A vacuum filling machine with automatic detection function

Abstract

The present invention discloses a vacuum filling machine with an automatic detection function, and relates to the technical field of vacuum filling machines. It includes a casing, a control box, a vacuum generating device, a back-blowing device, a filter rack, a detection and dehumidification device, a discharge port and a feed pipe. The present invention utilizes a first motor to drive the drying ring to rotate, so that the drying ring generates a flowing hot air flow to purge the injection molding particles, prevent the injection molding particles from regaining moisture, and ensure the injection molding quality. By setting the second filter, the external air is filtered to ensure the cleanliness of the air and prevent contamination of the internal injection molding particles; the control system adjusts the corresponding speeds of the first motor and the second motor, as well as the corresponding heating temperatures of the first electric heating component and the second electric heating component according to the regain moisture of the particles; the transmission member drives the slide to detect the regain moisture while pushing the air intake ring to slide, so that the purge chamber is opened, and finally achieves the purpose of adaptively adjusting the purge and drying effects according to the regain moisture.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum filling machines, in particular to a vacuum filling machine with an automatic detection function. Background Art

[0002] With the continuous advancement of plastic molding technology, injection molding has become a core process in the manufacture of plastic products. Raw material feeding systems and pretreatment equipment have a significant impact on the quality of molded products. In recent years, vacuum fillers have been widely used in injection molding production lines due to their advantages of automated feeding, precise metering, and reduced human intervention. They are used to efficiently and stably transport dried, mixed plastic raw materials from the storage system to the injection molding machine.

[0003] Currently, vacuum fillers, as key equipment in the plastic raw material supply system, are widely used in plastic molding processes such as injection molding and die-casting. However, some raw materials are easily affected by external humid air during transportation, resulting in moisture regain, which can lead to uneven dryness and even caking of the raw materials. Traditional vacuum fillers focus primarily on automated feeding and metering, lacking real-time and effective means of detecting the material's dryness. This makes it easy for raw materials with excessive moisture content to become clogged when entering the vacuum filler pipeline. Furthermore, once the regained moisture raw materials enter the injection molding machine, they can easily cause defects such as bubbles, shrinkage holes, and uneven melt during the molding process, seriously affecting the mechanical properties and appearance quality of the finished product. Summary of the Invention

[0004] The object of the present invention is to provide a vacuum filling machine with an automatic detection function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a vacuum filling machine with an automatic detection function, comprising a casing, a control box installed on one side of the casing, a feed pipe installed on the casing, a detection and dehumidification device connected to the feed pipe, a discharge port installed at the bottom of the casing, an electric valve provided at the discharge port, a vacuum generating device installed in the casing, a back-blowing device installed in the casing, a filter rack installed in the casing, and a first filter installed on the filter rack.

[0006] The control box houses the control system, which controls the entire vacuum filler. The first filter prevents the injection molding material from being drawn into the vacuum generator. The vacuum generator creates negative pressure within the machine housing, generating suction that draws the material through the feed pipe. The dehumidification detection system is connected to an external feeder via piping.

[0007] The control system turns on the vacuum generating device, which extracts the air from the casing, generating negative pressure suction inside the casing, indirectly causing the feed pipe and the detection and dehumidification device to generate negative pressure suction. Under the action of the negative pressure suction, the injection molding material in the feeding device falls into the casing from the detection and dehumidification device and the feed pipe in turn through the pipeline. When the injection molding material reaches the preset amount, the vacuum generating device is turned off. At the same time, the electric valve and the back-blowing device are turned on. The back-blowing device blows away the injection molding material remaining on the filter screen, and the injection molding material in the casing falls from the discharge port to complete the filling.

[0008] Furthermore, the detection and dehumidification device includes a shell, a material ring is provided inside the shell, a feed port is provided on the shell, a pipeline is connected to the feed port, a filter ring frame is provided on the shell, a second filter is provided on the filter ring frame, the shell is connected to the feed pipe, a purge chamber is provided in the shell, and the filter ring frame is located at the air inlet of the purge chamber.

[0009] During filling, the injection molding raw material enters the feed port through the pipe, passes through the inside of the material ring, and then passes through the shell and enters the feed pipe. The second filter is used to isolate impurities from the outside air.

