A cap opening mechanism and its extruder housing

Abstract

This utility model relates to an extruder housing and an extruder housing of an extruder housing. The extruder housing includes two fixed seats and two symmetrically arranged sets of linkage assemblies connected by a support assembly. Each set of linkage assemblies includes a main arm, a pull rod, a linkage arm, a door panel arm, and a lever arm. A telescopic drive unit can switch the linkage assemblies between closed and open states. Through the linkage assembly, the extruder housing, by incorporating the extruder housing housing with an extruder housing opening mechanism, utilizes the telescopic drive unit to drive the main cover plate and the auxiliary cover plate to cover or open the feed inlet on the hopper. Compared to manual or simple opening and closing structures, this achieves automated opening and closing operations, greatly improving the efficiency of the housing opening and closing. Simultaneously, the linkage assembly of the opening mechanism enhances the reliability and stability of the opening and closing process of the main cover plate and the auxiliary cover plate.

Description

Technical Field

[0001] This utility model relates to the field of cap opening mechanisms, specifically to a cap opening mechanism and its extruder housing. Background Technology

[0002] As a key component of automated equipment, lid-opening mechanisms have a wide range of applications, including but not limited to packaging, containers, daily chemical products, and industrial storage and transportation. Especially in scenarios requiring high-efficiency or hazardous operations, their automated opening and closing functions can significantly improve production efficiency and reduce the risk of human intervention. With the development of intelligent manufacturing and precision machining technologies, the technical requirements for lid-opening mechanisms have evolved from single-function to high stability, low noise, and high reliability, in order to meet the stringent requirements of modern production lines for equipment precision and durability.

[0003] Currently, automated lid opening mechanisms typically employ motor drive, gear transmission, or pneumatic / hydraulic control to automatically open and close the lid through a preset program. Their core structure includes a power source (such as a servo motor), transmission components (gear, linkage, or cam mechanism), and a guiding mechanism (ensuring precise motion trajectory). In operation, the mechanism uses sensors to identify the lid's position, driving the transmission components to move the lid horizontally or vertically, ultimately separating and resetting the lid, thus achieving automatic opening and closing.

[0004] However, existing lid-opening mechanisms still have certain drawbacks: the existing lid transmission components have a relatively simple structure, which makes them prone to shaking during use, affecting the stability and reliability of the lid opening. At the same time, the shaking can cause the lid's movement trajectory to deviate, increasing the risk of jamming. As a result, when the lid jams after opening, it becomes difficult to close, affecting the automated opening and closing function of the lid-opening mechanism. In addition, the existing lid-opening mechanism has a relatively simple opening and closing connection structure, which can easily generate noise pollution due to structural shaking and collision under long-term high-frequency opening and closing use, thus affecting the user experience and the reliability of the lid opening.

[0005] The opening and closing of the cover of the existing extruder housing is generally done manually or with a simple opening and closing structure, which results in low opening and closing efficiency of the cover and poor reliability and stability of the opening and closing of the housing cover, thus affecting the use of the cover. Utility Model Content

[0006] The purpose of this utility model is to solve the above-mentioned defects by providing a cap opening mechanism and its extruder housing, so as to solve the technical problems in the background art of how to improve the stability and reliability of the opening or closing of the cap opening mechanism and reduce cap opening shaking and collision noise.

[0007] The objective of this utility model is achieved through the following means:

[0008] A cover-opening mechanism includes two fixed seats and two symmetrically arranged sets of linkage assemblies. The two sets of linkage assemblies are connected by a support assembly. Each set of linkage assemblies includes a main arm, a pull rod, a linkage arm, a door panel arm, and a lever arm. The main arm is rotatably connected to the fixed seats. One end of the main arm extends to form a linkage part. One end of the lever arm is hinged to the linkage part, and the other end of the lever arm is hinged to the door panel arm. The linkage arm is hinged to the linkage part. One end of the pull rod is hinged to one end of the linkage arm, and the other end of the pull rod is hinged to the fixed seat. The other end of the linkage arm is hinged to the door panel arm. The support assembly is used to connect the linkage arms of the two sets of linkage assemblies. The other end of the main arm forms a drive part. The drive part is connected to a telescopic drive member through a connector. The telescopic drive member extends horizontally from the linkage part to the drive part. A main cover plate and a secondary cover plate are respectively connected between the two main arms and the two door panel arms. The telescopic drive member can drive the linkage assembly to switch between a closed state and an open state.

