Material feeding and discharging safety operation mechanism

Abstract

This invention relates to the field of feeding and discharging equipment technology, and discloses a safe operating mechanism for feeding and discharging equipment. The mechanism includes a first component and a second component. The first and second components are connected such that when a load is applied to the first component in one direction, causing it to displace, the second component responds to the linkage action of the first component and also displaces. The thrust generated during displacement acts on a switch button. The operating mechanism also includes a third component and an elastic element. The first and third components are connected such that when the first component displaces, the third component also responds to the linkage action of the first component and displaces. This invention has the technical effect of requiring the operator to follow the feeding and discharging equipment throughout the unloading process until unloading is complete, thereby ensuring the operator's personal safety.

Description

Technical Field

[0001] This invention relates to the field of feeding and discharging equipment technology, specifically to a feeding and discharging safety operating mechanism. Background Technology

[0002] A wood chipper is a device for crushing wood. It achieves the function of crushing wood through the squeezing action of two opposing rotating rollers. During the rolling process, jamming may occur, so the two rollers can also rotate in opposite directions to achieve the function of unloading the material.

[0003] To enable the rollers to rotate forward and backward, a hydraulic motor is typically used for power, with a directional valve acting as the switch to control the motor. The directional valve button has three positions: upper, middle, and lower, used to control the feeding, stopping, and discharging operations of the two rollers, respectively.

[0004] In the existing technology, the wood chipper is manually fed into the feed inlet by operating the reversing valve button to the upper position, so that the roller pressure rod performs the chipping operation. In case of emergency or when it is necessary to stop chipping, the reversing valve button is operated to the middle position, so that the roller pressure rod stops working. When jamming occurs, the reversing valve button is operated to the lower position, so that the roller pressure rod performs the unloading operation. The function of operating the reversing valve button can be operated by electrical control.

[0005] The drawback of this operation is that the wood is ejected from the feed inlet during the unloading process, which poses a significant safety hazard to the operator at the feed inlet. If the operator does not notice the ejected wood during the unloading process, the wood may impact the operator and cause injury. Summary of the Invention

[0006] Based on the deficiencies in the aforementioned background technology, the present invention proposes a solution: a mechanism for controlling the reversing valve button is installed at the feed inlet of the wood chipper, so that when the roller is in the unloading process, the operator needs to follow the operation throughout the process until the unloading is completed; otherwise, the mechanism automatically controls the reversing valve to the stop position.

[0007] Based on this idea, this application provides a safe operating mechanism for feeding and discharging materials. This operating mechanism is applied to feeding and discharging equipment to control the switching of the feeding and discharging equipment, wherein the switch has a working position and a stop position.

[0008] The difference between this operating mechanism and the traditional structure is that it includes a first component and a second component; the connection between the first component and the second component is configured such that when a load in one direction is applied to the first component, causing the first component to displace, the second component can respond to the linkage action of the first component and displace, and the thrust generated during the displacement acts on the button of the switch, so that the switch is in the working position and the stop position under different degrees of thrust.

[0009] Furthermore, the operating mechanism also includes a third component and a flexible element;

[0010] The connection between the first component and the third component is configured such that when the first component is displaced, the third component can also be displaced in response to the linkage of the first component, so that the third component is in the working position and the stop position under different displacements.

[0011] The connection between the elastic element and the third component is configured such that: the load applied to the first component is removed.

[0012] When the third component is in the stop position, the elastic element provides elastic force to fix the third component in place.

[0013] When the third component is in at least one of the working positions, the elastic element provides elastic force to displace the third component to the stop position. In a wood chipper, this at least one working position is the unloading position.

