Layout and Working Method of Capsule Hot Injection Molding Tooling System with Lubrication Function

Abstract

The present invention discloses a layout and working method of a capsule hot injection mold system with a lubrication function, which solves the problem that the existing mold lubrication mechanism needs to be set up separately, thereby reducing the production rhythm of capsules; a female mold bottom base plate (4) is fixedly arranged on a cylindrical rotating table (5); a female mold (11) and a male mold lubricating cylinder (13) are respectively arranged on the same circumference of the top surface of the female mold bottom base plate (4); a hydraulic oil cylinder (2) is fixedly suspended on the lower bottom surface of the crossbeam of a gantry (1) directly above the female mold bottom base plate (4); a male mold top base plate (3) is connected to an output shaft extending downward of the hydraulic oil cylinder (2); the male mold (10) and the female mold are arranged in correspondence with each other in the upper and lower parts; when the male mold (10) and the female mold are closed, a female mold lubricating plunger (12) is arranged on one side of the closed male and female molds, and a male mold lubricating cylinder is arranged on the other side.

Description

Technical Field

[0001] The invention relates to a plant capsule hot injection molding die, in particular to an integrated die system for plant capsule hot injection molding and lubrication of male and female dies and a working method thereof. Background Art

[0002] The production process of plant capsules includes coarse crushing, pulverizing, mixing, granulation, drying, granulation, screening, filling, and polishing. Granulation is completed in a mold clamping device, which is equipped with female and male molds for capsule molding. After the female and male molds are clamped together, an injection molding space is formed between them. A mixed liquid is injected into the injection molding space, and after the mixed liquid solidifies, the capsule shell is formed. The mold clamping device is connected to an injection molding machine. The injection molding machine uses the thrust of the screw (or plunger) to heat the raw materials and inject the flowing mixture into the space formed after the female and male molds are clamped together. The injected mixture dries and sets to form a capsule product. After the capsule is formed and demolded, lubricating oil needs to be applied to the surfaces of the female and male molds to facilitate the smooth demolding of the new injection-molded capsules after the female and male molds are clamped together next time. The existing mold's lubricating oil application mechanism is set separately and needs to be used in conjunction with the capsule molding mold. This setting method slows down the production pace of capsules, increases equipment investment, and occupies more production space. Summary of the Invention

[0003] The present invention provides a layout and working method of a capsule hot injection mold system with lubrication function, which solves the technical problem that the existing mold lubrication mechanism needs to be set up separately and used in conjunction with the capsule forming device, thereby reducing the production rhythm of the capsule.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The overall concept of the present invention is as follows: in the gantry, a mold clamping mechanism is arranged along the vertical mold clamping direction. A rotating worktable that can rotate in the horizontal plane is arranged on the supporting base just below the gantry beam. The bottom base plate of the female mold is fixedly set on the rotating worktable. Lubricating sleeves of the female mold and the male mold are arranged on the bottom base plate of the female mold respectively. A hydraulic cylinder is fixedly connected to the lower bottom surface of the gantry beam just above the bottom base plate of the female mold. The output shaft extending downward of the hydraulic cylinder is connected to the top base plate of the male mold. Lubricating plungers of the male mold and the female mold are arranged on the lower bottom surface of the top base plate of the male mold respectively. Four are arranged on the top surface of the bottom base plate of the female mold at intervals of 90 degrees. The female mold is provided with four male molds at intervals of 90 degrees on the lower bottom surface of the male mold top substrate. The female molds are arranged correspondingly to the male molds. That is, when the male mold top substrate moves downward and is molded with the female mold bottom substrate, the four male molds are inserted into the corresponding female molds. Four male mold lubricating sleeves are provided at intervals of 90 degrees on the top surface of the female mold bottom substrate (4). The four male mold lubricating sleeves and the four female molds are arranged on the same circumference. Moreover, each male mold lubricating sleeve is spaced 30 degrees from the female mold on one side and 60 degrees from the female mold on the other side. Four female mold lubricating sleeves are provided at intervals of 90 degrees on the lower bottom surface of the male mold top substrate. The sliding plunger, the four female mold lubricating plungers and the four male molds are arranged on the same circumference, and each female mold lubricating plunger is spaced 60 degrees from the male mold on one side and 30 degrees from the male mold on the other side; when the male and female molds are closed for capsule injection molding, a female mold lubricating plunger is set at a 30-degree arc on one side of each male and female mold that are closed together, and a male mold lubricating sleeve is set at a 30-degree arc on the other side. That is to say, when the male and female molds are closed, the female mold lubricating plunger and the male mold lubricating sleeve are staggered and will not interfere with each other; after the capsule is injection molded, the hydraulic cylinder lifts the top base plate of the male mold and controls the rotation through the gear rack mechanism. The turntable rotates 30 degrees clockwise, and the hydraulic cylinder controls the top base plate of the male mold to fall, so that the top base plate of the male mold and the bottom base plate of the female mold are close together. At this time, the four male molds are correspondingly inserted into the four male mold lubrication sleeves, and the four female mold lubrication plungers are correspondingly inserted into the four female molds, realizing the simultaneous lubrication of the male and female molds. After the lubrication is completed; the hydraulic cylinder controls the top base plate of the male mold to rise, and through the gear rack mechanism, controls the turntable to rotate 30 degrees counterclockwise, so that the bottom base plate of the female mold returns to the original working position, and the hydraulic cylinder controls the top base plate of the male mold to fall, and the capsule injection molding is carried out after the second mold closing. This cycle realizes the continuous operation of capsule injection molding and lubrication.