[0009] In the closed state, the telescopic end of the telescopic drive extends, and the drive unit causes the connecting rod assembly to unfold the main cover plate and the secondary cover plate, and then the main cover plate and the secondary cover plate can be closed to cover.

[0010] In the open state: The telescopic end of the telescopic drive retracts, and the drive unit causes the linkage assembly to fold the main cover plate and the secondary cover plate, making the main cover plate and the secondary cover plate flip up and open.

[0011] Furthermore, as described above, the main arm has a mounting portion, the end of the mounting portion near the drive portion is hinged to the fixed seat via a first pin, the end of the mounting portion near the linkage portion is hinged to the linkage arm via a second pin, a first included angle is formed between the mounting portion and the drive portion, and a second included angle is formed between the mounting portion and the linkage portion.

[0012] By setting an mounting part on the main arm and using the first and second pins to hinge to the fixed seat and the linkage arm respectively, and forming the first and second included angles on the main arm, the main arm is more stable when under force. Through the structure of multiple linkages, the shaking during the opening and closing process is reduced, ensuring the stability and reliability of the opening and closing, avoiding the deviation of the cover movement trajectory due to shaking, reducing the risk of jamming, and ensuring the automatic opening and closing of the cover opening mechanism.

[0013] Furthermore, as described above, the linkage arm has a connecting portion, and the second pin passes through the connecting portion to hinge with the main arm, and the linkage arm is arranged in an "L" shape.

[0014] The linkage arm is equipped with a connecting part and is hinged to the main arm through a second pin. It is arranged in an "L" shape to enhance the stability of the overall structure. At the same time, the linkage arm can reduce the shaking during the opening process, further improving the stability and reliability of opening the lid, reducing noise pollution caused by structural shaking and collision, and improving the user experience.

[0015] Furthermore, as described above, the support assembly includes a first support rod, a second support rod, a third support rod, and a reinforcing plate. The end of the first support rod is hinged to the end of the linkage arm and the pull rod. The end of the second support rod is hinged to the connecting part and the mounting part. The end of the third support rod is hinged through the end of the door panel arm and the linkage arm. The reinforcing plate has mounting holes for mating the first support rod, the second support rod, and the third support rod.

[0016] The support assembly consists of a first support rod, a second support rod, a third support rod, and a reinforcing plate, all hinged together by multiple pins. The reinforcing plate has mating mounting holes. This structure provides more stable support for the entire opening mechanism, enhances the connection strength between components, effectively reduces shaking during the opening process, improves the stability and reliability of the opening, prevents the main cover plate and the secondary cover plate from deviating from their movement trajectories and getting stuck, and reduces noise caused by structural shaking and collisions, thereby improving the reliability and user experience of the opening mechanism.

[0017] Furthermore, as described above, the support assembly is disposed between the main cover plate and the secondary cover plate, and a joint plate is disposed between the second support rod and the third support rod, so that the joint plate is located between the main cover plate and the secondary cover plate to form a connection.

[0018] The support assembly is placed between the main cover plate and the secondary cover plate, and a joint plate is set between the second support rod and the third support rod. Since the main cover plate and the secondary cover plate are set separately, there is a gap between the main cover plate and the cover plate. Therefore, the joint plate is set so that when the main cover plate and the secondary cover plate are unfolded, it cooperates with the main cover plate and the secondary cover plate to ensure the covering effect and improve the user experience.

[0019] Furthermore, as described above, the telescopic drive component is composed of a telescopic cylinder, and the telescopic rod of the telescopic cylinder is connected to a connecting component, which is a spherical bearing, so that the spherical bearing is hinged to the drive unit.

[0020] The telescopic drive uses a telescopic cylinder, which is hinged to the drive unit via a spherical bearing. This allows the telescopic cylinder to transmit power more flexibly during the drive process, reducing shaking caused by uneven power transmission and improving the stability and reliability of opening the cover.

[0021] Furthermore, as described above, there are two telescopic drive components, and each telescopic drive component is connected to the main arm of a set of linkage assemblies.

[0022] The system is equipped with two telescopic drive components, each connected to the main arm of a set of linkage assemblies. This symmetrical drive method allows the two sets of linkage assemblies to be subjected to more even force, further reducing shaking during the opening process, improving the stability and reliability of the opening process, and ensuring the coordination and stability of the automatic opening and closing of the opening mechanism.

