Sand recovery device and method

Abstract

The invention discloses a sand recycling device and method, and relates to the technical field of brake drum casting, the sand recycling device comprises a collecting assembly, a conveying assembly, a lifting assembly and a storage assembly which are sequentially connected, the collecting assembly comprises a collecting part, a conveying part and a mounting part, the conveying part is arranged on the mounting part, and the collecting part is arranged on the conveying part; the conveying part comprises a mounting shell, a first driving structure and a pair of spiral conveying structures, a mounting window is formed in the top of the mounting shell, the collecting part is arranged at the top of the mounting shell and matched with the mounting window, a discharging opening is formed in the bottom of the mounting shell and matched with the conveying assembly, and the pair of spiral conveying structures are arranged in the mounting shell; and the first driving structure is arranged on the mounting part and is used for driving the spiral conveying structure, so that the problem that in an existing brake drum casting process, redundant molding sand generated in the core manufacturing and molding process cannot be effectively recycled is solved.

Description

Technical Field

[0001] The invention relates to the technical field of brake drum casting, and in particular to a sand material recovery device and method. Background Art

[0002] The brake drum is a common braking device widely used in automobiles and other mechanical equipment. It uses the friction principle to slow down or stop the movement of the vehicle through the friction between the brake shoe and the brake drum. The brake drum is usually a round metal part that rotates with the wheel. When the driver presses the brake pedal, the brake shoe is pushed against the brake drum, generating friction and achieving the braking effect.

[0003] At present, the brake drum is generally cast by sand casting. Sand casting is a traditional casting process, which is widely used to manufacture various metal parts and components, and is particularly suitable for small-batch production and castings with complex shapes. Sand casting is a method of making a mold in sand, pouring liquid metal into the mold cavity, and taking out the casting after the metal cools and solidifies. Its main steps include core making, molding, pouring, cooling and cleaning. Among them, the core making and molding process is usually accompanied by the generation of excess molding sand. This part of the molding sand is currently mainly recycled manually, and there is no equipment that can recycle this part of the molding sand. Therefore, in the current brake drum casting process, there is a problem that the molding sand cannot be effectively recycled.

[0004] In the invention with application number: CN202010448297.3 and publication number: CN111451437B, a molding sand recovery and screening device is disclosed, including a processing box, an extrusion and crushing device is provided in a fixed seat, and crushing wheels are provided on both sides below the discharge port. One end of the crushing wheel is rotatably connected to the processing box, and a screening box is provided below the crushing wheel. Although it can complete the recovery of molding sand, it is only suitable for the recovery of molding sand after use, and is not suitable for the recovery of excess molding sand during the core making and molding process. Summary of the invention

[0005] Based on this, in order to address the above problems, the present invention proposes a sand recovery device and method, which solves the problem that in the current brake drum casting process, the excess molding sand generated during the core making and molding process cannot be effectively recovered.

[0006] The technical solution of the present invention is: A sand material recovery device comprises a collecting assembly, a conveying assembly, a lifting assembly and a storage assembly which are sequentially connected, wherein the collecting assembly comprises a collecting part, a conveying part and a mounting part, wherein the conveying part is arranged on the mounting part, and the collecting part is arranged on the conveying part, wherein the collecting part is used to collect molding sand, the conveying part is used to convey molding sand, and the mounting part is used to mount the conveying part and the collecting part; The conveying part includes a mounting shell, a first driving structure and a pair of spiral conveying structures. The mounting shell is provided with a mounting window at the top, the collecting part is arranged at the top of the mounting shell and is arranged in cooperation with the mounting window, the mounting shell is provided with a discharge port at the bottom, the discharge port is arranged in cooperation with the conveying assembly, a pair of spiral conveying structures are arranged in the mounting shell and are rotatably connected with the mounting shell, and the first driving structure is arranged on the mounting part and is used to drive the spiral conveying structure; The spiral conveying structure includes a connecting rotating rod and a spiral blade. The spiral blade is fixedly arranged on the connecting rotating rod. Both ends of the connecting rotating rod respectively pass through the mounting shell and are fixedly connected to the mounting shell. The first driving structure is cooperated with a pair of connecting rotating rods in the spiral conveying structure to drive the connecting rotating rod to rotate.