[0014] The purpose of this design is to allow manual operation of the first component to control the second component, which in turn controls the working position of the switch. Simultaneously, the first component's linkage with the third component ensures the third component is also in its corresponding working position. The elastic element then controls whether the third component is locked, thereby controlling whether the switch is locked. When this operating mechanism is applied to a wood chipper, to keep the third component continuously in the unloading position, a continuous load must be manually applied to the first component. Otherwise, under the elastic force, the third component will be pulled back to the stop position and locked. This means the operator must continuously apply force to achieve the unloading function, thus preventing damage to the operator from the unloading wood.

[0015] Preferably, the connection between the elastic element and the third component is further configured such that: when the load applied to the first component is removed, and the third component is in the remaining working position, the elastic element provides elastic force to fix the state of the third component. In the case of a wood chipper, the remaining working position is the feeding position. That is, when the third component is in the feeding position, its state can be fixed, and thus, under the linkage action, the states of the first component and the second component are also locked, that is, the feeding state of the switch is locked.

[0016] Preferably, at least one of the working positions corresponding to the third component is the discharge position, and the remaining working positions are the feed positions.

[0017] Preferably, the connection between the third component and the first component is as follows: one end of the third component is hinged to the first component, and the other end is used to connect with the feeding and discharging equipment for relative rotation, so that when the first component is displaced, the third component undergoes angular displacement with the position of its relative connection with the feeding and discharging equipment as the center, thereby realizing the linkage effect of the first component on the third component.

[0018] Preferably, the third component is provided with a groove, one end of the elastic element is connected to a roller, the roller is placed in the groove, and the other end of the elastic element is used to be fixedly connected to the feeding and discharging equipment, so that the elastic element forms a restoring deformation force in its extension direction. This restoring deformation force acts on the third component to lock the state of the third component.

[0019] Preferably, there are several slots, including working slots and stop slots. At least one working slot is farther from the other end of the elastic element than the stop slot is farther from the other end of the elastic element. The working slot and the stop slot are smoothly connected by a slope. When the linkage between the first component and the third component disappears, the roller can fall from the working slot into the stop slot under the deformation of the elastic element. That is, the working slot corresponds to the unloading position in the crusher, so that the linkage effect on the third component disappears. When the unloading position is reached, the restoring deformation force of the elastic element can make the roller roll into the stop slot, thereby driving the third component to return to the stop position.

[0020] Preferably, a stop is formed between the remaining working slots and the stop slot, so that when the linkage between the first component and the third component disappears, the roller can fix the state of the third component in the remaining working slots or the stop slot under the deformation of the elastic element. That is, the remaining working slots correspond to the feeding positions in the crusher. In this way, when the roller is in the working slot or the stop slot, even if it is subjected to elastic tension, it will be fixed in the current slot under the action of the stop, thus fixing the state of the third component.

[0021] Preferably, the operating mechanism further includes a fourth component, which has a first end connected to the roller, a second end for relative rotation with the feeding and discharging equipment, and a free end; the shape of the fourth component is configured such that when a load is applied to the free end of the fourth component, the fourth component can be driven to undergo angular displacement along its second end, thereby causing the first end of the fourth component to undergo angular displacement and disengage from the remaining working slots or the stop slots.

[0022] The advantage of this setup is that, due to the presence of the stop, if you want to change the switch state by applying a load to the first component while it is in the locked state, you need to apply a large force to the first component to make the roller pass the stop. However, you can use the lever effect of the fourth component to apply force to the fourth component, which can easily apply force to the roller to make it leave the current slot, and then apply force to the first component.

[0023] In case of an emergency during feeding, a large force can be applied to the first component to stop the feeding equipment.

[0024] Preferably, the second component specifically comprises an L-shaped rod and a straight rod; one end of the L-shaped rod is hinged to the first component, and the corner is used to form a relative rotational connection with the feeding and discharging equipment, so that the L-shaped rod can undergo angular displacement under the linkage of the first component; one end of the straight rod is hinged to the other end of the L-shaped rod, and the other end is used to connect to the button of the switch, so that the straight rod can undergo linear displacement under the linkage of the L-shaped rod, thereby controlling the button of the switch.

