A material lifting device and working method thereof

Abstract

The present invention relates to the technical field of cold heading machines, and discloses a material ejection device and a working method thereof, wherein the material ejection device comprises a device body, a sliding member, a transmission assembly, a material ejection assembly and an adjustable limit assembly, wherein the sliding member is arranged in the device body, and the sliding member can move up and down in the device body; the upper end of the transmission assembly is movably connected to the sliding member, and the lower end of the transmission assembly is located above the material ejection assembly; the adjustable limit assembly is detachably connected to the device body, and the adjustable limit assembly is arranged on one side of the transmission assembly; when the sliding member moves upward, it can drive the transmission assembly to contact the adjustable limit assembly, so that the transmission assembly swings, so that the lower end of the transmission assembly can push the material ejection assembly to move downward, thereby realizing the material ejection action. Through the above arrangement, the sliding member can perform the material ejection action when it just starts to move upward, and the material ejection time and stroke can be adjusted, and the application range is wide.

Description

Technical Field

[0001] The invention belongs to the technical field of cold heading machines, and in particular relates to a feeding device for a cold heading machine and a working method thereof. Background Art

[0002] Cold heading machine is a device that forges the top of bars or wires at room temperature. Cold heading machine is mainly used to manufacture parts such as bolts and screws. The heads of bolts and screws are forged by cold heading method, which can minimize or eliminate cutting and directly form them into the shape and size people want. It not only saves a lot of materials, but also greatly improves production efficiency and significantly improves the mechanical strength of the forged parts.

[0003] However, the punching seat of the upper ejecting mechanism of the existing cold heading machine is fixed to the machine body. When the slider makes a reciprocating motion up and down, the punching rod can only contact with the punching seat when the slider rises to a certain height to realize the ejecting work, otherwise the two will collide with each other. That is to say, the ejecting mechanism can only work when the slider rises to a certain height, which has low working efficiency, and the ejecting time and stroke cannot be adjusted. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a material lifting device and a working method thereof, which has high working efficiency, can adjust the material lifting time and stroke, and has a wide range of applications.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows.

[0006] A material lifting device comprises a device body, a sliding member, a transmission assembly, a material lifting assembly and an adjustable limit assembly, wherein the sliding member is arranged in the device body and can move up and down in the device body; the upper end of the transmission assembly is movably connected to the sliding member, and the lower end of the transmission assembly is located above the material lifting assembly; the adjustable limit assembly is detachably connected to the device body, and the adjustable limit assembly is arranged on one side of the transmission assembly; when the sliding member moves upward, it can drive the transmission assembly to contact the adjustable limit assembly, so that the transmission assembly swings, so that the lower end of the transmission assembly can push the material lifting assembly to move downward, thereby realizing the material lifting action.

[0007] In the present invention, by setting the adjustable limit assembly, the sliding part can perform the lifting action at the first time when it just starts to move upward, thereby realizing the lifting effect, and by the connection method between the adjustable limit assembly and the device body, the position height of the adjustable limit assembly can be adjusted, so that the lifting time and stroke can be adjusted, and the lifting of some special parts can also be realized in the stamping processing; through the above-mentioned setting, the lifting device has high working efficiency, can adjust the lifting time and stroke, and has a wide range of applications.

[0008] Furthermore, the upper ejection device also includes a reset component, which is connected to the ejection component. When there is no external force acting on the ejection component, the reset component can drive the ejection component to move upward; when the sliding member moves downward, it can drive the transmission component to swing so that its lower end is away from the ejection component, so that the reset component can drive the ejection component to move upward to reset. In the present invention, through the above arrangement, the up and down reciprocating motion of the sliding member can realize the up and down reciprocating motion of the ejection component, thereby realizing a reciprocating ejection action, and the working efficiency is high.

[0009] Further, the adjustable limit assembly is provided with a first concave curved surface and a second convex curved surface on one side facing the transmission assembly, the second curved surface is located above the first curved surface, the lower end of the transmission assembly is provided with a third concave curved surface and a fourth convex curved surface, the fourth curved surface is located on the lower end of the transmission assembly close to the side of the adjustable limit assembly;

[0010] When the transmission assembly moves to contact the second curved surface as the sliding member moves upward, the transmission assembly can swing to the side away from the adjustable limit assembly, so that the fourth curved surface at the lower end of the transmission assembly can support the material lifting assembly, thereby pushing the material lifting assembly downward to achieve the material lifting action; when the transmission assembly moves to contact the first curved surface as the sliding member moves downward, the transmission assembly can swing to the side toward the adjustable limit assembly, so that the material lifting assembly is located below the third curved surface, so that the fourth curved surface at the lower end of the transmission assembly is away from the material lifting assembly, so that the reset assembly can drive the material lifting assembly to move upward. In the present invention, through the above-mentioned arrangement, the up and down reciprocating motion of the sliding member can realize the up and down reciprocating motion of the material lifting assembly, thereby realizing the reciprocating material lifting action, and the working efficiency is high.

