Oil press for manufacturing eyeglasses temples

Abstract

This invention provides a hydraulic press for manufacturing eyeglass temples, including a worktable, a machine body, and a hydraulic cylinder. The worktable is fixed in the middle of the machine body, and a mounting cavity is formed on the worktable. A mounting seat is fixedly connected in the mounting cavity. A connecting rod for contacting the lower end of a power pipe is fixedly connected to the lower end of a hydraulic rod. A push rod is slidably connected in the power pipe, and a fixing block for contacting the inner wall of a sliding hole is fixedly connected to the push rod. A first elastic element is fixedly connected between the fixing block and the power pipe. A sliding hole connected to a power hole is formed on the mounting seat, and the sliding hole is arranged radially along the power hole. A pressure boosting column for contacting the fixing block is slidably connected in the sliding hole. The power pipe moves towards the fixing block, and the pressure boosting column moves away from the fixing block through a transmission component. An air pipe communicating with the power hole is fixedly connected to the mounting seat, and the end of the air pipe away from the power hole faces the lower mold, thereby improving safety.

Description

Technical Field

[0001] This invention relates to hydraulic presses, and more particularly to a hydraulic press for manufacturing eyeglass temples. Background Technology

[0002] Hydraulic presses are essential mechanical equipment for parts processing.

[0003] Currently, Chinese patent CN203994773U discloses a hydraulic press, which includes a machine body, a hydraulic cylinder, a slider, a guide structure, and a worktable. The hydraulic cylinder is installed on the upper side of the machine body and connected to the slider. The guide structure is formed by the cooperation of a guide plate and a guide rail. The guide rail is located on the machine body, and the guide plate is located on the slider. The guide plate and the guide rail are slidably connected, and the inclination angle of their sliding contact surface is set at 45 degrees. The guide rail is located at the four corners of the machine body, and the guide plate is located at the four corners of the slider. An adjusting block is connected to the outside of the guide rail, and the adjusting block is provided with an adjusting screw.

[0004] During operation, the hydraulic cylinder moves up and down, driving the slider and guide plates connected to the four corners of the slider. Guided by the guide rails on both sides, the guide plates achieve high-precision guiding motion. This type of hydraulic press can also be used for manufacturing the temples of eyeglasses.

[0005] The raw material is placed on the lower mold, and the upper mold is fixed on the slider. After the hydraulic cylinder is started, the raw material is squeezed and deformed to form the eyeglass temple. Then, the worker removes the eyeglass temple from the lower mold by hand. The surface of the eyeglass temple will have some burrs and the temperature is high, which poses a certain safety risk. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a hydraulic press for manufacturing eyeglass temples, in which high-speed gas is ejected from the air pipe through mechanical transmission during the upward movement of the hydraulic rod to eject the eyeglass temples from the lower mold, thereby reducing safety risks.

[0007] To solve the above-mentioned technical problems, the technical solution of the present invention is: a hydraulic press for manufacturing eyeglass temples, comprising a worktable, a machine body, and a hydraulic cylinder. The worktable is fixed in the middle of the machine body, and the hydraulic cylinder is fixed in the upper end of the machine body. The hydraulic rod of the hydraulic cylinder is connected to an upper mold, which is located above the worktable. A lower mold corresponding to the upper mold is connected to the worktable. A lower cavity is formed on the upper surface of the lower mold and a lower cavity is formed on the lower surface of the upper mold. The upper cavity and the lower cavity are combined to form a forming cavity for forming eyeglass temples. An installation cavity is formed on the worktable, and an installation seat is fixedly connected in the installation cavity. The installation seat has a power hole, and a vertical mounting device is slidably connected in the power hole. The power pipe is provided, and the lower end of the hydraulic rod is fixedly connected to a connecting rod for abutting against the lower end of the power pipe. A push rod is slidably connected inside the power pipe, and a fixing block is fixedly connected to the push rod for abutting against the inner wall of the sliding hole. A first elastic element is fixedly connected between the fixing block and the power pipe. A sliding hole connected to the power hole is provided on the mounting base. The sliding hole is arranged radially along the power hole. A pressure boosting column for abutting against the fixing block is slidably connected inside the sliding hole. The power pipe moves towards the fixing block and the pressure boosting column moves away from the fixing block through the transmission component. An air pipe communicating with the power hole is fixedly connected to the mounting base. The end of the air pipe away from the power hole faces the lower mold.

