A hot cut nozzle recovery apparatus

Abstract

The application discloses a hot cutting nozzle recycling device and relates to the technical field of injection molding part waste recycling devices.The hot cutting nozzle recycling device comprises a mounting plate, an adapter plate and a functional plate, the mounting plate is installed on an injection molding machine, the adapter plate is connected between the mounting plate and the functional plate, and a power structure is installed on the mounting plate; the power structure comprises a motor and a rotating shaft, a cam is arranged on the rotating shaft, the cam drives a transverse reciprocating structure to run through rotation, a cylinder is fixedly installed on the adapter plate, and an output shaft of the cylinder is connected to a nozzle clamping structure; the nozzle clamping structure comprises clamping structure one and clamping structure two, and a vertical reciprocating structure is arranged on the outer side of the clamping structure two. The multiple sets of cutting pieces arranged in the application can efficiently cut the connection between multiple branch flow channels and a main flow channel at the same time, the tree-shaped structure of nozzle material is divided into shorter segmented structures, recycling is facilitated, and the subsequent crushing process and the like can be facilitated, and in particular, the nozzle material is not hooked on the product.

Description

A hot-cut sprue recycling device Technical Field

[0001] This invention relates to the technical field of equipment for recycling waste from injection molded parts, specifically a hot-cut gate recycling device. Background Technology

[0002] In-mold heat cutting, also known as "in-mold cutting" in China, is an advanced injection molding process. In traditional plastic molds, after the mold is opened, the product and the gate are connected and need to be separated in two processes. In-mold heat cutting molds separate the gate in advance before the mold is opened, avoiding secondary processing of the product. The combined process is conducive to production automation.

[0003] In in-mold hot-cut injection molding, although the cutter achieves in-situ separation of the part and the sprue, some problems still exist in the recycling process after ejection. First, the sprues (including the tree-like structure formed by the main runner and branch runners) tend to entangle with each other during recycling due to their structure. The sprue material includes a main runner with a diameter of Φ8-15mm and 2-8 branch runners (length 150-400mm), forming a spatial tree-like structure. When stacked after ejection, the branch runners hook each other (the measured entanglement probability is >65%). Due to entanglement and hooking, the space utilization rate of the recycled material per unit space is extremely low, and subsequent separation and crushing are also more difficult due to the entanglement. Second, there is the problem of robot separation failure. Even when using two robots to grab the part and the sprue separately, the branch runners will still hook the part, causing some parts to be mistakenly pulled into the waste area. Summary of the Invention

[0004] The purpose of this invention is to provide a hot-cut sprue recycling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hot-cut sprue recycling device, comprising a mounting plate, an adapter plate, and a functional plate, wherein the mounting plate is mounted on an injection molding machine, the adapter plate is connected between the mounting plate and the functional plate, and a power structure is mounted on the mounting plate;

[0006] The power structure includes a motor and a rotating shaft. A cam is provided on the transmission shaft, and the cam drives the transverse reciprocating structure to run by rotating.

[0007] The transverse reciprocating structure includes a reciprocating seat and a transverse cutting blade, with both ends of the transverse cutting blade fixedly mounted on the reciprocating seat;

[0008] A cylinder is fixedly mounted on the adapter plate, and the output shaft of the cylinder is connected to the sprue clamping structure.

[0009] The sprue clamping structure includes clamping structure one and clamping structure two, which are respectively fixedly clamped to the three ends of the sprue.

[0010] The outer side of the clamping structure two is provided with a vertical reciprocating structure, which includes an inclined slide and a vertical cutting blade, and the vertical cutting blade is fixedly installed on the inclined slide.

[0011] Preferably, the motor is fixedly mounted on the mounting plate via a motor mounting plate.

[0012] Preferably, the drive shaft is provided with a bearing seat, the bearing seat is fixedly mounted on the mounting plate, the end of the drive shaft is provided with a swing arm, and the end of the swing arm is provided with a swing rod.

[0013] Preferably, the head of the reciprocating seat is provided with a boss, the side of the reciprocating seat is provided with a spring, the spring is mounted on a guide rod, and the guide rod passes through the reciprocating seat and is fixedly mounted at both ends in the functional plate.

[0014] Preferably, the transverse cutting blades comprise four groups, which are arranged obliquely on the reciprocating seat with equal vertical and horizontal spacing.

[0015] Preferably, the clamping structure includes a fixed base and a clamping clamp. The top of the fixed base is fixedly mounted on a connecting seat, and the connecting seat is fixedly connected to the output shaft of the cylinder. The clamping clamp is adjustablely mounted inside the fixed base and is used to clamp the main channel of the water inlet.