[0011] Furthermore, the adjustable limit assembly includes a connecting top plate, an adjusting member and an upper ejection cam, the connecting top plate is fixedly connected to the device body, the upper end of the adjusting member is connected to the connecting top plate, the lower end of the adjusting member is connected to the upper ejection cam, and the adjusting member can adjust the distance between the upper ejection cam and the connecting top plate, thereby adjusting the height of the upper ejection cam, and the first arc surface and the second arc surface are arranged on the side of the upper ejection cam facing the transmission assembly. In the present invention, the setting of the upper ejection cam can cooperate with the transmission assembly to realize the first realization of the upward movement of the sliding member, which can drive the ejection assembly to realize the ejection action, and the position height of the upper ejection cam can be adjusted through the above-mentioned setting, thereby adjusting the contact time between the transmission assembly and the cam surface of the upper ejection cam, that is, the second arc surface, thereby realizing the adjustment of the ejection time and stroke, and has a wide range of applications.

[0012] Furthermore, the adjustable limit assembly also includes a first locking member for locking the adjustment member and a second locking member for locking the upper ejection cam, the first locking member is connected to the upper part of the adjustment member, and after the height of the upper ejection cam is adjusted by the adjustment member, the upper ejection cam is detachably fixedly connected to the device body by the second locking member. In the present invention, the adjustment member can be an adjustment screw, the first locking member can be a positioning nut, and the second locking member can be a fixing screw; the height adjustment, disassembly, and fixing of the upper ejection cam are facilitated.

[0013] Furthermore, the transmission assembly includes a first roller and an upper lifting cam, the sliding member is provided with a support rod connecting the transmission assembly, the upper end of the upper lifting cam is movably connected to the support rod on the sliding member, the lower end of the upper lifting cam is located above the lifting assembly, and the third arc surface and the fourth arc surface are arranged at the lower end of the upper lifting cam, the first roller is connected to the upper lifting cam through a first pin shaft, and the side surface of the first roller is opposite to the side surface of the adjustable limit assembly provided with the first arc surface and the second arc surface; when the first roller moves to contact the second arc surface as the sliding member moves upward, it can drive the upper lifting cam to swing to the side away from the adjustable limit assembly; when the first roller moves to contact the first arc surface as the sliding member moves downward, it can drive the upper lifting cam to swing toward the side of the adjustable limit assembly. In the present invention, through the arrangement of the first roller and the upper ejecting movable cam, the transmission effect can be easily achieved, so that the up and down reciprocating motion of the ejecting assembly can be achieved through the up and down reciprocating motion of the sliding member, thereby realizing a reciprocating ejecting action with high working efficiency.

[0014] Furthermore, the lifting material assembly includes an upper lifting material horizontal bar and a second roller, a movable space is provided in the middle of the sliding member, the upper lifting material horizontal bar is arranged in the movable space, and two ends of the upper lifting material horizontal bar extend out of the left and right sides of the sliding member, and the two ends of the upper lifting material horizontal bar extending out of the sliding member are connected to the second roller, the sliding member is located on the left and right sides above the upper lifting material horizontal bar and is connected to the support rods, the support rods on the left and right sides of the sliding member are connected to the transmission assembly, and the lower ends of the transmission assemblies on both sides of the sliding member are respectively located at Above the second rollers at both ends of the upper lifting cross bar, the rear sides of the lifting assemblies on the left and right sides of the sliding member are provided with the adjustable limit assemblies. When the upper lifting movable cam swings forward, the fourth arc surface presses against the second roller, thereby pushing the second roller to drive the upper lifting cross bar to move downward to realize the lifting action; when the upper lifting movable cam swings backward, the second roller is located below the third arc surface, so that the fourth arc surface is away from the second roller, so that the upper lifting cross bar can move upward to reset due to the action of the reset assembly. In the present invention, the lifting assembly is a left-right symmetrical structure, and the transmission assemblies and adjustable limit assemblies on the left and right sides of the sliding member are both symmetrically arranged. When the sliding member is at the bottom dead center, the upper lifting cross bar is at the highest point. When the sliding member moves upward, the contact between the first roller and the second arc surface pushes the upper lifting movable cam to swing back and forth.

[0015] Furthermore, the ejector assembly further includes a second pin shaft, and both ends of the upper ejector cross bar extending outside the sliding member are provided with mounting grooves adapted to the second roller, and the second rollers at both ends of the upper ejector cross bar are installed in the mounting grooves through the second pin shafts. In the present invention, the installation of the second roller can be facilitated by the provision of the mounting grooves and the second pin shafts.