[0023] An extruder housing includes a feed bin and a cover opening mechanism. The feed bin is equipped with a hopper, and the hopper has a through feed port. The cover opening mechanism is located on the hopper, and the main cover plate and the secondary cover plate can be covered or opened by the drive of the telescopic drive component.

[0024] The extruder housing is equipped with an opening mechanism that uses a telescopic drive to cover or open the feed port on the hopper by driving the main cover plate and the auxiliary cover plate. Compared with manual or simple opening and closing structures, this achieves automated opening and closing operation, which greatly improves the opening and closing efficiency of the housing cover. At the same time, the linkage assembly of the opening mechanism enhances the reliability and stability of the opening and closing process of the main cover plate and the auxiliary cover plate, ensuring the normal use of the housing cover.

[0025] Furthermore, as described above, the side of the hopper is provided with a mounting base, and a fixed base is paired and connected to the mounting base. The side of the hopper is provided with a connecting base for installing a telescopic drive component. The telescopic drive component can drive the connecting rod assembly to close or open the main cover plate and the secondary cover plate, so that the main cover plate and the secondary cover plate can be unfolded to close and cover the feeding port, or can be flipped up and folded to open the feeding port and expose the feeding port.

[0026] Mounting seats are provided on the side of the hopper for pairing and connecting to the fixed seat, and connecting seats are provided for installing the telescopic drive component, making the installation of the cover opening mechanism more stable and reasonable. The telescopic drive component drives the connecting rod assembly to move the main cover plate and the secondary cover plate to perform precise closing or opening actions, ensuring that the main cover plate and the secondary cover plate can accurately unfold to close and cover the feed port, and fold up to open the feed port, further improving the reliability and stability of the cover opening and closing, effectively solving the problem of poor reliability and stability of cover opening and closing in the prior art, and ensuring the normal use of the extruder housing.

[0027] The beneficial effects of this utility model are:

[0028] 1. The linkage of the main arm with the lever arm, door panel arm, and linkage arm forms a transmission link. Combined with the support and constraint of the support components, this effectively suppresses unilateral swaying, ensuring precise alignment of the main cover plate and secondary cover plate's movement trajectories. This reduces the risk of trajectory deviation caused by swaying. Through the rotatable connection between the main arm and the fixed base, in the closed state, the telescopic drive extends its telescopic end, causing the main arm to drive the lever arm, door panel arm, and linkage arm in a coordinated manner. A pull rod allows the linkage arm to drive the door panel arm to extend horizontally alongside the main arm. At this time, the main cover plate and... When the secondary cover is in the unfolded state, the telescopic drive retracts, causing the main arm to drive the lever arm, door panel arm, and linkage arm to move in tandem. This also causes the main cover and secondary cover to flip up. At the same time, the linkage arm drives the door panel arm to fold the secondary cover relative to the main cover via the pull rod. At this time, the main cover and secondary cover are in the folded state. Through the hinged collaborative design of the linkage assembly, the folding action of the main cover and secondary cover is ensured to be coordinated and consistent, further reducing the phenomenon of cover opening jamming and improving the stability and reliability of automated cover opening.

[0029] 2. The extruder housing is equipped with a cover opening mechanism. The main cover plate and the secondary cover plate are driven by the telescopic drive component to cover or open the feed port on the hopper. Compared with manual or simple opening and closing structure, it realizes automated opening and closing operation, which greatly improves the opening and closing efficiency of the cover. At the same time, the linkage assembly of the cover opening mechanism improves the reliability and stability of the opening and closing process of the main cover plate and the secondary cover plate. Attached Figure Description

[0030] Figure 1 This is a top-view schematic diagram of the overall structure of this embodiment;

[0031] Figure 2 This is a schematic diagram of the overall structure from a bottom-view perspective in this embodiment;

[0032] Figure 3 This is a side view of this embodiment;

[0033] Figure 4 This is a partial connection structure diagram of this embodiment;

[0034] Figure 5 for Figure 4 A magnified view of part A in the diagram;

[0035] Figure 6 This is a schematic diagram of the opening state structure of the lid opening mechanism in this embodiment;

[0036] Figure 7 This is a schematic diagram showing the covering and usage state of the cover opening mechanism and the hopper in this embodiment;

[0037] Figure 8 This is a schematic diagram showing the opening mechanism and hopper in the open and in use state in this embodiment;

