Mould pressing equipment for glass fiber reinforced plastic products

Abstract

The utility model relates to the technical field of production of glass fiber reinforced plastic products, and discloses mold pressing equipment for glass fiber reinforced plastic products, which comprises a mold pressing table, a lower mold is fixedly connected to the center of the upper surface of the mold pressing table, a fixing frame is fixedly connected to the upper surface of the mold pressing table, and an electric push rod is fixedly connected to the inner top surface of the fixing frame. An upper mold is arranged below the electric push rod, a fixing plate is arranged above the upper mold, an elastic piece is arranged on the bottom face of the fixing plate, a limiting block is fixedly connected to the center of the bottom face of the fixing plate, and a fixing cylinder is fixedly connected to the upper surface of the fixing plate. According to the extrusion device, through the cooperation of the fixed plate, the elastic piece, the limiting unit, the limiting block and the fixed cylinder, after raw materials are extruded, extrusion on the elastic piece can be quickly relieved, and the situation that the service life of equipment is affected due to the fact that the load of the electric push rod is increased when elastic potential energy of the elastic piece acts on the fixed plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of glass fiber reinforced plastic product production, in particular to a molding device for glass fiber reinforced plastic products. Background Art

[0002] FRP products refer to finished products made from FRP as raw materials. The scientific name of FRP is glass fiber reinforced plastic, commonly known as FRP. Compression molding technology is often used in the manufacturing process of FRP. Compression molding technology is the oldest and most effective molding method in the production of composite materials. It is a method of adding a certain amount of premix or prepreg into a metal mold, and then curing it under heating and pressurization.

[0003] After searching, Chinese patent announcement number: CN221187485U discloses a fiberglass compression molding device, including an upper mold, a telescopic rod, a mounting plate, a first spring, a first stopper and a first slide rod. The upper mold presses the fiberglass plate downward to deform the fiberglass plate. At the same time, the elastic force of the first spring is used to gradually increase the squeezing force of the upper mold on the fiberglass plate, thereby preventing the upper mold from impacting the fiberglass plate and reducing the risk of damage to the fiberglass plate.

[0004] In actual use of the above-mentioned molding equipment, after the extrusion force of the upper mold is buffered by the spring to avoid damage to the fiberglass products, after the raw materials are compression-molded, the upper mold needs to stay in the lower mold to limit the product and improve the molding quality of the product. At this time, the spring is always in a compressed state. Since the force is mutual, the elastic potential of the spring will act on the electric push rod, causing the load of the electric push rod to increase, which in turn affects the service life and effect of the electric push rod and the equipment. For this reason, a molding equipment for fiberglass products is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a molding device for fiberglass products, aiming to improve the problem in the prior art that after the extrusion force of the upper mold is released by a spring, the elastic potential of the spring will act on the electric push rod, thereby affecting the service life of the equipment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a molding equipment for glass fiber reinforced plastic products, including a molding table, a lower mold is fixedly connected to the center of the upper surface of the molding table, a fixing frame is fixedly connected to the upper surface of the molding table, an electric push rod is fixedly connected to the inner top surface of the fixing frame, an upper mold is arranged below the electric push rod, a fixing plate is arranged above the upper mold, an elastic member is arranged on the bottom surface of the fixing plate, a limiting block is fixedly connected to the center of the bottom surface of the fixing plate, a fixing cylinder is fixedly connected to the upper surface of the fixing plate, a limiting unit is arranged inside the fixing cylinder, and the limiting unit is used to limit the elastic member.

[0007] As a further description of the above technical solution:

[0008] The upper surface of the lower mold is fixedly connected with a guide rod, the bottom surfaces of the fixed plate and the upper mold are both provided with guide grooves, and the inner wall surface of the guide groove is fixedly connected with a supporting ball.