[0016] Preferably, the second clamping structure includes two sets symmetrically arranged on both sides of the first clamping structure. The second clamping structure includes a second fixed base and a second clamping clamp. The second clamping clamp is adjustablely installed in the second fixed base and is used to clamp the diversion channel of the water inlet. The second fixed base is U-shaped and surrounds the outside of the reciprocating seat. The second fixed base is fixedly connected to the bottom of the vertical connecting plate, and the top of the vertical connecting plate is fixedly connected to the connecting seat.

[0017] Preferably, the top of the inclined slide is provided with a drive rod, which is slidably connected to the swing arm through a sliding sleeve, and a guide hole is provided at the middle position of the inclined slide, which is in slidable contact with the inclined guide post.

[0018] Preferably, the top of the inclined guide post is fixedly connected to the functional plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention utilizes a single power source to synchronously drive horizontal and vertical cutting via a cam mechanism and a transmission mechanism. This significantly shortens the sprue separation time and improves efficiency.

[0021] 2. This invention ensures that the sprue is firmly fixed by the sprue clamping structure throughout the cutting process, preventing shaking or loosening, thus guaranteeing cutting accuracy and reliability, which is especially crucial for soft, hot plastics;

[0022] 3. The multiple sets of cutting blades in this invention can efficiently cut off the connection between multiple branch channels and the main channel at the same time. By cutting off the main channel and branch channels, the tree-like structure of the sprue material can be divided into shorter segments, which not only facilitates recycling but also helps subsequent crushing and other processes, especially by preventing the product from getting caught. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the structure of the present invention;

[0024] Figure 2 is a top view of the present invention;

[0025] Figure 3 is the front view of Figure 2;

[0026] Figure 4 is a cross-sectional view of section AA in Figure 3;

[0027] Figure 5 is an enlarged view of the structure at point B in Figure 4;

[0028] Figure 6 is a schematic diagram of the structure of the present invention.

[0029] In the diagram: 1 - Mounting plate;

[0030] 2-Adapter board;

[0031] 3-Functional board;

[0032] 4-Power structure;

[0033] 41-Motor;

[0034] 42-Drive shaft;

[0035] 43-Cam;

[0036] 44-Swing arm;

[0037] 45-Swing arm;

[0038] 5- Lateral reciprocating structure;

[0039] 51-Reciprocating seat;

[0040] 511 - Boss;

[0041] 52-Transverse cutting disc;

[0042] 53 - Spring;

[0043] 54-Guide rod;

[0044] 6-cylinder;

[0045] 7-Gate clamping structure;

[0046] 71-Clamping Structure One;

[0047] 711-Fixed Base One;

[0048] 712-Clamping Pliers One;

[0049] 72-Clamping Structure Two;

[0050] 721-Fixed Base II;

[0051] 722-Clamping Pliers II;

[0052] 73-Connector;

[0053] 723-Vertical Connecting Plate;

[0054] 8-Vertical reciprocating structure;

[0055] 81-Slanted slide;

[0056] 811-Drive lever;

[0057] 82-Vertical cutting disc;

[0058] 83-Angled guide post. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0060] Please refer to Figures 1 to 6. The present invention provides a technical solution: a hot-cut sprue recycling device, including a mounting plate 1, an adapter plate 2 and a functional plate 3. The mounting plate 1 is mounted on an injection molding machine, the adapter plate 2 is connected between the mounting plate 1 and the functional plate 3, and a power structure 4 is mounted on the mounting plate 1.

[0061] The power structure 4 includes a motor 41 and a rotating shaft 42. A cam 43 is provided on the transmission shaft 42. The cam 43 drives the transverse reciprocating structure 5 to run by rotating. The continuous operation of the motor 41 can drive the rotating shaft 42 to rotate, thereby driving the cam 43 to work.

[0062] The transverse reciprocating structure 5 includes a reciprocating seat 51 and a transverse cutting blade 52, with both ends of the transverse cutting blade 52 fixedly mounted on the reciprocating seat 51;

[0063] A cylinder 6 is fixedly installed on the adapter plate 2, and the output shaft of the cylinder 6 is connected to the sprue clamping structure 7.

[0064] The sprue clamping structure 7 includes a first clamping structure 71 and a second clamping structure 72. The first clamping structure 71 and the second clamping structure 72 are respectively fixedly clamped at the three ends of the sprue. The first clamping structure 71 is used to clamp the main channel and the second clamping structure 72 is used to clamp the two ends of the second channel. Through the three-point clamping, a very stable clamping force is provided to prevent the sprue from shaking and falling off during cutting.