[0038] The reference numerals in the figure are as follows: 1-pull rod, 2-linkage arm, 3-door panel arm, 4-lever arm, 5-telescopic drive component, 6-main cover plate, 7-secondary cover plate, 8-connecting plate, 9-joint bearing, 10-first pin, 11-second pin, 12-hopper, 13-feeding port, 14-mounting seat, 15-connecting seat, 16-third pin, 17-fourth pin;

[0039] 100-Fixing base, 101-Allowing groove, 102-Fixing part;

[0040] 200-Main arm, 201-Linkage unit, 202-Mounting unit, 203-Drive unit, 204-First included angle, 205-Second included angle;

[0041] 300 - Support assembly, 301 - First support rod, 302 - Second support rod, 303 - Third support rod, 304 - Reinforcing plate. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0043] To make the technical problem to be solved, the technical solution and the beneficial effects of this utility model clearer, the following describes the solution in further detail with reference to the accompanying drawings and embodiments.

[0044] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this scheme and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] In this embodiment, refer to Figures 1-8The specific implementation of this cover-opening mechanism includes two fixed seats 100 and two symmetrically arranged sets of linkage assemblies. The two sets of linkage assemblies are connected by a support assembly 300. Each set of linkage assemblies includes a main arm 200, a pull rod 1, a linkage arm 2, a door panel arm 3, and a lever arm 4. The main arm 200 is rotatably connected to the fixed seats 100. One end of the main arm 200 extends to form a linkage part 201. One end of the lever arm 4 is hinged to the linkage part 201 via a third pin 16, and the other end of the lever arm 4 is hinged to the door panel arm 3 via a fourth pin 17. The linkage arm 2 is connected to the linkage part 201. The linkage is hinged, with one end of the pull rod 1 hinged to one end of the linkage arm 2, and the other end of the pull rod 1 hinged to the fixed seat 100. The other end of the linkage arm 2 is hinged to the door panel arm 3. The support assembly 300 is used to connect the linkage arms 2 of the two sets of linkage assemblies. The other end of the main arm 200 forms a drive part 203. The drive part 203 is connected to the telescopic drive part 5 through a connector. The telescopic drive part 5 extends horizontally from the linkage part 201 to the drive part 203. The two main arms 200 and the two door panel arms 3 are respectively connected to the main cover plate 6 and the secondary cover plate 7. The telescopic drive part 5 can drive the linkage assembly to switch between the closed state and the open state.

[0046] In the closed state, the telescopic drive 5 extends out, and the drive unit 203 causes the connecting rod assembly to drive the main cover plate 6 and the secondary cover plate 7 to unfold, and the main cover plate 6 and the secondary cover plate 7 can be closed to cover.

[0047] In the open state: the telescopic drive 5 retracts, and the drive unit 203 causes the linkage assembly to fold the main cover plate 6 and the secondary cover plate 7, so that the main cover plate 6 and the secondary cover plate 7 can be flipped up and opened.

[0048] Specifically, in this embodiment, the side of the fixed base 100 is formed with a clearance groove 101 for avoiding the main arm 200 and the pull rod 1. The main arm 200 and the pull rod 1 are disposed in the clearance groove 101 and are hinged to the fixed base 100 by a pin. The side of the fixed base 100 is provided with a fixing part 102.

[0049] The main arm 200 has a mounting portion 202. The end of the mounting portion 202 near the drive portion 203 is hinged to the fixed seat 100 via a first pin 10. The end of the mounting portion 202 near the linkage portion 201 is hinged to the linkage arm 2 via a second pin 11. A first included angle 204 is formed between the mounting portion 202 and the drive portion 203, and a second included angle 205 is formed between the mounting portion 202 and the linkage portion 201.

[0050] By setting an mounting part 202 on the main arm 200 and using the first pin 10 and the second pin 11 to be hinged to the fixed base 100 and the linkage arm 2 respectively, and forming a first included angle 204 and a second included angle 205 on the main arm 200, the main arm 200 is more stable when under force. Through the structure of multiple connecting rods, the shaking during the opening and use of the cover is reduced, ensuring the stability and reliability of the opening, avoiding the deviation of the cover movement trajectory due to shaking, reducing the risk of jamming, and ensuring the automatic opening and closing of the cover opening mechanism.