[0010] Furthermore, the detection and dehumidification device also includes a detection and breaking device, a drying device and an air intake ring. The detection and breaking device is installed in the shell, the drying device is installed in the shell, the air intake ring is slidably installed on the material ring, and a first spring is installed between the air intake ring and the material ring. The air intake ring is fitted with the detection and breaking device, and the air intake ring is located at the air outlet of the purge chamber.

[0011] Under normal conditions, the air inlet ring blocks the purge chamber.

[0012] Furthermore, the drying device includes a drying ring and a first motor. The drying ring is rotatably installed in the shell. The first motor is installed in the shell. A first gear is installed on the output shaft of the first motor. The first gear is engaged with the drying ring for transmission. The drying ring is rotatably connected to the material ring. The drying ring is located in the purge chamber.

[0013] Furthermore, the drying ring includes a rotating ring, which is rotatably connected to the material ring, and a plurality of fan blades are installed on the rotating ring. A heating ring is installed on the fan blades, and a first electric heating component is provided in the heating ring. A first gear ring is installed on the heating ring, and the first gear ring is also rotatably connected to the shell, and the first gear ring is engaged with the first gear for transmission.

[0014] The first electric heating component is used to heat the heating ring so that the heating ring generates heat.

[0015] When the control system detects that the injection molding pellets are unsatisfactory in terms of dryness, it automatically turns on the first motor and the first electric heating component, and adjusts the corresponding motor speed and heating temperature based on the degree of moisture regain of the pellets. The first electric heating component generates heat in the heating ring, which heats the surrounding air. The first motor output shaft rotates the first gear, which in turn rotates the first gear ring, which in turn rotates the entire drying ring. The fan blades on the drying ring drive the hot air in the purge chamber to flow, allowing the hot air to enter the material ring through the gap between the pressure ring and the breaking ring, purging and heating the injection molding pellets passing through it. After the air in the purge chamber flows out, external air passes through the second filter screen and enters the purge chamber for replenishment. The second filter screen filters the external air to ensure air cleanliness and prevent contamination of the injection molding pellets inside.

[0016] Furthermore, the detection and breaking device includes a breaking ring and a second motor, the second motor is installed in the shell, a second gear is installed on the output shaft of the second motor, the breaking ring is rotatably installed in the shell, a second gear ring is provided on the breaking ring, a rotating rod is provided on the breaking ring, the second gear and the second gear ring are engaged for transmission, a breaking heater is rotatably installed on the rotating rod, a detector is installed in the breaking ring, the breaking heater and the detector are engaged for transmission, and the breaking ring is fitted with the intake ring.

[0017] When the injection molding raw materials pass through the detection and dehumidification device, they will come into contact with the dehumidification heater. When the injection molding particles are dry enough, the adhesion between the particles is small, the overall flow resistance is small, and the force applied to the main rod and the bent rod is small. At this time, the main rod does not deflect.

[0018] When the dryness of the injection molding pellets is unqualified, the moist granular raw materials have high adhesion and flow resistance, and the pellets are prone to clumping. At this time, the main rod and the bent rod are subjected to greater forces. Under the action of the flow force, the main rod deflects toward the feed pipe and around the rotating rod. The main rod drives the transmission half gear to rotate, and the transmission half gear drives the rack to slide. The rack drives the slide to slide within the detection housing and squeeze the second spring. After the second spring is compressed, the elastic force on the pressing plate increases. The pressing plate transmits the elastic force to the piezoelectric ceramic, which generates an electric charge under pressure. The charge is transmitted to the control system through the wire. The wetter the injection molding pellets, the greater the force on the main rod and the bent rod, the greater the main rod deflection, the greater the rack displacement, the greater the pressure on the piezoelectric ceramic, and the stronger the electrical signal. The control system determines the moisture regain of the pellets based on the strength of the electrical signal.

[0019] When the control system detects that the injection molding pellets are unsatisfactory in terms of dryness, it activates the second motor and the second electric heating component, adjusting the corresponding motor speed and heating temperature based on the degree of moisture regain in the pellets. The second electric heating component heats the main rod and the bent rod. The second motor's output shaft drives the second gear to rotate, which in turn drives the second gear ring, which in turn drives the breaking ring, which in turn drives the breaking heater. The main rod, the bent rod, and the breaking element on them heat and stir the moisture-regained pellets, ensuring that the moisture-regained pellets are fully purged and dried by the hot air flow. As the detector rotates with the breaking ring, the ball bearing on the pusher head slides within the groove, maintaining contact with the intake ring. This ensures that the purge chamber remains open even when the rack rotates.

