Expansion and contraction box foam mold demolding structure

Abstract

The present invention relates to the technical field of box foaming molds, and in particular to a demoulding structure of an expansion and contraction box foaming mold, comprising a mold core, a side plate 1 is fixedly arranged at one end of the top of the mold core, a limiting top plate is fixedly arranged on the top of the side plate 1, a side plate 2 fixed to the mold core is fixedly arranged at the bottom of the other end of the limiting top plate, and a contraction mechanism for box mold foaming is arranged on the mold core, the contraction mechanism comprises movable side plates arranged on both sides of the bottom of the limiting top plate, and the movable side plates are slidably connected on the mold core, and an movable flap is arranged at one end of the movable side plate close to the side plate 1, and a flip assembly for ejection is arranged on one side of the movable flap. The present invention is conducive to reducing the gap at the corner of the mold core, solving the problem that the expansion and contraction box foaming mold has too large a gap, which causes the box to swell after foaming, improving the quality of refrigerator products, reducing cost losses, and at the same time improving production efficiency, which is convenient for box foaming demoulding.

Description

Technical Field

[0001] The invention relates to the technical field of box foaming moulds, and in particular to an expansion and contraction box foaming mould demoulding structure. Background Art

[0002] The shape of current refrigerator cabinets is becoming more and more complicated. The refrigerator cabinet is formed by foaming a mold. Most of the existing cabinet foaming molds adopt an expansion and contraction structure design. However, the greater the expansion and contraction distance, the larger the gap on the template. In particular, a larger gap is required at the corners of the mold, resulting in bulging defects after the cabinet is foamed, affecting the quality of the refrigerator cabinet after forming. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides an expansion and contraction box foaming mold demolding structure, which solves the problem that a larger gap is required for expansion and contraction at the corners of the box foaming mold, resulting in bulging of the box after foaming, thereby achieving the purpose of reducing the expansion and contraction gap at the corners of the mold and improving the quality of the box after forming.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: an expansion and contraction box foaming mold demoulding structure, comprising a mold core, a side plate 1 is fixedly arranged at one end of the top of the mold core, a limit top plate is fixedly arranged on the top of the side plate 1, and a side plate 2 fixed to the mold core is fixedly arranged at the bottom of the other end of the limit top plate, and a contraction mechanism for box mold foaming is arranged on the mold core;

[0005] The retracting mechanism includes movable side plates arranged on both sides of the bottom of the limiting top plate, and the movable side plates are slidably connected to the mold core. A movable flap is provided at one end of the movable side plate close to side plate one, and a flip assembly for ejection is provided on one side of the movable flap. The retracting mechanism also includes a driving limiting assembly arranged on one side of the movable side plate.

[0006] Furthermore, the flip assembly includes a movable connecting rod fixedly arranged at both ends of one side of the movable flap, and the cross-section of the movable connecting rod is L-shaped, and a limiting square groove is opened at both ends of one side of the movable side plate, and a limiting block fixed to the movable side plate is arranged on the inner side of the limiting square groove, and a movable groove movably connected to one end of the movable connecting rod is provided on the limiting block.

[0007] Furthermore, a circular hole is opened at one end of the movable connecting rod, a limiting column rotatably connected to the circular hole is fixed on the limiting block, a return spring fixed to the movable side plate is fixed in the middle of one side of the movable connecting rod, and a limiting top block fixed to the mold core is provided on the other side of the movable connecting rod, the cross-section of the limiting top block is set to be trapezoidal, and the inclined surface on one side of the limiting top block matches the inclined surface on one side of the movable connecting rod.

[0008] Furthermore, the drive limit assembly includes a support frame arranged on one side of the movable side plate and fixed to the mold core, and a drive cylinder arranged at the four corners of the support frame and fixed to the mold core, and a connecting plate fixed to the movable side plate is fixed at the output end of the drive cylinder.

[0009] Furthermore, a plurality of limit seats distributed along a transverse array are fixedly arranged on the support frame, a sliding vertical groove is opened on the limit seat, and a movable vertical plate fixed to the movable side plate is slidably connected inside the sliding vertical groove.

[0010] Furthermore, an outer end of the movable flap is provided with a curved surface for providing protection for the mold.

[0011] Furthermore, a positioning square groove is provided at the bottom of the movable flap, and a positioning square plate fixed to the mold core is provided inside the positioning square groove.