[0025] Preferably, the operating mechanism further includes an operating lever, which is fixedly connected to the first component and is used to apply a load in one direction to the first component via the operating lever. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of the material feeding and discharging safety operation mechanism installed at the feed inlet of the wood chipper in an embodiment of the present invention;

[0028] Figure 2 This is a detailed diagram of the material feeding and discharging safety operation mechanism in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the third component in an embodiment of the present invention;

[0030] In the picture:

[0031] First component 1;

[0032] Second component 2, L-shaped rod 21, vertical rod 211, horizontal rod 212, straight rod 22;

[0033] The third component 3 includes: feed chute 31, discharge chute 32, stop chute 33, slope 34, and stop 35.

[0034] Elastic component 4, roller 41, rivet 42;

[0035] Fourth component 5, first end 51, second end 52, free end 53, first lever arm 54, second lever arm 55;

[0036] Control lever 6;

[0037] Feed inlet 7;

[0038] 8. Reversing valve. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example: This example provides the best implementation scheme for the safe operation mechanism for feeding and discharging materials, and illustrates its application on a wood chipper.

[0041] Specifically, such as Figure 1 The operating mechanism is installed on the outside of the feed inlet 7 of the wood chipper, and the reversing valve 8 that controls the roller pressure rod is also installed on the outside of the feed inlet 7, so that the operating mechanism controls the reversing valve 8. The button of the reversing valve 8 has three positions: upper position, middle position and lower position, which correspond to the feeding position, the stop position and the discharge position respectively.

[0042] Furthermore, such as Figure 2 The operating mechanism includes a first component 1 and a second component 2. The connection between the first component 1 and the second component 2 is configured such that when a load in one direction is applied to the first component 1 to cause the first component 1 to move, the second component 2 can move in response to the linkage action of the first component 1. The thrust generated during the displacement acts on the button of the reversing valve, so that the reversing valve is in the working position and the stop position under different degrees of thrust.

[0043] Furthermore, in this embodiment, as Figures 1-2 The first component 1 is a rod extending along the feeding direction, with one end close to the feed port 7 on the feeding side, and the middle part is hinged to the second component 2.

[0044] Furthermore, in this embodiment, as Figure 2 The second component 2 specifically includes an L-shaped rod 21 and a straight rod 22.

[0045] Among them, such as Figure 2 One end of the L-shaped rod 21 is hinged to the first component 1, and the corner is used to form a relative rotational connection with the feeding and discharging equipment, so that the L-shaped rod 21 can undergo angular displacement under the linkage of the first component 1.

[0046] Specifically, such as Figure 2 The L-shaped rod 21 includes a longer vertical rod 211 and a shorter horizontal rod 212. The vertical rod 211 and the horizontal rod 212 are integrally formed, and the vertical rod 211 forms an angle with the first component 1. One end of the vertical rod 211 is hinged to the middle of the first component 1 by a pin. At the position where the vertical rod 211 and the horizontal rod 212 are connected, the vertical rod 211 is hinged to the side wall of the feed port 7 by a pin.

[0047] Among them, such as Figure 2 One end of the straight rod 22 is hinged to the other end of the L-shaped rod 21, and the other end is used to connect to the button of the reversing valve 8, so that the straight rod 22 can be linearly displaced under the linkage of the L-shaped rod 21, thereby controlling the button of the reversing valve 8.

[0048] Specifically, such as Figure 2 The straight rod 22 also forms an angle with the first component 1, and one end of it is hinged to the end of the transverse rod 212 by a pin.

[0049] Furthermore, such as Figure 2 The operating mechanism also includes a third component 3 and an elastic element 4.

[0050] Furthermore, the connection between the first component 1 and the third component 3 is configured such that when the first component 1 is displaced, the third component 3 can also be displaced in response to the linkage of the first component 1, so that the third component 3 is in the feeding position, the stop position and the discharge position under different displacements.