[0016] Furthermore, the two ends of the upper lifting material cross bar extending outside the sliding member are fixedly connected to the upper part of the part close to the opening of the activity space, and the reset assembly is provided at the positions where the two ends of the upper lifting material cross bar are connected to the fixing members, and the reset assembly includes a reset spring seat and a spring guide pin, and the reset spring seat is fixed to the outer side of the sliding member, and the reset spring seat is located directly below the fixing member, and the height of the reset spring seat is lower than the bottom of the active space, one end of the spring guide pin is fixedly connected to the reset spring seat, and the other end of the spring guide pin passes through the fixing member so that the fixing member can move up and down along the spring guide pin, and the part of the spring guide pin located between the reset spring seat and the fixing member is sleeved with a spring, and the spring guide pins are connected to the front and rear sides of the reset spring seat, and the fixing member, the reset spring seat and the spring guide pins on the front and rear sides of the reset spring seat enclose a limited space, and the upper lifting material cross bar is located in the limited space. In the present invention, the above-mentioned arrangement can facilitate the up and down reciprocating movement of the ejecting assembly through the up and down reciprocating movement of the sliding part, thereby realizing a reciprocating ejecting action with high working efficiency; and the arrangement of the above-mentioned reset assembly can facilitate the ejecting assembly to be reset without affecting the movement of the sliding part.

[0017] Furthermore, the device body is provided with an upper push rod for pushing the material at the position at the bottom of the sliding member, and an elastic washer is provided at the lower part of the upper push rod. The upper end of the upper push rod extends through the sliding member to the activity space, and the upper end of the upper push rod is abutted against the bottom of the upper push rod. In the present invention, multiple upper push rods can be provided, and they are arranged in parallel at the bottom of the sliding member.

[0018] The present invention also provides a working method of the upper feeding device, comprising:

[0019] Ejection step: the sliding member moves upward from the bottom dead center, driving the transmission component to contact the adjustable limit component, so that the transmission component swings forward, so that the lower end of the transmission component can push the ejection component to move downward, thereby realizing the ejection action;

[0020] Reset step: when the sliding part moves to the upper dead point, it starts to move downward, driving the transmission assembly to contact the adjustable limit assembly, causing the transmission assembly to swing backward, so that the lower end of the transmission assembly is away from the lifting assembly, so that the lifting assembly loses the external force that is holding it up, and then the lifting assembly is driven to move upward to reset due to the action of the reset assembly; when the sliding part moves to the lower dead point, it starts to move upward.

[0021] The beneficial effects of the present invention are as follows: compared with the prior art, in the present invention, the device can perform the ejection action as soon as the sliding part just starts to move upward, thereby realizing the ejection effect, and the position height of the adjustable limit assembly can be adjusted, thereby adjusting the ejection time and stroke, and ejection can also be realized for the stamping processing of some special parts; the ejection device has high working efficiency, can adjust the ejection time and stroke, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the internal structure of the upper feeding device of the present invention with part of the structure cut away.

[0023] Figure 2 It is a schematic diagram of the internal structure of the upper feeding device of the present invention from a side perspective.

[0024] Figure 3 It is a schematic diagram of the internal structure of the upper feeding device of the present invention from a front perspective.

[0025] Figure 4 It is a schematic structural diagram of the sliding member, the transmission assembly and the ejection assembly of the present invention after being assembled.

[0026] Figure 5 It is a cross-sectional schematic diagram of the sliding part, the transmission component and the ejection component of the present invention after being assembled.

[0027] Figure 6 It is a schematic structural diagram of the sliding member of the present invention.

[0028] Figure 7 It is a structural schematic diagram of the upper ejecting movable cam of the present invention.

[0029] Figure 8 It is a structural schematic diagram of the upper ejecting cam of the present invention.

[0030] In the figure, the device body 1; the balancer 11; the sliding member 2; the support rod 21; the movable space 22; the transmission assembly 3; the first roller 31; the upper ejector movable cam 32; the first pin shaft 33; the ejector assembly 4; the upper ejector cross bar 41; the mounting groove 411; the second roller 42; the second pin shaft 43; the fixing member 44; the adjustable limit assembly 5; the connecting top plate 51; the adjusting screw 52; the upper ejector cam 53; the positioning nut 54; the fixing screw 55; the reset assembly 6; the reset spring seat 61; the spring guide pin 62; the upper ejector rod 7; the elastic washer 71; the first arc surface 10; the second arc surface 20; the third arc surface 30; the fourth arc surface 40. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0034] Embodiment 1:

[0035] See also Figure 1-8As shown, this embodiment provides a material ejection device, including a device body 1, a sliding member 2, a transmission assembly 3, a material ejection assembly 4, an adjustable limit assembly 5 and a reset assembly 6. The sliding member 2 is arranged in the device body 1, and the sliding member 2 can move up and down in the device body 1; the upper end of the transmission assembly 3 is movably connected to the sliding member 2, and the lower end of the transmission assembly 3 is located above the material ejection assembly 4; the adjustable limit assembly 5 is detachably connected to the device body 1, and the adjustable limit assembly 5 is arranged on one side of the transmission assembly 3; the reset assembly 6 is connected to the material ejection assembly 4, and when the material ejection assembly 4 is not acted upon by external force, the reset assembly 6 Component 6 can drive the ejecting component 4 to move upward; when the sliding member 2 moves upward, it can drive the transmission component 3 to contact the adjustable limit component 5, forcing the transmission component 3 to swing, so that the lower end of the transmission component 3 can push the ejecting component 4 to move downward, thereby realizing the ejecting action; when the sliding member 2 moves downward, it can drive the transmission component 3 to swing so that its lower end is away from the ejecting component 4, so that the reset component 6 can drive the ejecting component 4 to move upward to reset; the up and down reciprocating motion of the sliding member 2 can realize the up and down reciprocating motion of the ejecting component 4, thereby realizing the reciprocating ejecting action, and the working efficiency is high.

[0036] In this embodiment, the method of controlling the upward and downward movement of the sliding member 2 can be implemented by the existing technology. Through the setting of the adjustable limit component 5, the sliding member 2 can perform the pushing action as soon as it starts to move upward, thereby realizing the pushing effect. Moreover, through the connection method between the adjustable limit component 5 and the device body 1, the position of the adjustable limit component 5 can be adjusted, so that the pushing time and stroke can be adjusted, and the pushing can also be realized for the stamping processing of some special parts. Through the above-mentioned setting, the pushing device has high working efficiency, and the pushing time and stroke can be adjusted, and the application range is wide.

[0037] Embodiment 2:

[0038] See also Figure 1-8 As shown, this embodiment is optimized and limited based on the above-mentioned embodiment 1.

[0039] The adjustable limit assembly 5 is provided with a concave first arc surface 10 and a convex second arc surface 20 on one side facing the transmission assembly 3, the second arc surface 20 is located above the first arc surface 10, and the lower end of the transmission assembly 3 is provided with a concave third arc surface 30 and a convex fourth arc surface 40, and the fourth arc surface 40 is located on the lower end of the transmission assembly 3 close to the side of the adjustable limit assembly 5;

[0040] Specifically, the upper end of the outwardly convex second arc surface 20 is connected to a plane, the lower end of the outwardly convex second arc surface 20 is connected to the upper end of the inwardly concave first arc surface 10 , and the lower end of the inwardly concave first arc surface 10 is connected to a plane.

[0041] When the transmission assembly 3 moves to the second curved surface 20 as the sliding member 2 moves upward, the transmission assembly 3 can swing to the side away from the adjustable limit assembly 5, so that the fourth curved surface 40 at the lower end of the transmission assembly 3 can support the material lifting assembly 4, thereby pushing the material lifting assembly 4 to move downward to achieve the material lifting action; when the transmission assembly 3 moves to the first curved surface 10 as the sliding member 2 moves downward, the transmission assembly 3 can swing to the side toward the adjustable limit assembly 5, so that the material lifting assembly 4 is located below the third curved surface 30, so that the fourth curved surface 40 at the lower end of the transmission assembly 3 is away from the material lifting assembly 4, so that the reset assembly 6 can drive the material lifting assembly 4 to move upward. In this embodiment, through the above-mentioned setting, the up and down reciprocating motion of the sliding member 2 can realize the up and down reciprocating motion of the material lifting assembly 4, thereby realizing the reciprocating material lifting action, and the working efficiency is high.

[0042] Embodiment 3:

[0043] See also Figure 1-3 As shown in 8, this embodiment is optimized and limited based on the above-mentioned embodiment 2.

[0044] The adjustable limit assembly 5 includes a connecting top plate 51, an adjusting member and an upper ejection cam 53. The connecting top plate 51 is fixedly connected to the device body 1. The upper end of the adjusting member is connected to the connecting top plate 51, and the lower end of the adjusting member is connected to the upper ejection cam 53. The adjusting member can adjust the distance between the upper ejection cam 53 and the connecting top plate 51, thereby adjusting the height of the upper ejection cam 53. The first arc surface 10 and the second arc surface 20 are arranged on the side of the upper ejection cam 53 facing the transmission assembly 3.

