CN113751608A

CN113751608A - Positioning structure of punching die for inner container of refrigerator door

Info

Publication number: CN113751608A
Application number: CN202111033861.6A
Authority: CN
Inventors: 张继发; 刘立力
Original assignee: Chuzhou Better Sincere Mould Manufacturing Co ltd
Current assignee: Chuzhou Better Sincere Mould Manufacturing Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-12-07

Abstract

The invention relates to the technical field of refrigerator liner forming, and discloses a positioning structure of a refrigerator door liner punching die. This die-cut mould location structure of refrigerator door inner bag, it rotates to drive primary cam and secondary cam through the punching press band pulley, primary cam drives a slide and moves down, a slide drives a stamping frame and moves down, a stamping frame drives the design mould and moves down, the design mould carries out first stamping forming to panel, secondary cam drives the secondary slide and moves down, the secondary slide drives the secondary stamping frame and moves down, secondary stamping frame drives secondary mould and rotates the sleeve and move down, it contacts with the gag lever post to rotate the sleeve, thereby reach secondary stamping forming, reduce the stress of dragging that panel sent, avoid the fracture effect of panel, panel can carry out rapid stamping forming, the automatic effect that breaks away from the mould of shaping inner bag.

Description

Positioning structure of punching die for inner container of refrigerator door

Technical Field

The invention relates to the technical field of refrigerator inner container forming, in particular to a positioning structure of a refrigerator door inner container punching die.

Background

The refrigerator door inner bag mutually supports and can guarantee that the temperature of refrigerator can not run off, guarantees the refrigeration effect of refrigerator, and wherein the refrigerator door mostly adopts the disposable vacuum forming of environmental protection plastics, but to two refrigerators that open the door and need bear the refrigerator door that more article bore, the inner bag need use the steel preparation, and this also leads to the inner bag can not carry out the processing mode of common, and the punching press becomes its preferred processing mode. But in the stamping process, often can meet that the material loading is slow, artifical the participation is more, causes the punching press error easily, carries out one-time stamping forming in-process at panel, causes the panel fracture, and the product is difficult to break away from problems such as mould, causes great loss to the producer.

Therefore, in order to solve the problems, a positioning structure of a punching die for an inner container of a refrigerator door is needed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a positioning structure of a punching die for an inner container of a refrigerator door, which has the advantages of quickly positioning a plate, automatically reminding the plate in place, carrying out secondary punching forming, reducing the pulling stress generated by the plate, avoiding the fracture effect of the plate, carrying out quick punching forming on the plate and automatically enabling the formed inner container to be automatically separated from the die.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a die-cut mould location structure of refrigerator door inner bag, includes feeds positioning mechanism, it includes the base to feed positioning mechanism, the top of base is provided with the lift guide pillar, reset spring has been cup jointed in the outside of lift guide pillar, the inside of base is rotated and is connected with the feed wheel, it is connected with the hold-in range to rotate between the feed wheel, the inside of base is provided with the mould seat, the inside of base is provided with the reset guide pillar, the left side sliding connection of base has a frame to the position, pressure spring has been cup jointed to the inside of frame to the position, the left side of frame to the position is provided with anticollision piece, be provided with proximity switch between the anticollision piece, the top of mould seat is provided with panel.

Preferably, stamping forming mechanism includes the punching press band pulley, the back of punching press band pulley rotates and is connected with the secondary cam, the back of secondary cam is provided with a cam, the bottom of a cam is provided with a slide, the bottom of secondary cam is provided with the secondary slide, the front of a slide is provided with a punching press frame, the front of secondary slide is provided with the secondary punching press frame, the bottom of a punching press frame is provided with design mould, the bottom of secondary punching press frame is provided with the secondary mould, the top of a punching press frame is provided with the support guide pillar, the bottom of secondary punching press frame rotates and is connected with the rotation sleeve, the outside of a punching press frame is provided with the gag lever post.

Preferably, annular rectangular channel has been seted up to the inside of mould seat, and the outside of rectangular channel is vertical form, and the inboard ten degrees that incline inwards of rectangular channel, the long strip-shaped constant head tank of semicircle has been seted up at the top of mould seat, and the baffle groove lower than annular rectangular channel has been seted up to the inside of mould seat, according to the constant head tank effect at mould seat top, to panel gradual stretch forming, prevents that one shot forming from going on the situation appearance that breaks to panel.