[0008] To achieve the above technical solution, the raw material is placed in the lower cavity of the lower mold. The hydraulic cylinder is activated, the hydraulic rod moves downward, and the upper mold presses against the lower mold, forming the temple of the eyeglasses within the forming cavity. Subsequently, the hydraulic rod moves upward, and the upper mold moves upward synchronously with the hydraulic rod. The hydraulic rod drives the connecting rod to move upward, causing the power pipe to move upward along the power hole. Due to the obstruction of the pressure column, the first elastic element is compressed. As the power pipe moves further, the pressure column moves away from the fixed block through the transmission component. At the moment the pressure column separates from the fixed block, due to the elastic force of the first elastic element, the push rod and the fixed block move rapidly along the length of the power hole. The air in the power hole is quickly discharged from the air pipe and blown towards the temple of the eyeglasses, causing the temple of the eyeglasses to fall off the lower mold. This eliminates the need for manual handling, improves safety, and is more economical and environmentally friendly than using an air pump. After the air is quickly discharged from the air pipe, due to gravity, the push rod moves downward and resets, and the fixed block resets simultaneously.

[0009] In a preferred embodiment of the present invention, the transmission assembly includes a guide groove, a guide hole, a guide rod, a second elastic element, a sealing cap, and a guide structure. The guide groove is formed on the surface of the booster column. The guide hole is formed on the mounting base and is parallel to the power hole. The guide rod is slidably connected in the guide hole and one end is fixedly connected to the power pipe, while the other end abuts against the inner wall of the guide groove. The two ends of the second elastic element are fixedly connected to the booster column and the sealing cap, respectively. The sealing cap is fixed at the end of the sliding hole away from the power hole. The booster column is translated along the length direction of the sliding hole through the guide structure.

[0010] To achieve the above technical solution, the power tube drives the guide rod to move along the length of the guide hole, and the end of the guide rod moves along the inner wall of the guide groove, thereby pushing the booster column away from the fixed block, so that the booster column can be separated from the fixed block; when the power tube moves downward due to gravity, the booster column is reset by the elastic force of the second elastic element. The structure is simple and the operation is reliable. The setting of the guide structure makes it difficult for the booster column to deflect significantly during the movement.

[0011] As a preferred embodiment of the present invention, the guiding structure includes a guiding groove and a positioning screw. The guiding groove is formed on the outer wall of the mounting base and communicates with the sliding hole. The length direction of the guiding groove is parallel to the length direction of the sliding hole. The positioning screw is threadedly connected to the side wall of the booster column and is located in the guiding groove.

[0012] To achieve the above technical solution, the positioning screw is threaded onto the side wall of the booster column after passing through the guide groove, so that the positioning screw is located in the guide groove. As the booster column moves along the sliding hole, the positioning screw moves synchronously along the guide groove, thereby making it less likely for the booster column to deflect significantly.

[0013] As a preferred embodiment of the present invention, a reset inclined surface is provided on the side wall of the fixing block, and a conductive inclined block is integrally provided at one end of the pressure boosting column near the fixing block, the conductive inclined block being used to abut against the reset inclined surface.

[0014] To achieve the above technical solution, due to gravity, the push rod and the fixed block move downwards, and the reset inclined surface abuts against the inclined surface on the transmission inclined block, causing the pressure boosting column to move along the sliding hole. At the same time, the fixed block can bypass the pressure boosting column and achieve reset, thereby achieving the effect of automatic reset and greatly improving practicality.