[0045] In this embodiment, the setting of the upper ejection cam 53 can cooperate with the transmission component 3 to realize the first realization of the upward movement of the sliding member 2, which can drive the ejection component 4 to realize the ejection action, and the position of the upper ejection cam 53 can be adjusted through the above setting, thereby adjusting the contact time between the transmission component 3 and the cam surface of the upper ejection cam 53, that is, the second arc surface 20, so as to realize the adjustment of the ejection time and stroke, and has a wide range of applications.

[0046] Specifically, the adjustable limit assembly 5 also includes a first locking member for locking the adjustment member and a second locking member for locking the upper ejection cam 53, wherein the first locking member is a positioning nut 54, the second locking member is a fixing screw 55, and the adjustment member is an adjustment screw 52;

[0047] The connecting top plate 51 is vertically fixed to the side of the device body 1, one end of the adjusting screw 52 passes through the connecting top plate 51 and is detachably fixedly connected to the top of the upper ejection cam 53, and the positioning nut 54 is locked on the upper part of the adjusting screw 52. The height of the upper ejection cam 53 can be adjusted by adjusting the screw 52. After adjusting the height of the upper ejection cam 53, the positioning nut 54 is locked on the top of the adjusting screw 52, ​​and the upper ejection cam 53 is fixedly connected to the device body 1 by the fixing screw 55; wherein, the upper ejection cam 53 can be pushed up and down by turning the adjusting screw 52 up and down, and the fixing screw 55 must be loosened before turning the adjusting screw 52, ​​and the positioning nut 54 and the fixing screw 55 are tightened after the adjustment. In this embodiment, the height adjustment, disassembly and fixation of the upper ejection cam 53 are facilitated by the above-mentioned arrangement.

[0048] Embodiment 4:

[0049] See also Figure 1-8 As shown, this embodiment is optimized and limited based on the above-mentioned embodiment 2.

[0050] The transmission assembly 3 includes a first roller 31 and an upper ejection active cam 32. The sliding member 2 is provided with a support rod 21 connected to the transmission assembly 3. The upper end of the upper ejection active cam 32 is movably connected to the support rod 21 on the sliding member 2, so that the upper ejection active cam 32 can swing back and forth with the support rod 21 as the axis. The lower end of the upper ejection active cam 32 is located above the ejection assembly 4, and the third arc surface 30 and the fourth arc surface 40 are arranged at the lower end of the upper ejection active cam 32. The first roller 31 is connected to the upper ejection active cam 32 through the first pin shaft 33. The movable cam 32 is connected, and the side surface of the first roller 31 is opposite to the side surface of the adjustable limit component 5 which is provided with the first arc surface 10 and the second arc surface 20; when the first roller 31 moves to contact the second arc surface 20 as the sliding member 2 moves upward, it can drive the upper lifting material movable cam 32 to swing to the side away from the adjustable limit component 5; when the first roller 31 moves to contact the first arc surface 10 as the sliding member 2 moves downward, it can drive the upper lifting material movable cam 32 to swing to the side toward the adjustable limit component 5.

[0051] In this embodiment, through the setting of the first roller 31 and the upper ejecting movable cam 32, the transmission effect can be easily achieved, so that the up and down reciprocating motion of the ejecting assembly 4 can be achieved through the up and down reciprocating motion of the sliding member 2, thereby realizing the reciprocating ejecting action with high work efficiency.

[0052] Among them, an existing balancer 11 is also arranged on the side of the device body 1. The balancer 11 is arranged vertically, one end of the support rod 21 is vertically fixedly connected to the balancer 11, and the other end of the support rod 21 is vertically fixedly connected to the side of the device body 1.

[0053] Embodiment 5:

[0054] See also Figure 1-6 As shown, this embodiment is optimized and limited based on the above-mentioned embodiment 4.

[0055] The lifting material assembly 4 includes an upper lifting material horizontal rod 41 and a second roller 42. An activity space 22 is provided in the middle of the sliding member 2. The upper lifting material horizontal rod 41 is arranged in the activity space 22, and the two ends of the upper lifting material horizontal rod 41 extend out of the left and right sides of the sliding member 2. Both ends of the upper lifting material horizontal rod 41 extending out of the sliding member 2 are connected to the second rollers 42. The left and right positions of the sliding member 2 above the upper lifting material horizontal rod 41 are connected to the support rods 21. The support rods 21 on the left and right sides of the sliding member 2 are connected to the transmission assembly 3. The lower ends of the upper lifting material active cams 32 on both sides of the sliding member 2 are respectively located above the second rollers 42 at both ends of the upper lifting material horizontal rod 41, and the surfaces of the second rollers 42 are opposite to the lower ends of the upper lifting material active cams 32.

