CN220499858U - Die spotting machine capable of increasing die closing force - Google Patents
Die spotting machine capable of increasing die closing force Download PDFInfo
- Publication number
- CN220499858U CN220499858U CN202322204356.4U CN202322204356U CN220499858U CN 220499858 U CN220499858 U CN 220499858U CN 202322204356 U CN202322204356 U CN 202322204356U CN 220499858 U CN220499858 U CN 220499858U
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- die
- pressing plate
- base
- connecting rod
- hydraulic cylinder
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- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 9
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 239000011344 liquid material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The utility model discloses a die spotting machine for increasing die closing force, which comprises a base, a lower pressing plate and an upper pressing plate, wherein the upper pressing plate is in sliding fit with the base, and the upper pressing plate is connected with the base through a crank connecting rod upper die spotting driving assembly; the lower pressing plate is positioned below the upper pressing plate; a lower die assembly driving device is connected between the lower pressing plate and the base. The die spotting machine capable of increasing the die closing force can ensure that the pressure of the upper pressing plate on the upper die is uniform, improve the stability of die spotting, improve the die closing force and ensure the dimensional accuracy of products.
Description
Technical Field
The utility model relates to the field of rubber sole mold closing and injection molding, in particular to a mold closing machine capable of increasing mold closing force.
Background
The rubber or plastic sole is processed and molded, after the upper die and the lower die of the die are clamped, liquid materials are injected into the inner cavity of the die, and meanwhile, the clamping force of the die is kept, so that the upper die and the lower die are prevented from being stretched due to the lifting of the inner pressure of the die. After the materials are cooled and solidified, the upper die and the lower die are opened, and the injection molded sole can be obtained. The traditional die spotting machine is directly connected with a pressing plate through a hydraulic rod of a hydraulic cylinder, and the pressing plate is used for providing die spotting force for a die. However, when the hydraulic cylinder is pressurized, the hydraulic cylinder slightly contracts, and the precision is affected; the single hydraulic cylinder can bear smaller pressure, has short service life and high replacement cost, and has small application point range, so that the problem that the clamping force of the pressing plate acting on the die is easy to be uneven is solved, and the clamping stability is reduced.
In order to improve the stability of die assembly, the inventor designs a die assembly driving assembly on a crank connecting rod, and drives an upper pressing plate of a die assembly machine to drive an upper die to move downwards through the structure. Because the first hydraulic cylinder is pressurized during die assembly, the crank is in an unbending state, and all the connecting parts are in hard connection, the first hydraulic cylinder can be prevented from slightly shrinking, however, the first hydraulic cylinder can be prevented from shrinking when the upper pressing plate is at the lowest position, the die closing force between the upper die and the lower die is not necessarily enough, and the problems that materials in the die leak from the die cavity die joint during injection molding and the size precision of a final sole product is poor can exist.
Disclosure of Invention
The utility model aims to provide a die spotting machine capable of increasing the die closing force, which can ensure that the pressure of the upper pressing plate on the upper die is uniform, improve the stability of die spotting, improve the die closing force and ensure the dimensional accuracy of products.
In order to achieve the above purpose, the utility model provides a die spotting machine for increasing die closing force, which comprises a base, a lower pressing plate and an upper pressing plate, wherein the upper pressing plate is in sliding fit with the base, and the upper pressing plate is connected with the base through a crank connecting rod upper die spotting driving assembly; the lower pressing plate is positioned below the upper pressing plate; a lower die assembly driving device is connected between the lower pressing plate and the base.
As a further improvement of the utility model, the lower die assembly driving device comprises a lower hydraulic cylinder shell, a piston is arranged in the inner cavity of the lower hydraulic cylinder shell, and a liquid inlet and a liquid outlet communicated with the bottom of the inner cavity of the lower hydraulic cylinder shell are arranged on the outer wall of the lower hydraulic cylinder shell; the top of the piston is connected with the lower die through a lower pressing plate, and the lower hydraulic cylinder shell is connected with the base.
