CN110899516B

CN110899516B - Ejection and demolding mechanism applied to stamping die

Info

Publication number: CN110899516B
Application number: CN201911257456.5A
Authority: CN
Inventors: 吕国良
Original assignee: Wenzhou Taiyuan Mold Co ltd
Current assignee: WENZHOU TAIYUAN MOLD Co.,Ltd.
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-09-11
Anticipated expiration: 2039-12-10
Also published as: CN110899516A

Abstract

The invention provides an ejection demoulding mechanism applied to a stamping die, relates to the field of die design, and solves the problems that the ejection demoulding mechanism only can be suitable for parts with high iron or hardness, and the parts are easy to deform when the softer parts are ejected; the ejection force cannot be quickly adjusted according to the adhesive force of the part. An ejection demoulding mechanism applied to a stamping die comprises a punch and a pressing block; the top end face of the punch is fixedly connected with a support frame through a bolt. Because of gas outlet channel and compressed gas cylinder are linked together through the pipeline, and gas outlet channel comprises an annular channel and six cylindricality passageways, and six cylindricality passageways of accessible discharge simultaneously in gaseous entering into the annular channel to make gaseous can be even with the part contact, prevent that part local atress from resulting in the failure phenomenon of drawing of patterns, with current device relative ratio, when carrying out the inconvenient use push rod structure of drawing of patterns to softer part, can also realize the drawing of patterns through compressed gas.

Description

Ejection and demolding mechanism applied to stamping die

Technical Field

The invention belongs to the technical field of mold design, and particularly relates to an ejection demolding mechanism applied to a stamping mold.

Background

During stamping, after stamping is finished due to the shape of the part and other reasons, the part is easy to continuously stick to a punch due to factors such as clamping force and the like, and continuous stamping is affected, so that an ejection and demolding mechanism is needed to eject the part to realize part demolding.

As in application No.: the invention discloses a secondary ejection demoulding mechanism, which comprises an upper ejector plate and a lower ejector plate, and further comprises a guide element, wherein the guide element is movably matched with the ejection unit; the ejection unit further comprises a locking element and a sliding block, the locking element is movably connected with the upper ejector plate and is connected with the lower ejector plate, the sliding block is slidably arranged in the upper ejector plate, the sliding block is matched with the locking element to lock the upper ejector plate, the secondary ejection demolding mechanism adopts a mechanical structure, particularly a secondary ejection driving structure, non-mechanical driving structures such as oil cylinders are effectively avoided, and therefore the whole mold is simple in structure, the mold manufacturing cost is reduced, the product molding cycle is shortened, the reliability of the mold can be improved, and the service life of the mold can reach more than 50 thousands.

Based on the application number: cn201611024806.x, the search of the patent, although this application mould simple structure, mould cost of manufacture reduce, and shorten the product molding cycle, still have following several shortcomings:

one is that the practicability is poor, although the application can realize secondary ejection, the application can only be suitable for parts made of iron or with higher hardness, and the parts are easy to deform when the softer parts are ejected; moreover, the adjustability is lower, and above-mentioned application structure is fixed, can not realize the quick adjustment of ejection force size according to the adhesive force size of part.

In view of the above, the present invention provides an ejection and demolding mechanism applied to a stamping die, which is improved in view of the existing structure and defects, so as to achieve the purpose of higher practical value.

Disclosure of Invention

In order to solve the technical problems, the invention provides an ejection and demolding mechanism applied to a stamping die, which aims to solve the problems that the prior art is poor in practicability, the application can realize secondary ejection, but the application can only be applied to parts with iron or high hardness, and the parts are easy to deform when the softer parts are ejected; moreover, the adjustability is lower, and the structure of the above-mentioned application is fixed, can not realize the quick adjustment of ejection force size according to the adhesive force size of part problem.

The invention relates to an ejection demoulding mechanism applied to a stamping die, which is achieved by the following specific technical means:

an ejection demoulding mechanism applied to a stamping die comprises a punch and a pressing block; the top end face of the punch is fixedly connected with a support frame through a bolt, and the top end face of the punch is also fixedly connected with an elastic bayonet lock through a bolt; the punching head is internally provided with a push rod structure in a sliding connection mode, a compressed gas cylinder is installed at the top of the punching head, and a punching head installation frame is welded on the top end face of the punching head; the pressing block is fixed on the shell of the stamping structure through a bolt.