[0007] Preferably, the first driving structure includes a first gear, a second gear, a first driving motor, a driving wheel and a driven wheel, the first gear is fixedly arranged at one end of a rotating rod connected to one of the spiral conveying structures, the second gear is fixedly arranged at one end of a rotating rod connected to the other spiral conveying structure, the first gear and the second gear are meshingly arranged, the first driving motor is arranged on the mounting portion, the driving wheel is fixedly arranged on the output shaft of the first driving motor, the driven wheel is fixedly arranged at the end of one of the rotating rods, and the driving wheel and the driven wheel are driven by a transmission belt.

[0008] Preferably, the collecting part includes a top frame, a bottom frame and a connecting frame, the connecting frame is arranged between the top frame and the bottom frame, the top of the connecting frame is fixedly connected to the top frame, the bottom of the connecting frame is fixedly connected to the bottom frame, the bottom frame is fixedly connected to the mounting shell and is arranged in coordination with the mounting window, and the connecting frame includes a plurality of inclined side guide plates.

[0009] Preferably, the mounting part includes a mounting frame and a mounting seat, the mounting shell is arranged on the mounting frame and fixedly connected to the mounting frame, the discharge port is located on one side of the mounting frame, the mounting seat is fixedly arranged at the bottom of the mounting frame and is arranged in cooperation with the first drive motor, and the first drive motor is fixedly arranged on the mounting seat.

[0010] Preferably, the conveying assembly includes a fixed frame, a second driving structure and a belt conveying structure, the belt conveying structure is arranged on the fixed frame, and the second driving structure is arranged on one side of the fixed frame and cooperates with the belt conveying structure to drive the belt conveying structure.

[0011] Preferably, the belt conveyor structure includes a conveyor belt and a pair of rotating connecting rods, the pair of rotating connecting rods are arranged on a fixed frame, and the two ends of the rotating connecting rods respectively pass through the fixed frame, and are rotatably connected to the fixed frame through a rotating bearing seat, each rotating connecting rod is provided with a pair of rotating gears, the conveyor belt is sleeved on the pair of rotating gears on the pair of rotating connecting rods, the conveyor belt is provided with a meshing structure arranged to mesh with the rotating gears, and the conveyor belt is connected to the rotating gears through the meshing structure.

[0012] Preferably, the meshing structure includes a plurality of meshing blocks, a first connecting portion is provided at one end of the meshing block, and a second connecting portion is provided at the other end, the first connecting portion and the second connecting portion are provided with matching plug-in structures, the first connecting portion and the second connecting portion can be plugged in through the plug-in structure and fixed by a plug-in pin, and two adjacent meshing blocks are rotatably connected.

[0013] Preferably, a support plate cooperating with the engaging structure is provided on the fixing frame, and the engaging structure is located on the support plate and slidably cooperates with the support plate.

[0014] Preferably, the second driving structure includes a second driving motor, a gear reversing box, a driving gear and a driven gear. The second driving motor and the gear reversing box are arranged on one side of the fixed frame. The output shaft of the second driving motor is fixedly connected to the input shaft of the gear reversing box. The driving gear is fixedly set on the output shaft of the gear reversing box. The driven gear is fixedly set at the end of one of the rotating connecting rods. The driving gear and the driven gear are connected by a transmission chain.