[0056] Adjustable limit assemblies 5 are provided on the rear sides of the upper material pushing assemblies 4 on the left and right sides of the sliding member 2. When the upper material pushing movable cam 32 swings forward, the fourth arc surface 40 presses against the second roller 42, thereby pushing the second roller 42 to drive the upper material pushing cross bar 41 to move downward to realize the pushing action; when the upper material pushing movable cam 32 swings backward, the second roller 42 is located below the third arc surface 30, so that the fourth arc surface 40 is away from the second roller 42, so that the upper material pushing cross bar 41 can move upward to reset due to the action of the reset assembly 6.

[0057] In this embodiment, the top material assembly 4 is a left-right symmetrical structure, and the transmission assembly 3 and the adjustable limit assembly 5 on the left and right sides of the sliding member 2 are both arranged symmetrically. When the sliding member 2 is at the bottom dead center, the upper top material cross bar 41 is at the highest point. When the sliding member 2 moves upward, the contact between the first roller 31 and the second arc surface 20 pushes the upper top material movable cam 32 to swing.

[0058] Specifically, the material ejection assembly 4 further includes a second pin shaft 43, and both ends of the upper material ejection cross bar 41 extending outside the sliding member 2 are provided with mounting grooves 411 adapted to the second roller 42, and the second rollers 42 at both ends of the upper material ejection cross bar 41 are installed in the mounting grooves 411 through the second pin shaft 43. In this embodiment, the installation of the second roller 42 can be facilitated by the arrangement of the mounting grooves 411 and the second pin shaft 43.

[0059] Embodiment 6:

[0060] See also Figure 1-6 As shown, this embodiment is optimized and limited based on the above-mentioned embodiment 5.

[0061] The upper part of the two ends of the upper top material cross bar 41 extending outside the sliding member 2 near the opening of the active space 22 is fixedly connected to the fixing parts 44, and the positions where the two ends of the upper top material cross bar 41 are connected to the fixing parts 44 are provided with a reset assembly 6. The reset assembly 6 includes a reset spring seat 61 and a spring guide pin 62. The reset spring seat 61 is fixed to the outer side of the sliding member 2, the reset spring seat 61 is located directly below the fixing part 44, and the height of the reset spring seat 61 is lower than the bottom of the active space 22. One end of the spring guide pin 62 is fixedly connected to the reset spring seat 61, and the other end of the spring guide pin 62 passes through the fixing part 44, so that the fixing part 44 can move up and down along the spring guide pin 62. The part of the spring guide pin 62 located between the reset spring seat 61 and the fixing part 44 is sleeved with a spring, and the front and rear sides of the reset spring seat 61 are connected to the spring guide pin 62. The fixing part 44, the reset spring seat 61 and the spring guide pins 62 on the front and rear sides of the reset spring seat 61 enclose a limited space, and the upper top material cross bar 41 is located in the limited space. In this embodiment, the above-mentioned arrangement can facilitate the up and down reciprocating movement of the ejecting assembly 4 through the up and down reciprocating movement of the sliding member 2, thereby realizing a reciprocating ejecting action with high working efficiency; and the arrangement of the above-mentioned reset assembly 6 can facilitate the ejecting assembly 4 to be reset without affecting the movement of the sliding member 2.

[0062] Embodiment 7:

[0063] See also Figure 1-5 As shown, this embodiment is optimized and limited based on the above-mentioned embodiment 6.

[0064] The device body 1 is provided with an upper ejector rod 7 for ejecting materials at the bottom of the sliding member 2, and an elastic washer 71 is provided at the lower part of the upper ejector rod 7. The upper end of the upper ejector rod 7 passes through the sliding member 2 and extends to the activity space 22, and the upper end of the upper ejector rod 7 abuts against the bottom of the upper ejector cross bar 41. In this embodiment, a plurality of upper ejector rods 7 are provided, and they are arranged in parallel at the bottom of the sliding member 2.

[0065] When the sliding member 2 moves upward, the upper ejecting cam 32 is driven to move upward through the support rod 21, so that the first roller 31 contacts the convex second arc surface 20 of the upper ejecting cam 53 as it moves upward, which drives the upper ejecting cam 32 to swing forward, so that the fourth arc surface 40 presses against the second roller 42, drives the second roller 42 to move downward, thereby drives the upper ejecting cross bar 41 to move downward, thereby pushing the upper ejector rod 7 to move downward to realize the ejecting effect, and at this time, the fixing member 44 compresses the spring to move downward;

[0066] When the sliding member 2 moves downward, the upper ejecting active cam 32 is driven downward by the support rod 21, so that the first roller 31 contacts the concave first arc surface 10 of the upper ejecting cam 53, which drives the upper ejecting cam 53 to swing backward, so that the third arc surface 30 is located on the upper part of the second roller 42, so that the second roller 42 loses the external force that is supported, and the fixing member 44 is elastically reset due to the resilience of the spring, thereby driving the upper ejecting cross bar 41 to move upward to reset;

[0067] Thus, the up and down reciprocating motion of the upper ejecting cross bar 41 is achieved through the reciprocating motion of the sliding member 2, thereby completing the reciprocating ejecting work.

