CN213944864U - Iron mold sand-coated sand box pressing device - Google Patents

Abstract

The utility model relates to the technical field of casting equipment, in particular to a pressing device for an iron mold sand-coated sand box, which comprises a frame and a roller frame positioned on the frame, wherein a pressing mechanism is fixedly arranged on the frame and comprises a cross beam, two hydraulic cylinders are arranged on the cross beam, piston rods of the two hydraulic cylinders movably penetrate through the cross beam and then are fixedly connected with a pressing block, two sides of the pressing block movably penetrate through the frame and then are fixedly connected with a connecting arm, a key pin is transversely inserted into the bottom of the connecting arm, a first notch for accommodating the up-and-down movement of the key pin is formed in the frame, the key pin penetrates through the first notch and then is connected with the roller frame, and a damping seat is also arranged between the bottom of the roller frame and the frame; the bottom surface of the frame, which is positioned at the lower edges of the two sides of the lower box, is provided with a bearing strip. The utility model discloses a hold-down mechanism is when compressing tightly the sand box, and the atress direction can not be from the box from top to bottom, avoids with pressure conduction on the running roller, has improved the life of roll table frame.

Description

Iron mold sand-coated sand box pressing device

Technical Field

The utility model relates to a casting equipment technical field specifically is an iron mold sand-lined sand box closing device.

Background

The process flow of sand coating of the iron mold comprises the following steps: the method is characterized in that an upper sand box and a lower sand box are respectively subjected to sand shooting, box stripping, downward turning, box assembling, pouring, heat preservation, box opening and the like, a plurality of box assembling modes are available in a box assembling process, such as manual box assembling and mechanical box assembling which are manually performed by adopting a screw rod, manual labor action is required for manual box assembling, a task of a worker is heavy due to poor working environment, the mechanical box assembling is generally that a sand box rolls on a roller way to the position below a box assembling mechanism to compress the box, and the defect that when the box is assembled, the compression mechanism is stressed in a direction from the upper part to the lower part of the box body, and finally pressure is transmitted on a roller, so that the service life of the roller way can be shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an iron mold sand-lined sand box closing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pressing device of an iron mold sand-coated sand box comprises a rack and a roller bed frame positioned on the rack, wherein a pressing mechanism is fixedly arranged on the rack and comprises a cross beam fixedly arranged at the top of the rack, two hydraulic cylinders are arranged on the cross beam, piston rods of the two hydraulic cylinders movably penetrate through the cross beam and then are fixedly connected with a pressing block, the pressing block is of a 20866type structure and spans over an upper box and abuts against the upper edges of two sides of the upper box, connecting arms which are longitudinally distributed are fixedly connected with two sides of the pressing block after movably penetrating through the rack, a key pin is transversely inserted into the bottom of each connecting arm, a first notch for accommodating the key pin to move up and down is formed in the rack, the key pin is connected with the roller bed frame after penetrating through the first notch, and a damping seat is further arranged between the bottom of the roller bed frame and the rack;

the sand box is characterized in that a plurality of roller way bearing blocks are fixedly arranged on the roller way frame, one surface of each roller way bearing block, which is close to the sand box, is in running fit with a roller wheel which can be attached to the bottom surface of the lower box, and the bottom surfaces of the machine frame, which are positioned at the lower edges of the two sides of the lower box, are formed with bearing strips.

Optionally, one side of each roller way bearing block, which is far away from the sand box, is provided with a chain wheel which is coaxially connected with the corresponding roller wheel, the chain wheels are synchronously driven by a chain, and one of the chain wheels is driven by a motor to operate.

Optionally, the rotating speed of the roller is synchronous with that of the external roller way to be butted.

Optionally, a second notch is formed in the rack, the damping seat is arranged in the second notch, and a supporting plate used for being mounted at the top of the damping seat is fixedly connected to the bottom of the roller bed frame.

Optionally, the shock attenuation seat is including setting firmly the spring holder of bottom surface in the second notch, the inside spring that is provided with of spring holder, the top surface just is located the bearing seat that the rigid coupling was laminated mutually with the spring directly over the spring holder in the second notch, the spring holder is inside to be set firmly the dead lever, just the dead lever runs through behind bearing seat and the backup pad and the spiro union has the bolt.