[0015] A sand material recovery method uses the sand material recovery device described above to recover excess molding sand during core making and molding processes.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When in use, the collecting component of the present invention needs to be arranged below the core making and molding equipment in the brake drum production line. After the core making and molding start, the excess molding sand can enter the installation shell from the collecting part through the installation window, and then the molding sand in the installation shell can be output from the discharge port to the conveying component through the spiral conveying structure. Then, the excess molding sand can be recovered to the storage component through the conveying component and the lifting component, thereby completing the recovery of the excess molding sand generated in the core making and molding process, and solving the problem that the excess molding sand generated in the core making and molding process in the current brake drum casting process cannot be effectively recovered. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a sand recovery device and method described in an embodiment of the present invention; Figure 2 is a schematic diagram of the structure of the collecting assembly and the conveying assembly described in an embodiment of the present invention; Figure 3 It is a schematic diagram of the local structure of the collection component described in the embodiment of the present invention Figure 1 ; Figure 4 It is a schematic diagram of the local structure of the collection component described in the embodiment of the present invention Figure 2 ; Figure 5 It is a schematic diagram of the local structure of the collection component described in the embodiment of the present invention Figure 3 ; Figure 6 is a schematic structural diagram of a conveying assembly described in an embodiment of the present invention; Figure 7 It is a schematic diagram of the local structure of the conveying assembly described in the embodiment of the present invention. Figure 1 ; Figure 8 It is a schematic diagram of the local structure of the conveying assembly described in the embodiment of the present invention. Figure 2 ; Fig. 9 It is described in the embodiment of the present invention Figure 8 A schematic diagram of the partially enlarged structure of the area circled in the middle; Fig.10 is a schematic diagram of the structure of the storage assembly described in an embodiment of the present invention; Fig.11 is a structural schematic diagram of the stirring assembly and the third driving structure described in an embodiment of the present invention; Description of reference numerals: 10-collecting assembly, 100-collecting part, 101-conveying part, 102-installing part, 103-installing shell, 104-first driving structure, 105-screw conveying structure, 106-installing window, 107-discharging port, 108-connecting rotating rod, 109-spiral blade, 110-first gear, 111-second gear, 112-first driving motor, 113-driving wheel, 114-driven wheel, 115-driving belt, 116-top frame, 117-bottom frame, 118-connecting frame, 119-installing frame, 120-installing seat, 121-first unloading assembly, 122-first baffle, 123-first driving member, 124-first slot, 20-conveying assembly, 200-fixed frame, 201-second driving structure, 202-belt conveying structure, 203-conveying belt Belt, 204-rotating connecting rod, 205-rotating bearing seat, 206-rotating gear, 207-meshing structure, 208-first connecting part, 209-second connecting part, 210-plug-in structure, 211-plug-in pin, 212-second driving motor, 213-gear reversing box, 214-driving gear, 215-driven gear, 216-transmission chain, 217-support plate, 218-first inclined baffle, 30-lifting component, 40-storage component, 400-stirring component, 401-third driving structure, 402-stirring rotating rod, 403-stirring blade, 404-assembly part, 405-third driving motor, 406-driving gear, 407-sub-gear, 408-discharging port, 409-second baffle, 410-second driving member, 411-second slot, 412-observation window. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] Example: like Figures 1 to 4 As shown, this embodiment discloses a sand recovery device, comprising a collecting assembly 10, a conveying assembly 20, a lifting assembly 30 and a storage assembly 40 which are sequentially connected and arranged, the collecting assembly 10 comprises a collecting part 100, a conveying part 101 and a mounting part 102, the conveying part 101 is arranged on the mounting part 102, the collecting part 100 is arranged on the conveying part 101, the collecting part 100 is used to collect molding sand, the conveying part 101 is used to convey molding sand, and the mounting part 102 is used to install the conveying part 101 and the collecting part 100; The conveying part 101 includes a mounting shell 103, a first driving structure 104 and a pair of spiral conveying structures 105. The mounting shell 103 is provided with a mounting window 106 at the top. The collecting part 100 is arranged at the top of the mounting shell 103 and is arranged in cooperation with the mounting window 106. The mounting shell 103 is provided with a discharge port 107 at the bottom. The discharge port 107 is arranged in cooperation with the conveying assembly 20. The pair of spiral conveying structures 105 are arranged in the mounting shell 103 and are rotatably connected with the mounting shell 103. The first driving structure 104 is arranged on the mounting part 102 and is used to drive the spiral conveying structure 105. The spiral conveying structure 105 includes a connecting rod 108 and a spiral blade 109. The spiral blade 109 is fixedly arranged on the connecting rod 108. Both ends of the connecting rod 108 respectively pass through the mounting shell 103 and are fixedly connected to the mounting shell 103. The first driving structure 104 is cooperated with the connecting rod 108 in a pair of spiral conveying structures 105 to drive the connecting rod 108 to rotate.