[0051] Specifically, in this embodiment, the first included angle 204 is an obtuse angle and the second included angle 205 is a right angle, so that the telescopic drive 5 can drive the main arm 200 to control the opening and closing of the main cover plate 6 and the secondary cover plate 7.

[0052] The linkage arm 2 has a connecting part, and the second pin 11 passes through the connecting part and is hinged to the main arm 200. The linkage arm 2 is arranged in an "L" shape.

[0053] The linkage arm 2 is provided with a connecting part and is hinged to the main arm 200 through the second pin 11. It is arranged in an "L" shape to enhance the stability of the overall structure. At the same time, the linkage arm 2 can reduce the shaking during the opening process, further improve the stability and reliability of opening the cover, reduce noise pollution caused by structural shaking and collision, and improve the user experience.

[0054] The support assembly 300 includes a first support rod 301, a second support rod 302, a third support rod 303, and a reinforcing plate 304. The end of the first support rod 301 is hinged to the end of the linkage arm 2 and the pull rod 1. The end of the second support rod 302 is hinged to the connecting part and the mounting part 202. The end of the third support rod 303 is hinged to the end of the door panel arm 3 and the linkage arm 2. The reinforcing plate 304 has mounting holes for matching the first support rod 301, the second support rod 302, and the third support rod 303.

[0055] The support assembly 300 consists of a first support rod 301, a second support rod 302, a third support rod 303, and a reinforcing plate 304, which are hinged together by multiple pins. The reinforcing plate 304 has mating mounting holes. This structure can provide more stable support for the entire cover opening mechanism, enhance the connection strength between the components, effectively reduce shaking during the cover opening process, improve the stability and reliability of the cover opening, avoid the main cover plate 6 and the secondary cover plate 7 from deviating from their movement trajectory and getting stuck, and at the same time reduce the noise caused by structural shaking and collision, thereby improving the reliability and user experience of the cover opening mechanism.

[0056] Specifically, in this embodiment, the first support rod 301, the second support rod 302, and the third support rod 303 pass through the reinforcing plate 304 and are hinged to the two sets of connecting rod assemblies at their ends. The first support rod 301, the second support rod 302, and the third support rod 303 are arranged in an "L" shape and are connected to the linkage arm 2. The reinforcing plate 304 is composed of a right-angled triangular plate.

[0057] The support assembly 300 is disposed between the main cover plate 6 and the secondary cover plate 7, and a connecting plate 8 is disposed between the second support rod 302 and the third support rod 303, so that the connecting plate 8 is located between the main cover plate 6 and the secondary cover plate 7 to form a connection.

[0058] The support assembly 300 is positioned between the main cover plate 6 and the secondary cover plate 7, and a connecting plate 8 is positioned between the second support rod 302 and the third support rod 303. Due to the separate configuration of the main cover plate 6 and the secondary cover plate 7, there is a gap between the main cover plate 6 and the cover plate. Therefore, the connecting plate 8 is used to ensure the covering effect and improve the user experience when the main cover plate 6 and the secondary cover plate 7 are unfolded.

[0059] In this embodiment, there are two reinforcing plates 304 and three docking plates 8, with the reinforcing plates 304 and docking plates 8 arranged alternately.

[0060] The telescopic drive component 5 is composed of a telescopic cylinder. The telescopic rod of the telescopic cylinder is connected to a connecting component, which is a spherical bearing 9, so that the spherical bearing 9 is hinged to the drive unit 203.

[0061] The telescopic drive component 5 uses a telescopic cylinder and is hinged to the drive unit 203 via a spherical bearing 9, which allows the telescopic cylinder to transmit power more flexibly during the drive process, reducing shaking caused by uneven power transmission and improving the stability and reliability of opening the cover.

[0062] Two telescopic drive components 5 are provided, and each telescopic drive component 5 is connected to the main arm 200 of a set of linkage assemblies.

[0063] Two telescopic drive components 5 are provided, and each telescopic drive component 5 is connected to the main arm 200 of a set of linkage components. This symmetrical drive method can make the two sets of linkage components more evenly stressed, further reduce the shaking during the opening process, improve the stability and reliability of the opening process, and ensure the coordination and stability of the automatic opening and closing of the opening mechanism.

[0064] An extruder housing includes a hopper (not shown) and a cover opening mechanism. The hopper is provided with a hopper 12, and the hopper 12 has a through feeding port 13. The cover opening mechanism is provided on the hopper 12. The main cover plate 6 and the secondary cover plate 7 can cover or open the feeding port 13 by the drive of the telescopic drive member 5.