[0068] By the above arrangement, the ejecting function of the upper ejector rod 7 can be realized when the sliding member 2 just starts to move upward, and the working efficiency is high; at the same time, since the reset component 6 and the ejecting component 4 are located in the active space 22 inside the sliding member 2, the up and down movement of the sliding member 2 itself does not affect the relative position of the reset component 6 and the ejecting component 4, but the up and down reciprocating movement of the upper ejecting cross bar 41 can be realized through the setting of the adjustable limit component 5. Therefore, the position of the upper ejecting cam 53 can be adjusted by twisting the adjusting screw 52 up and down, so that the contact time of the second arc surface 20 of the upper ejecting cam 53 and the first roller 31 is different, and the first roller 31 can be made to contact the flat part first, or it can directly contact the cam surface, so that the ejecting time will be different. If the cam surface is contacted first, the ejecting stroke can be reduced, thereby realizing that the ejecting time and stroke can be adjusted, and the upper ejecting work can also be realized for the stamping processing of some special parts.

[0069] Embodiment 8:

[0070] See also Figure 1-8 As shown, this embodiment provides a working method of a top loading device, comprising:

[0071] Ejection step: the sliding member 2 moves upward from the bottom dead center, at which time the ejection assembly 4 is at the highest point, and the upper ejection movable cam 32 is driven to move upward by the support rod 21, so that the first roller 31 moves upward;

[0072] The first roller 31 moves upward and contacts the second arc surface 20 of the upper ejection cam 53, thereby forcing the upper ejection movable cam 32 to swing forward;

[0073] After the upper material ejecting movable cam 32 swings forward, the fourth arc surface 40 of the upper material ejecting movable cam 32 presses against the second roller 42, thereby pushing the second roller 42 to move downward;

[0074] After the second roller 42 moves downward, it drives the upper ejector bar 41 to move downward, thereby pushing the upper ejector rod 7 to move downward to realize the ejection action;

[0075] Reset step: After the sliding member 2 moves to the top dead center, it starts to move downward, and the upper ejecting movable cam 32 moves downward through the support rod 21, so that the first roller 31 moves downward accordingly;

[0076] The first roller 31 moves downward and contacts the first arc surface 10 of the upper ejection cam 53, thereby guiding the upper ejection movable cam 32 to swing backward;

[0077] After the upper material lifting movable cam 32 swings backward, the third arc surface 30 of the upper material lifting movable cam 32 is located above the second roller 42, so that the fourth arc surface 40 of the upper material lifting movable cam 32 is away from the second roller 42;

[0078] After the second roller 42 loses the external force that is holding it, the upper material lifting cross bar 41 moves upward to reset due to the action of the reset assembly 6; when the sliding member 2 moves to the bottom dead point, it starts to move upward.

[0079] The material pushing step and the resetting step are repeated, so that the upper material pushing horizontal bar 41 can move up and down reciprocatingly through the reciprocating motion of the sliding member 2, thereby completing the reciprocating material pushing work.

[0080] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A feeding device, characterized in that The invention comprises a device body, a sliding member, a transmission assembly, a material-lifting assembly and an adjustable limit assembly, wherein the sliding member is arranged in the device body and can move up and down in the device body; the upper end of the transmission assembly is movably connected to the sliding member, and the lower end of the transmission assembly is located above the material-lifting assembly; the adjustable limit assembly is detachably connected to the device body, and the adjustable limit assembly is arranged on one side of the transmission assembly; when the sliding member moves upward, it can drive the transmission assembly to contact the adjustable limit assembly, so that the transmission assembly swings, so that the lower end of the transmission assembly can push the material-lifting assembly to move downward, thereby realizing the material-lifting action; The upper ejection device also includes a reset component that can drive the ejection component to move upward when there is no external force, and the reset component is connected to the ejection component; when the sliding member moves downward, it can drive the transmission component to swing so that its lower end is away from the ejection component, so that the reset component can drive the ejection component to move upward to reset; The adjustable limit assembly is provided with a first concave arc surface and a second convex arc surface on one side facing the transmission assembly, the second arc surface is located above the first arc surface, the lower end of the transmission assembly is provided with a third concave arc surface and a fourth convex arc surface, the fourth arc surface is located on the lower end of the transmission assembly close to the adjustable limit assembly; When the transmission assembly moves to contact the second curved surface as the sliding member moves upward, the transmission assembly can be swung to the side away from the adjustable limit assembly, so that the fourth curved surface at the lower end of the transmission assembly can support the material lifting assembly, thereby pushing the material lifting assembly to move downward to achieve the material lifting action; when the transmission assembly moves to contact the first curved surface as the sliding member moves downward, the transmission assembly can be swung to the side toward the adjustable limit assembly, so that the material lifting assembly is located below the third curved surface, so that the fourth curved surface at the lower end of the transmission assembly is away from the material lifting assembly, so that the reset assembly can drive the material lifting assembly to move upward; The adjustable limit assembly includes a connecting top plate, an adjusting member and an upper ejection cam, wherein the connecting top plate is fixedly connected to the device body, the upper end of the adjusting member is connected to the connecting top plate, the lower end of the adjusting member is connected to the upper ejection cam, and the adjusting member can adjust the distance between the upper ejection cam and the connecting top plate, thereby adjusting the height of the upper ejection cam, and the first arc surface and the second arc surface are arranged on the side of the upper ejection cam facing the transmission assembly; The adjustable limit assembly also includes a first locking member for locking the adjusting member and a second locking member for locking the upper ejection cam. The first locking member is connected to the upper part of the adjusting member. When the height of the upper ejection cam is adjusted by the adjusting member, the upper ejection cam is detachably fixedly connected to the device body by the second locking member.

