Injection mold pressure self-compensation detection system and method of multispectral CCD (Charge Coupled Device)

Abstract

The invention provides a multi-spectral CCD injection mold pressure self-compensation detection system and method, and relates to the technical field of injection mold pressure detection. The injection mold pressure self-compensation detection system of the multispectral CCD comprises an injection molding operation table, a lower fixed mold is fixedly connected to the upper surface of the injection molding operation table, and four vertical guide straight rods are fixedly connected to the upper surface of the injection molding operation table and located on the outer side of the lower fixed mold. According to the device, the ascending condition of the indicator lamp is detected and observed through the CCD detection camera, the first mounting pump is started by observing the ascending condition of the indicator lamp, the first mounting pump extracts high-pressure gas in the mold cavity from the gas inlet and outlet connector, the pressure in the mold cavity is reduced, and in the gas extraction process, the descending condition of the indicator lamp is detected and observed through the CCD detection camera; and when the observation indicating lamp descends to the original position, air exhaust is stopped, the balance of pressure inside and outside the mold cavity is maintained, the surface cracking condition during product forming is avoided, and the product quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of injection mold pressure detection, and in particular to a multi-spectral CCD injection mold pressure self-compensation detection system and method. Background Art

[0002] Injection molds are tools used to produce plastic products, giving them a complete structure and precise dimensions. They are also a processing method used in mass production of parts, primarily in the industrial sector. The injection molding process involves injecting heated, molten material into the mold cavity under high pressure. After cooling and solidification, the resulting molded product is formed. These molds are categorized into thermosetting plastic molds and thermoplastic plastic molds based on their molding characteristics.

[0003] At present, after the injection mold is closed and material is added to the mold cavity, the presence of high-temperature material in the mold cavity causes the pressure inside the mold cavity to increase. If the pressure is not released, excessive pressure may cause cracks on the product surface, affecting the quality of the product. The existing technology lacks effective means to detect pressure and a self-compensation system, which is not conducive to product production to a certain extent. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides a multi-spectral CCD injection mold pressure self-compensation detection system and method, which solves the problem in the existing technology that there is a lack of effective means to detect pressure and a self-compensation system, which is not conducive to product production to a certain extent.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-spectral CCD injection mold pressure self-compensation detection system, comprising an injection molding operating table, the upper surface of the injection molding operating table is fixedly connected to a lower fixed mold, the upper surface of the injection molding operating table and located on the outside of the lower fixed mold are fixedly connected to four vertical guide rods, the outer surfaces of the four vertical guide rods are commonly slidably connected with an upper movable mold, the top ends of the four vertical guide rods are commonly fixedly connected to a connecting fixed seat plate, the top end of the connecting fixed seat plate is equipped with a power component for driving the upper movable mold to rise and fall, four groups of indicator components are installed on the upper surface of the upper movable mold, a detection component is provided on one side of each group of the indicator components, the four corners of the upper surface of the upper movable mold are fixedly connected to air inlet and outlet joints, and the top end of each of the air inlet and outlet joints is connected to an air inlet and outlet component.

[0008] Preferably, two rectangular guide mounting blocks are fixedly connected to both sides of the upper movable mold, and each of the rectangular guide mounting blocks is slidably connected to the outer surface of the corresponding vertical guide rod.

[0009] Preferably, the power assembly includes two lifting drive cylinders fixedly connected to the top of the fixed seat plate, the piston end of the lifting drive cylinder is fixedly connected to a connecting shaft, and the end of the connecting shaft away from the lifting drive cylinder is fixedly connected to the upper surface of the upper movable mold. When the two lifting drive cylinders are started, the piston end of the lifting drive cylinder moves downward with the connecting shaft, and the connecting shaft moves downward with the upper movable mold, so that the upper movable mold and the lower fixed mold are closed.

[0010] Preferably, the indicating assembly includes a vertical fixed sleeve fixedly connected to the upper surface of the upper movable mold, the bottom of the vertical fixed sleeve is communicated with the upper surface of the upper movable mold, the interior of the vertical fixed sleeve is fixedly connected with a built-in fixed disc, the surface of the built-in fixed disc is penetrated by a vertical lifting rod, the top of the vertical lifting rod extends to the outside of the vertical fixed sleeve and is fixedly connected with an observation indicator light, the bottom end of the vertical lifting rod is fixedly connected with a built-in movable piston, the built-in movable piston is in sliding contact with the inner wall of the vertical fixed sleeve, the outer surface of the vertical lifting rod is sleeved with a connecting spring, one end of the connecting spring is fixedly connected to the lower surface of the built-in fixed disc, and the other end of the connecting spring is fixedly connected to the upper surface of the built-in movable piston.

