Material detection device and molding machine

Abstract

The utility model provides a kind of material detection device and forming machine, wherein, material detection device includes pedestal and detection component, detection component is rotatably connected with pedestal, detection component has multiple detection ends for detecting material height, detection component has the working position of downwardly overturning and the overhaul position of upwardly overturning, when detection component is located overhaul position, detection component overturns upward, and detection end faces upward, when detection component is located working position, detection end faces downward and is directed to material, detection end and the above of material form predetermined size overhaul distance, the distance between at least two detection ends and conveying surface is different, to make the trigger quantity of detection end and the protruding height of material be proportional, to distinguish different height material.The utility model solves the problem of time-consuming and laborious in prior art material detection device disassembly.

Description

Technical Field

[0001] This utility model relates to molding apparatus, specifically to a material detection device and a molding machine. Background Technology

[0002] Current material inspection devices primarily detect the height of tire components during tire molding to ensure the accuracy and consistency of the manufacturing process. However, when material abnormalities such as wrinkles, joints, or folds are encountered, requiring manual intervention for inspection and adjustment, existing inspection devices are often fixed on the production line. The disassembly process is complex, consuming a significant amount of time and increasing the labor intensity of workers, severely impacting production efficiency and the continuity of the workflow. Utility Model Content

[0003] The main purpose of this utility model is to provide a material detection device and a molding machine to solve the problem of time-consuming and labor-intensive disassembly of material detection devices in the prior art.

[0004] To achieve the above objectives, according to one aspect of the present invention, a material detection device is provided, comprising a base and a detection component, wherein the detection component is rotatably connected to the base, the detection component has multiple detection ends for detecting the height of the material, the detection component has a downward-flipping working position and an upward-flipping maintenance position, wherein when the detection component is in the maintenance position, the detection component flips upward and the detection ends face upward, and when the detection component is in the working position, the detection ends face downward and toward the material, the detection ends form a predetermined maintenance distance with the top of the material, and at least two detection ends are at different distances from the conveying surface, so that the number of triggers of the detection ends is proportional to the protrusion height of the material, thereby distinguishing materials of different heights.

[0005] Furthermore, the rotation axis of the detection component relative to the base and the detection end are located on both sides of the detection component.

[0006] Furthermore, the arrangement direction between the detection ends is perpendicular to the material conveying direction.

[0007] Furthermore, the testing assembly includes multiple testing mechanisms, each of which is independently and rotatably connected to the base and has a working position and a maintenance position, and each testing mechanism has at least one testing end.

[0008] Furthermore, the detection mechanism includes a mounting base and a swinging component. The mounting base is connected to the base in a way that allows it to flip up and down. The swinging component is rotatably connected to the mounting base. The swinging component has a roller for rolling on the surface of the material. The roller serves as the detection end. When the surface height of the material is higher than the height of the roller, the material pushes the swinging component to rotate around the mounting base.

[0009] Furthermore, the swinging component forms a first rotation center relative to the mounting base, and the mounting base forms a second rotation center relative to the base. When the detection mechanism is in the working position, the first rotation center is closer to the material than the second rotation center.

[0010] Furthermore, the detection mechanism also includes a sensor connected to the mounting base. When the swinging component rotates around the mounting base, it triggers the sensor, which then sends an indication signal to indicate changes in the material's height.

[0011] Furthermore, at least one detection mechanism includes multiple sensors located at different rotation angles of the oscillating member, with different sensors triggered when the oscillating member is at different rotation angles.

[0012] Furthermore, the material detection device also includes an adjusting component, which is movably connected to the base and abuts against the mounting seat. The adjusting component can adjust the distance between the base and the mounting seat to adjust the initial height of the roller.

[0013] Furthermore, the material detection device also includes a feeding roller device, which is connected to the base. Along the material conveying direction, the feeding roller device is located upstream of the detection component, and the material passes through the feeding roller device and the detection component in sequence.

[0014] Furthermore, the feeding roller device includes: a bracket connected to a base; a sliding frame connected to the bracket in a liftable manner, the bottom end of the sliding frame having a roller for pressing down the material; and a locking member, the side of the bracket having an inclined surface, the locking member being movably mounted on the sliding frame and abutting against the inclined surface, the inclined surface sloping upwards towards the locking member, and the top of the inclined surface having a laterally extending locking surface, when the sliding frame drives the roller to move upwards, the locking member moves along the inclined surface, and when the locking member moves to the top of the inclined surface, the locking member is located at the locking surface and abuts against the upper and lower limits of the locking surface.

