A molding device capable of adjusting the density of color master granules

Abstract

The utility model provides a kind of forming device of adjustable color master batch particle density, belong to plastic processing technical field, to solve the forming device of existing adjustable color master batch particle density, easy to wear when rotating, gear is easy to break and difficult to detect in time and the problem of vibration deviation and exacerbate wear without timely lubrication. Including double-screw extruder, driving mechanism, machine cylinder, feed hopper, drive screw, oil bottle, piston cylinder, monitoring frame, maintenance assembly and monitoring assembly, the drive screw is provided with two groups, two groups the drive screw is installed in machine cylinder interior;The oil bottle is fixedly installed on the upper portion of double-screw extruder;The piston cylinder is fixedly installed in double-screw extruder interior;The monitoring frame is provided with two groups, two groups the monitoring frame is fixedly installed in machine cylinder one end;The maintenance assembly is arranged in double-screw extruder interior;The monitoring assembly is arranged in machine cylinder one end.The utility model has the advantages of convenient maintenance, convenient to use, deviation monitoring etc..

Description

Technical Field

[0001] This utility model belongs to the field of plastic processing technology, and more specifically, it relates to a molding device with adjustable masterbatch particle density. Background Technology

[0002] Color masterbatch is a plastic colorant made by dispersing a high proportion of pigments or additives with thermoplastic resins, and it is widely used in the plastics processing industry. In the production process of color masterbatch, the raw material forming stage requires a forming device that can adjust the particle density of the masterbatch. Existing forming devices for adjustable masterbatch particle density mainly consist of a twin-screw extruder body, a drive mechanism, a barrel, and twin screws. The drive mechanism drives the twin screws inside the barrel to rotate, extruding, mixing, and heat-melting the raw material before extrusion. By adjusting the residence time and shear force of the material in the extruder, the particle density can be precisely controlled. Multiple independent heating zones and temperature controllers on the barrel enable precise temperature control during the material plasticization process, further improving the accuracy of particle density adjustment.

[0003] Existing application number CN202121103617.8 discloses an extrusion molding device for preparing color masterbatch, including a base, a processing device fixedly installed on the base, a feeding hopper fixedly installed on the side wall of the processing device, and a discharge mechanism for extruding color masterbatch on the processing device. The discharge mechanism includes a collar, which is fixedly installed on the side wall of the processing device. This invention uses the movement of a locking block to move a baffle, moving the baffle to the corresponding position of extrusion hole one and extrusion hole two. The width of the baffle is greater than the width of extrusion hole one and extrusion hole two, but it cannot simultaneously block extrusion hole one and extrusion hole two. After the baffle blocks one of the extrusion holes, the bolt is turned to fix the baffle, facilitating the processing of color masterbatch of different thicknesses. This device, by moving the baffle, enables the processing of color masterbatch of different thicknesses, greatly improving the processing range.

[0004] Based on the above, existing molding devices for adjustable masterbatch particle density mainly control the rotation of twin screws through a drive mechanism to achieve extrusion, mixing, and hot melting of raw materials. At the same time, precise control of particle density is achieved by relying on the drive mechanism to precisely regulate the rotation speed of the twin screws. However, during the rotation of the twin screws, wear and breakage of drive gears may occur, which can lead to vibration and deviation during the rotation of the twin screws. If this is not detected in time, it will aggravate equipment damage. Furthermore, sufficient lubrication needs to be ensured during the rotation of the twin screws. If lubrication is not timely, it will significantly aggravate the wear of components. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a molding device for adjustable masterbatch particle density. This addresses the shortcomings of existing adjustable masterbatch particle density molding devices, which primarily rely on a drive mechanism to control the rotation of a twin-screw to extrude, mix, and heat-melt the raw materials. While the drive mechanism precisely controls the twin-screw speed to achieve accurate particle density control, the twin-screw may experience wear and tear, such as drive gear breakage, leading to vibration and misalignment. Failure to detect these issues promptly will exacerbate equipment damage. Furthermore, adequate lubrication is crucial during twin-screw rotation; insufficient lubrication significantly accelerates component wear.

[0006] The purpose and effect of this utility model's molding device for adjusting the density of masterbatch particles are achieved by the following specific technical means:

[0007] An adjustable masterbatch particle density molding apparatus includes a twin-screw extruder, a drive mechanism, a barrel, a feed hopper, a drive screw, an oil bottle, a piston cylinder, a monitoring frame, a maintenance component, and a monitoring component. The drive mechanism is mounted on the upper part of the twin-screw extruder; the barrel is mounted on the upper part of the twin-screw extruder; the feed hopper is fixedly mounted on the upper part of the barrel; two sets of drive screws are provided, and the two sets of drive screws are installed inside the barrel; the oil bottle is fixedly mounted on the upper part of the twin-screw extruder; the piston cylinder is fixedly mounted inside the twin-screw extruder; two sets of monitoring frames are provided, and the two sets of monitoring frames are fixedly mounted at one end of the barrel; the maintenance component is located inside the twin-screw extruder; and the monitoring component is located at one end of the barrel.