[0015] As a preferred embodiment of the present invention, an annular groove is provided on the outer wall of the fixing block, and a sealing ring is fixedly connected in the annular groove. The sealing ring is used to abut against the inner wall of the power hole.

[0016] To achieve the above technical solution, the sealing ring reduces the gap between the fixed block and the inner wall of the power hole, thereby making it less likely for the fixed block to leak a large amount of air during rapid movement, so that more air can be discharged from the air pipe.

[0017] As a preferred embodiment of the present invention, the end of the power pipe is integrally provided with an abutment seat, and an anti-disengagement spring is fixedly connected between the abutment seat and the mounting seat.

[0018] The above technical solution is achieved by using the support of the anti-detachment spring to prevent the power tube from easily coming out of the power hole.

[0019] As a preferred embodiment of the present invention, the lower end of the push rod is integrally provided with a threaded rod, and a counterweight is threadedly connected to the threaded rod.

[0020] To achieve the above technical solution, the push rod can be prevented from failing to reset due to excessive elasticity of the first elastic element. Furthermore, multiple counterweights can be installed on the threaded rod to adjust the pressure on the first elastic element, thereby improving practicality.

[0021] As a preferred embodiment of the present invention, a buffer structure is provided between the hydraulic rod and the upper mold.

[0022] The above technical solution avoids excessive pressure between the upper and lower molds, which could damage the upper and / or lower molds.

[0023] As a preferred embodiment of the present invention, the buffer structure includes a support plate, an inner rod, a slide tube, and a rubber block. The support plate is fixed to the lower end of the hydraulic rod. One end of the inner rod is fixed to the upper surface of the upper mold, and the other end is slidably connected to the slide tube. The end of the slide tube away from the inner rod is fixedly connected to the lower surface of the support plate. The rubber block is vertically arranged and its two ends are fixedly connected to the support plate and the upper mold, respectively.

[0024] To achieve the above technical solution, as the hydraulic rod moves closer to the lower mold, the upper mold and the lower mold abut against each other. As the hydraulic rod continues to move closer to the lower mold, the inner rod moves along the length of the slide tube. At the same time, the rubber block is compressed to generate a buffering effect, which protects the upper and lower molds. The design of the inner rod and the slide tube guides the direction of the force of the support plate, so that the rubber block can better bear the force.

[0025] As a preferred embodiment of the present invention, a baffle is provided on the machine body, the baffle is disposed opposite to the air pipe, and the upper end of the baffle is hinged to the machine body by a pin.

[0026] To achieve the above technical solution, the temple of the eyeglasses is blown down from the lower mold by a high-speed airflow and falls onto the baffle. As the baffle rotates at a certain angle along the pin, it generates a force-relieving effect, allowing the temple of the eyeglasses to fall along the baffle for easy collection. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the external structure in the embodiment.

[0028] Figure 2 To illustrate the structural diagram of the mounting base;

[0029] Figure 3 This is a schematic diagram illustrating the structure during pushrod pressurization;

[0030] Figure 4 This is a schematic diagram illustrating the structure after the push rod releases pressure;

[0031] Figure 5 A schematic diagram illustrating the guiding structure;

[0032] Figure 6 A cross-sectional schematic diagram of the booster column;

[0033] Figure 7 To illustrate the structural diagram of the guide rod;

[0034] Figure 8 This is a cross-sectional diagram of the fixed block.

