Moisture-proof sand bonding and compacting sand suction mold

Abstract

The invention discloses a damp-proof sand bonding and compacting sand suction mold, and belongs to the technical field of molds, the damp-proof sand bonding and compacting sand suction mold comprises a supporting seat, a compacting and limiting mechanism, a cooling mechanism and an unlocking mechanism, a supporting table is fixedly mounted on the upper surface of the supporting seat, the compacting and limiting mechanism is arranged on the supporting table, and a pressure bearing seat coaxially and movably penetrates through the supporting seat; the lower end of the pressure-bearing seat is connected with a cooling mechanism, an unlocking mechanism is further arranged at the lower end of the pressure-bearing seat and used for enabling the pressing limiting mechanism to loosen the mold, and a limiting block is arranged on the inner top face of the supporting table and used for limiting the maximum downward moving height of the pressure-bearing seat. According to the mold, the mold base and the mold head can be conveniently and rapidly taken down, an external water pump is not needed when the mold base and the mold head are cooled through the self weight of the mold base and the mold head, and then the cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and specifically to a moisture-proof sand-bonding and compaction sand-eating mold. Background Technique

[0002] Mold technology plays a crucial role in the manufacturing industry and is widely used in many fields such as automobiles, machinery, electronics, aerospace, etc. As a commonly used mold type in the casting industry, sand-eating molds have unique advantages when producing various complex-shaped castings; When the existing moisture-proof sand-bonding and compaction sand-eating molds are in use, the following technical problems still exist, such as: When the existing moisture-proof sand-bonding and compaction sand-eating molds are in use, they are clamped and limited from its side and top surfaces by the self-weight of the mold. For example, a sand-eating casting mold for moisture-proof sand-bonding and compaction with the publication number CN111872320B clamps and positions the mold through the self-weight of the mold, enabling a linkage pressing and rotating mechanism and a horizontal clamping and positioning mechanism to clamp and position the mold. Although this method can ensure the accuracy of its position, when the mold needs to be removed, the process is rather cumbersome, thus greatly reducing the work efficiency. In addition, when the existing moisture-proof sand-bonding and compaction sand-eating molds are in use, an external water pump is required to spray cooling water on the surface of the mold to achieve the cooling effect on the mold. For example, the above-mentioned disclosed technical solution uses a circulating acceleration cooling mechanism for cooling. This method is not conducive to cost reduction; Therefore, a moisture-proof sand-bonding and compaction sand-eating mold is needed to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a moisture-proof sand-bonding and compaction sand-eating mold to solve the problems in the above background technique that the existing moisture-proof sand-bonding and compaction sand-eating molds are not convenient for quickly removing the mold and are not convenient for reducing the cost of cooling the mold.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A moisture-proof sand-bonding and compaction sand-eating mold includes a support base and a support table installed on the upper surface of the support base. A pressing and limiting mechanism is arranged on the support table. A pressure-bearing seat is coaxially and movably penetrated through the support base, and a cooling mechanism is connected to the lower end of the pressure-bearing seat. An unlocking mechanism is also arranged at the lower end of the pressure-bearing seat for releasing the pressing and limiting mechanism of the mold. A limiting block is arranged on the inner top surface of the support table for limiting the maximum height of the downward movement of the pressure-bearing seat.

[0005] Preferably, the pressing and limiting mechanism includes a concave hole provided on the upper surface of the support seat, and limiting columns are equiangularly distributed about the axis in the concave hole. The upper end of each limiting column extends into the corresponding limiting hole, and the limiting holes are equiangularly distributed on the lower surface of the support sleeve. The upper end of the support sleeve is coaxially and bearing-connected with a rotating disk, and arc-shaped through holes penetrating the upper and lower sides thereof are equiangularly distributed on the rotating disk. The lower end of the pressure-bearing seat threadedly penetrates the rotating disk, and the lower end of the pressure-bearing seat also movably penetrates the fixed disk. The fixed disk is arranged above the rotating disk, and the fixed disk is fixedly connected to the upper surface of the support seat through a protrusion on its lower surface. Strip-shaped through holes are provided on both the fixed disk and the support table, and the strip-shaped through holes provided on both of them completely overlap, and the strip-shaped through holes and the arc-shaped through holes are arranged in one-to-one correspondence. A second spring is arranged between the inner bottom surface of the fixed disk and the lower surface of the support table, and the second spring is movably nested on the outer side of the lower end of the pressure-bearing seat. A total of 8 groups of strip-shaped through holes and arc-shaped through holes are provided, and the follower tube and the follower rod are alternately distributed and penetrate through the adjacent groups of strip-shaped through holes and arc-shaped through holes. The upper end of the follower tube is coaxially and fixedly connected with a limiting frame, and the limiting frame is of a hollow structure, and the hollow structure on the limiting frame is communicated with the follower tube. The upper end of the follower rod is provided with a guiding frame, and the upper end of the guiding frame penetrates through an inclined through groove. The inclined through groove is provided at the flat lower end of the connecting rod, and a pressing block is installed at the upper end of the connecting rod. The middle and lower ends of the connecting rod are symmetrically connected to the upper ends of limiting strips, and the lower ends of the limiting strips are connected to the support table through limiting sliding components.