[0008] Furthermore, the maintenance component includes a drive column and a trigger head, wherein the drive column is fixedly mounted on the outside of a set of drive screws; and the trigger head is threadedly connected inside the drive column.

[0009] Furthermore, the maintenance assembly also includes: an oil cap, an observation window, a first one-way valve, and a first oil pipe. The oil cap is threadedly connected to the top of the oil bottle; the observation window is fixedly installed on the front side of the oil bottle; the first one-way valve is fixedly installed on the bottom of the oil bottle; one end of the first oil pipe is fixedly installed on the bottom of the oil bottle, and the other end of the first oil pipe is fixedly installed on one side of the piston cylinder.

[0010] Furthermore, the maintenance assembly also includes: a first drive rod, an elastic element, and a piston plate, wherein the first drive rod is slidably connected inside the piston cylinder; the elastic element is fixedly installed on one side of the piston cylinder and on the outside of the first drive rod; the piston plate is slidably connected inside the piston cylinder and fixedly installed at the end of the first drive rod.

[0011] Furthermore, the maintenance assembly also includes: a second oil pipe, a second check valve, and a third check valve, wherein one end of the second oil pipe is fixedly connected to the inside of the piston cylinder; the second check valve is fixedly installed inside the first oil pipe; and the third check valve is fixedly installed inside the second oil pipe.

[0012] Furthermore, the monitoring component includes a second drive rod and a transmission plate, wherein the second drive rod is slidably connected inside the monitoring frame; and the transmission plate is fixedly installed on the top of the second drive rod.

[0013] Furthermore, the monitoring component also includes: a roller, a return spring, and a monitoring sensor. The roller is rotatably connected inside the transmission plate; the return spring is fixedly installed at the middle position between the transmission plate and the monitoring frame; and the monitoring sensor is fixedly installed inside the monitoring frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Firstly, this invention features a maintenance component. The rotation of the drive screw drives the drive column and trigger head to rotate. The trigger head periodically presses against the drive rod, causing the piston plate to reciprocate within the piston cylinder. This forces lubricating oil through the oil pipe to critical components such as bearings and gears, effectively reducing component wear. Simultaneously, the trigger head is threaded into the drive column, allowing adjustment of its distance from the drive rod to precisely control the amount of lubricating oil extruded, preventing over- or under-lubrication and improving equipment operational stability.

[0016] Secondly, this utility model has a monitoring component. It uses a reset spring to make the transmission plate tightly adhere to the outer wall of the screw through rollers. When the screw is radially offset due to bearing wear, or when the shaft position is abnormal due to the failure of the drive gear, the transmission plate drives the drive rod to trigger the monitoring sensor and transmit the offset signal to the control system for early warning. This changes the defect of the prior art that cannot detect equipment abnormalities in time, making it easier for operators to perform early maintenance and prevent the fault from escalating.

[0017] This invention has the advantages of easy maintenance, convenient use, and offset monitoring. While improving the convenience of equipment maintenance, it realizes dynamic monitoring of the twin-screw operation status, effectively extends the equipment life and ensures the stability of masterbatch production. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the barrel structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the oil bottle structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the drive column structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the monitoring frame structure of this utility model.

[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0024] 1. Twin-screw extruder; 2. Drive mechanism; 3. Barrel; 4. Feed hopper; 5. Drive screw; 501. Drive column; 502. Trigger head; 6. Oil bottle; 601. Oil cap; 602. Observation window; 603. First check valve; 604. First oil pipe; 7. Piston cylinder; 701. First drive rod; 702. Elastic element; 703. Piston plate; 704. Second oil pipe; 705. Second check valve; 706. Third check valve; 8. Monitoring frame; 801. Transmission plate; 802. Second drive rod; 803. Roller; 804. Return spring; 805. Monitoring sensor. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] Example 1:

[0027] As attached Figure 1 To be continued Figure 5 As shown:

[0028] This utility model provides a molding device for adjustable masterbatch particle density, including a twin-screw extruder 1, a drive mechanism 2, a barrel 3, a feed hopper 4, a drive screw 5, an oil bottle 6, a piston cylinder 7, a monitoring frame 8, and a maintenance component. The drive mechanism 2 is installed on the upper part of the twin-screw extruder 1; the barrel 3 is installed on the upper part of the twin-screw extruder 1; the feed hopper 4 is fixedly installed on the upper part of the barrel 3; two sets of drive screws 5 are provided, and the two sets of drive screws 5 are installed inside the barrel 3; the oil bottle 6 is fixedly installed on the upper part of the twin-screw extruder 1; the piston cylinder 7 is fixedly installed inside the twin-screw extruder 1; two sets of monitoring frames 8 are provided, and the two sets of monitoring frames 8 are fixedly installed at one end of the barrel 3; the maintenance component is located inside the twin-screw extruder 1; and the monitoring component is located at one end of the barrel 3.

[0029] The maintenance components include a drive column 501 and a trigger head 502. The drive column 501 is fixedly installed on the outside of a set of drive screws 5; the trigger head 502 is threadedly connected inside the drive column 501.

[0030] The maintenance components also include: an oil cap 601, an observation window 602, a first one-way valve 603, and a first oil pipe 604. The oil cap 601 is threaded to the top of the oil bottle 6; the observation window 602 is fixedly installed on the front side of the oil bottle 6; the first one-way valve 603 is fixedly installed on the bottom of the oil bottle 6; one end of the first oil pipe 604 is fixedly installed on the bottom of the oil bottle 6, and the other end of the first oil pipe 604 is fixedly installed on one side of the piston cylinder 7.

[0031] The maintenance component also includes: a first drive rod 701, an elastic element 702, and a piston plate 703. The first drive rod 701 is slidably connected inside the piston cylinder 7; the elastic element 702 is fixedly installed on one side of the piston cylinder 7 and on the outside of the first drive rod 701; the piston plate 703 is slidably connected inside the piston cylinder 7 and is fixedly installed at the end of the first drive rod 701.

[0032] The maintenance components also include: a second oil pipe 704, a second check valve 705, and a third check valve 706. One end of the second oil pipe 704 is fixedly connected to the inside of the piston cylinder 7; the second check valve 705 is fixedly installed inside the first oil pipe 604; and the third check valve 706 is fixedly installed inside the second oil pipe 704.

[0033] The specific usage and function of this embodiment are as follows:

[0034] When processing masterbatch, the raw material is first fed into the barrel 3 from the feed hopper 4. The drive mechanism 2 starts and drives two sets of drive screws 5 to rotate, conveying, extruding, and heat-melting the raw material. When one set of drive screws 5 rotates, the outer drive column 501 rotates synchronously. When the trigger head 502 on the drive column 501 approaches the first drive rod 701 as it rotates, the trigger head 502 will squeeze the first drive rod 701. The operator can precisely control the distance between the trigger head 502 and the first drive rod 701 by adjusting the thread depth of the trigger head 502 in the drive column 501, thereby adjusting the extrusion stroke.

[0035] The second oil pipe 704 is connected at its end to components that require continuous lubrication, such as bearings, connecting shafts, and gears.

[0036] When the first drive rod 701 is compressed, it drives the piston plate 703 to slide within the piston cylinder 7 and compress the elastic element 702. At this time, the second one-way valve 705 and the third one-way valve 706 respectively form one-way flow restriction on the first oil pipe 604 and the second oil pipe 704: when the piston plate 703 moves to the left, it squeezes the lubricating oil in the piston cylinder 7 through the second oil pipe 704 to the bearings, connecting shafts, gears and other parts that need lubrication; when the trigger head 502 rotates away from the first drive rod 701 with the drive column 501, the elastic element 702 resets and pulls the first drive rod 701, and when the piston plate 703 moves to the right, it draws lubricating oil from the oil bottle 6 through the first oil pipe 604. At this time, the first one-way valve 603 ensures one-way ventilation of the oil bottle 6. In addition, the oil level in the oil bottle 6 can be monitored in real time through the observation window 602. When lubricating oil needs to be added, the oil cap 601 can be unscrewed to add oil.

[0037] Example 2:

[0038] Based on Example 1, such as Figures 1 to 5 As shown, it also includes a monitoring component, which is located at one end of the barrel 3.

[0039] The monitoring components include a second drive rod 802 and a transmission plate 801. The second drive rod 802 is slidably connected inside the monitoring frame 8. The transmission plate 801 is fixedly installed on the top of the second drive rod 802.

[0040] The monitoring components also include: a roller 803, a return spring 804, and a monitoring sensor 805. The roller 803 is rotatably connected inside the transmission plate 801; the return spring 804 is fixedly installed in the middle position between the transmission plate 801 and the monitoring frame 8; and the monitoring sensor 805 is fixedly installed inside the monitoring frame 8.

