CN214023045U

CN214023045U - Novel hardware stamping die with core pulling structure

Info

Publication number: CN214023045U
Application number: CN202022901581.XU
Authority: CN
Inventors: 茹新民; 易红宝; 粟君
Original assignee: Shenzhen Zanty Motor Co ltd
Current assignee: Shenzhen Zanty Motor Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-24
Anticipated expiration: 2030-12-03

Abstract

The utility model relates to a novel hardware stamping die of core pulling structure, the mould includes the upper die, the lower die that correspond the adaptation, the upper die is provided with stamping forming portion, the lower die is provided with the shaping chamber that corresponds with it, but the movable block of up-and-down motion is installed to the upper die, the movable block disposes first compression spring; the lower die is provided with a movable transmission block, a swinging block and a mandrel; the transmission block is provided with a second compression spring exposing the top of the transmission block, the elasticity of the second compression spring is smaller than that of the first compression spring, and the transmission block corresponds to the movable block; the swinging block is used for enabling the mandrel to respond to the action of the movable block and to move transversely to and fro compared with the forming cavity. Through the setting of transmission piece, swing piece and corresponding spring, realize the motion control to the dabber in step when mould die sinking, compound die, simple structure easily realizes, and the operation is stable.

Description

Novel hardware stamping die with core pulling structure

Technical Field

The utility model relates to a five metals stamping die, loose core structure in especially.

Background

The hardware sheet is a material of hardware elements which are very commonly used, a plurality of hardware sheets need to be processed into a round or square structure which is bent and closed for use, the processing is generally realized by adopting a stamping die, when the die is closed, a stamping forming part of an upper die is pressed towards a forming cavity, the hardware sheet of the forming cavity is stamped and formed along a mandrel, and then the mandrel is drawn out from the formed hardware sheet so as to facilitate unloading. Therefore, it is very important to arrange a transmission structure of the mandrel in the die, and the existing die generally adopts complicated modes such as pneumatic, hydraulic and the like to control the mandrel, so that the improvement space is provided.

SUMMERY OF THE UTILITY MODEL

One technical problem that this aspect of this disclosure solved is to provide a five metals stamping die of structure of loosing core has been improved.

The utility model provides a technical scheme that its technical problem adopted is: the hardware stamping die with the novel core pulling structure comprises an upper die and a lower die which are correspondingly matched, wherein the upper die is provided with a stamping forming part, the lower die is provided with a forming cavity corresponding to the lower die, the upper die is provided with a movable block capable of moving up and down, and the movable block is provided with a first compression spring to be matched with the movable block to move; the lower die is provided with a movable transmission block, a swinging block and a mandrel; the transmission block is provided with a second compression spring exposing the top of the transmission block, the elasticity of the second compression spring is smaller than that of the first compression spring, the transmission block corresponds to the movable block and is stressed in advance to move downwards during die assembly, and the transmission block is provided with a limiting device to control the downward stroke; the swinging block is provided with a first end and a second end, the first end of the swinging block is matched with the movable block, and the second end of the swinging block is matched with the mandrel, so that the mandrel can transversely reciprocate relative to the forming cavity in response to the action of the movable block.

As before novel hardware stamping die of structure of loosing core, it has bottom open-ended to cup joint the chamber to go up the mould, the movable block movable install in cup joint in the chamber, cup joint the chamber bottom with the movable block top is equipped with stroke limit structure, first compression spring both ends support respectively hold in cup joint the chamber the movable block.

According to the hardware stamping die with the novel core pulling structure, the swinging block can be installed in the lower die in a reciprocating manner, the first end of the swinging block extends into the notch of the transmission block towards one side, and the second end of the swinging block extends downwards into the notch of the mandrel.

As before novel hardware stamping die of structure of loosing core, be equipped with open-top's vertical cavity in the lower mould, the transmission piece install in the upper portion of vertical cavity, second compression spring install in vertical cavity bottom, the transmission piece with be provided with the ejector pin between the second compression spring.

One advantageous effect brought by one aspect of the present disclosure: the movable block generates downward acting force on the transmission block during die assembly of the die, the transmission block moves towards the forming cavity through the swinging block so as to correspond to a hardware sheet to be processed, the transmission block resets under the action of the spring during die opening, the core shaft is pulled out from the forming cavity through the swinging block so as to complete core pulling action, and the die assembly is simple in structure and easy to realize.

Drawings

Certain embodiments of the invention will now be described in detail, by way of example and not limitation, with reference to the figures, in which like reference numerals identify identical or similar parts or features. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale.

