Injection molding machine with waste recycling function

Abstract

The application discloses a injection molding machine with waste recycling function and relates to the technical field of injection molding machines, which comprises a base, an injection pipe mounted on the base, a connecting plate arranged on a mechanical arm, a driving mechanism arranged on the connecting plate, a sliding pipe arranged on the connecting plate in a sliding mode, a friction ring rotatably arranged on the sliding pipe, a plurality of saw blades fixedly arranged on the friction ring in a gradually-diameter-reducing mode, a fan blade fixedly arranged on the inner wall of the friction ring and used for rotating with the friction ring to generate air flow, a motor-driven push rod fixedly arranged on the connecting plate, a servo motor fixedly arranged on the output end of the motor-driven push rod and fixedly connected with the sliding pipe. When the water gap waste is cut, the saw blades are close to the injection molding part, air flow generated by the rotation of the fan blade driven by the friction ring generates suction force, so that the injection molding part is sucked out of the mold, and the material falling is rapidly performed.

Description

Technical Field

[0001] This invention relates to the field of injection molding machine technology, and more specifically to an injection molding machine with waste recycling function. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection machines, are the main molding equipment used to make various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are divided into vertical, horizontal, and all-electric types. Injection molding machines heat the plastic and apply high pressure to the molten plastic, causing it to be injected and fill the mold cavity.

[0003] For example, Chinese patent application number CN202410544917.1 applies to the field of injection molding machine nozzle cleaning technology. The device includes a machine body and a storage tank. An injection barrel is fixed to one side of the machine body, an injection platform is provided to one side of the injection barrel, and an injection mold is fixed to one side of the injection platform. A central tube is threaded to one side of the injection mold, and a tee is connected to one side of the central tube. A hydraulic gauge is connected to the central tube. An injection pipeline is provided between the nozzle, the injection mold, and the injection platform. The injection pipeline includes a first injection pipeline, a second injection pipeline, and a third injection pipeline. A hydraulic gauge is installed on both the first and second injection pipelines. A cleaning component is provided on the side of the injection barrel near the nozzle. A second fixing plate is fixed to one side of the first fixing plate. The first fixing plate has left and right first and second through holes. This device improves the efficiency and quality of cleaning residual injection material at the spray nozzle.

[0004] Existing injection molding machines, including those described in the aforementioned patent, generate sprue waste on the molded parts after the molten plastic is injected into the mold cavity and cools and solidifies. This waste is usually in the form of long strips. Existing injection molding machines typically handle this waste by cutting it in subsequent processes, which extends the overall processing time and increases the number of processing lines. This increases the number of processing steps, resulting in generally low efficiency and difficulty in improving performance. Summary of the Invention

[0005] The purpose of this invention is to provide an injection molding machine with waste recycling function to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an injection molding machine with waste recycling function, comprising a base and an injection tube mounted thereon, and further comprising: a connecting plate disposed on a robotic arm; a drive mechanism disposed on the connecting plate; a slide tube slidably disposed on the connecting plate, and a friction ring rotatably mounted on the slide tube, wherein a plurality of saw blades are fixedly mounted on the friction ring, and the saw blades are arranged with varying diameters in sequence; and a fan blade fixedly mounted on the inner wall of the friction ring for rotating with the friction ring to generate airflow.

[0007] Preferably, the drive mechanism includes an electric push rod fixedly mounted on the connecting plate, and a servo motor is fixedly mounted on the output end of the electric push rod, and the servo motor is fixedly connected to the slide tube.

[0008] Preferably, a friction wheel is fixedly mounted on the servo motor, and the friction wheel and the friction ring are in contact.

[0009] Preferably, a connecting rod is fixedly installed on the friction ring, and a mounting hole is provided on the saw blade.

[0010] As a preferred option, epitaxial wafers are also included;

[0011] The epitaxial sheet is fixedly installed at one end of the connecting rod.

[0012] Preferably, a protrusion is slidably mounted on the epitaxial sheet along the axial direction of the slide tube.

[0013] Preferably, a fixing rod is fixedly installed on the inner wall of the slide tube, and a connecting strip is fixedly installed on the end of the fixing rod away from the connecting plate, and an extension tube is fixedly installed on the connecting strip.

[0014] Preferably, the bump is T-shaped, and a spring is fixedly installed between the bump and the outer edge;

[0015] An abutment strip and a ring are slidably mounted on the extension tube along its axial direction. The ring is sleeved on the extension tube, while the abutment strip is located inside the extension tube, and the abutment strip and the ring are fixedly connected.

[0016] Preferably, a rubber pad is provided at the end of the extension tube away from the slide tube.