[0015] According to another aspect of the present invention, a molding machine is provided, including the above-described material detection device.

[0016] By applying the technical solution of this utility model, the detection component is rotatably connected to the base, allowing the detection component to be rotated upwards and away from the material for maintenance. This enables the detection component to avoid the abnormal position of the material when an abnormality occurs, allowing staff to smoothly intervene for inspection and adjustment without having to disassemble the detection component, thus saving time and improving work efficiency. At the same time, when the detection component is in the working position, it can detect abnormal heights of the material, promptly identify abnormal conditions, and determine different abnormal states of the material based on the number of triggers at the detection end, thereby improving the automation level of material conveying. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the material detection device of this utility model is shown;

[0019] Figure 2 A schematic diagram of a material detection device with two sensors is shown.

[0020] Figure 3 A schematic diagram of a material detection device with a sensor is shown.

[0021] Figure 4 A schematic diagram of the material detection device in the case of material overlap is shown.

[0022] Figure 5 A schematic diagram of a material detection device in a wrinkled state is shown.

[0023] Figure 6 This diagram shows the structure of the material detection device when the detection component is in the maintenance position;

[0024] Figure 7 A schematic diagram of the feeding roller device is shown.

[0025] The above figures include the following reference numerals:

[0026] 10. Base; 20. Detection component; 21. Detection mechanism; 211. Mounting base; 212. Swinging component; 2121. Detection end; 213. Sensor; 214. First rotation center; 215. Second rotation center; 30. Adjusting component; 40. Feeding pressure roller device; 41. Support; 411. Inclined surface; 42. Sliding frame; 43. Pressure roller; 44. Locking component. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] To address the problem of time-consuming and labor-intensive disassembly of existing material detection devices, this utility model provides a material detection device and a molding machine, wherein the molding machine includes the following material detection device.

[0031] like Figures 1 to 7 A material detection device includes a base 10 and a detection component 20, which is rotatably connected to the base 10. The detection component 20 has multiple detection ends 2121 for detecting the height of the material. The detection component 20 has a downward-flipping working position and an upward-flipping maintenance position. When the detection component 20 is in the maintenance position, it flips upward and the detection ends 2121 face upward. When the detection component 20 is in the working position, the detection ends 2121 face downward and towards the material. The detection ends 2121 form a predetermined maintenance distance with the top of the material. At least two detection ends 2121 are at different distances from the conveying surface so that the number of triggers of the detection ends 2121 is proportional to the protrusion height of the material, thereby distinguishing materials of different heights.

[0032] In this embodiment, the detection component 20 is rotatably connected to the base 10, allowing the detection component 20 to have an upward-flipping maintenance position away from the material. This enables the detection component 20 to avoid the abnormal position of the material when an abnormality occurs, allowing staff to easily intervene for inspection and adjustment without the need for time-consuming and laborious disassembly of the detection component 20, thus saving time and improving work efficiency. At the same time, when the detection component 20 is in the working position, it can detect abnormal heights of the material, promptly identify abnormal conditions, and determine different abnormal states of the material based on the number of triggers at the detection end 2121, thereby improving the automation level of material conveying.

[0033] like Figure 2As shown, in this embodiment, the rotation axis of the detection component 20 relative to the base 10 and the detection end 2121 are located on opposite sides of the detection component 20, resulting in a large distance between the rotation axis and the detection end 2121. This allows the detection component 20 to rotate away from the material, providing more space for workers to inspect and adjust the material. Specifically, in this embodiment, the material is conveyed from below the detection component 20, with the detection end 2121 close to the material and located at the bottom of the detection component 20. The rotation axis is located at the top of the detection component 20, allowing the detection component 20 to rotate above the rotation axis and away from the material at a certain distance, thus ensuring a safe distance.

[0034] In this embodiment, the arrangement direction of the detection ends 2121 is perpendicular to the material conveying direction, that is, the detection ends 2121 are arranged along the width direction of the material. This allows for several advantages: firstly, when the distance between the detection ends 2121 and the material surface varies, different height states of the material can be determined based on the different mating states between the material and different detection ends 2121; secondly, different detection ends 2121 can detect different positions along the width direction of the material, thus ensuring comprehensive detection of the material and improving the reliability of the detection. It should be noted that the width direction of the material refers to the direction perpendicular to the material conveying direction.