[0020] When in use, the collecting component 10 of the present invention needs to be arranged below the core making and molding equipment in the brake drum production line. After the core making and molding start, the excess molding sand can enter the installation shell 103 from the collecting part 100 through the installation window 106, and then the molding sand in the installation shell 103 can be output from the discharge port 107 to the conveying component 20 through the spiral conveying structure 105. Then, the excess molding sand can be recovered to the storage component 40 through the conveying component 20 and the lifting component 30, thereby completing the recovery of the excess molding sand generated in the core making and molding process, and solving the problem that the excess molding sand generated in the core making and molding process in the current brake drum casting process cannot be effectively recovered.

[0021] At the same time, since the molding sand will be squeezed during the core making and molding process, some of the molding sand may gather into clumps or blocks, but these molding sand clumps or molding sand blocks are in an unstable state and are easily broken up. Therefore, setting up a spiral conveying structure 105 can not only complete the transfer of the molding sand, but also break up these unstable molding sand clumps or molding sand blocks.

[0022] like Figures 4 to 5As shown, in order to facilitate the control of the discharge of molding sand from the discharge port 107, this embodiment is improved on the basis of the above embodiment, and the difference from the above embodiment is that a first discharge component 121 is provided at the discharge port 107, and the first discharge component 121 includes a first baffle 122 and a pair of first driving members 123, and a first slot 124 is provided at the discharge port 107 to cooperate with the first baffle 122. The first baffle 122 is arranged in the first slot 124 and is slidably connected to the first slot 124. A pair of first driving members 123 are arranged on both sides of the discharge port 107, and the output ends of a pair of first driving members 123 are respectively fixedly connected to one side of the first baffle 122, so as to drive the first baffle 122 to slide in the first slot 124.

[0023] The first driving member 123 may be any one of a pneumatic cylinder and a hydraulic cylinder, and the pneumatic cylinder or the hydraulic cylinder is a pneumatic cylinder or a hydraulic cylinder in the prior art that can realize the function of the present invention.

[0024] When in use, the first baffle 122 can be driven to slide in the first slot 124 by a pair of first driving members 123, thereby controlling the discharge of the molding sand from the discharge port 107. At the same time, when the amount of molding sand in the installation shell 103 is small, the discharge port 107 can be closed, so that the molding sand in the installation shell 103 is continuously stirred by the spiral blades 109 in the spiral conveying structure 105.

[0025] like Figure 3 to Figure 4 As shown, in order to drive the spiral conveying assembly 20, this embodiment is improved on the basis of the above embodiment, and the difference from the above embodiment is that the first driving structure 104 includes a first gear 110, a second gear 111, a first driving motor 112, a driving wheel 113 and a driven wheel 114, the first gear 110 is fixedly arranged at one end of one of the spiral conveying structures 105 connected to the rotating rod 108, the second gear 111 is fixedly arranged at one end of the other spiral conveying structure 105 connected to the rotating rod 108, the first gear 110 and the second gear 111 are meshed, the first driving motor 112 is arranged on the mounting portion 102, the driving wheel 113 is fixedly arranged on the output shaft of the first driving motor 112, and the driven wheel 114 is fixedly arranged at the end of one of the rotating rods 108, and the driving wheel 113 and the driven wheel 114 are driven by a transmission belt 115.

[0026] When in use, the first driving motor 112 can drive the driving wheel 113, which in turn drives the driven wheel 114 to rotate through the transmission belt 115, thereby driving the first gear 110 and the second gear 111 to rotate, and further driving the spiral conveying structure 105 to rotate.

[0027] The transmission belt 115 and the driving wheel 113 and the driven wheel 114 may be connected by friction or by a meshing structure, so that the driving wheel 113 drives the driven wheel 114 to rotate through the transmission belt 115 .

