Lower die control structure

Abstract

The lower mold control structure comprises a lower mold, a vacuumizing assembly, a vacuum elimination assembly and a demolding blowing assembly, the lower mold is connected with a vacuum instrument assembly, the vacuum instrument assembly is connected with a protection assembly, and the vacuumizing assembly is connected with the lower mold and can vacuumize the lower mold and adsorb and fix a product; the vacuum elimination assembly is connected with the lower mold and can eliminate vacuum of the lower mold and cancel fixation of the product; the demolding and blowing assembly is connected with the lower mold and can conduct demolding and blowing on the lower mold so as to assist part taking, the protection assembly can protect the vacuum instrument assembly in the vacuum elimination and demolding and blowing process, the vacuum instrument assembly is prevented from being damaged due to positive pressure impact, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of molds, and specifically relates to a lower mold control structure. Background Art

[0002] In workshop production, molds are usually used to perform compression molding on products. The lower mold is used to fix the product. The upper mold cooperates with the lower mold to complete the compression molding of the product. The lower mold is vacuumed to adsorb and fix the product. After compression molding, the lower mold is de-vacuumed. When removing the part, the lower mold is demoulded and blown to assist in removing the part. During the de-vacuuming and demoulding blowing process, the lower mold is under positive pressure, which can easily damage the vacuum instrument components of the lower mold, thereby increasing production costs.

[0003] To solve the above problems, patent document 213412720U discloses a sensor vacuum packaging protection molding mold and device, the molding device includes a molding mold, a vacuum sealing bag, an inlet tube, and an outlet tube, the vacuum sealing bag wraps the molding mold, the inlet tube and the outlet tube are respectively connected to the molding mold, the molding mold includes a mold, a plurality of end caps, the mold includes an upper mold and a lower mold, the upper mold or the lower mold is respectively provided with a plurality of grooves, the grooves of the upper mold and the lower mold are relatively matched, a plurality of end caps are respectively provided on both sides of the mold, and a plurality of end caps are respectively inserted into the inside of the grooves; a wire lead-out cavity and an end molding cavity are provided inside the end cap, the diameter of the end molding cavity is larger than the diameter of the wire lead-out cavity, and an injection through hole is provided on the side of the end molding cavity, but the above problems cannot be solved. Utility Model Content

[0004] The present invention is designed to solve the above problems and aims to provide a lower mold control structure that can protect the vacuum instrument during the process of vacuum elimination and demoulding and blowing, can prevent the vacuum instrument from being damaged by positive pressure impact, and can reduce production costs. In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] The utility model provides a lower mold control structure with the following characteristics: it includes a lower mold, a vacuum pumping component, a vacuum elimination component and a demoulding and blowing component; the lower mold is connected to a vacuum instrument component, the vacuum instrument component is connected to a protection component, the vacuum pumping component is connected to the lower mold, the vacuum elimination component is connected to the lower mold, and the demoulding and blowing component is connected to the lower mold.

[0006] The lower mold control structure provided by the present invention may also have the following features: the vacuum assembly includes a vacuum pump and a vacuum proportional valve; the vacuum pump is connected to the lower mold; and the vacuum proportional valve is arranged between the vacuum pump and the lower mold.

[0007] In the lower mold control structure provided by the present invention, it can also have such a feature that one end of the vacuum elimination component is connected to the lower mold, and the other end is connected to the air source. The vacuum elimination component includes a vacuum elimination switch valve and a first solenoid valve. The vacuum elimination switch valve is connected to the first solenoid valve. The vacuum elimination switch valve and the first solenoid valve are arranged between the lower mold and the air source.

[0008] In the lower mold control structure provided by the present invention, it can also have such a feature that one end of the demoulding blowing assembly is connected to the lower mold, and the other end is connected to the air source. The demoulding blowing assembly includes a demoulding blowing switch valve and a second solenoid valve. The demoulding blowing switch valve is connected to the second solenoid valve. The demoulding blowing switch valve and the second solenoid valve are arranged between the lower mold and the air source.

[0009] The lower mold control structure provided by the present invention may also have the following feature: a pressure reducing valve is provided between the demoulding air blowing switch valve and the air source.

[0010] The lower mold control structure provided by the present invention may also have the following features: a vacuum instrument assembly is connected to the lower mold, and the vacuum instrument assembly includes a vacuum sensor and a vacuum gauge.