[0006] A plant capsule hot injection molding mold system with the function of lubricating both male and female molds comprises a gantry frame, a rotating table support base is provided directly below the gantry frame, a cylindrical rotating table is provided on the rotating table support base, a female mold bottom base plate is fixedly provided on the cylindrical rotating table, female mold and male mold lubricating cylinders are respectively provided on the same circumference of the top surface of the female mold bottom base plate, a hydraulic oil cylinder is fixedly suspended on the lower bottom surface of the crossbeam of the gantry frame directly above the female mold bottom base plate, the male mold top base plate is connected to the downwardly extending output shaft of the hydraulic oil cylinder, and male mold and female mold lubricating plungers are respectively provided on the same circumference of the lower bottom surface of the male mold top base plate; the male mold and female mold are respectively provided with corresponding upper and lower arrangements, and when the male mold and female mold are closed, a female mold lubricating plunger is provided on one side of the closed male and female molds, and a male mold lubricating cylinder is provided on the other side.

[0007] On the top surface of the base plate at the bottom end of the female mold, four female molds are arranged at equal intervals of 90 degrees, and at the same time, four male mold lubricating sleeves are arranged at equal intervals of 90 degrees; the four female molds and the four male mold lubricating sleeves are arranged on the same circumference and are staggered with each other; on the lower bottom surface of the base plate at the top end of the male mold, four male molds are arranged at equal intervals of 90 degrees, and at the same time, four female mold lubricating plungers are arranged at equal intervals of 90 degrees, and the four male molds and the four female mold lubricating plungers are arranged on the same circumference and are staggered with each other.

[0008] A horizontal gear ring is fixed on the outer facade of the cylindrical turntable. A rack-driven linear motor is provided on the turntable support base on one side of the cylindrical turntable. A rack is connected to the rack-driven linear motor, and the rack is meshed with the horizontal gear ring.

[0009] A layout and working method of a capsule hot injection mold system with a lubricating function, comprising a gantry, a cylindrical rotating platform provided directly below the gantry, a female mold bottom baseplate fixedly provided on the cylindrical rotating platform, female and male mold lubricating cylinders respectively provided on the same circumference of the top surface of the female mold bottom baseplate, a hydraulic cylinder fixedly suspended on the lower bottom surface of the gantry crossbeam directly above the female mold bottom baseplate, a male mold top baseplate connected to a downwardly extending output shaft of the hydraulic cylinder, and male and female mold lubricating plungers respectively provided on the same circumference of the lower bottom surface of the male mold top baseplate; the mold system is characterized in that the following steps are performed:

[0010] Step 1: Place four female molds on the same circumference of the top surface of the female mold base plate at equal intervals of 90 degrees. Place four male molds on the same circumference of the bottom surface of the male mold base plate at equal intervals of 90 degrees. When the male mold base plate falls onto the female mold base plate, the female and male molds should be closed together.