[0028] like Figure 3 As shown, in order to facilitate the collection of molding sand, this embodiment is improved on the basis of the above embodiment, and the difference from the above embodiment is that the collecting part 100 includes a top frame 116, a bottom frame 117 and a connecting frame 118, and the connecting frame 118 is arranged between the top frame 116 and the bottom frame 117. The top of the connecting frame 118 is fixedly connected to the top frame 116, and the bottom of the connecting frame 118 is fixedly connected to the bottom frame 117. The bottom frame 117 is fixedly connected to the installation shell 103 and is arranged in conjunction with the installation window 106. The connecting frame 118 includes a plurality of inclined side guide plates.

[0029] Among them, it should be noted that the size of the top frame 116 needs to be set in coordination with the core making and molding equipment, so as to facilitate the collection of excess molding sand generated during the core making and molding process. At the same time, the size of the bottom frame 117 needs to be set to be smaller than the size of the top frame 116, so that the molding sand can slide smoothly from the top frame 116 to the connecting frame 118, and then slide down to the bottom frame 117, and then enter the installation shell 103 through the installation window 106.

[0030] like Figure 5 As shown, in order to facilitate the installation of the shell 103 and the first drive motor 112, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that the mounting portion 102 includes a mounting frame 119 and a mounting seat 120, the mounting shell 103 is arranged on the mounting frame 119 and is fixedly connected to the mounting frame 119, the discharge port 107 is located on one side of the mounting frame 119, the mounting seat 120 is fixedly arranged at the bottom of the mounting frame 119, and is arranged in coordination with the first drive motor 112, and the first drive motor 112 is fixedly arranged on the mounting seat 120.

[0031] The installation of the mounting frame 119 can facilitate the installation of the housing 103, and the installation of the mounting seat 120 can facilitate the installation of the first drive motor 112. It should be noted that the specific height and shape of the mounting frame 119 need to be set according to the height of the core making and molding equipment.

[0032] In another embodiment, the mounting portion 102 includes a mounting frame 119 and a mounting seat 120, the mounting shell 103 is disposed on the mounting frame 119 and fixedly connected to the mounting frame 119, the discharge port 107 is located on one side of the mounting frame 119, the mounting seat 120 is fixedly disposed on one side of the mounting frame 119, and is cooperated with the first drive motor 112, and the first drive motor 112 is fixedly disposed on the mounting seat 120.

[0033] like Figure 2 , Figures 6 to 9 As shown, in order to transport the molding sand to the next equipment, this embodiment is improved on the basis of the above embodiment. The difference from the above embodiment is that the conveying assembly 20 includes a fixed frame 200, a second driving structure 201 and a belt conveying structure 202, the belt conveying structure 202 is arranged on the fixed frame 200, and the second driving structure 201 is arranged on one side of the fixed frame 200 and is cooperated with the belt conveying structure 202 to drive the belt conveying structure 202.

[0034] Among them, the belt conveyor structure 202 includes a conveyor belt 203 and a pair of rotating connecting rods 204. The pair of rotating connecting rods 204 are arranged on the fixed frame 200, and both ends respectively pass through the fixed frame 200, and are rotatably connected to the fixed frame 200 through a rotating bearing seat 205. A pair of rotating gears 206 are fixed on each rotating connecting rod 204. The conveyor belt 203 is sleeved on the pair of rotating gears 206 on the pair of rotating connecting rods 204. The conveyor belt 203 is provided with a meshing structure 207 that is meshed with the rotating gear 206. The conveyor belt 203 is connected to the rotating gear 206 through the meshing structure 207.

[0035] The meshing structure 207 includes a plurality of meshing blocks, a first connecting portion 208 is provided at one end of the meshing block, and a second connecting portion 209 is provided at the other end. The first connecting portion 208 and the second connecting portion 209 are provided with a matching plug-in structure 210. The first connecting portion 208 and the second connecting portion 209 can be plugged in through the plug-in structure 210 and fixed by a plug-in pin 211. Two adjacent meshing blocks are rotationally connected.

[0036] The second driving structure 201 includes a second driving motor 212, a gear reversing box 213, a driving gear 214 and a driven gear 215. The second driving motor 212 and the gear reversing box 213 are arranged on one side of the fixed frame 200. The output shaft of the second driving motor 212 is fixedly connected to the input shaft of the gear reversing box 213. The driving gear 214 is fixedly set on the output shaft of the gear reversing box 213. The driven gear 215 is fixedly set at the end of one of the rotating connecting rods 204. The driving gear 214 and the driven gear 215 are connected by a transmission chain 216.