[0006] Preferably, a matching twist-shaped thread is provided between the outer side of the pressure-bearing seat and the inner side of the hole on the rotating disk through which it threadedly penetrates, so that when the pressure-bearing seat moves in the vertical direction, it drives the rotating disk to rotate.

[0007] Preferably, the limiting sliding component is composed of a sliding groove and a sliding block. The sliding block is of an I-shaped structure, the sliding groove is a strip-shaped hole parallel to the corresponding strip-shaped through hole, and the length of the strip-shaped through hole is greater than the length of the corresponding strip-shaped hole.

[0008] Preferably, the cooling mechanism includes spray holes disposed in the recesses of the limiting frame. The follower tube is connected in communication with the annular water collecting pipe through a through pipe, and the water collecting pipe is connected in communication with the piston tube through a one-way drain pipe. The piston tube is connected in communication with the return groove through a one-way liquid suction pipe, and the sealed end of the piston tube is fixedly connected to the right side of the support platform. One end of a piston assembly is slidably connected without a gap inside the open end of the piston tube, and the other end of the piston assembly is pivotally connected to an eccentric position on the upper surface of the mounting disc. The mounting disc is coaxially key-connected to the upper end of the rotating column, and the upper end of the rotating column is provided with a bearing passing through the upper end of the support tube. The inner side of the support tube is connected to the outer side of the middle and lower part of the rotating column through a ratchet and pawl assembly, and the outer side of the support tube is connected to the support frame through a bearing. The support frame is fixedly installed on the upper surface of the support seat. The lower end inside of the support tube is threadedly connected with a driving rod. An L-shaped adjustment through hole is provided on the driving rod, and an adjustment shaft is threadedly connected to the outer end opening of the adjustment through hole. The adjustment shaft is composed of a sealing disc and a screw rod. The sealing disc is slidably connected without a gap inside the adjustment through hole. The screw rod is connected to the sealing disc through a bearing and threadedly penetrates through the outer end opening of the adjustment through hole. Three displacement through holes communicating to the outside of the driving rod are provided at the lower end of the adjustment through hole, and a piston column is coaxially fixedly connected to the lower end of the driving rod. The lower end of the piston column is slidably connected without a gap inside the air duct, and the air duct is connected to the connecting pipe and the limiting piston rod. A connecting pipe is fixedly provided on the upper surface of the support seat, and a piston disc is slidably connected without a gap inside the connecting pipe. The connecting pipe is filled with hydraulic oil. Three one-way drain holes and three through holes are provided at equal angles on the piston disc, and the piston disc is coaxially fixedly connected to the outer side of the lower end of the driving rod. A first spring is provided between the upper surface of the piston disc and the inner top surface of the connecting pipe, and the first spring is nested on the outer side of the driving rod. A limiting shaft is fixedly connected to the inner bottom end of the adjustment through hole, and the limiting shaft is slidably sealed through the piston piece. The piston piece is slidably connected without a gap inside the adjustment through hole, and three L-shaped rods are connected to the lower surface of the piston piece at equal angles. The lower end of each L-shaped rod is connected with a sealing plug, and the three sealing plugs are arranged in one-to-one correspondence with the three through holes. A prismatic air cavity is provided on the lower surface of the pressure-bearing seat, and the upper end of the limiting piston rod is slidably connected without a gap inside the air cavity. The limiting piston rod is a tubular structure that is through up and down, and the lower end of the limiting piston rod is coaxially fixedly connected to the inner bottom surface of the inner concave hole. Flow guiding slopes are provided at the four corners inside the support platform, and return holes communicating to the return groove are provided inside the flow guiding slopes. The piston column is slidably connected without a gap through the lower end of the connecting pipe.

[0009] Preferably, the piston assembly is composed of a disc body and a rod body. The disc body is slidably connected without a gap inside the open end of the piston tube, and the two ends of the rod body are respectively pivotally connected to an eccentric position on the upper surface of the mounting disc and the center position of the disc body.

