Single closed manipulator injection molding machine

Abstract

The utility model discloses a single closed manipulator injection molding machine, which comprises a machine frame, a positioning device and an injection molding device, the positioning device and the injection molding device are arranged on the machine frame, the positioning device is adjacent to the injection molding device, the positioning device comprises a positioning support, a detection swing rod and a belt passing base, the positioning support is installed on the machine frame, and the belt passing base is installed on the positioning support. The middle of the detection swing rod is rotatably installed on the positioning support and located above the tape passing base, one end of the detection swing rod makes contact with zipper teeth of the zipper tape, an anti-friction component is arranged at the end of the detection swing rod, and the detection swing rod makes contact with the zipper teeth through the anti-friction component. According to the utility model, through the synergistic effect of the detection swing rod and the antifriction component, accurate positioning and low-friction detection of the zipper tape are realized, so that the operation precision, the production efficiency and the durability of the component of the injection molding machine are improved, and meanwhile, the wear and maintenance requirements are reduced.

Description

Technical Field

[0001] This utility model relates to an injection molding machine, and more specifically to a single closed-end robotic injection molding machine. Background Technology

[0002] Currently available single-unit double-opening injection molding machines include a frame and a front pull belt device, an injection device, and a rear pull belt device arranged sequentially on the frame. The zipper tape is pulled out from the front pull belt device, injected by the injection device, and then output through the rear pull belt device, thus achieving the upper and lower stop injection molding of the zipper tape. To ensure the accuracy of the injection position of the injection device, existing injection molding machines have a positioning device before the zipper tape enters the injection device to detect the position of the notch on the zipper tape. After detecting the position, the injection device performs the injection molding process. The existing positioning device mainly uses a detection hook that can be inserted into the notch of the zipper tape. A sensor detects whether the detection hook is inserted into the notch to locate the position of the zipper tape notch. However, because the detection hook needs to be inserted into the notch during the above detection process, jamming problems can easily occur when the zipper tape is moving at high speeds. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a single-unit closed-loop robotic injection molding machine. By improving the positioning and injection devices, it solves the problems of inaccurate zipper positioning, high friction, and low sprue processing efficiency, thereby improving injection precision and production efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a single-unit closed-loop robotic injection molding machine, comprising a frame and a positioning device and an injection device mounted on the frame. The positioning device is adjacent to the injection device and includes a positioning bracket, a detection swing rod, and a belt feed base. The positioning bracket is mounted on the frame, and the belt feed base is mounted on the positioning bracket. The middle part of the detection swing rod is rotatably mounted on the positioning bracket and is located above the belt feed base. One end of the detection swing rod contacts the chain teeth of the zipper belt. The detection swing rod is provided with a friction-reducing component at this end, which contacts the chain teeth through the friction-reducing component.

[0005] As a further improvement of this utility model, the friction-reducing component consists of several rollers, which are rotatably mounted on the end of the detection lever and contact the chain teeth through the wheel surface.

[0006] As a further improvement of this utility model, a chain tooth sensor is also provided at the end of the zipper base facing the injection molding device to detect the chain teeth on the zipper tape.

[0007] As a further improvement of this utility model, a positioning cylinder is also fixed on the positioning bracket. The cylinder body of the positioning cylinder is fixed on the positioning bracket, and a gantry-shaped positioning block is fixed on the push rod. The positioning block is driven down by the positioning cylinder and its end abuts against the chain teeth of the zipper belt to position the zipper belt.

[0008] As a further improvement of this utility model, the injection molding device includes an injection molding mechanism, a sprue clamping robot, and a waste discharge port. The waste discharge port is installed on the frame near the injection molding mechanism, and the sprue clamping robot is positioned above the waste discharge port to clamp the sprue on the injection molding mechanism and throw it into the waste discharge port.

[0009] As a further improvement of this utility model, the sprue clamping robot includes a clamp head and a clamp body. The clamp body is installed above the waste discharge port, and the clamp head is slidably mounted on the clamp body to move back and forth between the injection molding mechanism and the waste discharge port. The clamp head is composed of a driving component and two clamping plates. The driving component drives the two clamping plates to move closer or further apart from each other. A wedge-shaped surface is provided on the opposite side of each of the two clamping plates.

[0010] As a further improvement of this utility model, both clamps are provided with discharge nozzles.

[0011] As a further improvement of this utility model, an arc-shaped tape passage groove is provided at one end of the tape passage base facing away from the injection molding device, and the arc-shaped middle part of the tape passage groove is concave towards the middle part of the tape passage base.

[0012] As a further improvement of this utility model, the belt feed groove is provided on the upper side of the end of the belt feed base, and the groove surface of the belt feed groove is inclined downward toward the end of the belt feed base and has a rounded transition.

