Continuous static pressure hot press

Abstract

The utility model discloses a continuous static pressure hot press which comprises an upper static pressure die and a lower static pressure die which are mutually attached and matched, and a pressing space for containing a steel belt is formed between the upper static pressure die and the lower static pressure die. Limiting grooves are formed in the pressure applying surfaces of the upper static pressure mold and the lower static pressure mold, and dynamic sealing rings are arranged in the limiting grooves; a containing cavity is formed in the dynamic sealing ring, medium injection hole channels are formed in the upper static pressure mold and the lower static pressure mold and communicate with the containing cavity, pressure applying faces of the upper static pressure mold and the lower static pressure mold are sunken inwards to form pressure applying grooves, and the pressure applying grooves are filled with pressing strips. One end of the pressing strip is flush with the pressing face, and the other end of the pressing strip is connected with the dynamic sealing ring. According to the continuous static pressure hot press provided by the utility model, the dynamic sealing ring is arranged in the static pressure die, and the pressure of a medium injected into the accommodating cavity of the sealing ring is adjusted, so that the dynamic tight fitting of a steel belt is realized, and the sealing reliability of the static pressure hot press is improved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of static pressing machines, in particular to a continuous static hot pressing machine. Background Art

[0002] At present, static presses generally use O-rings and outer ring sealing materials for sealing operations. The sealing effect is achieved by the sealing material resisting against the static press steel belt. Based on the elastic material characteristics of the O-ring, the loss of the sealing material is compensated during the operation of the static press. Since the elastic compensation range of the O-ring material is relatively small, the current static presses are prone to excessive sealing material loss and exceeding the elastic compensation range of the O-ring material after long-term use, resulting in a decrease in the sealing performance of the static press, oil leakage due to internal pressure, etc., affecting the sealing reliability of the static press. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art. The utility model provides a continuous static pressure hot press. A dynamic sealing ring is arranged in the static pressure mold to provide a driving force for the pressure strip. By adjusting the pressure of the medium injected into the sealing ring accommodating cavity, dynamic adjustment of the driving force of the pressure strip is achieved, so that the pressure strip can fit tightly to the steel belt, thereby improving the sealing reliability of the static press.

[0004] The utility model provides a continuous static pressure hot press machine, which comprises: an upper static pressure mold and a lower static pressure mold which are matched with each other, and a pressing space for accommodating a steel strip is formed between the upper static pressure mold and the lower static pressure mold;

[0005] The pressure surfaces of the upper static pressure mold and the lower static pressure mold are both provided with limiting grooves, and dynamic sealing rings are provided in the limiting grooves;

[0006] The dynamic sealing ring is provided with a receiving cavity, and the upper static pressure mold and the lower static pressure mold are provided with medium injection channels, and the medium injection channels are connected with the receiving cavity;

[0007] The pressure surfaces of the upper static pressure mold and the lower static pressure mold are inwardly recessed to form pressure grooves, and the pressure grooves are filled with pressure strips;

[0008] One end of the pressure strip is flush with the pressure surface, and the other end of the pressure strip is connected to the dynamic sealing ring.

[0009] Furthermore, the dynamic sealing ring comprises: a steel frame and a sealing ring body arranged on the steel frame;

[0010] The sealing ring body comprises: a steel wire layer, a cord layer and a rubber layer which are arranged in sequence from the inside to the outside, and the steel wire layer, the cord layer and the rubber layer are bent to form an accommodating cavity.

[0011] Furthermore, the steel skeleton is arranged in the rubber layer.

[0012] Furthermore, the dynamic sealing ring is a semi-open structure, or the dynamic sealing ring is a fully sealed structure.

[0013] Furthermore, when the dynamic sealing ring is a semi-open structure, lips are provided on both side edges of the sealing ring body.

[0014] Furthermore, the angle formed between the lips on both sides of the dynamic sealing ring is θ;

[0015] The value range of θ is: 160°≤θ<180°.

[0016] Furthermore, when the dynamic sealing ring is in a fully sealed state, the dynamic sealing ring is provided with an input pipe, and the input pipe is communicated with the accommodating cavity.

