Box moving mechanism
By designing the box shifting mechanism, including the box shifting device and lifting mechanism in the walking groove, the problem of unstable movement of the sand box is solved, the stable and precise control of the sand box is achieved, and the sand falling efficiency of the static pressure molding line is improved.
Patent Information
- Application Number
- CN202422414349.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-08
AI Technical Summary
In the existing static pressure molding line, the movement of the sand box is unstable and cannot be accurately controlled, which affects the efficiency of sand falling operation.
A box shifting mechanism is designed, including a box shifting device in the vertical frame and the walking groove, equipped with a walking wheel, a rack and a telescopic cylinder lifting frame, to achieve stable vertical lifting and horizontal movement of the sand box, and combines the guide rod and the limiting mechanism to ensure accurate control.
The stable and precise movement of the sand box is achieved, the efficiency and stability of sand drop operation are improved, and the matching between the sand box and the sand drop station is ensured.
Smart Images
Figure CN223160062U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of production auxiliary equipment for static pressure molding lines, and specifically relates to a mold shifting mechanism. Background Art
[0002] The static pressure molding line mainly refers to the abbreviation of the equipment production line for molding in clay sand casting. It is a two-station molding with boxes, with high efficiency and good sand mold quality. The static pressure molding line mainly consists of a molding station, a core setting and mold closing station, a pouring and cooling station, a shakeout station, etc. During actual production, it is necessary to transfer the sand box with the casting from the pouring and cooling station to the shakeout station, and then take out the casting inside. The action mechanism for realizing the above functions needs to complete the vertical lifting and horizontal movement of the sand box. The action mechanism currently used generally includes rollers with motors and vertically arranged telescopic cylinders. During the movement, the stability of the sand box cannot be guaranteed, and the accurate control of the position of the sand box cannot be realized during the movement, which easily leads to the situation that the sand box does not match the shakeout station, and to a certain extent, affects the efficiency of the overall shakeout operation. Summary of the Invention
[0003] The purpose of the utility model is to provide a mold shifting mechanism, which provides a more stable action mechanism for the vertical lifting and horizontal movement of the sand box, realizes the accurate control of the horizontal movement position of the sand box, and solves the problems in the prior art.
[0004] The technical solution adopted by the present utility model to solve its technical problems is as follows: a box moving mechanism, which includes an upright frame. A horizontally arranged walking groove is provided inside the upright frame, and a movable box moving device is installed in the walking groove. The box moving device includes a walking frame. Walking wheels that cooperate with the walking groove are installed on both sides of the walking frame. A driving motor is installed on one side of the walking frame, and a gear is installed on the output shaft of the driving motor. A rack that meshes with the gear is installed in the walking groove. Sand box lifting mechanisms are provided at both the front and rear ends in the moving direction of the walking frame. The sand box lifting mechanism includes a telescopic cylinder provided at the bottom of the walking frame. A lifting frame is connected to the piston rod of the telescopic cylinder. A horizontally arranged support plate is installed at the bottom of the lifting frame, and the support plate extends towards the inner side of the lifting frame. Among them, a first hinge seat is provided at the bottom of the walking frame, and a first pin shaft is installed inside the first hinge seat. An installation seat that cooperates with the first pin shaft is provided on the cylinder body of the telescopic cylinder. A second hinge seat is installed on the lifting frame, and a second pin shaft is installed inside the second hinge seat. An earring that cooperates with the second pin shaft is installed on the piston rod of the telescopic cylinder. Vertically arranged guide rods are also installed on both sides of the lifting frame, and guide sleeves that cooperate with the guide rods are installed on the walking frame. A walking box body is installed inside the walking frame. Rib plates are provided around the walking box body. A drag chain bracket is also installed on one side of the walking box body. Guide wheels are installed at the four corner positions of the walking frame, and guide pads that cooperate with the guide wheels are installed in the walking groove. First scraping plates are installed on both sides of the walking wheels on the walking frame. A folding plate is installed at the bottom of the support plate, and a second scraping plate is installed on the inner side of the vertical plate of the folding plate through bolts. A sand box upper limit plate is installed