[0041] The specific usage and function of this embodiment are as follows:

[0042] When the drive screw 5 is operating normally, the elastic force of the return spring 804 causes the transmission plate 801 to press tightly against the outer wall of the drive screw 5 via the rollers 803. The rolling design of the rollers 803 reduces frictional loss between the transmission plate 801 and the screw surface. If the drive screw 5 deviates or vibrates abnormally due to faults such as gear breakage, bearing wear, or shaft deformation, the deviated screw will press against the transmission plate 801, causing it to drive the second drive rod 802 to slide into the monitoring frame 8. At this time, the second drive rod 802 triggers the monitoring sensor 805, which can monitor the screw's deviation and vibration amplitude in real time. When the deviation exceeds a preset threshold, the monitoring sensor 805 will transmit a signal to the control system, triggering an early warning prompt, which facilitates timely shutdown and maintenance by the operator.

[0043] The following points should be noted in this article:

[0044] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0045] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0046] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A molding device for adjusting the density of color master granules, characterized by: The molding device for adjustable masterbatch particle density includes a twin-screw extruder (1), a drive mechanism (2), a barrel (3), a feed hopper (4), a drive screw (5), an oil bottle (6), a piston cylinder (7), a monitoring frame (8), a maintenance component, and a monitoring component. The drive mechanism (2) is installed on the upper part of the twin-screw extruder (1); the barrel (3) is installed on the upper part of the twin-screw extruder (1); the feed hopper (4) is fixedly installed on the upper part of the barrel (3); two sets of drive screws (5) are provided, and the two sets of drive screws (5) are installed inside the barrel (3); the oil bottle (6) is fixedly installed on the upper part of the twin-screw extruder (1); the piston cylinder (7) is fixedly installed inside the twin-screw extruder (1); two sets of monitoring frames (8) are provided, and the two sets of monitoring frames (8) are fixedly installed at one end of the barrel (3); the maintenance component is located inside the twin-screw extruder (1); and the monitoring component is located at one end of the barrel (3).

2. The molding device for adjusting the density of color master granules according to claim 1, wherein: The maintenance component includes a drive column (501) and a trigger head (502). The drive column (501) is fixedly installed on the outside of a set of drive screws (5). The trigger head (502) is threadedly connected inside the drive column (501).

3. The forming device for adjusting the density of color concentrate pellets according to claim 2, wherein: The maintenance components also include: an oil cap (601), an observation window (602), a first one-way valve (603), and a first oil pipe (604). The oil cap (601) is threaded to the top of the oil bottle (6). The observation window (602) is fixedly installed on the front side of the oil bottle (6). The first one-way valve (603) is fixedly installed at the bottom of the oil bottle (6). One end of the first oil pipe (604) is fixedly installed at the bottom of the oil bottle (6), and the other end of the first oil pipe (604) is fixedly installed on one side of the piston cylinder (7).

4. The forming device for adjusting the density of color concentrate pellets according to claim 2, wherein: The maintenance assembly further includes: a first drive rod (701), an elastic element (702), and a piston plate (703). The first drive rod (701) is slidably connected inside the piston cylinder (7). The elastic element (702) is fixedly installed on one side of the piston cylinder (7) and on the outside of the first drive rod (701). The piston plate (703) is slidably connected inside the piston cylinder (7) and is fixedly installed at the end of the first drive rod (701).

5. The forming device for adjusting the density of color concentrate pellets according to claim 2, wherein: The maintenance assembly also includes: a second oil pipe (704), a second check valve (705) and a third check valve (706), one end of the second oil pipe (704) being fixedly connected to the inside of the piston cylinder (7); the second check valve (705) being fixedly installed inside the first oil pipe (604); and the third check valve (706) being fixedly installed inside the second oil pipe (704).

6. The molding device for adjusting the density of color master granules according to claim 1, wherein: The monitoring component includes a second drive rod (802) and a transmission plate (801). The second drive rod (802) is slidably connected inside the monitoring frame (8). The transmission plate (801) is fixedly installed on the top of the second drive rod (802).

7. The forming device for adjusting the density of color concentrate pellets according to claim 6, wherein: The monitoring assembly further comprises a roller (803), a reset spring (804) and a monitoring sensor (805), the roller (803) is rotationally connected inside the transmission plate (801); the reset spring (804) is fixedly installed at an intermediate position between the transmission plate (801) and the monitoring frame (8); and the monitoring sensor (805) is fixedly installed inside the monitoring frame (8).

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