CN211915473U - Automatic sand mold conveying system for bearing seat production - Google Patents

Abstract

The utility model belongs to bearing frame production application apparatus field relates to sand mold casting technology, especially relates to a bearing frame production is with automatic conveying system of sand mold. Including setting up the carriage on one side of the sand box forming machine and with carriage parallel arrangement's return frame, be provided with the conveying trolley on the carriage, the carriage is provided with transport mechanism with the both ends of returning the journey frame, the one end that the sand box forming machine was kept away from to the carriage is provided with sand box pushing mechanism, the utility model provides an automatic conveying system of sand mould is used in bearing frame production utilizes the carriage, the frame that returns the journey, conveying trolley, transport mechanism and sand box pushing mechanism that the cooperation set up, and the effectual sand mould that has realized comes out to the automatic of conveyer belt from the forming machine is carried, and the effectual current degree of automation problem of having solved, simultaneously, the utility model discloses simple structure, processing convenience are fit for using widely on a large scale.

Description

Automatic sand mold conveying system for bearing seat production

Technical Field

The utility model belongs to bearing frame production application apparatus field relates to sand mold casting technology, especially relates to a bearing frame production is with automatic conveying system of sand mold.

Background

The bearing pedestal is a device for fixedly mounting a bearing, and mainly plays a role in keeping the position of the bearing and supporting a load, and also plays a role in preventing foreign matters from invading the bearing and keeping the bearing well lubricated.

The method comprises the steps of firstly utilizing a forming machine to pack black sand into boxes, then conveying the black sand to a casting area, after casting is completed and cooled, conveying the sand boxes together to a conveying belt, separating sand from castings through a separating device, and then completing casting work of a bearing seat.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the not high technical problem of foretell bearing frame production sand mould conveying system degree of automation, provide a reasonable in design, simple structure and can realize the automatic bearing frame production sand mould automatic conveying system who carries of sand mould.

In order to achieve the above object, the present invention adopts the technical scheme that the present invention provides an automatic sand mold conveying system for bearing seat production, which comprises a conveying frame arranged on one side of a sand box forming machine and a return frame arranged in parallel with the conveying frame, wherein a conveying trolley is arranged on the conveying frame, a transfer mechanism is arranged at two ends of the conveying frame and the return frame, a sand box pushing mechanism is arranged at one end of the conveying frame far away from the sand box forming machine, the sand box pushing mechanism is arranged at one end of the transfer mechanism far away from the conveying frame, the transfer mechanism comprises a transfer frame arranged in a perpendicular state with the conveying frame and a transfer trolley arranged on the transfer frame and used for fixing the conveying trolley, a walking mechanism for walking the transfer trolley is arranged on the transfer frame, the sand box pushing mechanism comprises a pushing frame, the pushing frame comprises door type frames arranged on two sides and a cross bar arranged between the door type frames, the horizontal pole sets up the one end at door type frame top, be provided with door type carriage between the door type frame, the both sides of door type carriage set up the slider, be provided with on the door type frame with slider matched with slide, be provided with the gliding slip cylinder of drive door type carriage on the horizontal pole, be provided with the lift cylinder on the door type carriage, the power end of lift cylinder sets up down, the power end of lift cylinder is connected with push plate, still be provided with the delivery board between the door type frame, the bottom of delivery board is provided with the pivot, the pivot is rotated and is set up on two door type frames, the one end that push frame one side and carriage kept away from the propelling movement frame still is provided with the power unit that is used for pushing the travelling bogie to carriage or return journey frame.

Preferably, the transfer trolley comprises a frame of the transfer trolley and a transfer platform arranged above the frame, the transfer platform comprises a fixed plate arranged above the frame and rails arranged on two sides of the fixed plate, the rails are arranged at a vertical angle with the traveling direction of the frame, a limiting mechanism for conveying the trolley is arranged on the fixed plate, the limiting mechanism comprises a rotating shaft rotatably arranged on the fixed plate and limiting rods symmetrically arranged on the rotating shaft, one end of each limiting rod, far away from the rotating shaft, is provided with a limiting shaft, the limiting shaft is arranged between the two limiting rods, the limiting shaft is sleeved with a rotating wheel, the middle part of each limiting rod is further provided with a limiting rod, the limiting rod is arranged between the two limiting rods, a fixed rod is arranged on the limiting rod, the fixed rod penetrates through the limiting rod and is fixedly connected with the fixed plate, and the fixed rod is sleeved with a rebound spring, the rebound spring is arranged between the fixed plate and the limiting rod.