As a further improvement of the utility model, the length of the lower die is larger than the width, and the lower hydraulic cylinder shell and the piston are at least two groups and are arranged along the length direction of the lower die.
As a further improvement of the utility model, the lower pressing plate comprises a heating plate, a heat insulation plate and a bottom plate which are sequentially connected from top to bottom; the lower die is connected with the heating plate through a first screw; the heat insulation plate, the bottom plate and the top of the piston are connected through a second screw.
As a still further improvement of the present utility model, the base includes an upper base, a first rail, and a lower base connected in sequence; the upper pressing plate is in sliding connection with the first guide rail; the die assembly driving assembly on the crank connecting rod comprises a first hydraulic cylinder arranged on the upper base, and a hydraulic rod of the first hydraulic cylinder is connected with a lifting block; the die assembly driving assembly on the crank connecting rod further comprises a first connecting rod, a crank and a second connecting rod; the lower end of the first connecting rod is hinged with the upper pressing plate, the upper end of the first connecting rod is hinged with the crank, the crank is also respectively hinged with the upper base and one end of the second connecting rod, and the other end of the second connecting rod is hinged with the edge of the lifting block.
As a further improvement of the utility model, the upper die assembly driving assembly of the crank connecting rod further comprises a second guide rail, the second guide rail is respectively in sliding fit with the upper base and the lifting block, and the second guide rail is connected with the upper pressing plate.
Advantageous effects
Compared with the prior art, the die spotting machine for increasing the die closing force has the advantages that:
1. the upper pressing plate is driven to move by the die closing driving assembly on the crank connecting rod which is linked with the first hydraulic cylinder, the connecting rods, the crank and the lifting block, so that the traditional mode of directly driving the upper pressing plate through the hydraulic cylinder is replaced. When the die is closed, the first hydraulic cylinder is pressurized, the crank is in an unbending state, and all the connecting parts are in hard connection, so that the first hydraulic cylinder can be prevented from slightly contracting, the die closing precision is not influenced by other factors, and the structural precision is ensured during part processing. In addition, the first connecting rods can be arranged in a plurality of positions and act on the upper pressing plate, so that the pressure on the upper die at each position of the upper pressing plate is more uniform, and the die assembly stability is improved. The crank connecting rod is mainly stressed, even if damaged, the replacement cost is lower, and the first hydraulic cylinder has long service life and low maintenance cost. When the mold is closed, when the upper pressing plate and the upper mold connected with the upper pressing plate reach the lowest position, the lower pressing plate and the lower mold are driven to be lifted through the lower mold closing driving device, the mold closing force between the lower mold and the upper mold is increased, materials in the mold can not leak from the mold cavity mold closing seam during injection molding, and finally the dimension precision of the sole product is high.
2. Because the length of the sole is larger than the width, the length of the lower die of the die is larger than the width, and if only one group of lower hydraulic cylinder shells and pistons are adopted, the problems of uneven die closing force and insufficient die closing at the two ends of the die are easy to occur. Therefore, in the scheme, the lower hydraulic cylinder shell and the piston are at least two groups and are arranged along the length direction of the lower die, so that the die closing force at the front end and the rear end of the die is uniform, the die closing is tight, and the product precision is ensured. Compared with the method of simply increasing the diameter of a single hydraulic cylinder, the hydraulic cylinder has the advantages of smaller volume and lower cost due to the adoption of at least two hydraulic cylinders.
The utility model will become more apparent from the following description taken in conjunction with the accompanying drawings which illustrate embodiments of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a mold closing machine with increased mold closing force;
FIG. 2 is a front view of a mold closing machine with increased mold closing force;
FIG. 3 is a rear view of the mold clamping machine with increased mold closing force;
FIG. 4 is one of the state diagrams of the clamp drive assembly on the crank link;
FIG. 5 is a second state diagram of the clamp drive assembly on the crank link;
FIG. 6 is a perspective view of the lower platen and lower clamp actuation device;
fig. 7 is a cross-sectional view of the lower platen and the lower clamp driving device.