Preferably, the top of the feeding wheel protrudes out of the base, the back of the feeding wheel is connected with a motor, the feeding wheel is connected through a synchronous belt in a transmission mode, the synchronous belt can drive the feeding wheel to rotate synchronously, the feeding wheel drives the plate to be fed and input, and the double conveying belts drive the plate to be fed stably and automatically.

Preferably, the punching press band pulley passes through the belt and is connected with motor drive, and the punching press band pulley is connected with primary cam and secondary cam through the pivot, and primary cam becomes one hundred twenty degrees with the secondary cam, and primary cam is shorter than the extension length of secondary cam, and primary cam can drive a slide and go up and down, and the secondary cam can drive the secondary slide and go up and down, and two sets of cams can once drive two sets of slides and descend in proper order to reach the secondary punching press, prevent the cracked effect of raw materials.

Preferably, the bottom of the rotating sleeve is cylindrical, the top of the rotating sleeve is inverted-triangular, a circular through hole is formed in the rotating sleeve, the inside of the rotating sleeve is connected with a guide pillar extending out of the secondary punching frame in a rotating mode through a clamp spring, a spiral sliding groove is formed in the cylindrical surface of the lower end of the rotating sleeve, the spiral sliding groove is matched with the reset guide pillar, an opening is formed in the position, corresponding to the spiral sliding groove, of the inverted-triangular end, and the opening is matched with the limiting rod in size.

Preferably, the extending end of the limiting rod is triangular, a spring and a pull rod are arranged inside the limiting rod, the pull rod drives the triangular clamping joint to stretch and retract through the spring, and the limiting rod can be matched with the rotating sleeve to enable the primary punching frame and the secondary punching frame to be kept in a synchronous state.

Has the advantages that:

1. the positioning structure of the refrigerator door liner punching die drives a primary cam and a secondary cam to rotate through a punching belt wheel, the primary cam drives a primary sliding plate to move downwards, the primary sliding plate drives a primary punching frame to move downwards, the primary punching frame drives a shaping die to move downwards, the shaping die performs primary punching forming on a plate, the secondary cam drives a secondary sliding plate to move downwards, the secondary sliding plate drives a secondary punching frame to move downwards, the secondary punching frame drives a secondary die and a rotating sleeve to move downwards, the rotating sleeve is in contact with a limiting rod, the secondary punching frame and the primary punching frame are ensured to be positioned at the same level, the secondary die performs edge punching on the plate, and the positioning structure is used by matching mechanisms such as a supporting guide pillar, thereby reach secondary stamping forming, reduce the stress of dragging that panel sent out, avoid the fracture effect of panel, panel can carry out rapid stamping forming, makes the automatic effect that breaks away from the mould of shaping inner bag automatically.

2. This die-cut mould location structure of refrigerator door inner bag drives the panel through feeding the wheel and feeds, and panel removes left and puts up the contact with arriving, drives the frame compression pressure spring that targets in place and contact with anticollision piece, and proximity switch detects panel and targets in place, sends the signal that targets in place, carries out the punching press operation to reach and carry out quick location to panel, the automatic effect of reminding that targets in place of panel.

Drawings

FIG. 1 is a schematic view of a punching structure of a positioning structure of a punching mold for an inner container of a refrigerator door according to an embodiment 1 of the present invention;

FIG. 2 is a schematic view of a power structure of a positioning structure of a punching mold for an inner container of a refrigerator door according to an embodiment 1 of the present invention;

FIG. 3 is a schematic view of a rotary sleeve structure of an embodiment 1 of a positioning structure of a punching mold for an inner container of a refrigerator door according to the present invention;

FIG. 4 is a schematic cross-sectional view of an overall structure of a positioning structure of a punching mold for an inner container of a refrigerator door according to an embodiment 2 of the present invention;

FIG. 5 is a top view of the overall structure of an embodiment 2 of a positioning structure of a punching mold for an inner container of a refrigerator door according to the present invention;

FIG. 6 is an enlarged view of the structure at A of FIG. 5 according to the present invention.