[0011] Step 2: Place four male mold lubricating sleeves at equal intervals of 90 degrees on the circumference of the four female molds, ensuring that each male mold lubricating sleeve is 30 degrees from the female mold on one side and 60 degrees from the female mold on the other side.

[0012] Step 3: Place four female mold lubricating plungers at 90-degree intervals on the circumference of the four male molds, so that each female mold lubricating plunger is 60 degrees away from the male mold on one side and 30 degrees away from the male mold on the other side.

[0013] The mold system works in the following steps:

[0014] Step 4: By controlling the hydraulic cylinder, the top base plate of the male mold falls onto the bottom base plate of the female mold. The four male molds are correspondingly clamped together with the four female molds. On one side of each clamped male and female mold, a female mold lubricating plunger is provided at a 30-degree arc interval. On the other side of each clamped male and female mold, a male mold lubricating sleeve is provided at a 30-degree arc interval. Then, the capsule injection molding begins.

[0015] Step 5: After the capsule is injection molded, the top base plate of the male mold is raised by controlling the hydraulic cylinder, and the capsule is demoulded;

[0016] Step 6: Rotate the cylindrical rotating table 30 degrees clockwise. Then, by controlling the hydraulic cylinder, the top base plate of the male mold falls onto the bottom base plate of the female mold. The four male molds are correspondingly inserted into the four male mold lubrication sleeves, and the four female mold lubrication plungers are correspondingly inserted into the four female molds to achieve simultaneous lubrication of the male and female molds.

[0017] Step 7. After lubrication, the top substrate of the male mold is raised by controlling the hydraulic cylinder, and the cylindrical rotary table is controlled to rotate 30 degrees counterclockwise to return the bottom substrate of the female mold to its original working position. The hydraulic cylinder controls the top substrate of the male mold to fall again, and the capsule injection molding process is carried out after the second mold closing.

[0018] The mold of the present invention realizes the integration of hot injection molding and lubrication, has a simple structure, is easy to operate, and improves the hot injection molding efficiency of the capsule. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the top substrate 3 of the male mold of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the bottom substrate 4 of the female mold of the present invention;

[0022] Figure 4 This is a schematic structural diagram of the male and female molds of the present invention when they are closed;

[0023] Figure 5 It is a schematic structural diagram of the male and female molds of the present invention during lubrication. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings:

[0025] A plant capsule hot injection molding mold system with lubrication for both male and female molds, comprising a gantry 1, a rotating table support base 6 is provided directly below the gantry 1, a cylindrical rotating table 5 is provided on the rotating table support base 6, a female mold bottom end base plate 4 is fixedly provided on the cylindrical rotating table 5, a female mold 11 and a male mold lubricating cylinder 13 are respectively provided on the same circumference of the top surface of the female mold bottom end base plate 4, a hydraulic cylinder 2 is fixedly suspended on the lower bottom surface of the crossbeam of the gantry 1 directly above the female mold bottom end base plate 4, a male mold top end base plate 3 is connected to the downwardly extending output shaft of the hydraulic cylinder 2, and on the same circumference of the lower bottom surface of the male mold top end base plate 3 , respectively provided with a male mold 10 and a female mold lubricating plunger 12; the male mold 10 and the female mold 11 are arranged correspondingly up and down. When the male mold 10 and the female mold 11 are closed, a female mold lubricating plunger 12 is provided on one side of the closed male and female molds, and a male mold lubricating cylinder 13 is provided on the other side; the present invention adopts an arrangement in which the male mold is on top and the female mold is on the bottom. The hot injection mixed slurry passes through the bottom base plate 4 of the female mold and enters the injection space between the male and female molds after the mold is closed; a channel for providing lubricating oil to the male mold lubricating cylinder 13 is also arranged on the bottom base plate 4 of the female mold; a channel for providing lubricating oil to the female mold lubricating plunger 12 is provided on the top base plate 3 of the male mold.