[0035] Reference numerals: 1. Worktable; 10. Through hole; 101. Connecting rod; 11. Machine body; 12. Hydraulic cylinder; 13. Hydraulic rod; 21. Upper mold; 22. Lower mold; 221. Lower cavity; 3. Buffer structure; 31. Support plate; 32. Inner rod; 33. Slide tube; 34. Rubber block; 41. Mounting cavity; 42. Mounting seat; 43. Power hole; 44. Power pipe; 45. Abutment seat; 46. Anti-detachment spring; 5. Push rod; 51. Threaded rod 52. Counterweight; 6. Fixing block; 61. Annular groove; 62. Sealing ring; 63. First elastic element; 64. Air tube; 65. Reset inclined surface; 7. Sliding hole; 71. Pressure boosting column; 72. Conducting inclined block; 8. Conducting assembly; 81. Guide inclined groove; 82. Guide hole; 83. Guide rod; 84. Second elastic element; 85. Sealing cover; 86. Guide structure; 861. Guide straight groove; 862. Positioning screw; 9. Baffle; 91. Pin. Detailed Implementation

[0036] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and mastered.

[0037] A hydraulic press for manufacturing eyeglass temples includes a worktable 1, a machine body 11, and a hydraulic cylinder 12. The worktable 1 is fixed to the middle of the machine body 11 and is placed horizontally. The hydraulic cylinder 12 is fixed to the upper end of the machine body 11 and is vertically arranged. The hydraulic rod 13 of the hydraulic cylinder 12 is fixedly connected to the upper mold 21 through a buffer structure 3; the upper mold 21 is located above the worktable 1.

[0038] The buffer structure 3 includes a support plate 31, an inner rod 32, a slide tube 33, and a rubber block 34. The support plate 31 is horizontally positioned and fixed to the lower end of the hydraulic rod 13. The inner rod 32 is cylindrical, and the slide tube 33 is tubular. The lower end of the inner rod 32 is fixed to the upper surface of the upper mold 21, and the upper end is slidably connected to the slide tube 33. The inner rod 32 and the slide tube 33 are coaxially arranged. The upper end of the slide tube 33 is fixedly connected to the lower surface of the support plate 31.

[0039] The rubber block 34 is cylindrical and vertically arranged, and its two ends are fixedly connected to the support plate 31 and the upper mold 21, respectively.

[0040] A lower mold 22 corresponding to the upper mold 21 is fixedly connected to the worktable 1 by bolts. The upper surface of the lower mold 22 has a lower cavity 221, and the lower surface of the upper mold 21 has a lower cavity 221. The upper cavity and the lower cavity 221 are combined to form a forming cavity for forming the temple of the eyeglasses.

[0041] The raw material is placed on the lower mold 22, and then the hydraulic cylinder 12 is activated. The hydraulic rod 13 moves downward, and the support plate 31 moves downward synchronously with the hydraulic rod 13, so that the upper mold 21 and the lower mold 22 are pressed together. The raw material is deformed after being squeezed and forms the temple of the eyeglasses in the forming cavity. Since there will be a small deviation in the stroke of the hydraulic rod 13, the pressure between the upper mold 21 and the lower mold 22 is not too large due to the buffering effect of the rubber block 34, thereby improving the protection of the upper mold 21 and the lower mold 22.

[0042] A mounting cavity 41 is provided at the front of the workbench 1, and a mounting base 42 is fixedly connected inside the mounting cavity 41.

[0043] The mounting base 42 has a vertically arranged power hole 43, and a vertically arranged power pipe 44 is slidably connected in the power hole 43; an abutment 45 is integrally provided at the lower end of the power pipe 44; an anti-disengagement spring 46 is fixedly connected between the abutment 45 and the mounting base 42. The abutment 45 is located on the outside of the mounting base 42.

[0044] A through hole 10 is provided on the worktable 1. A connecting rod 101 is fixedly connected to the lower end of the hydraulic rod 13 for contacting the lower surface of the contact seat 45. The connecting rod 101 is U-shaped. The connecting rod 101 is made of multiple sections welded together and passes through the through hole 10.

[0045] When the hydraulic rod 13 moves upward, the upper mold 21 separates from the lower mold 22. At the same time, the connecting rod 101 moves upward and comes into contact with the abutment seat 45, causing the abutment seat 45 to drive the power pipe 44 to move closer to the power hole 43.

