A fiberglass cylinder demolding aid structure

Abstract

This utility model discloses an auxiliary structure for demolding fiberglass cylinders, relating to the technical field of fiberglass production equipment. It includes a base body, a support seat fixedly connected to one side of the upper surface of the base body, a lower mold fixedly connected to the top of the support seat, and an upper mold fixedly connected to the top of the lower mold. The lower mold and the upper mold together form a cylinder mold, and a mandrel is horizontally arranged inside the cylinder mold. A movable component is provided on the side of the upper surface of the base body away from the support seat. One end of the mandrel is connected to the movable component via a locking component. An auxiliary demolding component is provided on the outer side of the lower mold and the upper mold. This utility model, by designing the auxiliary demolding component, allows the air pump to be started and the control valve to be opened after the fiberglass cylinder has solidified in the mold, causing the annular airbag to inflate. The gas enters the gap between the mold and the cylinder through the air holes, effectively reducing the adhesion and friction between them, and significantly improving the demolding effect.

Description

Technical Field

[0001] This utility model relates to the technical field of fiberglass production equipment, specifically a fiberglass cylinder demolding auxiliary structure. Background Technology

[0002] Fiberglass cylinders are made using unsaturated resins as the matrix material and inorganic non-metallic particles such as quartz sand and calcium carbonate as fillers. They are manufactured using methods such as fixed-length winding, centrifugal casting, and continuous winding. Fiberglass cylinders offer numerous advantages, including being lightweight yet hard, non-conductive, having stable performance, high mechanical strength, and a long service life. They are widely used in petroleum, power, chemical, papermaking, urban water supply and drainage, factory wastewater treatment, seawater desalination, and gas transmission. The general production process for fiberglass cylinders involves preparing the core mold, winding, curing, demolding, and inspection, culminating in the finished fiberglass cylinder. Demolding is a crucial step, affecting both production efficiency and product quality.

[0003] Traditional methods for demolding fiberglass cylinders typically involve manual demolding or simple mechanical demolding. Manual demolding is labor-intensive, inefficient, and prone to damaging the cylinder surface, affecting product quality. Simple mechanical demolding, such as using an ejector mechanism to directly eject the cylinder, suffers from poor demolding results due to the strong adhesion and friction between the cylinder and the mold, also easily leading to cylinder deformation, surface scratches, and other problems, increasing production costs and reducing efficiency. Therefore, this paper proposes a demolding auxiliary structure for fiberglass cylinders. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary structure for demolding fiberglass cylinders to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fiberglass cylinder demolding auxiliary structure includes a base body. A support seat is fixedly connected to one side of the upper surface of the base body. A lower mold is fixedly connected to the top of the support seat. An upper mold is fixedly connected to the top of the lower mold. The lower mold and the upper mold together form a cylinder mold. A mandrel is horizontally arranged inside the cylinder mold. A movable component is provided on the side of the upper surface of the base body away from the support seat. One end of the mandrel is connected to the movable component through a locking component. An auxiliary demolding component is provided on the outer side of the lower mold and the upper mold. The auxiliary demolding component includes an annular airbag fixedly sleeved on the outer side of the lower mold and the upper mold. Several annular airbags are provided and evenly distributed on the outer side of the lower mold and the upper mold. An air supply pipe is fixedly connected to the outer side of the annular airbag. An air pump is fixedly connected to the other end of the air supply pipe. The air pump is fixedly arranged on the upper surface of the base body. Several equidistant air outlets are opened on the inner side of the annular airbag. Through holes matching the air outlets are opened on the outer side of the lower mold and the upper mold.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0008] In one alternative: the moving component includes a movable seat that is slidably disposed on the upper surface of the base body, a fixed seat that is fixedly connected to the top of the movable seat, a cylinder that is fixedly installed on one side of the fixed seat, and the telescopic end of the cylinder is connected to one end of the spindle through the engaging component.

[0009] In one alternative: a motor is fixedly installed on one side of the movable base, a gear is fixedly connected to the output end of the motor, a rack is meshed at the lower end of the gear, and the rack is fixedly installed on the upper surface of the base body.

[0010] In one alternative: a guide groove is provided on the upper surface of the base body, and a guide wheel matching the guide groove is installed at the bottom of the movable seat.