[0017] In the above technical solution, the present invention provides an injection molding machine with waste recycling function, which has the following beneficial effects: After injection molding is completed, the connecting plate can be driven to descend by the robotic arm, thereby causing the connecting plate to drive the slide tube and several saw blades to descend. At the same time, the drive mechanism is activated. At this time, the drive mechanism will drive several saw blades to rotate rapidly to cut. As the saw blades approach the sprue waste part on the injection molded part, the leftmost saw blade will cut the part of the sprue waste first, until the middle saw blade contacts and then cuts it again. At this time, the long strip of sprue waste is turned into several small pieces by the sequential cutting of several saw blades, so that it can be directly reused after recycling without further crushing.

[0018] At the same time, when the sprue waste is cut, the saw blade gets close to the injection molded part. At this time, the airflow generated by the friction ring driving the fan blade will generate suction, thereby causing the injection molded part to be sucked out of the mold for rapid material removal. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a three-dimensional structural schematic diagram provided for an embodiment of the present invention;

[0021] Figure 2 This is a partial structural schematic diagram of a saw blade provided in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the dispersed state structure of several saw blades provided in an embodiment of the present invention;

[0023] Figure 4 This is a partial structural schematic diagram of the slide tube provided in an embodiment of the present invention;

[0024] Figure 5 Provided for embodiments of the present invention Figure 4 Schematic diagram of Part A;

[0025] Figure 6-7 These are partial structural schematic diagrams of the protrusions provided in the embodiments of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Base; 2. Injection tube; 3. Material cylinder; 4. Drop plate; 51. Connecting plate; 52. Electric push rod; 53. Servo motor; 54. Slide tube; 55. Friction wheel; 56. Friction ring; 57. Connecting rod; 58. Extension tube; 59. Fixing rod; 510. Connecting strip; 511. Fan blade; 61. Saw blade; 62. Extension plate; 63. Protrusion; 631. Inclined surface; 64. Spring; 65. Abutment strip; 66. Ring. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Please see Figure 1-7 An injection molding machine with waste recycling function includes a base 1 and an injection tube 2 mounted thereon, wherein the injection tube 2 is connected to a material cylinder 3, and further includes:

[0030] Connecting plate 51, which is mounted on the robotic arm;

[0031] The drive mechanism is located on the connecting plate 51;

[0032] The slide tube 54 is slidably mounted on the connecting plate 51, and a friction ring 56 is rotatably mounted on the slide tube 54. Several saw blades 61 are fixedly mounted on the friction ring 56, and the size of the saw blades 61 is arranged to change in sequence.

[0033] Fan blade 511 is fixedly installed on the inner wall of friction ring 56 to rotate with friction ring 56 to generate airflow;

[0034] Several saw blades 61 decrease in size sequentially in the direction away from the connecting plate 51. After injection molding, the connecting plate 51 can be lowered by a robotic arm, which in turn causes the slide tube 54 and several saw blades 61 to descend. At the same time, the drive mechanism is activated, which drives the saw blades 61 to rotate rapidly for cutting. As the saw blades 61 approach the sprue waste area on the injection molded part, a reference... Figure 3 The leftmost saw blade 61 will first cut the sprue waste until the middle saw blade 61 contacts it and then cut it again. At this time, through the sequential cutting of several saw blades 61, the long strip of sprue waste is turned into several small pieces, so that it can be directly reused after recycling without further crushing.

[0035] At the same time, when the sprue waste is cut, the saw blade 61 approaches the injection molded part. At this time, the airflow generated by the friction ring 56 driving the fan blade 511 to rotate will generate suction, thereby causing the injection molded part to be sucked out of the mold for rapid material removal.

[0036] In another embodiment of the present invention: the driving mechanism includes an electric push rod 52 fixedly mounted on the connecting plate 51, and a servo motor 53 fixedly mounted on the output end of the electric push rod 52. The servo motor 53 and the slide tube 54 are fixedly connected.

[0037] The electric push rod 52 can drive the slide rod to move horizontally, thereby bringing the slide tube 54 closer to the injection molded part, so that the suction force generated by the fan blade 511 can more easily affect the injection molded part.

[0038] In another embodiment of the present invention: a friction wheel 55 is fixedly mounted on the servo motor 53, and the friction wheel 55 and the friction ring 56 are in contact;

[0039] The servo motor 53 is started, which drives the friction wheel 55 to rotate. The friction wheel 55 can be driven to rotate, and the rotation of the friction wheel 55 will drive several saw blades 61 and extension blades 62 to rotate for cutting and grinding.

[0040] Furthermore, the friction wheel 55 can be a gear, and the friction ring 56 can have grooves to cooperate with the gear, making it easier for the servo motor 53 to drive the friction ring 56 to rotate.