[0013] The beneficial effects of this invention are as follows: Through the detection lever and friction-reducing components in the positioning device, precise detection and low-friction contact of the zipper tape are achieved, effectively solving the problems of inaccurate positioning and zipper tooth wear in the prior art, thus improving injection molding quality and equipment lifespan. The friction-reducing components adopt a roller design, further reducing frictional resistance; the zipper tooth sensor enhances detection reliability; the positioning cylinder achieves automated positioning, improving efficiency; the sprue-clamping robot automatically handles the sprue, reducing manual intervention and improving production efficiency; the design of the zipper groove optimizes the guidance of the zipper tape, reducing tape jamming. Overall, this invention has a reasonable structure, is easy to operate, and is suitable for high-speed production environments. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of a single closed-end robotic injection molding machine according to this utility model;

[0015] Figure 2 for Figure 1 Overall structural diagram of the positioning device;

[0016] Figure 3 for Figure 1 Overall structural diagram of the manipulator with central clamping nozzle. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0018] Reference Figure 1 and Figure 2 As shown, the single-unit closed-loop robotic injection molding machine of this embodiment includes a frame 1, a positioning device 2 and an injection molding device 3 mounted on the frame 1. The positioning device 2 is adjacent to the injection molding device 3. The positioning device 2 includes a positioning bracket 21, a detection swing rod 22 and a conveyor belt base 23. The positioning bracket 21 is mounted on the frame 1, the conveyor belt base 23 is mounted on the positioning bracket 21, and the middle part of the detection swing rod 22 is rotatably mounted on the positioning bracket 21 and is located above the conveyor belt base 23. One end of the detection swing rod 22 is in contact with the zipper teeth, and a friction-reducing component 26 is provided on this end of the detection swing rod 22, which contacts the zipper teeth. When the zipper tape passes the base 23, the detection lever 22 gently contacts the zipper teeth through the friction-reducing component 26 to detect the position in real time, reducing friction and wear. During the detection process, the presence or absence of zipper teeth supports the end of the detection lever 22, causing it to swing up and down. By setting up a sensor to identify whether the detection lever 22 is swinging, the detection of missing zipper teeth can be achieved, ensuring that the zipper tape is accurately positioned before injection molding. This solves the problems of injection molding defects and low efficiency caused by inaccurate positioning in the background technology.

[0019] Furthermore, refer to Figure 2 As shown, the friction-reducing component consists of several rollers, which are rotatably mounted on the end of the detection lever 22. The rollers contact the chain teeth through their surfaces. This roller design transforms the contact point into rolling friction, significantly reducing the coefficient of friction, preventing chain tooth damage, and improving equipment durability and production continuity.

[0020] Furthermore, refer to Figure 2 As shown, a zipper tooth sensor 24 is also provided at the end of the zipper base 23 facing the injection molding device 3 to detect the zipper teeth on the zipper tape. The zipper tooth sensor 24 can accurately detect the presence and position of the zipper teeth and provide electrical signal feedback. In this way, it can be combined with the detection swing arm 22 to achieve dual detection, further ensuring that the detected zipper tooth gap position is more accurate.

[0021] Furthermore, refer to Figure 2As shown, a positioning cylinder 25 is also fixed on the positioning bracket 21. The cylinder body of the positioning cylinder 25 is fixed on the positioning bracket 21, and a gantry-shaped positioning block 27 is fixed on the push rod. The positioning block 27 is driven down by the positioning cylinder 25 and its end abuts against the chain teeth of the zipper belt to position the zipper belt. The positioning cylinder 25 drives the positioning block 27 to press down quickly, fixing the position of the zipper belt, realizing automated positioning, and improving production rhythm and accuracy.

[0022] Furthermore, refer to Figure 1 and Figure 3 As shown, the injection molding device 3 includes an injection molding mechanism 31, a sprue clamping robot 32, and a waste discharge port 33. The waste discharge port 33 is installed on the frame 1 near the injection molding mechanism 31. The sprue clamping robot 32 is positioned above the waste discharge port 33 to clamp the sprue from the injection molding mechanism 31 and discard it into the waste discharge port 33. The sprue clamping robot 32 automatically grabs the sprue waste after injection molding and discards it into the waste discharge port 33, achieving automatic waste removal, reducing manual operation, and improving efficiency.

[0023] Furthermore, refer to Figure 3 As shown, the sprue clamping robot 32 includes a chuck 321 and a clamping body 322. The clamping body 322 is mounted above the waste discharge port 33. The chuck 321 is slidably mounted on the clamping body 322 to move back and forth between the injection molding mechanism 31 and the waste discharge port 33. The chuck 321 consists of a drive component and two clamping plates. The drive component drives the two clamping plates to move closer or further apart. Each clamping plate has a wedge-shaped surface on its opposite side. The wedge-shaped surface design facilitates the formation of a cutting structure, enabling the sprue to be cut off from the injection molding mechanism 31. The drive component ensures smooth clamping and releasing actions, improving gripping reliability.