[0020] When the inside of the shell is clogged by clumping particles, the clumped particles are close to the breaking heater under the action of the negative pressure suction of the shell, and the rotating breaking needles effectively break the clumped particles, and the clumped particles are broken while drying.

[0021] Furthermore, the breaking heater includes a main rod, which is rotatably mounted on a rotating rod. A transmission half gear is provided on the main rod, which engages with the detector for transmission. Several bent rods are installed on the main rod, and the lengths of the bent rods decrease successively. Breaking needles are installed on both the bent rod and the main rod, and a second electric heating component is provided in the bent rod and the main rod.

[0022] The second electric heating component is used to generate heat for the bent rod and the main rod.

[0023] Furthermore, the detector includes a detection shell and a transmission part. The detection shell is installed in the breaking ring. The transmission part is slidably installed in the breaking ring. The transmission part is slidably connected to the detection shell. Piezoelectric ceramics are installed in the detection shell. A pressure plate is slidably installed in the detection shell. The pressure plate is fitted with the piezoelectric ceramics. A second spring is provided between the transmission part and the pressure plate. The transmission part is engaged with the transmission half gear for transmission.

[0024] Furthermore, the transmission part includes a rack, which is engaged with the transmission half gear for transmission, and the rack is slidably installed in the breaking ring. A sliding plate is installed on the rack, and the sliding plate is slidably connected to the detection shell. A second spring is installed between the sliding plate and the pressure plate. A push head is installed at one end of the rack, and a ball is rotatably installed on the push head, and the ball is engaged with the intake ring.

[0025] Furthermore, a groove is provided on the intake ring, and the ball is embedded in the groove. A pressure ring is provided on one side of the intake ring, and the pressure ring is tightly fitted with one side of the breaking ring. A number of sliding rods are provided on the intake ring, and the sliding rods are slidably connected to the material ring. A first spring is installed between the sliding rods and the material ring.

[0026] When the main rod drives the rack to slide, the rack synchronously drives the push head forward, and the push head drives the ball to push the intake ring, so that the intake ring overcomes the elastic force of the first spring and slides. After the intake ring slides, a gap is generated between the pressure ring and the breaking ring on the intake ring, and the purge chamber is opened. The size of the opened gap changes adaptively with the displacement of the rack. The larger the gap, the more hot air enters and the more obvious the drying effect.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The control system adjusts the speeds of the first and second motors, as well as the heating temperatures of the first and second electric heating components, according to the moisture regain of the particles. The transmission member drives the slide to detect moisture regain while pushing the air intake ring to slide, opening the purge chamber. Ultimately, the purpose of adaptively adjusting the purge and drying effects according to moisture regain is achieved.

[0029] 2. The first motor drives the drying ring to rotate, generating a hot air flow to purge the injection molding particles, preventing them from returning to moisture and ensuring injection molding quality. The second filter screen filters the external air to ensure clean air and prevent contamination of the internal injection molding particles.

[0030] 3. The force exerted by the regained granular raw materials on the main rod and the bent rod is converted into the deflection of the main rod, and the deflection is converted into the displacement of the transmission part through the transmission half gear on the main rod, thereby triggering the detector to complete the purpose of detecting the regain degree of the raw materials.

[0031] 4. The second motor drives the dehumidifier to rotate, allowing the heated dehumidifier to heat and stir the re-moistened particles, allowing the re-moistened particles to be fully blown and dried by the hot air flow, effectively improving the dryness of the injection molding particles. The rotating dehumidifier effectively de-agglomerates the agglomerated particles and prevents the vacuum filler from clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is an overall three-dimensional diagram of the vacuum filling machine of the present invention;

[0033] Figure 2 A perspective view of the vacuum filling machine of the present invention;

[0034] Figure 3 The present invention detects the three-dimensional dehumidification device Figure 1 ;

[0035] Figure 4 The present invention detects the three-dimensional dehumidification device Figure 2 ;

[0036] Figure 5 is a three-dimensional diagram of the housing of the present invention;

[0037] Figure 6 A three-dimensional diagram of the pressure ring of the present invention;

[0038] Figure 7 A perspective view of the air intake ring of the present invention;

[0039] Figure 8 is a perspective view of the drying device of the present invention;

[0040] Figure 9 A three-dimensional diagram of the detection and breaking device of the present invention;

[0041] Figure 10 A perspective view of a broken ring according to the present invention;

[0042] Figure 11 A perspective view of the heater of the present invention is shown;

[0043] Figure 12 It is a three-dimensional diagram of the detector of the present invention.

