Automatic discharging, rod cutting and material distributing device for eight-petal type mold

Abstract

The utility model provides an automatic discharging, rod cutting and material distributing device for an eight-petal type mold, the discharging, rod cutting and material distributing device is arranged on the outer side of a mold pouring machine, the discharging, rod cutting and material distributing device is connected with the mold pouring machine through a conveying belt, and the discharging, rod cutting and material distributing device comprises a material moving rotating arm, a rod cutting assembly, an annular transmission assembly and a material discharging and material distributing assembly; the discharging, rod cutting and material distributing device is arranged on the outer side of the mold injection molding machine in a direct transmission connection mode, so that an upper mold and a lower mold of a mold subjected to injection molding can be rapidly and directly separated, cooling and adhesion are prevented, rod cutting and material distributing are achieved at the same time, molds of different models are directly discharged in a separated mode, and the production efficiency is improved. And classification and subsequent silica gel injection molding are facilitated.

Description

Technical Field

[0001] This article belongs to the technical field of contact lens eight-lobed mold cutting, specifically involving an automatic material discharge cutting rod distribution device for an eight-lobed mold. Background Technology

[0002] During the production and processing of contact lenses, resin molds are used to shape the contact lenses, which facilitates the injection of silicone hydrogel into the resin mold for curing and shaping. The production of contact lens resin molds requires the use of injection molding machines for batch processing, and the molding process of contact lens resin molds also requires the use of molds to cure the resin, thereby enabling the resin mold to shape the contact lens raw materials.

[0003] To facilitate subsequent production processes such as molding, pattern transfer printing, and demolding, and to maximize the production of multiple materials of different sizes in a single injection molding process, injection molding is usually done in a petal-shaped manner. This means that the molded shape is distributed in a ring at equal intervals, with each mold having a different size, and the molds are connected by runners.

[0004] After injection molding, these molds need to be filled with silicone hydrogel for curing. Before the injection process, these molds of different models and degrees need to be distinguished in advance to facilitate the classification of these different models and prevent mixing.

[0005] However, most existing petal-shaped mold cutting processes use semi-automatic material dividers. The material is manually placed on the material divider, pressure cuts it, and then the corresponding mold is separated and the material is cut off. The mold and runner are removed. However, this method requires manual transfer to the cutting area after the mold is completed for injection molding, which greatly reduces production efficiency and increases labor costs. Utility Model Content

[0006] To address the aforementioned issues, this paper proposes an automatic material discharge and cutting device for an eight-petal mold. The device is located outside the mold casting machine and is connected via a conveyor belt. The device includes a material transfer arm, a cutting rod assembly, a ring transmission assembly, and a material discharge and distribution assembly. The cutting rod assembly is located on the outer left side of the conveyor belt, and the ring transmission assembly is located behind it. A material transfer arm is linked to the cutting rod assembly, the ring transmission assembly, and the inner left side of the conveyor belt. This material transfer arm rotates in conjunction with the eight-petal mold's gripping mechanism. A horizontal discharge chute is located at the front end of the ring transmission assembly, and its right end is connected to the ring transmission assembly. The front side of the discharge trough is equipped with a movable material distribution plate. The cutting rod assembly includes a rotating base, a fixed seat, a positioning column, a cutting rod, and a cutting rod rotating plate. The fixed seat is located on the outer side of the upper part of the rotating base, and several cutting rods are arranged in a ring at equal intervals on the inner side of the upper part of the rotating base. Each cutting rod has a cutting rod rotating plate at its top outer end. Several positioning seats are arranged in a ring on the top surface of the fixed seat. The cutting rods and positioning seats correspond one-to-one with each other. A material discharge cutting rod distribution device is directly connected to the outside of the mold injection molding machine, thereby enabling the direct and rapid removal of the runner rods from the completed injection mold, and simultaneously achieving material distribution and discharge. Different types of molds can be directly discharged and discharged, facilitating classification and subsequent silicone injection molding.