Preferably, the traveling mechanism comprises a driving motor arranged at one end of the transfer frame and a driven gear arranged at the other end of the transfer frame, the driving motor is sleeved with a driving gear, driving chains are arranged on the driving gear and the driven gear, and the driving chains are fixedly connected with the two ends of the frame.

Preferably, a guide frame is further arranged between the lifting cylinder and the pushing plate, and the guide frame is arranged on the door-shaped sliding frame in a sliding mode.

Preferably, one end of the conveying plate is provided with a supporting frame, one end of the supporting frame, which is close to the cross rod, is arranged, the supporting frame is arranged below the conveying plate, and the supporting frame and the conveying plate are in contact arrangement.

Preferably, the conveying trolley comprises a placing plate and an axle arranged below the placing plate, the axle is symmetrically and rotatably arranged at the front end and the rear end of the placing plate, walking wheels are arranged at the two ends of the axle, and a track matched with the walking wheels is arranged on the conveying frame or the return frame.

As preferred, one side of carriage still is provided with other carriages of parallel arrangement, be provided with supplementary transport mechanism between carriage and other carriages, still be provided with the supplementary carriage that sets up with the carriage cooperation between transport mechanism and the carriage, supplementary carriage sets up between transport mechanism and supplementary transport mechanism, supplementary carriage and return journey frame parallel arrangement, one side that supplementary transport mechanism kept away from other carriages is provided with power unit.

Preferably, the other transportation racks are arranged at intervals on one side of the transportation rack.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model provides a bearing frame production is with automatic conveying system of sand mould utilizes carriage, return frame, transport trolley, transport mechanism and the sand box push mechanism that the cooperation set up, and the effectual sand mould that has realized comes out to the automatic of conveyer belt from the make-up machine is carried, the effectual problem that has solved current degree of automation is not high, simultaneously, the utility model discloses simple structure, processing convenience are fit for using widely on a large scale.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of an automatic sand mold conveying system for bearing block production provided in embodiment 1;

FIG. 2 is a schematic structural view of a flask pushing mechanism provided in embodiment 1;

FIG. 3 is a schematic structural view of the transfer mechanism provided in example 1;

FIG. 4 is a schematic structural view of the transfer cart provided in example 1;

FIG. 5 is a schematic structural view of a transport state provided in example 1;

FIG. 6 is a schematic structural view of a transport cart provided in example 1;

FIG. 7 is a schematic view of the conveying cart provided in example 1 at another angle;

in the above figures, 1, a conveying frame; 2. a return frame; 3. a transfer mechanism; 31. a transfer frame; 32. a drive motor; 33. a drive gear; 34. a driven gear; 35. a drive chain; 4. a transfer trolley; 41. a frame; 42. a transfer slide block; 43. a fixing plate; 44. a track; 45. a travel limiting mechanism; 451. a rotating shaft; 452. A travel limiting rod; 453. a travel limiting shaft; 454. a rotating wheel; 455. a limiting rod; 456. fixing the rod; 457. a rebound spring; 5. a sand box pushing mechanism; 51. a gate frame; 52. a cross bar; 53. a door-shaped sliding frame; 54. a slider; 55. a lifting cylinder; 56. a push plate; 57. a guide frame; 58. a slide cylinder; 59. a conveying plate; 591. a rotating shaft; 6. a conveying trolley; 61. placing the plate; 62. an axle; 63. a traveling wheel; 64. a groove; 7. a power mechanism; 71. a power frame; 72. a power cylinder; 8. other transportation racks; 9. an auxiliary transfer mechanism; 10. and (5) an auxiliary conveying frame.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 7, this embodiment is directed to providing an automatic conveying system for a sand mold for producing bearing blocks, which can realize automatic conveying, and includes a conveying frame 1 provided on one side of a sand box molding machine and a return frame 2 provided in parallel with the conveying frame 1, and the sand box molding machine belongs to a resin sand molding machine and is a field product, and therefore, in this embodiment, detailed description is omitted. The conveying frame 1 mainly functions to convey the sand box to a casting area, and convey the sand box to a conveying belt after casting and cooling, and the return frame 2 mainly functions to return the conveying trolley after conveying to one side of the sand box forming machine, in the embodiment, the conveying frame 1 and the return frame 2 are arranged in a rectangular frame shape, and a rail 44 is arranged above the conveying frame, and in the embodiment, the rail 44 is an i-shaped steel.