[0065] The clamping structure 72 has a vertical reciprocating structure 8 on its outer side. The vertical reciprocating structure 8 includes an inclined slide 81 and a vertical cutting blade 82. The vertical cutting blade 82 is fixedly installed on the inclined slide 81.

[0066] In this embodiment, the motor 41 is fixedly mounted on the mounting plate 1 via a motor mounting plate.

[0067] In this embodiment, the transmission shaft 42 is provided with a bearing seat, which is fixedly mounted on the mounting plate 1. The end of the transmission shaft 42 is provided with a swing arm 44, and the end of the swing arm 44 is provided with a swing rod 45. The swing arm 44 is driven to rotate in a circle by the rotation of the rotating shaft 42, so that the swing rod 45 at the end starts to rotate.

[0068] In this embodiment, the head of the reciprocating seat 51 is provided with a boss 511, and the side of the reciprocating seat 51 is provided with a spring 53. The spring 53 is mounted on the guide rod 54. The guide rod 54 passes through the reciprocating seat 51 and is fixedly mounted at both ends in the functional plate 3. The boss 511 on the reciprocating seat 51 is periodically pushed / released by the rotation of the cam 43, thereby causing the reciprocating seat 51 to perform horizontal reciprocating linear motion along the guide rod 54.

[0069] Spring 53 provides restoring force to ensure that boss 511 is always in contact with the profile of cam 43.

[0070] In this embodiment, the transverse cutting blades 52 include four groups. The four groups of transverse cutting blades 52 are diagonally arranged with equal vertical and horizontal spacing on the reciprocating seat 51. The number of transverse cutting blades 52 can also be increased or decreased as needed. The arrangement of multiple transverse cutting blades 52 expands the cutting range, realizes multiple points of staggered cutting, reduces the force during cutting, and enables the main channel of the sprue to be cut into shorter segments.

[0071] In this embodiment, the clamping structure 71 includes a fixed base 711 and a clamping clamp 712. The top of the fixed base 711 is fixedly mounted on a connecting base 73, and the connecting base 73 is fixedly connected to the output shaft of the cylinder 6. The clamping clamp 712 is adjustablely mounted inside the fixed base 711 and is used to clamp the main channel of the water inlet. The second clamping structure 72 includes two sets symmetrically arranged on both sides of the first clamping structure 71. The second clamping structure 72 includes a second fixing seat 721 and a second clamping clamp 722. The second clamping clamp 722 is adjustablely installed in the second fixing seat 721 and is used to clamp the sprue's branch channel. The second fixing seat 721 is U-shaped and surrounds the outside of the reciprocating seat 51. The second fixing seat 721 is fixedly connected to the bottom of the vertical connecting plate 723. The top of the vertical connecting plate 723 is fixedly connected to the connecting seat 73. The first clamping clamp 712 clamps the root of the main channel. The two sets of second clamping clamps 722 simultaneously clamp the end of the branch channel, completing the rigid fixation of the sprue. The three-point clamping provides a very stable clamping force to prevent the sprue from shaking and falling off during cutting.

[0072] The U-shaped clamping structure 2.72 cleverly avoids the path of the lateral cutting motion.

[0073] Adjustable clamps are designed to accommodate different product sprue sizes.

[0074] Through the connecting seat 73 and the vertical connecting plate 723, the lifting and lowering motion of the cylinder 6 is synchronously transmitted to the entire clamping structure, realizing synchronous clamping of the sprue.

[0075] In this embodiment, the top of the inclined slide 81 is provided with a drive rod 811, which is slidably connected to the swing rod 45 through a sliding sleeve. A guide hole is provided at the middle position of the inclined slide 81, and the guide hole slides in contact with the inclined guide post 83. The swing rod 45 swings under the drive of the swing arm 44, and the drive rod 811 pushes the inclined slide 81 to move, so that the guide hole on the inclined slide 81 moves in a reciprocating linear motion along the inclined angle of the inclined guide post 83 under the constraint of the fixed inclined guide post 83, thereby driving the vertical cutting blade 82 to perform an oblique reciprocating cutting motion.

[0076] In this embodiment, the top of the inclined guide post 83 is fixedly connected to the functional plate 3.

[0077] Working principle: It includes the following working steps:

[0078] 1. Equipment installation and positioning: The entire device is fixed to the top of the injection molding machine by mounting plate 1.

[0079] 2. Mold Opening and Clamping: After injection molding is completed, the mold is opened. Before the sprue and product are finalized, the entire equipment is triggered to start via an external signal.

[0080] The cylinder 6 extends and drives the entire clamping structure 7 to move into the mold, and the hot-cut gate is firmly clamped by clamping clamp 71 and clamping clamp 72.