[0007] The mold casting machine is a horizontal, two-stage casting machine. A mold ejection arm is longitudinally mounted on the top of the machine door. A conveyor belt is horizontally mounted on the outside of the machine door, facing right. This conveyor belt is a sloped conveyor belt, a straight conveyor belt with a higher left end and a lower right end. The left end of the conveyor belt is flush with the bottom surface of the mold casting machine door, and the right end is flush with the top surface of the cutting rod assembly. By directly installing the conveyor belt and mold ejection arm on the outside of the mold casting machine, the mold, after casting, can be directly removed and transported via the conveyor belt to the material distribution and cutting device for mold opening, cutting, and material distribution. This achieves fully automated production, directly exporting material from mold injection and material distribution, completing rapid automated production.

[0008] The material transfer arm is a three-angle main shaft rotating arm. The main material arm extends outward from the outer side of the material transfer arm. The rotation center of the material transfer arm is equidistant from the left end of the conveyor belt, the cutting rod assembly, and the ring transmission assembly. The outer end of the main material arm is vertically equipped with a gripper. The gripper is vertically movable and located at the outer end of the main material arm. A single telescopic claw is provided on the outer side of the gripper, and a disc-type eight-claw buckle is provided at the bottom center of the gripper. The material transfer arm realizes two-stage mold material transfer, which can simultaneously grasp a single mold and an eight-petal mold arranged in a ring. The single mold is grasped by an independently telescopic single claw, and the middle flow channel claw directly grasps the middle flow channel of the eight-petal mold. Thus, the two-stage movement on the conveyor belt, the cutting rod assembly, and the ring transmission assembly can be realized simultaneously, which can effectively reduce the required gripper movement mechanism and achieve rapid linkage.

[0009] The rotating base is a circular chassis with a central shaft running vertically at its center. Around the central shaft, several cutting rods are arranged in a ring at equal intervals. Each cutting rod is a rectangular strip with a cutting blade extending upwards at its outer top surface. The outer edge of the cutting blade is horizontally aligned with the center of the positioning seat. A vertical moving cylinder is located on the bottom surface of the rotating base. The rotating base moves vertically up and down via the moving cylinder, thus linking the cutting rods and cutting blades to cut the flow channel rods of the eight-petal mold. It can also move downwards to remove the cut flow channel rods directly from the bottom.

[0010] The fixed base is shaped like an annular cylindrical base. The lower end of the fixed base passes through the rotating base and is fixedly connected to the bottom. Several fixed bases are arranged in an annular pattern on the top surface of the fixed base. The fixed base is shaped like an arc-topped cylindrical base. An eight-petal mold is sleeved on the upper part of the fixed base. Each of the eight-petal molds is provided with a cutting rod rotating piece at the connection between the mold and the flow channel rod. The fixed base is used to fix the molds between the rotating bases. The eight-petal molds are fixed and supported by the positioning pins, which facilitates the rotation of the cutting rod rotating piece to cut the rod.

[0011] The annular transmission assembly is a through-type annular transmission assembly. The top surface of the annular transmission assembly is provided with a conveying guide groove in the form of a ring. The front side of the conveying guide groove is connected to the discharge groove. The material is conveyed into the discharge groove through the annular conveying guide groove, ready for discharge and material distribution.

[0012] The discharge trough is a horizontally movable guide trough. The rear side of the middle of the discharge trough has an outlet opening along its edge. The rear side of the middle of the discharge trough has a longitudinally horizontally arranged material distribution plate. The material distribution plate is triangular in shape and has several material distribution slots equidistantly arranged on its surface. The material distribution plate is longitudinally moved to the front of the discharge trough. Through the discharge trough, automated direct pushing and displacement discharge is achieved, distinguishing each petal-shaped mold and ensuring that each row has the same model.

[0013] Beneficial effects:

[0014] The injection molding machine features a direct-connection material discharge and cutting device on its outer side. This allows for the rapid removal of runners from the finished injection mold, while simultaneously distributing and releasing materials. Different mold models are separated and discharged for easy categorization and subsequent silicone injection molding.

[0015] The material is transported by conveyor belt to the discharge cutting and distribution device for mold opening, cutting, and material distribution, thereby achieving fully automated production. The material is directly exported from the mold injection and distribution, completing rapid automated production.

