Automatic blanking reducing device

Abstract

The utility model discloses an automatic blanking reducing device, which relates to the field of bushing processing equipment, and comprises an oil cylinder, the oil cylinder comprises a cylinder barrel, a cylinder bottom, a piston, a gland and a cavity; a reducing device is arranged in the cylinder barrel; the reducing device is in power connection with the piston; an automatic discharging device is arranged at the bottom of the cylinder bottom; the automatic discharging device comprises an adjusting base, the adjusting base is arranged at the bottom of the cylinder bottom, a rotary discharging assembly is arranged on the adjusting base, the rotary discharging assembly extends into the cavity and is in power connection with a driving device, and the driving device is arranged on the adjusting base. According to the device, manual blanking and material taking are not needed, the functions of automatic and continuous blanking, hole shrinkage and blanking of the lining can be achieved, manpower and material resources are saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of bushing processing equipment, in particular to an automatic blanking and diameter reducing device. Background Art

[0002] Automobile bushings are usually made of materials such as rubber, plastic or metal. Their main function is to provide cushioning, shock absorption and noise absorption during vehicle driving. During the processing of rubber bushings, a diameter reduction process is required. After the rubber bushings are vulcanized and formed, they are subjected to a certain degree of radial compression by using equipment such as an automatic diameter reduction machine, so that compressive stress can be pre-existed between the rubber molecules. At present, the utility model patent of Chinese patent application No. 201520519672.3 discloses an adjustable diameter reduction structure for reducing the diameter of rubber or metal pipes. However, when using this diameter reduction device, it is necessary to manually place the product in the diameter reduction processing position, manually remove the reduced product after the diameter reduction is completed, and then place the second one for diameter reduction processing. This operation process is time-consuming, labor-intensive and inefficient. Therefore, how to realize automatic blanking and blanking of bushing diameter reduction processing has become a problem that needs to be solved urgently. Utility Model Content

[0003] The purpose of the utility model is to provide an automatic blanking and shrinking device to solve the problem mentioned in the background technology that the current bushing shrinking equipment cannot realize the automatic blanking and blanking function of the bushing and has low working efficiency.

[0004] The utility model adopts the following technical solutions:

[0005] The utility model discloses an automatic material unloading and reducing device, which comprises an oil cylinder, wherein the oil cylinder comprises a cylinder barrel, a pressure cover is provided on the top of the cylinder barrel, and a cylinder bottom is provided on the bottom of the cylinder barrel; a piston is provided in the cylinder barrel, an axially through cavity is provided inside the piston, a reducing device is provided in the cylinder barrel, and the reducing device is dynamically connected to the piston.

[0006] An automatic blanking device is provided at the bottom of the cylinder bottom, and the automatic blanking device includes a height-adjustable adjustment base, which is provided at the bottom of the cylinder bottom. A rotary blanking assembly is provided on the adjustment base, and the rotary blanking assembly extends into the cavity. The rotary blanking assembly is dynamically connected to a driving device, and the driving device is provided on the adjustment base.

[0007] Furthermore, the reducing device includes an inner sleeve of the cylinder mouth, which is connected to the inner wall of the cylinder, and the bottom surface of the inner sleeve of the cylinder mouth is provided with a radially sliding pressure head assembly, the inner side of the pressure head assembly encloses a hollow cylindrical product placement area, the outer side surface of the pressure head assembly is in the shape of an inverted cone, and the outer side of the pressure head assembly is provided with a reducing sleeve, the inner side surface of the reducing sleeve is slidably fitted with the outer side surface of the pressure head assembly, and the bottom end of the reducing sleeve is fixedly connected to the top surface of the piston.

[0008] Furthermore, a material guide mechanism is fixedly connected to the inner side of the cylinder port inner sleeve. The material guide mechanism includes a guide tube support plate fixedly connected to the inner side of the cylinder port inner sleeve. The guide tube support plate is provided with a photoelectric sensor and a guide tube. The guide tube is positioned correspondingly with the product placement area. Detection ray holes are provided on the side wall of the guide tube along the tube diameter. Light emitted by the photoelectric sensor passes through the detection ray holes.

[0009] Furthermore, an adjusting device is provided at the top of the oil cylinder, and the adjusting device includes a gear plate, which is fixedly connected to the top of the inner sleeve of the cylinder mouth, and the outer wall of the inner sleeve of the cylinder mouth is provided with a thread, and the outer wall of the inner sleeve of the cylinder mouth is rotatably connected with the cylinder thread, and the cylinder thread is provided on the inner wall of the cylinder.

[0010] The outer wall of the gear plate is provided with teeth, and the teeth of the gear plate are meshed with the diameter reduction adjustment gear. The diameter reduction adjustment gear is a gear shaft structure with teeth provided at the waist. The diameter reduction adjustment gear is movably provided in the side wall of the cylinder, and the upper end of the diameter reduction adjustment gear passes through the pressure cover, and the head of the diameter reduction adjustment gear is connected to the handle.