Furthermore, a push rod sliding hole is formed in the center of the bottom of the punch, and the bottom of the push rod sliding hole is of a conical structure.

Further, the punch further comprises an air outlet channel, the air outlet channel is communicated with the compressed gas cylinder through a pipeline, and the air outlet channel consists of an annular channel and six cylindrical channels.

Furthermore, the support frame comprises an adjusting seat, an adjusting nut pipe and a support plate, the left end face of the support frame is welded with the rectangular block-shaped adjusting seat, and the adjusting seat is in threaded connection with the adjusting nut pipe; a supporting plate is welded above the left end face of the supporting frame, and a circular hole is formed in the supporting plate.

Furthermore, the push rod structure comprises a push rod main body, a baffle ring and a spring, wherein the push rod main body on the push rod structure is of a rod-shaped structure, and the push rod main body is connected in the push rod sliding hole in a sliding manner; the push rod is characterized in that a baffle ring is welded on the push rod body, a spring is sleeved on the outer wall of the push rod body and located above the baffle ring, and the head end of the spring is in contact with the adjusting nut pipe.

Furthermore, the outer wall of the rotating handle of the adjusting nut tube is provided with a ring of teeth in an annular array shape, and the teeth are meshed with the elastic bayonet lock.

Furthermore, the push rod structure includes a stud and an adjusting nut, a stud is welded on the top end face of the push rod main body, the stud penetrates through the circular hole of the supporting plate, and the stud is connected with the adjusting nut in a threaded mode.

Further, when the stamping head mounting rack is lifted upwards by 10cm, the compressed air cylinder is contacted with the pressing block.

Compared with the prior art, the invention has the following beneficial effects:

the device is arranged by matching a punch, a support frame, an elastic clamping pin and a push rod structure, firstly, due to the arrangement of an adjusting nut pipe and the elastic clamping pin, firstly, the adjustment of the tightness of a spring can be realized by rotating the adjusting nut pipe, so that the adjustment of the thrust of a push rod main body is realized, secondly, a ring of teeth are arranged on the outer wall of a rotating handle of the adjusting nut pipe in an annular array shape and are meshed with the elastic clamping pin, the locking of the adjusting nut pipe can be realized by matching the elastic clamping pin with the upper teeth of the adjusting nut pipe, and the phenomenon that the adjusting nut pipe cannot be demolded due to looseness in the use process is prevented; the second, because of push rod sliding hole bottom is the toper structure, so in the use, can improve closed smooth and easy nature between push rod structure and the push rod sliding hole, prevent that the push rod structure from leading to seriously because of wearing and tearing appear the card phenomenon of dying when closed with the push rod sliding hole, and with current device relative ratio, the quick adjustment adjustability that this device can realize different promotion dynamics is higher, and the structure is healthy and full can be at the automatic shutting of adjustment back.

This device passes through the setting of compressed gas cylinder and briquetting, compressed gas cylinder and briquetting touch when the first mounting bracket of punching press upwards rises 10cm, the extrusion through the briquetting can be with the gaseous realization gas drawing of patterns in the compressed gas cylinder, at this moment, be linked together through the pipeline with compressed gas cylinder because of the passageway of giving vent to anger, and the passageway of giving vent to anger comprises an annular channel and six cylindricality passageways, six cylindricality passageways of back accessible discharge simultaneously in gaseous entering into the annular channel, thereby make gaseous and part contact that can be even, prevent that the local atress of part from leading to drawing of patterns failure phenomenon, with current device relative ratio, this device practicality is higher, when carrying out the inconvenient use push rod structure of drawing of patterns to softer part, can also realize the drawing of patterns through compressed gas.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is a schematic axial view of the present invention in another direction of fig. 1.

Fig. 3 is a partial sectional structural schematic view of the present invention.

Fig. 4 is an enlarged schematic view of fig. 3 a according to the present invention.

Fig. 5 is an enlarged view of the structure of fig. 3B according to the present invention.

Fig. 6 is an enlarged view of the structure of fig. 3C according to the present invention.

Fig. 7 is a schematic front view of the present invention.

