Injection molding machine

Abstract

The present invention discloses an injection molding machine, wherein a conveyor belt, a manipulator, a chute and a telescopic rod are placed in a shell; the conveyor belt moves from front to back and passes directly below a release zone; the manipulator is used to carry the injection molded products to the release zone for release; the lower edge of a detection port opened on the front wall of the shell is located above the front end of the conveyor belt; the front end of the chute is hinged to the front wall of the shell at the lower edge of the detection port, and the middle part is connected to one end of the telescopic rod; the other end of the telescopic rod is connected to the front wall of the shell; a sample placement groove is provided below the detection port on the outside of the front wall of the shell; when the telescopic rod is in a fully extended state, the rear part of the chute is located between the release zone and the conveyor belt; when the telescopic rod is in a fully retracted state, the chute moves out directly below the release zone. With this injection molding machine, quality inspectors can directly conduct quality inspections on the injection molded products released by the manipulator of the injection molding machine, can promptly discover product quality problems, avoid the occurrence of large quantities of defective injection molded products, and are convenient for quality inspectors to take sampled injection molded products.

Description

Technical Field

[0001] The invention relates to a product quality automatic inspection technology, in particular to an injection molding machine. Background Art

[0002] During the injection molding process, in order to avoid large-scale defects, it is generally necessary to conduct regular quality inspections on products.

[0003] Finished injection molded products are typically removed from the mold by the machine's robotic arm and placed on a conveyor belt inside the machine. Quality inspectors can only inspect product quality at the end of the conveyor belt, which is not the latest product to be produced. If a defective product is found, the entire conveyor belt may be defective, especially in production environments where products are automatically boxed on the conveyor belt. Furthermore, quality inspectors manually time inspections according to the specified inspection frequency, making it easy for them to forget and miss inspections. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an injection molding machine, in which quality inspectors can directly perform quality inspections on the injection-molded products released by the injection molding machine robot, ensuring that the inspected products are the latest products currently produced, and timely discover product quality problems, thereby avoiding the occurrence of large quantities of defective injection-molded products, and making it convenient for quality inspectors to take sampled injection-molded products.

[0005] In order to solve the above technical problems, the present invention provides an injection molding machine, which includes a housing, a conveyor belt 7, a manipulator, a slide 4, a sample placement slot 6 and a telescopic rod 2;

[0006] The conveyor belt 7, the manipulator, the chute 4 and the telescopic rod 2 are placed in the housing;

[0007] The conveyor belt 7 moves from front to back and passes directly under the release area 8;

[0008] The manipulator is used to transport the injection molded products produced by the injection molding machine to the release area 8 for release;

[0009] A detection port is provided on the front wall of the housing at the front side of the conveyor belt 7;

[0010] The lower edge of the detection port is located above the front end of the conveyor belt 7;

[0011] The front end of the chute 4 is hinged to the front wall of the housing at the lower edge of the detection port, and the middle part is connected to one end of the telescopic rod 2;

[0012] The other end of the telescopic rod 2 is connected to the front wall of the housing;

[0013] The sample placement slot 6 is provided below the detection port on the front wall of the housing;

[0014] When the telescopic rod 2 is extended, the chute 4 rotates clockwise around the front end;

[0015] When the telescopic rod 2 is in the fully extended state, the rear portion of the chute 4 is located between the release area 8 and the conveyor belt 7. The injection molded product released from the release area 8 will fall onto the chute 4. The injection molded product that falls onto the chute 4 will slide along the chute 4 to the sample placement slot 6.

[0016] When the telescopic rod 2 is retracted, the chute 4 rotates counterclockwise around the front end;

[0017] When the telescopic rod 2 is in the fully retracted state, the chute 4 moves out from under the release area 8, and the injection molded product released from the release area 8 falls onto the conveyor belt 7;

[0018] α1<α2, α1 is the angle between the slide groove 4 and the horizontal plane when the telescopic rod 2 is in a fully extended state, and α2 is the angle between the slide groove 4 and the horizontal plane when the telescopic rod 2 is in a fully retracted state.

[0019] Preferably, the telescopic rod 2 is a pneumatic telescopic rod.

[0020] Preferably, a profile 1 is fixed to the inner side of the front wall of the shell;

[0021] The other end of the telescopic rod 2 is hinged to the front wall of the housing through the profile 1.