[0017] Furthermore, the input pipe is plugged into and fitted in the medium injection channel.

[0018] Furthermore, the continuous static pressure hot press machine also includes a first pair of rollers and a second pair of rollers, and the first pair of rollers and the second pair of rollers are symmetrically distributed on both sides of the upper static pressure mold and the lower static pressure mold.

[0019] The utility model provides a continuous static pressure hot press machine, which provides driving force for the pressure strip by arranging a dynamic sealing ring in the static pressure mold, and realizes dynamic adjustment of the driving force of the pressure strip by adjusting the pressure of the medium injected into the sealing ring accommodating cavity, so that the pressure strip can fit tightly to the steel belt, thereby improving the sealing reliability of the static press machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a continuous static pressure hot press in an embodiment of the utility model;

[0022] Figure 2 It is a structural cross-sectional view of a continuous static hot press in an embodiment of the utility model;

[0023] Figure 3 It is attached in the embodiment of the utility model Figure 2 An enlarged schematic diagram of the structure at A;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the dynamic sealing ring of the first embodiment of the utility model;

[0025] Figure 5 It is a schematic diagram of the dynamic sealing ring structure in the second embodiment of the present utility model;

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the dynamic sealing ring in the second embodiment of the present utility model. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1:

[0029] Please refer to Figures 1 to 4 The embodiment of the utility model discloses a continuous static pressing and hot pressing machine, which comprises: an upper static pressing mold 1 and a lower static pressing mold 2 which are fitted against each other, a pressing space for accommodating a steel strip is formed between the upper static pressing mold 1 and the lower static pressing mold 2, an upper steel strip and a lower steel strip are arranged between the upper static pressing mold 1 and the lower static pressing mold 2, and the upper steel strip and the lower steel strip are used to press sheet-type workpieces.

[0030] Specifically, the continuous static hot press is provided with a first pair of rollers 3 and a second pair of rollers 4, which are symmetrically distributed on both sides of the upper static press mold 1 and the lower static press mold 2. The first pair of rollers 3 includes a first upper press roller 32 and a first lower press roller 31, and the second pair of rollers 4 includes a second upper press roller 41 and a second lower press roller 42. The first pair of rollers 3 is arranged at the input end of the upper static press mold 1 and the lower static press mold 2, and the second pair of rollers 4 is arranged at the output end of the upper static press mold 1 and the lower static press mold 2. The first pair of rollers 3 and the second pair of rollers 4 are used to drive the upper steel belt and the lower steel belt to move in the pressing space, thereby driving the sheet-type workpiece to move in the continuous static hot press.

[0031] One end of the upper steel belt is in contact with the circumferential surface of the first upper pressure roller 32, and the other end of the upper steel belt is in contact with the circumferential surface of the second upper pressure roller 41. One end of the lower steel belt is in contact with the circumferential surface of the first lower pressure roller 31, and the other end of the lower steel belt is in contact with the circumferential surface of the second lower pressure roller 42. The first pair of rollers 3 and the second pair of rollers 4 can press the upper steel belt and the lower steel belt together, so that the upper steel belt and the lower steel belt can press the sheet-type workpiece, and drive the upper steel belt and the lower steel belt to move, so as to realize the conveyance of the sheet-type workpiece.

[0032] Specifically, the opposite sides of the upper static pressure mold 1 and the lower static pressure mold 2 are the pressure surfaces, and the pressure surfaces of the upper static pressure mold 1 and the lower static pressure mold 2 are both provided with limiting grooves, and dynamic sealing rings 6 are provided in the limiting grooves, and the dynamic sealing rings 6 are embedded in the limiting grooves. The pressure surfaces of the upper static pressure mold 1 and the lower static pressure mold 2 are recessed inwardly to provide pressure grooves, and the pressure grooves are filled with pressure strips 7; one end of the pressure strip 7 is flush with the pressure surface, and the other end of the pressure strip 7 is connected to the dynamic sealing ring 6. By adjusting the pressure inside the dynamic sealing ring 6, the dynamic sealing ring 6 can squeeze and drive the pressure strip 7 to move in the direction of the steel belt, so that the pressure strip 7 can fit the upper steel belt and the lower steel belt tightly.