[0010] Preferably, the outer side of the upper end of the driving rod and the inner side of the lower end of the supporting tube are also provided with mutually matching twisted threads.

[0011] Preferably, the inner diameter of the through hole is between the maximum diameter and the minimum diameter of the sealing plug, and the sealing plug is a truncated cone structure made of rubber material.

[0012] Preferably, the unlocking mechanism includes a toggle channel arranged on the support seat, and the toggle channel passes through the inner recessed hole and the upper surface of the support seat, the upper surface of the support seat is provided with two groups of positioning holes, and one group of positioning holes extends into the two ends of the n-shaped frame, the middle part of the n-shaped frame is movably penetrated by the outer end of the toggle rod, and the toggle rod movably penetrates the toggle channel, the inner end of the toggle rod is fixedly connected to the outer side of the threaded sleeve, and the threaded sleeve is threadedly connected to the outer side of the support sleeve, the toggle rod is an L-shaped structure, and the outer end of the toggle rod movably extends above the upper surface of the support seat, and the toggle rod is in contact and sliding connection with the inner bottom surface of the toggle channel.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the moisture-proof sand bonding and compacting sand-eating mold can not only facilitate the rapid removal of the mold base and the die head, but also utilize the deadweight of the mold base and the die head to cool the mold base and the die head without the need for an external water pump, thereby reducing costs: 1. The threaded sleeve can be rotated by toggling the toggle rod, so that the support sleeve moves downward under the limiting action of the limiting column and the limiting hole, driving the rotating disk to move downward, so that the rotating disk and the pressure seat are relatively far away, so that the limiting frame is no longer close to the die base and the die head, and the pressure block no longer presses the die base and the die head, so that the die base and the die head can be removed conveniently and quickly, which helps to improve work efficiency; 2. The deadweight of the die base and the die head causes the pressure seat to move downward, thereby causing the limit piston rod to move into the air cavity, squeezing the air in the air cavity so that the gas in the air cavity enters the airway, thereby causing the piston column in the airway to move upward, driving the piston plate, causing the hydraulic oil to flow from the bottom of the piston plate through the one-way drainage hole to the top of the piston plate. Because the through hole is blocked by the sealing plug, and the one-way drainage hole only allows the hydraulic oil to flow in one direction, the piston plate cannot be reset under the action of spring 1. When the die base and the die head need to be cooled, only the adjusting shaft needs to be rotated to cause the piston plate to drive the L-shaped rod and the sealing plug to move downward. This will cause a gap between the sealing plug and the through hole, so that the piston disk can be slowly reset. During this process, the support tube will rotate, and the rotating column will rotate with it through the ratchet and ratchet assembly, thereby achieving the purpose of driving the mounting disk to rotate. During the rotation of the mounting disk, the piston assembly will reciprocate in the piston tube, so that the one-way suction pipe and the one-way discharge pipe will transport the water in the reflux tank to the water collecting pipe, and then enter the limit frame through the through pipe, and finally spray from the spray hole to the mold base and the die head. During this process, there is no need for an external water pump, which helps to reduce costs and cleverly utilize the mold base and the die head. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of point A; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 It is a schematic diagram of the cross-sectional connection structure of the piston tube and the airway of the present invention; Figure 5 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of point B in the middle; Figure 7 It is a schematic diagram of a partial top-sectional structure of the present invention; Figure 8 It is a schematic diagram of the cross-sectional connection structure of the pressure bearing seat and the pressure block of the present invention; Figure 9 For the present invention Figure 8 The schematic diagram of the enlarged structure of point C in the middle; Figure 10 It is a schematic diagram of the cross-sectional connection structure of the support seat and the toggle channel of the present invention; Figure 11 For the present invention Figure 10 The enlarged structural diagram of point D in the middle; Figure 12 This is a schematic diagram of the structure of the pressure bearing seat and the pressure block position of the present invention; Figure 13 It is a schematic diagram of the connection structure between the limit frame and the water collecting pipe of the present invention.

