Hydraulic drive for automatic opening and closing of mould and ejection of product

Abstract

The utility model relates to the technical field of automobile parts production, disclose hydraulic drive device of vulcanizing machine automatic mold opening and product ejection, include: roof, roof is rectangular board, roof is installed on vulcanizing machine, the bottom of roof is provided with base, the top of base is provided with lower mould, the top of lower mould is provided with upper mould, automatic structure, automatic structure includes: cylinder body, link frame, pull frame, fixed axle and rotating sleeve, cylinder body fixed connection is in the bottom of roof, link frame fixed connection is in the bottom of cylinder body, upper mould fixed connection is in the bottom of link frame, pull frame symmetry fixed connection is in the both sides of the bottom of link frame, fixed axle fixed connection is in the top of base front wall surface, rotating sleeve fixed connection is in the lower mould front wall surface, lower mould can and upper mould align and adhere, automatic structure utilizes the cylinder body to drive lower mould to lift when contracting, thereby realizing automatic opening and closing can also achieve the tire automatic separation unloading of lower mould top forming.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts manufacturing, specifically, it relates to a hydraulic drive device for automatic mold opening and closing and product ejection in a vulcanizing machine. Background Technology

[0002] A vulcanizing machine is an industrial device used for the "vulcanization" process of polymer materials such as rubber and plastics. Its core function is to cause unvulcanized rubber to undergo a chemical cross-linking reaction by heating, pressurizing and maintaining it for a certain time, thereby forming a finished product with stable physical properties. It is widely used in fields such as automobile tire manufacturing.

[0003] Traditional vulcanizing machines use a cylinder to drive the upper mold downwards at high temperature, pressing the upper and lower molds together to form the blank. However, after the blank is formed, the tire needs to be manually removed from between the molds. This process can cause injury to workers due to the high temperature, and if the upper mold falls while the tire is being removed, it can cause serious injury to the workers. Therefore, a hydraulic drive device that can automatically open and close the mold and automatically eject the finished product is needed.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: The hydraulic drive device for automatic mold opening and closing and product ejection in a vulcanizing machine includes: The top frame is a rectangular plate. The top frame is installed on the vulcanizing machine. A base is set below the top frame, a lower mold is set above the base, and an upper mold is set above the lower mold. The automatic structure, located at the bottom of the top frame, controls the upper and lower molds. The automatic structure includes a cylinder, connecting frame, pull frame, fixed shaft, and rotating sleeve. The cylinder is fixedly connected to the bottom of the top frame, the connecting frame is fixedly connected to the bottom of the cylinder, the upper mold is fixedly connected to the bottom of the connecting frame, the pull frames are symmetrically fixedly connected to both sides of the bottom of the connecting frame, the fixed shaft is fixedly connected to the top of the front wall of the base, and the rotating sleeve is fixedly connected to the front wall of the lower mold. The lower mold can be aligned and fitted with the upper mold.

[0006] In a preferred embodiment of this utility model, the bottom telescopic end of the cylinder body is connected to the top of the connecting frame, the fixed shaft is a U-shaped rod with the opening facing downward, the middle section of the fixed shaft is cylindrical, the rotating sleeve is a rod with a semi-capsule-shaped cross section, and the rotating sleeve can be inserted into the cylindrical part of the fixed shaft.

[0007] In a preferred embodiment of this utility model, the pull frame is a rectangular frame with a hollow cavity, and the cavity of the pull frame is a right-angled trapezoid with the inclined surface facing downwards. The lower mold is located between the symmetrical pull frames.

[0008] In a preferred embodiment of the present invention, the automatic structure further includes a support block and rollers. The support block is fixedly connected to the bottom of the rear wall of the lower mold, and the rollers are inserted into the rear side wall of the lower mold. The bottom of the support block can contact the top of the base.

[0009] In a preferred embodiment of this utility model, the roller is cylindrical, and cylindrical rollers are fixedly connected to both sides of the roller. The rollers on each side of the roller can roll along the inner wall of the pull frame cavity, and the inner height of the pull frame cavity is greater than the diameter of the rollers on the roller wall.