[0011] Preferably, the detection component includes an L-shaped fixed mounting seat arranged on the upper surface of the upper movable mold, the L-shaped fixed mounting seat is connected to the upper surface of the upper movable mold by bolts, and a CCD detection camera is fixedly connected to the side wall of the L-shaped fixed mounting seat, and the CCD detection camera is directed toward the indication component.

[0012] Preferably, an injection feed pipe is fixedly connected to the upper surface of the upper movable mold, the top end of the injection feed pipe passes through the fixed seat plate and extends above it, and a feed valve is installed on the outer surface of the injection feed pipe.

[0013] Preferably, the air inlet and outlet components include a first mounted pump fixedly connected to the upper surface of the injection molding operating table, the inlet of the first mounted pump is fixedly connected to a first fixed air pipe, the end of the first fixed air pipe away from the first mounted pump is fixedly connected to a connecting hose, the end of the connecting hose away from the first fixed air pipe is fixedly connected to the air inlet and outlet joints, the upper surface of the injection molding operating table is fixedly connected to a rare gas generator, the outlet of the rare gas generator is connected to a second mounted pump, the outlet of the second mounted pump is fixedly connected to a second fixed air pipe, the end of the second fixed air pipe away from the second mounted pump is fixedly connected to the first fixed air pipe, valves are provided on the outer surfaces of the air inlet and outlet joints, the first fixed air pipe and the second fixed air pipe, high-temperature material enters the mold cavity, the internal pressure of the mold cavity increases, the pressure pushes the built-in movable piston to rise, the built-in movable piston rises with the observation indicator light through the vertical lifting rod, and at the same time, the rising of the observation indicator light is detected by the CCD detection camera.

[0014] A self-compensation detection method for a multi-spectral CCD injection mold pressure self-compensation detection system, the method comprising the following steps:

[0015] S1. Start the two lifting drive cylinders. The piston ends of the lifting drive cylinders move the connecting shaft downward, and the connecting shaft moves the upper movable mold downward, so that the upper movable mold and the lower fixed mold are closed. Then, the material is injected into the mold cavity through the injection feed pipe.

[0016] S2. High-temperature material enters the mold cavity, and the internal pressure of the mold cavity increases. The pressure pushes the built-in movable piston to rise. The built-in movable piston rises with the observation indicator light through the vertical lifting rod. At the same time, the CCD detection camera detects the rise of the observation indicator light.

[0017] S3. By observing the rising of the indicator light, the first installation pump is started. The first installation pump extracts high-pressure gas from the mold cavity through the inlet and outlet joints to reduce the pressure inside the mold cavity;

[0018] S4. During the cooling and molding process of the material in the mold cavity, the rare gas generator and the second installation pump are started, and the rare gas enters the interior of the mold cavity through the action of the second installation pump.

[0019] (3) Beneficial effects

[0020] The present invention provides a multi-spectral CCD injection mold pressure self-compensation detection system and method.

[0021] It has the following beneficial effects:

[0022] 1. The present invention detects the rising of the indicator light through a CCD detection camera. By observing the rising of the indicator light, the first installation pump is started. The first installation pump extracts high-pressure gas inside the mold cavity from the inlet and outlet air joints to reduce the internal pressure of the mold cavity. During the air extraction process, the CCD detection camera is used to detect the falling of the indicator light. When the indicator light falls to its original position, the air extraction is stopped to maintain the balance of pressure inside and outside the mold cavity, avoid surface cracking during product molding, and ensure product quality.

[0023] 2. In the present invention, when the material in the mold cavity is cooling and forming, the rare gas generator and the second installation pump are started. The rare gas enters the interior of the mold cavity through the action of the second installation pump, so as to avoid the internal pressure of the mold cavity being reduced after cooling, which causes the surface of the product to be concave. The cold inert gas is sent in, so that the surface of the product is cooled faster and demolding is easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a multi-spectral CCD injection mold pressure self-compensation detection system provided by the present invention;

[0025] Figure 2 This is a front schematic diagram of a multi-spectral CCD injection mold pressure self-compensation detection system provided by the present invention;

[0026] Figure 3 A top view of a multi-spectral CCD injection mold pressure self-compensation detection system provided by the present invention;

[0027] Figure 4 A side view of a multi-spectral CCD injection mold pressure self-compensation detection system provided by the present invention;

[0028] Figure 5 A schematic diagram of the upper movable mold structure of a multi-spectral CCD injection mold pressure self-compensation detection system provided by the present invention;

[0029] Figure 6 This is a schematic diagram of the internal structure of a vertical fixed sleeve of an injection mold pressure self-compensation detection system using a multi-spectral CCD provided by the present invention.