at the bottom of the walking frame inside the sand box lifting mechanism.A seat frame is installed on the vertical frame at the bottom of the pallet. The seat frame is horizontally arranged. A first linkage limit mechanism is installed at the front end of the seat frame in the advancing direction of the sand box, and a second linkage limit mechanism is installed at the rear end of the seat frame in the advancing direction of the sand box. Both the first linkage limit mechanism and the second linkage limit mechanism include a guide cylinder fixed at the end of the seat frame. A first limit rod is fitted in the guide cylinder. A first spring is installed between the end of the first limit rod and the guide cylinder. The first spring always has a tendency to make the first limit rod extend out of the guide cylinder. A vertical hole and a horizontal hole that communicate with each other are also formed in the seat frame. A vertical moving rod is installed in the vertical hole. Two symmetrically arranged first inclined surfaces are provided at the bottom of the vertical moving rod. Corresponding to the position of the first inclined surface, a first moving block and a second moving block are provided at the bottom of the vertical hole. Second inclined surfaces that cooperate with the first inclined surface are provided on both the first moving block and the second moving block. A steel wire rope is installed in the horizontal hole. The first moving block is connected to the first limit rod of the first linkage limit mechanism through the steel wire rope, and the second moving block is connected to the first limit rod of the second linkage limit mechanism through the steel wire rope. A convex plate is provided at one end of the vertical moving rod extending out of the vertical hole. A second spring is sleeved on the outer periphery of the vertical moving rod between the convex plate and the seat frame. The second spring always has a tendency to move the vertical moving rod upward to disengage the first inclined surface from the second inclined surface. When the vertical moving rod moves downward against the elastic force of the second spring, the first inclined surface comes into contact and cooperation with the second inclined surface, and the first moving block and the second moving block move closer to each other, overcoming the elastic force of the first spring to make the first limit rod enter the guide cylinder. A horizontally arranged avoidance groove is formed on the guide cylinder of the first linkage limit mechanism. A connecting rod is fitted in the avoidance groove. The upper end of the connecting rod passes through the avoidance groove and is connected to the first limit rod. The lower end of the connecting rod is connected to a horizontally arranged second limit rod. The second limit rod is located below the first limit rod and can move synchronously with the first limit rod.
[0005] The positive effect of the present utility model lies in that: A box moving mechanism of the present utility model includes a vertical frame and a walking groove horizontally arranged thereon. A movable box moving device is installed in the walking groove. Among them, walking wheels that cooperate with the walking groove are provided on the box moving device. A gear is provided on the output shaft of the driving motor on the box moving device, and a rack that cooperates with the gear is provided in the walking groove, so as to drive the sand box to achieve stable and precisely controllable horizontal movement. A sand box lifting mechanism is also installed on the box moving device. The sand box lifting mechanism includes a telescopic cylinder, a lifting frame and a pallet. Among them, the pallet can achieve the cooperative lifting of the side of the sand box, and guide rods are provided on both sides of the lifting frame, which can ensure the stability of the sand box during vertical lifting and effectively improve the efficiency of the overall sand discharging operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Figure 1 is a structural schematic diagram of the present utility model;
[0007] Figure 2 is Figure 1 the left view of
[0008] Figure 3 is Figure 1 the structural schematic diagram after removing the vertical frame in
[0009] Figure 4 is Figure 3 the top view of
[0010] Figure 5 is Figure 3 the partial enlarged view of I in
[0011] Figure 6 is Figure 2 the partial enlarged view of II in
[0012] Figure 7 the state schematic diagram after adding the linkage limit mechanism to the utility model;
[0013] Figure 8 is Figure 7 the sectional view taken along the A-A direction in
[0014] Figure 9 is Figure 8 the enlarged view of the sectional view taken along the B-B direction in
[0015] Figure 10 is when the limit rod is pulled into the guide cylinder Figure 9 the state schematic diagram of the structure in
[0016] Figure 11 is Figure 7 the enlarged view of the sectional view taken along the C-C direction in Specific embodiments
[0017] A box transfer mechanism according to the utility model, as Figures 1-4 shown, includes a vertical frame 1. A horizontally arranged walking groove 2 is provided inside the vertical frame 1. A movable box transfer device is installed in the walking groove 2. The box transfer device can vertically lift and horizontally move the sand box, and transfer the sand box from the casting cooling station to the shakeout station.