Detailed Description
Embodiments of the present utility model will now be described with reference to the accompanying drawings.
Examples
The embodiment of the utility model is as shown in fig. 1 to 7, and the mold clamping machine for increasing mold closing force comprises a base 1, a lower pressing plate 6 and an upper pressing plate 2, wherein the upper pressing plate 2 is in sliding fit with the base 1, and the upper pressing plate 2 is connected with the base 1 through a crank connecting rod upper mold clamping driving assembly 3. The lower platen 6 is located below the upper platen 2. A lower die assembly driving device 7 is connected between the lower pressing plate 6 and the base 1. Wherein, the lower extreme of top board 2 is connected with the last mould of mould, and the upper end of holding down plate 6 is connected with the lower mould 9 of mould.
The lower die assembly driving device 7 comprises a lower hydraulic cylinder shell 71, a piston 72 is arranged in the inner cavity of the lower hydraulic cylinder shell 71, and a liquid inlet and outlet port 73 communicated with the bottom of the inner cavity is arranged on the outer wall of the lower hydraulic cylinder shell 71. The top of the piston 72 is connected with the lower die 9 through the lower pressing plate 6, and the lower hydraulic cylinder housing 71 is connected with the lower base 11 of the base 1.
The lower die 9 has a length greater than a width, and the lower cylinder housing 71 and the piston 72 are arranged in at least two groups along the length direction of the lower die 9. In the present embodiment, the lower cylinder housing 71 and the piston 72 are two sets.
The lower pressure plate 6 includes a heating plate 61, a heat insulating plate 62 and a bottom plate 63 which are sequentially connected from top to bottom. The lower die 9 is connected to the heating plate 61 by a first screw 91. The heat shield 62, the bottom plate 63 and the top of the piston 72 are connected by the second screw 64. Wherein, heating plate 61 can adopt the electrothermal tube to heat, after liquid material gets into the mould, heats for the mould through top board 2 and holding down plate 6, avoids getting into the material in the mould and solidifies prematurely, ensures its mobility, lets it can fill each part of mould inner chamber, can also discharge the inside gas of material simultaneously, prevents that the product is inside to have the cavity. And the heat insulating plate 62 may insulate the heat conduction of the heating plate 61.
The base 1 includes an upper base 12, a first guide rail 13, and a lower base 11, which are sequentially connected. The upper platen 2 is slidably connected to the first rail 13. The crank-link upper mold clamping drive assembly 3 includes a first hydraulic cylinder 31 mounted on the upper base 12, and a lifting block 32 is connected to a hydraulic rod of the first hydraulic cylinder 31. The crank-link upper clamp drive assembly 3 further includes a first link 34, a crank 33, and a second link 35. The lower end of the first connecting rod 34 is hinged with the upper pressing plate 2, the upper end of the first connecting rod 34 is hinged with the crank 33, the crank 33 is also respectively hinged with the upper base 12 and one end of the second connecting rod 35, and the other end of the second connecting rod 35 is hinged with the edge of the lifting block 32.
The crank connecting rod upper die assembly driving assembly 3 further comprises a second guide rail 36, the second guide rail 36 is respectively in sliding fit with the upper base 12 and the lifting block 32, and the second guide rail 36 is connected with the upper pressing plate 2.
When the upper and lower molds 9 of the mold are located between the upper platen 2 and the lower platen 6, the upper platen 2 is pressed above the upper mold, and the lower platen 6 is supported on the bottom surface of the lower mold 9. The liquid material is injected into the cavity of the mold by a material injection gun (not shown) through a material injection channel arranged on one side wall of the mold. In the process of injecting liquid materials into the inner cavity of the die by the injection gun, the first hydraulic cylinder 31 of the die assembly driving assembly 3 on the crank connecting rod drives the lifting block 32 to move downwards, and the lifting block 32 drives the upper pressing plate 2 to move downwards relative to the upper base 12 through the second connecting rod 35, the crank 33 and the first connecting rod 34, so that the upper die is pressed downwards. In order to increase the mold clamping force, the upper and lower molds are prevented from being propped by internal materials, the third hydraulic cylinder of the lower mold clamping driving device 7 drives the lower pressing plate 6 to jack up the lower mold 9 upwards, the mold closing force between the lower mold 9 and the upper mold is increased, the materials in the mold can not leak from the mold cavity mold-closing seam during injection molding, and the final sole product has high dimensional accuracy.