[0046] A push rod 5 is slidably connected inside the power tube 44, and the push rod 5 also passes through the abutment seat 45; a threaded rod 51 is integrally provided at the lower end of the push rod 5, and a counterweight 52 is threadedly connected to the threaded rod 51. The counterweight 52 is fixed to the threaded rod 51 by a set screw (not shown in the figure), so that the push rod 5 continuously tends to move downward.

[0047] A circularly shaped fixing block 6 is fixedly connected to the push rod 5. An annular groove 61 is formed on the outer wall of the fixing block 6, and the annular groove 61 is coaxially arranged with the fixing block 6. A rubber sealing ring 62 is fixedly connected in the annular groove 61. The sealing ring 62 is used to abut against the inner wall of the power hole 43, but the sealing ring 62 is not tightly pressed against the inner wall of the power hole 43 to reduce the friction between the sealing ring 62 and the inner wall of the power hole 43, so as to facilitate the reset of the push rod 5 and the fixing block 6.

[0048] A first elastic element 63, which is a spring, is fixedly connected between the fixed block 6 and the end of the power pipe 44.

[0049] An air pipe 64 communicating with a power hole 43 is fixedly connected to the upper end of the mounting base 42. The air pipe 64 is located above the worktable 1. The end of the air pipe 64 away from the power hole 43 is bent and faces the lower mold 22. The air pipe 64 can be made of aluminum or copper.

[0050] The fixed block 6 moves rapidly upward along the power hole 43, and the air in the power hole 43 is discharged from the air pipe 64 and blown towards the temple of the glasses, blowing the temple of the glasses off the lower mold 22.

[0051] A sliding hole 7 is provided on the mounting base 42, which is connected to the power hole 43. The sliding hole 7 is arranged radially along the power hole 43. A booster column 71 for abutting against the fixing block 6 is slidably connected in the sliding hole 7. The power pipe 44 moves toward the fixing block 6 and the booster column 71 moves away from the fixing block 6 through the transmission assembly 8.

[0052] The hydraulic rod 13 drives the connecting rod 101 to move upward, causing the power pipe 44 to move upward along the power hole 43. Due to the obstruction of the booster column 71, the first elastic element 63 is compressed. As the power pipe 44 moves further, the booster column 71 moves away from the fixed block 6 through the transmission component 8. At the moment when the booster column 71 separates from the fixed block 6, due to the elastic force of the first elastic element 63, the push rod 5 and the fixed block 6 move rapidly along the length direction of the power hole 43. The air in the power hole 43 is quickly discharged from the air pipe 64, and the generated high-speed airflow blows towards the temple of the glasses.

[0053] The transmission assembly 8 includes a guide groove 81, a guide hole 82, a guide rod 83, a second elastic element 84, a sealing cap 85, and a guide structure 86. The guide groove 81 is formed on the surface of the booster column 71 and is located in the middle of the booster column 71. The guide hole 82 is formed on the mounting base 42 and is arranged parallel to the power hole 43.

[0054] The guide rod 83 is slidably connected in the guide hole 82, with one end fixedly connected to the power pipe 44, and the other end abutting against the inner wall of the guide groove 81. The second elastic element 84 is also a spring, with both ends fixedly connected to the booster column 71 and the sealing cover 85, respectively, for the booster column 71 to return to its original position. The sealing cover 85 is fixed to the end of the sliding hole 7 away from the power hole 43. The booster column 71 passes through. The guide structure 86 translates along the length of the sliding hole 7.

[0055] The aforementioned guide structure 86 includes a guide groove 861 and a positioning screw 862. The guide groove 861 is formed on the outer wall of the mounting base 42 and communicates with the sliding hole 7; the length direction of the guide groove 861 is parallel to the length direction of the sliding hole 7. The positioning screw 862 is threaded onto the side wall of the pressure boosting column 71 and is located within the guide groove 861.

[0056] The gap between the side wall of the positioning screw 862 and the inner wall of the guide groove 861 is 1mm.