[0011] In one alternative embodiment: the engaging assembly includes a connecting seat fixedly connected to one end of the spindle, a slot is provided on one side of the connecting seat, a fixing block is inserted into the slot, the side of the fixing block away from the slot is fixedly connected to the telescopic end of the cylinder, a limiting hole is provided on the outer side of the fixing block, a through groove matching the limiting hole is provided on the outer side of the connecting seat, and a fixing sleeve is fixedly connected to the outer side of the through groove, a limiting rod matching the limiting hole is provided longitudinally inside the fixing sleeve, a fixing ring is fixedly sleeved on the outer wall of the limiting rod, a spring is fixedly connected between one side of the fixing ring and the top of the inner cavity of the fixing sleeve, the spring is movably sleeved on the outer wall of the limiting rod, and the end of the limiting rod away from the limiting hole extends through to the outside of the fixing sleeve and is fixedly connected to a pull handle.

[0012] In one alternative: the annular airbag is made of a high-temperature resistant and wear-resistant rubber material.

[0013] In one alternative: the gas pipeline is equipped with a control valve for controlling the gas flow.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model designs an auxiliary demolding component. After the fiberglass cylinder is cured and formed in the mold, the air pump is started and the control valve is opened to inflate the annular airbag. The gas enters the gap between the mold and the cylinder through the air hole, which effectively reduces the adsorption force and friction between the two and significantly improves the demolding effect.

[0016] 2. This utility model, through the design of a locking assembly, allows the operator to pull the handle to disengage the limiting rod from the limiting hole of the fixing block, thereby releasing the cylinder extension end from the mandrel and separating the two. During this process, the limiting rod drives the fixing ring to compress the spring and store energy. Before re-inserting the fixing block, the above operation is repeated. After insertion, the handle is released, and the spring potential energy pushes the limiting rod back into the limiting hole, completing the fixation of the two. The operation is simple and significantly improves the efficiency of disassembly and assembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural diagram of the engaging component of this utility model;

[0019] Figure 3 This is a partial structural diagram of the auxiliary demolding component of this utility model;

[0020] Figure 4 This is a schematic diagram of the annular airbag structure of this utility model.

[0021] Figure reference numerals: 100, base body; 200, locking assembly; 300, auxiliary demolding assembly;

[0022] 110. Support base; 120. Lower mold; 130. Upper mold; 140. Mandrel; 150. Cylinder; 160. Moving base; 170. Fixed base; 180. Motor; 190. Gear; 1910. Rack; 1920. Guide groove;

[0023] 210. Connecting seat; 220. Slot; 230. Fixing block; 240. Limiting hole; 250. Fixing sleeve; 260. Limiting rod; 270. Fixing ring; 280. Spring; 290. Pull handle;

[0024] 310. Annular airbag; 320. Air supply pipe; 330. Air pump; 340. Air outlet; 350. Through hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] In one embodiment, such as Figures 1-4 As shown, a fiberglass cylinder demolding auxiliary structure includes a base body 100, a support seat 110 fixedly connected to one side of the upper surface of the base body 100, a lower mold 120 fixedly connected to the top of the support seat 110, and an upper mold 130 fixedly connected to the top of the lower mold 120. The lower mold 120 and the upper mold 130 together form a cylinder mold, and a mandrel 140 is provided laterally inside the cylinder mold. A movable component is provided on the side of the upper surface of the base body 100 away from the support seat 110. One end of the mandrel 140 is connected to the movable component through a locking component 200. An auxiliary demolding component 3 is provided on the outer side of the lower mold 120 and the upper mold 130. 00, the auxiliary demolding component 300 includes an annular airbag 310 fixedly sleeved on the outside of the lower mold 120 and the upper mold 130. Several annular airbags 310 are provided and evenly distributed on the outside of the lower mold 120 and the upper mold 130. An air supply pipe 320 is fixedly connected to the outside of the annular airbag 310. An air pump 330 is fixedly connected to the other end of the air supply pipe 320. The air pump 330 is fixedly set on the upper surface of the base body 100. Several equidistant air outlets 340 are opened on the inner side of the annular airbag 310. Through holes 350 matching the air outlets 340 are opened on the outer side of the lower mold 120 and the upper mold 130.

[0027] In this embodiment, after the fiberglass cylinder is cured and formed in the cylinder mold, the air pump 330 is started and the control valve is opened to inflate the annular airbag 310. The annular airbag 310 expands and the gas enters the gap between the mold and the cylinder through the air outlet 340, reducing the adsorption force and friction between the two and further improving the demolding effect.

