Injection mold strip material pulling machine

Abstract

The utility model belongs to injection molding production technical field especially relates to injection mold area material pulling machine, including with injection mold ejector plate connection's bottom support, be provided with area material conveying board on bottom support, and be connected through the left support plate and right support plate of vertical between bottom support and area material conveying board, and the common rotation of left support plate and right support plate is connected with area material main shaft, and is fixed with area material gear on area material main shaft, be provided with several columns area material belt sliding slot on area material conveying board upper surface, and gear slot is set up from area material belt sliding slot to area material conveying board bottom surface, and area material gear upper part is located in gear slot, and bottom support and injection mold ejector plate synchronous lifting, the utility model provides injection mold area material pulling machine whole structure is reasonable compact, is convenient for with injection mold fixed connection, realizes the " accurate feeding " and " action synchronization " in the multi -hole site multi -area material injection molding scene, and it is efficient with injection mold cooperation, realizes the synchronous feeding of multi -column area material, and is conveyed to injection mold and is synchronous injection.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding production technology, and specifically relates to a material feeding machine for injection molds. Background Technology

[0002] In the field of plastic injection molding, for a type of continuous material hardware electronic product connector, its production requires the material to be transported to multiple cavity of the mold by a material strip to complete the injection molding. A mold can produce more than a dozen products. The key premise of this process is that the hardware inserts must be positioned synchronously and with high precision to each cavity of the mold in order to ensure the stability of injection molding and the product yield.

[0003] Therefore, a special automatic material feeding machine for injection molds was designed and developed. By precisely controlling the signals of the feeding machine and the injection molding machine to synchronize in real time, it can effectively overcome the two core problems of "precise feeding" and "synchronous action" in multi-cavity and multi-material injection molding scenarios. At the same time, the design of a multi-row material conveying mechanism can also effectively improve process efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a material feeding machine for injection molds, thereby solving the problems mentioned in the background art.

[0005] To achieve the above-mentioned technical objectives, the solution adopted by this utility model is as follows: The injection mold material feeding machine includes a base support connected to the ejector plate of the injection mold, and a feeding conveyor plate is provided on the base support. The two are parallel and have a longitudinal gap in between. The base and the material conveying plate are connected by a vertical left support plate and a right support plate. A horizontal space is provided between the left support plate and the right support plate. A horizontally placed material conveying main shaft is rotatably connected to the left support plate and the right support plate. A material conveying gear is fixedly connected to the material conveying main shaft. The upper surface of the material conveying plate is provided with several rows of recessed material strip grooves, and a gear groove that runs vertically through the material strip grooves to the bottom surface of the material conveying plate is provided. The upper part of the material pulling gear is located in the gear groove, and the top of the material pulling gear protrudes above the bottom surface of the material strip groove. The base support rises and falls synchronously with the ejector plate of the injection mold.

[0006] Furthermore, the number of the material strip grooves, the gear grooves, and the pulling gears are set in a "1:1:1" ratio, and the number of the material strip grooves is ≥2 columns, with all material strip grooves arranged in parallel at the same height.

[0007] Furthermore, the material pulling gear includes a vertically placed central circular plate, and the outer circle of the central circular plate is uniformly surrounded by teeth. The included angle α between adjacent teeth is 6° to 24°, and the top height of the outer circle of the central circular plate is not higher than the bottom surface of the material strip groove.

[0008] Furthermore, the central circular plate is coaxially sleeved around the outer periphery of the material pulling main shaft via a fixing ring assembly. The fixing ring assembly includes a first fixing ring and a second fixing ring arranged in pairs, with the central circular plate sandwiched between the two. The first fixing ring and the second fixing ring are connected by screws that pass through the central circular plate. Either the first fixing ring or the second fixing ring is fixed to the material pulling main shaft by a set screw.

[0009] Furthermore, the two ends of the material pulling spindle extend outward from the outer sides of the left and right support plates, respectively. One of the extended ends is connected to an adjusting handwheel, while the other extended end is connected to a drive motor via a synchronous pulley and synchronous belt assembly.

[0010] Furthermore, one side of the material conveying plate is used to dock with the injection molding machine mold, and a guide plate is connected to the opposite side of this side. The upper surface of the guide plate is flush with the bottom surface of the material strip groove.