[0026] On the top surface of the bottom base plate 4 of the female mold, four female molds 11 are arranged at equal intervals of 90 degrees, and at the same time, four male mold lubricating sleeves 13 are arranged at equal intervals of 90 degrees; the four female molds 11 and the four male mold lubricating sleeves 13 are arranged on the same circumference and are staggered with each other; on the lower bottom surface of the top base plate 3 of the male mold, four male molds 10 are arranged at equal intervals of 90 degrees, and at the same time, four female mold lubricating plungers 12 are arranged at equal intervals of 90 degrees, the four male molds 10 and the four female mold lubricating plungers 12 are arranged on the same circumference and are staggered with each other; to ensure that there is no interference with each other when the molds are closed.

[0027] A horizontal gear ring (7) is fixedly provided on the outer vertical surface of the cylindrical rotating table 5. A rack-driven linear motor 9 is provided on the rotating table support base 6 on one side of the cylindrical rotating table 5. A rack 8 is connected to the rack-driven linear motor 9. The rack 8 is meshed with the horizontal gear ring 7.

[0028] A layout and working method of a capsule hot injection mold system with a lubricating function, comprising a gantry 1, a cylindrical rotating table 5 provided directly below the gantry 1, a female mold bottom base plate 4 fixedly provided on the cylindrical rotating table 5, a female mold 11 and a male mold lubricating cylinder 13 respectively provided on the same circumference of the top surface of the female mold bottom base plate 4, a hydraulic cylinder 2 fixedly suspended on the lower bottom surface of the gantry 1 crossbeam directly above the female mold bottom base plate 4, a male mold top base plate 3 connected to the downwardly extending output shaft of the hydraulic cylinder 2, a male mold 10 and a female mold lubricating plunger 12 respectively provided on the same circumference of the lower bottom surface of the male mold top base plate 3; the mold system is characterized in that the following steps are performed:

[0029] Step 1: On the same circumference of the top surface of the female mold base plate 4, four female molds 11 are arranged at equal intervals of 90 degrees. On the same circumference of the bottom surface of the male mold base plate 3, four male molds 10 are arranged at equal intervals of 90 degrees. When the male mold base plate 3 falls onto the female mold base plate 4, the female molds 11 and the male molds 10 are closed together.

[0030] Step 2: On the circumference of the four female molds 11, four male mold lubricating sleeves 13 are arranged at equal intervals of 90 degrees, so that each male mold lubricating sleeve 13 is spaced 30 degrees from the female mold 10 on one side and 60 degrees from the female mold 11 on the other side;

[0031] Step 3: On the circumference of the four male molds 10, four female mold lubricating plungers 12 are arranged at equal intervals of 90 degrees, so that each female mold lubricating plunger 12 is spaced 60 degrees from the male mold 12 on one side and 30 degrees from the male mold 12 on the other side;

[0032] The mold system works in the following steps:

[0033] Step 4: By controlling the hydraulic cylinder 2, the top base plate 3 of the male mold is dropped onto the bottom base plate 4 of the female mold. The four male molds 10 are correspondingly closed together with the four female molds 11. On one side of each closed male and female mold, a female mold lubricating plunger 13 is provided at an interval of 30 degrees of arc. On the other side of each closed male and female mold, a male mold lubricating sleeve 12 is provided at an interval of 30 degrees of arc. Then, the capsule injection molding begins.

[0034] Step 5: After the capsule is injection molded, the top substrate 3 of the male mold is raised by controlling the hydraulic cylinder 2, and the capsule is demoulded;

[0035] Step 6. Rotate the cylindrical rotating table 5 30 degrees clockwise. Then, by controlling the hydraulic cylinder 2, the top base plate 3 of the male mold falls onto the bottom base plate 4 of the female mold. The four male molds 10 are correspondingly inserted into the four male mold lubricating sleeves 13, and the four female mold lubricating plungers 12 are correspondingly inserted into the four female molds 11 to achieve simultaneous lubrication of the male mold 10 and the female mold 13. Lubricating oil is provided on the female mold lubricating plunger 12, and lubricating oil is provided in the male mold lubricating sleeve 13.

[0036] Step 7. After lubrication, the top substrate 3 of the male mold is raised by controlling the hydraulic cylinder 2, and the cylindrical rotating table 5 is controlled to rotate 30 degrees counterclockwise to return the bottom substrate 4 of the female mold to its original working position. The hydraulic cylinder 2 controls the top substrate 3 of the male mold to fall again, and the capsule injection molding process after the second mold closing is carried out.

