Automatic feeding device for steel ball cold header

Abstract

The utility model discloses an automatic feeding device of steel ball cold header is used for conveying bar material to steel ball cold header and carries out oiling treatment to bar material outer surface, include: bed, be equipped with the open top oil collecting groove of gathering of the bed, the inner wall of this oil collecting groove is provided with the installation ring, spray device, be located the oil collecting groove top and install on the bed. The automatic feeding device of steel ball cold header, through horizontal conveying mechanism drive movable frame and folding arm drive conveying roller along the vertical direction of bed slide and carry out the adjustment to clamping distance, realized the automatic conveying to different size bar material, through setting up a plurality of telescopic oil scraping piece in smearing cylinder, reach adaptive, sustainablely scrape and smearing evenly the oil material that sprays on the bar material surface, through setting up the further adjustment of telescopic oil scraping piece position's rotating cylinder, has guaranteed the stability when smearing cylinder uses.

Description

Technical Field

[0001] This utility model relates to the technical field of steel ball processing equipment, specifically to an automatic feeding device for a steel ball cold heading machine. Background Technology

[0002] A cold heading machine for steel balls is a specialized piece of equipment used for the mass production of steel balls. It uses a cold heading process to upset metal billets at room temperature to produce steel balls.

[0003] Before forming the steel balls using a cold heading machine, the bar stock needs to be cut into cylinders of uniform length. To reduce the friction between the bar stock and the cutting mechanism, and also to reduce the friction between the bar stock and the die during subsequent processing, thus preventing the formed steel balls from sticking to the die, the bar stock needs to be coated with oil during the cutting and feeding process.

[0004] In the prior art, for example, Chinese Utility Model Patent (Application No. 202320874524.8) discloses an automatic feeding device for a cold heading machine for steel balls, including a limiting frame and multiple main support legs. An oil receiving tray is fixedly connected to the top of each of the main support legs. A set of lower limiting bearings is fixedly connected to both sides of the oil receiving tray near its center. Lower limiting rollers are fixedly connected to the inner center of the lower limiting bearings on both sides. An oiling roller is rotatably connected to the top of the lower limiting rollers on both sides. Upper limiting rollers are located at the upper center of both sides of the oiling roller, and upper limiting bearings are fixedly connected to both ends of the upper limiting rollers on both sides. In use, by setting up an oiling roller and an oiling sheet, and setting a driven gear at the front end of the oiling roller, a motor drives the driving gear to rotate, which in turn drives the oiling roller to rotate, causing the oiling sheet inside the oiling roller to rotate accordingly. This allows the oil to be evenly applied to the bar stock, improving the stability of the application and avoiding oil waste.

[0005] The limiting rollers and oiling sheets in the aforementioned automatic feeding device are fixed in position. However, since steel balls of different sizes require cutting and hammering from bars of different diameters during manufacturing, the fixed placement of the limiting rollers and oiling sheets hinders the transportation and oiling of bars of different sizes, thus causing inconvenience in the preparation of steel balls of different sizes. Furthermore, the oiling sheet is a single, sheet-like structure; as its end continuously contacts the surface of the bar, it inevitably wears down, requiring frequent replacement during use, making continuous oiling of the bar difficult. Utility Model Content

[0006] To address the aforementioned issues, an automatic feeding device for a cold heading machine for steel balls is provided. This device uses a transverse conveying mechanism to drive a moving frame and a folding arm, which in turn drive the conveying rollers to slide along the vertical direction of the machine base to adjust the clamping distance, thus achieving automatic feeding of bars of different sizes. By installing multiple telescopic scrapers inside the coating cylinder, the device adaptively and continuously scrapes and evenly coats the oil sprayed onto the bar surface. Furthermore, a rotating cylinder is provided to further adjust the position of the telescopic scrapers, ensuring the stability of the coating cylinder during use.