[0009] As a further description of the above technical solution:

[0010] The limiting unit includes a threaded hole, which is opened inside the fixing cylinder, the bottom end of the threaded hole passes through the fixing plate, the upper end of the fixing cylinder is fixedly connected to the limiting frame, the inside of the limiting frame is fixedly connected with a sleeve, the inner bottom end of the threaded hole is threadedly connected with a threaded block, the upper surface of the threaded block is fixedly connected with a connecting rod, and the upper end of the connecting rod is fixedly connected with a circular plate.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the elastic member is fixedly connected to the upper surface of the upper mold.

[0013] As a further description of the above technical solution:

[0014] The guide rod is sleeved inside the guide groove, and the outer wall of the support ball fits with the outer wall of the guide rod.

[0015] As a further description of the above technical solution:

[0016] The connecting rod is inserted into the interior of the sleeve, and the bottom surface of the circular plate and the upper surface of the sleeve are in contact with each other.

[0017] As a further description of the above technical solution:

[0018] The bottom surface of the threaded block is fixedly connected to the upper end of the elastic member.

[0019] As a further description of the above technical solution:

[0020] The bottom surface of the threaded block and the bottom surface of the fixing plate are located at the same horizontal plane.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by cooperating with the set fixing plate, elastic member, limiting unit, limiting block and fixing cylinder, when the upper mold enters the lower mold for compression molding, the elastic potential energy of the elastic member can be used to prevent the upper mold from directly and hard squeezing the glass fiber reinforced plastic product, thereby reducing the risk of damage. At the same time, after the raw material is squeezed, the squeezing of the elastic member can be quickly released to avoid the elastic potential energy of the elastic member acting on the fixing plate, which causes the load of the electric push rod to increase and affects the service life of the equipment.

[0023] 2. In the utility model, the movement of the fixed plate and the upper mold can be guided and limited by the cooperation of the guide rod, guide groove and support ball, so that the upper mold can be accurately moved downward into the lower mold for pressing, avoiding deviation, and at the same time reducing the friction when the fixed plate and the upper mold move, making the pressing process smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the whole of a molding device for glass fiber reinforced plastic products proposed by the utility model;

[0025] Figure 2 A schematic diagram of a cross-section of the internal part of an upper mold and a fixed plate of a molding device for glass fiber reinforced plastic products proposed by the utility model;

[0026] Figure 3 A schematic diagram of a limit frame and a sleeve of a molding device for glass fiber reinforced plastic products proposed by the utility model;

[0027] Figure 4 The utility model provides a molding equipment for glass fiber reinforced plastic products. Figure 2 Schematic diagram of part A.

[0028] Legend:

[0029] 1. Molding table; 2. Lower mold; 3. Fixed frame; 4. Electric push rod; 5. Upper mold; 6. Fixed plate; 7. Elastic member; 8. Limit block; 9. Fixed cylinder; 91. Threaded hole; 92. Limit frame; 93. Sleeve; 94. Threaded block; 95. Connecting rod; 96. Round plate; 10. Guide rod; 11. Guide groove; 12. Support ball. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1-Figure 2 The utility model provides an embodiment: a molding device for glass fiber reinforced plastic products, including a molding platform 1, a lower mold 2 is fixedly connected to the center of the upper surface of the molding platform 1, a fixing frame 3 is fixedly connected to the upper surface of the molding platform 1, an electric push rod 4 is fixedly connected to the inner top surface of the fixing frame 3, and an upper mold 5 is arranged below the electric push rod 4. After the heated raw material is placed into the lower mold 2, the electric push rod 4 can be started to drive the upper mold 5 to move downward. At this time, the lower end of the upper mold 5 can enter the lower mold 2 to extrude and mold the raw material, and the operation is simple.