[0022] Preferably, a connecting plate 3 is fixed to the middle of the slide groove 4 , and one end of the telescopic rod 2 is hinged to the middle of the slide groove 4 through the connecting plate 3 .

[0023] Preferably, the front end of the slide groove 4 is hinged to the front wall of the shell at the lower edge of the detection port through a hinge 5.

[0024] Preferably, a bend is formed between the front portion and the middle portion of the chute 4;

[0025] The included angle between the front portion of the chute 4 and the horizontal plane is smaller than the included angle α between the middle portion and the rear portion of the chute 4 and the horizontal plane.

[0026] Preferably, α1 is 10 0 to 45 0 Between, α2 is 46 0 to 90 0 between.

[0027] Preferably, the injection molding machine further includes a control circuit and an external confirmation button;

[0028] The external confirmation button is arranged outside the housing;

[0029] When the external confirmation button is triggered, a detected signal is sent to the control circuit;

[0030] The control circuit includes a timer and a counter, and the initial values of the timer and the counter are 0;

[0031] The control circuit is connected to the manipulator and the telescopic rod driver signal;

[0032] When the control circuit receives the sampling detection request signal, it sends an extension control signal to the telescopic rod driver to drive the telescopic rod to extend until it is fully extended, and its timer starts timing;

[0033] The control circuit sends an extension control signal to drive the telescopic rod to extend to the fully extended state, and if it receives a product release signal sent by the manipulator, the counter automatically increases by 1;

[0034] The control circuit clears the counter to 0 after receiving the detected signal;

[0035] The control circuit sends a retraction control signal to the driver of the telescopic rod to drive the telescopic rod to retract until it is fully retracted, and resets the timer when the timer exceeds a set time and the value of the counter is 0;

[0036] Preferably, if the value of the counter is greater than 1, the control circuit outputs an emergency stop signal to control the injection molding machine to alarm and stop.

[0037] Preferably, the injection molding machine further includes an indicator light;

[0038] After the control circuit sends an extension control signal to drive the telescopic rod to extend to the fully extended state, if it receives a product release signal sent by the robot, the counter will increase by 1 and at the same time output a quality inspection prompt signal to control the lighting of the indicator light.

[0039] Preferably, the injection molding machine further comprises an external request button;

[0040] When the external request button is triggered, a sampling detection request signal is sent to the control circuit.

[0041] Preferably, the sampling detection request signal comes from a master control system.

[0042] Preferably, the master control system periodically sends a sampling detection request signal to the control circuit.

[0043] The injection molding machine of the present invention uses a telescopic rod 2 to adjust and control the state of the chute 4. The chute 4 is deployed when sampling and testing injection molded products, and is retracted during normal production. Quality inspectors can directly perform quality inspections on the injection molded products released by the injection molding machine's manipulator, ensuring that the inspected products are the latest products. This allows for timely detection of product quality issues and prevents the occurrence of large quantities of defective injection molded products. The sampled injection molded products are fixedly delivered to the sample placement slot 6 for easy access by quality inspectors. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 It is a schematic diagram of the telescopic rod of an injection molding machine according to an embodiment of the present invention during the extension process.

[0046] Description of Reference Numerals

[0047] 1. Profile; 2. Telescopic rod; 3. Connecting plate; 4. Slide; 5. Hinge; 6. Sample placement slot; 7. Conveyor belt; 8. Release area. DETAILED DESCRIPTION

[0048] The following is a clear and complete description of the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0049] Example 1

[0050] like Figure 1 As shown, the injection molding machine includes a housing, a conveyor belt 7, a manipulator, a slide 4, a sample placement slot 6 and a telescopic rod 2;

[0051] The conveyor belt 7, the manipulator, the chute 4 and the telescopic rod 2 are placed in the housing;

[0052] The conveyor belt 7 moves from front to back and passes directly under the release area 8;

[0053] The manipulator is used to transport the injection molded products produced by the injection molding machine to the release area 8 for release;

[0054] A detection port is provided on the front wall of the housing at the front side of the conveyor belt 7;

[0055] The lower edge of the detection port is located above the front end of the conveyor belt 7;

[0056] The front end of the chute 4 is hinged to the front wall of the housing at the lower edge of the detection port, and the middle part is connected to one end of the telescopic rod 2;

[0057] The other end of the telescopic rod 2 is connected to the front wall of the housing;

[0058] The sample placement slot 6 is provided below the detection port on the front wall of the housing;

[0059] When the telescopic rod 2 is extended, the chute 4 rotates clockwise around the front end;

[0060] When the telescopic rod 2 is in the fully extended state, the rear portion of the chute 4 is located between the release area 8 and the conveyor belt 7. The injection molded product released from the release area 8 will fall onto the chute 4. The injection molded product that falls onto the chute 4 will slide along the chute 4 to the sample placement slot 6.