[0012] By means of the above technical solution, the present invention provides an expansion and contraction box foaming mold demoulding structure, which has at least the following beneficial effects:

[0013] 1. The present invention turns over the corners of the box mold by setting a contraction mechanism. The movable flap is located at the corner of the mold core. The position of the movable flap can be adjusted by a turning assembly. When the movable side panel contracts inward, the movable flap turns outward, which is beneficial to reducing the gap at the corner of the mold core, solving the problem of bulging of the box after foaming due to excessive gap in the expansion and contraction box foaming mold, improving the quality of refrigerator products, reducing cost losses, and improving production efficiency.

[0014] 2. The present invention turns the movable flap to a certain angle by setting a flip assembly, and the movable side plate drives the movable flap to move. The movable connecting rod on one side of the movable flap contacts one side of the limiting top block, and the limiting top block pushes the movable connecting rod out. The movable connecting rod rotates in the movable groove on the limiting block, and one end of the movable connecting rod rotates around the limiting column at a certain angle. The movable connecting rod drives the movable flap to turn to a certain angle. The structure is reasonable and the operation is convenient, thereby reducing the gap at the corner of the mold core to facilitate the molding of the mold.

[0015] 3. The present invention provides a limiting effect on the movable side panel while driving the movement of the movable side panel by setting a driving limiting component. By starting the driving cylinder, the driving cylinder drives the movable side panel to shrink inward on the mold core through the connecting plate, and the movable side panel drives the movable flap to move. At the same time, the movable side panel drives the movable vertical panel to slide inside the limiting vertical groove, so that the movable side panel is more stable when shrinking, and the stability of the movable side panel shrinking on the mold core is improved. The shrinking process is rapid, which is convenient for foaming and demoulding of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0019] Figure 3 is a top cross-sectional view of the present invention;

[0020] Figure 4 It is a cross-sectional view schematically showing the working of the present invention;

[0021] Figure 5 It is a partial explosion schematic diagram of the present invention;

[0022] Figure 6 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0023] Figure 7 for Figure 5 Schematic diagram of the enlarged structure of part B.

[0024] In the figure: 1. mold core; 2. side panel 1; 3. limiting top plate; 4. side panel 2; 5. contraction mechanism; 51. movable side panel; 52. movable flap; 53. flip assembly; 531. movable connecting rod; 532. limiting square groove; 533. limiting square block; 534. movable groove; 535. circular hole; 536. limiting column; 537. reset spring; 538. limiting top block; 54. driving limiting assembly; 541. support frame; 542. driving cylinder; 543. connecting plate; 544. limiting seat; 545. sliding vertical groove; 546. movable vertical plate; 55. arc surface; 56. positioning square groove; 57. positioning square plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1

[0027] Figure 1-Figure 7This is an embodiment of the present invention: an expansion and contraction box foaming mold demolding structure, including a mold core 1, the mold core 1 belongs to the prior art, and is common knowledge to technicians in this field. Its internal structure is not described in detail in this scheme. A side panel 2 is fixedly arranged at one end of the top of the mold core 1, and a limiting top plate 3 is fixedly arranged on the top of the side panel 2, and a side panel 2 4 fixed to the mold core 1 is fixedly arranged at the bottom of the other end of the limiting top plate 3. The side panels 1 2 and side panels 2 4 at both ends of the mold core 1 and the limiting top plate 3 at the top of the mold core 1 provide protection for the internal structure of the mold core 1. At the same time, the side panels 1 2, side panels 2 4 and the limiting top plate 3 are all fixed to the mold core 1 by bolts. When the side panels 1 2, side panels 2 4 and the limiting top plate 3 are worn out after long-term use, they are easy to replace. A shrinking mechanism 5 for box mold foaming is provided on the mold core 1.

[0028] The contraction mechanism 5 is used to flip the corners of the box mold. The movable flap 52 is located at the corners of the mold core 1. The position of the movable flap 52 can be adjusted by the flipping assembly 53. When the movable side panel 51 contracts inward, the movable flap 52 flips outward, which is beneficial to reduce the gap at the corner of the mold core 1, solving the problem of bulging of the box after foaming due to excessive gap in the expansion and contraction box foaming mold.

[0029] The shrinking mechanism 5 includes movable side plates 51 arranged on both sides of the bottom of the limiting top plate 3, and the movable side plates 51 are slidably connected on the mold core 1, and the top of the movable side plates 51 is in contact with the limiting top plate 3. The movable side plates 51 can stably move on the mold core 1. The movable side plates 51 are provided with a movable flap 52 at one end close to the side plate 2. A positioning square groove 56 is provided at the bottom of the movable flap 52. A positioning square plate 57 fixed to the mold core 1 is provided inside the positioning square groove 56. The movable flap 52 is stably turned over on the positioning square plate 57 to provide a movable The movable flap 52 provides a limiting function, which is beneficial to improving the stability of the movable flap 52 when flipping. An arc surface 55 is provided at one end of the outer side of the movable flap 52. The arc surface 55 at one end of the outer side of the movable flap 52 helps the movable flap 52 to provide protection when it ejects the foaming box. A flip assembly 53 for ejection is provided on one side of the movable flap 52. The shrinkage mechanism 5 also includes a driving limiting assembly 54 arranged on one side of the movable side plate 51. The driving limiting assembly 54 is used to drive the movable side plate 51 to shrink inward on the mold core 1.