[0065] The extruder housing is equipped with an opening mechanism. The telescopic drive component 5 drives the main cover plate 6 and the auxiliary cover plate 7 to cover or open the feed port 13 on the hopper 12. Compared with manual or simple opening and closing structures, it realizes automated opening and closing operation, which greatly improves the opening and closing efficiency of the housing. At the same time, the linkage assembly of the opening mechanism improves the reliability and stability of the opening and closing process of the main cover plate 6 and the auxiliary cover plate 7, ensuring the normal use of the housing.

[0066] The hopper 12 is provided with a mounting base 14 on its side, and a fixing base 100 is paired and connected to the mounting base 14. The hopper 12 is provided with a connecting base 15 for mounting the telescopic drive component 5 on its side. The telescopic drive component 5 can drive the connecting rod assembly to close or open the main cover plate 6 and the secondary cover plate 7, so that the main cover plate 6 and the secondary cover plate 7 can be unfolded to close and cover the feeding port 13, or can be flipped up and folded to open the feeding port 13 and expose the feeding port 13.

[0067] A mounting base 14 is provided on the side of the hopper 12 for pairing and connecting the fixed base 100, and a connecting base 15 is provided for installing the telescopic drive component 5, making the installation of the cover opening mechanism more stable and reasonable. The telescopic drive component 5 drives the connecting rod assembly to drive the main cover plate 6 and the secondary cover plate 7 to perform precise closing or opening actions, ensuring that the main cover plate 6 and the secondary cover plate 7 can accurately unfold to close and cover the feed port 13, and flip up and fold to open the feed port 13, further improving the reliability and stability of the cover opening and closing, effectively solving the problem of poor reliability and stability of cover opening and closing in the prior art, and ensuring the normal use of the extruder housing.

[0068] Specifically, in this embodiment, the fixed seat 100 is installed on the mounting seat 14 by bolts, and the connecting seat 15 is fixedly connected to the side of the hopper 12, so that the telescopic drive 5 is installed on the connecting seat 15, and the telescopic end of the telescopic drive 5 extends toward the fixed seat 100.

[0069] Specifically, the ends of the first, second, third, and fourth pins 17 are all fitted with flanged oil-free bushings.

[0070] The specific operating principle in this embodiment is as follows:

[0071] The opening mechanism is installed on the hopper 12, so that the linkage part 201 of the main arm 200 forms a transmission link with the lever arm 4, the door panel arm 3 and the linkage arm 2. The first support rod 301, the second support rod 302, the third support rod 303 and the reinforcing plate 304 provide support and constraint for the two sets of linkage assemblies, effectively suppressing unilateral swaying. Through the rotatable connection between the main arm 200 and the fixed seat 100, in the closed state, the telescopic shaft of the telescopic cylinder extends, so that the main arm 200 drives the lever arm 4, the door panel arm 3 and the linkage arm 2 to move in linkage. Through the pull rod 1, the linkage arm 2 can drive the door panel arm 3 to extend horizontally with the main arm 200. At this time, the main cover plate 6 and the secondary cover plate 7 are in the unfolded state, and through the cooperation of the docking plate 8 with the main cover plate 6 and the secondary cover plate 7, they can cover the feed port 13 of the hopper 12.

[0072] Conversely, when the telescopic cylinder retracts its telescopic shaft, the main arm 200 drives the lever arm 4, the door panel arm 3, and the linkage arm 2 to move in tandem. This causes the main cover plate 6 and the secondary cover plate 7 to flip, moving them away from the hopper 12. Simultaneously, the linkage arm 2, via the pull rod 1, drives the door panel arm 3 to fold the secondary cover plate 7 relative to the main cover plate 6. The secondary cover plate 7 flips and folds under the action of the door panel arm 3, resulting in the main cover plate 6 and the secondary cover plate 7 being in a folded state. Through the hinged collaborative design of the linkage assembly, the folding actions of the main cover plate 6 and the secondary cover plate 7 are coordinated and consistent, further reducing the phenomenon of jamming when opening the cover and improving the stability and reliability of automated cover opening.