Fig. 8 is an enlarged view of fig. 7D according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a punch; 101. a push rod sliding hole; 102. an air outlet channel; 2. a support frame; 201. an adjusting seat; 202. adjusting the nut tube; 203. a support plate; 3. an elastic bayonet lock; 4. a push rod structure; 401. a push rod body; 402. a baffle ring; 403. a spring; 404. a stud; 405. adjusting the nut; 5. a compressed gas cylinder; 6. briquetting; 7. and a stamping head mounting frame.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 8:

the invention provides an ejection demoulding mechanism applied to a stamping die, which comprises a punch 1 and a pressing block 6; the top end face of the punch 1 is fixedly connected with a support frame 2 through a bolt, and the top end face of the punch 1 is also fixedly connected with an elastic bayonet 3 through a bolt; referring to fig. 3 and 5, the supporting frame 2 includes an adjusting base 201, an adjusting nut pipe 202 and a supporting plate 203, the left end face of the supporting frame 2 is welded with the adjusting base 201 in a rectangular block shape, and the adjusting base 201 is connected with the adjusting nut pipe 202 in a threaded manner; a supporting plate 203 is welded above the left end face of the supporting frame 2, and a circular hole is formed in the supporting plate 203; a push rod structure 4 is connected in the punch 1 in a sliding mode, a compressed gas cylinder 5 is installed at the top of the punch 1, and a punching head installation frame 7 is welded on the top end face of the punch 1; the pressing block 6 is fixed on the stamping structure shell through a bolt; referring to fig. 7, when the ram mounting bracket 7 is lifted up by 10cm, the compressed gas cylinder 5 contacts the pressing block 6, and gas in the compressed gas cylinder 5 can be squeezed out by the pressing of the pressing block 6, so that gas stripping is realized.

Referring to fig. 3 and 6, a push rod sliding hole 101 is formed in the center of the bottom of the punch 1, and the bottom of the push rod sliding hole 101 is of a conical structure, so that in the using process, the smoothness of closing between the push rod structure 4 and the push rod sliding hole 101 can be improved, and the phenomenon that the push rod structure 4 is blocked when being closed with the push rod sliding hole 101 due to serious abrasion is prevented.

Referring to fig. 6, the punch 1 further includes an air outlet channel 102, the air outlet channel 102 is communicated with the compressed gas cylinder 5 through a pipeline, and the air outlet channel 102 is composed of an annular channel and six cylindrical channels, and when gas enters the annular channel, the gas can be discharged through the six cylindrical channels at the same time, so that the gas can uniformly contact with a part, and the phenomenon of demoulding failure caused by local stress of the part is prevented.

Referring to fig. 7, the push rod structure 4 includes a push rod body 401, a stop ring 402 and a spring 403, the push rod body 401 on the push rod structure 4 is a rod-shaped structure, and the push rod body 401 is slidably connected in the push rod sliding hole 101; the push rod main part 401 is welded with a baffle ring 402, a spring 403 is sleeved on the outer wall of the push rod main part 401 and located above the baffle ring 402, the head end of the spring 403 is in contact with the adjusting nut pipe 202, the adjusting nut pipe 202 can be adjusted through rotation in the using process to adjust the tightness of the spring 403, and therefore the adjustment of the thrust size of the push rod main part 401 is achieved.

Referring to fig. 3 and 4, the adjusting nut tube 202 has a ring of teeth formed on the outer wall of the rotating handle in an annular array, and the teeth are engaged with the elastic clamp pin 3, so that the locking of the adjusting nut tube 202 can be realized by the cooperation of the elastic clamp pin 3 and the teeth on the adjusting nut tube 202, and the phenomenon that the adjusting nut tube 202 is loosened to cause the phenomenon of incapability of demoulding in the using process is prevented.

Referring to fig. 7 and 8, the push rod structure 4 includes a stud 404 and an adjusting nut 405, the top end surface of the push rod main body 401 is welded with the stud 404, the stud 404 passes through the circular hole of the support plate 203, and the stud 404 is screwed with the adjusting nut 405, when a part made of a softer material needs to be punched, the push rod main body 401 can be stretched upwards and retracted by turning and tightening the adjusting nut 405, so that the part can be prevented from being damaged under the thrust action of the push rod main body 401.

