Flue gas treatment equipment for injection molding granulation line in plastic industry
By combining the design of the dust hood, support housing, and locking components, the problem of incomplete absorption of flue gas and maintenance difficulties caused by improper installation of the dust hood is solved, thus achieving stability and convenience of the flue gas treatment equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-03-31
AI Technical Summary
In existing plastic extrusion processes, improper installation of the dust hood can lead to incomplete absorption of fumes and affect maintenance and cleaning at the discharge end.
It adopts a combination design of dust hood, support shell, slider and locking component. The slider is slidably connected to the support shell, and the locking component locks the position of the dust hood, so as to achieve height adjustment and stable fixation.
The height of the dust hood is adjustable and it is stably fixed, ensuring effective absorption of flue gas and simplifying the maintenance and cleaning process at the discharge end.
Smart Images

Figure CN224058322U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of flue gas treatment equipment, especially to the plastic industry injection molding granulation line flue gas treatment equipment. BACKGROUND
[0002] Injection molding granulation line is a production line for producing plastic particles, mainly used for processing plastic raw materials into granular, its manufacturing steps include: raw material preparation, heating melting, extrusion, cooling forming and cutting granulation, extrusion is to push the molten plastic through the screw or plunger, through the specific mold or mouth mold, extrusion or injection molding into the required shape.
[0003] When the plastic is extruded by the screw extruder, a certain amount of flue gas will be generated due to temperature difference, in order to reduce the pollution to the environment, the flue gas is usually treated by the cooperation of the smoke dust purifier, the dust hood and the connecting pipe.
[0004] When the dust hood is installed, the dust hood is usually fixed and installed on the top of the plastic extrusion by the fixed support, but the position of the dust hood installed by the fixed support is far away from the discharge end, so that the flue gas cannot be absorbed, and the position of the dust hood installed by the fixed support is close to the discharge end, which will affect the subsequent maintenance and cleaning of the discharge end, thus having certain defects. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing plastic industry injection molding granulation line flue gas treatment equipment to solve the problems in the above background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: plastic industry injection molding granulation line flue gas treatment equipment, comprising:
[0007] Dust hood;
[0008] Corrugated pipe, the corrugated pipe is installed on the top of the dust hood, and the corrugated pipe is used for connecting with the external smoke dust purifier;
[0009] Supporting shell, the supporting shell is arranged on the side of the dust hood;
[0010] Sliding block, the sliding block is fixedly connected to the side of the dust hood, and the outer wall of the sliding block is slidably connected with the supporting shell;
[0011] Locking assembly, the locking assembly is arranged between the dust hood and the supporting shell.
[0012] Preferably, the locking assembly comprises:
[0013] Fixed shell, the fixed shell is fixedly connected to the side of the dust hood;
[0014] A locking rod, the outer wall of which is slidably inserted into the fixed housing;
[0015] A locking hole is provided on the side of the supporting housing facing the fixed housing, and the outer wall of the locking rod is slidably engaged with the inner cavity of the locking hole.
[0016] Preferably, the locking component further includes:
[0017] A connecting block is slidably disposed inside the fixed housing, and one end of the locking rod is fixedly connected to the connecting block;
[0018] The handle has one end fixedly connected to the connecting block, and a sliding hole matching the handle is provided on one side of the fixed housing.
[0019] Preferably, the locking component further includes:
[0020] A fixing rod is fixedly connected to the inside of the fixing housing, and the outer wall of the fixing rod is slidably inserted into the connecting block;
[0021] A limiting spring is slidably sleeved on the outside of the fixed rod, and the end of the limiting spring is pressed and fitted against the connecting block.
[0022] Preferred options also include:
[0023] A base plate, which is fixedly connected to the bottom of the support housing, is used to fix the support housing in place.
[0024] The support block is fixedly connected to the side of the support housing, and the top of the support block is in contact with the dust collection hood.
[0025] Preferred options also include:
[0026] A guide rod, the bottom of which is fixedly connected to the base plate, and the outer wall of which is slidably interlocked with the slider;
[0027] A support spring is slidably sleeved on the outside of the guide rod, and the support spring is located at the bottom of the slider.