[0035] like Figure 1 As shown, in this embodiment, the detection component 20 includes multiple detection mechanisms 21, each detection mechanism 21 being independently and rotatably connected to the base 10, and each having a working position and a maintenance position. Each detection mechanism 21 has at least one detection end 2121. In this way, on the one hand, the number and position of the detection mechanisms 21 can be flexibly adjusted according to the width of the material. When the material width is narrow, some detection mechanisms 21 can be flipped to the maintenance position. When the material width is wide, multiple detection mechanisms 21 can be set in the working position, so that it is not necessary to frequently disassemble and assemble the detection mechanisms 21, thereby improving work efficiency. Of course, when detecting the height of the material, it is necessary to ensure that at least two detection mechanisms 21 with different distances from the material surface are in the working position.

[0036] This embodiment uses tire composition height detection as an example. Depending on the tire composition state, there are three different heights: normal single-layer material height H, double-layer material height 2H at the joint, and material height ≥3H under folding or wrinkling conditions. Figure 1As shown, this embodiment sets up two detection mechanisms 21, each with a detection end 2121, namely the first detection mechanism and the second detection mechanism. The first detection mechanism has a first detection end, and the second detection mechanism has a second detection end. The first detection end is higher than the second detection end. When normal single-layer material passes under the detection end 2121, neither of the two detection ends 2121 in this embodiment is triggered. When double-layer material at the joint passes under the detection end 2121, the second detection end is triggered. When folded or wrinkled material passes under the detection end 2121, both the first and second detection ends are triggered. In this way, when the material passes normally, neither the first nor the second detection end is triggered. When the material is in an abnormal state, the cooperation of the first and second detection ends can identify different working states, thereby facilitating the staff to discover material abnormalities and determine the different abnormal states of the material. Of course, depending on the different types of abnormal material conditions, more detection terminals 2121 with different heights can be set. For example, three detection terminals 2121 at different distances from the material can be set to determine four different height states of the material. When the four different heights satisfy H1 < H2 < H3 < H4, when the material is at height H1, none of the detection terminals 2121 are triggered; when the material is at height H2, one detection terminal 2121 is triggered; when the material is at height H3, two detection terminals 2121 are triggered; and when the material is at height H4, all three detection terminals 2121 are triggered. This can also satisfy the requirement of detecting different height states of the material. Of course, the material detection device in this embodiment is not limited to the height detection of tire components; it can also be used to detect other materials and can also detect and distinguish materials at different heights.

[0037] In this embodiment, the detection mechanism 21 includes a mounting base 211 and a swing member 212, such as Figure 6As shown, the mounting base 211 is connected to the base 10 in a way that allows it to flip up and down; the swing member 212 is rotatably connected to the mounting base 211. The swing member 212 has a roller for rolling on the surface of the material. The roller serves as a detection end 2121. When the surface height of the material is higher than the height of the roller, the material pushes the swing member 212 to rotate around the mounting base 211, thereby distinguishing materials of different heights. Specifically, in this embodiment, the mounting base 211 is configured as a T-shaped plate. The end of the mounting base 211 away from the material has an extension arm extending toward the base 10. The rotation axis of the detection component 20 relative to the base 10 is located at the extension arm. A pivot is provided at the rotation axis to connect the mounting base 211 and the base 10. The swing member 212 is configured as a long strip plate and includes a vertically placed first segment and a second segment forming an angle with the first segment. A pivot is provided at the connection between the first segment and the second segment and is rotatably connected to the end of the mounting base 211 closer to the material. The second segment of the swing member 212 is closer to the material than the first segment, and a roller is provided at the end of the second segment. The bottom height of the mounting base 211 is the same as the height of the roller, thus providing space for the rotation of the oscillating component 212 and avoiding interference with the material. The roller is a cylindrical roller, which not only reduces damage to the material but also improves the stability and accuracy of the detection. When the detection mechanism 21 is in operation, the material is conveyed from below the roller. When the material reaches an abnormal height above the lower end of the roller, the material comes into contact with the roller, thereby triggering the detection end 2121, causing the oscillating component 212 to rotate around the mounting base 211 as the material is conveyed.

