Hydraulic ejection structure of double-color scissor plastic mold

Abstract

The utility model relates to the technical field of ejection structures, and discloses a hydraulic ejection structure of a double-color scissor plastic mold, which comprises an ejection block, connecting holes are formed in four endpoints of the ejection block, an oil storage cavity is formed in the ejection block, an oil injection groove is formed in the side edge of the ejection block corresponding to the oil storage cavity in a penetrating manner, and the oil injection groove is communicated with the oil storage cavity. A sealing insertion block is installed in the oil injection groove in an inserted mode, the sealing insertion block is fixedly connected with an ejection block through screws on the two sides of the sealing insertion block, and a plurality of ejection rods are slidably installed at the position, corresponding to the oil storage cavity, of the top of the ejection block in a rectangular array mode. Through mutual cooperation of the structures, on the premise that structures such as a hydraulic unit and an air cylinder unit do not need to be additionally installed, ejection of the keycap support is achieved, and the keycap support ejection device is simple and practical in structure and more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of ejection structures, in particular to a hydraulic ejection structure for a double-color scissors plastic mold. Background Art

[0002] The keycap bracket is a component used to support and fix the keyboard keycaps. Usually made of plastic or metal, one end of the bracket is fixed to the bottom of the keyboard, and the other end is used to support the keycaps to keep them stable and vertical. The structure of the keycap bracket is mostly two sub-brackets that are movably connected to each other. It is a scissor-type structure, and in order to avoid errors during installation that affect use, the two sub-brackets are often set to different colors for easy identification during installation, so they are generally called "two-color scissors".

[0003] The keycap bracket is mostly produced by injection molding. Therefore, after the production is completed, the molded keycap bracket needs to be disassembled through the ejection structure. The existing hydraulic ejection structure is mostly driven by an additional hydraulic unit or cylinder unit, which makes the overall device heavy. When dealing with the ejection of relatively small injection-molded objects such as keycap brackets, the installation and use are inconvenient. In order to solve the above problems, the ejection of the keycap bracket is realized without the need to install additional structures such as hydraulic units and cylinder units. For this reason, we propose a two-color scissors plastic mold hydraulic ejection structure. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a hydraulic ejection structure for a two-color scissors plastic mold, which solves the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic ejection structure of a two-color scissors plastic mold, comprising an ejection block, the four end positions of the ejection block are provided with connection holes for connection, the inside of the ejection block is provided with an oil storage cavity for storing oil, the side of the ejection block corresponding to the position of the oil storage cavity is provided with an oil filling groove for injecting oil, the inside of the oil filling groove is plugged with a sealing plug for sealing, the sealing plug is fixedly connected to the ejection block by screws on both sides thereof, a plurality of ejector rods are slidably installed in a rectangular array at the position of the top of the ejection block corresponding to the oil storage cavity, and also includes:

[0006] A clamping structure is provided on the inner wall surface of the connecting hole, and the clamping structure is used to clamp the connecting rod inserted into the connecting hole;

[0007] An extrusion structure is arranged on the top of the ejection block, and the extrusion structure is used to squeeze the oil inside the oil storage cavity.

[0008] Preferably, the clamping structure includes a telescopic groove, a clamping spring, a rotating seat and a roller. The inner wall surface of the connecting hole is provided with a telescopic groove, and the bottom of the inner wall surface of the telescopic groove is fixedly installed with a clamping spring. The other end of the clamping spring is fixedly connected to a section of the rotating seat, and a roller is rotatably installed on the rotating seat.

[0009] Preferably, the ejection blocks are provided with corresponding ejection grooves at positions corresponding to the ejector rods, and the ejection grooves are generally in a stepped shape that is wider at the top and narrower at the bottom.

[0010] Preferably, a sealing bottom gasket is fixedly installed at a position of the bottom of the ejector rod corresponding to the ejection groove, and the sealing bottom gasket is made entirely of rubber.

[0011] Preferably, the sealing plug is rectangular as a whole, a plurality of sealing edges are fixedly installed on the outer wall surface of the sealing plug at equal intervals, and corresponding sealing grooves are opened on the inner wall surface of the oil filling groove at positions corresponding to the sealing edges, and the sealing edges are deformable.