[0011] Furthermore, both the central circular plate and the fixing ring assembly are located between the left support plate and the right support plate.

[0012] Furthermore, the drive motor is fixed on the right support plate, and the drive shaft of the drive motor and the material pulling main shaft are each fixed with a synchronous pulley, and the two synchronous pulleys are connected by a synchronous belt drive.

[0013] Furthermore, the drive motor is a servo motor, and its drive control system is connected to the microcomputer inside the injection molding machine.

[0014] Furthermore, the guide plate is provided with upward-folding baffles on both sides along the feeding direction, and the end of the guide plate away from the material conveying plate is provided with a downward-sloping arc.

[0015] Furthermore, the longitudinal and transverse spacing spaces overlap to form a cavity to accommodate the material pulling spindle, the material pulling gear, and the fixing ring assembly.

[0016] Furthermore, the left support plate and the right support plate are respectively connected to the material pulling spindle via bearings.

[0017] The main beneficial effects of adopting the above technical solution are as follows: The injection mold material feeding machine provided by this utility model has a reasonable and compact overall structure, which makes it easy to fix and connect with the injection mold. It realizes "precise feeding" and "synchronous action" in multi-cavity and multi-material injection molding scenarios. It works efficiently with the injection mold to realize the synchronous feeding of multiple material strips and deliver them to the injection mold for synchronous injection, which has a high process efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is an exploded structural diagram of the present invention; Figure 4 This is a top view of the structure of this utility model; Figure 5 This is a side view of the structure of this utility model. Figure 1 ; Figure 6 This is a side view of the structure of this utility model. Figure 2 ; Figure 7 This is a schematic diagram of the material pulling gear in this utility model; Figure 8 This is a schematic diagram showing the connection between the material pulling spindle and the material pulling gear in this utility model; In the diagram: 1. Base support; 2. Material conveyor plate; 2a. Material belt chute; 2b. Gear groove; 3. Left support plate; 4. Right support plate; 5. Material pulling spindle; 6. Material pulling gear; 6a. Center circular plate; 6b. Gear; 7. Fixing ring assembly; 7a. First fixing ring; 7b. Second fixing ring; 8. Adjusting handwheel; 9. Drive motor; 10. Guide plate; 10a. Baffle; 10b. Circular arc ramp; 11. Bearing. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "lateral", "longitudinal", etc., used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0020] Please refer to the following: Figures 1 to 8The injection mold material feeding machine includes a base 1 connected to the ejector plate of the injection mold. A feeding conveyor plate 2 is provided on the base 1. The two are parallel and have a longitudinal gap in the middle. One side of the feeding conveyor plate 2 is used to connect to the injection mold. The base 1 and the feeding conveyor plate 2 are connected by a vertical left support plate 3 and a right support plate 4. A transverse gap is provided between the left support plate 3 and the right support plate 4. A horizontal feeding spindle 5 is rotatably connected to the left support plate 3 and the right support plate 4. A feeding gear 6 is fixed on the feeding spindle 5. The feeding spindle 5 and the feeding gear 6 are driven by a motor to rotate synchronously.

[0021] Several rows of recessed material belt grooves 2a are provided on the upper surface of the material conveying plate 2. A gear groove 2b that runs vertically from the material belt groove 2a to the bottom surface of the material conveying plate 2 is provided. The upper part of the material pulling gear 6 is located in the gear groove 2b and the top of the material pulling gear 6 protrudes above the bottom surface of the material belt groove 2a. Through the above arrangement, the top teeth of the material pulling gear 6 can rotate and contact with the material belt in the material belt groove 2a.

[0022] In this specific embodiment, the number of material strip grooves 2a, gear grooves 2b and pulling gears 6 are set in a ratio of "1:1:1". The number of material strip grooves 2a is ≥2 rows and all material strip grooves 2a are set in parallel and at the same height, so as to realize the synchronous feeding of multiple rows of material strips and effectively improve the efficiency of the injection molding process.