[0057] A reset inclined surface 65 is provided on the outer circular surface of the fixed block 6. A conductive inclined block 72 is integrally provided at one end of the pressure boosting column 71 near the fixed block 6. The inclined surface on the conductive inclined block 72 is used to abut against the reset inclined surface 65, and the step on the conductive inclined block 72 is used to abut against the side of the fixed block 6 away from the reset inclined surface 65.

[0058] A baffle 9 is provided on the body 11, and the baffle 9 is positioned opposite the air tube 64. The air tube 64 is made of steel. The upper end of the baffle 9 is hinged to the body 11 by a pin 91. The baffle 9 can be made of cloth or cardboard to improve the cushioning effect and prevent damage to the temples of the glasses.

[0059] In summary, during use, the worker places the raw material in the lower cavity 221, activates the hydraulic cylinder 12, and the hydraulic rod 13 moves downward. The support plate 31 moves downward synchronously with the hydraulic rod 13, and the upper mold 21 and lower mold 22 abut together, pressing the raw material into an eyeglass temple. The rubber block 34 acts as a buffer, preventing damage to the upper mold 21 and lower mold 22. Subsequently, the hydraulic rod 13 moves upward, separating the upper mold 21 and lower mold 22. The lower end of the connecting rod 101 abuts against the contact seat 45, causing the contact seat 45 to push the power pipe 44 upward along the power hole 43. The fixing block 6 abuts against the step on the guide inclined block 72 at the upper end of the pressure boosting column 71, compressing the first elastic element 63 and generating elastic force. The elastic force gradually increases. As the power pipe 44 continues to move, the guide rod 83 moves along the length of the sliding hole 7, and the guide surface on the guide rod 83 abuts against the inner wall of the guide inclined groove 81. The pressure boosting column 71 moves further along the sliding hole 7. As the pressure column 71 moves away from the fixed block 6, at the instant it disengages from the fixed block 6, the fixed block 6 drives the push rod 5 to move rapidly along the power hole 43 towards the air pipe 64. This allows most of the air in the power hole 43 to be discharged from the power hole 43 and enter the air pipe 64. Finally, the air is discharged from the air pipe 64 and blown towards the temple of the glasses. The temple of the glasses is blown from the lower mold 22 towards the baffle 9. After being subjected to force, the baffle 9 flips along the pin 91 to relieve the force, causing the temple of the glasses to slide off the baffle 9. A plastic box is placed under the baffle 9 so that the temple of the glasses can fall into the plastic box.

[0060] For slower production speeds: Due to the weight of the counterweight 52 and the push rod 5 itself, the push rod 5 tends to move downwards. This allows the push rod 5 to reset without contacting the guide block 72.

[0061] For faster production speeds: The worker places new raw materials into the lower cavity 221 of the lower mold 22. The hydraulic cylinder 12 is activated, and the connecting rod 101 quickly moves downward and separates from the contact seat 45. The elastic force of the second elastic element 84 resets the pressure boosting column 71. The reset inclined surface 65 on the fixed block 6 abuts against the inclined surface on the transmission inclined block 72, causing the pressure boosting column 71 to move along the sliding hole 7. The elastic force of the second elastic element 84 then resets the pressure boosting column 71 again, and subsequently the push rod 5 resets.

[0062] Therefore, it can operate stably regardless of whether the production speed is fast or slow, and there will be no jamming.

[0063] During the process of the fixed block 6 moving down and resetting, negative pressure will be generated in the power hole 43, which will cause the air pipe 64 to produce a suction effect, so as to achieve a certain dust removal effect on the lower mold 22.