[0038] like Figures 2 to 5 As shown, in this embodiment, the swing member 212 forms a first rotation center 214 relative to the mounting base 211, and the mounting base 211 forms a second rotation center 215 relative to the base 10. When the detection mechanism 21 is in the working position, the first rotation center 214 is closer to the material than the second rotation center 215, thereby increasing the detection accuracy of the detection end 2121 and providing a larger clearance space for the detection component 20. Specifically, the rotation of the swing member 212 relative to the mounting base 211 is for detecting different heights of the material. Since the height difference of the material is small, the rotation center of the swing member 212 is set close to the material, resulting in a smaller swing amplitude and higher sensitivity. The rotation of the mounting base 211 relative to the base 10 is for avoiding abnormal parts of the material, therefore the rotation center of the mounting base 211 is set far away from the material, resulting in a larger swing amplitude and thus providing a larger clearance space.

[0039] In this embodiment, the detection mechanism 21 further includes a sensor 213 connected to the mounting base 211. When the swing member 212 rotates around the mounting base 211, it triggers the sensor 213, which then emits an indication signal to indicate changes in the material's height. This not only improves the detection speed but also reduces detection errors caused by human factors, thereby reducing manual intervention and improving detection efficiency. When a change in the material's height triggers the detection end 2121, causing the swing member 212 to rotate around the mounting base 211, it triggers the sensor 213. The sensor 213 may or may not generate an indication signal, allowing operators to judge changes in the material's height by interpreting the indication signal from the sensor 213, thus improving the automation level of the detection process.

[0040] In this embodiment, at least one detection mechanism 21 includes multiple sensors 213. The sensors 213 are located at different rotation angles of the swing member 212. Different sensors 213 are triggered when the swing member 212 is at different rotation angles. Thus, one detection mechanism 21 can detect multiple heights of the material, thereby obtaining more detailed material height information. Specifically, the first detection mechanism in this embodiment includes one sensor 213, capable of determining whether the material has triggered the detection end 2121 of the first detection mechanism. The second detection mechanism includes two sensors 213, an upper sensor and a lower sensor, which, through their cooperation, determine whether the material has triggered the detection end 2121 of the second detection mechanism, as well as the material's height information. In this embodiment, the upper and lower sensors can be triggered simultaneously, working in conjunction with the sensor 213 of the first detection mechanism to provide signal indications of different material heights. Of course, depending on the actual situation, the upper and lower sensors can also be set to be triggered according to different heights. For example, the upper sensor can be set to trigger when the material is at 2H, and the upper and lower sensors can be triggered at 3H. In this way, by setting multiple sensors 213 at different angles of the swinging component 212, multi-level detection of the material height can be achieved, thereby providing more refined grading information.

[0041] In this embodiment, the material detection device further includes an adjusting member 30, which is movably connected to the base 10 and abuts against the mounting base 211. The adjusting member 30 can adjust the distance between the base 10 and the mounting base 211 to adjust the initial height of the roller, thereby enabling the material detection device to be applicable to materials of various thicknesses, thus improving the adaptability and versatility of the material detection device. That is, when the normal single-layer material height is different, it is not necessary to disassemble the material detection device; only the distance between the roller and the upper surface of the material needs to be adjusted, thereby saving time and cost. Optionally, the adjusting member 30 can use a set screw. It should be noted that the initial height refers to the set height of the roller when the material has not triggered the roller. The process of adjusting the initial height of the roller in this embodiment is as follows: place the reference plate below the roller, and adjust the overall height of the mounting base 211 and the swing member 212 by adjusting the set screw; after the adjustment is completed, place the tire component rubber material under the adjusted swing member 212 to simulate contact with the tire component, so that the sensor 213 has a signal state switch.

[0042] The material detection device of this embodiment is used to detect the height of tire components, and the detection component 20 can be flipped onto the base 10 without falling off, so that it is not necessary to disassemble the detection component 20 when dealing with abnormal material conveying conditions. The specific usage process is as follows: 1. When normal tire components pass under the detection component 20, the rollers of the first detection mechanism and the second detection mechanism are raised to a height h1, and the swinging component 212 swings around the first rotation center 214. The sensor 213 on the first detection mechanism generates a signal indication, while the sensor 213 on the second detection mechanism does not generate a signal indication; 2. When the tire component overlap joint passes under the detection component 20, the rollers in the first detection mechanism and the second detection mechanism continue to rise from h1, and the swinging component 212 swings around the first rotation center 214. 2. When the tire component 20 is folded or wrinkled below the detection assembly 20, the rollers of the first and second detection mechanisms continue to rise from h1, the swinging component 212 sways around the first rotation center 214, the sensor 213 of the first detection mechanism generates a signal indication, and both sensors 213 of the second detection mechanism generate signal indications; 4. Adjust the tire forming process according to the signal indications; 5. When an abnormal state of the tire component is detected, the first and second detection mechanisms flip around the second rotation center 215 and move above the base 10, and the staff handles the abnormality.