[0023] To accommodate the material belt, the pulling gear 6 includes a vertically placed central circular plate 6a, with teeth 6b evenly arranged around the outer circumference of the central circular plate 6a, in conjunction with... Figure 7 As shown, the included angle α between adjacent teeth 6b is 6° to 24°. The height of the top of the outer circle of the central circular plate 6a is not higher than the bottom surface of the material belt chute 2a. When the material belt with linearly arranged step holes enters the material belt chute 2a, the pulling gear 6 is controlled to rotate, and the teeth 6b on it are inserted into the step holes on the material belt one by one, realizing the pulling and conveying of material in the material belt chute 2a.

[0024] Specifically, the left support plate 3 and the right support plate 4 are connected to the material pulling spindle 5 via bearings 11. The two ends of the material pulling spindle 5 extend beyond the outer surfaces of the left support plate 3 and the right support plate 4, respectively. One end is connected to an adjusting handwheel 8, while the other end is connected to a drive motor 9 via a synchronous pulley and belt assembly. The adjusting handwheel 8 is used for equipment debugging. The drive motor 9 is fixed to the right support plate 4. The drive shaft of the drive motor 9 and the material pulling spindle 5 are each fixedly connected to a synchronous pulley, which are connected by a synchronous belt. The drive motor 9 is a servo motor, model: Panasonic MSMF012L1U2M (A6 version 100W), and the servo motor driver is model: Panasonic MADLT05SF (A6 version 100W). Its drive control system interfaces with the injection molding machine's internal microcomputer, using movement pulse signals to determine if the material strip is in position, quickly correcting errors to ensure the material accurately reaches the required injection position.

[0025] Combination Figure 8 As shown, the central circular plate 6a is coaxially sleeved around the outer periphery of the material pulling main shaft 5 via a fixing ring group 7. The fixing ring group 7 includes a pair of first fixing rings 7a and second fixing rings 7b, with the central circular plate 6a sandwiched between them. The first fixing rings 7a and second fixing rings 7b are connected by screws that pass through the central circular plate 6a laterally. Either the first fixing ring 7a or the second fixing ring 7b is fixed to the material pulling main shaft 5 by a set screw. The set screw is perpendicular to the material pulling main shaft 5. The fixed connection is achieved by screwing the set screw into the first fixing ring 7a or the second fixing ring 7b and having its head end abut against the material pulling main shaft 5. Loosening the set screw can adjust the fixed position of the material pulling gear 6 on the material pulling main shaft 5. If the material pulling gear 6 comes into contact with the material pulling conveyor plate 2, friction or jamming will occur, affecting the operation of the device. In this design, the central circular plate 6a and the fixing ring group 7 are both located between the left support plate 3 and the right support plate 4. The longitudinal and transverse interval spaces overlap to form a cavity to accommodate the material pulling spindle 5, the material pulling gear 6 and the fixing ring group 7. The overall structure of the device is reasonable and compact, which facilitates fixed connection with the injection mold.

[0026] A further optimization involves connecting a guide plate 10 to the opposite side of the material conveyor plate 2 that connects to the injection molding machine mold. The upper surface of the guide plate 10 is flush with the bottom surface of the material strip chute 2a. Figure 2 As shown, the guide plate 10 is provided with upward-folding baffles 10a on both sides along the feeding direction, and a downward-sloping arc ramp 10b is provided at the end of the guide plate 10 away from the material conveying plate 2, so as to facilitate the smooth conveying of the material belt into the material belt chute 2a.

[0027] The working process of the injection mold material feeding machine provided by this utility model is as follows: The base 1 is connected and fixed to the ejector plate of the injection mold. The strip groove 2a corresponds one-to-one with the material groove on the injection mold. With the up and down movement of the ejector plate, the entire material feeding machine of the injection mold moves synchronously with the ejector plate of the injection mold. Specifically, the injection molding machine system is connected to the servo motor drive to transmit signals. The material feeding machine of the injection mold operates synchronously with the injection molding machine. The drive motor 9 drives multiple feeding gears 6 to rotate synchronously. The cleats 6b are inserted one by one into the linear array of step holes on the strip. After the strip is conveyed to the injection mold and reaches its position, the injection process begins. The upper mold moves down, and the entire material feeding machine of the injection mold moves down synchronously with the ejector plate. After the injection is completed, the upper mold resets, and the entire material feeding machine of the injection mold moves up synchronously with the ejector plate. The strip that has been injected continues to be conveyed forward, and a new strip is then conveyed to the injection mold. The above steps are repeated to complete the material feeding injection molding process. It is mainly used in the production of new energy vehicles and electronic connector products. Multi-row synchronous material feeding injection molding has high process efficiency.