[0032] Reference Figure 2-Figure 3 A fixing plate 6 is arranged above the upper mold 5, and an elastic member 7 is arranged on the bottom surface of the fixing plate 6. The bottom end of the elastic member 7 is fixedly connected to the upper surface of the upper mold 5. When the upper mold 5 moves upward relative to the fixing plate 6, the elastic member 7 can be squeezed so that the elastic member 7 is compressed to generate elastic potential energy. A limiting block 8 is fixedly connected at the center of the bottom surface of the fixing plate 6. The limiting block 8 can limit the compression degree of the elastic member 7 to prevent the upper mold 5 from excessively moving upward relative to the fixing plate 6, resulting in exceeding the compression limit of the elastic member 7, causing damage to the elastic member 7 and affecting the use effect. When the upper mold 5 enters the lower mold 2 for compression molding, the elastic force of the elastic member 7 is used to gradually increase the extrusion force of the upper mold 5 on the glass fiber reinforced plastic product, thereby preventing the upper mold 5 from directly and hard extruding the glass fiber reinforced plastic product and reducing the risk of damage to the glass fiber reinforced plastic product.

[0033] The upper surface of the fixing plate 6 is fixedly connected with a fixing cylinder 9, and a limiting unit is arranged inside the fixing cylinder 9. The limiting unit includes a threaded hole 91, and the threaded hole 91 is opened inside the fixing cylinder 9. The bottom end of the threaded hole 91 passes through the fixing plate 6. The upper end of the fixing cylinder 9 is fixedly connected with a limiting frame 92, and a sleeve 93 is fixedly connected inside the limiting frame 92. A threaded block 94 is threadedly connected to the bottom end of the threaded hole 91. When the threaded block 94 rotates, it can perform linear motion in the up and down directions inside the threaded hole 91. The bottom surface of the threaded block 94 is fixedly connected to the upper end of the elastic member 7. When the threaded block 94 moves upward, the elastic member 7 in a compressed state can be released. The bottom surface of the threaded block 94 is connected to the fixing plate 6. The bottom surfaces are located in the same horizontal plane, and the upper surface of the threaded block 94 is fixedly connected with a connecting rod 95, and the connecting rod 95 is inserted into the interior of the sleeve 93. The sleeve 93 can guide and limit the movement of the connecting rod 95 to prevent the connecting rod 95 from being offset during the movement and causing the threaded block 94 to be stuck in the threaded hole 91. The upper end of the connecting rod 95 is fixedly connected with a circular plate 96, and the bottom surface of the circular plate 96 and the upper surface of the sleeve 93 fit each other. The staff can drive the connecting rod 95 and the threaded block 94 to rotate quickly through the circular plate 96. In the initial state, the bottom surface of the circular plate 96 and the upper surface of the sleeve 93 fit each other, thereby limiting the threaded block 94 to prevent it from being separated from the threaded hole 91 and making it difficult to reset.

[0034] When the electric push rod 4 is started, the cooperation between the fixed plate 6 and the elastic member 7 can drive the upper mold 5 to move downward to perform compression molding on the raw material placed in the lower mold 2. After the upper mold 5 enters the lower mold 2, the elastic potential energy of the elastic member 7 gradually increases the extrusion force of the upper mold 5 on the glass fiber reinforced plastic product, preventing the upper mold 5 from directly and hard extruding the glass fiber reinforced plastic product. When the bottom surface of the limit block 8 and the upper surface of the upper mold 5 are in contact with each other, it indicates that the elastic member 7 has reached the compression limit. At this time, the electric push rod 4 can be stopped, so that the upper mold 5 and the fixed plate 6 remain in place. At this time, the circular plate 96 can be unscrewed to drive the threaded block 94 to move upward, release the extrusion of the elastic member 7, and allow the elastic member 7 to rebound and reset, thereby avoiding the elastic potential energy of the elastic member 7 acting on the fixed plate 6 for a long time, causing the load of the electric push rod 4 to increase, thereby affecting the service life of the electric push rod 4 and the elastic member 7 and the use effect of the molding equipment.

[0035] Reference Figure 4A guide rod 10 is fixedly connected to the upper surface of the lower mold 2, and a guide groove 11 is provided on the bottom surfaces of the fixed plate 6 and the upper mold 5. The guide rod 10 is sleeved inside the guide groove 11, and a support ball 12 is fixedly connected to the inner wall surface of the guide groove 11. The outer wall of the support ball 12 fits the outer wall of the guide rod 10. Through the cooperation of the set support ball 12 and the guide rod 10, the movement of the fixed plate 6 and the upper mold 5 can be guided and limited, so that the upper mold 5 can accurately and stably enter the lower mold 2 for molding. At the same time, the spherical structure of the support ball 12 can reduce the contact area with the guide rod 10, thereby reducing the resistance to the movement of the fixed plate 6 and the upper mold 5, making the molding of the raw material smoother.