[0030] Specifically, the flip assembly 53 includes a movable connecting rod 531 fixedly arranged at both ends of one side of the movable flip plate 52, and the cross section of the movable connecting rod 531 is L-shaped, and a limiting square groove 532 is opened at both ends of one side of the movable side plate 51, a limiting square block 533 fixed to the movable side plate 51 is arranged inside the limiting square groove 532, a movable groove 534 movably connected to one end of the movable connecting rod 531 is arranged on the limiting square block 533, a circular hole 535 is opened at one end of the movable connecting rod 531, a limiting column 536 rotatably connected to the circular hole 535 is fixed on the limiting square block 533, and the movable connecting rod 531 is movable around the limiting column 536. The groove 534 rotates inside, and a return spring 537 fixed to the movable side plate 51 is fixed in the middle of one side of the movable connecting rod 531. The return spring 537 can drive the movable flap 52 to reset when the movable side plate 51 expands. A limiting top block 538 fixed to the mold core 1 is provided on the other side of the movable connecting rod 531. The cross-section of the limiting top block 538 is set to be trapezoidal, and the inclined surface on one side of the limiting top block 538 matches the inclined surface on one side of the movable connecting rod 531. When the movable side plate 51 drives the movable flap 52 to contract, the limiting top block 538 is used to push the movable connecting rod 531 out, so that the movable connecting rod 531 drives the movable flap 52 to flip.

[0031] The specific implementation process of this embodiment is as follows: when the box mold is foaming, the movable side plate 51 is driven to move by driving the limit assembly 54, and the movable side plate 51 shrinks inwardly on the mold core 1, and the movable side plate 51 drives the movable flap 52 at one end thereof to move inwardly, and the movable flap 52 drives the movable connecting rod 531 on one side thereof to start moving, and the inclined surface on one side of the movable connecting rod 531 contacts the inclined surface on one side of the limit top block 538, and the limit top block 538 pushes the movable connecting rod 531 to move in the limiting square groove 532 at both ends of one side of the movable side plate 51. At the same time, the movable connecting rod 531 rotates in the movable groove 534 on the limiting square block 533, and the limiting column 536 is connected with the circular hole 535 on the limiting square block 533 by rotation. One end of the movable connecting rod 531 rotates around the limiting column 536 by a certain angle, and the movable connecting rod 531 drives the movable flap 52 to flip outward by a certain angle, so that the gap at the corner of the box mold is reduced to meet the normal production of the box foaming mold.

[0032] Embodiment 2

[0033] refer to Figure 2, which is basically the same as the first embodiment, and is more optimized in that: the driving limit assembly 54 includes a support frame 541 arranged on one side of the movable side plate 51 and fixed to the mold core 1, and a driving cylinder 542 arranged at the four corners of the support frame 541 and fixed to the mold core 1, a connecting plate 543 fixed to the movable side plate 51 is fixed at the output end of the driving cylinder 542, a plurality of limit seats 544 distributed along the horizontal array are fixedly arranged on the support frame 541, a sliding vertical groove 545 is opened on the limit seat 544, and a movable vertical plate 546 fixed to the movable side plate 51 is slidably connected to the inner side of the sliding vertical groove 545.

[0034] The specific implementation process of this embodiment is as follows: by starting the driving cylinder 542, the driving cylinder 542 is running, and the output end of the driving cylinder 542 drives the connecting plate 543 to move, and the connecting plate 543 drives the movable side plate 51 on one side thereof to shrink inward on the mold core 1, and at the same time, the movable side plate 51 drives the movable vertical plate 546 on one side thereof to move, and the movable vertical plate 546 slides on the inner side of the limiting vertical groove on the limiting seat 544, so that the movable side plate 51 is more stable when shrinking.

