Die changing trolley capable of being adjusted in four directions

Abstract

The utility model discloses a die changing trolley capable of being adjusted in four directions, which comprises a trolley body, and the trolley body comprises an axle, wheels arranged at two ends of the axle and a bearing plate movably arranged above the trolley body. The axles are provided with forward motors used for controlling the vehicle body to move front and back, and a translation motor used for controlling the force bearing plate to move left and right is further arranged between the two axles. A pin shaft is arranged in the force bearing plate, the pin shaft is connected with the translation motor through a lead screw nut, the lead screw nut enables rotation of the translation motor to be converted into translation of the pin shaft, and the pin shaft drives the force bearing plate to move. Adjustment of the trolley in front, back, left and right directions is achieved through the forward motor and the translation motor, and the problem that in the prior art, the trolley cannot be adjusted in the left-right direction is solved.

Description

Technical Field

[0001] This utility model relates to the field of mold changing technology, and in particular to a mold changing trolley that can be adjusted in four directions. Background Technology

[0002] The molds in large presses are also large in size, and usually require the assistance of machines to change the molds. Existing mold changing devices mostly use moving worktables, but when using worktables to change molds, they need to withstand the tonnage of the press. The mold changing trolleys used can only move in and out, and cannot adjust the position. Summary of the Invention

[0003] This utility model provides a mold-changing trolley that can be adjusted in four directions, in order to solve the problem that in the prior art, the mold-changing trolley can only move in and out and cannot achieve position adjustment.

[0004] According to one aspect of the present invention, a four-way adjustable mold-changing trolley is provided, comprising a trolley body, the trolley body including an axle, wheels disposed at both ends of the axle, and a support plate movably disposed above the trolley body; a forward motor for controlling the forward and backward movement of the trolley body is disposed on the axle, and a translation motor for controlling the left and right movement of the support plate is disposed between the two axles; a pin is disposed inside the support plate, the pin being connected to the translation motor via a lead screw and nut, the lead screw and nut converting the rotation of the translation motor into the translation of the pin, and the pin driving the support plate to move.

[0005] Furthermore, a one-way thrust ball bearing is also fitted onto the lead screw of the lead screw nut, and the one-way thrust ball bearing is fixed by a bearing support seat.

[0006] Furthermore, the vehicle body also includes a support frame, the axle is fixed below the support frame, and the load-bearing plate is movably fixed above the support frame.

[0007] Furthermore, the support frame is provided with a guide groove, and the nut of the lead screw nut moves within the guide groove. A guide plate is fixed below the guide groove to restrict the longitudinal movement of the lead screw nut.

[0008] Furthermore, one end of the pin is fixed to the bearing plate, and the other end is fixed to the nut of the lead screw nut.

[0009] Furthermore, the translation motor and the lead screw nut are connected by a flange coupling.

[0010] Furthermore, the axle includes a front axle and a rear axle, and the forward motor is mounted on the front axle.

[0011] Furthermore, the axle is fixed to the vehicle body by a bearing seat, the wheel is keyed to the axle, and is fixed on the outside of the wheel by a cover plate, so that the wheel is positioned between the cover plate and the bearing seat.

[0012] Furthermore, the forward motor and the axle are connected by a gear set for gear transmission. The gear set includes a small gear disposed at the output end of the forward motor and a large gear disposed on the axle. The large gear meshes with the small gear and is fixedly connected to the axle.

[0013] Furthermore, the wheel moves on the rail, and a limiting ring protruding outward is provided on the inner side of the wheel, so that the limiting ring is tightly attached to the inner edge of the rail.

[0014] Furthermore, an adjusting rod is provided between the two rails. The adjusting rod is fixed to the rail, and the distance between the rails is made consistent with the distance between the wheels by adjusting the position of the adjusting rod and the fixed position of the rail.

[0015] Furthermore, a limit block is provided at the end of the rail.