[0011] In the lower mold control structure provided by the present invention, it can also have such a feature that the protection component includes a three-way valve, an instrument safety switch valve and a one-way valve, the three-way valve is respectively connected to the vacuum instrument component, the lower mold and the instrument safety switch valve, and the one-way valve is arranged between the three-way valve and the lower mold.

[0012] In the lower mold control structure provided by the present invention, it can also have such a feature that the protection component also includes a logic valve, the logic valve is connected to the instrument safety switch valve, the logic valve is provided with a first OR gate and a second OR gate, the first OR gate is connected to the vacuum elimination component, and the second OR gate is connected to the demolding blowing component.

[0013] The technical effect of the utility model is as follows: the lower mold control structure provided by the utility model includes a lower mold, a vacuum pumping component, a vacuum elimination component and a demoulding and blowing component. The lower mold is connected to a vacuum instrument component, and the vacuum instrument component is connected to a protective component. The vacuum pumping component is connected to the lower mold and can vacuum the lower mold to adsorb and fix the product; the vacuum elimination component is connected to the lower mold and can eliminate the vacuum of the lower mold and cancel the fixation of the product; the demoulding and blowing component is connected to the lower mold and can blow air to demould the lower mold, thereby assisting in removing parts. The protective component can protect the vacuum instrument component during the vacuum elimination and demoulding and blowing process to prevent the vacuum instrument component from being damaged by positive pressure impact.

[0014] Therefore, the lower mold control structure provided by the present invention can protect the vacuum instrument during the process of vacuum elimination and demoulding and blowing, avoiding damage to the vacuum instrument caused by positive pressure impact, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] This manual includes the following drawings, which show the following contents:

[0016] Figure 1 It is a structural schematic diagram of the lower mold control structure in an embodiment of the present utility model.

[0017] Marked in the figure: 10-lower mold, 20-vacuum extraction component, 21-vacuum pump, 22-vacuum extraction proportional valve, 30-vacuum elimination component, 31-vacuum elimination switch valve, 32-first solenoid valve, 40-mold stripping and blowing component, 41-mold stripping and blowing switch valve, 42-second solenoid valve, 43-pressure reducing valve, 50-vacuum instrument component, 51-vacuum sensor, 52-vacuum gauge, 60-protection component, 61-three-way valve, 62-instrument safety switch valve, 63-check valve, 64-logic valve, 641-first OR gate, 642-second OR gate, 70-air source. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation methods of the present invention through the description of the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate their implementation.

[0019] Figure 1 It is a structural schematic diagram of the lower mold control structure in an embodiment of the present utility model.

[0020] like Figure 1 As shown, the lower mold control structure provided by the present invention includes a lower mold 10, a vacuum pumping component 20, a vacuum elimination component 30 and a demoulding and blowing component 40. The lower mold 10 is connected to a vacuum instrument component 50, and the vacuum instrument component 50 is connected to a protection component 60. The vacuum pumping component 20 is connected to the lower mold 10, and can vacuum the lower mold 10 to adsorb and fix the product; the vacuum elimination component 30 is connected to the lower mold 10, and can eliminate the vacuum of the lower mold 10 and cancel the fixation of the product; the demoulding and blowing component 40 is connected to the lower mold 10, and can blow air to demould the lower mold 10, thereby assisting in removing the parts. The protection component 60 can protect the vacuum instrument component 50 during the vacuum elimination and demoulding and blowing process, and prevent the vacuum instrument component 50 from being damaged by positive pressure impact, thereby reducing production costs.

[0021] The vacuum pump assembly 20 includes a vacuum pump 21 and a vacuum proportional valve 22. The vacuum pump 21 is connected to the lower mold 10. The vacuum pump 21 can vacuum the lower mold 10. The vacuum proportional valve 22 is arranged between the vacuum pump 21 and the lower mold 10. The vacuum proportional valve 22 can conveniently adjust the vacuum pressure output by the vacuum pump assembly 20, thereby facilitating the adjustment of the vacuum pressure of the lower mold 10 when adsorbing and fixing the product according to actual production needs, thereby improving the reliability of the structure.