[0028] The technical effects and advantages of this utility model are as follows:
[0029] This utility model utilizes the combined use of a dust hood, a supporting shell, a slider, and a locking component. The dust hood is slidably connected to the supporting shell via the slider, allowing the height of the dust hood to be adjusted according to usage requirements. Furthermore, the locking component can lock the dust hood, ensuring its stability during use. Attached Figure Description
[0030] Fig. 1This is a schematic diagram of the overall structure of this utility model.
[0031] Fig. 2 This is a schematic diagram of the internal structure of the front of the support shell part of this utility model.
[0032] Fig. 3 This is a top-view schematic diagram of the internal structure of the fixed shell of this utility model.
[0033] In the diagram: 1. Dust hood; 2. Corrugated pipe; 3. Support housing; 4. Slider; 5. Bearing block; 6. Locking assembly; 61. Fixed housing; 62. Locking rod; 63. Connecting block; 64. Handle; 65. Sliding hole; 66. Fixed rod; 67. Limiting spring; 7. Base plate; 8. Guide rod; 9. Supporting spring. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] This utility model provides, for example Figs. 1-3 The image shows a flue gas treatment system for injection molding and pelletizing lines in the plastics industry.
[0036] Example 1
[0037] The system includes a dust hood 1, a corrugated pipe 2, support housings 3, sliders 4, and a locking assembly 6. The corrugated pipe 2 is installed on the top of the dust hood 1 and is used to connect to an external fume purifier. The corrugated pipe 2 can be bent and extended to a certain extent, so that the dust hood 1 can still be connected to the external fume purifier when it moves up and down. The fume purifier is existing technology and will not be described in detail here. The four support housings 3 are set on the sides of the dust hood 1, and the sliders 4 are fixedly connected to the sides of the dust hood 1. The outer wall of the sliders 4 slides and engages with the support housings 3. Under the action of the sliders 4, the stability of the sliding connection between the dust hood 1 and the four support housings 3 can be ensured. The locking assembly 6 is set between the dust hood 1 and the support housings 3. The locking assembly 6 can ensure the stability of the dust hood 1 after its position is adjusted.
[0038] In particular, the locking assembly 6 includes a fixed housing 61, a locking rod 62, and a locking hole. The fixed housing 61 is fixedly connected to the side of the dust hood 1. The outer wall of the locking rod 62 is slidably inserted into the fixed housing 61. The locking hole is opened on the side of the supporting housing 3 facing the fixed housing 61, and there are at least two locking holes on one side of the supporting housing 3, corresponding to the dust hood 1 in the dust suction working state and the dust hood 1 in the rising and separating state. The outer wall of the locking rod 62 is slidably engaged with the inner cavity of the locking hole. A positioning groove is opened on one side of the slider 4. When the locking rod 62 is slidably engaged with the positioning groove on one side of the slider 4, the stability of the dust hood 1 when locked can be ensured again.
[0039] Furthermore, the locking assembly 6 also includes a connecting block 63 and a handle 64. The connecting block 63 is slidably disposed inside the fixed housing 61. One end of the locking rod 62 is fixedly connected to the connecting block 63, and one end of the handle 64 is fixedly connected to the connecting block 63. A sliding hole 65 matching the handle 64 is provided on one side of the fixed housing 61. The two handles 64 slide relative to each other in the two sliding holes 65, so that the handle 64 can drive the locking rod 62 to move toward the inside of the fixed housing 61 through the connecting block 63, thereby unlocking the vacuum cleaner cover 1. The handle 64 can also be used to drive the fixed housing 61 and the vacuum cleaner cover 1 to move up and down.
[0040] Furthermore, the locking assembly 6 also includes a fixing rod 66 and a limiting spring 67. The fixing rod 66 is fixedly connected to the inside of the fixing housing 61, and the outer wall of the fixing rod 66 is slidably inserted into the connecting block 63. The limiting spring 67 is slidably sleeved on the outside of the fixing rod 66, and the end of the limiting spring 67 is pressed and fitted against the connecting block 63. The limiting spring 67 can give the connecting block 63 an elastic compressive force, thereby ensuring the stability of the locking rod 62 in engagement with the supporting housing 3 and the slider 4.