[0018] The box transfer device includes a walking frame 3. Walking wheels 4 that cooperate with the walking groove 2 are installed on both sides of the walking frame 3. To provide power for the movement of the walking frame 3, a driving motor 5 is installed on one side of the walking frame 3. A gear 6 is installed on the output shaft of the driving motor 5. A rack 7 that meshes with the gear 6 is installed in the walking groove 2. The meshing gear 6 and rack 7 can not only achieve the stable movement of the walking frame 3, but also achieve the precise control of the horizontal movement of the walking frame 3, ensuring that the driven sand box can be precisely moved to the shakeout station to complete the subsequent operation of taking out the casting.
[0019] To achieve the vertical lifting of the sand box and complete the separation of the sand box from the bottom transfer trolley, sand box lifting mechanisms are provided at both the front and rear ends in the moving direction of the walking frame 3. The sand box lifting mechanism includes a telescopic cylinder 8 provided at the bottom of the walking frame 3. A lifting frame 9 is connected to the piston rod of the telescopic cylinder 8. A horizontally arranged support plate 10 is installed at the bottom of the lifting frame 9, and the support plate 10 extends inwardly towards the lifting frame 9. When at the pouring and cooling station, the piston rod of the telescopic cylinder 8 extends, so that the support plate 10 is in a lower position. When the transfer trolley and the sand box thereon move to the position of the sand box lifting mechanism, the transfer trolley is locked, and the piston rod of the telescopic cylinder 8 contracts. Both sides of the sand box are driven by the support plate 10 to move upward, realizing the vertical lifting of the sand box.
[0020] Furthermore, to facilitate the installation of the telescopic cylinder 8 between the walking frame 3 and the lifting frame 9 and improve the stability during the vertical lifting and lowering of the sand box, as Figure 5 shown, a first hinge seat 11 is provided at the bottom of the walking frame 3. A first pin shaft 12 is installed inside the first hinge seat 11. An installation seat 13 that cooperates with the first pin shaft 12 is provided on the cylinder body of the telescopic cylinder 8. A second hinge seat 14 is installed on the lifting frame 9. A second pin shaft 15 is installed inside the second hinge seat 14. An earring 16 that cooperates with the second pin shaft 15 is installed on the piston rod of the telescopic cylinder 8. The length adjustment of the vertical height can be carried out between the earring 16 and the piston rod to adaptively adjust the initial supporting height for different types of sand boxes.
[0021] Vertically arranged guide rods 17 are also installed on both sides of the lifting frame 9. Guide sleeves 18 that cooperate with the guide rods 17 are installed on the walking frame 3. The arrangement of the guide sleeves 18 and the guide rods 17 improves the stability of the lifting frame 9 and the support plate 10 during vertical movement to a certain extent.
[0022] Furthermore, to increase the strength of the box transfer device, a walking box body 19 is installed inside the walking frame 3. Rib plates 20 are provided around the walking box body 19. To avoid interference between the control circuit and the device during movement, a drag chain bracket 21 is also installed on one side of the walking box body 19. A drag chain can be installed on the drag chain bracket 21, and the inside of the drag chain is used to hold the control circuit and the oil pipeline.
[0023] Furthermore, to achieve the stable walking of the walking frame 3 in the walking groove 2, guide wheels 22 are installed at the four corner positions of the walking frame 3, as Figure 6 shown. Guide pads 23 that cooperate with the guide wheels 22 are installed in the walking groove 2. The arrangement of the guide pads 23 and the guide wheels 22 can effectively avoid the shaking of the box transfer device during horizontal movement and ensure the stability of the sand box during horizontal movement.