[0012] Preferably, the extrusion structure includes a pressure rod, a pressure plate, a buffer spring and a pressure block. The pressure rod is slidably installed on the top of the ejection block, the bottom of the pressure rod passes through the ejection block and extends to the position of the oil storage chamber where a pressure block is fixedly installed, a pressure plate is fixedly installed on the outer wall surface of the pressure rod, and a buffer spring is also sleeved and installed on the outer wall surface of the pressure rod corresponding to the bottom of the pressure plate.

[0013] Preferably, an observation groove is provided on the side of the ejection block at a position corresponding to the oil storage cavity, and an observation window composed of a transparent acrylic plate is fixedly installed inside the observation groove.

[0014] Compared with the prior art, the utility model provides a hydraulic ejection structure for a two-color scissors plastic mold, which has the following beneficial effects:

[0015] 1. The hydraulic ejection structure of the two-color scissors plastic mold can extrude a number of rollers according to the diameter of the connecting rod when adapting to connecting rods of different diameters through the setting of the clamping structure, so that it drives the rotating seat to extrude the clamping spring inside the telescopic groove to clamp it, and through the setting of the rollers, the installation and disassembly are smoother, convenient and practical.

[0016] 2. The hydraulic ejection structure of the two-color scissors plastic mold, through the setting of the ejection groove, when the oil inside the oil storage cavity is squeezed through the extrusion structure, the oil passes through the narrow tube at the bottom of the ejection groove to the inside of the wide tube, thereby forming a buffer, and the ejector rod slidably installed inside the ejection groove is lifted up to eject the formed keycap bracket, and the setting of the sealing bottom pad can effectively avoid the problem of oil leakage, which is more convenient and practical.

[0017] 3. The hydraulic ejection structure of the two-color scissors plastic mold, through the setting of the extrusion structure, when the ejector rod needs to be ejected, it is only necessary to squeeze the pressure rod to drive the pressure block at its bottom to descend inside the oil storage chamber, so as to compress the space of the oil and eject it from several ejection grooves, thereby ejecting the ejector rod to complete its disassembly, and through the cooperation between the pressure plate and the buffer spring, the sinking rate of the pressure block can be slowed down to avoid excessive pressure to damage the internal structure, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the clamping structure of the utility model;

[0020] Figure 3 It is a schematic cross-sectional view of the utility model as a whole;

[0021] Figure 4 For this utility model Figure 3 A local enlarged schematic diagram;

[0022] Figure 5 This is a schematic diagram of the structure of the observation window of the utility model.

[0023] In the figure: 1. ejector block; 2. connecting hole; 3. oil storage chamber; 4. oil filling groove; 5. sealing plug; 6. ejector rod; 7. telescopic groove; 8. clamping spring; 9. rotating seat; 10. roller; 11. ejector groove; 12. sealing base pad; 13. sealing edge; 14. sealing groove; 15. pressure rod; 16. pressure plate; 17. buffer spring; 18. pressure block; 19. observation groove; 20. observation window. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-5A hydraulic ejection structure for a two-color scissors plastic mold includes an ejection block 1, and connection holes 2 for connection are provided at the four end positions of the ejection block 1. An oil storage cavity 3 for storing oil is provided inside the ejection block 1. An oil injection groove 4 for injecting oil is provided through the side of the ejection block 1 corresponding to the oil storage cavity 3. A sealing plug 5 for sealing is installed inside the oil injection groove 4. The sealing plug 5 is fixedly connected to the ejection block 1 by screws on both sides thereof. A plurality of ejector rods 6 are slidably installed in a rectangular array at the top of the ejection block 1 corresponding to the oil storage cavity 3. The invention also includes:

[0026] A clamping structure is provided on the inner wall surface of the connecting hole 2, and the clamping structure is used to clamp the connecting rod inserted into the connecting hole 2;

[0027] An extrusion structure is arranged on the top of the ejection block 1 , and the extrusion structure is used to squeeze the oil in the oil storage cavity 3 .