[0037] A horizontal gear ring 7 is fixedly installed on the outer vertical surface of the cylindrical turntable 5, and a rack-driven linear motor 9 is installed on the turntable support base 6 on one side of the cylindrical turntable 5. A rack 8 is connected to the rack-driven linear motor 9, and the rack 8 is meshed with the horizontal gear ring 7; the rack-driven linear motor 9 realizes the rotation of the cylindrical turntable 5 by controlling the movement of the rack 8.

Claims

1. A method for operating a capsule hot injection mold system with a lubricating function, comprising a gantry (1), a cylindrical rotating platform (5) being arranged directly below the gantry (1), a female mold bottom base plate (4) being fixedly arranged on the cylindrical rotating platform (5), a female mold (11) and a male mold lubricating cylinder (13) being arranged on the same circumference of the top surface of the female mold bottom base plate (4), a hydraulic oil cylinder (2) being fixedly suspended on the lower bottom surface of the gantry (1) beam directly above the female mold bottom base plate (4), a male mold top base plate (3) being connected to the downwardly extending output shaft of the hydraulic oil cylinder (2), a male mold (10) and a female mold lubricating plunger (12) being arranged on the same circumference of the lower bottom surface of the male mold top base plate (3), and four female molds ( 11); on the same circumference of the lower bottom surface of the male mold top substrate (3), four male molds (10) are arranged at equal intervals of 90 degrees of arc; when the male mold top substrate (3) falls onto the female mold bottom substrate (4), the female mold (11) and the male mold (10) are to be correspondingly molded together; on the circumference where the four female molds (11) are located, four male mold lubricating sleeves (13) are arranged at equal intervals of 90 degrees of arc, so that each male mold lubricating sleeve (13) is spaced 30 degrees of arc from the female mold (10) on one side and 60 degrees of arc from the female mold (11) on the other side; on the circumference where the four male molds (10) are located, four female mold lubricating plungers (12) are arranged at equal intervals of 90 degrees of arc, so that each female mold lubricating plunger (12) is spaced 60 degrees of arc from the male mold (12) on one side and 30 degrees of arc from the male mold (12) on the other side; it is characterized in that The mold system works in the following steps: The first step is to control the hydraulic cylinder (2) to make the top base plate (3) of the male mold fall onto the bottom base plate (4) of the female mold, and the four male molds (10) are correspondingly molded together with the four female molds (11). On one side of each of the male and female molds, a female mold lubricating plunger (13) is provided at an interval of 30 degrees of arc, and on the other side of each of the male and female molds, a male mold lubricating sleeve (12) is provided at an interval of 30 degrees of arc, and then, the capsule is started to be injected; In the second step, after the capsule is injection molded, the top substrate (3) of the male mold is raised by controlling the hydraulic cylinder (2) and the capsule is demoulded; Step 3: Rotate the cylindrical rotating table (5) 30 degrees clockwise, then control the hydraulic cylinder (2) to make the top base plate (3) of the male mold fall onto the bottom base plate (4) of the female mold, and the four male molds (10) are correspondingly inserted into the four male mold lubricating sleeves (13), and the four female mold lubricating plungers (12) are correspondingly inserted into the four female molds (11), thereby achieving simultaneous lubrication of the male mold (10) and the female mold (13); Step 4: After lubrication is completed, the top substrate (3) of the male mold is raised by controlling the hydraulic cylinder (2), and the cylindrical rotating table (5) is controlled to rotate 30 degrees counterclockwise to return the bottom substrate (4) of the female mold to the original working position. The hydraulic cylinder (2) controls the top substrate (3) of the male mold to fall again, and the capsule injection molding process after the second mold closing is carried out.

2. The method for operating a capsule hot injection mold system with lubrication function according to claim 1, characterized in that: A horizontal gear ring (7) is fixedly provided on the outer vertical surface of the cylindrical rotating table (5), a rack-driven linear motor (9) is provided on the rotating table support base (6) on one side of the cylindrical rotating table (5), a rack (8) is connected to the rack-driven linear motor (9), and the rack (8) is meshed with the horizontal gear ring (7); the rack-driven linear motor (9) realizes the rotation of the cylindrical rotating table (5) by controlling the movement of the rack (8).

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