[0044] In the figure: 1, casing; 2, control box; 3, vacuum generating device; 4, back-blowing device; 5, filter rack; 6, detection and dehumidification device; 7, discharge port; 8, feed pipe; 61, casing; 62, drying device; 63, detection and breaking device; 64, air intake ring; 65, first spring; 611, purge chamber; 612, filter ring rack; 613, feed port; 614, material ring; 621, first motor; 622, first gear; 623, drying ring; 624, rotating ring; 625, fan blade; 626, heating ring; 627, first Gear ring; 631, second motor; 632, second gear; 633, breaking ring; 634, breaking heater; 9, detector; 6331, rotating rod; 6332, second gear ring; 6341, main rod; 6342, bending rod; 6343, breaking needle; 6344, transmission half gear; 91, detection housing; 92, piezoelectric ceramic; 93, pressing plate; 94, second spring; 95, transmission part; 951, rack; 952, push head; 953, ball bearing; 954, slide; 641, groove; 642, pressure ring; 643, slide rod. DETAILED DESCRIPTION

[0045] 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.

[0046] like Figures 1-12As shown, the present invention provides a technical solution for a vacuum filling machine with an automatic detection function: it includes a casing 1, a control box 2 is installed on one side of the casing 1, a feed pipe 8 is installed on the casing 1, the feed pipe 8 is connected to a detection and dehumidification device 6, a discharge port 7 is installed at the bottom of the casing 1, an electric valve is provided at the discharge port 7, a vacuum generating device 3 is installed in the casing 1, a back-blowing device 4 is installed in the casing 1, a filter rack 5 is installed in the casing 1, and a first filter is installed on the filter rack 5.

[0047] The control box 2 houses a control system for controlling the entire vacuum filler. A first filter prevents the injection molding material from being drawn into the vacuum generator 3. This device creates a negative pressure within the housing 1, generating suction that draws the injection molding material into the housing 1 through the feed pipe 8. The detection and dehumidification device 6 is connected to an external feeder via a pipeline.

[0048] The detection and dehumidification device 6 includes a shell 61, a material ring 614 is provided in the shell 61, a feed port 613 is provided on the shell 61, a pipeline is connected to the feed port 613, a filter ring frame 612 is provided on the shell 61, a second filter is provided on the filter ring frame 612, the shell 61 is connected to the feed pipe 8, a purge chamber 611 is provided in the shell 61, and the filter ring frame 612 is located at the air inlet of the purge chamber 611.

[0049] During filling, the injection molding raw material enters the feed port 613 through the pipeline, passes through the interior of the material ring 614, and then passes through the housing 61 and enters the feed pipe 8. The second filter is used to isolate impurities in the external air.

[0050] The detection and dehumidification device 6 also includes a detection and destruction device 63, a drying device 62, and an air intake ring 64. The detection and destruction device 63 is installed in the housing 61, the drying device 62 is installed in the housing 61, and the air intake ring 64 is slidably mounted on the material ring 614. A first spring 65 is installed between the air intake ring 64 and the material ring 614. The air intake ring 64 is in contact with the detection and destruction device 63 and is located at the air outlet of the purge chamber 611. In normal operation, the air intake ring 64 blocks the purge chamber 611.

[0051] The drying device 62 includes a drying ring 623 and a first motor 621. The drying ring 623 is rotatably installed in the shell 61. The first motor 621 is installed in the shell 61. A first gear 622 is installed on the output shaft of the first motor 621. The first gear 622 is engaged with the drying ring 623 for transmission. The drying ring 623 is rotatably connected to the material ring 614. The drying ring 623 is located in the purge chamber 611.

[0052] The drying ring 623 includes a rotating ring 624, which is rotatably connected to the material ring 614. A plurality of fan blades 625 are mounted on the rotating ring 624. A heating ring 626 is mounted on the fan blades 625. A first electric heating element is located within the heating ring 626. A first gear ring 627 is mounted on the heating ring 626, which is rotatably connected to the housing 61 and meshes with the first gear 622. The first electric heating element is used to heat the heating ring 626, causing it to generate heat.

