Movable trundle small disc stepping die

Abstract

The utility model discloses a movable trundle small disc stepping die which comprises a cutter, an insert is arranged at the bottom end of the cutter, a lower die is arranged outside the insert, a lower die base plate is arranged at the bottom end of the lower die, a push-out assembly is arranged at one end of the lower die base plate, the push-out assembly comprises a push plate, and the push plate is arranged on the lower die base plate. A pushing piece is arranged at the bottom end of the pushing plate, a locking block is arranged at the bottom end of the pushing plate, and a locking piece is arranged in the locking block; by utilizing the design of the insert, the push-out assembly and the locking piece, when the insert needs to be replaced, the locking bolt is rotated out of the threaded groove of the locking block by rotating the locking bolt, so that the push plate is unlocked, and the push plate is pushed to extend out of the rectangular groove under the action of the restoring force of the push spring; and the insert in the groove is pushed in the direction away from the lower die base plate, so that the insert partially extends out of the groove, and a worker can conveniently take the insert to replace the insert.

Description

Technical Field

[0001] The utility model relates to the technical field of processing molds, and particularly relates to a movable caster small plate step mold. Background Art

[0002] A movable caster consists of multiple components such as a wheel, a bearing, a bracket, and a wheel core. Among them, the small plate is a component in the movable caster bracket. During the production process, a steel plate is placed into the step mold, and the steel plate is gradually pressed into shape through the step mold. Finally, holes are drilled, and the formed small plate is separated from the steel plate. Finally, a cutter is needed to cut the steel plate, and the cutting process requires the cutter to cooperate with the cutter insert of the lower mold. During the long-term cutting process, the cutter insert will be damaged. Therefore, the cutter insert needs to be replaced. The existing cutter insert is directly clamped and installed by matching its own shape with the opening of the lower mold. In order to reduce the shaking of the insert, the opening size of the lower mold fits the external size of the cutter insert. Thus, when replacing the cutter insert, since the cutter insert is a metal part and fits perfectly in the opening, there is a lack of a force application point when taking out the cutter insert, resulting in difficulty for the staff to take out the cutter insert with their hands. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a movable caster small plate step mold to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A movable caster small plate step mold includes a cutter, a bottom end of the cutter is provided with an insert for cooperating with the cutter, an outside of the insert is provided with a lower mold for installing the insert, a bottom end of the lower mold is provided with a lower mold backing plate for installing the lower mold, and one end of the lower mold backing plate is provided with a pushing component for pushing out the insert;

[0005] The pushing component includes a push plate, a bottom end of the push plate is provided with a pushing member, a bottom end of the push plate is provided with a locking block for restricting movement of the push plate, and an inside of the locking block is provided with a locking member for locking a position of the locking block.

[0006] Preferably, a back surface of the cutter is fixedly connected with an upper mold clamping plate for installing the cutter, a bottom end of the upper mold clamping plate is provided with an upper mold stripper plate for stripping, and a side of the upper mold stripper plate opposite to the upper mold clamping plate is provided with a stripping spring for pushing the upper mold stripper plate.

[0007] Preferably, a front surface of the lower mold is provided with a groove for inserting the insert, and a bottom end of the lower mold is fixedly connected with a top end of the lower mold backing plate.

[0008] Preferably, a rectangular groove for installing the pushing component is formed at the top end of the lower die backing plate, and a round hole for inserting the locking component is formed on the front surface of the inner wall of the rectangular groove.

[0009] Preferably, the pushing component includes a pushing spring and a damping rod. The bottom ends of the pushing spring and the damping rod are fixedly connected to the bottom end of the inner wall of the rectangular groove, and the top ends of the pushing spring and the damping rod are respectively fixedly connected to the bottom end of the push plate.

[0010] Preferably, the pushing spring is sleeved on the outer wall of the damping rod.

[0011] Preferably, the locking component includes a locking bolt. The bottom end of the push plate is fixedly connected to the top end of the locking block, and a threaded groove for threading and inserting the locking bolt is formed on the front surface of the locking block.