[0016] Furthermore, rollers for moving the load-bearing plate left and right are provided between the load-bearing plate and the vehicle body, and cam bearing followers are connected to the front and rear sides of the load-bearing plate.

[0017] Furthermore, the forward motor and the translation motor are worm gear motors.

[0018] The beneficial effects of this utility model embodiment are as follows: This utility model realizes the adjustment of the trolley in four directions (front, back, left, and right) by using a forward motor set on the axle and a translation motor set on the trolley body, which makes it more convenient for users to adjust the mold alignment and prevents damage to the press caused by the press deflection due to improper mold installation. It solves the pain point that the trolley cannot achieve left and right adjustment in the prior art.

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0021] Figure 1This is a side view of a mold-changing trolley that can be adjusted in four directions according to this utility model.

[0022] Figure 2 This is a top view of a mold-changing trolley that can be adjusted in four directions according to this utility model.

[0023] Figure 3 This utility model Figure 2 Cross-sectional view of AA.

[0024] Figure 4 This utility model Figure 2 Cross-sectional view of BB in the middle.

[0025] Figure 5 This utility model Figure 3 Enlarged view of section I.

[0026] Figure 6 This utility model Figure 3 Enlarged view of section II.

[0027] Figure 7 This utility model Figure 4 Enlarged view of section III.

[0028] Figure 8 This utility model Figure 4 Enlarged view of section IV.

[0029] Figure 9 This is a schematic diagram of the support frame in a mold-changing trolley that can be adjusted in four directions according to this utility model.

[0030] Figure 10 This utility model Figure 2 Enlarged view of small and medium-sized vehicles.

[0031] In the diagram: 1 is the vehicle body, 2 is the axle, 3 is the embedded part, 4 is the rail, 5 is the limit block, 6 is the adjusting rod, 7 is the front axle, 8 is the rear axle, 9 is the forward motor, 10 is the gear set, 11 is the translation motor, 12 is the flange coupling, 13 is the bearing support seat, 14 is the guide plate, 15 is the support plate, 16 is the support frame, 17 is the wheel, 18 is the lead screw and nut, 19 is the cover plate, 20 is the one-way thrust ball bearing, 21 is the lead screw, 22 is the nut, 23 is the pin, 24 is the roller, 25 is the cam bearing follower, 26 is the signal switch, 27 is the pinion, 28 is the gear, 29 is the guide groove, and 30 is the bearing seat. Detailed Implementation

[0032] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0033] In the description of this utility model, it should be understood that the terms "above", "below", "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship during use, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] See appendix Figure 1-10 This utility model provides a four-way adjustable mold changing trolley, including a trolley body 1. The trolley body 1 includes an axle 2, wheels 17 disposed at both ends of the axle, and a support plate 15 movably disposed above the trolley body 1. A forward motor 9 for controlling the forward and backward movement of the trolley body 1 is disposed on the axle, and a translation motor 11 for controlling the left and right movement of the support plate 15 is disposed between the two axles. A pin 23 is disposed inside the support plate 15. The pin 23 is connected to the translation motor 11 through a screw nut 18. The screw nut 18 converts the rotation of the translation motor 11 into the translation of the pin 23, and the pin 23 drives the support plate 15 to move.

[0036] This invention uses a forward motor 9 mounted on axle 2 to drive the trolley to move back and forth. Since the mold-changing trolley moves on a track, existing technologies only allow for back-and-forth movement. If the mold is not centered after being hoisted onto the trolley, left-right adjustment is not possible. Therefore, this invention uses a translation motor 11 between the two axles 2. The translation motor 11 drives the lead screw nut 18 to rotate, converting the rotation of the lead screw 21 into the left-right movement of the nut 22. The pin 23 also moves left and right under the influence of the lead screw nut 18, simultaneously driving the load-bearing plate 15 to move left and right.