Compared with the prior art, the utility model provides an iron mold covers sand box closing device possesses following beneficial effect:

1. the utility model discloses a hold-down mechanism when compressing tightly the sand box, the piston rod of accessible pneumatic cylinder promotes the compact heap, and the transmission gives the roll table frame when the compact heap descends, makes the roll table frame descend, and the sand box acts on the bearing strip, reaches the state that the sand box breaks away from the roll table frame completely, compresses tightly the mould assembling, has realized that hold-down mechanism when compressing tightly the sand box, and the direction of force can not be from the box from top to bottom, avoids transmitting pressure on the running roller, has improved the life of roll table frame;

2. the utility model discloses set up the shock attenuation seat in the second notch, when the pneumatic cylinder compressed tightly the sand box and finishes and shrink, the roll rack can rise by oneself and resume initial condition under the lifting effect of shock attenuation seat, and whole compressing tightly moves simple and efficient.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a left side view of the present invention;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

In the figure: 1. a frame; 101. a first notch; 102. a second notch; 103. a load bearing bar; 2. a hold-down mechanism; 3. a cross beam; 4. a hydraulic cylinder; 5. a compression block; 6. a connecting arm; 7. a key pin; 8. a roller bed frame; 801. a support plate; 9. a shock absorbing seat; 901. a spring seat; 902. a spring; 903. a load bearing seat; 904. fixing the rod; 10. a roller way bearing seat; 11. a roller; 12. a sand box; 121. feeding the box; 1211. an upper edge; 122. discharging the box; 1221. a lower edge.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1-4, a sand-lined iron mold sand box pressing device comprises a frame 1 and a roller bed frame 8 located on the frame 1, a pressing mechanism 2 for pressing an upper box 121 and a lower box 122 of a sand box 12 is fixedly arranged on the frame 1, wherein an upper edge 1211 and a lower edge 1221 which are in a convex structure are respectively formed on two sides of the upper box 121 and the lower box 122, the pressing mechanism 2 comprises a cross beam 3 fixedly arranged on the top of the frame 1, two hydraulic cylinders 4 are arranged on the cross beam 3, pressing blocks 5 are fixedly connected after piston rods of the two hydraulic cylinders 4 movably penetrate through the cross beam 3, the pressing blocks 5 are in a 20866type structure, the pressing block spans the upper box 121 and abuts against the upper edges 1211 on two sides of the upper box 121, connecting arms 6 which are longitudinally distributed are fixedly connected after the two sides of the pressing blocks 5 movably penetrate through the frame 1, a key pin 7 is transversely inserted in the bottom of the connecting arms 6, a first notch 101 for accommodating the key pin 7 is formed in the frame 1, the key pin 7 penetrates through the first notch 101 and then is in key connection with the roller way frame 8, and a damping seat 9 is further arranged between the bottom of the roller way frame 8 and the rack 1;

a plurality of roller way bearing blocks 10 are fixedly arranged on the roller way frame 8, a roller 11 which can be attached to the bottom surface of the lower box 122 is rotationally matched with one surface of each roller way bearing block 10 close to the sand box 12, and a bearing strip 103 is formed on the bottom surface of the lower edge 1221 of the rack 1, which is positioned on the two sides of the lower box 122. One side of each roller way bearing seat 10, which is far away from the sand box 12, is provided with a chain wheel which is coaxially connected with the corresponding roller wheel 11, the chain wheels are synchronously driven by a chain, one of the chain wheels is driven by a motor to run, and the rotating speed of the roller wheel 11 is synchronous with the rotating speed of the roller way which needs to be butted with the outside.

In a specific embodiment, the rack 1 is provided with a second notch 102, the shock absorption seat 9 is arranged in the second notch 102, and the bottom of the roller bed frame 8 is fixedly connected with a support plate 801 for being mounted on the top of the shock absorption seat 9. The shock absorption seat 9 comprises a spring seat 901 fixedly arranged on the inner bottom surface of the second notch 102, a spring 902 is arranged inside the spring seat 901, a bearing seat 903 attached to the spring 902 is fixedly connected to the inner top surface of the second notch 102 and located right above the spring seat 901, a fixing rod 904 is fixedly arranged inside the spring seat 901, and the fixing rod 904 penetrates through the bearing seat 903 and a supporting plate 801 and is screwed with a bolt. When the sand box 12 naturally falls on the roller 11, the bearing seat 903 supports the sand box 12, and a space is reserved between the lower edge 1221 of the lower box 122 and the bearing strip 103.