[0012] Technical effects and advantages of the present utility model:

[0013] With the design of the insert, the pushing component and the locking component in the present utility model, when the insert needs to be replaced, by rotating the locking bolt, the locking bolt is turned out from the threaded groove of the locking block, so as to release the locking of the push plate. Under the action of the restoring force of the pushing spring, the push plate is pushed to extend out of the rectangular groove, and the insert inside the groove is pushed in the direction away from the lower die backing plate, so that part of the insert extends out of the groove, which is convenient for the staff to take and replace the insert. Brief description of the drawings

[0014] Figure 1 is an exploded structural schematic diagram of the present utility model.

[0015] Figure 2 is the Figure 1 enlarged structural schematic diagram of A in the present utility model.

[0016] Figure 3 is a three-dimensional structural schematic diagram of the pushing component of the present utility model.

[0017] Figure 4 is a three-dimensional structural schematic diagram of the pushing component of the present utility model.

[0018] In the figure: 1, cutting tool; 2, upper die clamping plate; 3, upper die stripping plate; 4, stripping spring; 5, lower die; 6, insert; 7, lower die backing plate; 8, pushing component; 81, push plate; 82, pushing component; 821, pushing spring; 822, damping rod; 83, locking block; 9, locking bolt. Detailed implementation manners

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model provides a kind of movable caster small plate stepping die as Figures 1-4 shown, which includes a cutting knife 1. A insert 6 for cooperating with the cutting knife 1 is arranged at the bottom end of the cutting knife 1. An under die 5 for installing the insert 6 is arranged outside the insert 6. An under die backing plate 7 for installing the under die 5 is arranged at the bottom end of the under die 5. A pushing component 8 for pushing out the insert 6 is arranged at one end of the under die backing plate 7.

[0021] The pushing component 8 includes a push plate 81. A pushing member 82 is arranged at the bottom end of the push plate 81. A locking block 83 for restricting the movement of the push plate 81 is arranged at the bottom end of the push plate 81. A locking member for locking the position of the locking block 83 is arranged inside the locking block 83.

[0022] Specifically, a top die clamping plate 2 for installing the cutting knife 1 is fixedly connected to the back surface of the cutting knife 1. A top die stripping plate 3 for stripping is arranged at the bottom end of the top die clamping plate 2. A stripping spring 4 for pushing the top die stripping plate 3 is arranged on the side of the top die stripping plate 3 and the top die clamping plate 2 facing each other. A groove for inserting the insert 6 is formed on the front surface of the under die 5. The bottom end of the under die 5 is fixedly connected to the top end of the under die backing plate 7.

[0023] Furthermore, the cutting knife 1 and the top die clamping plate 2 are fixedly connected by bolts. The top and bottom ends of the stripping spring 4 are respectively fixedly connected to one end of the top die clamping plate 2 and the top die stripping plate 3 facing each other. The groove formed on the front surface of the under die 5 fits the insert 6. Thus, when the cutting knife 1 cuts the steel plate, it will cooperate with the insert 6 to cut off the steel plate. The under die 5 and the under die backing plate 7 are fixedly connected by bolts. A top die forming core is arranged inside the top die clamping plate 2. A forming insert cooperating with the top die forming core is arranged inside the under die 5. The top die forming core and the forming insert are used for the forming processing of the movable caster small plate. Through the arrangement of multiple top die forming cores and forming inserts with different specifications, the step-by-step moving steel plate is gradually pressed into the shape of the lower plate. This technology is the prior art of the existing movable caster small plate stepping production die.

[0024] Specifically, a rectangular groove for installing the ejecting component 8 is provided at the top end of the lower die backing plate 7. A round hole for inserting the locking component is provided on the front surface of the inner wall of the rectangular groove. The pushing member 82 includes a pushing spring 821 and a damping rod 822. The bottom ends of the pushing spring 821 and the damping rod 822 are fixedly connected to the bottom end of the inner wall of the rectangular groove. The top ends of the pushing spring 821 and the damping rod 822 are respectively fixedly connected to the bottom end of the push plate 81. The pushing spring 821 is sleeved on the outer wall of the damping rod 822. The locking component includes a locking bolt 9. The bottom end of the push plate 81 is fixedly connected to the top end of the locking block 83. A threaded groove for threading and inserting the locking bolt 9 is provided on the front surface of the locking block 83.