[0015] In the figure: 1, support seat; 2, support platform; 3, toggle channel; 4, pressure seat; 5, limit frame; 6, spray hole; 7, connecting rod; 8, pressure block; 9, piston tube; 10, piston assembly; 11, mounting plate; 12, one-way suction pipe; 13, one-way discharge pipe; 14, support pipe; 15, support frame; 16, drive rod; 17, connecting pipe; 18, reflux groove; 19, follower pipe; 20, air cavity; 21, limit piston rod; 22, airway; 23, strip through hole; 24, arc through hole; 25, water collecting pipe; 26, piston column; 27, piston plate; 28, one-way discharge hole; 29, through hole; 30, adjustment through hole hole; 31, piston plate; 32, limit shaft; 33, displacement through hole; 34, L-shaped rod; 35, sealing plug; 36, spring one; 37, rotating column; 38, ratchet and ratchet assembly; 39, adjusting shaft; 40, limit block; 41, support sleeve; 42, limit column; 43, rotating disk; 44, fixed disk; 45, guide slope; 46, reflux hole; 47, follower rod; 48, guide frame; 49, oblique through groove; 50, limit strip; 51, positioning hole; 52, toggle rod; 53, n-shaped frame; 54, threaded sleeve; 55, limit hole; 56, inner concave hole; 57, limit sliding assembly; 58, through pipe; 59, spring two. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figures 1-13 , the present invention provides the following technical solutions: Embodiment 1: In order to solve the problem that it is inconvenient to quickly remove the moisture-proof sand bonding and compacting sand-eating mold in the past, the following technical solution is provided, specifically, a moisture-proof sand bonding and compacting sand-eating mold, including a support seat 1 and a support platform 2 installed on the upper surface of the support seat 1, a clamping limit mechanism is arranged on the support platform 2, and an unlocking mechanism is also arranged at the lower end of the pressure-bearing seat 4, which is used to make the clamping limit mechanism release the mold, and a limit block 40 is arranged on the inner top surface of the support platform 2, which is used to limit the maximum height of the downward movement of the pressure-bearing seat 4.

[0018] The pressing and limiting mechanism includes a concave hole 56 provided on the upper surface of the support base 1, and limiting posts 42 are equiangularly distributed about the axis in the concave hole 56. The upper end of each limiting post 42 extends into the corresponding limiting hole 55, and the limiting holes 55 are equiangularly distributed on the lower surface of the support sleeve 41. The upper end of the support sleeve 41 is coaxially connected to a rotating disc 43 by a bearing, and arc-shaped through holes 24 penetrating through its upper and lower sides are equiangularly distributed on the rotating disc 43. The lower end of the pressure-bearing seat 4 threadedly penetrates through the rotating disc 43, and the lower end of the pressure-bearing seat 4 also movably penetrates through the fixed disc 44. The fixed disc 44 is arranged above the rotating disc 43, and the fixed disc 44 is fixedly connected to the upper surface of the support base 1 by the protrusions on its lower surface. Bar-shaped through holes 23 are provided on both the fixed disc 44 and the support table 2, and the bar-shaped through holes 23 provided on both of them completely overlap, and the bar-shaped through holes 23 and the arc-shaped through holes 24 are arranged in one-to-one correspondence. A second spring 59 is arranged between the inner bottom surface of the fixed disc 44 and the lower surface of the support table 2, and the second spring 59 is movably nested on the outer side of the lower end of the pressure-bearing seat 4. There are 8 groups of bar-shaped through holes 23 and arc-shaped through holes 24 in total, and the follower tube 19 and the follower rod 47 are alternately distributed and penetrate through the adjacent groups of bar-shaped through holes 23 and arc-shaped through holes 24. The upper end of the follower tube 19 is coaxially fixedly connected to a limiting frame 5, and the limiting frame 5 is a hollow structure, and the hollow