In the figure: 1. a feeding positioning mechanism; 2. a punch forming mechanism; 11. a base; 12. a lifting guide post; 13. a return spring; 14. a feed wheel; 15. a synchronous belt; 16. a mold base; 17. resetting the guide post; 18. arrival frame; 19. a pressure spring; 110. an anti-collision block; 111. a proximity switch; 112. a plate material; 21. punching a belt wheel; 22. a primary cam; 23. a secondary cam; 24. a primary slide plate; 25. a secondary sliding plate; 26. a primary stamping frame; 27. a secondary punching frame; 28. shaping the mold; 29. secondary die; 210. supporting the guide post; 211. rotating the sleeve; 212. a limiting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-3, a positioning structure for a refrigerator door liner punching mold further comprises a punching mechanism 2, the punching mechanism 2 comprises a punching belt wheel 21, the punching belt wheel 21 is in transmission connection with a motor through a belt, the punching belt wheel 21 is connected with a primary cam 22 and a secondary cam 23 through a rotating shaft, the primary cam 22 and the secondary cam 23 form one hundred twenty degrees, the primary cam 22 has a shorter extension length than the secondary cam 23, the primary cam 22 can drive a primary sliding plate 24 to lift, the secondary cam 23 can drive a secondary sliding plate 25 to lift, the two sets of cams can drive two sets of sliding plates to sequentially lift, so as to achieve secondary punching and prevent the raw material from breaking, the secondary cam 23 is rotatably connected to the back of the punching belt wheel 21, the primary cam 22 is arranged on the back of the secondary cam 23, and the primary sliding plate 24 is arranged at the bottom of the primary cam 22, the bottom of the secondary cam 23 is provided with a secondary sliding plate 25, the front of the primary sliding plate 24 is provided with a primary stamping frame 26, and the front of the secondary sliding plate 25 is provided with a secondary stamping frame 27.

The bottom of the primary punching frame 26 is provided with a shaping die 28, the bottom of the secondary punching frame 27 is provided with a secondary die 29, the top of the primary punching frame 26 is provided with a supporting guide post 210, the bottom of the secondary punching frame 27 is rotatably connected with a rotating sleeve 211, the bottom of the rotating sleeve 211 is cylindrical, the top of the rotating sleeve 211 is inverted triangular, a circular through hole is formed in the rotating sleeve 211, the inside of the rotating sleeve 211 is rotatably connected with the guide post extending out of the secondary punching frame 27 through a clamp spring, the cylindrical surface of the lower end of the rotating sleeve is provided with a spiral chute, the spiral chute is matched with the reset guide post 17, an opening is formed in the position of the inverted triangular end corresponding to the spiral chute, the opening is matched with the limiting rod 212 in size, the outer side of the primary punching frame 26 is provided with the limiting rod 212, the extending end of the limiting rod 212 is triangular, the inside of the limiting rod 212 is provided with a spring and a pull rod, the pull rod drives the triangular clamp joint to perform telescopic action through the spring, the limiting rod 212 can be matched with the rotating sleeve 211 to keep the primary stamping frame 26 and the secondary stamping frame 27 in a synchronous state.

The primary cam 22 and the secondary cam 23 are driven to rotate by the punching belt wheel 21, the primary cam 22 drives the primary sliding plate 24 to move downwards, the primary sliding plate 24 drives the primary punching frame 26 to move downwards, the primary punching frame 26 drives the shaping die 28 to move downwards, the shaping die 28 performs primary punching on the raw material, the secondary cam 23 drives the secondary sliding plate 25 to move downwards, the secondary sliding plate 25 drives the secondary punching frame 27 to move downwards, the secondary punching frame 27 drives the secondary die 29 and the rotary sleeve 211 to move downwards, the rotary sleeve 211 is in contact with the limiting rod 212, the secondary punching frame 27 and the primary punching frame 26 are ensured to be positioned at the same level, the secondary die 29 performs edge punching on the raw material, after punching is completed, the rotary sleeve 211 can rotate under the influence of other accessories, the spring sleeved outside the support guide pillar 210 drives the rotary sleeve 211 to be separated from the limiting rod 212, and the secondary punching frame 27 and the primary punching frame 26 are reset, secondary mold 29 shrink, refrigerator door inner bag and mould separation to reach secondary stamping forming, reduce the stress of dragging that panel sent, avoid the fracture effect of panel, panel can carry out rapid punch forming, makes the automatic effect that breaks away from the mould of shaping inner bag automatically.