[0051] Specifically, in this embodiment, such as Figure 2 The third component 3 is a rod, one end of which is hinged to the end of the first component 1 away from the feeding position by a pin, and the other end is hinged to the side wall of the feed port 7 by a pin. When it responds to the displacement of the first component 1, it undergoes angular displacement with the position of its connection with the feed port 7 as the center. Different rotational displacements correspond to the feeding position, the stop position and the discharge position, respectively.

[0052] Furthermore, the connection between the elastic element 4 and the third component 3 is configured such that: when the load applied to the first component 1 is removed,

[0053] When the third component 3 is in the feeding position or the stop position, the elastic element 4 provides elastic force to fix the third component 3.

[0054] When the third component 3 is in the unloading position, the elastic element 4 provides elastic force to displace the third component 3 to the stop position.

[0055] Specifically, such as Figure 2 In this embodiment, the elastic element 4 is a cylindrical spring, and the elastic deformation force occurs along its extension direction. The third component 3 is provided with several slots, which are opened at the end of the third component 3 near the first component 1. The several slots are distributed along the direction in which the third component 3 is displaced. One end of the elastic element 4 is attached to a roller 41, which is placed in one of the slots. The other end of the elastic element 4 is fixedly connected to the side wall of the feed port 7 through a pull stud 42, so that the elastic element 4 forms a restoring deformation force in its extension direction, which acts on the current slot where the roller 41 is placed, thereby affecting the current state of the third component 3.

[0056] Furthermore, such as Figure 3 The slots specifically include working slots and stop slots 33. The working slots include feeding slots 31 and discharging slots 32. The distance from the other end of the elastic element 4 to the discharging slot 32 is greater than the distance from the other end of the elastic element 4 to the stop slot 33. The discharging slot 32 and the stop slot 33 are smoothly connected by a slope 34. When the linkage between the first component 1 and the third component 3 disappears, the roller 41 can fall from the discharging slot 32 into the stop slot 33 through the slope 34 under the deformation of the elastic element 4. This controls the third component 3 to be in the stop position at this time, thereby linking the first component 1 and the second component 2, controlling the reversing valve 8 to be in the neutral position, and stopping the operation.

[0057] Furthermore, such as Figure 3 A stop 35 is formed between the feed groove 31 and the stop groove 33, so that when the linkage between the first component 1 and the third component 3 disappears, the roller 41 can fix the state of the third component 3 in the feed groove 31 or the stop groove 33 under the deformation of the elastic element 4. That is, the elastic deformation force at this time is not enough to drive the roller 41 to cross the stop 35, but to fix the third component 3.

[0058] Furthermore, such as Figure 2 The operating mechanism also includes a fourth component 5, which has a first end 51 connected to the roller 41, a second end 52 hinged to the side wall of the feed port 7 by a pin, and a free end 53. The fourth component 5 and the elastic member 4 are located on opposite sides of the third component 3, thus preventing the roller 41 from dislodging from the groove.

[0059] Furthermore, the shape of the fourth component 5 is configured such that when a load is applied to the free end 53 of the fourth component 5, the fourth component 5 can be driven to undergo angular displacement along its second end 52, thereby causing the first end 51 of the fourth component 5 to undergo angular displacement and disengage from the remaining working slots or the stop slot 33.

[0060] Specifically, such as Figure 2 The fourth component 5 extends from the second end 52 toward the first end 51 to form a first lever arm 54, and extends toward the free end 53 to form a second lever arm 55. The length of the second lever arm 55 is greater than the length of the first lever arm 54. Thus, the roller 41 can be easily disengaged from the current slot by applying force to the second lever arm 55.