[0036] Working principle: After placing the raw material into the lower mold 2, start the electric push rod 4 to drive the upper mold 5 to move downward and enter the lower mold 2 to perform compression molding on the raw material. When the upper mold 5 enters the lower mold 2, the elastic potential energy of the elastic part 7 can gradually increase the extrusion pressure of the upper mold 5 on the fiberglass product to prevent the upper mold 5 from directly extruding the fiberglass product. When the elastic part 7 reaches the compression limit, the bottom surface of the limit block 8 will fit with the upper surface of the upper mold 5 to protect the elastic part 7. Then the circular plate 96 can be rotated to drive the threaded block 94 to move upward to release the extrusion of the elastic part 7 and avoid the elastic part 7 being in a compressed state for a long time, which causes the load of the electric push rod 4 to increase, thereby affecting the service life and effect of the equipment.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A molding device for glass fiber reinforced plastic products, comprising a molding table (1), characterized in that: A lower mold (2) is fixedly connected at the center of the upper surface of the molding platform (1), a fixing frame (3) is fixedly connected to the upper surface of the molding platform (1), an electric push rod (4) is fixedly connected to the internal top surface of the fixing frame (3), an upper mold (5) is arranged below the electric push rod (4), a fixing plate (6) is arranged above the upper mold (5), an elastic member (7) is arranged on the bottom surface of the fixing plate (6), a limiting block (8) is fixedly connected at the center of the bottom surface of the fixing plate (6), a fixing cylinder (9) is fixedly connected to the upper surface of the fixing plate (6), a limiting unit is arranged inside the fixing cylinder (9), and the limiting unit is used to limit the elastic member (7).

2. The molding equipment for glass fiber reinforced plastic products according to claim 1, characterized in that: A guide rod (10) is fixedly connected to the upper surface of the lower mold (2), a guide groove (11) is provided on the bottom surface of the fixing plate (6) and the upper mold (5), and a support ball (12) is fixedly connected to the inner wall surface of the guide groove (11).

3. The molding equipment for glass fiber reinforced plastic products according to claim 1, characterized in that: The limiting unit comprises a threaded hole (91), the threaded hole (91) being formed inside the fixing cylinder (9), the bottom end of the threaded hole (91) passing through the fixing plate (6), the upper end of the fixing cylinder (9) being fixedly connected to a limiting frame (92), the inside of the limiting frame (92) being fixedly connected to a sleeve (93), the bottom end of the threaded hole (91) being threadedly connected to a threaded block (94), the upper surface of the threaded block (94) being fixedly connected to a connecting rod (95), and the upper end of the connecting rod (95) being fixedly connected to a circular plate (96).

4. The molding equipment for glass fiber reinforced plastic products according to claim 1, characterized in that: The bottom end of the elastic member (7) is fixedly connected to the upper surface of the upper mold (5).

5. The molding equipment for glass fiber reinforced plastic products according to claim 2, characterized in that: The guide rod (10) is sleeved inside the guide groove (11), and the outer wall of the support ball (12) fits the outer wall of the guide rod (10) to each other.

6. The molding equipment for glass fiber reinforced plastic products according to claim 3, characterized in that: The connecting rod (95) is inserted into the interior of the sleeve (93), and the bottom surface of the circular plate (96) and the upper surface of the sleeve (93) are in contact with each other.

7. The molding equipment for glass fiber reinforced plastic products according to claim 3, characterized in that: The bottom surface of the threaded block (94) is fixedly connected to the upper end of the elastic member (7).

8. The molding equipment for glass fiber reinforced plastic products according to claim 3, characterized in that: The bottom surface of the threaded block (94) and the bottom surface of the fixing plate (6) are located on the same horizontal plane.

Images