 7 is a structural schematic diagram of the pin rail.

[0024] In the attached drawing reference numerals: 1, machine base; 2, lower bin body; 3, roller conveyor belt; 4, upper bin body; 5, movable roller assembly; 6, roller lifting assembly; 7, shot blasting machine nozzle; 31, inlet conveyor belt; 32, outlet conveyor belt; 51, movable connection assembly; 52, telescopic shaft; 53, rotating seat; 54, jacking plate; 55, roller path motor; 61, linear module; 62, worm and worm gear assembly; 63, synchronous shaft; 64, jacking screw rod; 65, lifting motor; 511, fixed seat; 512, adapter shaft; 513, groove; 514, universal joint; 521, inner shaft; 522, outer shaft; 523, extension bushing, 524, mounting seat. Detailed implementation manners

[0025] 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, and 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, and thus should not be construed as a limitation of 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 indicating the number 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.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] The present utility model will be further described below with reference to the accompanying drawings:

[0028] As Figures 1-7 shown, a shot blasting and sand cleaning device for pin rail castings includes a machine base 1. Above the machine base 1, there are a lower bin body 2 and an upper bin body 4. Inside the lower bin body 2 and the upper bin body 4, there is a roller conveyor belt 3 for conveying pin rails, and a shot blasting machine nozzle 7 for sand cleaning. It further includes a movable roller assembly 5, which is arranged between the lower bin body 2 and the upper bin body 4, used to adjust the inclination angle of the pin rail, and it is a matching mechanism with the roller conveyor belt 3;

[0029] This device is externally connected with a control module. When the movable roller assembly 5 is lifted, its upper end surface is flush with the roller conveyor belt 3 to form a complete flow channel. When the pin rail completely flows above the movable roller assembly 5, through the adjustment of the control module, the movable roller assembly 5 changes its state, thereby changing the placement state of the pin rail for targeted enhanced shot blasting and sand cleaning treatment.

[0030] A roller lifting assembly 6, which is fixed at both sides of the lower bin body 2, is used to synchronously drive the movable roller assembly 5 at both ends for movement adjustment. The roller lifting assembly 6 is one of the driving mechanisms for adjustment. It is arranged on both sides of the device, and the motors on both sides can be synchronously driven through a controller.

[0031] During specific operation, the movable roller assembly 5 is used to replace the original conventional roller conveyor belt 3. By means of segmented rollers, the connection nodes of the rollers and the telescopic length of the rollers are changed to change the inclination state of the pin rail on the rollers, so as to perform corresponding concentrated shot blasting and sand cleaning treatment on dead corners, so as to achieve the all-round sand cleaning treatment operation of the pin rail.

[0032] As an implementation manner of the present utility model, as Figures 1-4As shown in the figure: The movable roller assembly 5 includes multiple sets of telescopic shafts 52 symmetrically arranged on both sides. One end of the telescopic shaft 52 is fitted with a rotating seat 53 for fixedly connecting to the lower bin body 2. An active connection assembly 51 is commonly connected between the two symmetrically arranged telescopic shafts 52, and the two telescopic shafts 52 rotate synchronously through the active connection assembly 51. A jacking plate 54 is commonly fixed below multiple sets of active connection assemblies 51. Multiple sets of active connection assemblies 51 are connected in series through belt drive, and a roller path motor 55 for driving multiple sets of active connection assemblies 51 is fixed at one end of the jacking plate 54.

[0033] During specific operation, the roller path motor 55 drives multiple active connection assemblies 51 to drive multiple sets of telescopic shafts 52 to rotate synchronously, so as to convey the pin rails. During this process, by changing the position of the jacking plate 54, the node positions between multiple sets of telescopic shafts 52 are changed, and at the same time, the telescopic length of the telescopic shaft 52 changes adaptively, thereby changing the placement state of the pin rails on the upper end of the telescopic shaft 52, so as to cooperate with the shot blasting and sand cleaning equipment to complete the sand cleaning operation of the pin rails.