[0033] The dynamic sealing ring 6 is provided with a receiving cavity 61, and the upper static pressure mold 1 and the lower static pressure mold 2 are provided with medium injection holes 5, the medium injection holes 5 are connected with the receiving cavity 61, and the medium injection holes 5 are used to connect to an external pressure supply device, based on which the dynamic sealing ring 6 can be pressurized.

[0034] Furthermore, the external pressure supply device can be a hydraulic station, which can adjust the shape of the dynamic sealing ring 6 by injecting high-pressure liquid into the interior of the dynamic sealing ring 6, so that the dynamic sealing ring 6 fits on the pressure strip 7 inside the upper static pressure mold 1 and the lower static pressure mold 2. The external pressure supply device can also be an air pressure station, which can inject high-pressure gas into the dynamic sealing ring 6, so that the dynamic sealing ring 6 maintains a tight fit and extrusion drive on the pressure strip 7. When the pressure strip 7 is worn and lost during use, the driving force compensation is performed based on the extrusion of the pressure strip 7 by the dynamic sealing ring 6, thereby realizing dynamic adjustment of the tight fit between the pressure strip 7 and the steel belt.

[0035] For details, please refer to Figure 3 and Figure 4The dynamic sealing ring 6 includes: a steel skeleton 62 and a sealing ring body 63 arranged on the steel skeleton 62; the sealing ring body 63 includes: a steel wire layer 633, a cord layer 632 and a rubber layer 631 arranged in sequence from the inside to the outside, and the steel wire layer 633, the cord layer 632 and the rubber layer 631 are bent to form the accommodating cavity 61. The steel wire layer 633 can improve the overall plasticity of the sealing ring body 63, so that the sealing ring body 63 can be shaped during the fitting process, that is, the sealing ring body 63 can dynamically adjust its own shape according to actual sealing requirements, maintain good contact with the pressure strip 7, and provide sufficient extrusion driving force for the pressure strip 7, so that the pressure strip 7 and the steel belt can achieve a good fitting and sealing state.

[0036] Furthermore, the steel skeleton 62 is arranged in the rubber layer 631, and the steel skeleton 62 is arranged at the position where the dynamic sealing ring 6 and the limiting groove are connected. The steel skeleton 62 is used to improve the overall rigidity of the dynamic sealing ring 6 so that the dynamic sealing ring 6 can be supported in the limiting groove.

[0037] Specifically, in the present embodiment, the dynamic sealing ring 6 is a semi-open structure, and lips 64 are provided on both side edges of the cross section of the sealing ring body 63. The sealing ring body 63 cooperates with the two sides of the limiting groove based on the lips 64, that is, the sealing ring body 63 improves the connection tightness between the sealing ring body 63 and the limiting groove through the lips 64.

[0038] Furthermore, when installing the dynamic sealing ring 6, one side lip 64 of the sealing ring body 63 is fitted on one side of the limiting groove, and the other side lip 64 of the dynamic sealing ring 6 is fitted on the other side of the limiting groove by extrusion, so as to achieve a tight fit between the dynamic sealing ring 6 and the limiting groove.

[0039] Furthermore, the angle formed between the lips 64 on both sides of the dynamic sealing ring 6 is θ, and the value range of θ is: 160°≤θ<180°. The lips 64 on both sides are set with a larger angle to increase the contact area between the two sides of the sealing ring body 63 and the limiting groove, thereby improving the connection tightness between the sealing ring body 63 and the limiting groove.

[0040] Furthermore, the working principle of the continuous static pressure hot press is as follows: the dynamic sealing ring 6 is adjusted through an external pressure supply station so that the dynamic sealing ring 6 can fit into the pressure strip 7 in the pressure groove, and the pressure strip 7 can fit tightly against the upper steel belt or the lower steel belt. When the pressure strip 7 is consumed, the dynamic sealing ring 6 can extrude the pressure strip 7 based on the external pressure supply equipment so that the pressure strip 7 moves outward for sealing compensation, thereby ensuring that the pressure strip 7 fits tightly against the upper steel belt or the lower steel belt, thereby improving the sealing reliability of the continuous static pressure hot press.