structure on the limiting frame 5 is communicated with the follower tube 19. The upper end of the follower rod 47 is provided with a guiding frame 48, and the upper end of the guiding frame 48 penetrates through the inclined through slot 49. The inclined through slot 49 is arranged at the flat lower end of the connecting rod 7, and the upper end of the connecting rod 7 is provided with a pressing block 8. The middle and lower ends of the connecting rod 7 are symmetrically connected to the upper ends of the limiting strips 50, and the lower ends of the limiting strips 50 are connected to the support table 2 through a limiting sliding assembly 57. During use, the die holder is placed on the pressure-bearing seat 4, and then the die head is placed on the die holder. The weight of the die head and the die holder will cause the pressure-bearing seat 4 to move downward, and then cause the pressure-bearing seat 4 to move downward relative to the rotating disc 43, so that the rotating disc 43 rotates. When the rotating disc 43 rotates, through the bar-shaped through holes 23 and the arc-shaped through holes 24, not only will the 4 follower tubes 19 approach each other, driving the 4 limiting frames 5 to closely adhere to the side of the mold, but also the 4 follower rods 47 will approach each other, driving the connecting rod 7 and the limiting strips 50 to move synchronously. When the limiting strip 50 moves to the maximum distance, when the follower rod 47 continues to move, it will cause the guiding frame 48 to move in the inclined through slot 49, and then cause the connecting rod 7 to move downward, so that the pressing block 8 presses the upper surface of the die head, pressing the die head and the die holder tightly, avoiding the appearance of gaps between the two, and avoiding unqualified products such as cross-sections and dimensional errors caused by the gaps. Matching twist-shaped threads are provided between the outer side of the pressure-bearing seat 4 and the inner side of the hole on the rotating disc 43 through which it threadedly penetrates, which is convenient for driving the rotating disc 43 to rotate when the pressure-bearing seat 4 moves in the vertical direction. The limiting sliding assembly 57 is composed of a chute and a slider. The slider is an I-shaped structure, and the chute is a bar-shaped hole parallel to the corresponding bar-shaped through hole 23, and the length of the bar-shaped through hole 23 is greater than the length of the corresponding bar-shaped hole.The unlocking mechanism includes a toggle channel 3 provided on the support seat 1, and the toggle channel 3 passes through the inner concave hole 56 and the upper surface of the support seat 1, and two groups of positioning holes 51 are provided on the upper surface of the support seat 1, and one group of positioning holes 51 extends into the two ends of the n-shaped frame 53, and the middle part of the n-shaped frame 53 is movably penetrated by the outer end of the toggle rod 52, and the toggle rod 52 movably penetrates the toggle channel 3, the inner end of the toggle rod 52 is fixedly connected to the outer side of the threaded sleeve 54, and the threaded sleeve 54 is threadedly connected to the outer side of the support sleeve 41, the toggle rod 52 is an L-shaped structure, and the toggle rod 5 2 is movably extended to the upper surface of the support seat 1, and the toggle rod 52 is in contact and sliding connection with the inner bottom surface of the toggle channel 3. When in use, it is only necessary to toggle the toggle rod 52 to drive the threaded sleeve 54 to rotate, so that the support sleeve 41 moves downward under the limiting action of the limiting column 42 and the limiting hole 55, driving the rotating disk 43 to move downward. Relatively, the rotating disk 43 will move away from the pressure seat 4. At this time, the follower tube 19 and the follower rod 47 will move away from the mold, so that the limiting frame 5 is no longer close to the mold, and the pressing block 8 is no longer pressed against the mold, so that the mold can be quickly removed.