Example two

Referring to fig. 4-6, a positioning structure of a refrigerator door liner punching mold comprises a feeding positioning mechanism 1, the feeding positioning mechanism 1 comprises a base 11, a lifting guide post 12 is disposed on the top of the base 11, a return spring 13 is sleeved on the outer side of the lifting guide post 12, a feeding wheel 14 is rotatably connected inside the base 11, a portion of the top of the feeding wheel 14 protrudes from the base 11, the back of the feeding wheel 14 is connected with a motor, the feeding wheel 14 is in transmission connection with a synchronous belt 15, the synchronous belt 15 can drive the feeding wheel 14 to rotate synchronously, the feeding wheel 14 drives a plate 112 to perform feeding input, the double conveying belts drive the plate 112 to perform stable automatic feeding, the synchronous belt 15 is rotatably connected between the feeding wheels 14, a mold base 16 is disposed inside the base 11, an annular rectangular groove is formed inside the mold base 16, the outer side of the rectangular groove is vertical, and the inner side of the rectangular groove is inclined inward by ten degrees, semicircle rectangular shape constant head tank has been seted up at the top of mould seat 16, the baffle groove lower than cyclic annular rectangular channel is seted up to the inside of mould seat 16, constant head tank effect according to mould seat 16 top, to panel 112 gradual stretch forming, the situation that one shot forming broke apart to panel 112 is prevented from appearing, the inside of base 11 is provided with the guide pillar 17 that resets, the left side sliding connection of base 11 has a frame 18 that arrives, pressure spring 19 has been cup jointed to the inside of frame 18 that arrives, the left side that puts in place frame 18 is provided with anticollision piece 110, be provided with proximity switch 111 between anticollision piece 110, the top of mould seat 16 is provided with panel 112.

Drive panel 112 through feed wheel 14 and feed, panel 112 moves left and puts in place the contact of frame 18, it compresses pressure spring 19 and contacts with anticollision piece 110 to drive to put in place frame 18, proximity switch 111 detects panel 112 and puts in place, send the signal that puts in place, carry out stamping operation, thereby reach and carry out quick location to panel 112, panel 112 is automatic to put in place to remind, the continuity of stamping operation has been guaranteed, make the punching press time of refrigerator inner bag can compress greatly, improve the production efficiency of product, panel 112 automatic feed has avoided reducing artifical participation process simultaneously, avoid considering the influence that the factor caused, greatly improve the degree of automation of equipment, the probability that panel 112 appears the slope and causes the product flaw has been reduced.

The working process and principle are as follows: when carrying out the die-cut location operation of refrigerator door inner bag, drive panel 112 through feed wheel 14 and feed, panel 112 moves left and puts in place the frame 18 contact, it puts in place 18 compression pressure spring 19 and contacts with anticollision piece 110 to drive, proximity switch 111 detects panel 112 and puts in place, send the signal that targets in place, carry out the punching press operation, thereby reach and carry out quick location to panel 112, panel 112 is automatic to target in place to remind, the continuity of punching press operation has been guaranteed, make the punching press time of refrigerator inner bag can compress greatly, the production efficiency of product is improved. Meanwhile, the automatic feeding of the plate 112 avoids reducing the manual participation process, avoids the influence caused by the considered factors, greatly improves the automation degree of the equipment, reduces the probability of product defects caused by the inclination of the plate 112, and ensures the adaptability of the shaping die 28 and the secondary die 29 to the die holder 16 and the accuracy of stamping by the lifting guide pillar 12. The return spring 13 can drive the primary stamping frame 26 to separate from the base 11, so that the inner container of the refrigerator door can be output.

After the proximity switch 111 sends a position-in signal, the punching belt wheel 21 drives the primary cam 22 and the secondary cam 23 to rotate, the primary cam 22 drives the primary sliding plate 24 to move downwards, the primary sliding plate 24 drives the primary punching frame 26 to move downwards, the primary punching frame 26 drives the shaping mold 28 to move downwards, the shaping mold 28 performs primary punch forming on the raw material, the secondary cam 23 drives the secondary sliding plate 25 to move downwards, the secondary sliding plate 25 drives the secondary punching frame 27 to move downwards, the secondary punching frame 27 drives the secondary mold 29 and the rotating sleeve 211 to move downwards, the rotating sleeve 211 is in contact with the limiting rod 212 to ensure that the secondary punching frame 27 and the primary punching frame 26 are positioned at the same level, the secondary mold 29 performs edge punching on the raw material, after punching is completed, the rotating sleeve 211 is in contact with the resetting guide post 17, the resetting guide post 17 drives the rotating sleeve 211 to rotate, a spring sleeved outside the supporting guide post 210 drives the rotating sleeve 211 to separate from the limiting rod 212, this makes secondary stamping frame 27 and a stamping frame 26 reset, and secondary mould 29 contracts, and refrigerator door inner bag and mould separation to reach secondary stamping forming, reduce the stress of dragging that panel sent out, avoid the fracture effect of panel, rapid prototyping can be carried out to panel, makes the automatic effect that breaks away from the mould of shaping inner bag automatically.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a die-cut mould location structure of refrigerator door inner bag, includes and feeds positioning mechanism (1), its characterized in that: the feeding positioning mechanism (1) comprises a base (11), the top of the base (11) is provided with a lifting guide post (12), a return spring (13) is sleeved on the outer side of the lifting guide post (12), two groups of feed wheels (14) are rotatably connected inside the base (11), a synchronous belt (15) is rotatably connected between the two groups of feed wheels (14), a mould seat (16) is arranged inside the base (11), a reset guide post (17) is arranged inside the base (11), the left side of the base (11) is connected with a position frame (18) in a sliding way, a pressure spring (19) is sleeved in the position frame (18), the left side of the arrival frame (18) is provided with anti-collision blocks (110), proximity switches (111) are arranged between the anti-collision blocks (110), and a plate (112) is arranged at the top of the die seat (16).