[0041] Embodiment 2:

[0042] Please refer to Figure 5 and Figure 6 In this embodiment, the dynamic sealing ring 6 is a fully sealed structure. The dynamic sealing ring 6 is provided with an input pipe 65. The input pipe 65 is communicated with the accommodating chamber 61. The sealing body encloses the accommodating chamber 61 in a closed state. The input pipe 65 is plugged into the medium injection channel, so that the external pressure supply equipment can pressurize the accommodating chamber 61 of the dynamic sealing ring 6 through the input pipe 65, and the dynamic sealing ring 6 can dynamically adjust its own state based on the pressurization of the pressure supply equipment, so that the dynamic sealing ring 6 can drive the pressure strip 7 to fit closely to the upper steel belt and the lower steel belt.

[0043] The embodiment of the utility model provides a continuous static pressure hot press, which provides a dynamic sealing ring 6 in the static pressure mold and adjusts the pressure of the medium injected into the sealing ring accommodating cavity 61, so that the dynamic sealing ring 6 can provide driving force compensation to the pressure strip 7 according to the actual sealing demand, so that the pressure strip 7 can make real-time dynamic sealing adjustment to the steel belt, realize dynamic and tight fitting between the pressure strip 7 and the steel belt, and improve the sealing reliability of the static press.

[0044] In addition, the above is a detailed introduction to a continuous static pressure hot press provided by an embodiment of the utility model. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A continuous static hot press, characterized in that: The continuous static hot press comprises: an upper static pressing die and a lower static pressing die which are mutually matched, and a pressing space for accommodating the steel strip is formed between the upper static pressing die and the lower static pressing die; The pressure surfaces of the upper static pressure mold and the lower static pressure mold are both provided with limiting grooves, and dynamic sealing rings are provided in the limiting grooves; The dynamic sealing ring is provided with a receiving cavity, and the upper static pressure mold and the lower static pressure mold are provided with medium injection channels, and the medium injection channels are connected with the receiving cavity; The pressure surfaces of the upper static pressure mold and the lower static pressure mold are inwardly recessed to form pressure grooves, and the pressure grooves are filled with pressure strips; One end of the pressure strip is flush with the pressure surface, and the other end of the pressure strip is connected to the dynamic sealing ring.

2. The continuous static hot press machine according to claim 1, characterized in that: The dynamic sealing ring comprises: a steel frame and a sealing ring body arranged on the steel frame; The sealing ring body comprises: a steel wire layer, a cord layer and a rubber layer which are arranged in sequence from the inside to the outside, and the steel wire layer, the cord layer and the rubber layer are bent to form an accommodating cavity.

3. The continuous static hot press machine according to claim 2, characterized in that: The steel skeleton is arranged in the rubber layer.

4. The continuous static hot press machine according to claim 2, characterized in that: The dynamic sealing ring is a semi-open structure, or the dynamic sealing ring is a fully sealed structure.

5. The continuous static hot press machine according to claim 4, characterized in that: When the dynamic sealing ring is a semi-open structure, lips are arranged on both sides of the sealing ring body.

6. The continuous static hot press machine according to claim 5, characterized in that: The angle formed between the lips on both sides of the dynamic sealing ring is θ; The value range of θ is: 160°≤θ<180°.

7. The continuous static hot press machine according to claim 2, characterized in that: When the dynamic sealing ring is in a fully sealed state, the dynamic sealing ring is provided with an input pipe, and the input pipe is communicated with the accommodating cavity.

8. The continuous static hot press machine according to claim 7, characterized in that: The input pipe is plug-fitted into the medium injection channel.

9. The continuous static hot press machine according to claim 1, characterized in that: The continuous static pressure hot press also includes a first pair of rollers and a second pair of rollers, and the first pair of rollers and the second pair of rollers are symmetrically distributed on both sides of the upper static pressure mold and the lower static pressure mold.

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