[0011] Furthermore, a lubrication assembly is provided below the gland, and the lubrication assembly includes a lubrication annular square tube, which is provided between the gland and the inner sleeve of the cylinder port, and is fixedly connected to the gland. A notch is provided on the lubrication annular square tube, and a plurality of oil discharge holes are evenly distributed on the bottom surface of the lubrication annular square tube;

[0012] An oil storage tank is provided below the lubricating annular square tube. The oil storage tank is an annular groove. The oil storage tank is provided on the top surface of the cylinder port inner sleeve. A plurality of oil holes are provided inside the cylinder port inner sleeve. The oil holes pass through the top and bottom surfaces of the cylinder port inner sleeve. The top ends of the oil holes are connected to the oil storage tank, and the bottom ends of the oil holes are connected to the pressure head assembly.

[0013] The notch is communicated with an oil filling hole, and the oil filling hole is arranged on the gland.

[0014] Furthermore, the adjustment base includes a support plate, a support column is provided on the support plate, and the support column is fixedly connected to the bottom of the cylinder bottom. A cylinder sliding rod is slidably connected to the support plate, and the lower end of the cylinder sliding rod is fixedly connected to the cylinder fixing plate.

[0015] A screw support seat is provided on the bottom side of the cylinder fixing plate, a rotatable screw is provided in the screw support seat, a handwheel is provided at the bottom end of the screw, and the top end of the screw is rotatably connected to the support vertical plate through a thread. The rotary blanking assembly is provided on one side of the cylinder fixing plate, and the driving device is provided on the bottom side of the cylinder fixing plate.

[0016] Furthermore, a material drop chute is provided below the product placement area, and the material drop chute is fixedly connected to the bottom of the piston. A reserved guide hole is provided at the bottom of the piston, and an anti-rotation rod is slidably connected to the reserved guide hole at the bottom of the piston, and the anti-rotation rod is fixedly connected to the support plate.

[0017] Furthermore, a scale is provided on the side wall of the cylinder fixing plate, and the scale cooperates with a pointer, and the pointer is provided on the side wall of the supporting vertical plate.

[0018] Furthermore, the driving device includes a slide cylinder and an oil pressure buffer, the fixed end of the slide cylinder is fixedly connected to the cylinder fixed plate, and the movable end of the slide cylinder is provided with a rack, which is meshed with a spur gear, and the spur gear is provided on the rotating blanking assembly.

[0019] There are two oil pressure buffers, which are respectively arranged on two limit plates, and the two limit plates are respectively arranged on two opposite side walls of the cylinder fixing plate. The two oil pressure buffers are press-fitted with the movable end of the slide cylinder.

[0020] Furthermore, the rotary blanking assembly includes a rotary shaft, which is rotatably connected to one side of the cylinder fixed plate, and the lower end of the rotary shaft is fixedly connected to the spur gear.

[0021] A connecting plate is provided at the upper end of the rotating shaft, and a top block is provided on the connecting plate. The rotating shaft, the connecting plate and the top block extend into the cavity, and the rotating shaft avoids the central axis position of the piston, and the top block is located below the product placement area.

[0022] Compared with the prior art, the beneficial technical effects of the present invention are:

[0023] The utility model is designed with an automatic unloading device, in which a top block in the automatic unloading device supports a first bushing, and a diameter reducing device contracts to reduce the diameter of a second bushing above the first bushing. At this time, the top block rotates away, and the first bushing on the top block automatically falls into the blanking chute. The top block rotates to the initial position again, and the diameter reducing device opens, and the second bushing after the diameter reduction falls on the top block. At the same time, the third bushing above the second bushing falls into the diameter reducing device and waits for the diameter reduction. The above process is repeated to automatically unload and reduce the diameters of multiple bushings. The utility model does not require manual unloading and material collection, and can realize the function of automatic continuous unloading and blanking of bushings, saving manpower and material resources and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the structure of the automatic material cutting and shrinking device of the utility model;

[0026] Figure 2 This is a side view of the automatic material cutting and reducing device of the utility model;

[0027] Figure 3 This is a cross-sectional view of the automatic material cutting and reducing device of the utility model;

[0028] Figure 4 This is a schematic structural diagram of the diameter reducing device in the automatic material unloading and diameter reducing device of the utility model;

[0029] Figure 5 This is a schematic structural diagram of the reducing sleeve and pressure head assembly in the automatic material cutting and reducing device of the utility model;

[0030] Figure 6 This is a schematic diagram of the bottom of the reducing sleeve and the pressure head assembly in the automatic material cutting and reducing device of the utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the reducing sleeve in the automatic material cutting and reducing device of the utility model;

[0032] Figure 8 This is a cross-sectional view of the reducing sleeve in the automatic material cutting and reducing device of the utility model;

[0033] Figure 9 This is a schematic diagram of the structure of the pressure head assembly in the automatic material cutting and reducing device of the utility model;

[0034] Figure 10 This is a schematic diagram of the pressure head combination effect in the automatic material unloading and shrinking device of the utility model;

[0035] Figure 11 This is a schematic diagram of the structure of a single pressure head in the automatic material cutting and shrinking device of the utility model;

[0036] Figure 12 This is a schematic diagram of the spring structure of the pressure head assembly in the automatic material cutting and reducing device of the utility model;

[0037] Figure 13 This is a schematic diagram of the structure of the connecting pad in the automatic blanking and reducing device of the utility model;