[0022] One end of the vacuum degassing component 30 is connected to the lower mold 10, and the other end of the vacuum degassing component 30 is connected to the air source 70. The vacuum degassing component 30 can transport the compressed air of the air source 70 into the lower mold 10 to de-vacuum the lower mold 10. The vacuum degassing component 30 includes a vacuum degassing switch valve 31 and a first solenoid valve 32. The vacuum degassing switch valve 31 is connected to the first solenoid valve 32. The vacuum degassing switch valve 31 and the first solenoid valve 32 are arranged between the lower mold 10 and the air source 70. When the first solenoid valve 32 is opened and the vacuum degassing switch valve 31 is opened, the vacuum degassing component 30 transports the compressed air of the air source 70 into the lower mold 10 to de-vacuum the lower mold 10.

[0023] One end of the demoulding blowing assembly 40 is connected to the lower mold 10, and the other end of the demoulding blowing assembly 40 is connected to the air source 70. The demoulding blowing assembly 40 can transport the compressed air of the air source 70 into the lower mold 10, perform demoulding and blowing on the lower mold 10, and assist in removing the product. The demoulding blowing assembly 40 includes a demoulding blowing switch valve 41 and a second solenoid valve 42. The demoulding blowing switch valve 41 is connected to the second solenoid valve 42. The demoulding blowing switch valve 41 and the second solenoid valve 42 are arranged between the lower mold 10 and the air source 70. When the second solenoid valve 42 is opened, the demoulding blowing switch valve 41 is opened, and the demoulding blowing assembly 40 transports the compressed air of the air source 70 into the lower mold 10, performs demoulding and blowing on the lower mold 10, and assists in removing the product.

[0024] A pressure reducing valve 43 is provided between the demoulding blowing switch valve 41 and the gas source 70. The pressure reducing valve 43 can conveniently adjust the gas pressure during demoulding blowing to prevent the upper mold 10 and the product from being unable to be separated due to too low air pressure, thereby improving the reliability of the structure.

[0025] The vacuum instrument assembly 50 is connected to the lower mold 10. The vacuum instrument assembly 50 includes a vacuum sensor 51 and a vacuum gauge 52. The vacuum sensor 51 can detect the vacuum environment of the lower mold 10 during the vacuuming process. The vacuum gauge 52 can detect the negative pressure of the lower mold 10 during the vacuuming process, thereby facilitating the control of the suction force of the lower mold 10 when adsorbing and fixing the product, thereby ensuring that the product can be firmly fixed and improving the reliability of the structure.

[0026] The protection assembly 60 includes a three-way valve 61, an instrument safety switch valve 62 and a one-way valve 63. The three-way valve 61 is respectively connected to the vacuum instrument assembly 50, the lower mold 10 and the instrument safety switch valve 62. The one-way valve 63 is arranged between the three-way valve 61 and the lower mold 10. The one-way valve 63 limits the flow between the vacuum instrument assembly 50 and the lower mold 10 to only from the vacuum instrument assembly 50 to the lower mold 10. The one-way valve 63 can prevent the air in the lower mold 10 from continuously filling into the vacuum instrument assembly 50 during the vacuum elimination and demolding blowing process, thereby avoiding damage to the vacuum instrument due to positive pressure impact.

[0027] The protection component 60 also includes a logic valve 64, which is connected to the instrument safety switch valve 62. The logic valve 64 is provided with a first OR gate 641 and a second OR gate 642. The first OR gate 641 is connected to the vacuum elimination component 30, the first OR gate 641 is connected to the first solenoid valve 32, the second OR gate 642 is connected to the demolding blowing component 40, and the second OR gate 642 is connected to the second solenoid valve 42.

[0028] When the vacuum assembly 20 is working, the vacuum pump 21 is started, the vacuum proportional valve 22 is opened, the vacuum elimination switch valve 31 is closed, the first solenoid valve 32 is closed, the demoulding blowing switch valve 41 is closed, the second solenoid valve 42 is closed, the pressure reducing valve 43 is closed, the first OR gate 641 and the second OR gate 642 on the logic valve 64 are both airless, the instrument safety switch valve 62 is closed, the vacuum sensor 51 and the vacuum gauge 52 are working, and can detect the vacuum pressure of the lower mold 10 during the vacuum process. The vacuum sensor 51 and the vacuum gauge 52 operate normally.