[0010] In a preferred embodiment of the present invention, the bottom of the top frame is symmetrically fixedly connected with a rear limiting edge, and the bottom sides of the top frame are also symmetrically fixedly connected with front limiting edges. The symmetrical front limiting edges are located in front of the symmetrical rear limiting edges, and the positions of the front and rear limiting edges on each side are symmetrical to each other.

[0011] In a preferred embodiment of this utility model, the rear limit side and the front limit side are L-shaped cross-section rods with the same dimensions. The inner corners of the front limit side and the rear limit side walls on each side can be engaged with the outer edge of the pull frame.

[0012] Compared with the prior art, the present invention has the following advantages: 1. By setting up an automatic structure, the lower mold is lifted when the cylinder contracts, thereby achieving automatic opening and closing while also automatically separating and unloading the tire formed on the top of the lower mold, thus effectively reducing the incidence of injury to workers.

[0013] 2. By setting rear and front limit edges, the displacement of the pull frame can be restricted, thereby indirectly preventing misalignment of the upper and lower molds during mold closing, thus effectively improving the quality of tire molding and reducing the probability of defective products.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the cylinder block operation of this utility model; Figure 3 This is a disassembly diagram of the lower mold wall structure of this utility model; Figure 4 This is a schematic diagram of the connection between the upper and lower molds of this utility model; Figure 5 This is a schematic diagram showing the position of the pull frame of this utility model.

[0016] In the diagram: 20. Top frame; 21. Rear limit edge; 22. Front limit edge; 23. Base; 24. Fixed shaft; 25. Rotary sleeve; 26. Lower mold; 27. Support block; 28. Roller; 30. Cylinder body; 31. Connecting frame; 32. Upper mold; 33. Pull frame. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the hydraulic drive device for automatic mold opening and closing and product ejection of the vulcanizing machine includes: a top frame 20, which is a rectangular plate and is mounted on the vulcanizing machine. A base 23 is provided below the top frame 20, a lower mold 26 is provided above the base 23, and an upper mold 32 is provided above the lower mold 26. The power supply and control console of the vulcanizing machine can control the cylinder 30 to extend and retract. The heating power supplies of the lower mold 26 and the upper mold 32 are connected to the power supply of the vulcanizing machine and controlled by the control console of the vulcanizing machine. This is existing technology and will not be described in detail here.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the automatic structure is located at the bottom of the top frame 20 to control the upper mold 32 and the lower mold 26. The automatic structure includes: cylinder 30, connecting frame 31, pull frame 33, fixed shaft 24 and rotating sleeve 25. The cylinder 30 is fixedly connected to the bottom of the top frame 20, the connecting frame 31 is fixedly connected to the bottom of the cylinder 30, the upper mold 32 is fixedly connected to the bottom of the connecting frame 31, the pull frame 33 is symmetrically fixedly connected to both sides of the bottom of the connecting frame 31, the fixed shaft 24 is fixedly connected to the top of the front wall of the base 23, and the rotating sleeve 25 is fixedly connected to the front wall of the lower mold 26. The lower mold 26 can be aligned and fitted with the upper mold 32.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the bottom telescopic end of the cylinder body 30 is connected to the top of the connecting frame 31. The fixed shaft 24 is a U-shaped rod with the opening facing downwards. The middle section of the fixed shaft 24 is cylindrical. The rotating sleeve 25 is a rod with a semi-capsule-shaped cross section. The rotating sleeve 25 can be inserted into the cylindrical part of the fixed shaft 24. The pull frame 33 is a rectangular frame with a hollow cavity. The internal shape of the pull frame 33 is a right trapezoid with the inclined plane facing downwards. The lower mold 26 is located between the symmetrical pull frames 33. The automatic structure also includes support blocks. 27 and roller 28, support block 27 is fixedly connected to the bottom of the rear wall of the lower mold 26, roller 28 is inserted into the rear side wall of the lower mold 26, the bottom of support block 27 can contact the top of base 23, roller 28 is cylindrical, and cylindrical rollers are fixedly connected to both sides of roller 28. The rollers on each side of roller 28 can roll along the inner wall of the pull frame 33. The inner height of the pull frame 33 is greater than the diameter of the rollers on the wall of roller 28. In practical use, first, control the retraction of the cylinder body 30's telescopic end. During this retraction, the cylinder body 30 will drive the connecting frame 31 to move upwards synchronously. The connecting frame 31 will then drive the upper mold 32 and the pull frame 33 to move synchronously. The retraction of the cylinder body 30 can be stopped when the rollers of the roller 28 are positioned in the middle of the pull frame 33's cavity as it moves upwards. At this point, there will be a gap between the tops of the upper mold 32 and the lower mold 26. Then, place the blank on top of the lower mold 26. Next, control the cylinder body 30 to extend downwards again and control the heating of the lower mold 26 and the upper mold 32. As the upper mold 32 presses down and heats, the blank between the upper mold 32 and the lower mold 26 is formed into a tire. After the tire is formed, control the cylinder body 30 to fully retract. As the cylinder body 30 fully retracts, it will drive the connecting frame 31, the upper mold 32, and the pull frame 33 to move upwards synchronously. As the pull frame 33 moves, the roller arc surface of the roller 28 will gradually contact the bottom arc surface inside the cavity of the pull frame 33. At this time, the pull frame 33 will drive the roller 28 to move upward synchronously as it moves upward. The roller 28 will drive the lower mold 26 to lift and flip forward around the rotating sleeve 25. As the lower mold 26 gradually flips, it will drive the roller 28 and roller to move from the back to the front along the bottom arc surface inside the cavity of the pull frame 33. As the lower mold 26 flips, the tire formed on the top of the lower mold 26 will automatically slide off the wall of the lower mold 26. After the tire slides off, the tire can be retracted. The cylinder 30 is controlled to extend downward to drive the lower mold 26 back to the flat position. At this time, the lower mold 26 will drive the bottom of the support block 27 to contact the top of the base 23. Then the next blank can be formed and produced. This process is repeated. In summary, by setting up an automatic structure that uses the retraction of the cylinder 30 to lift the lower mold 26, automatic opening and closing can be achieved, and the tire formed on the top of the lower mold 26 can be automatically separated and unloaded, thereby effectively reducing the incidence of injury to workers.