[0038] Figure 14 This is a schematic diagram of the structure of the inner sleeve of the cylinder mouth in the automatic material cutting and reducing device of the utility model;

[0039] Figure 15 This is a structural diagram of the material guiding mechanism in the automatic material unloading and diameter reducing device of the present utility model;

[0040] Figure 16 This is a schematic diagram of the structure of the adjusting device in the automatic material cutting and shrinking device of the utility model;

[0041] Figure 17 This is a cross-sectional view of the adjusting device in the automatic material cutting and reducing device of the utility model;

[0042] Figure 18 This is a schematic diagram of the diameter reduction adjustment gear structure in the automatic material unloading and diameter reduction device of the utility model;

[0043] Figure 19 This is a schematic diagram of the gear plate structure in the automatic material cutting and reducing device of the utility model;

[0044] Figure 20 This is a schematic diagram of the structure of the lubricating annular square tube in the automatic material cutting and reducing device of the utility model;

[0045] Figure 21 This is a schematic diagram of the bottom side structure of the lubricating annular square tube in the automatic material reduction device of the utility model;

[0046] Figure 22 This is a schematic diagram of the installation effect of the automatic unloading device in the automatic unloading and shrinking device of the utility model;

[0047] Figure 23 This is a structural diagram of the automatic unloading device in the automatic unloading and shrinking device of the utility model;

[0048] Figure 24 This is a schematic structural diagram of the bottom view of the automatic blanking device in the automatic blanking and diameter-reducing device of the utility model;

[0049] Figure 25 This is a schematic diagram of the blanking chute structure in the automatic blanking and shrinking device of the utility model.

[0050] Explanation of reference numerals: 1, oil cylinder; 1-1, cylinder barrel; 1-2, cylinder bottom; 1-3, piston; 1-3-1, anti-rotation rod; 1-4, gland; 1-5, cylinder barrel thread; 1-6, cavity; 2, reducing device; 2-1, reducing sleeve; 2-2, pressure head assembly; 2-2-1, pressure head; 2-2-2, pressure head connecting plate; 2-2-3, slide groove; 2-2-4, hanging block; 2-2-5, spring Hole; 2-2-6, spring; 2-2-7, protrusion; 2-3, connecting pad; 2-4, sleeve in cylinder port; 2-5, product placement area; 3, adjustment device; 3-1, handle; 3-2, reduction adjustment gear; 3-3, gear plate; 4, automatic unloading device; 4-1, adjustment base; 4-1-1, support plate; 4-1-2, support column; 4-1-3, ruler; 4-1-4, pointer ; 4-1-5, cylinder fixing plate; 4-1-6, cylinder sliding rod; 4-1-7, screw; 4-1-8, screw support seat; 4-1-9, handwheel; 4-2, drive unit; 4-2-1, slide cylinder; 4-2-2, rack; 4-2-3, hydraulic buffer; 4-2-4, limit plate; 4-2-5, spur gear; 4-3, rotary blanking assembly; 4-3-1, rotary axis; 4 -3-2, connecting plate; 4-3-3, top block; 5, bushing; 6, blanking chute; 7, material guiding mechanism; 7-1, guide tube support plate; 7-2, guide tube; 7-3, photoelectric sensor; 7-4, detection ray hole; 7-5, light; 8, lubrication assembly; 8-1, lubricating annular square tube; 8-2, notch; 8-3, oil unloading hole; 8-4, oil storage tank; 8-5, oil through hole; 8-6, oil filling hole. DETAILED DESCRIPTION

[0051] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0052] like Figures 1 to 3 As shown, this embodiment discloses an automatic material unloading and reducing device, comprising an oil cylinder 1, which includes a cylinder barrel 1-1. A gland 1-4 is fixedly connected to the top of the cylinder barrel 1-1 via a bolt assembly. A cylinder bottom 1-2 is provided at the bottom of the cylinder barrel 1-1. A piston 1-3 is provided within the cylinder barrel 1-1, and an axially extending cavity 1-6 is provided within the piston 1-3. A reducing device 2 is provided within the cylinder barrel 1-1, and the reducing device 2 is dynamically connected to the piston 1-3.

[0053] The bottom of the cylinder 1-2 is provided with an automatic unloading device 4 ，The automatic blanking device 4 includes a height-adjustable adjustment base 4-1, which is arranged at the bottom of the cylinder bottom 1-2. A rotary blanking component 4-3 is arranged on the adjustment base 4-1, and the rotary blanking component 4-3 extends into the cavity 1-6. The upper end of the rotary blanking component 4-3 corresponds to the product placement area 2-5 in the reducing device 2. The rotary blanking component 4-3 is power-connected to the driving device 4-2, and the driving device 4-2 is arranged on the adjustment base 4-1.

[0054] like Figure 3 、 Figure 4 、 Figure 13 and Figure 14 As shown, the reducing device 2 includes a cylinder port inner sleeve 2-4, which is fixedly connected to the inner wall of the cylinder 1-1, and a radially slidable pressure head assembly 2-2 is provided on the bottom surface of the cylinder port inner sleeve 2-4. The inner side of the pressure head assembly 2-2 encloses a hollow cylindrical product placement area 2-5, and the outer side surface of the pressure head assembly 2-2 is in the shape of an inverted cone. The outer side of the pressure head assembly 2-2 is provided with a reducing sleeve 2-1, and the inner side surface of the reducing sleeve 2-1 is slidably fitted with the outer side surface of the pressure head assembly 2-2, and the bottom end of the reducing sleeve 2-1 is fixedly connected to the top surface of the piston 1-3.