[0016] The material transfer arm enables two-stage mold transfer, allowing simultaneous gripping of single molds and eight-petal molds arranged in a ring. The single mold is gripped by an independently telescopic single gripper, while the middle flow channel gripper directly grips the middle flow channel of the eight-petal mold. This two-stage movement is achieved simultaneously on the conveyor belt, cutting rod assembly, and ring transmission assembly, effectively reducing the required gripper movement mechanism and enabling rapid linkage.

[0017] The cutting rod and the cutting rod blade are linked by a rotating base to cut off the runner rod of the eight-lobed mold. It can also be moved downward to remove the runner rod directly from the bottom.

[0018] The mold is fixed between the rotating bases by a fixed seat, and the eight-petal mold is fixed and supported by the positioning column, which facilitates the rotation of the cutting rod and the cutting rod.

[0019] The material discharge channel enables automated direct push-displacement material discharge, distinguishing each petal-shaped mold and ensuring that each row has the same model. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an automatic material discharge and cutting device for an eight-lobed mold;

[0021] Figure 2 This is a schematic diagram of the cutting rod assembly of an automatic material discharge and cutting rod distribution device for an eight-lobed mold;

[0022] Figure 3 This is a partially enlarged schematic diagram of the cutting rod assembly of an automatic material discharge and cutting rod distribution device for an eight-lobed mold;

[0023] In the diagram: 1. Mold casting machine; 2. Ejection arm; 3. Conveyor belt; 4. Material transfer arm; 5. Cutting rod assembly; 51. Rotating base; 52. Fixed seat; 53. Positioning column; 54. Cutting rod; 55. Cutting rod rotating plate; 6. Circular transmission assembly; 7. Discharge chute; 8. Material distribution plate; 9. Eight-petal mold. Detailed Implementation

[0024] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0025] 1. Mold casting machine, 2. Extrusion arm, 3. Conveyor belt, 4. Material transfer rotating arm, 5. Cutting rod assembly, 51. Rotating base, 52. Fixed base, 53. Positioning column, 54. Cutting rod, 55. Cutting rod rotating plate, 6. Ring transmission assembly, 7. Discharge chute, 8. Material distribution plate, 9. Eight-petal mold.

[0026] like Figure 1 , 2 As shown in Figure 3;