[0021] like Figure 5As shown, the bottom of the top frame 20 is symmetrically fixedly connected with a rear limiting edge 21, and the bottom sides of the top frame 20 are also symmetrically fixedly connected with front limiting edges 22. The symmetrical front limiting edges 22 are located in front of the symmetrical rear limiting edges 21. The positions of the front limiting edges 22 and the rear limiting edges 21 on each side are symmetrical. The rear limiting edges 21 and the front limiting edges 22 are L-shaped cross-section rods. The dimensions of the rear limiting edges 21 and the front limiting edges 22 are the same. The inner corners of the walls of the front limiting edges 22 and the rear limiting edges 21 on each side can be engaged with the outer edge of the pull frame 33. In actual use, when the cylinder body 30 retracts, it will drive the connecting frame 31, the upper mold 32 and the pull frame 33 to move synchronously. When the pull frame 33 moves, its outer front and rear edges will always be located in the inner corner of the rear limit edge 21 and the front limit edge 22. In summary, by setting the rear limit edge 21 and the front limit edge 22, the displacement of the pull frame 33 can be restricted, thereby indirectly preventing the upper mold 32 and the lower mold 26 from misaligning during mold closing, thus effectively improving the quality of tire molding and reducing the probability of defective products.

[0022] Working principle: First, the cylinder 30 retracts to its telescopic end. During this retraction, the cylinder 30 drives the connecting frame 31 to move upwards synchronously. The connecting frame 31 then drives the upper mold 32 and the pull frame 33 to move synchronously. The cylinder 30 stops retracting when the rollers of the roller 28 are positioned in the middle of the pull frame 33 cavity as it moves upwards. At this point, there is a gap between the tops of the upper mold 32 and the lower mold 26. The blank is then placed on top of the lower mold 26. The cylinder 30 is then retracted downwards, and the lower mold 26 and the upper mold 32 are heated. As the upper mold 32 presses down and heats, the blank between the upper mold 32 and the lower mold 26 is formed into a tire. After the tire is formed, the cylinder 30 is fully retracted. As the cylinder 30 retracts completely, it causes the connecting frame 31, the upper mold 32, and the pull frame 33 to move upwards synchronously. As the pull frame 33 moves, the roller arc surface of the roller 28 gradually contacts the bottom arc surface inside the cavity of the pull frame 33. At this time, the pull frame 33 will drive the roller 28 to move upwards synchronously as it moves upwards. The roller 28 will drive the lower mold 26 to lift and flip forward around the rotating sleeve 25. As the lower mold 26 gradually flips, it will drive the roller 28 and roller to move from the original rear to the front along the bottom arc surface inside the cavity of the pull frame 33. As the lower mold 26 flips, the tire formed on the top of the lower mold 26 will automatically slide off the wall of the lower mold 26. After the tire slides off, the tire can be retracted.