[0043] like Figure 1As shown, in this embodiment, the material detection device further includes a feeding pressure roller device 40, which is connected to the base 10. Along the material conveying direction, the feeding pressure roller device 40 is located upstream of the detection component 20, and the material passes sequentially through the feeding pressure roller device 40 and the detection component 20. In this way, the feeding pressure roller device 40 can press down on the head portion of the first conveyed material, ensuring that the head of the material is kept in the conveying process without falling off, and guaranteeing the accuracy of subsequent detection by the detection component 20.

[0044] like Figure 7 As shown, the feeding pressure roller device 40 of this embodiment includes a bracket 41, a sliding frame 42, and a locking member 44. The bracket 41 is the main connecting part and is connected to the base 10. The sliding frame 42 is vertically connected to the bracket 41, and a guide rail or other structure can be set between the two. The bottom end of the sliding frame 42 has a pressure roller 43 for pressing down the material, so that the pressure roller 43 and the sliding frame 42 can move up and down synchronously. When it is necessary to press down the material, the pressure roller 43 is located in a lower position. When not in use, the pressure roller 43 and the sliding frame 42 can be pushed upward together to avoid the material.

[0045] To ensure that the pressure roller 43 and the sliding frame 42 are held in an upper position and do not come into contact with the material, this embodiment also includes a locking member 44. The locking member 44 cooperates with the structure on the support 41 to lock the position of the sliding frame 42. Specifically, the side of the support 41 has an upwardly extending inclined surface 411. The locking member 44 is movably mounted on the sliding frame 42 and can move laterally relative to the sliding frame 42. The end of the locking member 44 can abut against the inclined surface 411. The inclined surface 411 slopes upward towards the locking member 44. Thus, when the pressure roller 43 and the sliding frame 42 are in a lower position and are in contact with the material during roller pressing, the end of the locking member 44 abuts against the lower end of the inclined surface 411. When the sliding frame 42 moves upward under human operation or driven by a drive component, the locking member 44 rises under the drive of the sliding frame 42, and at the same time, the locking member 44 moves laterally due to the action of the inclined surface 411. Because of the inclination direction of the inclined plane 411, the top of the inclined plane 411 has a laterally extending locking surface. When the sliding frame 42 drives the pressure roller 43 and the locking member 44 to move upward to the predetermined position, the pressure roller 43 separates from the material. At this time, the locking member 44 moves to the top of the inclined plane 411, and the locking member 44 is located at the locking surface. The locking member 44 extends laterally so that it extends into the position above the locking surface. At this time, the locking member 44 and the locking surface form an upper and lower limiting abutment relationship, so that the sliding frame 42 cannot descend due to the action of the locking member 44, thereby keeping the sliding frame 42 and the pressure roller 43 in the position separated from the material. The locking member 44 can be in the form of a pin, and a spring can be sleeved on it. The spring allows the locking member 44 to always abut against the inclined plane 411 and to automatically extend into the position above the locking surface.

[0046] In this embodiment, the feeding pressure roller device 40 is mainly used to press down the head of the first conveyed material. When the first material is conveyed smoothly, the pressure roller 43 of the feeding pressure roller device 40 can rise. After that, the pressure roller 43 no longer presses down the material, and the material can be conveyed smoothly under the action of conveying inertia. Of course, the pressure roller 43 can also be kept in a lower position so that the pressure roller 43 can play a role in the entire material conveying process.

[0047] It should be noted that "multiple" in the above embodiments refers to at least two.

[0048] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0049] 1. This solves the problem of time-consuming and labor-intensive disassembly of material detection devices in existing technologies;

[0050] 2. By setting the detection component to be rotatably connected to the base, the detection component can be flipped upwards to a maintenance position away from the material. This allows the detection component to avoid the abnormal position of the material when abnormality occurs, so that the staff can intervene smoothly to check and adjust without having to disassemble the detection component, thus saving time and improving work efficiency.