[0019] Embodiment 2: In order to solve the problem that the previous moisture-proof sand bonding and compacting sand-eating molds require an external water pump when cooling the molds, which is not conducive to reducing costs, the following technical solution is provided, specifically, a pressure-bearing seat 4 is coaxially movably penetrated on the support seat 1, and the lower end of the pressure-bearing seat 4 is connected to a cooling mechanism.

[0020] The cooling mechanism includes spray holes 6 provided at the recesses on the limiting frame 5. The follower tube 19 is connected in communication with the annular water collecting pipe 25 through the through pipe 58. The water collecting pipe 25 is connected in communication with the piston tube 9 through the one-way liquid discharge pipe 13. The piston tube 9 is connected in communication with the return groove 18 through the one-way liquid suction pipe 12. The sealed end of the piston tube 9 is fixedly connected to the right side of the support platform 2. One end of the piston assembly 10 is slidably connected to the inner side of the open end of the piston tube 9 in a seamless manner. The other end of the piston assembly 10 is axially connected to the eccentric position on the upper surface of the mounting disc 11. The mounting disc 11 is coaxially key-connected to the upper end of the rotating column 37. The upper end of the rotating column 37 is provided with a bearing passing through the upper end of the support tube 14. The inner side of the support tube 14 is connected to the outer side of the middle and lower part of the rotating column 37 through the ratchet and pawl assembly 38. The outer side of the support tube 14 is connected to the support frame 15 through a bearing. The support frame 15 is fixedly installed on the upper surface of the support base 1. The lower end inner side of the support tube 14 is threadedly connected with the driving rod 16. The driving rod 16 is provided with an L-shaped adjusting through hole 30. The outer end opening of the adjusting through hole 30 is threadedly connected with the adjusting shaft 39. The adjusting shaft 39 is composed of a sealing disc and a screw rod. The sealing disc is slidably connected to the adjusting through hole 30 in a seamless manner. The screw rod is connected to the sealing disc through a bearing. The screw rod threadedly penetrates through the outer end opening of the adjusting through hole 30. Three displacement through holes 33 that penetrate to the outer side of the driving rod 16 are provided at the lower end of the adjusting through hole 30. The lower end of the driving rod 16 is coaxially fixedly connected with the piston column 26. The lower end of the piston column 26 is slidably connected to the air duct 22 in a seamless manner. The air duct 22 is connected to the connecting pipe 17 and the limiting piston rod 21 in communication. The connecting pipe 17 is fixedly provided on the upper surface of the support base 1. A piston disc 27 is slidably connected to the connecting pipe 17 in a seamless manner. The connecting pipe 17 is filled with hydraulic oil. Three one-way liquid discharge holes 28 and three through holes 29 are provided at equal angles on the piston disc 27. The piston disc 27 is coaxially fixedly connected to the outer side of the lower end of the driving rod 16. A first spring 36 is provided between the upper surface of the piston disc 27 and the inner top surface of the connecting pipe 17. The first spring 36 is nested on the outer side of the driving rod 16. The inner bottom end of the adjusting through hole 30 is fixedly connected with a limiting shaft 32. The limiting shaft 32 is slidably sealed through the piston piece 31. The piston piece 31 is slidably connected to the adjusting through hole 30 in a seamless manner. Three L-shaped rods 34 are connected to the lower surface of the piston piece 31 at equal angles. The lower end of each L-shaped rod 34 is connected with a sealing plug 35. The three sealing plugs 35 are arranged in one-to-one correspondence with the three through holes 29. A prismatic air cavity 20 is provided on the lower surface of the pressure-bearing seat 4. The upper end of the limiting piston rod 21 is slidably connected to the air cavity 20 in a seamless manner. The limiting piston rod 21 is a tubular structure that penetrates up and down. The lower end of the limiting piston rod 21 is coaxially fixedly connected to the inner bottom surface of the inner concave hole 56. Flow guiding slopes 45 are provided at the four corners inside the support platform 2. Return holes 46 that penetrate to the return groove 18 are provided in the flow guiding slopes 45. The piston column 26 is slidably and seamlessly penetrated and connected to the lower end of the connecting pipe 17. When the pressure-bearing seat 4 moves downward under the self-weight of the mold, the limiting piston rod 21 will gradually move into the interior of the air cavity 20.The air in the air cavity 20 is then squeezed, so that the gas in the air cavity 20 enters the air channel 22, thereby causing the piston column 26 in the air channel 22 to move upward, driving the piston plate 27 to move upward synchronously. In the process of the piston plate 27 moving upward, the hydraulic oil above it will flow into the lower part thereof through the one-way drainage hole 28. Due to the one-way permeability of the one-way drainage hole 28 and the blocking of the through hole 29 by the sealing plug 35, the hydraulic oil can no longer flow back from the upper part of the piston plate 27 to the lower part thereof, thereby preventing the piston plate 27 from resetting under the action of the spring 1 36. When the mold needs to be cooled, it is only necessary to rotate the adjusting shaft 39 so that the piston plate 31 drives the L-shaped rod 34 and the sealing plug 35 to move downward, thereby generating a gap between the sealing plug 35 and the through hole 29, so that the piston plate 27 is slowly reset. In the process of the piston plate 27 slowly resetting, the support tube 14 is rotated, and the rotating column 37 is rotated with the support tube 14 through the ratchet ratchet assembly 38, thereby The mounting plate 11 is driven to rotate. When the mounting plate 11 rotates, the piston assembly 10 can make a reciprocating motion in the piston tube 9, so that the one-way liquid suction tube 12 continuously absorbs the water in the reflux groove 18, and the one-way liquid discharge tube 13 transports the absorbed water to the water collecting pipe 25, and then flows into the limit frame 5 through the through-tube 58, and finally sprays to the mold through the spray hole 6. The water absorbing the mold temperature will flow to the guide slope 45 and flow back to the reflux groove 18 through the reflux hole 46 to achieve water recycling. The piston assembly 10 is composed of a disk body and a rod body, wherein the disk body is seamlessly slidably connected to the inner side of the open end of the piston tube 9, and the two ends of the rod body are axially connected to the eccentric position of the upper surface of the mounting plate 11 and the center position of the disk body, respectively. The outer side of the upper end of the driving rod 16 and the inner side of the lower end of the support tube 14 are also provided with mutually matching twisted threads. The inner diameter of the through-hole 29 is between the maximum diameter and the minimum diameter of the sealing plug 35, and the sealing plug 35 is a truncated cone structure made of rubber material.

[0021] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A moisture-proof sand-bonding and compaction sand-eating mold, comprising a support base (1) and a support table (2) installed on the upper surface of the support base (1), characterized in that: A pressing and limiting mechanism is provided on the support table (2). A pressure-bearing seat (4) is coaxially and movably penetrated through the support seat (1), and a cooling mechanism is connected to the lower end of the pressure-bearing seat (4). An unlocking mechanism is further provided at the lower end of the pressure-bearing seat (4) for loosening the mold by the pressing and limiting mechanism. A limiting block (40) is provided on the inner top surface of the support table (2) for limiting the maximum height of the downward movement of the pressure-bearing seat (4).