[0029] When the vacuum elimination component 30 is working, the vacuum pump 21 is shut down, the vacuum proportional valve 22 is closed, the vacuum elimination switch valve 31 is opened, the first solenoid valve 32 is opened, the demoulding blowing switch valve 41 is closed, the second solenoid valve 42 is closed, the pressure reducing valve 43 is closed, and gas passes through the first OR gate 641 on the logic valve 64. The first solenoid valve 32 guides part of the gas from the gas source 70 to the first OR gate 641, and the second OR gate 642 is gasless. The instrument safety switch valve 62 is opened, and the gas is introduced into the vacuum instrument assembly 50, and the pressure of the vacuum sensor 51 and the vacuum gauge 52 is returned to zero. The one-way valve 63 can prevent the air in the lower mold 10 from continuously filling into the vacuum instrument assembly 50 during the vacuum elimination process, so that the vacuum sensor 51 and the vacuum gauge 52 are in a normal pressure state during the vacuum elimination process, thereby avoiding damage to the vacuum instrument assembly 50 caused by positive pressure shock and reducing production costs.

[0030] When the demoulding and blowing assembly 40 is working, the vacuum pump 21 is stopped, the vacuum proportional valve 22 is closed, the vacuum elimination switch valve 31 is closed, the first solenoid valve 32 is closed, the demoulding and blowing switch valve 41 is opened, the second solenoid valve 42 is opened, the pressure reducing valve 43 is opened, the first OR gate 641 is airless, and the second OR gate 642 has gas passing through. The second solenoid valve 42 guides part of the gas from the gas source 70 to the second OR gate 642, and the instrument safety switch valve 62 is closed. The gas is introduced into the vacuum instrument assembly 50, and the pressure of the vacuum sensor 51 and the vacuum gauge 52 is returned to zero. The one-way valve 63 can prevent the air in the lower mold 10 from continuously filling into the vacuum instrument assembly 50 during the demoulding and blowing process, so that the vacuum sensor 51 and the vacuum gauge 52 are in a normal pressure state during the demoulding and blowing process, thereby avoiding damage to the vacuum instrument assembly 50 caused by positive pressure shock and reducing production costs.

[0031] Functions and Effects of the Embodiments

[0032] The lower mold control structure provided by the present invention includes a lower mold 10, a vacuum pumping component 20, a vacuum elimination component 30 and a demoulding and blowing component 40. The lower mold 10 is connected to a vacuum instrument component 50, and the vacuum instrument component 50 is connected to a protective component 60. The vacuum pumping component 20 is connected to the lower mold 10 and can vacuum the lower mold 10 to adsorb and fix the product; the vacuum elimination component 30 is connected to the lower mold 10 and can eliminate the vacuum of the lower mold 10 and cancel the fixation of the product; the demoulding and blowing component 40 is connected to the lower mold 10 and can blow air to demould the lower mold 10 to assist in removing the parts. The protective component 60 can protect the vacuum instrument component 50 during the vacuum elimination and demoulding and blowing process to prevent the vacuum instrument component 50 from being damaged by positive pressure impact, thereby reducing production costs.

[0033] When the vacuum assembly 20 is working, the vacuum pump 21 is started, the vacuum proportional valve 22 is opened, the vacuum elimination switch valve 31 is closed, the first solenoid valve 32 is closed, the demoulding blowing switch valve 41 is closed, the second solenoid valve 42 is closed, the pressure reducing valve 43 is closed, the first OR gate 641 and the second OR gate 642 on the logic valve 64 are both airless, the instrument safety switch valve 62 is closed, the vacuum sensor 51 and the vacuum gauge 52 are working, and can detect the vacuum pressure of the lower mold 10 during the vacuum process. The vacuum sensor 51 and the vacuum gauge 52 operate normally.

[0034] When the vacuum elimination component 30 is working, the vacuum pump 21 is shut down, the vacuum proportional valve 22 is closed, the vacuum elimination switch valve 31 is opened, the first solenoid valve 32 is opened, the demoulding blowing switch valve 41 is closed, the second solenoid valve 42 is closed, the pressure reducing valve 43 is closed, and gas passes through the first OR gate 641 on the logic valve 64. The first solenoid valve 32 guides part of the gas from the gas source 70 to the first OR gate 641, and the second OR gate 642 is gasless. The instrument safety switch valve 62 is opened, and the gas is introduced into the vacuum instrument assembly 50, and the pressure of the vacuum sensor 51 and the vacuum gauge 52 is returned to zero. The one-way valve 63 can prevent the air in the lower mold 10 from continuously filling into the vacuum instrument assembly 50 during the vacuum elimination process, so that the vacuum sensor 51 and the vacuum gauge 52 are in a normal pressure state during the vacuum elimination process, thereby avoiding damage to the vacuum instrument assembly 50 caused by positive pressure shock and reducing production costs.