[0025] Furthermore, the size of the horizontal cross-section of the rectangular groove is 1.01 times the size of the horizontal cross-section of the push plate 81. The diameter of the round hole is 1.01 times the outer diameter of the rod body of the locking bolt 9. The inner wall of the round hole is a smooth inner wall. The pushing members 82 are symmetrically arranged on both sides of the bottom end of the push plate 81. The top and bottom ends of the pushing spring 821 and the damping rod 822 are respectively welded and fixed to the bottom end of the push plate 81 and the bottom end of the inner wall of the rectangular groove. When there is no external force pressing the push plate 81, the push plate 81 extends out of the rectangular groove under the action of the pushing spring 821. The locking block 83 is arranged in the middle of the bottom end of the push plate 81. The top end of the locking block 83 is welded and fixed to the bottom end of the push plate 81. The damping rod 822 is provided to prevent the restoring force of the pushing spring 821 from pushing the push plate 81 after unlocking the locking block 83, and the push plate 81 pushing the insert 6, causing the insert 6 to quickly pop out of the groove and hurting the staff. The thread on the inner wall of the threaded groove meshes with the thread on the outer wall of the locking bolt 9. When installing the insert 6, the insert 6 is inserted into the groove. The insert 6 presses the push plate 81, and the push plate 81 presses the pushing members 82 at both ends. When the insert 6 is completely inserted into the groove, the threaded groove of the locking block 83 is aligned with the round hole. At this time, the locking bolt 9 is inserted into the round hole and threadedly inserted and connected with the threaded groove, so as to limit the movement of the locking block 83 and the movement of the push plate 81, so that the insert 6 will not be pushed out of the groove by the push plate 81. When replacing the insert 6, by removing the locking bolt 9, under the action of the restoring force of the pushing spring 821, the push plate 81 moves away from the lower die backing plate 7, and the push plate 81 pushes the insert 6 to partially extend out of the groove, so as to facilitate the staff to apply force to the insert 6 and take and replace the insert 6.

[0026] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A small-disk stepping die for a swivel caster, comprising a cutting tool (1), and an insert (6) for cooperating with the cutting tool (1) is arranged at the bottom end of the cutting tool (1), characterized in that, The outside of the insert (6) is provided with a lower die (5) for installing the insert (6). The bottom end of the lower die (5) is provided with a lower die backing plate (7) for installing the lower die (5). One end of the lower die backing plate (7) is provided with a pushing component (8) for pushing out the insert (6). The pushing component (8) includes a push plate (81). The bottom end of the push plate (81) is provided with a pushing member (82). The bottom end of the push plate (81) is provided with a locking block (83) for restricting the movement of the push plate (81). The inside of the locking block (83) is provided with a locking member for locking the position of the locking block (83).

2. The stepping die for the small plate of a swivel caster according to claim 1, characterized in that, The back of the cutting tool (1) is fixedly connected with an upper die clamping plate (2) for installing the cutting tool (1). The bottom end of the upper die clamping plate (2) is provided with an upper die stripper plate (3) for stripping. A stripper spring (4) for pushing the upper die stripper plate (3) is arranged on one side of the upper die stripper plate (3) and the upper die clamping plate (2) facing each other.

3. The stepping die for the small plate of a swivel caster according to claim 1, characterized in that, A groove for inserting the insert (6) is formed in the front of the lower die (5). The bottom end of the lower die (5) is fixedly connected with the top end of the lower die backing plate (7).

4. The stepping die for the small plate of a swivel caster according to claim 1, characterized in that A rectangular groove for installing the pushing component (8) is formed in the top end of the lower die backing plate (7). A round hole for inserting the locking member is formed in the front of the inner wall of the rectangular groove.

5. The stepping die for the small plate of a swivel caster according to claim 4, characterized in that, The pushing member (82) includes a pushing spring (821) and a damping rod (822). The bottom ends of the pushing spring (821) and the damping rod (822) are fixedly connected with the bottom end of the inner wall of the rectangular groove. The top ends of the pushing spring (821) and the damping rod (822) are respectively fixedly connected with the bottom end of the push plate (81).

6. The small-step progressive die for a swivel caster according to claim 5, wherein, The pushing spring (821) is sleeved on the outer wall of the damping rod (822).

7. The one kind of movable caster small plate step-by-step mold according to claim 4, characterized in that The locking member includes a locking bolt (9). The bottom end of the push plate (81) is fixedly connected with the top end of the locking block (83). A threaded groove for threading the locking bolt (9) is formed in the front of the locking block (83).

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