[0007] To address the problems of existing technologies, this utility model provides an automatic feeding device for a cold heading machine for steel balls, used to feed bar stock into the cold heading machine and apply oil to the outer surface of the bar stock, comprising: The machine base is provided with an open-top oil collection trough, and an installation ring is provided on the inner wall of the oil collection trough; A spraying device is located on top of the oil collection tank and mounted on a machine base. The spraying device is connected to the oil collection tank through an oil supply pipe. The conveyor roller is triangular in shape and slides along the vertical direction of the machine base. Folding arms are provided on both sides of the conveyor roller. A movable frame for lateral traction and folding is provided at the folding arm. The movable frame is wrapped around the upper side of the machine base and can move horizontally along the outer surface of the machine base. An applicator is located at the oil collection tank and is rotatably mounted on the upper side of the oil collection tank via an installation ring. The applicator is equipped with several telescopic oil scrapers, which are arranged in a ring array inside the applicator with the central axis of the applicator as the center. Each telescopic scraper blade has an arc-shaped guide surface on the side closest to the conveyor roller to facilitate the entry of bar stock.

[0008] Preferably, the transverse horizontal cross-section of the conveying roller is an I-shaped structure with C-shaped concave surfaces on both sides, and the ends of the conveying rollers located on the same transverse horizontal plane at the machine base are mounted on the same connecting plate.

[0009] Preferably, the folding arm has a rotating shaft in the middle, which extends horizontally to pass through the moving frame. The two ends of the folding arm are rotatably connected to the middle of the connecting plate and the end of the conveying roller above the machine base, respectively. A transverse conveying mechanism is provided above the moving frame.

[0010] Preferably, the applicator has an inner cylinder, the telescopic scraper is located in the inner cylinder, and cover plates are fixedly installed at both ends of the applicator. The cover plates have insertion blocks on the side facing the applicator, and insertion slots that cooperate with the insertion blocks are opened at both ends of the inner cylinder.

[0011] Preferably, an annular channel is formed between the applicator and the inner cylinder, and a rotating cylinder is rotatably arranged in the annular channel. The end of the telescopic scraper extends outward from the inner cylinder until it penetrates the inner cylinder.

[0012] Preferably, an adjusting plate is provided between the inner wall of the rotating cylinder and the telescopic oil scraper, and a hinge block is provided at both ends of the adjusting plate. The two ends of the adjusting plate are respectively hinged to the rotating cylinder and the telescopic oil scraper through the hinge block.

[0013] Preferably, the applicator has a slot and several positioning slots, the outer wall of the rotating cylinder has a push plate that passes through the slot, and the push plate is provided with a limiting bolt that cooperates with the positioning slot.

[0014] Preferably, a transmission gear is provided at the spraying device, and a driven gear that cooperates with the transmission gear is connected at the cover plate.

[0015] Preferably, a push cylinder is installed at the base, and a support plate for supporting the bottom of the conveyor roller is installed on the top of the push cylinder. A steel ball is embedded in the top of the support plate and contacts the outer wall of the conveyor roller.

[0016] The advantages of this utility model compared to the prior art are: 1. The transverse conveying mechanism drives the moving frame and folding arm to slide the conveying rollers along the vertical direction of the machine base, thereby adjusting the clamping distance between the conveying rollers, thus realizing the automatic conveying of bars of different sizes, which facilitates the preparation of steel balls of different sizes in the cold heading machine.

[0017] 2. Multiple telescopic scraper blades are installed inside the coating tube to adaptively and continuously scrape and spread the oil sprayed on the surface of the bar evenly, while removing excess oil from the surface of the bar, resulting in better coating effect.

[0018] 3. By setting a rotating cylinder at the telescopic scraper blade to further adjust its position, the excessive compression of the telescopic scraper blade by large-sized bar material can be effectively avoided, which would affect the rotation of the coating cylinder and the oiling process, thus ensuring the stability of the coating cylinder during use. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an automatic feeding device for a steel ball cold heading machine.

[0020] Figure 2 This is a schematic diagram of the main structure of an automatic feeding device for a steel ball cold heading machine.

[0021] Figure 3 This is a three-dimensional structural diagram of the base of an automatic feeding device for a steel ball cold heading machine.

[0022] Figure 4 This is a schematic diagram of the conveyor roller and its outer adjustment structure of the automatic feeding device of a steel ball cold heading machine.

[0023] Figure 5 This is a three-dimensional structural diagram of the coating cylinder of an automatic feeding device for a steel ball cold heading machine.