[0061] When the telescopic rod 2 is retracted, the chute 4 rotates counterclockwise around the front end;

[0062] When the telescopic rod 2 is in the fully retracted state, the chute 4 moves out from under the release area 8, and the injection molded product released from the release area 8 falls onto the conveyor belt 7;

[0063] α1<α2, α1 is the angle between the slide groove 4 and the horizontal plane when the telescopic rod 2 is in a fully extended state, and α2 is the angle between the slide groove 4 and the horizontal plane when the telescopic rod 2 is in a fully retracted state.

[0064] In the injection molding machine of Example 1, the chute 4 for product quality sampling is integrally installed in the space above the front of the conveyor belt 7 in the injection molding machine housing. A detection port is opened on the front wall of the housing in front of the conveyor belt 7. The size of the detection port is adapted to the size of the injection molded products to ensure that the injection molded products can pass smoothly. The two ends of the telescopic rod 2 are connected to the middle of the chute 4 and the front wall of the housing respectively. When it is necessary to perform quality inspection on the injection molded product sampling, the telescopic rod 2 is extended to cause the chute 4 to rotate clockwise around the front end. The rear part of the chute 4 is located between the release area 8 and the conveyor belt 7. The injection molded products released from the release area 8 will fall onto the chute 4 and then slide into the sample placement slot 6. During normal production, the telescopic rod 2 is retracted to cause the chute 4 to rotate counterclockwise around the front end and shrink toward the front wall of the housing. The chute 4 moves out from directly below the release area 8. The injection molded products released from the release area 8 will fall onto the conveyor belt 7, without affecting the normal handling of the injection molded products to the conveyor belt 7 by the robot. The injection molding machine uses a telescopic rod 2 to adjust and control the state of the chute 4. The chute 4 is extended when sampling and testing injection molded products, and retracted during normal production. The quality inspector can directly perform quality inspection on the injection molded products released by the injection molding machine robot, ensuring that the inspected products are the latest products. Product quality problems can be discovered in a timely manner to avoid the occurrence of large quantities of defective injection molded products. The sampled injection molded products are fixedly delivered to the sample placement slot 6 for easy access by the quality inspector.

[0065] Example 2

[0066] Based on the injection molding machine of the first embodiment, the telescopic rod 2 is a pneumatic telescopic rod.

[0067] Preferably, a profile 1 is fixed to the inner side of the front wall of the shell;

[0068] The other end of the telescopic rod 2 is hinged to the front wall of the housing through the profile 1.

[0069] Preferably, a connecting plate 3 is fixed to the middle of the slide groove 4 , and one end of the telescopic rod 2 is hinged to the middle of the slide groove 4 through the connecting plate 3 .

[0070] Preferably, the front end of the slide groove 4 is hinged to the front wall of the shell at the lower edge of the detection port through a hinge 5.

[0071] Preferably, a bend is formed between the front portion and the middle portion of the chute 4;

[0072] The angle between the front portion of the chute 4 and the horizontal plane is smaller than the angle α between the middle portion and the rear portion of the chute 4 and the horizontal plane, so that the injection molded product that slides down can smoothly pass through the detection port and enter the sample placement slot 6.

[0073] Preferably, α1 is 10 0 to 45 0 Between, α2 is 46 0 to 90 0 between.