[0024] When the sand box is lifted vertically or moved horizontally, molding sand may fall off. To avoid the negative impact of the molding sand on the movement of the above-mentioned device, first scraping plates 24 are installed on the walking frames 3 on both sides of the walking wheels 4. The first scraping plates 24 can scrape the molding sand in the walking groove 2 to prevent it from affecting the rotation of the walking wheels 4 or the gears 6. To scrape the molding sand that falls on the transfer trolley at the bottom of the sand box, a folding plate 25 is installed at the bottom of the support plate 10. A second scraping plate 44 is installed on the inner side of the vertical plate of the folding plate 25 by bolts. After the sand box is lifted by a certain distance, the second scraping plate 44 can still contact the upper surface of the transfer trolley. When the sand box moves horizontally, the second scraping plate 44 can scrape the remaining molding sand on the transfer trolley.
[0025] To limit the position of the sand box during vertical lifting, a sand box upper limit plate 26 is installed at the bottom of the walking frame 3 inside the sand box lifting mechanism. The vertical clamping and positioning of the sand box are realized through the support plate 10 and the sand box upper limit plate 26, further improving the stability of the sand box movement.
[0026] When performing the sand box lifting operation, first the support plate 10 descends to the designated position. After the transfer trolley on the circulating line drives the sand box to walk above the support plate 10, then the support plate 10 is lifted vertically. After completing the transfer operation of the internal casting, the sand box is placed back on the transfer trolley again. To ensure that the transfer trolley and the sand box on it can move above the support plate 10 only after the support plate 10 descends to the designated position, and to limit the transfer trolley and the sand box on the circulating line during the sand box transfer process to avoid interfering with the sand box during transfer, a seat frame 27 is installed on the vertical frame 1 at the bottom of the support plate 10. The seat frame 27 is horizontally arranged. A first linkage limit mechanism is installed at the front end of the seat frame 27 in the advancing direction of the sand box, and a second linkage limit mechanism is installed at the rear end of the seat frame 27 in the advancing direction of the sand box.
[0027] As Figures 7-9 shown, both the first linkage limit mechanism and the second linkage limit mechanism include a guide cylinder 28 fixed to the end of the seat frame 27. A first limit rod 29 is fitted in the guide cylinder 28. A first spring 30 is installed between the end of the first limit rod 29 and the guide cylinder 28. The first spring 30 always has a tendency to make the first limit rod 29 extend out of the guide cylinder 28. The first limit rods 29 on both sides can move closer to limit the sand box and prevent the sand box from moving on the circulating line.
[0028] A vertical hole 31 and a horizontal hole 32 which are communicated with each other are also formed in the seat frame 27. A vertical moving rod 33 is installed in the vertical hole 31. Two symmetrically arranged first inclined surfaces 34 are provided at the bottom of the vertical moving rod 33. Corresponding to the positions of the first inclined surfaces 34, a first moving block 35 and a second moving block 43 are provided at the bottom of the vertical hole 31. Second inclined surfaces 36 which are matched with the first inclined surfaces 34 are provided on both the first moving block 35 and the second moving block 43. When the vertical moving rod 33 moves downward, the two moving blocks 35 can move closer to each other through the driving of the matched inclined surfaces.
[0029] A steel wire rope 37 is installed in the horizontal hole 32. The first moving block 35 is connected to the first limiting rod 29 of the first linkage limiting mechanism through the steel wire rope 37. The second moving block 43 is connected to the first limiting rod 29 of the second linkage limiting mechanism through the steel wire rope 37. A convex plate 38 is provided at one end of the vertical moving rod 33 extending out of the vertical hole 31. A second spring 39 is sleeved on the outer periphery of the vertical moving rod 33 between the convex plate 38 and the seat frame 27. The second spring 39 always has a tendency to move the vertical moving rod 33 upward to disengage the first inclined surface 34 from the second inclined surface 36. When the vertical moving rod 33 moves downward against the elastic force of the second spring 39, the first inclined surface 34 is in contact and cooperation with the second inclined surface 36, and the first moving block 35 and the second moving block 43 move closer to each other, and the first limiting rod 29 is made to enter the guiding cylinder 28 against the elastic force of the first spring 30.