[0041] Example 2
[0042] Based on Embodiment 1, it also includes a base plate 7, a bearing block 5, a guide rod 8, and a support spring 9. The base plate 7 is fixedly connected to the bottom of the support housing 3. The base plate 7 is used to fix the support housing 3, that is, to fix the support housing 3 on the injection molding line, so that the dust hood 1 is installed on the top of the discharge end of the injection molding line. The bearing block 5 is fixedly connected to the side of the support housing 3. The top of the bearing block 5 is in contact with the dust hood 1. The bearing block 5 can limit the lowest position of the dust hood 1, that is, the dust suction working position of the dust hood 1. The bottom of the guide rod 8 is fixedly connected to the base plate 7. The outer wall of the guide rod 8 is slidably inserted and sleeved with the slider 4. The guide rod 8 can ensure the stability of the sliding connection between the slider 4 and the support housing 3. The support spring 9 is slidably sleeved on the outside of the guide rod 8. The support spring 9 is located at the bottom of the slider 4. The support spring 9 can elastically support the dust hood 1 through the slider 4, thereby balancing the weight of the dust hood 1, thus facilitating the lifting and moving of the dust hood 1 up and down.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A plastic industry injection molding granulation line flue gas treatment apparatus, characterized by, Include: Dust cover (1); Bellows (2), the bellows (2) are installed on the top of the dust cover (1), the bellows (2) are used for connecting with the external smoke dust purifier; Support shell (3), the support shell (3) is arranged on the side of the dust cover (1); Slide block (4), the slide block (4) is fixedly connected to the side of the dust cover (1), and the outer wall of the slide block (4) is slidably connected with the support shell (3); Locking assembly (6), the locking assembly (6) is arranged between the dust cover (1) and the support shell (3).
2. The plastic industry injection molding granulation line flue gas treatment device according to claim 1, characterized in that, The locking assembly (6) comprises: Fixed shell (61), the fixed shell (61) is fixedly connected to the side of the dust cover (1); Locking rod (62), the outer wall of the locking rod (62) is slidably inserted into the fixed shell (61); Locking hole, the locking hole is formed in the side of the support shell (3) towards the fixed shell (61), and the outer wall of the locking rod (62) is slidably connected with the inner cavity of the locking hole.
3. The plastic industry injection molding granulation line flue gas treatment apparatus according to claim 2, characterized by, The locking assembly (6) further comprises: Connecting block (63), the connecting block (63) is slidably arranged in the inner portion of the fixed shell (61), and one end of the locking rod (62) is fixedly connected with the connecting block (63); Handle (64), one end of the handle (64) is fixedly connected with the connecting block (63), and one side of the fixed shell (61) is provided with a sliding hole (65) matched with the handle (64).
4. The plastic industry injection molding granulation line flue gas treatment device according to claim 3, characterized in that, The locking assembly (6) further comprises: Fixed rod (66), the fixed rod (66) is fixedly connected to the inner portion of the fixed shell (61), and the outer wall of the fixed rod (66) is slidably inserted into the connecting block (63); Limiting spring (67), the limiting spring (67) is slidably sleeved on the outer portion of the fixed rod (66), and the end portion of the limiting spring (67) is extruded and matched with the connecting block (63).
5. The plastic industry injection molding granulation line flue gas treatment device according to claim 1, characterized in that, Further comprising: Bottom plate (7), the bottom plate (7) is fixedly connected to the bottom of the support shell (3), and the bottom plate (7) is used for fixedly mounting the support shell (3); Bearing block (5), the bearing block (5) is fixedly connected to the side of the support shell (3), and the top of the bearing block (5) is matched with the dust cover (1).
6. The plastic industry injection molding granulation line flue gas treatment device according to claim 5, characterized in that, Further comprising: Guide rod (8), the bottom of the guide rod (8) is fixedly connected with the bottom plate (7), and the outer wall of the guide rod (8) is slidably inserted into the slide block (4); Support spring (9), the support spring (9) is slidably sleeved on the outer portion of the guide rod (8), and the support spring (9) is located at the bottom of the slide block (4).