[0028] Furthermore, the clamping structure includes a telescopic groove 7, a clamping spring 8, a rotating seat 9 and a roller 10. The inner wall surface of the connecting hole 2 is provided with a telescopic groove 7, and the bottom of the inner wall surface of the telescopic groove 7 is fixedly installed with a clamping spring 8. The other end of the clamping spring 8 is fixedly connected to a section of the rotating seat 9, and the roller 10 is rotatably installed on the rotating seat 9. Through the setting of the clamping structure, when adapting to connecting rods of different diameters, a number of rollers 10 can be squeezed according to the diameter of the connecting rod, so that it drives the rotating seat 9 to squeeze the clamping spring 8 inside the telescopic groove 7 to clamp it, and through the setting of the roller 10, the installation and disassembly are smoother, convenient and practical.

[0029] Furthermore, ejection grooves 11 corresponding to the ejector rods 6 are provided inside the ejection block 1 , and the ejection grooves 11 are generally in a stepped shape that is wider at the top and narrower at the bottom.

[0030] Furthermore, a sealing bottom gasket 12 is fixedly installed at the bottom of the ejector rod 6 at a position corresponding to the ejection groove 11. The sealing bottom gasket 12 is made of rubber as a whole. Through the setting of the ejection groove 11, when the oil inside the oil storage chamber 3 is squeezed through the extrusion structure, the oil passes through the narrow tube at the bottom of the ejection groove 11 to the inside of the wide tube, thereby forming a buffer, and the ejector rod 6 slidably installed inside the ejection groove 11 is lifted up to eject the formed keycap bracket. In addition, through the setting of the sealing bottom gasket 12, the problem of oil leakage can be effectively avoided, which is more convenient and practical.

[0031] Furthermore, the sealing plug 5 is rectangular as a whole, and a plurality of sealing edges 13 are fixedly installed on the outer wall surface of the sealing plug 5 at equal intervals. The inner wall surface of the oil filling groove 4 is provided with sealing grooves 14 corresponding to the sealing edges 13. The sealing edges 13 are deformable. Through the mutual cooperation between the sealing edges 13 and the sealing grooves 14, the sealing performance of the sealing plug 5 to the oil filling groove 4 can be effectively guaranteed, thereby avoiding the occurrence of oil leakage during use.

[0032] Furthermore, the extrusion structure includes a pressure rod 15, a pressure plate 16, a buffer spring 17 and a pressure block 18. The pressure rod 15 is slidably installed on the top of the ejection block 1, and the bottom of the pressure rod 15 passes through the ejection block 1 and extends to the position of the oil storage chamber 3 where a pressure block 18 is fixedly installed. A pressure plate 16 is fixedly installed on the outer wall of the pressure rod 15, and a buffer spring 17 is also sleeved and installed on the outer wall of the pressure rod 15 corresponding to the bottom of the pressure plate 16. Through the setting of the extrusion structure, when it is necessary to eject the ejector rod 6, it is only necessary to squeeze the pressure rod 15 to drive the pressure block 18 at its bottom to descend inside the oil storage chamber 3, so as to compress the space of the oil and eject it from the plurality of ejection grooves 11, thereby ejecting the ejector rod 6 to complete its disassembly, and through the cooperation between the pressure plate 16 and the buffer spring 17, the sinking rate of the pressure block 18 can be slowed down to avoid excessive pressure from damaging the internal structure, which is more practical.

[0033] Furthermore, an observation groove 19 is provided on the side of the ejection block 1 at a position corresponding to the oil storage chamber 3, and an observation window 20 composed of a transparent acrylic plate is fixedly installed inside the observation groove 19. Through the arrangement of the observation groove 19 and the observation window 20, the oil condition inside the oil storage chamber 3 can be observed through the observation window 20, which is convenient for use during maintenance.