[0064] Of course, the above are just typical examples of the present invention. In addition, the present invention may have many other specific embodiments. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

Claims

1. A hydraulic press for manufacturing eyeglass temples, comprising a worktable, a machine body, and a hydraulic cylinder, wherein the worktable is fixed to the middle of the machine body, the hydraulic cylinder is fixed to the upper end of the machine body, the hydraulic rod of the hydraulic cylinder is connected to an upper mold, the upper mold is located above the worktable, a lower mold corresponding to the upper mold is connected to the worktable, the upper surface of the lower mold has a lower cavity, the lower surface of the upper mold has a lower cavity, the upper cavity and the lower cavity are combined to form a forming cavity for forming eyeglass temples, characterized in that: The worktable has an installation cavity, and an installation base is fixedly connected inside the installation cavity. The installation base has a power hole, and a vertically arranged power pipe is slidably connected inside the power hole. The lower end of the hydraulic rod is fixedly connected to a connecting rod for contacting the lower end of the power pipe. A push rod is slidably connected inside the power pipe, and a fixing block is fixedly connected to the push rod for contacting the inner wall of the sliding hole. A first elastic element is fixedly connected between the fixing block and the power pipe. The installation base has a sliding hole connected to the power hole, and the sliding hole is arranged radially along the power hole. A pressure boosting column for contacting the fixing block is slidably connected inside the sliding hole. The power pipe moves towards the fixing block, and the pressure boosting column moves away from the fixing block through a transmission component. An air pipe communicating with the power hole is fixedly connected to the installation base, and the end of the air pipe away from the power hole faces the lower mold. The transmission assembly includes a guide groove, a guide hole, a guide rod, a second elastic element, a sealing cap, and a guide structure. The guide groove is formed on the surface of the booster column. The guide hole is formed on the mounting base and is parallel to the power hole. The guide rod is slidably connected in the guide hole, with one end fixedly connected to the power pipe and the other end abutting against the inner wall of the guide groove. The two ends of the second elastic element are fixedly connected to the booster column and the sealing cap, respectively. The sealing cap is fixed to the end of the sliding hole away from the power hole. The booster column is translated along the length of the sliding hole through the guide structure. The guiding structure includes a guide groove and a positioning screw. The guide groove is formed on the outer wall of the mounting base and communicates with the sliding hole. The length direction of the guide groove is parallel to the length direction of the sliding hole. The positioning screw is threaded onto the side wall of the booster column and is located in the guide groove.

2. A hydraulic press for manufacturing eyeglass temples according to any one of claims 1, characterized in that: The side wall of the fixed block is provided with a reset inclined surface, and the end of the booster column near the fixed block is integrally provided with a conduction inclined block, which is used to abut against the reset inclined surface.

3. The hydraulic press for manufacturing eyeglass temples according to claim 2, characterized in that: An annular groove is provided on the outer wall of the fixing block, and a sealing ring is fixedly connected in the annular groove. The sealing ring is used to abut against the inner wall of the power hole.

4. A hydraulic press for manufacturing eyeglass temples according to claim 2, characterized in that: The end of the power pipe is integrally provided with an abutment seat, and an anti-disengagement spring is fixedly connected between the abutment seat and the mounting base.

5. A hydraulic press for manufacturing eyeglass temples according to claim 2, characterized in that: The lower end of the push rod is integrally provided with a threaded rod, and a counterweight is threadedly connected to the threaded rod.

6. A hydraulic press for manufacturing eyeglass temples according to claim 1, characterized in that: A buffer structure is provided between the hydraulic rod and the upper mold.

7. A hydraulic press for manufacturing eyeglass temples according to claim 6, characterized in that: The buffer structure includes a support plate, an inner rod, a slide tube, and a rubber block. The support plate is fixed to the lower end of the hydraulic rod. One end of the inner rod is fixed to the upper surface of the upper mold, and the other end is slidably connected to the slide tube. The end of the slide tube away from the inner rod is fixedly connected to the lower surface of the support plate. The rubber block is vertically arranged and its two ends are fixedly connected to the support plate and the upper mold, respectively.

8. A hydraulic press for manufacturing eyeglass temples according to claim 1, characterized in that: The machine body is provided with a baffle, which is positioned opposite to the air pipe, and the upper end of the baffle is hinged to the machine body by a pin.

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