[0035] During actual use of the demoulding structure, the driving cylinder 542 is started and the driving cylinder 542 is in operation. The output end of the driving cylinder 542 drives the connecting plate 543 to move. The connecting plate 543 drives the movable side plate 51 on one side thereof to shrink inward on the mold core 1. The movable side plate 51 drives the movable vertical plate 546 on one side thereof to move. The movable vertical plate 546 slides inside the limiting vertical groove on the limiting seat 544. At the same time, the movable side plate 51 drives the movable flap 52 at one end thereof to move inward. The movable flap 52 drives the movable connecting rod 531 on one side thereof to start moving. The inclined surface on one side of the movable connecting rod 531 contacts the limiting top block 53. On the inclined surface on one side of 8, the limiting top block 538 pushes the movable link 531 to move in the limiting square grooves 532 at both ends of one side of the movable side plate 51, and at the same time, the movable link 531 rotates in the movable groove 534 on the limiting square block 533, and the limiting column 536 is connected with the circular hole 535 on the limiting square block 533 by rotation. One end of the movable link 531 rotates around the limiting column 536 at a certain angle, and the movable link 531 squeezes the reset spring 537, and the reset spring 537 is elastically deformed and compressed, and the movable link 531 drives the movable flap 52 to flip outward at a certain angle, so that the gap at the corner of the box mold is reduced;

[0036] When the movable side plate 51 expands, the movable side plate 51 on one side is driven to expand outward on the mold core 1 by driving the cylinder 542 and the connecting plate 543, and the movable side plate 51 drives the movable flap 52 at one end thereof to move outward, and the movable flap 52 drives the movable connecting rod 531 on one side to start moving outward, and the movable connecting rod 531 is separated from the limiting top block 538, and the return spring 537 restores the elastic deformation to push the movable connecting rod 531 to move, and one end of the movable connecting rod 531 rotates a certain angle around the limiting column 536, and the movable connecting rod 531 drives the movable flap 52 back to its original position.

[0037] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An expansion and contraction box foaming mold demoulding structure, comprising a mold core (1), characterized in that: A side plate 1 (2) is fixedly arranged at one end of the top of the mold core (1), a limit top plate (3) is fixedly arranged on the top of the side plate 1 (2), and a side plate 2 (4) fixed to the mold core (1) is fixedly arranged at the bottom of the other end of the limit top plate (3), and a shrinking mechanism (5) for foaming the box mold is arranged on the mold core (1); The retracting mechanism (5) comprises movable side plates (51) arranged on both sides of the bottom of the limiting top plate (3), and the movable side plates (51) are slidably connected to the mold core (1), and a movable flap (52) is provided at one end of the movable side plate (51) close to the side plate one (2), and a flip assembly (53) for ejection is provided on one side of the movable flap (52), and the retracting mechanism (5) also comprises a driving limiting assembly (54) arranged on one side of the movable side plate (51); The driving limit assembly (54) comprises a support frame (541) arranged on one side of the movable side plate (51) and fixed to the mold core (1), and a driving cylinder (542) arranged at four corners of the support frame (541) and fixed to the mold core (1), a connecting plate (543) fixed to the movable side plate (51) is fixed at the output end of the driving cylinder (542), a plurality of limit seats (544) distributed along a transverse array are fixedly arranged on the support frame (541), a sliding vertical groove (545) is provided on the limit seat (544), and a movable vertical plate (546) fixed to the movable side plate (51) is slidably connected to the inner side of the sliding vertical groove (545).

2. The expansion and contraction box foaming mold demoulding structure according to claim 1, characterized in that: The flip assembly (53) comprises a movable connecting rod (531) fixedly arranged at two ends of one side of the movable flip plate (52), wherein the cross section of the movable connecting rod (531) is L-shaped, and a limiting square groove (532) is provided at two ends of one side of the movable side plate (51), a limiting square block (533) fixed to the movable side plate (51) is provided inside the limiting square groove (532), and a movable groove (534) movably connected to one end of the movable connecting rod (531) is provided on the limiting square block (533).

3. The demoulding structure of the expansion and contraction box foaming mold according to claim 2 is characterized in that: A circular hole (535) is formed at one end of the movable connecting rod (531); a limiting column (536) rotatably connected to the circular hole (535) is fixed on the limiting block (533); a return spring (537) fixed to the movable side plate (51) is fixed in the middle of one side of the movable connecting rod (531); a limiting top block (538) fixed to the mold core (1) is provided on the other side of the movable connecting rod (531); the cross section of the limiting top block (538) is set to be trapezoidal, and the inclined surface on one side of the limiting top block (538) matches the inclined surface on one side of the movable connecting rod (531).

4. The demoulding structure of the expansion and contraction box foaming mold according to claim 1, characterized in that: An outer end of the movable flap (52) is provided with an arc surface (55) for protecting the mold.

5. The demoulding structure of the expansion and contraction box foaming mold according to claim 1, characterized in that: A positioning square groove (56) is provided at the bottom of the movable flap (52), and a positioning square plate (57) fixed to the mold core (1) is provided inside the positioning square groove (56).

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