[0055] As a way to achieve a fixed connection between the reducing sleeve 2-1 and the piston 1-3, in this embodiment, the reducing sleeve 2-1 is fixedly connected to the connecting pad 2-3 through a bolt assembly, and the connecting pad 2-3 is fixedly connected to the top surface of the piston 1-3 through a bolt assembly.

[0056] like Figures 5 to 8 As shown, the outer surface of the ram assembly 2-2 is in the shape of an inverted frustum, and the inner surface of the reducing sleeve 2-1 is in the shape of a frustum that matches the outer surface of the ram assembly 2-2. The reducing sleeve 2-1 is mounted on the outer side of the ram assembly 2-2, and the inner surface of the reducing sleeve 2-1 slides with the outer surface of the ram assembly 2-2. The ram assembly 2-2 is an elastic structure that can slide in the radial direction. When the piston 1-3 moves upward, it drives the reducing sleeve 2-1 upward. At the same time, the inner surface of the reducing sleeve 2-1 slides upward along the outer surface of the ram assembly 2-2, thereby squeezing the ram assembly 2-2, causing the ram assembly 2-2 to shrink toward the center, achieving the reduction function.

[0057] like Figures 9 to 12 As shown, in this embodiment, the pressure head assembly 2-2 includes a pressure head connecting disk 2-2-2 and a plurality of pressure heads 2-2-1. The pressure head connecting disk 2-2-2 is fixedly connected to the bottom surface of the sleeve 2-4 in the cylinder mouth. The pressure head 2-2-1 is radially slidably connected to the pressure head connecting disk 2-2-2. The cylindrical cavity between the pressure heads 2-2-1 is the product placement area 2-5.

[0058] As a method for achieving radial sliding connection and cooperation between the pressure head 2-2-1 and the pressure head connecting disk 2-2-2, in this embodiment, the pressure head connecting disk 2-2-2 is a circular ring structure, and a plurality of radially arranged chutes 2-2-3 are provided on the pressure head connecting disk 2-2-2 in a circular shape. The top and bottom surfaces of a single pressure head 2-2-1 are both fan-shaped, and the fan-shaped radius of the top surface of the pressure head 2-2-1 is greater than the fan-shaped radius of the bottom surface of the pressure head 2-2-1. A hanging block 2-2-4 is provided on the top of the pressure head 2-2-1, and the hanging block 2-2-4 is clamped in the chutes 2-2-3, and the hanging block 2-2-4 and the chutes 2-2-3 are slidably engaged. The side wall of the pressure head 2-2-1 is provided with a through-hole 2-2-5, and an annular spring 2-2-6 is provided in the circular hole 2-2-5. The annular spring 2-2-6 holds all the rams 2-2-1 together in a circular ring, forming a truncated cone-shaped structure. The outer surface of this cone-shaped structure slides with the inner wall of the reducing sleeve 2-1. The side of the ram 2-2-1 facing the product placement area 2-5 is provided with a protrusion 2-2-7, which is used to squeeze and compress the bushing 5.

[0059] When the reducing sleeve 2-1 moves upward, its inner side slides upward along the outer side of the ram 2-2-1. Because the ram connection plate 2-2-2 is fixed to the cylinder port inner sleeve 2-4, the hanging block 2-2-4 slides along the chute 2-2-3 toward the center of the ram connection plate 2-2-2 under the action of the extrusion and the annular spring 2-2-6, causing the ram 2-2-1 to contract toward the center of the ram connection plate 2-2-2. During this contraction, the protrusion 2-2-7 squeezes and compresses the bushing 5 in the product placement area 2-5. When the reducing sleeve 2-1 moves downward, the annular spring 2-2-6 returns to its original position, causing the ram 2-2-1 to return to its original position.

[0060] like Figure 4 and Figure 15 As shown, a material guide mechanism 7 is fixedly connected to the inner side of the cylinder port sleeve 2-4. This guide mechanism 7 comprises a guide tube support plate 7-1, which is fixedly connected to the inner side of the cylinder port sleeve 2-4. A photoelectric sensor 7-3 and a guide tube 7-2 are mounted on the guide tube support plate 7-1. The photoelectric sensor 7-3 is connected to an external computer. The guide tube 7-2 corresponds to the product placement area 2-5. Detection ray holes 7-4 are provided on the sidewall of the guide tube 7-2 along the tube's diameter. Light 7-5 emitted by the photoelectric sensor 7-3 passes through the detection ray holes 7-4. A bushing 5 is placed within the guide tube 7-2. The computer detects the light 7-5 emitted by the photoelectric sensor 7-3, determines whether a bushing 5 is present within the guide tube 7-2, and counts the number of bushings 5. If the computer determines that no bushings 5 are present, it alerts the operator to either replenish the bushings or shut down the device. The photoelectric sensor 7-3 is conventional technology and will not be explained in detail here.