In order to realize the transportation of travelling bogie between carriage 1 and return frame 2, be provided with transport mechanism 3 at carriage 1 and the both ends of returning frame 2, specific saying so, transport mechanism 3 includes and is the transport frame 31 that the vertical state set up and sets up the transport bogie 4 that is used for fixed travelling bogie on transport frame 31 with carriage 1, and transport frame 31 is the same with carriage 1, all is the setting of cuboid frame form.

In order to realize the stable and automatic fixing of the transporting trolley on the transporting trolley 4, the transporting platform provided by this embodiment includes a fixing plate 43 disposed above the frame 41 and rails 44 disposed on both sides of the fixing plate 43, and the rails 44 mainly realize the stable transition of the transporting trolley, for this reason, the rails 44 are disposed at a vertical angle with the traveling direction of the frame 41, and of course, the rails 44 are the same as the rails 44 on the transporting rack 1 and the return rack 2, and have the same height.

The transport trolley is placed on the transfer trolley 4, considering that the transport trolley can be fixed and can move rapidly under the action of external force, in this embodiment, the fixing plate 43 is provided with the restriction mechanism 45 for transporting the trolley, and considering that the restriction mechanism 45 can achieve the purpose of being active and static, for this purpose, the restriction mechanism 45 provided in this embodiment includes a rotating shaft 451 rotatably arranged on the fixing plate 43 and restriction rods 452 symmetrically arranged on the rotating shaft 451, in this embodiment, the rotating shaft 451 is fixed on the fixing plate 43 through bearings and bearing seats arranged at both ends of the rotating shaft 451, the restriction rods 452 are two parallel metal plates fixed on the rotating shaft 451, a restriction shaft 453 is arranged at one end of the restriction rod 452 far from the rotating shaft 451, the restriction shaft 453 is arranged between the two restriction rods 452, the main function of the restriction shaft 453 is the purpose of restriction, however, considering that the transportation cart needs to be able to travel by an external force, the travel limiting shaft 453 is sleeved with a rotating wheel 454, in this embodiment, the rotating wheel 454 is a bearing, and the travel limiting shaft 453 is sleeved with 4 bearings, so that the transportation cart can be separated from the travel limiting shaft 453 by the rotation of the bearings.

In order to realize the restriction of the transport trolley by the restriction shaft 453 and the release of the transport trolley by the turning wheel 454, a limiting rod 455 is also arranged in the middle of the limiting rod 452, the limiting rod 455 is also a square metal plate, which is disposed in parallel with the fixed plate 43, a stopper bar 455 is disposed between the two stopper bars 452, the limit rod 455 is provided with a fixing rod 456, specifically, the limit rod 455 is provided with a through hole, the fixing rod 456 passes through the through hole to be fixedly connected with the fixing plate 43, a resilient spring 457 is sleeved on the fixing rod 456, and the resilient spring 457 is disposed between the fixing plate 43 and the stopper 455, so that, under the action of the rebound spring 457, the arrangement of the travel limiting rod 452 in an inclined state is realized, the blocking of the conveying trolley is met, and when the transport trolley is under the external force, the rotating wheel 454 presses the rebound spring 457 downwards, so that the travel limiting shaft 453 cannot block the transport trolley, and the transport trolley is separated from the transfer trolley 4.

Considering that the transfer cart 4 needs to maintain the stability of the transport cart during traveling, the limiting mechanisms 45 are provided at both ends of the fixed plate 43 with respect to the cart. In this way, the transport carriages are fixed in tandem by the travel limiting mechanism 45.

In order to ensure the working stability of the travel limiting mechanism 45, the fixing rods 456 are symmetrically arranged on the limiting rod 455, and the fixing rods 456 are arranged close to the travel limiting rod 452. In this way, the stability of the elevation of the restricting shaft 453 is ensured by the arrangement of the two fixing bars 456, and the working effect is ensured.