[0037] When in use, the gear reversing box 213 can be driven by the second driving motor 212, thereby driving the driving gear 214, and then driving the driven gear 215 through the transmission chain 216, thereby driving the conveying belt 203 to rotate around a pair of rotating connecting rods 204. The conveying belt 203 and the rotating gear 206 are connected by a meshing structure 207, which can facilitate the conveying belt 203 when the rotating connecting rod 204 rotates, thereby facilitating the transfer of molding sand.

[0038] like Fig. 9 As shown, in order to facilitate the stability of the conveying belt 203 when conveying molding sand, it is further preferred that a support plate 217 is provided on the fixed frame 200 and is arranged in cooperation with the meshing structure 207, and the meshing structure 207 is located on the support plate 217 and is slidably matched with the support plate 217.

[0039] like Figure 8 As shown, in order to prevent the molding sand from falling from one end of the conveyor belt 203 when it is released from the discharge port 107, it is further preferred that the end of the fixed frame 200 close to the discharge port 107 is provided with a first inclined baffle 218 which is arranged in cooperation with the discharge port 107, and the first inclined baffle 218 is slidably matched with the conveyor belt 203.

[0040] The provision of the first inclined baffle 218 can effectively prevent the molding sand from falling from one end of the conveyor belt 203 when being discharged from the discharge port 107 .

[0041] In the above embodiment, the lifting assembly 30 may adopt an auger screw conveyor in the prior art, and the storage assembly 40 may adopt a sand storage tank in the prior art.

[0042] like Figure 10 to Figure 11 As shown, in order to prevent the molding sand from agglomerating or lumping in the storage assembly 40 , a stirring assembly 400 is provided in the storage assembly 40 , and a third driving structure 401 for driving the stirring assembly 400 is provided on one side of the storage assembly 40 .

[0043] The stirring assembly 400 includes three stirring members, and the three stirring members are rotatably disposed in the storage assembly 40 .

[0044] The stirring member includes a stirring rod 402 and a plurality of stirring blades 403 . The two ends of the stirring rod 402 respectively pass through the two sides of the storage component 40 and are rotatably connected to the storage component 40 . The plurality of stirring blades 403 are arranged on the stirring rod 402 and are detachably connected to the stirring rod 402 through an assembly part 404 .

[0045] In one embodiment, one end of the stirring shaft located in the storage assembly 40 is a square structure, and the assembly 404 includes a pair of connecting plates, which are clamped on the stirring shaft 402 and detachably connected by connecting bolts, and the stirring blade 403 is detachably connected to one of the connecting plates by bolts.

[0046] The third driving structure 401 includes a third driving motor 405, a driving gear 406 and three sub-gears 407. The three sub-gears 407 are respectively fixed on the ends of the stirring rods 402 in the three stirring members. The third driving motor 405 is arranged on one side of the storage component 40. The driving gear 406 is fixed on the output shaft of the third driving motor 405. The driving gear 406 is located between the three sub-gears 407 and is meshed with the three sub-gears 407.

[0047] When in use, the third driving motor 405 can drive the driving gear 406, and then drive the three sub-gears 407, so that the three stirring members can rotate, and then the molding sand in the storage component 40 is stirred, so as to prevent the molding sand from clumping or lumping.

[0048] like Fig.10 As shown, in order to facilitate the discharge of the molding sand in the storage component 40, it is further preferred that a discharge port 408 is provided at the bottom of the storage component 40, and a second discharge component is provided at the discharge port 408. The second discharge component includes a second baffle 409 and a pair of second driving members 410. A second slot 411 is provided at the discharge port 408 to cooperate with the second baffle 409. The second baffle 409 is arranged in the second slot 411 and is slidably connected to the second slot 411. A pair of second driving members 410 are arranged on both sides of the discharge port 408, and the output ends of a pair of second driving members 410 are respectively fixedly connected to one side of the second baffle 409, so as to drive the second baffle 409 to slide in the second slot 411.