[0037] To prevent the deflection force of the nut 22 from directly acting on the translation motor 11 during movement, a one-way thrust ball bearing 20 is also fitted onto the lead screw 21 of the lead screw nut 18. The one-way thrust ball bearing 20 is fixed by the bearing support 13. When the nut 22 moves left or right, it will generate a reverse force on the lead screw 21. To avoid the influence of the reverse force on the translation motor 11, a one-way thrust ball bearing 20 is installed in the bearing support 13 to bear the generated reaction force, thereby eliminating the influence on the translation motor 11.

[0038] To facilitate the left and right movement of the load-bearing plate 15, the vehicle body 1 also includes a support frame 16, with the axle fixed below the support frame 16 and the load-bearing plate 15 movably fixed above the support frame 16.

[0039] The support frame 16 is provided with a guide groove 29. The nut of the lead screw nut 18 moves within the guide groove 29. A guide plate 14 is fixed below the guide groove 29 to limit the longitudinal movement of the lead screw nut 18. When it is necessary to adjust the left and right position of the mold changing trolley, the translation motor 11 is started. The translation motor 11 drives the nut 22 of the lower lead screw nut 18 to move left and right within the guide groove 29. The guide groove limits the nut in the left and right directions to prevent the load-bearing plate 15 from shifting excessively. At the same time, the guide plate 14 is fixed below the guide groove. The nut of the lead screw nut 18 passes through the guide plate 14, which limits the nut 22. The guide plate 14 is used to support the weight of the lead screw nut 18 and facilitates the replacement of the lead screw nut 18 during maintenance.

[0040] One end of the pin 23 is fixed to the support plate 15, and the other end is fixed to the nut 22 of the lead screw nut 18. The pin 23 is fixed to the support plate 15. When the pin 23 moves, it drives the support plate 15 to move left and right at the same time, so as to adjust the left and right position of the trolley.

[0041] To facilitate the connection between the translation motor 11 and the lead screw nut 18, the translation motor 11 and the lead screw nut 18 are connected by a flange coupling 12.

[0042] The axle 2 includes a front axle 7 and a rear axle 8, with a forward motor 9 mounted on the front axle 7. The forward motor 9 can be mounted on the front axle 7 to drive the front axle 7, or it can be mounted on the rear axle 8 to drive the rear axle 8. In this invention, it is preferably mounted on the front axle 7.

[0043] To prevent the wheels 17 from falling off and to allow the wheels 17 to better support the movement of the vehicle body 1, the axle is fixed to the vehicle body 1 via bearing seats 30. The wheels 17 are keyed to the axle 2 and fixed to the outside of the wheels 17 via cover plates 19, so that the wheels 17 are positioned between the cover plates 19 and the bearing seats 30. The size of the bearing seats 30 is set according to the weight of the mold to be supported, and the wheels 17, bearing seats, and cover plates 19 at both ends of the axle are symmetrically arranged.

[0044] The forward motor 9 is connected to the axle via a gear set 10. The gear set 10 includes a small gear 27 located at the output end of the forward motor 9 and a large gear 28 located on the axle. The large gear 28 meshes with the small gear 27 and is fixedly connected to the axle 2. When the trolley moves forward, the forward motor 9 drives the small gear 27 to rotate, which in turn drives the large gear 28. The large gear 28 rotates synchronously with the axle, thus realizing the forward and backward movement of the wheel 17. When the weight of the mold to be supported is large, a bearing seat can be added between the forward motor 9 and the small gear to bear the meshing force between the large gear and the small gear.