[0041] In another embodiment of the present invention: a connecting rod 57 is fixedly installed on the friction ring 56, and a mounting hole is provided on the saw blade 61;

[0042] The connecting rod 57 passes through the mounting hole to fix and connect several saw teeth.

[0043] In another embodiment of the present invention, an epitaxial wafer 62 is also included;

[0044] The outer epitaxial sheet 62 is fixedly installed at one end of the connecting rod 57;

[0045] The outer periphery of the extension plate 62 is fixedly equipped with saw teeth. When the connecting plate 51 moves from top to bottom, after the sprue waste is cut by several saw blades 61, the extension plate 62, in conjunction with the saw teeth, is equivalent to the last saw blade 61 to cut the innermost part of the sprue waste. The extension plate 62 fits the sprue waste better and is easier to cut off.

[0046] In another embodiment of the present invention: a protrusion 63 is slidably mounted on the epitaxial sheet 62 along the axial direction of the slide tube 54;

[0047] Since the epitaxial sheet 62 is closest to the injection molded part, its thickness means that the serrations on its outer periphery will still leave a large amount of waste material during cutting. At this time, the protrusion 63 is set on the plane of the epitaxial sheet 62, so that the protrusion 63 can get closer to the injection molded part and grind the waste material protruding from the injection molded part. The edge of the protrusion 63 can be set to a relatively sharp tip, so that when the protrusion 63 comes into contact with the waste material, it will cut it off and grind it.

[0048] In a further embodiment, the surface of the protrusion 63 is provided with a bevel 631. When the protrusion 63 comes into contact with the sprue waste, the contact is made through the bevel 631, thereby making the grinding effect better and making it less likely for the protrusion 63 to hit the injection molded part through the sprue waste.

[0049] In another embodiment of the present invention: a fixing rod 59 is fixedly installed on the inner wall of the slide tube 54, a connecting strip 510 is fixedly installed on the end of the fixing rod 59 away from the connecting plate 51, and an extension tube 58 is fixedly installed on the connecting strip 510;

[0050] The friction ring 56 is located between the slide tube 54 and the extension tube 58. When the friction ring 56 rotates, it will drive the saw blade 61 and the outer extension plate 62 to rotate through the connecting rod 57. The extension tube 58 is fixed to the slide tube 54 through the connecting strip 510 and the fixing rod 59. This ensures that the extension tube 58 remains stable when the friction ring 56 drives the fan blade 511 and the saw blade 61 to rotate. When the fan blade 511 rotates and generates suction, the extension tube 58 brings it closer to the injection molded part, thus making the suction have a greater impact on the injection molded part and making it easier to pick it up.

[0051] In another embodiment of the present invention: the protrusion 63 is T-shaped, and a spring 64 is fixedly installed between the protrusion 63 and the outer extension sheet 62;

[0052] An abutment strip 65 and a ring 66 are slidably mounted on the extension tube 58 along its axial direction. The ring 66 is sleeved on the extension tube 58, while the abutment strip 65 is located inside the extension tube 58, and the abutment strip 65 and the ring 66 are fixedly connected.

[0053] The electric push rod 52 can push the slide tube 54 and extension tube 58 closer to the injection molded part. At the same time, the protrusion 63 will also approach the injection molded part. In order to prevent the injection molded part from contacting the protrusion 63, an abutment strip 65 is provided. The abutment strip 65 extends from the surface of the extension tube 58 and is longer than the protrusion 63. So when the abutment strip 65 contacts the injection molded part, the protrusion 63 has not yet contacted the injection molded part. Since the extension tube 58 does not rotate, the abutment strip 65 will be pressed and move into the extension tube 58. At this time, the abutment strip 65 will drive the ring 66 to move, and the ring 66 will abut the T-shaped outer end of the protrusion 63, thereby pushing the protrusion 63 away from the injection molded part. This prevents the injection molded part from contacting the protrusion 63 and avoids damage to the injection molded part. When the slide tube 54 and extension tube 58 are away from the injection molded part, the spring 64 will push the protrusion 63 to reset.

[0054] Furthermore, several protrusions 63 are arranged in strips on the outer epitaxial sheet 62 and radiate outwards. At this time, a waste channel is formed between the protrusions 63. When the protrusions 63 grind the waste material from the sprue, the extension tube 58 generates suction. At the same time, the surface of the extension tube 58 has not yet fully contacted the injection molded part. At this time, the waste channel between two adjacent protrusions 63 also approaches the injection molded part and tends to close. At this time, the airflow in the extension tube 58 will pass through the waste channel, thereby making the suction draw up the debris generated by grinding, so that the debris is sucked into the extension tube 58 and the slide tube 54. A hose can be installed at the other end of the slide tube 54 to collect the debris.