[0030] The length of the guiding cylinder 28 does not exceed the width of the seat frame 27 and will not affect the normal movement of the sand box, and the first limiting rod 29 that can extend out inside it will block the transfer of the sand box.
[0031] Before the above-mentioned structure's support plate 10 has not descended to the upper side surface of the seat frame 27, under the elastic forces of the first spring 30 and the second spring 39, the first limiting rod 29 extends out of the guiding cylinder 28 to limit the sand box, and the vertical moving rod 33 will not move downward either, and will not pull the first limiting rods 29 on the front and back sides to contract. That is, before the support plate 10 has descended to the designated position, the sand box will not enter the upper side position of the support plate 10.
[0032] Once the support plate 10 descends to the seat frame 27, it will push the vertical moving rod 33 to move downward against the elastic force of the second spring 39, as Figure 10 shown, to make the first moving block 35 and the second moving block 43 move closer, and through the transmission of the steel wire rope 37, the first limiting rods 29 on the front and back sides are made to contract into the guiding cylinder 28 against the elastic force of the first spring 30, losing the limit on the sand box. That is, the sand box can subsequently enter the upper side of the support plate 10.
[0033] When the pallet 10 drives the sand box to move upward and loses the limit on the vertical moving rod 33, the vertical moving rod 33 moves upward again. Under the elastic force of the first spring 30, the first limiting rod 29 extends out again, and the limit on the front and rear sand boxes is formed again, avoiding the interference of the sand box on the circulating line moving forward to the sand box being lifted and transferred. At the same time, when the casting in the sand box is transferred, this sand box can also fall back to the positioned transfer trolley again.
[0034] Since the sand box is placed on the transfer trolley, the vertical position of the sand box is relatively high and the position of the transfer trolley is relatively low. When the sand box is lifted, in order to effectively limit the transfer trolley at a lower position, after the casting inside the sand box is transferred, the sand box can fall back to the limited transfer trolley, as Figure 11 shown, on the guide cylinder 28 of the first linkage limiting mechanism, that is, on the guide cylinder 28 at the front end of the seat frame 27, a horizontally arranged avoidance groove 40 is opened. A connecting rod 41 is fitted in the avoidance groove 40. The upper end of the connecting rod 41 passes through the avoidance groove 40 and is connected to the first limiting rod 29. The lower end of the connecting rod 41 is connected with a horizontally arranged second limiting rod 42. The second limiting rod 42 is located below the first limiting rod 29 and can move synchronously with the first limiting rod 29. The second limiting rod 42 at a lower position can effectively limit the front side position of the transfer trolley at the bottom of the sand box, and the first limiting rod 29 at the rear side of the seat frame 27 can effectively limit the sand box at the rear side on the circulating line, forming a limit with one below and one above in the height direction.
[0035] The technical solution of the present invention is not limited within the scope of the embodiments described in the present invention. The technical content not described in detail in the present invention is all well-known technologies.
Claims
1. A case shifting mechanism, characterized in that: The invention comprises a stand (1), a horizontally arranged walking groove (2) is provided in the stand (1), a movable box-moving device is installed in the walking groove (2), the box-moving device comprises a walking frame (3), walking wheels (4) matched with the walking groove (2) are installed on both sides of the walking frame (3), a driving motor (5) is installed on one side of the walking frame (3), a gear (6) is installed on the output shaft of the driving motor (5), a rack (7) meshing with the gear (6) is installed in the walking groove (2), a sand box lifting mechanism is provided at the front and rear ends of the moving direction of the walking frame (3), the sand box lifting mechanism comprises a telescopic cylinder (8) arranged at the bottom of the walking frame (3), a lifting frame (9) is connected to the piston rod of the telescopic cylinder (8), and the lifting frame (9) A horizontally arranged support plate (10) is installed at the bottom of the lifting frame (9), and the support plate (10) extends toward the inner side of the lifting frame (9), wherein a first hinge seat (11) is provided at the bottom of the walking frame (3), a first pin shaft (12) is installed in the first hinge seat (11), a mounting seat (13) matching with the first pin shaft (12) is provided on the cylinder body of the telescopic cylinder (8), a second hinge seat (14) is installed on the lifting frame (9), a second pin shaft (15) is installed in the second hinge seat (14), an earring (16) matching with the second pin shaft (15) is installed on the piston rod of the telescopic cylinder (8), vertically arranged guide rods (17) are also installed on both sides of the lifting frame (9), and a guide sleeve (18) matching with the guide rod (17) is installed on the walking frame (3).