[0030] Among them, 1. Injection molding operation table; 2. Lower fixed mold; 3. Vertical guide rod; 4. Upper movable mold; 5. Rectangular guide mounting block; 6. Connecting fixed seat plate; 7. Lifting drive cylinder; 8. Injection molding feed pipe; 9. L-shaped fixed mounting seat; 10. CCD detection camera; 11. Vertical fixed sleeve; 12. Built-in fixed disc; 13. Vertical lifting plug rod; 14. Observation indicator light; 15. Built-in moving piston; 16. Connecting spring; 17. Inlet and outlet air joints; 18. First installation pump; 19. First fixed air pipe; 20. Connecting hose; 21. Second installation pump; 22. Rare gas generator; 23. Second fixed air pipe. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example:

[0033] like Figure 1-6 As shown, an embodiment of the present invention provides a multi-spectral CCD injection mold pressure self-compensation detection system, comprising an injection molding operation table 1, wherein a lower fixed mold 2 is fixedly connected to the upper surface of the injection molding operation table 1, four vertical guide rods 3 are fixedly connected to the upper surface of the injection molding operation table 1 and located outside the lower fixed mold 2, an upper movable mold 4 is slidably connected between the outer surfaces of the four vertical guide rods 3, and two rectangular guide mounting blocks 5 are fixedly connected to both sides of the upper movable mold 4, and each rectangular guide mounting block 5 is slidably connected to the outer surface of the corresponding vertical guide rod 3;

[0034] The top ends of the four vertical guide rods 3 are commonly fixedly connected to a connecting fixed base plate 6, and a power assembly for driving the upper movable mold 4 to lift and lower is installed on the top end of the connecting fixed base plate 6. The power assembly includes two lifting drive cylinders 7 fixedly connected to the top ends of the connecting fixed base plate 6, and the piston ends of the lifting drive cylinders 7 are fixedly connected to a connecting shaft. The end of the connecting shaft away from the lifting drive cylinders 7 is fixedly connected to the upper surface of the upper movable mold 4. When the two lifting drive cylinders 7 are started, the piston ends of the lifting drive cylinders 7 move downward with the connecting shaft, and the connecting shaft moves the upper movable mold 4 downward with the upper movable mold 4, so that the upper movable mold 4 and the lower fixed mold 2 are molded together;

[0035] Four groups of indicating components are installed on the upper surface of the upper movable mold 4, and the indicating components include a vertical fixed sleeve 11 fixedly connected to the upper surface of the upper movable mold 4, the bottom of the vertical fixed sleeve 11 is communicated with the upper surface of the upper movable mold 4, the interior of the vertical fixed sleeve 11 is fixedly connected with a built-in fixed disc 12, the surface of the built-in fixed disc 12 is penetrated by a vertical lifting rod 13, the top of the vertical lifting rod 13 extends to the outside of the vertical fixed sleeve 11 and is fixedly connected with an observation indicator light 14, the bottom end of the vertical lifting rod 13 is fixedly connected with a built-in movable piston 15, the built-in movable piston 15 is in sliding contact with the inner wall of the vertical fixed sleeve 11, and the outer surface of the vertical lifting rod 13 is sleeved with a connecting spring 16, one end of the connecting spring 16 is fixedly connected to the lower surface of the built-in fixed disc 12, and the other end of the connecting spring 16 is fixedly connected to the upper surface of the built-in movable piston 15;

[0036] A detection assembly is provided on one side of each group of indicator components. The detection assembly includes an L-shaped fixed mounting seat 9 provided on the upper surface of the upper movable mold 4. The L-shaped fixed mounting seat 9 is connected to the upper surface of the upper movable mold 4 by bolts. A CCD detection camera 10 is fixedly connected to the side wall of the L-shaped fixed mounting seat 9, and the CCD detection camera 10 faces the indicator component; an injection molding feed pipe 8 is fixedly connected to the upper surface of the upper movable mold 4, and the top end of the injection molding feed pipe 8 passes through the fixed seat plate 6 and extends above it. A feed valve is installed on the outer surface of the injection molding feed pipe 8;

