Glass fiber reinforced plastic mold convenient to demold

Abstract

The utility model discloses a glass fiber reinforced plastic mould convenient to demould, which comprises a base and a mould body, the mould body consists of an upper mould and a lower mould, symmetrically arranged side plates are fixedly arranged on the base, a transverse plate is fixedly arranged between the two side plates, a lifting component is fixedly arranged on the transverse plate, and the lifting component is fixedly arranged on the upper mould and the lower mould. The upper die is installed on the lifting assembly. In the using process of the mold, air in the inflator pump enters the air bag while the upper mold is lifted through the lifting assembly, the air bag bulges to jack up the top plate, a finished product in the lower mold is jacked up by the jacked-up top plate, and meanwhile the other part of air is evenly distributed between the finished product and the lower mold through the flow dividing pipe. And on the basis of the top plate, the demolding effect of a finished product in the lower mold is better through pushing of airflow, finally, the top plate is restored to the original position through the reset assembly, new finished products can be conveniently manufactured, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold structures, in particular to a glass fiber reinforced plastic mold which is easy to demould. Background Art

[0002] FRP, or fiber reinforced plastic, generally refers to reinforced plastics with unsaturated polyester, epoxy resin and phenolic resin matrices reinforced with glass fiber, with glass fiber or its products as reinforcing materials. It is called glass fiber reinforced plastics, or FRP. Due to its unique performance advantages, FRP materials have been widely used in more than a dozen related industries such as aerospace, railways, decoration and construction.

[0003] In the prior art, a Chinese patent with publication number "CN219563852U" discloses a glass fiber reinforced plastic mold that is easy to demold. The mold is connected to an external vacuum pump structure through a suction pipe and to external high-pressure compressed air through an air blowing pipe. The upper mold base, the inner mold base and the outer mold base are all made of glass fiber reinforced plastic material. The upper mold base matches the lower mold base composed of the inner mold base and the outer mold base. After the raw material is filled and solidified, the upper mold base is controlled to move upward by a certain distance so that the upper surface of the solidified product is separated from the upper mold base while the skirt does not separate from the lower mold base. At this time, the air jet ejects air at high speed, and the demolding plate is lifted upward under the action of air pressure. At the same time, the suction pipe sucks the upper air of the solidified product, which solves the problem that most of the demolding methods after the existing glass fiber reinforced plastic molds are used for product demolding, which mainly adopts the traditional demolding method, mainly using wedges, manual prying, hard lifting after the product is fixed by equipment, and hard ejection by ejector columns. The demolding is laborious, and the product is easily damaged during demolding, affecting the quality of the finished product, and the work efficiency is low.

[0004] However, the existing technology still has major deficiencies, such as:

[0005] In the production process of preparing finished products with FRP molds, firstly, the corresponding various raw materials are added to the FRP mold. After the product is solidified, it is demolded to obtain the finished product. As in the scheme described above, the stripping plate is lifted up by the action of air pressure, and the stripping plate lifts up the finished product in the mold at the same time. However, in the above scheme, after the stripping plate is lifted up, personnel need to manually restore the stripping plate to its original position, and the sealing between the stripping plate and the lower module needs to be ensured before new products can be produced. Since manual resetting takes a certain amount of time, it will affect the efficiency of finished product production. Utility Model Content

[0006] The utility model aims to provide a glass fiber reinforced plastic mold which is easy to demould, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A glass fiber reinforced plastic mold for easy demoulding, comprising a base and a mold body, the mold body consisting of an upper mold and a lower mold, the base is fixedly mounted with symmetrically arranged side plates, a transverse plate is fixedly mounted between the two side plates, a lifting assembly is fixedly mounted on the transverse plate, the upper mold is mounted on the lifting assembly, and the lower mold is mounted on the upper end surface of the base;

[0009] The transverse plate is provided with a pushing assembly, the pushing assembly is mounted with a top plate, and the top plate is slidably mounted on the inner bottom of the lower mold.

[0010] Preferably, the lifting assembly includes an electric push rod and a sliding block, the electric push rod is installed on the horizontal plate, the output shaft of the electric push rod is installed on the upper mold, the sliding block is installed on the side end surface of the upper mold, and the side plate is provided with a sliding groove used in conjunction with the sliding block.