[0074] Example 3

[0075] Based on the first embodiment, the injection molding machine further includes a control circuit and an external confirmation button;

[0076] The external confirmation button is arranged outside the housing;

[0077] When the external confirmation button is triggered, a detected signal is sent to the control circuit;

[0078] The control circuit includes a timer and a counter, and the initial values of the timer and the counter are 0;

[0079] The control circuit is connected to the manipulator and the telescopic rod driver signal;

[0080] When the control circuit receives the sampling detection request signal, it sends an extension control signal to the telescopic rod driver to drive the telescopic rod to extend until it is fully extended, and its timer starts timing;

[0081] The control circuit sends an extension control signal to drive the telescopic rod to extend to the fully extended state, and if it receives a product release signal sent by the manipulator, the counter automatically increases by 1;

[0082] The control circuit clears the counter to 0 after receiving the detected signal;

[0083] The control circuit sends a contraction control signal to the driver of the telescopic rod to drive the telescopic rod to contract until it is fully contracted, and resets the timer when the timer exceeds the set time and the value of the counter is 0.

[0084] In the injection molding machine of embodiment 3, upon receiving a sampling inspection request signal, the control circuit sends an extension control signal to the telescopic rod driver to drive the telescopic rod to extend until it is fully extended, and its timer starts timing; after the manipulator places the sample, it sends a product release signal. If the control circuit receives the product release signal, it increments its counter by 1; after the quality inspector takes the sample, it triggers an external confirmation button to send a detected signal. After receiving the detected signal, the control circuit clears the counter to 0; when the timer exceeds the set time and the counter value is 0, the control circuit sends a retraction control signal to the telescopic rod driver to drive the telescopic rod to retract until it is fully retracted, and clears the timer. In the injection molding machine of embodiment 3, the quality inspector promptly removes the sampled injection molded product from the sample placement slot 6 to inspect the product quality. The external confirmation button can be used to confirm and proceed to sampling the next injection molded product. During the entire process, the conveyor belt continuously transports the injection molded product without interrupting production.

[0085] Example 4

[0086] Based on the injection molding machine of the third embodiment, the control circuit outputs an emergency stop signal to control the injection molding machine to alarm and stop if the value of the counter is greater than 1.

[0087] In the injection molding machine of embodiment 4, if the injection molded product in the sample placement slot 6 is not taken out for inspection in time, that is, the quality inspector does not trigger the external confirmation button, when a sampling inspection request signal is received, because the counter count value is not 0, the control circuit outputs an emergency stop signal to control the injection molding machine to alarm and stop, which can avoid confusion between different sampled products.

[0088] Example 5

[0089] Based on the third embodiment, the injection molding machine further includes an inspection reminder device;

[0090] After the control circuit sends an extension control signal to drive the telescopic rod to the fully extended state, if it receives a product release signal sent by the robot, its counter will increase by 1, and at the same time, it will output a quality inspection prompt signal to control the inspection reminder device to send an inspection prompt information.

[0091] Preferably, the inspection reminder device is an indicator light or a loudspeaker, the indicator light is used to emit light prompt information, and the loudspeaker is used to emit audio prompt information.

[0092] In the injection molding machine of the fifth embodiment, when there is a sample injection molded product in the sample placement slot 6 and the sample injection molded product is ready, the inspection reminder device will send an inspection reminder message to remind the quality inspector to check the product quality in time to avoid missed inspection due to forgetfulness of the quality inspector.

[0093] Example 6

[0094] Based on the third embodiment, the injection molding machine further includes an external request button;

[0095] When the external request button is triggered, a sampling detection request signal is sent to the control circuit.

[0096] In the injection molding machine of Example 6, if product quality needs to be inspected, a quality inspector can trigger an external request button to send a sampling inspection request signal to the control circuit. The control circuit then sends an extension control signal to the telescopic rod driver, causing the telescopic rod to extend until it is fully extended. As a result, the chute 4 is fully extended with the hinge 5 as the axis to reach the space above the product placement area. The injection molding machine robot releases the product onto the chute 4, and the product slides down the chute 4 to the sample placement slot 6. In the injection molding machine of Example 6, quality inspectors can perform quality inspections on samples of the latest injection molded products at any time.

[0097] Example 7

[0098] Based on the injection molding machine of the third embodiment, the sampling detection request signal comes from the master control system.

[0099] Preferably, the master control system periodically sends a sampling detection request signal to the control circuit.

[0100] The injection molding machine of the seventh embodiment can automatically and regularly sample the injection molded products, thereby significantly improving the efficiency of quality inspection sampling.