[0034] When in use, first align the connecting hole 2 opened on the ejection block 1 with the several connecting rods of the injection molding structure, and then the connecting rod can be inserted into the inside of the connecting hole 2. Through the setting of the clamping structure, when adapting to connecting rods of different diameters, several rollers 10 can be squeezed according to the diameter of the connecting rod, so that it drives the rotating seat 9 to squeeze the clamping spring 8 inside the telescopic groove 7 to clamp it, and through the setting of the roller 10, the installation and disassembly are smoother, and then the ejector rod 6 can be ejected through the setting of the extrusion structure. When in use, it is only necessary to squeeze the pressure rod 15 to drive the pressure block 18 at the bottom to descend inside the oil storage chamber 3, so as to compress the space of the oil and eject it from the several ejection grooves 11, thereby ejecting the ejector rod 6 to complete its disassembly, and through the pressure plate The cooperation between 16 and the buffer spring 17 can slow down the sinking rate of the pressure block 18 to avoid excessive pressure from damaging the internal structure. When the oil in the oil storage chamber 3 is squeezed by the extrusion structure, the oil enters the wide tube through the narrow tube at the bottom of the ejection groove 11, thereby forming a buffer, and the ejector rod 6 slidably installed in the ejection groove 11 is lifted up to eject the formed keycap bracket, and the setting of the sealing bottom pad 12 can effectively avoid the problem of oil leakage. After ejection, the pressure rod 15 is slowly ejected by the buffer spring 17 to achieve the contraction of the ejector rod 6. The present invention realizes the ejection of the keycap bracket through the mutual cooperation between the upper structures without the need to install additional structures such as hydraulic units and cylinder units, and the structure is simple, practical and more convenient.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic ejection structure for a two-color scissors plastic mold, comprising an ejection block (1), wherein the four end positions of the ejection block (1) are all provided with connection holes (2) for connection, an oil storage cavity (3) for storing oil is provided inside the ejection block (1), an oil injection groove (4) for injecting oil is provided through the side of the ejection block (1) corresponding to the oil storage cavity (3), a sealing plug (5) for sealing is installed inside the oil injection groove (4), the sealing plug (5) is fixedly connected to the ejection block (1) by screws on both sides thereof, and a plurality of ejector rods (6) are slidably installed in a rectangular array at the top of the ejection block (1) corresponding to the oil storage cavity (3), characterized in that: Also includes: A clamping structure is arranged on the inner wall surface of the connecting hole (2), the clamping structure being used to clamp a connecting rod inserted into the connecting hole (2); The top of the ejection block (1) is provided with an extrusion structure, which is used to squeeze the oil inside the oil storage cavity (3).

2. A two-color scissors plastic mold hydraulic ejection structure according to claim 1, characterized in that: The clamping structure comprises a telescopic slot (7), a clamping spring (8), a rotating seat (9) and a roller (10); the inner wall surface of the connecting hole (2) is provided with a telescopic slot (7); the bottom of the inner wall surface of the telescopic slot (7) is fixedly mounted with a clamping spring (8); the other end of the clamping spring (8) is fixedly connected to a section of the rotating seat (9); and the rotating seat (9) is rotatably mounted with a roller (10).

3. The hydraulic ejection structure of a two-color scissors plastic mold according to claim 1, characterized in that: The ejection block (1) is provided with an ejection groove (11) corresponding to the ejector rod (6) at a position inside the ejection block (1). The ejection groove (11) is generally in a stepped shape that is wider at the top and narrower at the bottom.

4. A two-color scissors plastic mold hydraulic ejection structure according to claim 3, characterized in that: A sealing bottom gasket (12) is fixedly mounted at a position of the bottom of the ejector rod (6) corresponding to the ejection groove (11), and the sealing bottom gasket (12) is entirely made of rubber.

5. The hydraulic ejection structure of a two-color scissors plastic mold according to claim 1, characterized in that: The sealing plug (5) is rectangular in shape as a whole, and a plurality of sealing edges (13) are fixedly installed at equal intervals on the outer wall surface of the sealing plug (5). The inner wall surface of the oil filling groove (4) is provided with sealing grooves (14) corresponding to the sealing edges (13), and the sealing edges (13) are deformable.

6. The hydraulic ejection structure of a two-color scissors plastic mold according to claim 1, characterized in that: The extrusion structure comprises a pressure rod (15), a pressure plate (16), a buffer spring (17) and a pressure block (18); the pressure rod (15) is slidably mounted on the top of the ejection block (1); the bottom of the pressure rod (15) passes through the ejection block (1) and extends to the oil storage chamber (3) where a pressure block (18) is fixedly mounted; the pressure plate (16) is fixedly mounted on the outer wall surface of the pressure rod (15); and a buffer spring (17) is also sleeved and mounted on the outer wall surface of the pressure rod (15) corresponding to the bottom of the pressure plate (16).

7. The hydraulic ejection structure of a two-color scissors plastic mold according to claim 1, characterized in that: An observation groove (19) is also provided on the side of the ejection block (1) at a position corresponding to the oil storage cavity (3), and an observation window (20) composed of a transparent acrylic plate is fixedly installed inside the observation groove (19).

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