In order to realize the movement of the transfer trolley 4 on the transfer frame 31, the traveling mechanism for driving the transfer trolley 4 to travel comprises a driving motor 32 arranged at one end of the transfer frame 31 and a driven gear 34 arranged at the other end of the transfer frame 31, a driving gear 33 is sleeved on the driving motor 32, driving chains 35 are arranged on the driving gear 33 and the driven gear 34, and the driving chains 35 are fixedly connected with two ends of a frame 41 of the transfer trolley 4, so that the driving chains 35 and the transfer trolley 4 form an annular structure, and the transfer trolley 4 can move back and forth on the transfer frame 31 under the condition that the driving motor 32 rotates forwards or backwards. The main purpose of chain conveying is to ensure the accuracy of the stop position of the transfer trolley 4 by using the accuracy and stability of chain conveying.

In order to ensure the stability of the movement of the transfer trolley 4, the transfer slide way is arranged on the transfer frame 31, the transfer slide block 42 matched with the transfer slide way is arranged on the frame 41 of the transfer trolley 4, and the transfer slide way not only plays the purpose of stabilizing the transfer trolley 4, but also plays the role of guiding.

In order to realize the purpose of conveying the trolley to the return frame 2 or the conveying frame 1 and providing the required external force, for this purpose, the power mechanism 7 provided in this embodiment includes a power frame 71 and a power cylinder 72 disposed on the power frame 71, and the power end of the power cylinder 72 works, so that the trolley is automatically conveyed to the return frame 2 or the conveying frame 1 under the action of the pushing cylinder.

In consideration of the need to convey the flasks to the conveyor belt, in order to separate the flasks from the conveying trolley, the embodiment is provided with a flask pushing mechanism 5 at one end of the conveying frame 1 away from the flask molding machine, and the flask pushing mechanism 5 is arranged at one end of the transfer mechanism 3 away from the conveying frame 1.

In order to separate the sand boxes on the conveying trolley from the conveying trolley, the sand box pushing mechanism 5 comprises a pushing frame, specifically, the pushing frame comprises door-shaped frames 51 arranged on two sides and a cross rod 52 arranged between the door-shaped frames 51, and the cross rod 52 is arranged at one end of the top of the door-shaped frame 51, so that the whole frame forms a square structural design, and the main purpose of the design is to conveniently arrange a part of the structure of the transferring mechanism 3 in the frame and facilitate transferring and conveying.

The sand box conveying trolley is characterized in that a gate-type sliding frame 53 is arranged between gate-type frames 51, sliding blocks 54 are arranged on two sides of the gate-type sliding frame 53, a slide way matched with the sliding blocks 54 is arranged on the gate-type frames 51, a sliding cylinder 58 driving the gate-type sliding frame 53 to slide is arranged on a cross bar 52, therefore, the gate-type sliding frame 53 can move back and forth along the slide way under the action of the sliding cylinder 58, a lifting cylinder 55 is arranged on the gate-type sliding frame 53, the power end of the lifting cylinder 55 is arranged downwards, a push plate 56 is connected to the power end of the lifting cylinder 55, the lifting cylinder 55 is used for lowering the push plate 56 to the rear of a sand box through the arrangement, then the sliding cylinder 58 pushes the whole gate-type sliding frame 53 to move forwards, and the sand box is pushed forwards due to the fact that the push plate.

In order to avoid the movement of the conveying trolley in the pushing process and reduce the travelling distance of the conveying trolley, a conveying plate 59 is arranged between the portal frames 51, the conveying plate 59 has two functions, one is used for tightly abutting against the conveying trolley to avoid the movement of the conveying trolley, and the other is used for realizing the conveying of the sand boxes to the last section of the conveying belt. Thus, when the sand box moves to the conveying plate 59, the sand box tilts like a seesaw under the action of gravity, falls onto the conveying belt, and is crushed under the gravity of falling, the bearing seat in the sand box is exposed, and subsequent separation is facilitated. Of course, one end of the conveying plate 59 close to the conveying trolley needs to be supported, the bottom structure of the conveying trolley can be directly utilized for supporting, and a supporting mechanism can also be separately arranged. In the present embodiment, the contact setting means that no fixing is performed. By the arrangement of the supporting frame, the sand box is prevented from falling down on one side of the cross rod 52.