In the drawings:

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an internal schematic view of the mold opening state of the present invention;

FIG. 3 is a schematic diagram of the first stage of mold clamping of the present invention;

FIG. 4 is a schematic view showing the completion state of mold closing according to the present invention;

FIG. 5 is a schematic view of the core pulling structure of the present invention;

FIG. 6 is a schematic view of the hardware sheet processing variation of the present invention;

the designations in the figures illustrate the following:

1. an upper die; 2. a lower die; 3. a movable block; 4. a first compression spring; 5. a transmission block; 6. a second compression spring; 60. a top rod; 7. a swing block; 71. a first end; 72. a second end; 8. a mandrel; 9. a molding cavity; 10. a press-forming section; 100. hardware sheet material; 101. a molding state; 102. an unformed state; 103. and (4) side wings.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them.

All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

General stamping die includes mould 1, lower mould 2, goes up mould 1 and sets up stamping forming portion 10 for the five metals sheet 100 of treating processing when the compound die punches, and lower mould 2 sets up the shaping chamber 9, is used for placing five metals sheet 100 to the action for stamping forming portion 10 provides the space. Referring to fig. 6, a metal sheet 100 is generally in a strip shape, a plurality of products in an unformed state 102 are continuously distributed, a mandrel 8 is supported below a product in one unformed state 102 of the metal sheet 100 when entering a forming cavity 9, two punching columns of a rear punching forming part 10 move downwards, and downward pressure is applied to a product side wing 103 in the unformed state 102, so that the product side wing is changed from the unformed state 102 to a formed state 101. Then the mold is opened to draw the mandrel 8 out of the product in the molding state 101, and the feeding mechanism pushes the hardware sheet 100 to perform the product processing operation in the next non-molding state 102.

Referring to the attached drawings 1-5, the hardware stamping die with the novel core pulling structure is shown, the die comprises an upper die 1 and a lower die 2 which are correspondingly matched, the upper die 1 is provided with a stamping forming part 10, the lower die 2 is provided with a forming cavity 9 corresponding to the lower die, the upper die 1 is provided with a movable block 3 which can move up and down, and the movable block 3 is provided with a first compression spring 4 to be matched with the movable block to move; the lower die 2 is provided with a movable transmission block 5, a swinging block 7 and a mandrel 8; the transmission block 5 is provided with a second compression spring 6 with the top exposed, the elasticity of the second compression spring 6 is smaller than that of the first compression spring 4, the transmission block 5 corresponds to the movable block 3 so as to be stressed to move downwards in the die assembly process (before the stamping forming part 10 stamps the hardware sheet 100, the transmission block 5 moves downwards firstly), and the transmission block 5 is provided with a limiting device so as to control the downward stroke; the oscillating mass 7 has a first end 71, a second end 72, the first end 71 of which is adapted to the movable mass 3, and the second end 72 of which is adapted to the mandrel 8, so that the mandrel 8 is moved back and forth transversely with respect to the forming chamber 9 in response to the movement of the movable mass 3.

When the die is closed, the movable block 3 of the upper die 1 is firstly contacted with the transmission block 5, the transmission block 5 is stressed to move downwards, the second compression spring 6 is in an energy storage state, and the downward movement of the transmission block 5 is converted and transmitted through the swinging block 7, so that the mandrel 8 is enabled to transversely move towards the forming cavity 9 and is supported below the hardware sheet 100. The upper die 1 continues to move downwards, the transmission block 5 is provided with a limiting device, so that the downward movement of the transmission block stops, the first compression spring 4 is stressed to store energy at the moment, the movable block 3 is reversely pressed into the upper die 1, and the stamping forming part 10 moves downwards along with the upper die 1 to stamp the hardware sheet 100.

When the die is opened, the punch forming part 10 moves upwards and retracts, at the moment, the first compression spring 4 is in an energy releasing state, the transmission block 5 is kept at the tail end position of the downward stroke under the pressing action of the movable block 3, after the upper die 1 moves upwards to the corresponding position, the first compression spring 4 completely releases energy, along with the upward retraction of the movable block 3, the second compression spring 6 releases energy, the transmission block 5 moves upwards and resets, and through the conversion transmission of the swinging block 7, the mandrel 8 is transversely pulled away from the forming cavity 9 (a product in a forming state 101) through the upward movement of the transmission block 5 to return to the initial state.

Through the setting of transmission piece 5, swing piece 7 and corresponding spring, realize the motion control to dabber 8 in step when mould die sinking, compound die, simple structure easily realizes, and the operation is stable.