[0049] The second driving member 410 may be any one of a pneumatic cylinder and a hydraulic cylinder, and the pneumatic cylinder or the hydraulic cylinder is a pneumatic cylinder or a hydraulic cylinder in the prior art that can realize the function of the present invention.

[0050] When in use, the second baffle 409 can be driven to slide in the second slot 411 by a pair of second driving members 410 , thereby controlling the discharge of molding sand from the discharge port 408 .

[0051] An observation window 412 is provided on one side of the storage assembly 40, and the observation window 412 is sealed by a transparent plate. The arrangement of the observation window 412 can facilitate observation of the state of the molding sand.

[0052] The transparent plate can be made of glass in the prior art.

[0053] A sand material recovery method uses the sand material recovery device described above to recover excess molding sand during core making and molding processes.

[0054] Specifically include: Step S1: a collecting assembly 10 is arranged below the core making and molding equipment in the brake drum production line, the molding sand generated during the core making and molding process is collected by the collecting assembly 10, and the molding sand is transferred to the conveying assembly 20 by the collecting assembly 10; Step S2: conveying the molding sand to the lifting assembly 30 through the conveying assembly 20; Step S3: The molding sand is transported to the storage assembly 40 through the lifting assembly 30, thereby completing the molding sand recovery.

[0055] Working principle of the present invention: When in use, the collecting component 10 of the present invention needs to be arranged below the core making and molding equipment in the brake drum production line. After the core making and molding start, the excess molding sand can enter the installation shell 103 from the collecting part 100 through the installation window 106, and then the molding sand in the installation shell 103 can be output from the discharge port 107 to the conveying component 20 through the spiral conveying structure 105. Then, the excess molding sand can be recovered to the storage component 40 through the conveying component 20 and the lifting component 30, thereby completing the recovery of the excess molding sand generated during the core making and molding process.

[0056] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A sand recovery device, characterized in that: The invention comprises a collecting assembly (10), a conveying assembly (20), a lifting assembly (30) and a storage assembly (40) which are sequentially connected and arranged, wherein the collecting assembly (10) comprises a collecting portion (100), a conveying portion (101) and a mounting portion (102), wherein the conveying portion (101) is arranged on the mounting portion (102), and the collecting portion (100) is arranged on the conveying portion (101); the collecting portion (100) is used to collect molding sand, the conveying portion (101) is used to convey molding sand, and the mounting portion (102) is used to mount the conveying portion (101) and the collecting portion (100); The conveying portion (101) comprises a mounting shell (103), a first driving structure (104) and a pair of spiral conveying structures (105); a mounting window (106) is provided at the top of the mounting shell (103); a collecting portion (100) is arranged at the top of the mounting shell (103) and is arranged in cooperation with the mounting window (106); a discharge port (107) is provided at the bottom of the mounting shell (103); the discharge port (107) is arranged in cooperation with the conveying assembly (20); a pair of spiral conveying structures (105) are arranged in the mounting shell (103) and are rotatably connected to the mounting shell (103); and a first driving structure (104) is arranged on the mounting portion (102) and is used to drive the spiral conveying structure (105); The spiral conveying structure (105) comprises a connecting rotating rod (108) and a spiral blade (109); the spiral blade (109) is fixedly arranged on the connecting rotating rod (108); both ends of the connecting rotating rod (108) respectively penetrate the mounting shell (103) and are fixedly connected to the mounting shell (103); and the first driving structure (104) is arranged in cooperation with the connecting rotating rods (108) in a pair of spiral conveying structures (105) and is used to drive the connecting rotating rods (108) to rotate.

2. A sand recovery device according to claim 1, characterized in that: The first driving structure (104) comprises a first gear (110), a second gear (111), a first driving motor (112), a driving wheel (113) and a driven wheel (114); the first gear (110) is fixedly arranged at one end of one of the spiral conveying structures (105) connected to a rotating rod (108); the second gear (111) is fixedly arranged at one end of the other spiral conveying structure (105) connected to a rotating rod (108); the first gear (110) and the second gear (111) are meshedly arranged; the first driving motor (112) is arranged on the mounting portion (102); the driving wheel (113) is fixedly arranged on an output shaft of the first driving motor (112); the driven wheel (114) is fixedly arranged at the end of one of the rotating rods (108); and transmission is carried out between the driving wheel (113) and the driven wheel (114) via a transmission belt (115).