[0053] The detection and breaking device 63 includes a breaking ring 633 and a second motor 631. The second motor 631 is installed in the shell 61. The second gear 632 is installed on the output shaft of the second motor 631. The breaking ring 633 is rotatably installed in the shell 61. A second gear ring 6332 is provided on the breaking ring 633. A rotating rod 6331 is provided on the breaking ring 633. The second gear 632 is engaged with the second gear ring 6332 for transmission. A breaking heater 634 is rotatably installed on the rotating rod 6331. A detector 9 is installed in the breaking ring 633. The breaking heater 634 is engaged with the detector 9 for transmission. The breaking ring 633 is in contact with the intake ring 64.

[0054] The destruction heater 634 includes a main rod 6341, which is rotatably mounted on the rotating rod 6331. The main rod 6341 is equipped with a transmission half gear 6344, which meshes with the detector 9 for transmission. The main rod 6341 is equipped with a plurality of curved rods 6342, each of which is of decreasing length. The curved rods 6342 and the main rod 6341 are both equipped with destruction needles 6343. The curved rods 6342 and the main rod 6341 are equipped with a second electric heating component. The second electric heating component is used to generate heat in the curved rods 6342 and the main rod 6341.

[0055] The detector 9 includes a detection shell 91 and a transmission member 95. The detection shell 91 is installed in the breaking ring 633. The transmission member 95 is slidably installed in the breaking ring 633. The transmission member 95 is slidably connected to the detection shell 91. A piezoelectric ceramic 92 is installed in the detection shell 91. A pressing plate 93 is slidably installed in the detection shell 91. The pressing plate 93 is fitted with the piezoelectric ceramic 92. A second spring 94 is provided between the transmission member 95 and the pressing plate 93. The transmission member 95 is engaged with the transmission half gear 6344 for transmission.

[0056] The transmission member 95 includes a rack 951, which is engaged with the transmission half gear 6344 for transmission. The rack 951 is slidably installed in the breaking ring 633. A slide 954 is installed on the rack 951. The slide 954 is slidably connected to the detection housing 91. A second spring 94 is installed between the slide 954 and the pressure plate 93. A push head 952 is installed at one end of the rack 951. A ball 953 is rotatably installed on the push head 952, and the ball 953 is engaged with the intake ring 64.

[0057] A groove 641 is provided on the air intake ring 64, and the ball 953 is engaged with the groove 641. A pressure ring 642 is provided on one side of the air intake ring 64, and the pressure ring 642 is tightly fitted with one side of the breaking ring 633. A plurality of sliding rods 643 are provided on the air intake ring 64, and the sliding rods 643 are slidably connected to the material ring 614. A first spring 65 is installed between the sliding rods 643 and the material ring 614.

[0058] The working principle of the present invention is as follows: the control system turns on the vacuum generating device 3, the vacuum generating device 3 extracts the air in the casing 1, and generates negative pressure suction inside the casing 1, indirectly causing the feed pipe 8 and the detection and dehumidification device 6 to generate negative pressure suction. Under the action of the negative pressure suction, the injection molding raw materials in the feeding device fall into the casing 1 from the detection and dehumidification device 6 and the feed pipe 8 in sequence through the pipeline. When the injection molding raw materials reach a preset amount, the vacuum generating device 3 is turned off, and at the same time, the electric valve and the back-blowing device 4 are turned on. The back-blowing device 4 blows away the injection molding raw materials remaining on the filter screen, and the injection molding raw materials in the casing 1 fall from the discharge port 7 to complete the filling.

[0059] When the injection molding raw materials pass through the detection and dehumidification device 6, they will come into contact with the dehumidification heater 634. When the injection molding particles are dry enough, the adhesion between the particles is small, the overall flow resistance is small, and the force applied to the main rod 6341 and the bent rod 6342 is small. At this time, the main rod 6341 does not deflect. When the dryness of the injection molding particles is unqualified, the moist granular raw materials have high adhesion and flow resistance, and the particles are prone to clumping. At this time, the main rod 6341 and the bent rod 6342 are subjected to a large force. Under the action of the flow force, the main rod 6341 deflects toward the feed pipe 8 and around the rotating rod 6331. The main rod 6341 drives the transmission half gear 6344 to rotate, and the transmission half gear 6344 drives the rack 951 to slide. The rack 951 drives the slide 954 to slide in the detection housing 91 and squeeze the second spring 94. After the second spring 94 is compressed, the elastic force on the pressing plate 93 increases, and the pressing plate 93 transmits the elastic force to the piezoelectric ceramic 92. The piezoelectric ceramic 92 is compressed to generate an electric charge, and the charge is transmitted to the control system through the wire. The wetter the injection molded particles are, the greater the force applied to the main rod 6341 and the bent rod 6342, the greater the deflection of the main rod 6341, the greater the displacement of the rack 951, the greater the pressure applied to the piezoelectric ceramic 92, and the stronger the electrical signal. The control system determines the moisture regain of the particles based on the strength of the electrical signal.