[0061] like Figure 3 、 Figure 4 and Figures 16 to 19 As shown, an adjustment device 3 is provided at the top of the oil cylinder 1. The adjustment device 3 includes a gear plate 3-3, which is fixedly connected to the top of the cylinder port inner sleeve 2-4 via a bolt assembly. The outer wall of the cylinder port inner sleeve 2-4 is provided with threads, which are threadedly connected to the cylinder thread 1-5 provided on the inner wall of the cylinder 1-1.

[0062] The outer wall of gear plate 3-3 is provided with teeth, which mesh with the reduction adjustment gear 3-2. Reduction adjustment gear 3-2 is a gear shaft structure with teeth at its waist. Reduction adjustment gear 3-2 is movably mounted within the side wall of cylinder 1-1. The upper end of reduction adjustment gear 3-2 passes through pressure cap 1-4, and the head of reduction adjustment gear 3-2 is connected to handle 3-1. When handle 3-1 is turned, reduction adjustment gear 3-2 begins to rotate, and the teeth of reduction adjustment gear 3-2 mesh with the teeth on the side wall of gear plate 3-3, driving gear plate 3-3 to rotate. Gear plate 3-3 then drives cylinder sleeve 2-4 to rotate. Driven by cylinder threads 1-5, cylinder sleeve 2-4 rotates upward or downward, thereby adjusting the vertical position of ram assembly 2-2. This, in turn, changes the maximum contact stroke between ram assembly 2-2 and reduction sleeve 2-1, thereby adjusting the reduction diameter.

[0063] like Figure 14 、 Figure 16 、 Figure 17 、 Figure 20 and Figure 21 As shown, a lubrication assembly 8 is provided below the gland 1-4. The lubrication assembly 8 includes a lubrication annular square tube 8-1. The lubrication annular square tube 8-1 is provided between the gland 1-4 and the cylinder port inner sleeve 2-4. The lubrication annular square tube 8-1 is fixedly connected to the gland 1-4. The lubrication annular square tube 8-1 is provided with a notch 8-2. The notch 8-2 communicates with an oil injection hole 8-6 provided on the gland 1-4. Lubricating oil is injected into the oil injection hole 8-6, and the lubricating oil flows into the lubrication annular square tube 8-1.

[0064] The bottom surface of the lubricating annular square tube 8-1 is evenly distributed with a number of oil discharge holes 8-3 in a circular shape. Below the lubricating annular square tube 8-1 is an oil reservoir 8-4, an annular groove located on the top surface of the cylinder port inner sleeve 2-4. Inside the cylinder port inner sleeve 2-4, a number of oil holes 8-5 are evenly distributed in a circular shape. The oil holes 8-5 extend through the top and bottom surfaces of the cylinder port inner sleeve 2-4. The top ends of the oil holes 8-5 communicate with the oil reservoir 8-4, and the bottom ends of the oil holes 8-5 communicate with the pressure head assembly 2-2. Lubricating oil is injected into the oil filling hole 8-6, filling the lubricating annular square tube 8-1 and flowing from the oil discharge holes 8-3 to the oil reservoir 8-4. It then flows from the oil holes 8-5 to the pressure head assembly 2-2, thereby lubricating the pressure head assembly 2-2.

[0065] like Figures 22 to 24 As shown, the adjustment base 4-1 includes a support plate 4-1-1, on which a support column 4-1-2 is mounted. The support column 4-1-2 is fixedly connected to the bottom of the cylinder bottom 1-2. A cylinder sliding rod 4-1-6 is slidably connected to the support plate 4-1-1, and the lower end of the cylinder sliding rod 4-1-6 is fixedly connected to the cylinder fixing plate 4-1-5. A screw support seat 4-1-8 is mounted on the bottom side of the cylinder fixing plate 4-1-5. A rotatable screw 4-1-7 is mounted within the screw support seat 4-1-8. The bottom end of the screw 4-1-7 is fixedly connected to a handwheel 4-1-9, and the top end of the screw 4-1-7 is threadedly connected to the support plate 4-1-1. A rotary blanking assembly 4-3 is mounted on one side of the cylinder fixing plate 4-1-5, and a drive device 4-2 is mounted on the bottom side of the cylinder fixing plate 4-1-5. When the hand wheel 4-1-9 is turned, the screw rod 4-1-7 is driven to rotate, thereby driving the cylinder fixing plate 4-1-5 to move closer to or away from the support vertical plate 4-1-1. The screw rod support seat 4-1-8 is a prior art and will not be described in detail here.

[0066] In this embodiment, a feeding chute 6 is provided below the product placement area 2-5 and is fixedly connected to the bottom of the piston 1-3. A pre-set guide hole is provided at the bottom of the piston 1-3. An anti-rotation rod 1-3-1 is slidably connected within this pre-set guide hole. This anti-rotation rod 1-3-1 is fixedly connected to the support plate 4-1-1. This rod prevents the piston 1-3 from rotating relative to the automatic feeding device 4, thereby fixing the feeding chute 6 in one direction.