[0024] Furthermore, refer to Figure 3 As shown, both clamps are equipped with discharge air nozzles. The discharge air nozzles use airflow to assist in discharge, prevent sprue sticking, ensure complete discharge of waste, and keep the equipment clean.

[0025] Furthermore, refer to Figure 2 As shown, the tape guide base 23 has an arc-shaped tape guide groove 4 at one end facing away from the injection molding device 3, with the arc-shaped middle part of the tape guide groove 4 concave towards the middle of the tape guide base 23. The arc-shaped structure of the tape guide groove 4 guides the zipper tape to enter smoothly, reducing resistance and ensuring stable transmission, thus preventing tape jamming or deviation.

[0026] Furthermore, refer to Figure 2 As shown, the zipper tape groove 4 is located on the upper side of the end of the zipper tape base 23. The groove surface of the zipper tape groove 4 slopes downward toward the end of the zipper tape base 23 and has a rounded transition. The sloped and rounded transition design further optimizes the guidance of the zipper tape, ensuring smooth passage and reducing production interruptions.

[0027] In summary, this invention achieves high-precision positioning and low-friction operation of the zipper belt through the combination of the detection swing arm and the friction-reducing components, significantly improving injection molding quality and production efficiency. Furthermore, subsequent improvements have enhanced the degree of automation and reliability, making it suitable for modern production lines.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A single-unit closed-end robotic injection molding machine, comprising a frame (1), a positioning device (2) mounted on the frame (1), and an injection molding device (3), wherein the positioning device (2) is adjacent to the injection molding device (3), characterized in that: The positioning device (2) includes a positioning bracket (21), a detection swing rod (22), and a belt feed base (23). The positioning bracket (21) is mounted on the frame (1), and the belt feed base (23) is mounted on the positioning bracket (21). The middle part of the detection swing rod (22) is rotatably mounted on the positioning bracket (21) and is located above the belt feed base (23). One end of the swing rod is in contact with the chain teeth of the zipper belt. The detection swing rod (22) is provided with a friction-reducing component (26) at this end, and the friction-reducing component (26) contacts the chain teeth.

2. The single-unit closed-end robotic injection molding machine according to claim 1, characterized in that: The friction-reducing component consists of several rollers, which are rotatably mounted on the end of the detection lever (22) and contact the chain teeth through the wheel surface.

3. The single-unit closed-end robotic injection molding machine according to claim 1 or 2, characterized in that: The zipper base (23) is also provided with a zipper tooth sensor (24) at one end facing the injection molding device (3) to detect the zipper teeth on the zipper tape.

4. The single-unit closed-end robotic injection molding machine according to claim 1 or 2, characterized in that: A positioning cylinder (25) is also fixed on the positioning bracket (21). The cylinder body of the positioning cylinder (25) is fixed on the positioning bracket (21), and a gantry-shaped positioning block (27) is fixed on the push rod. The positioning block (27) is driven down by the positioning cylinder (25) and its end abuts against the chain teeth of the zipper belt to position the zipper belt.

5. The single-unit closed-end robotic injection molding machine according to claim 1 or 2, characterized in that: The injection molding device (3) includes an injection molding mechanism (31), a sprue clamping robot (32), and a waste discharge port (33). The waste discharge port (33) is positioned on the frame (1) near the injection molding mechanism (31). The sprue clamping robot (32) is positioned above the waste discharge port (33) to clamp the sprue on the injection molding mechanism (31) and throw it into the waste discharge port (33).

6. The single-unit closed-end robotic injection molding machine according to claim 5, characterized in that: The sprue clamping robot (32) includes a clamp (321) and a clamp body (322). The clamp body (322) is installed above the waste discharge port (33). The clamp (321) is slidably mounted on the clamp body (322) to move back and forth between the injection molding mechanism (31) and the waste discharge port (33). The clamp (321) is composed of a driving component and two clamping plates. The driving component drives the two clamping plates to move closer or further apart. A wedge-shaped surface is provided on the opposite side of the two clamping plates.

7. The single-unit closed-end robotic injection molding machine according to claim 6, characterized in that: Both clamps are equipped with discharge nozzles.

8. The single-unit closed-end robotic injection molding machine according to claim 1 or 2, characterized in that: The tape feed base (23) has an arc-shaped tape feed groove (4) at one end facing away from the injection molding device (3), and the arc-shaped middle part of the tape feed groove (4) is recessed towards the middle part of the tape feed base (23).

9. The single-unit closed-end robotic injection molding machine according to claim 8, characterized in that: The belt groove (4) is provided on the upper side of the end of the belt base (23). The groove surface of the belt groove (4) is inclined downward toward the end of the belt base (23) and has a rounded transition.

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