2. The top loading device according to claim 1, characterized in that: The transmission assembly includes a first roller and an upper lifting cam, the sliding member is provided with a support rod connecting the transmission assembly, the upper end of the upper lifting cam is movably connected to the support rod on the sliding member, the lower end of the upper lifting cam is located above the lifting assembly, and the third arc surface and the fourth arc surface are arranged at the lower end of the upper lifting cam, the first roller is connected to the upper lifting cam through a first pin shaft, and the side surface of the first roller is opposite to the side surface of the adjustable limit assembly where the first arc surface and the second arc surface are arranged; when the first roller moves to contact the second arc surface as the sliding member moves upward, it can drive the upper lifting cam to swing to the side away from the adjustable limit assembly; when the first roller moves to contact the first arc surface as the sliding member moves downward, it can drive the upper lifting cam to swing toward the side of the adjustable limit assembly.

3. The top loading device according to claim 2, characterized in that: The lifting material assembly comprises an upper lifting material cross bar and a second roller, the middle part of the sliding member is provided with an active space, the upper lifting material cross bar is arranged in the active space, and the two ends of the upper lifting material cross bar extend out of the left and right sides of the sliding member, and the two ends of the upper lifting material cross bar extending out of the sliding member are connected to the second roller, the sliding member is located at the left and right sides of the upper lifting material cross bar and is connected to the support rod, the support rods on the left and right sides of the sliding member are connected to the transmission assembly, the lower ends of the transmission assemblies on both sides of the sliding member are respectively located above the second rollers at the two ends of the upper lifting material cross bar, and the rear sides of the lifting material assemblies on the left and right sides of the sliding member are provided with the adjustable limit assembly. When the upper lifting material active cam swings to the front side, the fourth arc surface resists the second roller, thereby pushing the second roller to drive the upper lifting material cross bar to move downward to realize the lifting action; when the upper lifting material active cam swings to the rear side, the second roller is located below the third arc surface, so that the fourth arc surface is away from the second roller, so that the upper lifting material cross bar can move upward to reset due to the action of the reset assembly.

4. The top loading device according to claim 3, characterized in that: The lifting material assembly also includes a second pin shaft, and both ends of the upper lifting material cross bar extending outside the sliding member are provided with mounting grooves adapted to the second roller, and the second rollers at both ends of the upper lifting material cross bar are installed in the mounting grooves through the second pin shaft.

5. The top loading device according to claim 3, characterized in that: The cam is secured to the outside of the sliding member by a spring, and the cam is secured to the outside of the sliding member by a spring.

6. The top loading device according to claim 3, characterized in that: The device body is provided with an upper push rod for pushing materials at the bottom of the sliding member, and an elastic washer is provided at the lower part of the upper push rod. The upper end of the upper push rod extends through the sliding member to the activity space, and the upper end of the upper push rod is abutted against the bottom of the upper push rod.

7. A working method of the top loading device according to any one of claims 2 to 6, characterized in that: include: Ejection step: the sliding member moves upward from the bottom dead center, driving the transmission component to contact the adjustable limit component, so that the transmission component swings forward, so that the lower end of the transmission component can push the ejection component to move downward, thereby realizing the ejection action; Reset step: when the sliding part moves to the upper dead point, it starts to move downward, driving the transmission assembly to contact the adjustable limit assembly, causing the transmission assembly to swing backward, so that the lower end of the transmission assembly is away from the lifting assembly, so that the lifting assembly loses the external force that is holding it up, and then the lifting assembly is driven to move upward to reset due to the action of the reset assembly; when the sliding part moves to the lower dead point, it starts to move upward.

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