[0101] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An injection molding machine, characterized in that: It includes a housing, a conveyor belt (7), a manipulator, a slide (4), a sample placement slot (6) and a telescopic rod (2); The conveyor belt (7), the manipulator, the chute (4) and the telescopic rod (2) are placed in the housing; The conveyor belt (7) moves from front to back and passes directly below the release area (8); The manipulator is used to transport the injection molded products produced by the injection molding machine to the release area (8) for release; A detection port is provided on the front wall of the housing at the front side of the conveyor belt (7); The lower edge of the detection port is located above the front end of the conveyor belt (7); The front end of the slide groove (4) is hinged to the front wall of the housing at the lower edge of the detection port, and the middle part is connected to one end of the telescopic rod (2); A profile (1) is fixed on the inner side of the front wall of the shell; The other end of the telescopic rod (2) is hinged to the front wall of the housing through the profile (1); The sample placement slot (6) is arranged below the detection port on the front wall of the housing; When the telescopic rod (2) is extended, the slide groove (4) rotates clockwise around the front end; When the telescopic rod (2) is in a fully extended state, the rear portion of the chute (4) is located between the release area (8) and the conveyor belt (7), and the injection molded product released from the release area (8) will fall onto the chute (4), and the injection molded product falling onto the chute (4) will slide along the chute (4) to the sample placement groove (6); When the telescopic rod (2) contracts, the slide groove (4) rotates counterclockwise around the front end; When the telescopic rod (2) is in a fully retracted state, the chute (4) moves out from directly below the release area (8), and the injection molded product released from the release area (8) falls onto the conveyor belt (7); α1 is between 10° and 45°, and α2 is between 46° and 90°. α1 is the angle between the slide groove (4) and the horizontal plane when the telescopic rod (2) is in a fully extended state, and α2 is the angle between the slide groove (4) and the horizontal plane when the telescopic rod (2) is in a fully retracted state.

2. The injection molding machine according to claim 1, characterized in that The telescopic rod (2) is a pneumatic telescopic rod.

3. The injection molding machine according to claim 1, characterized in that A connecting plate (3) is fixed to the middle of the slide groove (4), and one end of the telescopic rod (2) is hinged to the middle of the slide groove (4) through the connecting plate (3).

4. The injection molding machine according to claim 1, characterized in that The front end of the slide groove (4) is hinged to the front wall of the housing at the lower edge of the detection port through a hinge (5).

5. The injection molding machine according to claim 1, wherein A bend is formed between the front portion and the middle portion of the slide groove (4); The included angle between the front portion of the chute (4) and the horizontal plane is smaller than the included angle α between the middle portion and the rear portion of the chute (4) and the horizontal plane.

6. The injection molding machine according to claim 1, characterized in that The injection molding machine also includes a control circuit and an external confirmation button; The external confirmation button is arranged outside the housing; When the external confirmation button is triggered, a detected signal is sent to the control circuit; The control circuit includes a timer and a counter, and the initial values of the timer and the counter are 0; The control circuit is connected to the manipulator and the telescopic rod driver signal; When the control circuit receives the sampling detection request signal, it sends an extension control signal to the telescopic rod driver to drive the telescopic rod to extend until it is fully extended, and its timer starts timing; The control circuit sends an extension control signal to drive the telescopic rod to extend to the fully extended state, and if it receives a product release signal sent by the manipulator, the counter automatically increases by 1; The control circuit clears the counter to 0 after receiving the detected signal; The control circuit sends a contraction control signal to the driver of the telescopic rod to drive the telescopic rod to contract until it is fully contracted, and resets the timer when the timer exceeds the set time and the value of the counter is 0.

7. The injection molding machine according to claim 6, characterized in that The control circuit outputs an emergency stop signal to control the injection molding machine to alarm and stop if the value of the counter is greater than 1.

8. The injection molding machine according to claim 6, characterized in that The injection molding machine also includes an indicator light; After the control circuit sends an extension control signal to drive the telescopic rod to extend to the fully extended state, if it receives a product release signal sent by the robot, the counter will increase by 1 and at the same time output a quality inspection prompt signal to control the lighting of the indicator light.

9. The injection molding machine according to claim 6, characterized in that The injection molding machine also includes an external request button; When the external request button is triggered, a sampling detection request signal is sent to the control circuit.

10. The injection molding machine according to claim 6, characterized in that The sampling detection request signal comes from the master control system.

11. The injection molding machine according to claim 10, characterized in that The master control system periodically sends a sampling detection request signal to the control circuit.

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