The specific use mode and function of the embodiment are as follows:

when the punch press is used, after punching, the punch 1 is driven to move upwards by the punch mounting frame 7, on one hand, the push rod main body 401 can be pushed to push a part on the punch 1 to complete demoulding under the action of the spring 403 on the push rod structure 4, on the other hand, firstly, the tightness of the spring 403 can be adjusted by rotating the adjusting nut tube 202 and the elastic bayonet lock 3 due to the arrangement of the adjusting nut tube 202 and the elastic bayonet lock 3, so that the thrust of the push rod main body 401 can be adjusted, secondly, the outer wall of the rotating handle of the adjusting nut tube 202 is provided with a ring of teeth in an annular array shape, the teeth are meshed with the elastic bayonet lock 3, the locking of the adjusting nut tube 202 can be realized through the matching of the elastic bayonet lock 3 and the teeth on the adjusting nut tube 202, and the phenomenon that the adjusting nut tube 202 is loosened and cannot be demoulded due to looseness in the; secondly, as the bottom of the push rod sliding hole 101 is of a conical structure, the smoothness of closing between the push rod structure 4 and the push rod sliding hole 101 can be improved in the using process, and the phenomenon that the push rod structure 4 is blocked when being closed with the push rod sliding hole 101 due to serious abrasion is prevented;

on the other hand, when needing to demold the time to softer part, through compressed gas cylinder 5 and briquetting 6's setting, compressed gas cylinder 5 touches with briquetting 6 when punching press head mounting bracket 7 upwards rises 10cm, the extrusion through briquetting 6 can be with the gaseous drawing of patterns of realizing of extruding of the gas in the compressed gas cylinder 5, at this moment, be linked together through the pipeline because of outlet channel 102 and compressed gas cylinder 5, and outlet channel 102 comprises an annular channel and six cylindricality passageways, six cylindricality passageways of accessible discharge simultaneously after gas enters into the annular channel, thereby make gaseous and part contact that can be even, prevent that part local atress from leading to the failure phenomenon of drawing of patterns.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides an ejecting demoulding mechanism for stamping die which characterized in that: comprises a punch (1) and a pressing block (6); the top end surface of the punch (1) is fixedly connected with a support frame (2) through a bolt, and the top end surface of the punch (1) is also fixedly connected with an elastic bayonet lock (3) through a bolt; the punching head (1) is connected with a push rod structure (4) in a sliding mode, a compressed gas cylinder (5) is installed at the top of the punching head (1), and a punching head installation frame (7) is welded on the top end face of the punching head (1); the pressing block (6) is fixed on the shell of the stamping structure through a bolt;

a push rod sliding hole (101) is formed in the center of the bottom of the punch (1), and the bottom of the push rod sliding hole (101) is of a conical structure;

the punch (1) further comprises an air outlet channel (102), the air outlet channel (102) is communicated with the compressed gas cylinder (5) through a pipeline, and the air outlet channel (102) consists of an annular channel and six cylindrical channels;

the supporting frame (2) comprises an adjusting seat (201), an adjusting nut pipe (202) and a supporting plate (203), the left end face of the supporting frame (2) is welded with the rectangular block-shaped adjusting seat (201), and the adjusting seat (201) is in threaded connection with the adjusting nut pipe (202); a supporting plate (203) is welded above the left end face of the supporting frame (2), and a circular hole is formed in the supporting plate (203);

the push rod structure (4) comprises a push rod main body (401), a baffle ring (402) and a spring (403), the push rod main body (401) on the push rod structure (4) is of a rod-shaped structure, and the push rod main body (401) is connected in the push rod sliding hole (101) in a sliding mode; a baffle ring (402) is welded on the push rod main body (401), a spring (403) is sleeved on the outer wall of the push rod main body (401) above the baffle ring (402), and the head end of the spring (403) is in contact with the adjusting nut pipe (202);

the outer wall of the rotating handle of the adjusting nut tube (202) is provided with a ring of teeth in an annular array shape, and the teeth are meshed with the elastic clamping pin (3);

the push rod structure (4) comprises a stud (404) and an adjusting nut (405), the top end face of the push rod main body (401) is welded with the stud (404), the stud (404) penetrates through a circular hole of the support plate (203), and the stud (404) is connected with the adjusting nut (405) in a threaded mode.

2. An ejection and demolding mechanism applied to a stamping die as claimed in claim 1, wherein: when the stamping head mounting rack (7) rises upwards by 10cm, the compressed gas cylinder (5) is contacted with the pressing block (6).