[0028] In one embodiment, such as Figure 1As shown, the moving assembly includes a movable seat 160 slidably disposed on the upper surface of the base body 100. A fixed seat 170 is fixedly connected to the top of the movable seat 160. A cylinder 150 is fixedly installed on one side of the fixed seat 170, and the telescopic end of the cylinder 150 is connected to one end of the spindle 140 via a locking assembly 200. A motor 180 is fixedly installed on one side of the movable seat 160. A gear 190 is fixedly connected to the output end of the motor 180. A rack 1910 meshes with the lower end of the gear 190. The rack 1910 is fixedly installed on the upper surface of the base body 100. A guide groove 1920 is provided on the upper surface of the base body 100. A guide wheel matching the guide groove 1920 is installed at the bottom of the movable seat 160. By activating the cylinder 150, the spindle 140 is pulled. The start-up of cylinder 150 is smooth and slow, preventing sudden force application that could damage the fiberglass cylinder. After cylinder 150 loosens the spindle 140, motor 180 is started. The output of motor 180 drives gear 190 to rotate. With the cooperation of rack 1910, it drives moving seat 160 and fixed seat 170 to move to one side simultaneously, thereby enabling cylinder 150 and spindle 140 to be removed from the cylinder mold. This avoids the drawback of requiring excessively long stroke of cylinder 150, which would increase costs. It is worth noting that during the pulling process of cylinder 150, moving seat 160 is fixed to the base body 100 with bolts, ensuring stability during the pulling process. This device has a simple structure, is easy to operate, has a good demolding effect, and improves the demolding efficiency of fiberglass cylinders.

[0029] In one embodiment, such as Figure 1 and Figure 2As shown, the engaging assembly 200 includes a connecting seat 210 fixedly connected to one end of the spindle 140. A slot 220 is provided on one side of the connecting seat 210, and a fixing block 230 is inserted into the slot 220. The side of the fixing block 230 away from the slot 220 is fixedly connected to the telescopic end of the cylinder 150. A limiting hole 240 is provided on the outer side of the fixing block 230. A through groove matching the limiting hole 240 is provided on the outer side of the connecting seat 210, and a fixing sleeve 250 is fixedly connected to the outer side of the through groove. A limiting rod 260 matching the limiting hole 240 is provided longitudinally inside the fixing sleeve 250. A fixing ring 270 is fixedly sleeved on the outer wall of the limiting rod 260. A spring 280 is fixedly connected between one side of the fixing ring 270 and the top of the inner cavity of the fixing sleeve 250. The spring 280 is movably sleeved on the outer wall of the limiting rod 260. The end of the limiting rod 260 away from the limiting hole 240 extends through to the fixing sleeve. A pull handle 290 is fixedly connected to the outside of cylinder 150. The operator can pull the pull handle 290 to drive the limiting rod 260 to disengage from the limiting hole 240 on the fixing block 230, thereby releasing the fixation between the telescopic end of cylinder 150 and spindle 140. During this process, the limiting rod 260 will drive the fixing ring 270 to compress the spring 280, so that the spring 280 has elastic potential energy. Before re-inserting the fixing block 230, the above operation is repeated. After the fixing block 230 is re-inserted into the slot 220 on the connecting seat 210, the pull handle 290 is released. The limiting rod 260 is pushed back into the limiting hole 240 on the fixing block 230 under the push of the potential energy of the spring 280, thereby completing the fixation between the telescopic end of cylinder 150 and spindle 140. The operation is convenient and quick, greatly improving the disassembly and assembly efficiency between spindle 140 and telescopic end of cylinder 150.

[0030] In one embodiment, such as Figure 3 As shown, the annular airbag 310 is made of high-temperature resistant and wear-resistant rubber material, and the gas supply pipe 320 is equipped with a control valve for controlling the gas flow. The annular airbag 310 is made of high-temperature resistant and wear-resistant rubber material to adapt to the high-temperature environment in the fiberglass production process and to ensure that it is not easily damaged after repeated use. The control valve on the gas supply pipe 320 can easily control the gas flow, making it convenient for operators to flexibly adjust the demolding process according to the actual situation. The operation is simple and convenient.