2. The anti-moisture sand bonding and compaction sand-eating mold according to claim 1, characterized in that: The pressing and limiting mechanism includes a concave hole (56) provided on the upper surface of the support seat (1), and limiting columns (42) are equiangularly distributed about the axis in the concave hole (56). The upper end of each limiting column (42) extends into the corresponding limiting hole (55), and the limiting holes (55) are equiangularly distributed on the lower surface of the support sleeve (41). The upper end of the support sleeve (41) is coaxially and bearing-connected with a rotating disk (43), and arc-shaped through holes (24) penetrating through its upper and lower sides are equiangularly distributed on the rotating disk (43). The lower end of the pressure-bearing seat (4) is threadedly penetrated through the rotating disk (43), and the lower end of the pressure-bearing seat (4) also movably penetrates through the fixed disk (44). Bar-shaped through holes (23) are provided on both the fixed disk (44) and the support table (2), and the bar-shaped through holes (23) provided on both of them completely overlap, and the bar-shaped through holes (23) and the arc-shaped through holes (24) are arranged in one-to-one correspondence. A total of 8 groups of the bar-shaped through holes (23) and the arc-shaped through holes (24) are provided, and the follower tube (19) and the follower rod (47) are alternately distributed and penetrate through the adjacent groups of bar-shaped through holes (23) and arc-shaped through holes (24). The upper end of the follower tube (19) is coaxially and fixedly connected with a limiting frame (5). The upper end of the follower rod (47) is provided with a guiding frame (48), and the upper end of the guiding frame (48) penetrates through an inclined through slot (49). The inclined through slot (49) is provided at the flat lower end of the connecting rod (7), and a pressing block (8) is installed at the upper end of the connecting rod (7). The middle and lower ends of the connecting rod (7) are symmetrically connected to the upper ends of limiting strips (50), and the lower ends of the limiting strips (50) are connected to the support table (2) through a limiting sliding assembly (57).

3. The anti-moisture sand bonding and compaction sand-eating mold according to claim 2, characterized in that: The fixed disk (44) is arranged above the rotating disk (43), and the fixed disk (44) is fixedly connected to the upper surface of the support seat (1) through a protrusion on its lower surface. A second spring (59) is provided between the inner bottom surface of the fixed disk (44) and the lower surface of the support table (2), and the second spring (59) is movably nested on the outer side of the lower end of the pressure-bearing seat (4). The limiting frame (5) is of a hollow structure, and the hollow structure on the limiting frame (5) is in through connection with the follower tube (19).

4. A moisture-proof sand bonding and compaction sand-eating mold according to claim 3, characterized in that: Matching twist-shaped threads are provided between the outer side of the pressure-bearing seat (4) and the inner side of the hole on the rotating disk (43) through which it is threadedly penetrated, so that when the pressure-bearing seat (4) moves in the vertical direction, it can drive the rotating disk (43) to rotate. The limiting sliding assembly (57) is composed of a chute and a slider. The slider is of an I-shaped structure, and the chute is a bar-shaped hole parallel to the corresponding bar-shaped through hole (23), and the length of the bar-shaped through hole (23) is greater than the length of the corresponding bar-shaped hole.

5. A moisture-proof sand bonding and compaction sand-eating mold according to claim 4, characterized in that: The temperature reduction mechanism includes spray holes (6) arranged at the recessed parts on the limit frame (5). The follower pipe (19) is connected to the annular water collecting pipe (25) through a through pipe (58) in a penetrating manner, and the water collecting pipe (25) is connected to the piston pipe (9) through a one-way liquid discharge pipe (13). The piston pipe (9) is connected to the return groove (18) through a one-way liquid suction pipe (12), and the sealed end of the piston pipe (9) is fixedly connected to the right side of the support platform (2). One end of a piston assembly (10) is slidably and seamlessly connected to the inner side of the open end of the piston pipe (9), and the other end of the piston assembly (10) is pivotally connected to an eccentric position on the upper surface of the mounting disc (11). A connecting pipe (17) is fixedly arranged on the upper surface of the support seat (1), and a piston disc (27) is slidably and seamlessly connected to the inside of the connecting pipe (17). The connecting pipe (17) is filled with hydraulic oil. Three one-way liquid discharge holes (28) and three through holes (29) are equiangularly arranged on the piston disc (27), and the piston disc (27) is coaxially and fixedly connected to the outer side of the lower end of the driving rod (16). The driving rod (16) is threadedly connected to the inner side of the lower end of the support pipe (14). A first spring (36) is arranged between the upper surface of the piston disc (27) and the inner top surface of the connecting pipe (17), and the first spring (36) is nested on the outer side of the driving rod (16). Flow guide slopes (45) are arranged at the four corners inside the support platform (2), and return holes (46) leading to the return groove (18) are arranged in the flow guide slopes (45). The piston column (26) is slidably and seamlessly connected to the lower end of the connecting pipe (17).