[0027] An automatic material discharge and cutting device for an eight-petal mold is disclosed. The device is located outside a mold casting machine 1 and connected to the machine via a conveyor belt 3. The device includes a material transfer arm 4, a cutting rod assembly 5, a ring transmission assembly 6, and a material discharge and distribution assembly. The cutting rod assembly 5 is located on the outer left side of the conveyor belt 3, and the ring transmission assembly 6 is located on the rear side of the cutting rod assembly 5. The material transfer arm 4 is linked to the cutting rod assembly 5, the ring transmission assembly 6, and the inner left side of the conveyor belt 3. The material transfer arm 4 rotates in conjunction with the eight-petal mold 9. A horizontal discharge chute 7 is located at the front end of the ring transmission assembly 6. The right side of the discharge chute 7... The end-conducting type is interconnected with the annular transmission assembly 6. The front side of the discharge chute 7 is equipped with a movable material distribution plate 8. The cutting rod assembly 5 includes a rotating base 51, a fixed seat 52, a positioning column 53, a cutting rod 54, and a cutting rod rotating plate 55. The upper outer side of the rotating base 51 is provided with a fixed seat 52. The upper inner side of the rotating base 51 is provided with a plurality of cutting rods 54 arranged in an annular pattern at equal intervals. The top outer end of each cutting rod 54 is provided with a cutting rod rotating plate 55. The top surface of the fixed seat 52 is provided with a plurality of positioning seats in an annular pattern. The plurality of cutting rods 54 and the plurality of positioning seats correspond one-to-one with each other. The mold casting machine 1 is a horizontal double-stage casting machine. The top of the door of the mold casting machine 1 is provided with a longitudinally arranged mold ejection arm 2. A conveyor belt 3 is horizontally positioned to the right on the outside of the machine door. This conveyor belt 3 is a sloped conveyor belt, a straight conveyor belt with a higher left end and a lower right end. The left end of the conveyor belt 3 is flush with the bottom surface of the mold casting machine 1's door, and the right end is flush with the top surface of the cutting rod assembly 5. The material transfer arm 4 is a three-angle main shaft rotating arm. A main material arm extends from the outside of the material transfer arm 4. The rotation center of the material transfer arm 4 is equidistant from the left end of the conveyor belt 3, the cutting rod assembly 5, and the annular transmission assembly 6. A gripper is vertically positioned at the outer end of the main material arm, and the gripper is vertically movable. A single telescopic claw is located on the outer side of the gripper. The gripper has a disc-shaped eight-claw buckle at its bottom center. The rotating base 51 is a circular base with a central shaft vertically positioned at its center. A plurality of cutting rods 54 are arranged in a ring at equal intervals around the central shaft. Each cutting rod 54 is a rectangular strip. A cutting rod rotating piece 55 is obliquely positioned upwards at the outer end of the top surface of each cutting rod 54. The outer edge of the cutting rod rotating piece 55 is horizontally flush with the center of the positioning seat. The fixing seat 52 is an annular cylindrical seat. The lower end of the fixing seat 52 passes through the rotating base 51 and is fixedly connected to the bottom. A plurality of fixing seats 52 are arranged in a ring at equal intervals on the top surface of the fixing seat 52. Each fixing seat 52 is an arc-topped cylindrical seat. An eight-petal mold 9 is fitted onto the top of the fixing seat 52.Each of the eight-petal molds 9 has a cutting rod rotating piece 55 at the connection between the mold and the flow channel rod. The annular transmission assembly 6 is a through-type annular transmission assembly 6. The top surface of the annular transmission assembly 6 has a conveying guide groove in the form of a ring. The front side of the conveying guide groove is connected to the discharge groove 7. The discharge groove 7 is a transversely moving guide groove. The rear side of the middle of the discharge groove 7 has an outlet opening along its edge. The rear side of the middle of the discharge groove 7 has a longitudinally horizontally arranged material distribution plate 8. The material distribution plate 8 is in the shape of a triangular push plate. The surface of the material distribution plate 8 has several equidistant material distribution grooves. The material distribution plate 8 is longitudinally and horizontally arranged in front of the discharge groove 7.

[0028] Implementation example;

[0029] In use, after the mold casting machine 1 completes the casting of the eight-petal mold 9, the mold ejection arm 2 removes the eight-petal mold 9 and places it on the conveyor belt 3. The conveyor belt 3 moves the eight-petal mold 9 to the outside of the cutting rod assembly 5. The disc-type eight-claw buckle at the bottom of the transfer arm 4 moves the eight-petal mold 9 onto the cutting rod assembly 5. The rotating base 51 inside the cutting rod assembly 5 moves linearly and simultaneously rotates the linkage control cutting rod 54 and cutting rod rotating plate 55 to cut off the flow channel rod of the eight-petal mold 9 set on the positioning column 53 and the connection between each mold. The rotating base 51 moves down to cut off the flow channel rod of the eight-petal mold 9 and the connection between each mold. The flow channel rod is discharged downward from the middle of the fixed seat 52. Then, the independent single mold after the mold opening is completed is grasped by the single gripper through the transfer arm 4. Then, the single gripper unfolds to avoid the gap. The new eight-petal mold is placed on the positioning post 53 through the disc-type eight-claw buckle of the transfer arm 4. Then, the single gripper of the transfer arm 4 moves the eight single molds to the ring transmission assembly 6. The single mold moves to the discharge groove 7 through the ring-connected conveying guide groove. The single mold in the discharge groove 7 is separated by the material distribution plate 8 and then directly pushed out to complete the material distribution.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic material discharge and cutting device for an eight-lobed mold, wherein the material discharge and cutting device is located on the outside of the mold casting machine, and is connected to the mold casting machine via a conveyor belt, characterized in that... The material discharge cutting and distribution device includes a material transfer arm, a cutting rod assembly, a ring transmission assembly, and a material discharge and distribution assembly. The cutting rod assembly is located on the outer left side of the conveyor belt, and the ring transmission assembly is located on the rear side of the cutting rod assembly. A material transfer arm is linked to the cutting rod assembly, the ring transmission assembly, and the inner left side of the conveyor belt. The material transfer arm rotates in conjunction with the eight-petal mold gripping rotation. A discharge trough is horizontally located at the front end of the ring transmission assembly, and its right end is connected to the ring transmission assembly. A material distribution plate is movable on the front side of the discharge trough. The cutting rod assembly includes a rotating base, a fixed seat, positioning columns, a cutting rod, and a cutting rod rotating plate. A fixed seat is located on the outer upper side of the rotating base, and several cutting rods are arranged in a ring at equal intervals on the inner upper side of the rotating base. Each cutting rod has a cutting rod rotating plate at its top outer end. Several positioning seats are arranged in a ring on the top surface of the fixed seat, and each cutting rod corresponds to one of the positioning seats.