[0024] Figure 6 This is a schematic diagram showing the internal structure of the coating cylinder of an automatic feeding device for a steel ball cold heading machine.

[0025] Figure 7 This is a schematic diagram of the three-dimensional cross-sectional structure of the coating cylinder of an automatic feeding device for a steel ball cold heading machine.

[0026] Figure 8 This is a schematic diagram of the internal component distribution structure of the coating cylinder of an automatic feeding device for a steel ball cold heading machine.

[0027] The following are the labels in the diagram: 1. Base; 1a. Mounting ring; 2. Spraying device; 3. Conveyor roller; 3a. Folding arm; 3b. Moving frame; 4. Coating cylinder; 4a. Telescopic scraper; 4b. Inner cylinder; 4c. Cover plate; 4d. Rotating cylinder; 4d1. Adjusting plate; 4d2. Pushing plate; 5. Pushing cylinder; 5a. Support plate. Detailed Implementation

[0028] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0029] See Figures 1-3 As shown, an automatic feeding device for a steel ball cold heading machine includes: The base 1 is provided with an open-top oil collection groove, and an installation ring 1a is provided on the inner wall of the oil collection groove; The spraying device 2 is located at the top of the oil collection tank and is mounted on the machine base 1. The spraying device 2 is connected to the oil collection tank through an oil supply pipe.

[0030] It should be noted that during the process of conveying the bar stock, the spraying device 2 will spray oil onto the outside of the bar stock. Excess oil will fall into the oil collection tank for collection. At this time, the spraying device 2 will discharge the oil from the oil collection tank through the oil pipeline for circulating spraying.

[0031] See Figures 1-4As shown, the conveying roller 3 is triangular in shape and is slidably arranged at the base 1 along the vertical direction of the base 1. Folding arms 3a are provided on both sides of the conveying roller 3. A movable frame 3b is provided at the folding arm 3a to laterally traction and fold it. The movable frame 3b is wrapped around the upper side of the base 1 and can move horizontally along the outer surface of the base 1.

[0032] It should be noted that, depending on the size of the bar stock, the folding arm 3a can be pulled to fold by the horizontal movement of the moving frame 3b along the outer surface of the machine base 1. During the folding process, the folding arm 3a drives the conveying roller 3 to slide along the vertical direction of the machine base 1, thereby adjusting the conveying distance between the conveying rollers 3, so that the conveying rollers 3 can convey bar stock of different sizes.

[0033] At the same time, this method is used to adjust the distance between the conveying rollers 3 so that the center position of bars of different sizes can be kept consistent, which facilitates the subsequent scraping and oiling work of the coating cylinder 4 on the bars.

[0034] See Figure 1 , Figure 5 and Figure 8 As shown, the applicator 4 is located at the oil collection tank and is rotatably mounted on the upper side of the oil collection tank via the mounting ring 1a. The applicator 4 is provided with several telescopic oil scrapers 4a, which are arranged in a ring array inside the applicator 4 with the central axis of the applicator 4 as the center.

[0035] It should be noted that the use of telescopic scraper 4a makes it convenient to apply oil to the surface of bars of different sizes. At the same time, the telescopic scraper 4a can avoid damage from hard collision between its end and the surface of the bar, thus extending the service life of the scraper and improving the flexibility of the scraping and oiling operation.

[0036] Each telescopic scraper blade 4a has an arc-shaped guide surface on the side near the conveyor roller 3 to facilitate the entry of the bar stock. See Figure 4 As shown, the transverse horizontal cross-section of the conveying roller 3 is an I-shaped structure with C-shaped concave surfaces on both sides. The ends of the conveying roller 3 located on the same transverse horizontal plane at the base 1 are mounted on the same connecting plate.

[0037] It should be noted that the I-shaped arrangement of the conveying roller 3 and the C-shaped arc concave surface on its outer side can limit the bar stock to the concave part in the middle of the conveying roller 3, so as to prevent the bar stock from shaking and deviating during the conveying process.