[0037] The four corners of the upper surface of the upper movable mold 4 are fixedly connected with inlet and outlet joints 17, and the top of each inlet and outlet joint 17 is connected to an inlet and outlet assembly, which includes a first installation pump 18 fixedly connected to the upper surface of the injection molding operation table 1, and the inlet of the first installation pump 18 is fixedly connected to a first fixed air pipe 19, and the end of the first fixed air pipe 19 away from the first installation pump 18 is fixedly connected to a connecting hose 20, and the end of the connecting hose 20 away from the first fixed air pipe 19 is fixedly connected to the inlet and outlet joints 17, and the upper surface of the injection molding operation table 1 is fixedly connected to a rare gas generator 22, and the outlet of the rare gas generator 22 is connected to a second Install the pump 21, the outlet of the second installation pump 21 is fixedly connected to the second fixed air pipe 23, the end of the second fixed air pipe 23 away from the second installation pump 21 is fixedly connected to the first fixed air pipe 19, and the outer surfaces of the inlet and outlet air joints 17, the first fixed air pipe 19 and the second fixed air pipe 23 are all provided with valves. By observing the rising of the indicator light 14, the first installation pump 18 is started, and the first installation pump 18 extracts the high-pressure gas inside the mold cavity from the inlet and outlet air joints 17 to reduce the internal pressure of the mold cavity. During the exhaust process, the CCD detection camera 10 is used to detect and observe the descent of the indicator light 14. When the indicator light 14 descends to its original position, the exhaust is stopped.

[0038] The present invention also includes a self-compensation detection method for a multi-spectral CCD injection mold pressure self-compensation detection system, the method comprising the following steps:

[0039] S1. Start the two lifting drive cylinders 7. The piston ends of the lifting drive cylinders 7 move downward with the connecting shaft, and the connecting shaft moves the upper movable mold 4 downward, so that the upper movable mold 4 and the lower fixed mold 2 are closed, and then the material is injected into the mold cavity through the injection feed pipe 8.

[0040] S2. The high-temperature material enters the mold cavity, and the pressure inside the mold cavity increases. The pressure pushes the built-in movable piston 15 to rise. The built-in movable piston 15 rises with the observation indicator light 14 through the vertical lifting rod 13. At the same time, the CCD detection camera 10 detects the rise of the observation indicator light 14.

[0041] S3. By observing the rising of the indicator light 14, the first installation pump 18 is started. The first installation pump 18 extracts high-pressure gas from the mold cavity through the inlet and outlet joints 17 to reduce the pressure inside the mold cavity. During the extraction process, the CCD detection camera 10 detects the descent of the observation indicator light 14. When the indicator light 14 drops to its original position, the extraction is stopped.

[0042] S4. During the cooling and molding process of the material in the mold cavity, the rare gas generator 22 and the second installation pump 21 are started, and the rare gas enters the interior of the mold cavity through the action of the second installation pump 21.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the statement "comprising a reference structure" does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-spectral CCD injection mold pressure self-compensation detection system, comprising an injection molding operation table (1), characterized in that: The upper surface of the injection molding operation table (1) is fixedly connected to a lower fixed mold (2); four vertical guide rods (3) are fixedly connected to the upper surface of the injection molding operation table (1) and located outside the lower fixed mold (2); an upper movable mold (4) is slidably connected between the outer surfaces of the four vertical guide rods (3); the top ends of the four vertical guide rods (3) are fixedly connected to a connecting fixed seat plate (6); a power component for driving the upper movable mold (4) to rise and fall is installed on the top end of the connecting fixed seat plate (6); four groups of indicating components are installed on the upper surface of the upper movable mold (4); a detection component is provided on one side of each group of indicating components; inlet and outlet air joints (17) are fixedly connected at the four corners of the upper surface of the upper movable mold (4); and the top end of each inlet and outlet air joint (17) is connected to an inlet and outlet air component.

2. The multi-spectral CCD injection mold pressure self-compensation detection system according to claim 1, characterized in that: Two rectangular guide mounting blocks (5) are fixedly connected to both sides of the upper movable mold (4), and each rectangular guide mounting block (5) is slidably connected to the outer surface of the corresponding vertical guide rod (3).

3. The multi-spectral CCD injection mold pressure self-compensation detection system according to claim 2, characterized in that: The power assembly comprises two lifting drive cylinders (7) fixedly connected to the top of a connecting fixed base plate (6), the piston ends of the lifting drive cylinders (7) are fixedly connected to a connecting shaft, and the end of the connecting shaft away from the lifting drive cylinders (7) is fixedly connected to the upper surface of the upper movable mold (4).