[0067] The side wall of the cylinder fixing plate 4-1-5 is also provided with a scale 4-1-3, which cooperates with a pointer 4-1-4, which is provided on the side wall of the supporting vertical plate 4-1-1. The scale 4-1-3 and the pointer 4-1-4 are used in conjunction to control the movement distance of the cylinder fixing plate 4-1-5.

[0068] like Figure 24 As shown, the drive device 4-2 includes a slide cylinder 4-2-1 and a hydraulic buffer 4-2-3. The fixed end of the slide cylinder 4-2-1 is fixedly connected to the cylinder fixing plate 4-1-5. The movable end of the slide cylinder 4-2-1 is provided with a rack 4-2-2, which is meshed with a spur gear 4-2-5. The spur gear 4-2-5 is provided on the rotating blanking assembly 4-3.

[0069] In this embodiment, two hydraulic buffers 4-2-3 are provided, one each mounted on two limit plates 4-2-4, which are mounted on opposite side walls of the cylinder fixing plate 4-1-5. The two hydraulic buffers 4-2-3 press against the movable end of the slide cylinder 4-2-1. When the slide cylinder 4-2-1 is activated, the movable end of the slide cylinder 4-2-1 moves back and forth, and the two limit plates 4-2-4 are positioned at the maximum travel position of the movable end of the slide cylinder 4-2-1. The movable end of the slide cylinder 4-2-1 strikes the hydraulic buffers 4-2-3, providing a shock-absorbing effect. Both the slide cylinder 4-2-1 and the hydraulic buffers 4-2-3 are conventional and will not be described in detail here.

[0070] like Figure 23 As shown, the rotary blanking assembly 4-3 includes a rotary shaft 4-3-1, which is rotatably connected to one side of the cylinder fixed plate 4-1-5 and slidingly connected to the side wall of the support vertical plate 4-1-1. The lower end of the rotary shaft 4-3-1 is fixedly connected to the spur gear 4-2-5. The upper end of the rotary shaft 4-3-1 is provided with a connecting plate 4-3-2, and the connecting plate 4-3-2 is provided with a top block 4-3-3. The rotary shaft 4-3-1, connecting plate 4-3-2, and top block 4-3-3 extend into the cavity 1-6. The rotary shaft 4-3-1 is positioned away from the central axis of the piston 1-3, and the top block 4-3-3 is located below the product placement area 2-5.

[0071] When the slide cylinder 4-2-1 is started, the movable end of the slide cylinder 4-2-1 drives the rack 4-2-2 to move back and forth, and the rack 4-2-2 drives the spur gear 4-2-5 to rotate, which in turn can rotate the top block 4-3-3 and rotate the top block 4-3-3 to the bottom of the product placement area 2-5, thereby supporting the bushing 5; when the top block 4-3-3 rotates in the opposite direction, it will move away from the bottom of the product placement area 2-5, thereby releasing the bushing 5.

[0072] like Figure 25 FIG. 1 is a schematic structural diagram of a blanking chute 6 , which is used to uniformly collect bushings that have completed diameter reduction.

[0073] like Figures 1 to 25 As shown, the working principle of the utility model is as follows:

[0074] First, place the bushings 5 one by one into the guide tube 7-2. At this time, the piston 1-3 is in the initial position and the pressure head assembly 2-2 is in an uncompressed state. Since the diameters of the guide tube 7-2 and the product placement area 2-5 are larger than the outer diameters of the bushings 5, the bushings 5 will be stacked in the guide tube 7-2 and the product placement area 2-5 in sequence. The first bushing 5 will fall on the top block 4-3-3. Turn the handwheel 4-1-9, the screw rod 4-1-7 rotates, and then drives the cylinder fixing plate 4-1-5 to approach or move away from the supporting vertical plate 4-1-1, thereby driving the top block 4-3-3 on the rotating shaft 4-3-1 to move upward or downward. With the help of the up and down movement of the top block 4-3-3, the second bushing 5 is adjusted to the position where the diameter needs to be reduced.

[0075] Then turn the handle 3-1, the reduction adjustment gear 3-2 starts to rotate, and the teeth of the reduction adjustment gear 3-2 mesh with the teeth of the side wall of the gear plate 3-3, driving the gear plate 3-3 to rotate, and the gear plate 3-3 drives the sleeve 2-4 in the cylinder port to rotate, and the sleeve 2-4 in the cylinder port will rotate upward or downward under the action of the cylinder thread 1-5, thereby adjusting the vertical position of the pressure head assembly 2-2, and thus changing the maximum stroke of the contact between the adjustment pressure head assembly 2-2 and the reduction sleeve 2-1, thereby adjusting the size of the reduction diameter.

[0076] After the above operations are completed, piston 1-3 is activated, driving the reducing sleeve 2-1 upward. The inner surface of the reducing sleeve 2-1 slides upward along the outer surface of the ram 2-2-1. Under the action of squeezing and the action of the annular spring 2-2-6, the hanging block 2-2-4 slides on the slide groove 2-2-3 toward the center of the ram connecting plate 2-2-2, driving the ram 2-2-1 to retract toward the center of the ram connecting plate 2-2-2. During this retraction process, the protrusion 2-2-7 squeezes and compresses the second bushing 5 in the product placement area 2-5. Once the reduction is complete, piston 1-3 moves downward, the reducing sleeve 2-1 moves downward, and the annular spring 2-2-6 returns to its original position, driving the ram 2-2-1 to return to its original position.