[0061] Furthermore, such as Figure 2 This operating mechanism also includes an operating lever 6, such as Figure 1 As shown, the operating lever 6 has a U-shaped structure and is fixedly connected to the end of the first component 1 away from the third component 3. It is exposed at the feed inlet 7 to facilitate the application of a load in one direction to the first component 1 through the operating lever 6.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0063] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A safety operating mechanism for feeding and discharging, which is applied to a feeding and discharging device for controlling a reversing valve of the feeding and discharging device, wherein the reversing valve has a working position and a stop position, and the working position includes a discharging position and a feeding position; characterized in that: the operating mechanism comprises a first component and a second component; the first component and the second component are connected in such a way that when the first component is displaced by applying a load in a certain direction, the second component is displaced in response to the linkage of the first component, and a pushing force generated by the displacement acts on a button of the reversing valve, so that the reversing valve is in the working position and the stop position respectively under different pushing forces; the operating mechanism further comprises a third component and an elastic member; the first component and the third component are connected in such a way that when the first component is displaced, the third component is also displaced in response to the linkage of the first component, so that the third component is in the working position and the stop position respectively under different displacements; the elastic member and the third component are connected in such a way that when the load applied to the first component is removed, the third component is in the stop position, the elastic member provides an elastic force to fix the state of the third component; when the third component is in the discharging position, the elastic member provides an elastic force to displace the third component to the stop position; and when the load applied to the first component is removed, the third component is in the feeding position, the elastic member provides an elastic force to fix the state of the third component. One end of the third component is hinged to the first component, and the other end is connected to the feeding and discharging device in a relative rotation manner, so that when the third component is displaced in response to the displacement of the first component, the third component is angularly displaced with the position connected to the feeding and discharging device as the center. The third component is provided with a slot, one end of the elastic member is connected with a roller, the roller is placed in the slot, and the other end of the elastic member is fixedly connected to the feeding and discharging device, so that the elastic member forms a restoring deformation force in the extension direction thereof. The slot has a plurality of slot positions, including a working slot position and a stop slot position, wherein the distance between at least one working slot position and the other end of the elastic member is greater than the distance between the stop slot position and the other end of the elastic member, and the working slot position and the stop slot position are smoothly connected through a slope surface, and when the linkage of the first component to the third component disappears, the roller falls into the stop slot position from the working slot position under the deformation of the elastic member. The remaining working slot positions and the stop slot positions are formed with a stop, and when the linkage of the first component to the third component disappears, the roller falls into the remaining working slot positions or the stop slot positions under the deformation of the elastic member, so as to fix the state of the third component. The operating mechanism further comprises a fourth component, and the fourth component has a first end connected with the free end of the roller and a second end connected to the feeding and discharging device in a relative rotation manner. ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The in-out feed safety operating mechanism according to claim 1, characterized in that: ​ 3. The in-out feed safety operating mechanism according to claim 2, characterized in that: ​ 4. The access safety operating mechanism according to claim 3, characterized in that: ​ 5. The access safety operating mechanism according to claim 4, characterized in that: ​ 6. The access safety operating mechanism according to claim 5, characterized in that: ​ The fourth component is configured to be angularly displaced along its second end when a load is applied to the free end of the fourth component, thereby causing the first end of the fourth component to be angularly displaced out of the remaining working slots or into the stop slot.

7. The infeed / outfeed safety operating mechanism according to claim 1, characterized in that: The second component comprises an L-shaped lever and a straight lever. One end of the L-shaped lever is hingedly connected to the first component, and the corner thereof is connected to the feeding and discharging device to rotate relative to the L-shaped lever, so that the L-shaped lever is angularly displaced under the linkage action of the first component. One end of the straight lever is hingedly connected to the other end of the L-shaped lever, and the other end thereof is connected to the button of the reversing valve, so that the straight lever is linearly displaced under the linkage action of the L-shaped lever, thereby controlling the button of the reversing valve.

8. The infeed / outfeed safety operating mechanism according to claim 1, characterized in that: The operating mechanism further comprises an operating rod, which is fixedly connected to the first component, and a load is applied to the first component through the operating rod.

Images