[0045] Wheel 17 moves on rail 4. A protruding limiting ring is provided on the inner side of wheel 17, ensuring it fits snugly against the inner edge of rail 4. An adjusting rod 7 is installed between the two rails 4, fixed to the rail 4. Adjusting the position of the adjusting rod 7 and the rail 4 ensures the distance between the rails 4 matches the distance between the wheels 17. Utilizing rail 4 for guiding movement significantly reduces welding costs and simplifies the structure compared to existing technologies that often use quenched plates and guide grooves. The limiting ring on the inner side of wheel 17 forms a moving guide on the inner edge of rail 4. To further define the position of rail 4 and ensure smooth trolley operation, an adjusting rod 7 is installed between the two rails 4. Holes are drilled in the rails 4 to fix the adjusting rod 7, and then the embedded parts 3 on the rails 4 are poured into the foundation for more accurate positioning.

[0046] To prevent the trolley from running off the rail 4, a limit block 5 is installed at the end of the rail 4.

[0047] To adjust the left and right position of the mold, rollers 24 are installed between the support plate 15 and the vehicle body 1 for the left and right movement of the support plate 15. The rollers 24 reduce frictional resistance during movement. When the mold position is asymmetrical, the translation motor 11 drives the support plate 15 to move left and right relative to the vehicle body 1 on the rollers 24 until the mold is in the correct position. Cam bearing followers 25 are connected to the front and rear sides of the support plate 15 for auxiliary guidance. A hardened plate is also provided on the contact surface between the rollers 24 and the support plate 15 to increase the wear resistance of the support plate 15.

[0048] The forward motor 9 and the translation motor 11 are worm gear motors, which are self-locking. Both the forward motor 9 and the translation motor 11 are controlled by frequency converters and can be remotely controlled.

[0049] In a preferred embodiment, a signal switch 26 is also provided on the load-bearing plate 15. The signal switch 26 is located at the position of the pin 23 and uses the pin 23 as a limit impact head.

[0050] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0051] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A mold-changing trolley that can be adjusted in four directions, characterized in that: The vehicle includes a vehicle body, which includes axles, wheels at both ends of the axles, and a load-bearing plate movably mounted on the top of the vehicle body. A forward motor for controlling the forward and backward movement of the vehicle body is mounted on the axles, and a translation motor for controlling the left and right movement of the load-bearing plate is also mounted between the two axles. A pin is mounted inside the load-bearing plate, and the pin is connected to the translation motor via a screw and nut. The screw and nut convert the rotation of the translation motor into the translation of the pin, and the pin drives the load-bearing plate to move.

2. The four-way adjustable mold-changing trolley as described in claim 1, characterized in that: A one-way thrust ball bearing is also fitted on the lead screw of the lead screw nut, and the one-way thrust ball bearing is fixed by a bearing support seat.

3. The four-way adjustable mold-changing trolley as described in claim 1, characterized in that: The vehicle body also includes a support frame, the axle is fixed below the support frame, and the load-bearing plate is movably fixed above the support frame.

4. The four-way adjustable mold-changing trolley as described in claim 3, characterized in that: The support frame is provided with a guide groove, and the nut of the lead screw nut moves in the guide groove. A guide plate is fixed below the guide groove to limit the longitudinal movement of the lead screw nut.

5. The four-way adjustable mold-changing trolley as described in claim 4, characterized in that: One end of the pin is fixed to the bearing plate, and the other end is fixed to the nut of the lead screw nut.

6. The four-way adjustable mold-changing trolley as described in claim 1, characterized in that: The axle is fixed to the vehicle body by a bearing seat, the wheel is keyed to the axle, and is fixed on the outside of the wheel by a cover plate, so that the wheel is positioned between the cover plate and the bearing seat.

7. The four-way adjustable mold-changing trolley as described in claim 1, characterized in that: The forward motor and the axle are connected by a gear set for gear transmission. The gear set includes a small gear at the output end of the forward motor and a large gear on the axle. The large gear meshes with the small gear and is fixedly connected to the axle.

8. The four-way adjustable mold-changing trolley as described in claim 1, characterized in that: A roller is provided between the load-bearing plate and the vehicle body for the load-bearing plate to move left and right, and a cam bearing follower is connected to the front and rear sides of the load-bearing plate.

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