[0077] During the shrinking and extrusion process, the slide cylinder 4-2-1 is activated, and the movable end of the slide cylinder 4-2-1 drives the rack 4-2-2 to move. The rack 4-2-2 drives the spur gear 4-2-5 to rotate, which in turn rotates the top block 4-3-3, moving it away from under the product placement area 2-5. During the rotation, the first bushing 5 on the top block 4-3-3 falls into the blanking chute 6, where it is recovered and placed in the guide tube 7-2 to await shrinking. At this time, the second bushing 5 is in the process of being squeezed and shrunk, so it will not fall.

[0078] After the first bushing 5 drops, slide cylinder 4-2-1 continues to operate, returning ejector block 4-3-3 to below product placement area 2-5. The second bushing 5 is reduced in diameter. Piston 1-3 moves downward, reducing sleeve 2-1 moves downward, and annular spring 2-2-6 resets, driving ram 2-2-1 to reset. The second, reduced bushing 5 automatically drops onto ejector block 4-3-3. Simultaneously, the third bushing 5 follows suit and drops into product placement area 2-5, awaiting reduction. Piston 1-3 moves upward again, driving reducing sleeve 2-1 upward. Ram 2-2-1 contracts and squeezes the third bushing 5. At this point, ejector block 4-3-3 rotates away, allowing the second bushing 5 to fall into chute 6. Ejector block 4-3-3 rotates again and returns to below product placement area 2-5, awaiting the third bushing 5. This cycle repeats, achieving automatic unloading and blanking of bushings 5.

[0079] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. An automatic material feeding and reducing device, comprising an oil cylinder (1), the oil cylinder (1) comprising a cylinder barrel (1-1), a pressure cover (1-4) being provided at the top of the cylinder barrel (1-1), and a cylinder bottom (1-2) being provided at the bottom of the cylinder barrel (1-1); a piston (1-3) being provided in the cylinder barrel (1-1), an axially through cavity (1-6) being provided in the interior of the piston (1-3), a reducing device (2) being provided in the cylinder barrel (1-1), and the reducing device (2) being dynamically connected to the piston (1-3); and characterized in that: The bottom of the cylinder bottom (1-2) is provided with an automatic unloading device (4) ， The automatic blanking device (4) comprises a height-adjustable adjustment base (4-1), the adjustment base (4-1) being arranged at the bottom of the cylinder bottom (1-2), a rotary blanking assembly (4-3) being arranged on the adjustment base (4-1), the rotary blanking assembly (4-3) extending into the cavity (1-6), the rotary blanking assembly (4-3) being in power connection with a driving device (4-2), and the driving device (4-2) being arranged on the adjustment base (4-1).

2. The automatic blanking and shrinking device according to claim 1, characterized in that: The reducing device (2) comprises a cylinder port inner sleeve (2-4), the cylinder port inner sleeve (2-4) is connected to the inner wall of the cylinder (1-1), the bottom surface of the cylinder port inner sleeve (2-4) is provided with a radially slidable pressure head assembly (2-2), the inner side of the pressure head assembly (2-2) encloses a hollow cylindrical product placement area (2-5), the outer side surface of the pressure head assembly (2-2) is in the shape of an inverted frustum, the outer side of the pressure head assembly (2-2) is sleeved with a reducing sleeve (2-1), the inner side surface of the reducing sleeve (2-1) is slidably sleeved with the outer side surface of the pressure head assembly (2-2), and the bottom end of the reducing sleeve (2-1) is fixedly connected to the top surface of the piston (1-3).

3. The automatic material cutting and reducing device according to claim 2, characterized in that: A material guide mechanism (7) is fixedly connected to the inner side of the cylinder port inner sleeve (2-4), and the material guide mechanism (7) comprises a guide tube support plate (7-1). The guide tube support plate (7-1) is fixedly connected to the inner side of the cylinder port inner sleeve (2-4). A photoelectric sensor (7-3) and a guide tube (7-2) are provided on the guide tube support plate (7-1). The guide tube (7-2) corresponds to the position of the product placement area (2-5). A detection ray hole (7-4) is provided on the side wall of the guide tube (7-2) along the tube diameter direction, and the light (7-5) emitted by the photoelectric sensor (7-3) passes through the detection ray hole (7-4).

4. The automatic material cutting and reducing device according to claim 2, characterized in that: An adjusting device (3) is provided at the top of the oil cylinder (1), and the adjusting device (3) comprises a gear plate (3-3), the gear plate (3-3) being fixedly connected to the top of the cylinder port inner sleeve (2-4), the outer side wall of the cylinder port inner sleeve (2-4) being provided with a thread, the outer side wall of the cylinder port inner sleeve (2-4) being threadably connected to a cylinder thread (1-5), and the cylinder thread (1-5) being provided on the inner side wall of the cylinder (1-1); The outer wall of the gear plate (3-3) is provided with teeth, and the teeth of the gear plate (3-3) are meshed and connected with the diameter reduction adjustment gear (3-2). The diameter reduction adjustment gear (3-2) is a gear shaft structure with teeth provided at the waist. The diameter reduction adjustment gear (3-2) is movably provided in the side wall of the cylinder (1-1), and the upper end of the diameter reduction adjustment gear (3-2) passes through the pressure cover (1-4) and is connected to the handle (3-1).