3. A sand recovery device according to claim 2, characterized in that: The collecting portion (100) comprises a top frame (116), a bottom frame (117) and a connecting frame (118); the connecting frame (118) is arranged between the top frame (116) and the bottom frame (117); the top of the connecting frame (118) is fixedly connected to the top frame (116); the bottom of the connecting frame (118) is fixedly connected to the bottom frame (117); the bottom frame (117) is fixedly connected to the mounting shell (103) and is arranged in cooperation with the mounting window (106); the connecting frame (118) comprises a plurality of side guide plates arranged obliquely.

4. A sand recovery device according to claim 3, characterized in that: The mounting portion (102) comprises a mounting frame (119) and a mounting seat (120); the mounting housing (103) is arranged on the mounting frame (119) and is fixedly connected to the mounting frame (119); the discharge port (107) is located on one side of the mounting frame (119); the mounting seat (120) is fixedly arranged at the bottom of the mounting frame (119) and is arranged in cooperation with the first drive motor (112); and the first drive motor (112) is fixedly arranged on the mounting seat (120).

5. A sand recovery device according to claim 1 or 4, characterized in that: The conveying assembly (20) comprises a fixed frame (200), a second driving structure (201) and a belt conveying structure (202); the belt conveying structure (202) is arranged on the fixed frame (200); the second driving structure (201) is arranged on one side of the fixed frame (200) and is arranged in cooperation with the belt conveying structure (202) for driving the belt conveying structure (202).

6. The sand recovery device according to claim 5, characterized in that: The belt conveying structure (202) comprises a conveying belt (203) and a pair of rotating connecting rods (204). The pair of rotating connecting rods (204) are arranged on a fixed frame (200), and the two ends of the pair of rotating connecting rods (204) respectively penetrate the fixed frame (200) and are rotatably connected to the fixed frame (200) via a rotating bearing seat (205). Each rotating connecting rod (204) is provided with a pair of rotating gears (206). The conveying belt (203) is sleeved on the pair of rotating gears (206) on the pair of rotating connecting rods (204). The conveying belt (203) is provided with a meshing structure (207) meshed with the rotating gear (206). The conveying belt (203) is connected to the rotating gear (206) via the meshing structure (207).

7. The sand recovery device according to claim 6, characterized in that: The meshing structure (207) comprises a plurality of meshing blocks, one end of which is provided with a first connecting portion (208) and the other end of which is provided with a second connecting portion (209). The first connecting portion (208) and the second connecting portion (209) are provided with a matching plug-in structure (210). The first connecting portion (208) and the second connecting portion (209) can be plugged in through the plug-in structure (210) and fixed by a plug-in pin (211). Two adjacent meshing blocks are rotatably connected.

8. The sand recovery device according to claim 7, characterized in that: A support plate (217) is provided on the fixing frame (200) and is arranged in cooperation with the meshing structure (207). The meshing structure (207) is located on the support plate (217) and is slidably matched with the support plate (217).

9. The sand recovery device according to claim 8, characterized in that: The second driving structure (201) comprises a second driving motor (212), a gear reversing box (213), a driving gear (214) and a driven gear (215); the second driving motor (212) and the gear reversing box (213) are arranged on one side of the fixed frame (200); the output shaft of the second driving motor (212) is fixedly connected to the input shaft of the gear reversing box (213); the driving gear (214) is fixedly arranged on the output shaft of the gear reversing box (213); the driven gear (215) is fixedly arranged at the end of one of the rotating connecting rods (204); and the driving gear (214) and the driven gear (215) are connected via a transmission chain (216).

10. A sand recovery method, characterized in that: A sand recovery device as claimed in any one of claims 1 to 9 is used to recover excess molding sand during core making and molding.

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