2. The refrigerator door liner punching die positioning structure according to claim 1, characterized in that: the stamping die is characterized by further comprising a stamping forming mechanism (2), wherein the stamping forming mechanism (2) comprises a stamping belt wheel (21), the back of the stamping belt wheel (21) is connected with a secondary cam (23) in a rotating mode, the back of the secondary cam (23) is provided with a primary cam (22), the bottom of the primary cam (22) is provided with a primary sliding plate (24), the bottom of the secondary cam (23) is provided with a secondary sliding plate (25), the front of the primary sliding plate (24) is provided with a primary stamping frame (26), the front of the secondary sliding plate (25) is provided with a secondary stamping frame (27), the bottom of the primary stamping frame (26) is provided with a shaping die (28), the bottom of the secondary stamping frame (27) is provided with a secondary die (29), the top of the primary stamping frame (26) is provided with a supporting guide pillar (210), and the bottom of the secondary stamping frame (27) is connected with a rotating sleeve (211) in a rotating mode, and a limiting rod (212) is arranged on the outer side of the primary stamping frame (26).

3. The refrigerator door liner punching die positioning structure according to claim 1, characterized in that: annular rectangular channel has been seted up to the inside of mould seat (16), and the outside of rectangular channel is vertical form, and the inboard ten degrees that incline inwards of rectangular channel, the long strip-shaped constant head tank of semicircle has been seted up at the top of mould seat (16), and the baffle groove lower than annular rectangular channel is seted up to the inside of mould seat (16), according to the constant head tank effect at mould seat (16) top, to panel (112) stretch forming step by step, prevents that the situation that one shot forming carries out the stretch-break to panel (112) from appearing.

4. The refrigerator door liner punching die positioning structure according to claim 1, characterized in that: the top of the feeding wheel (14) protrudes out of the base (11), the back of the feeding wheel (14) is connected with a motor, the feeding wheel (14) is in transmission connection through a synchronous belt (15), the synchronous belt (15) can drive the feeding wheel (14) to rotate synchronously, the feeding wheel (14) drives the plate (112) to perform feeding input, and the double conveying belts drive the plate (112) to perform stable automatic feeding.

5. The refrigerator door liner punching die positioning structure according to claim 1, characterized in that: punching press band pulley (21) are connected with motor drive through the belt, punching press band pulley (21) are connected through pivot and primary cam (22) and secondary cam (23), primary cam (22) become one hundred twenty degrees with secondary cam (23), primary cam (22) are shorter than the extension length of secondary cam (23), primary cam (22) can drive slide (24) and go up and down, secondary cam (23) can drive secondary slide (25) and go up and down, two sets of cams can once drive two sets of slides and descend in proper order, thereby reach the secondary punching press, prevent the cracked effect of raw materials.

6. The refrigerator door liner punching die positioning structure according to claim 1, characterized in that: the bottom of rotating sleeve (211) is cylindrical, and the top is inverted triangle-shaped, and circular through-hole has been seted up to the inside of rotating sleeve (211), and the guide pillar that extends out through jump ring and secondary stamping frame (27) rotates in the inside of rotating sleeve (211) and is connected, and the spiral spout has been seted up on the cylindrical surface of lower extreme, spiral spout and reset guide pillar (17) adaptation, and the opening has been seted up with the position that the spiral spout corresponds to the inverted triangle end, opening size and gag lever post (212) adaptation.

7. The refrigerator door liner punching die positioning structure according to claim 1, characterized in that: the extension end of the limiting rod (212) is triangular, a spring and a pull rod are arranged inside the limiting rod (212), the pull rod drives the triangular clamping joint to stretch and retract through the spring, and the limiting rod (212) can be matched with the rotating sleeve (211) to enable the primary punching frame (26) and the secondary punching frame (27) to be kept in a synchronous state.