2. A box-moving mechanism according to claim 1, characterized in that: A walking box (19) is installed in the walking frame (3), ribs (20) are provided on all sides of the walking box (19), and a drag chain bracket (21) is also installed on one side of the walking box (19).
3. The box-moving mechanism according to claim 1, characterized in that: Guide wheels (22) are installed at the four corners of the walking frame (3), and guide pads (23) that match the guide wheels (22) are installed in the walking groove (2).
4. The transfer mechanism according to claim 1, characterized in that: A first sand scraping plate (24) is installed on the walking frame (3) on both sides of the walking wheel (4), a folding plate (25) is installed at the bottom of the supporting plate (10), a second sand scraping plate (44) is installed on the inner side of the vertical plate of the folding plate (25) through bolts, and a sand box upper limit plate (26) is installed at the bottom of the walking frame (3) inside the sand box lifting mechanism.
5. The transfer mechanism according to claim 1, wherein: A pedestal (27) is installed on a vertical frame (1) at the bottom of a pallet (10). The pedestal (27) is horizontally arranged. A first linkage limiting mechanism is installed at the front end of the pedestal (27) in the traveling direction of the sand box, and a second linkage limiting mechanism is installed at the rear end of the pedestal (27) in the traveling direction of the sand box. Both the first linkage limiting mechanism and the second linkage limiting mechanism include a guide cylinder (28) fixed to the end of the pedestal (27). A first limiting rod (29) is fitted in the guide cylinder (28). A first spring (30) is installed between the end of the first limiting rod (29) and the guide cylinder (28). The first spring (30) always has a tendency to make the first limiting rod (29) extend out of the guide cylinder (28). A vertically communicating vertical hole (31) and a horizontal hole (32) are further formed in the pedestal (27). A vertical moving rod (33) is installed in the vertical hole (31). Two symmetrically arranged first inclined surfaces (34) are provided at the bottom of the vertical moving rod (33). Corresponding to the position of the first inclined surfaces (34), a first moving block (35) and a second moving block (43) are provided at the bottom of the vertical hole (31). Second inclined surfaces (36) that cooperate with the first inclined surfaces (34) are provided on both the first moving block (35) and the second moving block (43). A steel wire rope (37) is installed in the horizontal hole (32). The first moving block (35) is connected to the first limiting rod (29) of the first linkage limiting mechanism through the steel wire rope (37), and the second moving block (43) is connected to the first limiting rod (29) of the second linkage limiting mechanism through the steel wire rope (37). A convex plate (38) is provided at one end of the vertical moving rod (33) extending out of the vertical hole (31). A second spring (39) is sleeved on the outer periphery of the vertical moving rod (33) between the convex plate (38) and the pedestal (27). The second spring (39) always has a tendency to move the vertical moving rod (33) upward to disengage the first inclined surface (34) from the second inclined surface (36). When the vertical moving rod (33) moves downward against the elastic force of the second spring (39), the first inclined surface (34) comes into contact and cooperation with the second inclined surface (36), and the first moving block (35) and the second moving block (43) move closer to each other, overcoming the elastic force of the first spring (30) to make the first limiting rod (29) enter the guide cylinder (28).
6. The transfer mechanism according to claim 5, wherein: A horizontally transverse avoidance groove (40) is formed in the guide cylinder (28) of the first linkage limiting mechanism. A connecting rod (41) is fitted in the avoidance groove (40). The upper end of the connecting rod (41) passes through the avoidance groove (40) and is connected to the first limiting rod (29). The lower end of the connecting rod (41) is connected to a horizontally arranged second limiting rod (42). The second limiting rod (42) is located below the first limiting rod (29) and can move synchronously with the first limiting rod (29).