[0081] 3. Synchronous cutting: Cutting occurs after the cylinder clamping action is in place.

[0082] 3.1 Horizontal cutting: The motor 41 starts and causes the cam 43 to rotate, driving the reciprocating seat 51 to move horizontally back and forth, which in turn drives the multiple sets of horizontal cutting blades 52 arranged obliquely on it to cut the main channel from bottom to top and segment it.

[0083] 3.2 Vertical cutting: The same motor 41 drives the rod 811 to move through the transmission shaft 42, the swing arm 44, and the swing rod 45. The inclined slide 81 reciprocates obliquely under the guidance of the inclined guide post 83, which drives the vertical cutting blade 82 to cut the flow channel.

[0084] 4. Recycling: After the horizontal and vertical cutting is completed instantly, the cut waste material automatically falls into the recycling bin or other equipment below, and the clamping clamps open to release the clamped sprue material block.

[0085] 5. Reset: All parts of the equipment return to their initial positions, awaiting the next injection molding cycle.

[0086] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative and not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A hot-cut sprue recycling device, characterized in that: The system includes a mounting plate (1), an adapter plate (2), and a function plate (3). The mounting plate (1) is mounted on the injection molding machine, and the adapter plate (2) connects the mounting plate (1) and the function plate (3). A power structure (4) is mounted on the mounting plate (1). The power structure (4) includes a motor (41) and a transmission shaft (42). A cam (43) is provided on the transmission shaft (42). The cam (43) drives a transverse reciprocating structure (5) to run by rotating. The transverse reciprocating structure (5) includes a reciprocating seat (51) and a transverse cutting blade (52). The two ends of the transverse cutting blade (52) are fixedly mounted on the reciprocating seat (51). A cylinder (6) is fixedly installed on the connecting plate (2), and the output shaft of the cylinder (6) is connected to the sprue clamping structure (7); the sprue clamping structure (7) includes a clamping structure one (71) and a clamping structure two (72), which are respectively fixedly clamped at the three ends of the sprue; a vertical reciprocating structure (8) is provided on the outside of the clamping structure two (72), which includes an inclined slide (81) and a vertical cutting blade (82), which is fixedly installed on the inclined slide (81); the head of the reciprocating seat (51) is provided with a boss (511), and the reciprocating seat (51) is provided with a boss (511). 1) A spring (53) is provided on the side, the spring (53) is mounted on the guide rod (54), the guide rod (54) passes through the reciprocating seat (51) and is fixedly mounted at both ends in the function plate (3); the transverse cutting blade (52) includes four sets, the four sets of transverse cutting blades (52) are arranged diagonally on the reciprocating seat (51) with equal vertical and horizontal spacing; the clamping structure one (71) includes a fixed seat one (711) and a clamping clamp one (712), the top of the fixed seat one (711) is fixedly mounted on the connecting seat (73), the connecting seat (73) is fixedly connected to the output shaft of the cylinder (6), and the clamping clamp one (712) is adjustable. The section is installed in the fixed seat one (711) and is used to clamp the main channel of the water outlet; the clamping structure two (72) includes two sets symmetrically arranged on both sides of the clamping structure one (71), the clamping structure two (72) includes the fixed seat two (721) and the clamping clamp two (722), the clamping clamp two (722) is adjustablely installed in the fixed seat two (721) and is used to clamp the branch channel of the water outlet, the fixed seat two (721) is U-shaped and surrounds the outside of the reciprocating seat (51), the fixed seat two (721) is fixedly connected to the bottom of the vertical connecting plate (723), and the top of the vertical connecting plate (723) is fixedly connected to the connecting seat (73).

2. The hot-cut sprue recycling device according to claim 1, characterized in that: The motor (41) is fixedly mounted on the mounting plate (1) by the motor mounting plate.

3. The hot-cut sprue recycling device according to claim 2, characterized in that: The drive shaft (42) is provided with a bearing seat, which is fixedly installed on the mounting plate (1). The end of the drive shaft (42) is provided with a swing arm (44), and the end of the swing arm (44) is provided with a swing rod (45).

4. The hot-cut sprue recycling device according to claim 3, characterized in that: The top of the inclined slide (81) is provided with a drive rod (811), which is slidably connected to the swing rod (45) through a sliding sleeve. A guide hole is provided at the middle position of the inclined slide (81), and the guide hole is in sliding contact with the inclined guide post (83).

5. The hot-cut sprue recycling device according to claim 4, characterized in that: The top of the inclined guide post (83) is fixedly connected to the functional plate (3).

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