[0034] As an implementation manner of the present utility model, as Figures 1-4 shown in the figure: The roller lifting assembly 6 includes two jacking lead screws 64 for synchronously lifting the two ends of the jacking plate 54 and a worm and worm gear assembly 62. A synchronizing shaft 63 is arranged between the two worm and worm gear assemblies 62. A jacking motor 65 is assembled at one end of one of the worm and worm gear assemblies 62. A linear module 61 is fitted below the worm and worm gear assembly 62 for driving the worm and worm gear assembly 62 to move along the direction perpendicular to the jacking plate 54. The linear modules 61 arranged at both ends of the inlet and outlet of the lower bin body 2 are controlled by a control module to move synchronously, so as to change the positions of the jacking plate 54, the jacking lead screws 64 and the worm and worm gear assembly 62 along the direction perpendicular to the jacking plate 54.

[0035] As an implementation manner of the present utility model, as Figures 5-6 shown in the figure: The active connection assembly 51 includes multiple fixing seats 511 fixed on the upper end surface of the jacking plate 54. A transfer shaft 512 is rotatably fitted on the fixing seat 511 through a bearing. A belt groove 513 is arranged on the middle shaft of the transfer shaft 512, and multiple transfer shafts 512 are connected in series through a transmission belt. The two ends of the transfer shaft 512 are symmetric along its middle plane, and universal joints 514 are respectively connected to both ends of the transfer shaft 512. The transfer shaft 512 is rotatably fitted with the telescopic shaft 52 through the universal joint 514.

[0036] During specific operation, both ends of the transfer shaft 512 are connected to the telescopic shaft 52 through universal joints 514, enabling the rotation mating ends of the telescopic shaft 52 and the transfer shaft 512 to change angles. Double channels with grooves 513 are provided at the middle positions of multiple transfer shafts 512, and adjacent transfer shafts 512 are alternately connected through synchronous belts and finally connected to the roller table motor 55. The roller table motor 55 drives multiple transfer shafts 512 to drive the telescopic shafts 52 to rotate synchronously for pin rail conveying.

[0037] As an implementation manner of the present utility model, as Figures 5-6 shown: The telescopic shaft 52 includes an outer shaft 522 fixedly connected to the universal joint 514 at one end, an inner shaft 521 is slidably fitted therein, an installation seat 524 is installed at the other end of the inner shaft 521, and the installation seat 524 is fixed to the lower bin body 2. An extension bushing 523 is fixed at the mating end of the outer shaft 522 and the universal joint 514. The outer shaft 522 contacts the pin rail casting, and the inner shaft 521 supports the outer shaft 522.

[0038] As an implementation manner of the present utility model, as Figures 3-4 shown: The roller conveyor belt 3 includes an inlet conveyor belt 31 and an outlet conveyor belt 32. When the lifting plate 54 lifts the telescopic shaft 52 to a horizontal state, it is flush with the inlet conveyor belt 31 and the outlet conveyor belt 32.

[0039] During specific operation, the pin rail first enters from the inlet conveyor belt 31. After the pin rail completely enters above the telescopic shaft 52, the telescopic shaft 52 starts to change its state, driving the pin rail to change its placement state, and at the same time cooperating with the shot blasting and sand cleaning equipment for sand cleaning. The state change of the telescopic shaft 52 is preset by an external control device. After the sand cleaning is completed, the telescopic shaft 52 returns to its initial state and is flush with the inlet conveyor belt 31 and the outlet conveyor belt 32 again, and the pin rail flows out along the outlet conveyor belt 32.

[0040] As an implementation manner of the present utility model, as Figure 5 shown: A keyway is provided inside the outer shaft 522, and a convex key is provided on the outer wall of the inner shaft 521, and the convex key is in clearance fit with the keyway. The inner shaft 521 and the outer shaft 522 are driven by clamping of the convex key. When the clearance - fit convex key and keyway slide relative to each other, the resistance is smaller.

[0041] The working principle and usage process of the present utility model: The pin rail first enters from the inlet conveyor belt 31. After the pin rail completely enters above the telescopic shaft 52, the linear modules 61 provided at both the inlet and outlet ends of the lower bin body 2 are controlled by the control module to move synchronously, changing the positions of the lifting plate 54, the lifting screw rods 64, and the worm and worm gear assembly 62 along the direction perpendicular to the lifting plate 54. The lifting motor 65 drives the two lifting screw rods 64 to change the height of the lifting plate 54.