[0031] The above embodiment discloses a demolding auxiliary structure for fiberglass cylinders. After the fiberglass cylinder has solidified in the cylinder mold, the air pump 330 is started and the control valve is opened to inflate the annular airbag 310. The annular airbag 310 expands, and the gas enters the gap between the mold and the cylinder through the air outlet 340, reducing the adsorption force and friction between the two, and further improving the demolding effect. Subsequently, in conjunction with the cylinder 150 and the moving component, the mandrel 140 is removed from the cylinder mold, thereby completing the demolding operation.

[0032] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A fiberglass cylinder demolding auxiliary structure, comprising a base body (100), a support seat (110) fixedly connected to one side of the upper surface of the base body (100), a lower mold (120) fixedly connected to the top of the support seat (110), an upper mold (130) fixedly connected to the top of the lower mold (120), the lower mold (120) and the upper mold (130) together forming a cylinder mold, and a mandrel (140) is provided transversely inside the cylinder mold, characterized in that, A movable component is provided on the upper surface of the base body (100) away from the support base (110). One end of the mandrel (140) is connected to the movable component via a locking component (200). An auxiliary demolding component (300) is provided on the outer side of the lower mold (120) and the upper mold (130). The auxiliary demolding component (300) includes an annular airbag (310) fixedly sleeved on the outer side of the lower mold (120) and the upper mold (130). Several annular airbags (310) are provided and are evenly distributed on the lower mold. On the outer side of the upper mold (120) and the upper mold (130), the outer side of the annular airbag (310) is fixedly connected to an air supply pipe (320), and the other end of the air supply pipe (320) is fixedly connected to an air pump (330). The air pump (330) is fixedly installed on the upper surface of the base body (100). The inner side of the annular airbag (310) is provided with several equidistantly distributed air outlets (340). The outer sides of the lower mold (120) and the upper mold (130) are provided with through holes (350) that match the air outlets (340).

2. The fiberglass cylinder demolding auxiliary structure according to claim 1, characterized in that, The moving component includes a movable seat (160) slidably disposed on the upper surface of the base body (100), a fixed seat (170) fixedly connected to the top of the movable seat (160), a cylinder (150) fixedly installed on one side of the fixed seat (170), and the telescopic end of the cylinder (150) is connected to one end of the spindle (140) through the engaging component (200).

3. The fiberglass cylinder demolding auxiliary structure according to claim 2, characterized in that, A motor (180) is fixedly installed on one side of the movable base (160). A gear (190) is fixedly connected to the output end of the motor (180). A rack (1910) meshes with the lower end of the gear (190). The rack (1910) is fixedly installed on the upper surface of the base body (100).

4. The fiberglass cylinder demolding auxiliary structure according to claim 2, characterized in that, The upper surface of the base body (100) is provided with a guide groove (1920), and the bottom of the movable seat (160) is equipped with a guide wheel that matches the guide groove (1920).

5. The fiberglass cylinder demolding auxiliary structure according to claim 2, characterized in that, The engaging assembly (200) includes a connecting seat (210) fixedly connected to one end of the spindle (140). A slot (220) is provided on one side of the connecting seat (210), and a fixing block (230) is inserted into the slot (220). The side of the fixing block (230) away from the slot (220) is fixedly connected to the telescopic end of the cylinder (150). A limiting hole (240) is provided on the outer side of the fixing block (230). A through groove matching the limiting hole (240) is provided on the outer side of the connecting seat (210), and a fixing sleeve is fixedly connected to the outer side of each through groove. The sleeve (250) has a longitudinally arranged limiting rod (260) that matches the limiting hole (240). A fixing ring (270) is fixedly sleeved on the outer wall of the limiting rod (260). A spring (280) is fixedly connected between one side of the fixing ring (270) and the top of the inner cavity of the fixed sleeve (250). The spring (280) is movably sleeved on the outer wall of the limiting rod (260). One end of the limiting rod (260) away from the limiting hole (240) extends through to the outside of the fixed sleeve (250) and is fixedly connected to a pull handle (290).

6. The fiberglass cylinder demolding auxiliary structure according to claim 1, characterized in that, The annular airbag (310) is made of high-temperature resistant and wear-resistant rubber material.

7. The fiberglass cylinder demolding auxiliary structure according to claim 1, characterized in that, The gas pipeline (320) is equipped with a control valve for controlling the gas flow.

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