In order to ensure the stability of the pushing plate 56 in traveling, a guide frame 57 is further disposed between the lifting cylinder 55 and the pushing plate 56, the guide frame 57 is slidably disposed on the door-shaped sliding frame 53, in this embodiment, both sides of the guide frame 57 are disposed in cooperation with the door-shaped sliding frame 53, and of course, the guide frame 57 may also be guided and fixed by a guide post, which belongs to a structure commonly used in a lifting system, so that in this embodiment, detailed description is omitted.

In order to ensure the stability of the transportation trolley and the better cooperation with the transportation trolley 4, the transportation trolley 6 provided by the embodiment comprises a placing plate 61 and an axle 62 arranged below the placing plate 61, the placing plate 61 is a square steel plate, a bearing seat is arranged below the steel plate, the axle 62 is cylindrical, thus, the rotation of the axle 62 is realized under the cooperation of the bearing seat, in order to ensure the stability of the transportation trolley 6 in operation, the axle 62 is symmetrically and rotatably arranged at the front end and the rear end of the placing plate 61, in order to facilitate the transportation trolley 6 to walk, walking wheels 63 are arranged at the two ends of the axle 62, and a transportation track matched with the walking wheels 63 is arranged on the transportation frame 1.

In order to avoid the movement of the sand boxes on the placing plate 61, the placing plate 61 is provided with the criss-cross grooves 64, so that a plurality of friction bulges are formed on the placing plate, and the sand boxes are prevented from moving due to inertia in the pushing process of the conveying trolley.

Through the arrangement, after the sand boxes are placed on the conveying trolley 6, the conveying trolley 6 is pushed by the power air cylinder 72 to move along the rail 44, due to the fact that the thrust of the power air cylinder 72 is limited, the conveying trolley 6 which is connected in a front-back mode is used for transmitting the thrust, the conveying trolley 6 can move continuously, conveying work of the sand boxes is further completed, when transfer is needed, the conveying trolley 6 is pushed onto the transfer trolley 4 under the action of external force, and the conveying trolley 6 is fixed under the matching of the limiting mechanism 45 and the axle 62, and the transfer work is completed.

Considering that the sand box needs to stay in the casting area for a period of time during the conveying process, and in order to avoid stopping production of other equipment during the stay period, the other conveying frames 8 arranged in parallel are further arranged on one side of the conveying frame 1, in the embodiment, two other conveying frames 8 are arranged according to the production speed of the sand box forming machine and the cooling speed of casting, three conveying lines are formed, in order to enable the conveying trolley 6 to reach the conveying frame 1 and the other conveying frames 8, for this purpose, the auxiliary conveying mechanism 9 is arranged between the conveying frame 1 and the other conveying frames 8, the other end of the conveying frame 31 of the conveying mechanism 3 is extended, and the structure of the conveying mechanism 3 is consistent with that of the auxiliary conveying mechanism 9.

Because the setting of supplementary transport mechanism 9, just so make carriage 1 unable setting in one side of make-up machine, for this reason, still be provided with the supplementary carriage 10 that sets up with carriage 1 cooperation between transport mechanism 3 and carriage 1, supplementary carriage 10 sets up between transport mechanism 3 and supplementary transport mechanism 9, supplementary carriage 10 and return journey frame 2 parallel arrangement, thus, utilize supplementary carriage 10 and supplementary transport mechanism 9 to realize sending the sand box of make-up machine production to carriage 1 and supplementary carriage 10 respectively, of course, still need to set up power unit 7 in the one side of supplementary transport mechanism 9 keeping away from other carriages 1.

Through foretell setting, the sand box of sand box make-up machine production transports respectively to carriage and other carriages through auxiliary conveyor frame 10, supplementary transport mechanism 9, after the casting is accomplished in the casting district, continue to move, transports sand box pusher 5 department through transport mechanism 3, realize the separation back of sand box and transport trolley 6, transport trolley 6 returns to on the return frame 2 through power unit 7, transport mechanism 3, returns to on the auxiliary conveyor frame 10 through transport mechanism 3 and power unit 7 again, realize automatic cycle and carry.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (8)