[0035] When the demoulding and blowing assembly 40 is working, the vacuum pump 21 is stopped, the vacuum proportional valve 22 is closed, the vacuum elimination switch valve 31 is closed, the first solenoid valve 32 is closed, the demoulding and blowing switch valve 41 is opened, the second solenoid valve 42 is opened, the pressure reducing valve 43 is opened, the first OR gate 641 is airless, and the second OR gate 642 has gas passing through. The second solenoid valve 42 guides part of the gas from the gas source 70 to the second OR gate 642, and the instrument safety switch valve 62 is closed. The gas is introduced into the vacuum instrument assembly 50, and the pressure of the vacuum sensor 51 and the vacuum gauge 52 is returned to zero. The one-way valve 63 can prevent the air in the lower mold 10 from continuously filling into the vacuum instrument assembly 50 during the demoulding and blowing process, so that the vacuum sensor 51 and the vacuum gauge 52 are in a normal pressure state during the demoulding and blowing process, thereby avoiding damage to the vacuum instrument assembly 50 caused by positive pressure shock and reducing production costs.

[0036] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. A lower mold control structure, characterized in that: The invention comprises a lower mold (10), a vacuum pumping assembly (20), a vacuum elimination assembly (30) and a demoulding and blowing assembly (40), wherein the lower mold (10) is connected to a vacuum instrument assembly (50), the vacuum instrument assembly (50) is connected to a protection assembly (60), the vacuum pumping assembly (20) is connected to the lower mold (10), the vacuum elimination assembly (30) is connected to the lower mold (10), and the demoulding and blowing assembly (40) is connected to the lower mold (10).

2. The lower mold control structure according to claim 1, characterized in that: The vacuum pumping assembly (20) comprises a vacuum pump (21) and a vacuum pumping proportional valve (22); the vacuum pump (21) is connected to the lower mold (10); and the vacuum pumping proportional valve (22) is arranged between the vacuum pump (21) and the lower mold (10).

3. The lower mold control structure according to claim 2, characterized in that: One end of the vacuum elimination component (30) is connected to the lower mold (10), and the other end is connected to the gas source (70). The vacuum elimination component (30) includes a vacuum elimination switch valve (31) and a first solenoid valve (32). The vacuum elimination switch valve (31) is connected to the first solenoid valve (32). The vacuum elimination switch valve (31) and the first solenoid valve (32) are arranged between the lower mold (10) and the gas source (70).

4. The lower mold control structure according to claim 3, characterized in that: One end of the demoulding blow assembly (40) is connected to the lower mold (10), and the other end is connected to the air source (70). The demoulding blow assembly (40) includes a demoulding blow switch valve (41) and a second solenoid valve (42). The demoulding blow switch valve (41) is connected to the second solenoid valve (42). The demoulding blow switch valve (41) and the second solenoid valve (42) are arranged between the lower mold (10) and the air source (70).

5. The lower mold control structure according to claim 4, characterized in that: A pressure reducing valve (43) is provided between the demoulding air blowing switch valve (41) and the air source (70).

6. The lower mold control structure according to claim 5, characterized in that: The vacuum instrument assembly (50) is connected to the lower mold (10), and the vacuum instrument assembly (50) includes a vacuum sensor (51) and a vacuum gauge (52).

7. The lower mold control structure according to claim 6, characterized in that: The protection assembly (60) comprises a three-way valve (61), an instrument safety switch valve (62) and a one-way valve (63); the three-way valve (61) is connected to the vacuum instrument assembly (50), the lower mold (10) and the instrument safety switch valve (62) respectively; and the one-way valve (63) is arranged between the three-way valve (61) and the lower mold (10).

8. The lower mold control structure according to claim 7, characterized in that: The protection component (60) further comprises a logic valve (64), wherein the logic valve (64) is connected to the instrument safety switch valve (62), and the logic valve (64) is provided with a first OR gate (641) and a second OR gate (642), wherein the first OR gate (641) is connected to the vacuum elimination component (30), and the second OR gate (642) is connected to the demoulding blowing component (40).

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