When the device is used, the hydraulic cylinder 4 is started, the piston rod of the hydraulic cylinder drives the pressing block 5 to press downwards, the pressing block 5 drives the roller way frame 8 to descend through the connecting arm 6 and the key pin 7 while pressing down, so that the sand box 12 is separated from the roller 11, the lower edge 1221 of the lower box 122 is lapped on the bearing strip 103 on the rack 1, then the pressing block 5 abuts against the upper edge 1211 of the upper box 121 and presses and closes the upper box and the lower box 122, after the sand box 12 is pressed, the piston rod drives the pressing block 5 to ascend, the supporting plate 801 drives the roller way frame 8 to ascend through the elasticity of the shock absorption seat 9, the initial state is recovered, and when the box is pressed and closed for multiple times, the operation is repeated and circulated according to the steps.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an iron mold sand-lined sand box closing device, includes frame (1) and roller bed (8) that are located frame (1), its characterized in that: the roller table frame is characterized in that a pressing mechanism (2) is fixedly arranged on the frame (1), the pressing mechanism (2) comprises a cross beam (3) fixedly arranged at the top of the frame (1), two hydraulic cylinders (4) are arranged on the cross beam (3), piston rods of the two hydraulic cylinders (4) movably penetrate through the cross beam (3) and then are fixedly connected with pressing blocks (5), each pressing block (5) is of a 20866type structure, the pressing blocks span an upper box (121) and abut against the upper edges (1211) of the two sides of the upper box (121), connecting arms (6) longitudinally distributed are fixedly connected with the two sides of each pressing block (5) after movably penetrating through the frame (1), a key pin (7) is transversely inserted into the bottom of each connecting arm (6), a first notch (101) for accommodating the key pin (7) to move up and down is formed in the frame (1), and the key pin (7) penetrates through the first notch (101) and then is connected with the roller table frame (8), a damping seat (9) is also arranged between the bottom of the roller bed frame (8) and the rack (1);

the roller bed frame (8) is fixedly provided with a plurality of roller bed bearing seats (10), one surface of each roller bed bearing seat (10) close to the sand box (12) is in running fit with a roller (11) which can be attached to the bottom surface of the lower box (122), and the bottom surface of the frame (1) positioned at the lower edges (1221) at the two sides of the lower box (122) is molded with a bearing strip (103).

2. The pressing device of the sand-lined iron mold sand box according to claim 1, wherein: and chain wheels which are coaxially connected with the corresponding rollers (11) are arranged on one surface, away from the sand box (12), of each roller way bearing seat (10), the chain wheels are synchronously driven by chains, and one chain wheel is driven by a motor to run.

3. The pressing device of the sand-lined iron mold sand box according to claim 2, wherein: the rotating speed of the roller (11) is synchronous with that of an external roller way needing to be butted.

4. The pressing device of the sand-lined iron mold sand box according to claim 1, wherein: the roller bed is characterized in that a second notch (102) is formed in the rack (1), the shock absorption seat (9) is arranged in the second notch (102), and a supporting plate (801) used for being mounted at the top of the shock absorption seat (9) is fixedly connected to the bottom of the roller bed frame (8).

5. The pressing device of the sand-lined iron mold sand box according to claim 4, wherein: the shock absorption seat (9) comprises a spring seat (901) fixedly arranged on the inner bottom surface of the second notch (102), a spring (902) is arranged inside the spring seat (901), a bearing seat (903) attached to the spring (902) is fixedly connected to the inner top surface of the second notch (102) and located right above the spring seat (901), a fixing rod (904) is fixedly arranged inside the spring seat (901), and the fixing rod (904) penetrates through the bearing seat (903) and the supporting plate (801) and is connected with a bolt in a threaded mode.

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