[0051] 3. When the detection component is in the working position, it can detect abnormal material height, promptly identify abnormal material conditions, and determine different abnormal states of the material based on the number of triggers at the detection end, thereby improving the automation level of material conveying.

[0052] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0054] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A material detection device, characterized in that, include: Base (10); The detection component (20) is rotatably connected to the base (10). The detection component (20) has multiple detection ends (2121) for detecting the height of the material. The detection component (20) has a downward-flipping working position and an upward-flipping maintenance position. When the detection component (20) is in the maintenance position, the detection component (20) flips upward and the detection ends (2121) face upward. When the detection component (20) is in the working position, the detection ends (2121) face downward and towards the material. The detection ends (2121) form a predetermined maintenance distance with the top of the material. At least two of the detection ends (2121) are at different distances from the conveying surface so that the number of triggers of the detection ends (2121) is proportional to the protrusion height of the material to distinguish materials of different heights.

2. The material detection device according to claim 1, characterized in that, The rotation axis of the detection component (20) relative to the base (10) and the detection end (2121) are located on both sides of the detection component (20).

3. The material detection device according to claim 1, characterized in that, The arrangement direction of the detection ends (2121) is perpendicular to the conveying direction of the material.

4. The material detection device according to claim 1, characterized in that, The detection component (20) includes multiple detection mechanisms (21), each detection mechanism (21) is independently and rotatably connected to the base (10), and each has a working position and a maintenance position. Each detection mechanism (21) has at least one detection end (2121).

5. The material detection device according to claim 4, characterized in that, The testing organization (21) includes: Mounting base (211), wherein the mounting base (211) is connected to the base (10) in a way that allows it to be flipped up and down; A swing member (212) is rotatably connected to the mounting base (211). The swing member (212) has a roller for rolling on the surface of the material. The roller serves as the detection end (2121). When the surface height of the material is higher than the height of the roller, the material pushes the swing member (212) to rotate around the mounting base (211).

6. The material detection device according to claim 5, characterized in that, The swing member (212) forms a first rotation center (214) relative to the mounting base (211), and the mounting base (211) forms a second rotation center (215) relative to the base (10). When the detection mechanism (21) is in the working position, the first rotation center (214) is closer to the material than the second rotation center (215).

7. The material detection device according to claim 5, characterized in that, The detection mechanism (21) also includes a sensor (213), which is connected to the mounting base (211). When the swing member (212) rotates around the mounting base (211), the sensor (213) is triggered and the sensor (213) sends an indication signal to indicate the change in the height of the material.

8. The material detection device according to claim 7, characterized in that, At least one of the detection mechanisms (21) includes a plurality of sensors (213) located at different rotation angles of the swing member (212), and different sensors (213) are triggered when the swing member (212) is at different rotation angles.

9. The material detection device according to claim 5, characterized in that, The material detection device further includes an adjusting member (30), which is movably connected to the base (10) and abuts against the mounting seat (211). The adjusting member (30) can adjust the distance between the base (10) and the mounting seat (211) to adjust the initial height of the roller.

10. The material detection device according to any one of claims 1 to 9, characterized in that, The material detection device also includes a feeding roller device (40), which is connected to the base (10). Along the material conveying direction, the feeding roller device (40) is located upstream of the detection component (20), and the material passes through the feeding roller device (40) and the detection component (20) in sequence.

11. The material detection device according to claim 10, characterized in that, The feeding roller device (40) includes: A bracket (41) is connected to the base (10); A sliding frame (42) is vertically connected to the support (41), and the bottom end of the sliding frame (42) has a pressure roller (43) for pressing down the material; The locking member (44) has a slope (411) on the side of the bracket (41). The locking member (44) is movably mounted on the sliding frame (42) and abuts against the slope (411). The slope (411) is inclined from bottom to top towards the locking member (44), and the top of the slope (411) has a locking surface that extends laterally. When the sliding frame (42) drives the pressure roller (43) to move upward, the locking member (44) moves along the slope (411). When the locking member (44) moves to the top of the slope (411), the locking member (44) is located at the locking surface and abuts against the upper and lower limits of the locking surface.

12. A molding machine, characterized in that, The material detection device includes any one of claims 1 to 11.

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