A material receiving device for a cold header

Abstract

The utility model belongs to cold upsetting equipment technical field especially relates to a kind of material receiving device of cold header, it includes: cold header main body, and cold header main body is provided with discharge port;Discharge track, discharge track is set on discharge port for guiding metal piece to discharge cold header main body;Material collecting piece, material collecting piece is set below discharge track discharge end, and material collecting piece is conveyor belt or material collecting box;Further include: impact guiding unit, impact guiding unit is set between discharge track discharge end and material collecting piece;Wherein, impact guiding unit is used to receive the metal piece discharged by discharge track discharge end and guide it to fall to material collecting piece, and impact guiding unit converts the free-fall impact generated in the movement of metal piece along discharge track into sliding impact received by impact guiding unit when guiding metal piece.Relative to prior art, the utility model improves the production quality of metal piece.

Description

Technical Field

[0001] This utility model belongs to the technical field of cold heading equipment, and in particular relates to a receiving device for a cold heading machine. Background Technology

[0002] A cold heading machine is a specialized piece of equipment used for the mass production of metal parts, primarily based on the upsetting process. For example, patent application number CN202320736367.4 discloses a nut cold heading machine that facilitates material receiving, relating to the technical field of cold heading machines. It includes a machine body and a feeding track mounted on the machine body. A sliding opening is provided through the feeding track, and a baffle is slidably mounted on the feeding track. The baffle extends through the sliding opening and slides at the feeding track outlet. An insertion groove is provided on the inner sidewall of the feeding track, located on the sliding path of the baffle. The end of the baffle is used to insert into the insertion groove and seal the opening of the feeding track. When the existing cold heading machine is in use, the metal parts fall directly from the cold heading machine body onto the collection box or conveyor belt via the feeding track. Due to the large drop height difference, the impact is violent, which can easily cause the surface of the metal parts to deteriorate due to impact and collision (such as scratches and deformation). In addition, additional post-processing (such as surface grinding) is required, which increases the workload and reduces the production quality of the metal parts. Therefore, it is necessary to make improvements. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned technical problems by providing a receiving device for a cold heading machine, which effectively prevents metal parts from colliding due to severe impacts and improves the production quality of metal parts.

[0004] In view of this, the present invention provides a receiving device for a cold heading machine, comprising: The main body of the cold heading machine is provided with a feeding port; The feeding track is set on the feeding port to guide the metal parts out of the cold heading machine body; A material collection component, which is located below the discharge end of the material discharge track, and is a conveyor belt or a material collection box; Also includes: An impact guiding unit is disposed between the discharge end of the feeding track and the collecting component; The impact guiding unit is used to receive the metal parts discharged from the discharge end of the feeding track and guide them to fall into the collecting unit. When guiding the metal parts, the impact guiding unit converts the free fall impact generated by the metal parts moving along the feeding track into the sliding impact received by the impact guiding unit.

[0005] In this technical solution, after the cold heading machine is started, it performs upsetting processing on metal sheets or wires to form metal parts. After processing, the main control system of the cold heading machine sends a feeding signal to the PLC controller and pushes the metal parts to the feeding port. The metal parts slide out along the track surface of the feeding track. When the metal parts slide to the discharge end of the feeding track, they fall onto the impact guide unit. At this time, the impact kinetic energy generated during the free fall stage is converted into sliding impact kinetic energy under the support of the impact guide unit. The sliding impact kinetic energy is gradually consumed under the action of friction, and the impact energy is greatly reduced. This effectively avoids scratches or deformation on the surface of the nut due to free fall impact, and improves the production quality of the metal parts.

[0006] In the above technical solution, the impact guiding unit further includes: A receiving plate is disposed between the discharge end of the feeding track and the collecting component. The upper surface of the receiving plate overlaps with the horizontal plane where the discharge end of the feeding track is located to guide the metal part to smoothly transition from the feeding track to the receiving plate. The receiving plate is driven by a drive cylinder to reciprocate along the horizontal projection direction of the material discharge track, and the receiving plate is supported by a support guide.

[0007] Furthermore, the above technical solution also includes: An extension tongue plate is provided at the discharge end of the feeding track. The surface of the extension tongue plate is arranged at an angle to further guide the metal parts to smoothly transition from the feeding track to the receiving plate. The angle between the surface of the extended tongue plate and the track surface of the feeding track is 160°~170°.