[0011] Preferably, the pushing assembly includes an inflating cylinder and a mounting groove, the inflating cylinder is installed on a horizontal plate, the mounting groove is arranged at the inner bottom of the lower mold, a pushing rod is movably installed on the inflating cylinder, one end of the pushing rod away from the inflating cylinder is installed on a sliding block, the inflating cylinder is connected to an exhaust pipe, and one end of the exhaust pipe away from the inflating cylinder is connected to an airbag.

[0012] Preferably, a placement groove is provided at the inner bottom of the installation groove, the airbag is installed in the placement groove, the position of the airbag is below the top plate, and the top plate is installed in the installation groove.

[0013] Preferably, the exhaust pipe is connected to a diverter pipe, and one end of the diverter pipe away from the exhaust pipe is connected to the mounting groove.

[0014] Preferably, a reset assembly is provided on the top plate, and the reset assembly includes a lifting rod and a lifting slot, the top end of the lifting rod is installed on the lower end surface of the top plate, a lifting block is installed on the end of the lifting rod away from the top plate, a spring is fixedly installed on the lifting block, and the end of the spring away from the lifting block is installed on the inner top of the lifting slot.

[0015] Preferably, the airbag is connected to a discharge pipe, one end of the discharge pipe away from the airbag extends to the outside of the lower mold, and a valve is installed on the discharge pipe.

[0016] Preferably, a stabilizing plate is fixedly mounted on both the transverse plate and the base, and a positioning groove is provided on the stabilizing plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In the utility model, the upper mold is lifted by the electric push rod in the lifting assembly. When the upper mold is lifted, it drives the push rod on the sliding block so that part of the gas generated by the inflator enters the airbag. The bulging of the airbag lifts up the top plate. The lifted top plate lifts up the finished product in the lower mold. At the same time, another part of the gas is evenly distributed between the finished product and the lower mold through the shunt pipe. On the basis of the top plate, the airflow pushes the finished product in the lower mold to have a better demoulding effect, thereby improving the practicality of the device.

[0019] 2. In the utility model, after the finished product in the lower mold is demolded, the personnel discharge the gas in the airbag through the discharge pipe. At this time, the top plate will return to its original position through the reset function of the spring. At the same time, the lifting rod and the lifting block are used to slide in the positioning groove to limit the position, so that the top plate will not be offset when it is reset, thereby further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 3 It is a cross-sectional view of the lower template in the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the airbag in the utility model;

[0024] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0025] In the figure: 1. base; 2. upper mold; 3. lower mold; 4. side plate; 5. horizontal plate; 6. top plate; 7. electric push rod; 8. sliding block; 9. sliding groove; 10. inflator; 11. mounting groove; 12. push rod; 13. exhaust pipe; 14. air bag; 15. placement groove; 16. shunt pipe; 17. lifting rod; 18. lifting groove; 19. lifting block; 20. spring; 21. discharge pipe; 22. valve; 23. stabilizing plate. DETAILED DESCRIPTION

[0026] 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 in 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.

[0027] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0028] A glass fiber reinforced plastic mold for easy demoulding comprises a base 1 and a mold body, the mold body consists of an upper mold 2 and a lower mold 3, the base 1 is fixedly provided with symmetrically arranged side plates 4, a transverse plate 5 is fixedly provided between the two side plates 4, a lifting assembly is fixedly provided on the transverse plate 5, the upper mold 2 is installed on the lifting assembly, the lower mold 3 is installed on the upper end surface of the base 1, a pushing assembly is provided on the transverse plate 5, a top plate 6 is installed on the pushing assembly, the top plate 6 is slidably installed on the inner bottom of the lower mold 3, a stabilizing plate 23 is fixedly provided on the transverse plate 5 and the base 1, a positioning groove is provided on the stabilizing plate 23, and the stability of the exhaust pipe 13 and the diverter pipe 16 is ensured by the positioning groove on the stabilizing plate 23, so that the exhaust pipe 13 and the diverter pipe 16 will not shake;

[0029] The lifting assembly includes an electric push rod 7 and a sliding block 8. The electric push rod 7 is installed on the cross plate 5, the output shaft of the electric push rod 7 is installed on the upper mold 2, the sliding block 8 is installed on the side end surface of the upper mold 2, and a sliding groove 9 for use with the sliding block 8 is opened on the side plate 4. The sliding block 8 slides in the sliding groove 9 to prevent the upper mold 2 from positional displacement during lifting.