[0042] Meanwhile, the roller table motor 55 drives a plurality of movably connected components 51 to drive the synchronous rotation of multiple sets of telescopic shafts 52, thereby conveying the pin rails. During this process, by changing the position of the lifting plate 54, the node positions between the multiple sets of telescopic shafts 52 are changed, and at the same time, the telescopic length of the telescopic shafts 52 is adaptively changed accordingly, so as to change the placement state of the pin rails at the upper ends of the telescopic shafts 52, thereby cooperating with the shot blasting and sand cleaning equipment to complete the sand cleaning operation of the pin rails.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A pin rail casting sand cleaning device, comprising a machine base (1), a lower bin body (2) and an upper bin body (4) are arranged above the machine base (1), a roller conveyor belt (3) for conveying the pin rail and a shot blasting machine nozzle (7) for sand cleaning are arranged in the lower bin body (2) and the upper bin body (4), and the device is characterized in that: Also includes, A movable roller assembly (5), which is arranged between the lower bin body (2) and the upper bin body (4), is used to adjust the inclination angle of the pin track, and forms a matching mechanism with the roller conveyor belt (3); The roller lifting components (6) are fixed at two sides of the lower bin body (2) and are used to synchronously drive the movable roller components (5) at both ends to move and adjust.

2. A pin rail casting sand cleaning device according to claim 1, characterized in that: The movable roller assembly (5) comprises a plurality of groups of telescopic shafts (52) symmetrically arranged on both sides, one end of the telescopic shaft (52) is matched with a rotating seat (53) for fixedly connecting to the lower bin body (2), a movable connection assembly (51) is commonly connected between the two symmetrically arranged telescopic shafts (52), and the two telescopic shafts (52) rotate synchronously through the movable connection assembly (51), a lifting plate (54) is commonly fixed below the plurality of groups of movable connection assemblies (51), the plurality of groups of movable connection assemblies (51) are connected in series through a belt drive, and a roller motor (55) for driving the plurality of groups of movable connection assemblies (51) is fixed at one end of the lifting plate (54).

3. A pin rail casting sand cleaning device according to claim 2, characterized in that: The roller lifting assembly (6) comprises two lifting plates (54), lifting screws (64) for synchronously lifting at both ends, and a worm gear assembly (62), a synchronous shaft (63) is provided between the two worm gear assemblies (62), a lifting motor (65) is installed at one end of the worm gear assembly (62), and a linear module (61) is provided below the worm gear assembly (62) for driving the worm gear assembly (62) to move in a direction perpendicular to the lifting plate (54).

4. A pin rail casting sand cleaning device according to claim 2, characterized in that: The movable connection assembly (51) comprises a plurality of fixed seats (511) fixed on the upper end surface of the lifting plate (54); a transfer shaft (512) is rotatably engaged with the fixed seat (511) via a bearing; a belt groove (513) is provided on the middle shaft of the transfer shaft (512); and the plurality of transfer shafts (512) are serially engaged via a transmission belt; the two ends of the transfer shaft (512) are symmetrical along the middle surface thereof; the two ends are respectively connected to a universal joint (514); and the transfer shaft (512) is rotatably engaged with the telescopic shaft (52) via the universal joint (514).

5. A pin rail casting sand cleaning device according to claim 4, characterized in that: The telescopic shaft (52) comprises an outer shaft (522) having one end fixedly connected to the universal joint (514), an inner shaft (521) being slidably matched therewith, a mounting seat (524) being mounted on the other end of the inner shaft (521), and the mounting seat (524) being fixed to the lower chamber body (2), and an extension sleeve (523) being fixed to the mating end of the outer shaft (522) and the universal joint (514).

6. A pin rail casting sand cleaning device according to claim 2, characterized in that: The roller conveyor belt (3) comprises an inlet conveyor belt (31) and an outlet conveyor belt (32); when the lifting plate (54) lifts the telescopic shaft (52) to a horizontal state, it is flush with the inlet conveyor belt (31) and the outlet conveyor belt (32).

7. A pin rail casting sand cleaning device according to claim 4, characterized in that: A keyway is provided in the outer shaft (522), and a convex key is provided on the outer wall of the inner shaft (521), and the convex key is clearance-matched with the keyway.

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