[0038] See Figure 1 and Figure 4As shown, the folding arm 3a has a rotating shaft in the middle, which extends horizontally to pass through the moving frame 3b. The two ends of the folding arm 3a are rotatably connected to the middle of the connecting plate and the end of the conveying roller 3 above the base 1, respectively. A transverse conveying mechanism is provided above the moving frame 3b.

[0039] It should be noted that the transverse conveying mechanism is a linear guide rail. During operation, the linear guide rail drives the sliding seat and the movable frame 3b connected to the sliding seat to move, which in turn drives the folding arm 3a to fold.

[0040] See Figure 7 and Figure 8 As shown, the coating cylinder 4 is provided with an inner cylinder 4b, and the telescopic scraper 4a is provided at the inner cylinder 4b. Cover plates 4c are fixedly installed at both ends of the coating cylinder 4. The cover plate 4c is provided with a plug-in block on the side facing the coating cylinder 4. Both ends of the inner cylinder 4b are provided with plug-in grooves that cooperate with the plug-in blocks.

[0041] It should be noted that the inner cylinder 4b enhances the protection of the telescopic oil scraper 4a. When the telescopic oil scraper 4a is excessively compressed, it may break due to friction with the bar stock surface. In this case, the inner cylinder 4b provides support and protection, reducing the wear and tear on the telescopic oil scraper 4a.

[0042] See Figures 5-8 As shown, an annular channel is formed between the applicator 4 and the inner cylinder 4b. A rotating cylinder 4d is rotatably arranged inside the annular channel. The end of the telescopic scraper 4a extends outward from the inner cylinder 4b until it penetrates the inner cylinder 4b.

[0043] An adjusting plate 4d1 is provided between the inner wall of the rotating cylinder 4d and the telescopic oil scraper 4a. Both ends of the adjusting plate 4d1 are provided with hinge blocks, and the two ends of the adjusting plate 4d1 are respectively hinged to the rotating cylinder 4d and the telescopic oil scraper 4a through the hinge blocks.

[0044] It should be noted that, in order to avoid excessive compression of the telescopic scraper blade 4a, rotating the rotating cylinder 4d will allow the adjusting plate 4d1 to pull the telescopic scraper blade 4a along the groove inside the inner cylinder 4b, releasing some of the elasticity inside the telescopic scraper blade 4a, ensuring the adaptive elasticity of the telescopic scraper blade 4a during use, while reducing the extrusion pressure between the outer surface of the bar and the bar, reducing the friction between the end of the telescopic scraper blade 4a and the surface of the bar, resulting in better oiling effect.

[0045] See Figure 5 and Figure 8As shown, the coating cylinder 4 has a slot and several positioning slots. The outer wall of the rotating cylinder 4d is provided with a push plate 4d2 that passes through the slot. The push plate 4d2 is provided with a limiting bolt that works in conjunction with the positioning slot.

[0046] It should be noted that the push plate 4d2 is a component used to push the rotating cylinder 4d to rotate. After the rotating cylinder 4d has rotated, the position of the rotating cylinder 4d can be locked by the cooperation of the limit bolt and the positioning groove.

[0047] See Figure 2 and Figure 5 As shown, a transmission gear is provided at the spraying device 2, and a driven gear that works in conjunction with the transmission gear is connected at the cover plate 4c.

[0048] It should be noted that the spraying device 2 is equipped with a drive device that drives the transmission gear to rotate. During the spraying process, the spraying device 2 simultaneously drives the transmission gear to rotate and mesh with the driven gear through the drive device, which in turn drives the coating cylinder 4, which is equipped with the driven gear, and the telescopic scraper 4a inside the coating cylinder 4 to rotate and scrape the oil on the surface of the bar.

[0049] See Figure 1 and Figure 2 As shown, a push cylinder 5 is installed at the base 1. A support plate 5a is installed on the top of the push cylinder 5 to support the bottom of the conveyor roller 3. A steel ball is embedded in the top of the support plate 5a and contacts the outer wall of the conveyor roller 3.

[0050] It should be noted that, due to the large weight of the bar stock, the rotating conveyor roller 3 needs to be supported. After the position of the conveyor roller 3 is adjusted, the push cylinder 5 will push the steel ball at the support plate 5a to re-engage with the outer wall of the conveyor roller 3 for support.