[0030] The pushing assembly includes an inflatable cylinder 10 and a mounting groove 11. The gas generated by the two inflatable cylinders 10 can just inflate the airbag 14, and the inflated airbag 14 is convenient for lifting the top plate 6. The inflatable cylinder 10 is installed on the cross plate 5. The inflatable cylinder 10 is connected to the air inlet pipe, which is not drawn in the figure. The mounting groove 11 is arranged at the inner bottom of the lower mold 3. A pushing rod 12 is movably installed on the inflatable cylinder 10. There is a piston on the pushing rod 12. The piston is inside the inflatable cylinder 10. The principle of the inflatable cylinder 10 is the same as the principle of the air pump in the prior art. This technology is well known to people in this field and will not be described in detail here. The end of the pushing rod 12 away from the inflatable cylinder 10 is installed on the sliding block 8, the inflation cylinder 10 is connected with an exhaust pipe 13, one end of the exhaust pipe 13 away from the inflation cylinder 10 extends to the inside of the placement groove 15, the one end of the exhaust pipe 13 away from the inflation cylinder 10 is connected with an airbag 14, the airbag 14 is connected with a discharge pipe 21, the one end of the exhaust pipe 13 away from the airbag 14 extends to the outside of the lower mold 3, a valve 22 is installed on the discharge pipe 21, a placement groove 15 is provided at the inner bottom of the mounting groove 11, the airbag 14 is installed in the placement groove 15, the position of the airbag 14 is below the top plate 6, the top plate 6 is installed in the mounting groove 11, the exhaust pipe 13 is connected with a shunt pipe 16, and the end of the shunt pipe 16 away from the exhaust pipe 13 is connected to the mounting groove 11.

[0031] In this embodiment, the upper mold 2 is lifted by the electric push rod 7 in the lifting assembly. When the upper mold 2 is lifted, it will drive the push rod 12 on the sliding block 8 to allow part of the gas generated by the inflation cylinder 10 to enter the airbag 14. The bulging of the airbag 14 will lift the top plate 6. The lifted top plate 6 will lift the finished product in the lower mold 3. At the same time, another part of the gas will be evenly distributed between the finished product and the lower mold 3 through the diversion pipe 16. On the basis of the top plate 6, the airflow is pushed to make the demolding effect of the finished product in the lower mold 3 better, thereby improving the practicality of the device. Example

[0032] On the basis of Example 1, in order to enable the top plate 6 to automatically return to its original position and facilitate the production of a new glass fiber reinforced plastic flat plate, a reset component is used to achieve this effect. A reset component is provided on the top plate 6, and the reset component includes a lifting rod 17 and a lifting groove 18. The lifting groove 18 is arranged inside the inner bottom of the lower mold 3, and the top end of the lifting rod 17 is installed on the lower end surface of the top plate 6. A lifting block 19 is installed at the end of the lifting rod 17 away from the top plate 6, and a spring 20 is fixedly installed on the lifting block 19. The end of the spring 20 away from the lifting block 19 is installed on the inner top of the lifting groove 18. A stabilizing plate 23 is fixedly installed on both the cross plate 5 and the base 1, and a positioning groove is provided on the stabilizing plate 23.

[0033] In this embodiment, after the finished product in the lower mold 3 is demolded, the personnel discharge the gas in the airbag 14 through the discharge pipe 21. At this time, the top plate 6 will be restored to its original position through the reset function of the spring 20. At the same time, the lifting rod 17 and the lifting block 19 are used to slide in the positioning groove to prevent the top plate 6 from positional displacement when it is reset, thereby further improving the practicality of the device.

[0034] Working principle:

[0035] When in use, the upper mold 2 is lifted by the electric push rod 7 in the lifting assembly. At this time, the sliding block 8 installed on the upper mold 2 slides in the sliding groove 9, ensuring the stability of the upper mold 2 when it is lifted. When the upper mold 2 is lifted, the push rod 12 on the sliding block 8 is lifted. The lifted push rod 12 moves the piston in the inflatable cylinder 10 in the inflatable cylinder 10. At this time, part of the gas generated by the inflatable cylinder 10 enters the air bag 14 through the exhaust pipe 13. The bulging of the air bag 14 will lift the top plate 6, and the lifted top plate 6 will lift the finished product in the lower mold 3.