[0073] In summary, by setting up an opening mechanism, the extruder housing uses the telescopic drive component 5 to drive the main cover plate 6 and the auxiliary cover plate 7 to cover or open the feed port 13 on the hopper 12. Compared with manual or simple opening and closing structures, it realizes automated opening and closing operation, which greatly improves the opening and closing efficiency of the housing cover. At the same time, the linkage assembly of the opening mechanism improves the reliability and stability of the opening and closing process of the main cover plate 6 and the auxiliary cover plate 7.

[0074] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A lid-opening mechanism, characterized in that: The device includes two fixed seats and two symmetrically arranged sets of linkage assemblies. The two sets of linkage assemblies are connected by a support assembly. Each set of linkage assemblies includes a main arm, a pull rod, a linkage arm, a door panel arm, and a lever arm. The main arm is rotatably connected to the fixed seat. One end of the main arm extends to form a linkage part. One end of the lever arm is hinged to the linkage part, and the other end of the lever arm is hinged to the door panel arm. The linkage arm is hinged to the linkage part. One end of the pull rod is hinged to one end of the linkage arm, and the other end of the pull rod is hinged to the fixed seat. The other end of the linkage arm is hinged to the door panel arm. The support assembly is used to connect the linkage arms of the two sets of linkage assemblies. The other end of the main arm forms a drive part. The drive part is connected to a telescopic drive member through a connector. The telescopic drive member extends horizontally from the linkage part to the drive part. A main cover plate and a secondary cover plate are connected between the two main arms and the two door panel arms, respectively. The telescopic drive member can drive the linkage assembly to switch between a closed state and an open state. In the closed state, the telescopic end of the telescopic drive extends out, and the drive unit causes the linkage assembly to drive the main cover plate and the secondary cover plate to unfold, and the main cover plate and the secondary cover plate can be closed to cover. In the open state: The telescopic end of the telescopic drive retracts, and the drive unit causes the linkage assembly to fold the main cover plate and the secondary cover plate, making the main cover plate and the secondary cover plate flip up and open.

2. The lid-opening mechanism according to claim 1, characterized in that: The main arm has a mounting part, the end of the mounting part near the drive part is hinged to the fixed seat through a first pin, the end of the mounting part near the linkage part is hinged to the linkage arm through a second pin, a first included angle is formed between the mounting part and the drive part, and a second included angle is formed between the mounting part and the linkage part.

3. The lid-opening mechanism according to claim 1, characterized in that: The linkage arm has a connecting part, and the second pin passes through the connecting part to be hinged to the main arm. The linkage arm is arranged in an "L" shape.

4. The lid-opening mechanism according to claim 3, characterized in that: The support assembly includes a first support rod, a second support rod, a third support rod, and a reinforcing plate. The end of the first support rod is hinged to the end of the linkage arm and the pull rod. The end of the second support rod is hinged to the connecting part and the mounting part. The end of the third support rod is hinged through the end of the door panel arm and the linkage arm. The reinforcing plate has mounting holes for matching the first support rod, the second support rod, and the third support rod.

5. The lid-opening mechanism according to claim 4, characterized in that: The support assembly is disposed between the main cover plate and the secondary cover plate, and a joint plate is disposed between the second support rod and the third support rod, so that the joint plate is located between the main cover plate and the secondary cover plate to form a connection.

6. The lid-opening mechanism according to claim 1, characterized in that: The telescopic drive component is composed of a telescopic cylinder. The telescopic rod of the telescopic cylinder is connected to a connecting component, which is a spherical bearing, so that the spherical bearing is hinged to the drive unit.

7. The lid-opening mechanism according to claim 1, characterized in that: There are two telescopic drive components, and each telescopic drive component is connected to the main arm of a set of linkage assemblies.

8. An extruder housing, characterized in that: The device includes a material bin and an opening mechanism according to any one of claims 1-7. The material bin is provided with a hopper, and the hopper has a through feeding port. The opening mechanism is provided on the hopper, and the main cover plate and the secondary cover plate can cover or open the feeding port by being driven by the telescopic drive component.

9. The extruder housing according to claim 8, characterized in that: The hopper is provided with a mounting base on its side, and a fixed base is paired and connected to the mounting base. The hopper is also provided with a connecting base for mounting the telescopic drive component. The telescopic drive component can drive the connecting rod assembly to close or open the main cover plate and the secondary cover plate, so that the main cover plate and the secondary cover plate can be unfolded to close and cover the feeding port, or flipped up to open the feeding port and expose it.

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