[0051] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. An automatic feeding device for a cold heading machine for steel balls, used to feed bar stock into the cold heading machine and apply oil to the outer surface of the bar stock, characterized in that, include: The base (1) is provided with an open-top oil collection groove, and an installation ring (1a) is provided on the inner wall of the oil collection groove. The spraying device (2) is located at the top of the oil collection tank and installed on the machine base (1). The spraying device (2) is connected to the oil collection tank through an oil pipeline. The conveying roller (3) is triangular in shape and is slidably arranged at the base (1) along the vertical direction of the base (1). Folding arms (3a) are provided on both sides of the conveying roller (3). A moving frame (3b) is provided at the folding arm (3a) for lateral traction and folding. The moving frame (3b) is wrapped around the upper side of the base (1) and can move horizontally along the outer surface of the base (1). The applicator (4) is located at the oil collection tank and is rotatably mounted on the upper side of the oil collection tank by the mounting ring (1a). The applicator (4) is provided with several telescopic oil scrapers (4a), which are arranged in a ring array inside the applicator (4) with the central axis of the applicator (4) as the center. Each telescopic scraper (4a) has an arc-shaped guide surface on the side near the conveyor roller (3) to facilitate the entry of the bar stock.

2. The automatic feeding device for a steel ball cold heading machine according to claim 1, characterized in that, The transverse horizontal section of the conveying roller (3) is in the shape of an I-beam, and the two sides of the I-beam are set with C-shaped arc concave surfaces. The ends of the conveying roller (3) located on the same transverse horizontal plane at the base (1) are mounted on the same connecting plate.

3. An automatic feeding device for a steel ball cold heading machine according to claim 1 or 2, characterized in that, The folding arm (3a) has a rotating shaft in the middle, which extends horizontally to the through-moving frame (3b). The two ends of the folding arm (3a) are rotatably connected to the middle of the connecting plate and the end of the conveying roller (3) above the base (1), respectively. A transverse conveying mechanism is provided above the moving frame (3b).

4. The automatic feeding device for a steel ball cold heading machine according to claim 1, characterized in that, The applicator (4) is provided with an inner cylinder (4b), and the telescopic scraper (4a) is provided at the inner cylinder (4b). Cover plates (4c) are fixedly installed at both ends of the applicator (4). The cover plate (4c) has a plug-in block on the side facing the applicator (4). Both ends of the inner cylinder (4b) are provided with plug-in slots that cooperate with the plug-in blocks.

5. The automatic feeding device for a cold heading machine for steel balls according to claim 4, characterized in that, An annular channel is formed between the applicator (4) and the inner cylinder (4b), and a rotating cylinder (4d) is rotatably arranged in the annular channel. The end of the telescopic scraper (4a) extends outward from the inner cylinder (4b) until it penetrates the inner cylinder (4b).

6. The automatic feeding device for a steel ball cold heading machine according to claim 5, characterized in that, An adjusting plate (4d1) is provided between the inner wall of the rotating cylinder (4d) and the telescopic oil scraper (4a). Both ends of the adjusting plate (4d1) are provided with hinge blocks, and the two ends of the adjusting plate (4d1) are respectively hinged to the rotating cylinder (4d) and the telescopic oil scraper (4a) through the hinge blocks.

7. The automatic feeding device for a cold heading machine for steel balls according to claim 6, characterized in that, The coating tube (4) is provided with a slot and several positioning slots. The outer wall of the rotating tube (4d) is provided with a push plate (4d2) that passes through the slot. The push plate (4d2) is provided with a limiting bolt that works in conjunction with the positioning slot.

8. The automatic feeding device for a cold heading machine for steel balls according to claim 4, characterized in that, A transmission gear is provided at the spraying device (2), and a driven gear that works in conjunction with the transmission gear is connected at the cover plate (4c).

9. The automatic feeding device for a cold heading machine for steel balls according to claim 1, characterized in that, A push cylinder (5) is installed at the base (1). A support plate (5a) is installed on the top of the push cylinder (5) to support the bottom of the conveying roller (3). A steel ball is embedded in the top of the support plate (5a) and contacts the outer wall of the conveying roller (3).

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