5. The automatic material cutting and reducing device according to claim 2, characterized in that: A lubrication assembly (8) is provided below the gland (1-4), the lubrication assembly (8) comprising a lubrication annular square tube (8-1), the lubrication annular square tube (8-1) being provided between the gland (1-4) and the cylinder port inner sleeve (2-4), the lubrication annular square tube (8-1) being fixedly connected to the gland (1-4), the lubrication annular square tube (8-1) being provided with a notch (8-2), and a plurality of oil discharge holes (8-3) being evenly distributed on the bottom surface of the lubrication annular square tube (8-1); An oil storage tank (8-4) is provided below the lubricating annular square tube (8-1), the oil storage tank (8-4) being an annular groove, the oil storage tank (8-4) being provided on the top surface of the cylinder port inner sleeve (2-4), a plurality of oil through holes (8-5) being provided inside the cylinder port inner sleeve (2-4), the oil through holes (8-5) passing through the top and bottom surfaces of the cylinder port inner sleeve (2-4), the top ends of the oil through holes (8-5) being in communication with the oil storage tank (8-4), and the bottom ends of the oil through holes (8-5) being in communication with the pressure head assembly (2-2); The notch (8-2) is communicated with the oil filling hole (8-6), and the oil filling hole (8-6) is provided on the pressure cover (1-4).

6. The automatic blanking and reducing device according to claim 2, characterized in that: The adjustment base (4-1) comprises a support plate (4-1-1), a support column (4-1-2) is provided on the support plate (4-1-1), and the support column (4-1-2) is fixedly connected to the bottom of the cylinder bottom (1-2); A cylinder sliding rod (4-1-6) is slidably connected to the supporting vertical plate (4-1-1), and the lower end of the cylinder sliding rod (4-1-6) is fixedly connected to a cylinder fixing plate (4-1-5); A screw rod support seat (4-1-8) is provided on the bottom side of the cylinder fixing plate (4-1-5), a rotatable screw rod (4-1-7) is provided in the screw rod support seat (4-1-8), a hand wheel (4-1-9) is provided at the bottom end of the screw rod (4-1-7), and the top end of the screw rod (4-1-7) is rotatably connected to the support vertical plate (4-1-1) through a thread; The rotary blanking assembly (4-3) is provided on one side of the cylinder fixing plate (4-1-5), and the driving device (4-2) is provided on the bottom side of the cylinder fixing plate (4-1-5).

7. The automatic material cutting and reducing device according to claim 6, characterized in that: A material drop chute (6) is provided below the product placement area (2-5), and the material drop chute (6) is fixedly connected to the bottom of the piston (1-3); A reserved guide slide hole is provided at the bottom of the piston (1-3), an anti-rotation rod (1-3-1) is slidably connected in the reserved guide slide hole at the bottom of the piston (1-3), and the anti-rotation rod (1-3-1) is fixedly connected to the supporting vertical plate (4-1-1).

8. The automatic material cutting and reducing device according to claim 6, characterized in that: A scale (4-1-3) is provided on the side wall of the cylinder fixing plate (4-1-5), and the scale (4-1-3) cooperates with a pointer (4-1-4), and the pointer (4-1-4) is provided on the side wall of the supporting vertical plate (4-1-1).

9. The automatic material cutting and reducing device according to claim 6, characterized in that: The driving device (4-2) includes a slide cylinder (4-2-1) and an oil pressure buffer (4-2-3), the fixed end of the slide cylinder (4-2-1) is fixedly connected to the cylinder fixing plate (4-1-5), the movable end of the slide cylinder (4-2-1) is provided with a rack (4-2-2), the rack (4-2-2) is meshed and connected with a spur gear (4-2-5), and the spur gear (4-2-5) is provided on the rotary blanking assembly (4-3); Two oil pressure buffers (4-2-3) are provided. The oil pressure buffers (4-2-3) are respectively provided on two limit plates (4-2-4). The two limit plates (4-2-4) are respectively provided on two opposite side walls of the cylinder fixing plate (4-1-5). The two oil pressure buffers (4-2-3) are press-fitted with the movable end of the slide cylinder (4-2-1).

10. The automatic material cutting and reducing device according to claim 9, characterized in that: The rotary blanking assembly (4-3) includes a rotary shaft (4-3-1) ， The rotating shaft (4-3-1) is rotatably connected to one side of the cylinder fixing plate (4-1-5), and the lower end of the rotating shaft (4-3-1) is fixedly connected to the spur gear (4-2-5); A connecting plate (4-3-2) is provided at the upper end of the rotating shaft (4-3-1), and a top block (4-3-3) is provided on the connecting plate (4-3-2). The rotating shaft (4-3-1), the connecting plate (4-3-2) and the top block (4-3-3) extend into the cavity (1-6), and the rotating shaft (4-3-1) avoids the central axis position of the piston (1-3). The top block (4-3-3) is located below the product placement area (2-5).

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