[0060] When the control system detects that the injection molding particles are unsatisfactory in terms of dryness, it turns on the second motor 631 and the second electric heating assembly, and adjusts the corresponding motor speed and heating temperature according to the degree of moisture regain of the particles. The second electric heating assembly heats the main rod 6341 and the curved rod 6342. The output shaft of the second motor 631 drives the second gear 632 to rotate, which in turn drives the second gear ring 6332 to rotate, which in turn drives the breaking ring 633 to rotate, which in turn drives the breaking heater 634 to rotate. The main rod 6341, the curved rod 6342, and the breaking needle 6343 thereon heat and stir the moisture regained particles, ensuring that the moisture regained particles are fully purged and dried by the hot air flow. As the detector 9 rotates with the breaking ring 633, the ball 953 on the push head 952 slides within the groove 641. The ball 953 always maintains contact with the air inlet ring 64, thereby ensuring that the purge chamber 611 remains open when the rack 951 rotates. When the inside of the shell 61 is clogged by clumping particles, the clumped particles are close to the breaking heater 634 under the action of the negative pressure suction of the casing 1, and the rotating breaking needles 6343 effectively break the clumped particles, and the clumped particles are broken while drying.

[0061] When the main rod 6341 drives the rack 951 to slide, the rack 951 synchronously drives the push head 952 to extend forward, and the push head 952 drives the ball 953 to push the intake ring 64, so that the intake ring 64 overcomes the elastic force of the first spring 65 and slides. After the intake ring 64 slides, a gap is generated between the pressure ring 642 on the intake ring 64 and the breaking ring 633, and the purge chamber 611 is opened. The size of the opened gap changes adaptively with the displacement of the rack 951. The larger the gap, the more hot air enters and the more obvious the drying effect.

[0062] When the control system detects that the injection molding particles are unqualified for dryness, it automatically turns on the first motor 621 and the first electric heating component, and adjusts the corresponding motor speed and heating temperature according to the degree of moisture regain of the particles. The first electric heating component generates heat in the heating ring 626, which heats the surrounding air. The output shaft of the first motor 621 drives the first gear 622 to rotate, which in turn drives the first gear ring 627 to rotate. The first gear ring 627 drives the entire drying ring 623 to rotate. The fan blades 625 on the drying ring 623 drive the hot air in the purge chamber 611 to flow, allowing the hot air to enter the material ring 614 from the gap between the pressure ring 642 and the breaking ring 633, purging and heating the injection molding particles passing through. After the air in the purge chamber 611 flows out, the outside air enters the purge chamber 611 through the second filter screen to replenish it. The second filter screen filters the outside air to ensure the cleanliness of the air and prevent contamination of the internal injection molding particles.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A vacuum filling machine with automatic detection function, characterized in that: The vacuum filling machine comprises a casing (1), a control box (2) is installed on one side of the casing (1), a feed pipe (8) is installed on the casing (1), a detection and dehumidification device (6) is connected to the feed pipe (8), a discharge port (7) is installed at the bottom of the casing (1), an electric valve is provided at the discharge port (7), a vacuum generating device (3) is installed in the casing (1), a back-blowing device (4) is installed in the casing (1), a filter rack (5) is installed in the casing (1), and a first filter is installed on the filter rack (5); The detection and dehumidification device (6) comprises a housing (61), a material ring (614) is provided in the housing (61), a feed port (613) is provided on the housing (61), a pipeline is connected to the feed port (613), a filter ring frame (612) is provided on the housing (61), a second filter is provided on the filter ring frame (612), the housing (61) is connected to the feed pipe (8), a purge chamber (611) is provided in the housing (61), and the filter ring frame (612) is located at the air inlet of the purge chamber (611); The detection and dehumidification device (6) further comprises a detection and breaking device (63), a drying device (62) and an air intake ring (64); the detection and breaking device (63) is installed in the housing (61); the drying device (62) is installed in the housing (61); the air intake ring (64) is slidably installed on the material ring (614); a first spring (65) is installed between the air intake ring (64) and the material ring (614); the air intake ring (64) is in contact with the detection and breaking device (63); and the air intake ring (64) is located at the air outlet of the purge chamber (611); The detection and breaking device (63) comprises a breaking ring (633) and a second motor (631), wherein the second motor (631) is installed in the housing (61), and a second gear (632) is installed on the output shaft of the second motor (631). The breaking ring (633) is rotatably installed in the housing (61), a second gear ring (6332) is provided on the breaking ring (633), and a rotating rod (6331) is provided on the breaking ring (633), the second gear (632) and the second gear ring (6332) are meshed and transmitted, and a breaking heater (634) is rotatably installed on the rotating rod (6331), a detector (9) is installed in the breaking ring (633), the breaking heater (634) and the detector (9) are meshed and transmitted, and the breaking ring (633) is in contact with the intake ring (64).