4. The multi-spectral CCD injection mold pressure self-compensation detection system according to claim 3, characterized in that: The indicating assembly comprises a vertical fixed sleeve (11) fixedly connected to the upper surface of the upper movable mold (4); the bottom of the vertical fixed sleeve (11) is communicated with the upper surface of the upper movable mold (4); the interior of the vertical fixed sleeve (11) is fixedly connected to a built-in fixed disc (12); a vertical lifting rod (13) is inserted through the surface of the built-in fixed disc (12); the top end of the vertical lifting rod (13) extends to the outside of the vertical fixed sleeve (11) and is fixedly connected to the Observe the indicator light (14), the bottom end of the vertical lifting rod (13) is fixedly connected to a built-in movable piston (15), the built-in movable piston (15) is in sliding contact with the inner wall of the vertical fixed sleeve (11), the outer surface of the vertical lifting rod (13) is sleeved with a connecting spring (16), one end of the connecting spring (16) is fixedly connected to the lower surface of the built-in fixed disc (12), and the other end of the connecting spring (16) is fixedly connected to the upper surface of the built-in movable piston (15).

5. The multi-spectral CCD injection mold pressure self-compensation detection system according to claim 4, characterized in that: The detection assembly comprises an L-shaped fixed mounting seat (9) arranged on the upper surface of the upper movable mold (4); the L-shaped fixed mounting seat (9) is connected to the upper surface of the upper movable mold (4) via bolts; a CCD detection camera (10) is fixedly connected to the side wall of the L-shaped fixed mounting seat (9); and the CCD detection camera (10) is oriented toward the indication assembly.

6. The multi-spectral CCD injection mold pressure self-compensation detection system according to claim 5, characterized in that: An injection molding feed pipe (8) is fixedly connected to the upper surface of the upper movable mold (4), the top end of the injection molding feed pipe (8) passes through the fixed seat plate (6) and extends above it, and a feed valve is installed on the outer surface of the injection molding feed pipe (8).

7. The multi-spectral CCD injection mold pressure self-compensation detection system according to claim 6, characterized in that: The air inlet and outlet assembly comprises a first mounting pump (18) fixedly connected to the upper surface of the injection molding operation table (1); the inlet of the first mounting pump (18) is fixedly connected to a first fixed air pipe (19); the end of the first fixed air pipe (19) away from the first mounting pump (18) is fixedly connected to a connecting hose (20); the end of the connecting hose (20) away from the first fixed air pipe (19) is fixedly connected to the air inlet and outlet joint (17); the upper surface of the injection molding operation table (1) is fixedly connected to a rare gas generator (22); the outlet of the rare gas generator (22) is connected to a second mounting pump (21); the outlet of the second mounting pump (21) is fixedly connected to a second fixed air pipe (23); the end of the second fixed air pipe (23) away from the second mounting pump (21) is fixedly connected to the first fixed air pipe (19); and valves are provided on the outer surfaces of the air inlet and outlet joint (17), the first fixed air pipe (19) and the second fixed air pipe (23).

8. The self-compensation detection method of the multi-spectral CCD injection mold pressure self-compensation detection system according to claim 7, characterized in that: The method comprises the following steps: S1. Start the two lifting drive cylinders (7). The piston ends of the lifting drive cylinders (7) move downward with the connecting shaft, and the connecting shaft moves the upper movable mold (4) downward, so that the upper movable mold (4) and the lower fixed mold (2) are closed, and then the material is injected into the mold cavity through the injection feeding pipe (8); S2. The high-temperature material enters the mold cavity, and the pressure inside the mold cavity increases. The pressure pushes the built-in movable piston (15) to rise. The built-in movable piston (15) rises with the observation indicator light (14) through the vertical lifting rod (13). At the same time, the rising condition of the observation indicator light (14) is detected by the CCD detection camera (10); S3, by observing the rising condition of the indicator light (14), the first installation pump (18) is started, and the first installation pump (18) extracts the high-pressure gas inside the mold cavity from the inlet and outlet joints (17) to reduce the pressure inside the mold cavity; S4. During the cooling and molding process of the material in the mold cavity, the rare gas generator (22) and the second installation pump (21) are started, and the rare gas enters the interior of the mold cavity through the action of the second installation pump (21).

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