6. A moisture-proof sand bonding and compaction sand-eating mold according to claim 5, characterized in that: All the spray holes (6) are arranged towards the pressure bearing seat (4). The mounting disc (11) is coaxially and key-connected to the upper end of the rotating column (37), and the upper end of the rotating column (37) is arranged through the bearing of the upper end of the support pipe (14). The inner side of the support pipe (14) is connected to the outer side of the middle and lower part of the rotating column (37) through a ratchet and pawl assembly (38), and the outer side of the support pipe (14) is connected to the support frame (15) through a bearing. The support frame (15) is fixedly installed on the upper surface of the support seat (1). A prismatic air cavity (20) is arranged on the lower surface of the pressure bearing seat (4), and the upper end of a limit piston rod (21) is slidably and seamlessly connected to the inside of the air cavity (20). The limit piston rod (21) is a tubular structure that is penetrated up and down, and the lower end of the limit piston rod (21) is coaxially and fixedly connected to the inner bottom surface of the concave hole (56).

7. A moisture-proof sand bonding and compaction sand-eating die according to claim 6, characterized in that: The driving rod (16) is provided with an L-shaped adjustment through hole (30), and an adjustment shaft (39) is threadedly connected to the outer opening of the adjustment through hole (30), and the adjustment shaft (39) is composed of a sealing disk and a screw rod, the sealing disk is seamlessly slidably connected to the adjustment through hole (30), the screw rod bearing is connected to the sealing disk, and the screw rod thread passes through the outer opening of the adjustment through hole (30), and the lower end of the adjustment through hole (30) is provided with three displacement through holes (33) that pass through to the outside of the driving rod (16), and the inner bottom end of the adjustment through hole (30) is fixedly connected to a limit shaft (32), and the limit shaft (32) is tightly connected to the adjustment through hole (30). A sealing slide is provided through the piston plate (31), the piston plate (31) is seamlessly slidably connected in the adjustment through hole (30), and three L-shaped rods (34) are connected at equal angles to the lower surface of the piston plate (31), the lower end of each of the L-shaped rods (34) is connected to a sealing plug (35), and the three sealing plugs (35) are arranged in a one-to-one correspondence with the three through holes (29), the lower end of the driving rod (16) is coaxially fixedly connected to the piston column (26), the lower end of the piston column (26) is seamlessly slidably connected in the airway (22), and the airway (22) passes through the connecting pipe (17) and the limiting piston rod (21).

8. A moisture-proof sand bonding and compaction sand-eating die according to claim 7, characterized in that: The inner diameter of the through hole (29) is between the maximum diameter and the minimum diameter of the sealing plug (35), and the sealing plug (35) is a truncated cone structure made of rubber material. The outer side of the upper end of the driving rod (16) and the inner side of the lower end of the support tube (14) are also provided with mutually matching twisted threads. The piston assembly (10) is composed of a disk body and a rod body, wherein the disk body is seamlessly slidably connected to the inner side of the open end of the piston tube (9), and the two ends of the rod body are axially connected to the eccentric position of the upper surface of the mounting disk (11) and the center position of the disk body respectively.

9. A moisture-proof sand-bonding and compaction sand-eating die according to claim 8, characterized in that: The unlocking mechanism comprises a toggle channel (3) arranged on the support seat (1), and the toggle channel (3) passes through the inner concave hole (56) and the upper surface of the support seat (1); the upper surface of the support seat (1) is provided with two groups of positioning holes (51), and two ends of an n-shaped frame (53) are inserted into one group of positioning holes (51); the middle part of the n-shaped frame (53) is movably penetrated by the outer end of a toggle rod (52), and the toggle rod (52) movably penetrates the toggle channel (3); the inner end of the toggle rod (52) is fixedly connected to the outer side of a threaded sleeve (54), and the threaded sleeve (54) is threadedly connected to the outer side of the support sleeve (41); the toggle rod (52) is an L-shaped structure, and the outer end of the toggle rod (52) movably extends above the upper surface of the support seat (1), and the toggle rod (52) is in contact and sliding connection with the inner bottom surface of the toggle channel (3).

Images