The utility model has been described in connection with the preferred embodiments, but the utility model is not limited to the embodiments disclosed above, but it is intended to cover various modifications, equivalent combinations according to the essence of the utility model.
Claims (5)
1. The die spotting machine capable of increasing the die closing force comprises a base (1), a lower pressing plate (6) and an upper pressing plate (2), and is characterized in that the upper pressing plate (2) is in sliding fit with the base (1), and the upper pressing plate (2) is connected with the base (1) through a crank connecting rod upper die spotting driving assembly (3); the lower pressing plate (6) is positioned below the upper pressing plate (2); a lower die assembly driving device (7) is connected between the lower pressing plate (6) and the base (1); the base (1) comprises an upper base (12), a first guide rail (13) and a lower base (11) which are sequentially connected; the upper pressing plate (2) is in sliding connection with the first guide rail (13); the upper die assembly driving assembly (3) of the crank connecting rod comprises a first hydraulic cylinder (31) arranged on the upper base (12), and a hydraulic rod of the first hydraulic cylinder (31) is connected with a lifting block (32); the upper die assembly driving assembly (3) of the crank connecting rod also comprises a first connecting rod (34), a crank (33) and a second connecting rod (35); the lower end of the first connecting rod (34) is hinged with the upper pressing plate (2), the upper end of the first connecting rod (34) is hinged with the crank (33), the crank (33) is also respectively hinged with the upper base (12) and one end of the second connecting rod (35), and the other end of the second connecting rod (35) is hinged with the edge of the lifting block (32).
2. The die spotting machine for increasing the die closing force according to claim 1, characterized in that the lower die closing driving device (7) comprises a lower hydraulic cylinder shell (71), a piston (72) is arranged in the inner cavity of the lower hydraulic cylinder shell (71), and a liquid inlet and outlet port (73) communicated with the bottom of the inner cavity is arranged on the outer wall of the lower hydraulic cylinder shell (71); the top of the piston (72) is connected with the lower die (9) through the lower pressing plate (6), and the lower hydraulic cylinder shell (71) is connected with the base (1).
3. The mold clamping machine for increasing mold closing force according to claim 2, wherein the length of the lower mold (9) is larger than the width, and the lower cylinder housing (71) and the piston (72) are arranged in at least two groups along the length direction of the lower mold (9).
4. A closing machine for increasing a closing force according to claim 2 or 3, wherein the lower platen (6) comprises a heating plate (61), a heat insulating plate (62) and a bottom plate (63) which are connected in this order from top to bottom; the lower die (9) is connected with the heating plate (61) through a first screw (91); the heat insulation plate (62), the bottom plate (63) and the top of the piston (72) are connected through a second screw (64).
5. The die spotting machine for increasing the die closing force according to claim 1, wherein the crank link upper die closing driving assembly (3) further comprises a second guide rail (36), the second guide rail (36) is respectively in sliding fit with the upper base (12) and the lifting block (32), and the second guide rail (36) is connected with the upper pressing plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322204356.4U CN220499858U (en) | 2023-08-15 | 2023-08-15 | Die spotting machine capable of increasing die closing force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322204356.4U CN220499858U (en) | 2023-08-15 | 2023-08-15 | Die spotting machine capable of increasing die closing force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220499858U true CN220499858U (en) | 2024-02-20 |
Family
ID=89883061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322204356.4U Active CN220499858U (en) | 2023-08-15 | 2023-08-15 | Die spotting machine capable of increasing die closing force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220499858U (en) |
-
2023
- 2023-08-15 CN CN202322204356.4U patent/CN220499858U/en active Active
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