2. The vacuum filling machine with automatic detection function according to claim 1, characterized in that: The drying device (62) comprises a drying ring (623) and a first motor (621); the drying ring (623) is rotatably mounted in the housing (61); the first motor (621) is mounted in the housing (61); a first gear (622) is mounted on the output shaft of the first motor (621); the first gear (622) is meshed with the drying ring (623) for transmission; the drying ring (623) is rotatably connected to the material ring (614); and the drying ring (623) is located in the purge chamber (611).

3. The vacuum filling machine with automatic detection function according to claim 2, characterized in that: The drying ring (623) includes a rotating ring (624), the rotating ring (624) is rotatably connected to the material ring (614), a plurality of fan blades (625) are installed on the rotating ring (624), a heating ring (626) is installed on the fan blades (625), a first electric heating component is provided in the heating ring (626), a first gear ring (627) is installed on the heating ring (626), the first gear ring (627) is rotatably connected to the housing (61), and the first gear ring (627) is meshed with the first gear (622) for transmission.

4. The vacuum filling machine with automatic detection function according to claim 3, characterized in that: The breaking heater (634) includes a main rod (6341), the main rod (6341) is rotatably mounted on the rotating rod (6331), the main rod (6341) is provided with a transmission half gear (6344), the transmission half gear (6344) is engaged with the detector (9) for transmission, the main rod (6341) is provided with a plurality of curved rods (6342), the lengths of the curved rods (6342) decrease in sequence, the curved rods (6342) and the main rod (6341) are both provided with breaking needles (6343), and a second electric heating component is provided in the curved rod (6342) and the main rod (6341).

5. The vacuum filling machine with automatic detection function according to claim 4, characterized in that: The detector (9) comprises a detection housing (91) and a transmission member (95), wherein the detection housing (91) is installed in a breaking ring (633), the transmission member (95) is slidably installed in the breaking ring (633), the transmission member (95) is slidably connected to the detection housing (91), a piezoelectric ceramic (92) is installed in the detection housing (91), a pressing plate (93) is slidably installed in the detection housing (91), the pressing plate (93) is fitted with the piezoelectric ceramic (92), a second spring (94) is provided between the transmission member (95) and the pressing plate (93), and the transmission member (95) is meshed with the transmission half gear (6344) for transmission.

6. The vacuum filling machine with automatic detection function according to claim 5, characterized in that: The transmission member (95) includes a rack (951), the rack (951) is meshed with the transmission half gear (6344) for transmission, the rack (951) is slidably installed in the breaking ring (633), a slide (954) is installed on the rack (951), the slide (954) is slidably connected to the detection housing (91), a second spring (94) is installed between the slide (954) and the pressing plate (93), a push head (952) is installed at one end of the rack (951), a ball (953) is rotatably installed on the push head (952), and the ball (953) is engaged with the intake ring (64).

7. The vacuum filling machine with automatic detection function according to claim 6, characterized in that: The air intake ring (64) is provided with a groove (641), the ball (953) is engaged with the groove (641), a pressure ring (642) is provided on one side of the air intake ring (64), the pressure ring (642) is tightly fitted with one side of the breaking ring (633), a plurality of slide rods (643) are provided on the air intake ring (64), the slide rods (643) are slidably connected to the material ring (614), and a first spring (65) is installed between the slide rods (643) and the material ring (614).

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