2. The automatic discharge cutting rod and material distribution device for an eight-lobed mold according to claim 1, characterized in that, The mold casting machine is a horizontal double-section casting machine. The top of the door of the mold casting machine is provided with a longitudinal demolding arm. A conveyor belt is provided horizontally to the right on the outside of the door of the mold casting machine. The conveyor belt is a sloped conveyor belt. The conveyor belt is a straight conveyor belt with the left end higher than the right end. The left end of the conveyor belt is flush with the bottom surface of the door of the mold casting machine, and the right end of the conveyor belt is flush with the top surface of the cutting rod assembly.

3. The automatic material discharge and cutting device for an eight-lobed mold according to claim 1, characterized in that, The material transfer arm is a three-angle main shaft rotating arm. The main material arm extends outward from the outer side of the material transfer arm. The rotation center of the material transfer arm is equidistant from the left end of the conveyor belt, the cutting rod assembly, and the ring transmission assembly. The outer end of the main material arm is vertically equipped with a gripper. The gripper is vertically movable and located at the outer end of the main material arm. A single telescopic claw is provided on the outer side of the gripper, and a disc-type eight-claw buckle is provided at the bottom center of the gripper.

4. The automatic material discharge and cutting device for an eight-lobed mold according to claim 1, characterized in that, The rotating base is a circular base with a central shaft vertically positioned at its center. A plurality of cutting rods are arranged equidistantly around the central shaft in a ring. Each cutting rod is a rectangular strip with a cutting blade extending upwards at its outer top surface. The outer edge of the cutting blade is horizontally aligned with the center of the positioning seat. A vertical moving cylinder is located on the bottom surface of the rotating base, allowing the base to move vertically up and down.

5. The automatic discharge cutting rod and material distribution device for an eight-lobed mold according to claim 1, characterized in that, The fixed seat is shaped like an annular cylindrical seat. The lower end of the fixed seat passes through the rotating base and is fixedly connected to the bottom. Several fixed seats are arranged in an annular equidistant pattern on the top surface of the fixed seat. The fixed seat is shaped like an arc-topped cylindrical seat. An eight-petal mold is provided on the upper part of the fixed seat. Each of the eight-petal molds is provided with a cutting rod rotating plate at the connection between the mold and the flow channel rod.

6. The automatic material discharge and cutting device for an eight-lobed mold according to claim 1, characterized in that, The ring transmission assembly is a through-type ring transmission assembly. The top surface of the ring transmission assembly is provided with a conveying guide groove in the form of a ring. The front side of the conveying guide groove is connected to the discharge groove.

7. The automatic material discharge and cutting device for an eight-lobed mold according to claim 1, characterized in that, The discharge trough is a horizontally movable guide trough. The rear side of the middle of the discharge trough has an outlet opening along its edge. The rear side of the middle of the discharge trough has a longitudinally horizontally arranged material distribution plate. The material distribution plate is triangular in shape and has several material distribution slots equidistantly arranged on its surface. The material distribution plate is longitudinally and horizontally arranged in front of the discharge trough.

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