1. The automatic sand mold conveying system for bearing seat production is characterized by comprising a conveying frame arranged on one side of a sand box forming machine and a return frame arranged in parallel with the conveying frame, wherein a conveying trolley is arranged on the conveying frame, transfer mechanisms are arranged at two ends of the conveying frame and the return frame, a sand box pushing mechanism is arranged at one end, away from the sand box forming machine, of the conveying frame, the sand box pushing mechanism is arranged at one end, away from the conveying frame, of the transfer mechanism, the transfer mechanism comprises a transfer frame and a transfer trolley, the transfer frame is perpendicular to the conveying frame, the transfer trolley is arranged on the transfer frame and used for fixing the conveying trolley, a travelling mechanism used for travelling the transfer trolley is arranged on the transfer frame, the sand box pushing mechanism comprises a pushing frame, the pushing frame comprises door-shaped frames arranged on two sides and a cross rod arranged between the door-shaped frames, the cross rod is arranged at one end of the top of the door-shaped frames, be provided with a type carriage between the door type frame, the both sides of door type carriage set up the slider, be provided with on the door type frame with slider matched with slide, be provided with the gliding sliding cylinder of drive door type carriage on the horizontal pole, be provided with the lift cylinder on the door type carriage, the power end of lift cylinder sets up down, the power end of lift cylinder is connected with push plate, still be provided with the delivery board between the door type frame, the bottom of delivery board is provided with the pivot, the pivot is rotated and is set up on two door type frames, the one end that propelling movement frame one side and delivery frame kept away from the propelling movement frame still is provided with and is used for pushing the travelling bogie to the delivery frame or returns the power unit of journey frame.

2. The automatic sand mold conveying system for bearing seat production as claimed in claim 1, wherein the transfer trolley comprises a frame and a transfer platform arranged above the frame, the transfer platform comprises a fixed plate arranged above the frame and rails arranged on both sides of the fixed plate, the rails are arranged at a perpendicular angle to the traveling direction of the frame, a limiting mechanism for conveying the trolley is arranged on the fixed plate, the limiting mechanism comprises a rotating shaft rotatably arranged on the fixed plate and limiting rods symmetrically arranged on the rotating shaft, a limiting shaft is arranged at one end of the limiting rod far from the rotating shaft, the limiting shaft is arranged between the two limiting rods, rotating wheels are sleeved on the limiting shaft, a limiting rod is further arranged in the middle of the limiting rod, the limiting rod is arranged between the two limiting rods, a fixed rod is arranged on the limiting rod, the dead lever runs through gag lever post and fixed plate fixed connection, the cover is equipped with the resilience spring on the dead lever, the resilience spring sets up between fixed plate and gag lever post.

3. The automatic sand mold conveying system for the bearing seat production as claimed in claim 2, wherein the traveling mechanism comprises a driving motor arranged at one end of the transfer frame and a driven gear arranged at the other end of the transfer frame, the driving motor is sleeved with a driving gear, driving chains are arranged on the driving gear and the driven gear, and the driving chains are fixedly connected with two ends of the frame.

4. The automatic conveying system for the sand mold for the bearing seat production as claimed in claim 3, wherein a guide frame is further arranged between the lifting cylinder and the pushing plate, and the guide frame is slidably arranged on the door-shaped sliding frame.

5. The automatic conveying system for the sand molds for the bearing seat production as claimed in claim 4, wherein a support frame is arranged at one end of the conveying plate, the support frame is arranged close to one end of the cross rod, the support frame is arranged below the conveying plate, and the support frame and the conveying plate are arranged in a contact manner.

6. The automatic sand mold conveying system for the bearing seat production as claimed in claim 5, wherein the conveying trolley comprises a placing plate and an axle arranged below the placing plate, the axle is symmetrically and rotatably arranged at the front end and the rear end of the placing plate, walking wheels are arranged at the two ends of the axle, and a track matched with the walking wheels is arranged on the conveying frame or the return frame.

7. The automatic sand mold conveying system for bearing seat production as claimed in claim 6, wherein other parallel conveying frames are further arranged on one side of the conveying frame, an auxiliary conveying mechanism is arranged between the conveying frame and the other conveying frames, an auxiliary conveying frame matched with the conveying frame is further arranged between the conveying mechanism and the conveying frame, the auxiliary conveying frame is arranged between the conveying mechanism and the auxiliary conveying mechanism, the auxiliary conveying frame is parallel to the return frame, and a power mechanism is arranged on one side of the auxiliary conveying mechanism away from the other conveying frames.

8. The automatic conveying system for the sand molds for the production of bearing seats as claimed in claim 7, wherein the other conveying frames are arranged at intervals on one side of the conveying frame.

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