[0055] In another embodiment of the present invention: a rubber pad is provided at the end of the extension tube 58 away from the slide tube 54;

[0056] The extension tube 58 is made easier to contact the injection molded part through the rubber pad, thereby generating suction. When the injection molded part is sucked by the extension tube 58, the electric push rod 52 returns to its original position and pulls the injection molded part out. Then the servo motor 53 stops rotating. At this time, the suction disappears and the injection molded part will fall. The base 1 has a material discharge hole, and an inclined material discharge plate 4 is fixedly installed on the material discharge hole. The material discharge plate 4 has several filter holes. When the cut waste falls, it will fall into the collection box below through the filter holes, while the injection molded part will slide down through the material discharge plate 4, thus separating the injection molded part and the waste for collection.

[0057] Working Principle: In this application, after the injection molding machine finishes injection molding, the connecting plate 51 is lowered by the robotic arm. At this time, the servo motor 53 will start synchronously, thereby driving the friction wheel 55 to rotate. As the friction wheel 55 rotates, it will drive the friction ring 56 to rotate. At this time, the friction ring 56 will drive several saw blades 61 and the extension blade 62 to rotate through the connecting rod 57. At this time, several saw blades 61 with varying diameters will contact the long strip of sprue waste material, starting with the largest one. The large-sized saw blade 61 will cut first, and then several saw blades 61 will cut in sequence, thereby cutting the long strip of sprue waste material into several small segments. Therefore, compared with traditional waste recycling devices, the recycling mechanism of this application can cut the waste material into smaller segments. Small-segment material can be cut immediately, avoiding the need for subsequent crushing steps and greatly saving the process of waste disposal. At the same time, as the connecting plate 51 moves down, the outer extension plate 62, after cutting, uses the protrusion 63 on it to perform final grinding of the sprue waste, thereby minimizing the impact of the sprue waste. After cutting, the extension tube 58 can be brought close to the injection molded part by the electric push rod 52, so that the suction force generated by the fan blade 511 can hold the injection molded part. At the same time, since the abutment strip 65 is slidably installed on the extension tube 58, the rubber pad on the extension tube 58 will not be completely tightly attached to the injection molded part, leaving small gaps so that the fan blade 511 can rotate normally to generate suction force.

[0058] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An injection molding machine with waste recycling function, comprising a base (1) and an injection tube (2) mounted thereon, characterized in that, Also includes: A connecting plate (51) is mounted on the robotic arm; The drive mechanism is located on the connecting plate (51); A sliding tube (54) is slidably mounted on a connecting plate (51), and a friction ring (56) is rotatably mounted on the sliding tube (54). Several saw blades (61) are fixedly mounted on the friction ring (56), and the saw blades (61) are arranged with varying diameters in sequence. Fan blades (511) are fixedly installed on the inner wall of friction ring (56) to rotate with friction ring (56) to generate airflow; A connecting rod (57) is fixedly installed on the friction ring (56), and an installation hole is provided on the saw blade (61); It also includes epitaxial wafers (62); The epitaxial sheet (62) is fixedly installed at one end of the connecting rod (57); A protrusion (63) is slidably mounted on the epitaxial sheet (62) along the axial direction of the slide tube (54). A fixing rod (59) is fixedly installed on the inner wall of the slide tube (54). A connecting strip (510) is fixedly installed on the end of the fixing rod (59) away from the connecting plate (51). An extension tube (58) is fixedly installed on the connecting strip (510). The protrusion (63) is T-shaped, and a spring (64) is fixedly installed between the protrusion (63) and the outer extension plate (62). An abutment strip (65) and a ring (66) are slidably mounted on the extension tube (58) along its axial direction. The ring (66) is sleeved on the extension tube (58), while the abutment strip (65) is located inside the extension tube (58), and the abutment strip (65) and the ring (66) are fixedly connected.

2. The injection molding machine with waste recycling function according to claim 1, characterized in that, The drive mechanism includes an electric push rod (52) fixedly mounted on a connecting plate (51), and a servo motor (53) fixedly mounted on the output end of the electric push rod (52). The servo motor (53) and the slide tube (54) are fixedly connected.

3. The injection molding machine with waste recycling function according to claim 2, characterized in that, A friction wheel (55) is fixedly installed on the servo motor (53), and the friction wheel (55) and the friction ring (56) are in contact.

4. An injection molding machine with waste recycling function according to claim 3, characterized in that, A rubber pad is provided at the end of the extension tube (58) away from the slide tube (54).

Images