[0023] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A hydraulic drive device for automatic mold opening and closing and product ejection in a vulcanizing machine, characterized in that, include: Top frame (20), top frame (20) is a rectangular plate, top frame (20) is installed on vulcanizing machine, base (23) is provided below top frame (20), lower mold (26) is provided above base (23), upper mold (32) is provided above lower mold (26). An automatic structure is set at the bottom of the top frame (20) to control the upper mold (32) and the lower mold (26). The automatic structure includes: cylinder (30), connecting frame (31), pull frame (33), fixed shaft (24) and rotating sleeve (25). The cylinder (30) is fixedly connected to the bottom of the top frame (20), the connecting frame (31) is fixedly connected to the bottom of the cylinder (30), the upper mold (32) is fixedly connected to the bottom of the connecting frame (31), the pull frame (33) is symmetrically fixedly connected to the bottom sides of the connecting frame (31), the fixed shaft (24) is fixedly connected to the top of the front wall of the base (23), and the rotating sleeve (25) is fixedly connected to the front wall of the lower mold (26). The lower mold (26) can be aligned and fitted with the upper mold (32).

2. The hydraulic drive device for automatic mold opening and closing and product ejection in a vulcanizing machine according to claim 1, characterized in that, The bottom telescopic end of the cylinder (30) is connected to the top of the connecting frame (31). The fixed shaft (24) is a U-shaped rod with the opening facing downward. The middle section of the fixed shaft (24) is cylindrical. The rotating sleeve (25) is a rod with a semi-capsule-shaped cross section. The rotating sleeve (25) can be inserted into the cylindrical part of the fixed shaft (24).

3. The hydraulic drive device for automatic mold opening and closing and product ejection in a vulcanizing machine according to claim 1, characterized in that, The pull frame (33) is a rectangular frame with a hollow cavity. The cavity shape of the pull frame (33) is a right trapezoid with the inclined surface facing down. The lower mold (26) is located between the symmetrical pull frames (33).

4. The hydraulic drive device for automatic mold opening and closing and product ejection in a vulcanizing machine according to claim 1, characterized in that, The automatic structure also includes a support block (27) and a roller (28). The support block (27) is fixedly connected to the bottom of the rear wall of the lower mold (26), and the roller (28) is inserted into the rear side wall of the lower mold (26). The bottom of the support block (27) can contact the top of the base (23).

5. The hydraulic drive device for automatic mold opening and closing and product ejection in a vulcanizing machine according to claim 4, characterized in that, The roller (28) is cylindrical, and cylindrical rollers are fixedly connected to both sides of the roller (28). The rollers on each side of the roller (28) can roll along the inner wall of the pull frame (33). The inner height of the pull frame (33) is greater than the diameter of the rollers on the wall of the roller (28).

6. The hydraulic drive device for automatic mold opening and closing and product ejection in a vulcanizing machine according to claim 1, characterized in that, The bottom of the top frame (20) is symmetrically fixedly connected with a rear limiting edge (21), and the bottom sides of the top frame (20) are also symmetrically fixedly connected with front limiting edges (22). The symmetrical front limiting edges (22) are located in front of the symmetrical rear limiting edges (21), and the positions of the front limiting edges (22) and the rear limiting edges (21) on each side are symmetrical to each other.

7. The hydraulic drive device for automatic mold opening and closing and product ejection in a vulcanizing machine according to claim 6, characterized in that, The rear limit edge (21) and the front limit edge (22) are L-shaped cross-section rods. The rear limit edge (21) and the front limit edge (22) have the same size. The inner corners of the walls of the front limit edge (22) and the rear limit edge (21) on each side can be engaged with the outer edge of the pull frame (33).

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