In some embodiments, the upper die 1 has a sleeving cavity with an opening at the bottom, the movable block 3 is movably installed in the sleeving cavity, the bottom of the sleeving cavity and the top of the movable block 3 are provided with a stroke limiting structure, and two ends of the first compression spring 4 respectively abut against the sleeving cavity and the movable block 3.

The stroke of relative motion between two structures is restricted, and there are many implementation methods in the prior art, and in the present case, the stroke control of the transmission block 5 can be realized by avoiding the arrangement of a raised step on the transmission block, and arranging a corresponding step on the wall surface of a stroke channel on the transmission block. And the stroke restriction accessible of movable block 3 sets up corresponding flange realization at movable block 3 top, cup joint the chamber bottom, and when movable block 3 was in the bottom of cup joint the chamber under the effect of first compression spring 4, both flanges formed the interference, avoided movable block 3 to break away from.

In some embodiments, the swing block 7 is reciprocally rotatably mounted in the lower mold 2, with a first end 71 extending sideways into the slot of the driving block 5 and a second end 72 extending downwards into the slot of the mandrel 8. Specifically, the swing block 7 is rotatably mounted on the lower mold 2 through a rotating shaft, and has a first end 71 with a substantially spherical end portion and nested in the notch of the driving block 5, and a second end 72 with a substantially spherical end portion and nested in the notch of the mandrel 8. When the transmission block 5 moves downwards, the first end 71 is stressed, the swinging block 7 rotates anticlockwise, and the second end 72 pushes the mandrel 8 to the forming cavity 9 transversely; when the transmission block 5 moves upwards, the first end 71 is stressed, the swing block 7 rotates clockwise, and the second end 72 takes the mandrel 8 out of the forming cavity 9 and returns to the original position, so that the core pulling action is completed.

In some embodiments, a longitudinal cavity with an open top is formed in the lower mold 2, the transmission block 5 is installed at the upper portion of the longitudinal cavity, the second compression spring 6 is installed at the bottom of the longitudinal cavity, and a push rod 60 is disposed between the transmission block 5 and the second compression spring 6. The top of the push rod 60 is larger, so that the top of the push rod can better receive the elastic force of the second compression spring 6, the upper end of the push rod can be narrowed, and the corresponding longitudinal cavity is also narrowed, so that the push rod 60 can more stably transmit the elastic force to the transmission block 5.

In addition, a supporting column for supporting the mandrel 8 may be disposed in the molding cavity 9, and when the mandrel 8 is sent to the molding cavity 9, the supporting column is abutted under the mandrel 8 to assist the mandrel 8 to resist the pressing force of the punch forming part 10.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, which may be modified, combined, and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. Novel five metals stamping die of structure of loosing core, the mould is including last mould, the lower mould that corresponds the adaptation, it is provided with stamping forming portion to go up the mould, the lower mould is provided with the shaping chamber that corresponds with it, its characterized in that:

the upper die is provided with a movable block capable of moving up and down, and the movable block is provided with a first compression spring to adapt to the movement of the movable block;

the lower die is provided with a movable transmission block, a swinging block and a mandrel;

the transmission block is provided with a second compression spring exposing the top of the transmission block, the elasticity of the second compression spring is smaller than that of the first compression spring, the transmission block corresponds to the movable block and is stressed in advance to move downwards during die assembly, and the transmission block is provided with a limiting device to control the downward stroke; the swinging block is provided with a first end and a second end, the first end of the swinging block is matched with the movable block, and the second end of the swinging block is matched with the mandrel, so that the mandrel can transversely reciprocate relative to the forming cavity in response to the action of the movable block.

2. The novel hardware stamping die with the core pulling structure as claimed in claim 1, wherein:

the upper die is provided with a sleeving cavity with an opening at the bottom, the movable block is movably arranged in the sleeving cavity, the bottom of the sleeving cavity and the top of the movable block are provided with stroke limiting structures, and two ends of the first compression spring are respectively abutted against the sleeving cavity and the movable block.

3. The novel hardware stamping die with the core pulling structure as claimed in claim 2, wherein:

the swinging block can be arranged in the lower die in a reciprocating rotating mode, the first end of the swinging block extends into the notch of the transmission block from one side, and the second end of the swinging block extends downwards into the notch of the mandrel.

4. The novel hardware stamping die with the core pulling structure as claimed in claim 3, wherein:

the lower die is provided with a longitudinal cavity with an open top, the transmission block is mounted on the upper portion of the longitudinal cavity, the second compression spring is mounted at the bottom of the longitudinal cavity, and a push rod is arranged between the transmission block and the second compression spring.