[0036] Another part of the gas in the exhaust pipe 13 is evenly distributed between the finished product and the lower mold 3 through the diverter pipe 16, and the airflow is pushed on the basis of the top plate 6 to make the demoulding effect of the finished product in the lower mold 3 better;

[0037] After the finished product in the lower mold 3 is demoulded, the personnel discharge the gas in the airbag 14 through the discharge pipe 21. At this time, the top plate 6 will be restored to its original position through the reset function of the spring 20. At the same time, the lifting rod 17 and the lifting block 19 are used to slide in the positioning groove to prevent the top plate 6 from positional displacement when it is reset, thereby further improving the practicality of the device.

[0038] The exhaust pipe 13, the exhaust pipe 21 and the intake pipe are all provided with one-way valves, which are prior art and will not be described in detail here.

[0039] 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. A glass fiber reinforced plastic mold that is easy to demould, comprising a base (1) and a mold body, wherein the mold body is composed of an upper mold (2) and a lower mold (3), and is characterized in that: The base (1) is fixedly mounted with symmetrically arranged side panels (4), a transverse panel (5) is fixedly mounted between the two side panels (4), a lifting assembly is fixedly mounted on the transverse panel (5), the upper mold (2) is mounted on the lifting assembly, and the lower mold (3) is mounted on the upper end surface of the base (1); The horizontal plate (5) is provided with a pushing assembly, the pushing assembly is mounted with a top plate (6), and the top plate (6) is slidably mounted on the inner bottom of the lower mold (3).

2. The glass fiber reinforced plastic mold that is easy to demould according to claim 1, characterized in that: The lifting assembly comprises an electric push rod (7) and a sliding block (8), wherein the electric push rod (7) is mounted on the horizontal plate (5), the output shaft of the electric push rod (7) is mounted on the upper mold (2), the sliding block (8) is mounted on the side end surface of the upper mold (2), and the side plate (4) is provided with a sliding groove (9) for use with the sliding block (8).

3. The glass fiber reinforced plastic mold that is easy to demould according to claim 1, characterized in that: The pushing assembly comprises an inflating cylinder (10) and a mounting groove (11), wherein the inflating cylinder (10) is mounted on the horizontal plate (5), and the mounting groove (11) is arranged at the inner bottom of the lower mold (3). A pushing rod (12) is movably mounted on the inflating cylinder (10), and one end of the pushing rod (12) away from the inflating cylinder (10) is mounted on the sliding block (8). The inflating cylinder (10) is connected to an exhaust pipe (13), and one end of the exhaust pipe (13) away from the inflating cylinder (10) is connected to an air bag (14).

4. The glass fiber reinforced plastic mold that is easy to demould according to claim 3 is characterized in that: The inner bottom of the installation groove (11) is provided with a placement groove (15), and the airbag (14) is installed in the placement groove (15). The position of the airbag (14) is below the top plate (6), and the top plate (6) is installed in the installation groove (11).

5. The glass fiber reinforced plastic mold that is easy to demould according to claim 4, characterized in that: The exhaust pipe (13) is connected to a shunt pipe (16), and one end of the shunt pipe (16) away from the exhaust pipe (13) is connected to the mounting groove (11).

6. The glass fiber reinforced plastic mold that is easy to demould according to claim 1, characterized in that: The top plate (6) is provided with a reset assembly, the reset assembly comprising a lifting rod (17) and a lifting slot (18), the top end of the lifting rod (17) being mounted on the lower end surface of the top plate (6), a lifting block (19) being mounted on the end of the lifting rod (17) away from the top plate (6), a spring (20) being fixedly mounted on the lifting block (19), and an end of the spring (20) away from the lifting block (19) being mounted on the inner top of the lifting slot (18).

7. The glass fiber reinforced plastic mold that is easy to demould according to claim 4, characterized in that: The airbag (14) is connected to a discharge pipe (21), one end of the exhaust pipe (13) away from the airbag (14) extends to the outside of the lower mold (3), and a valve (22) is installed on the discharge pipe (21).

8. The fiberglass mold for easy demoulding according to claim 1, characterized in that: A stabilizing plate (23) is fixedly mounted on both the transverse plate (5) and the base (1), and a positioning groove is provided on the stabilizing plate (23).

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