[0028] It should be noted that in the present invention, the "connection" not specifically defined can be a fixed connection, a detachable connection, or an integral connection; those skilled in the art can make corresponding adjustments and changes according to the specific application.

[0029] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A material feeding machine for injection molds, characterized in that: Includes a base support (1) connected to the ejector plate of the injection mold, and a material conveying plate (2) is provided on the base support (1), the two are parallel and have a longitudinal gap in the middle; The base (1) and the material conveying plate (2) are connected by a vertical left support plate (3) and a right support plate (4). A material pulling spindle (5) is rotatably connected to the left support plate (3) and the right support plate (4). A material pulling gear (6) is fixedly connected to the material pulling spindle (5). The upper surface of the material conveying plate (2) is provided with several rows of recessed material strip grooves (2a), and a gear groove (2b) is provided from the material strip groove (2a) to the bottom surface of the material conveying plate (2). The upper part of the material pulling gear (6) is located in the gear groove (2b) and the top of the material pulling gear (6) protrudes above the bottom surface of the material strip groove (2a). The base support (1) rises and falls synchronously with the ejector plate of the injection mold.

2. The injection mold material feeding machine according to claim 1, characterized in that: The number of the material strip groove (2a), the gear groove (2b) and the material pulling gear (6) is set in a "1:1:1" ratio, the number of the material strip groove (2a) is ≥2 columns and all material strip grooves (2a) are set in parallel and at the same height.

3. The injection mold material feeding machine according to claim 1, characterized in that: The material pulling gear (6) includes a central circular plate (6a), and the outer circle of the central circular plate (6a) is uniformly surrounded by teeth (6b). The included angle α between adjacent teeth (6b) is 6° to 24°. The top height of the outer circle of the central circular plate (6a) is not higher than the bottom surface of the material strip groove (2a).

4. The injection mold material feeding machine according to claim 3, characterized in that: The central circular plate (6a) is coaxially sleeved around the material pulling spindle (5) by a fixing ring group (7). The fixing ring group (7) includes a pair of first fixing rings (7a) and second fixing rings (7b), with the central circular plate (6a) sandwiched between them. The first fixing ring (7a) and the second fixing ring (7b) are connected by screws that pass through the central circular plate (6a). Either the first fixing ring (7a) or the second fixing ring (7b) is fixed to the material pulling spindle (5) by a set screw.

5. The injection mold material feeding machine according to claim 1, characterized in that: The two ends of the material pulling spindle (5) extend out of the outer sides of the left support plate (3) and the right support plate (4) respectively in the length direction. One of the extended ends is connected to an adjusting handwheel (8), while the other extended end is connected to a drive motor (9) through a synchronous pulley and synchronous belt group.

6. The injection mold material feeding machine according to claim 1, characterized in that: One side of the material conveying plate (2) is used to dock with the injection molding machine mold, and the opposite side is connected to the guide plate (10). The upper surface of the guide plate (10) is flush with the bottom surface of the material strip groove (2a).

7. The injection mold material feeding machine according to claim 4, characterized in that: The central circular plate (6a) and the fixing ring group (7) are both located between the left support plate (3) and the right support plate (4).

8. The injection mold material feeding machine according to claim 5, characterized in that: The drive motor (9) is fixed on the right support plate (4). The drive shaft of the drive motor (9) and the material pulling main shaft (5) are respectively fixed with a synchronous pulley, and the two synchronous pulleys are connected by a synchronous belt drive.

9. The injection mold material feeding machine according to claim 6, characterized in that: The guide plate (10) is provided with upward-folding baffles (10a) on both sides along the feeding direction, and the guide plate (10) is provided with a downward-sloping arc slope (10b) at the end away from the material conveying plate (2).

10. The injection mold material feeding machine according to claim 8, characterized in that: The drive motor (9) is a servo motor.

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