[0008] Furthermore, the above technical solution also includes: An oil removal drum is located at the end of the conveyor belt or below the discharge end of the feeding track; The deoiling drum is used to receive metal parts and separate the cold heading lubricating oil adhering to the surface of the metal parts.

[0009] Furthermore, the above technical solution also includes: The outer barrel body has an open outer barrel opening at its upper end; The inner barrel is rotatably disposed in the outer barrel and concentrically distributed with the outer barrel. The circumferential sidewalls and bottom surface of the inner barrel are provided with several through holes connecting the inner barrel and the outer barrel. The upper end of the inner barrel has an open inner barrel opening. The inner barrel is driven to rotate by a drive motor located at the bottom of the outer barrel, and the bottom of the outer barrel has an oil drain pipe that communicates with the interior of the outer barrel.

[0010] The beneficial effects of this utility model are: 1. In the prior art, metal parts are directly subjected to free fall, and the impact energy is concentrated at the moment of contact, which can easily lead to surface scratches and deformation. The present invention uses an impact guiding unit to transform the vertical free fall impact into the horizontal sliding impact (the impact energy is dispersed through the movement of the receiving plate), which greatly reduces the collision force between the metal parts and the receiving plate and the material collection parts, fundamentally reducing surface damage, eliminating the need for subsequent additional grinding treatment, and improving product qualification rate and production efficiency.

[0011] 2. By extending the tongue plate, the metal parts are further smoothly transitioned, and then the receiving plate supports the metal parts, which further reduces the collision force between the metal parts and the receiving plate and the material collection parts, fundamentally reducing surface damage. No additional grinding is required afterward, thus improving product qualification rate and production efficiency.

[0012] 3. Existing cold heading machines leave a residue of cold heading lubricating oil on the surface of metal parts, which can affect subsequent storage and processing. This invention, through the design of an oil removal tank, allows metal parts to directly enter the oil removal tank after receiving and buffering. The centrifugal force of the inner tank is used to separate the lubricating oil, and the separated lubricating oil is recycled and reused through the oil drain pipe of the outer tank (reducing lubricating oil waste). The metal parts directly obtain a clean surface, eliminating the need for a separate oil removal process, shortening the production cycle, and reducing production costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model.

[0015] Figure 2 This is a schematic diagram of the reciprocating movement of the receiving plate in this utility model.

[0016] Figure 3 This is a schematic diagram of the extended tongue plate structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the oil collection tank structure of this utility model.

[0018] Figure 5 This is a schematic cross-sectional view of the oil collection tank of this utility model.

[0019] The markings in the diagram are as follows: 1. Feeding track; 2. Collector; 3. Impact guide unit; 30. Receiving plate; 31. Drive cylinder; 32. Support guide; 33. Extension tongue plate; 4. Oil removal barrel; 40. Outer barrel; 41. Inner barrel; 42. Through hole; 43. Drive motor; 44. Oil drain pipe; 45. Support protrusion; 5. Metal parts. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0022] cold heading machine body The cold heading machine body has conventional upsetting processing, control system (such as PLC control system), feeding port and feeding track 1. The feeding port is connected to the feeding track 1 to ensure that the processed metal parts 5 can smoothly enter the feeding track 1. The feeding track 1 is fixed at the feeding port and extends in an inclined or horizontal shape (adapted to the structure of the cold heading machine body) to guide the metal parts 5 to be discharged from the cold heading machine body along a preset path. The feeding port is opened on the discharge side of the cold heading machine body. The feeding track 1 is a stainless steel groove and is fixed to the feeding port with bolts. The feeding track 1 extends downward in an inclined shape, and its discharge end is 1.0m above the ground to ensure that the metal parts 5 can slide stably along the track and be discharged.

[0023] Material collection component 2 The collecting component 2 is located below the discharge end of the feeding track 1. It can be a conventional conveyor belt (for continuous conveying of metal parts 5) or a collecting box (for batch collection of metal parts 5), and undertakes the final collection function of metal parts 5.

[0024] Impact Guiding Unit 3 The impact guide unit 3, acting as a buffer core, is located between the discharge end of the feeding track 1 and the collecting component 2. Its core function is to receive the metal parts 5 discharged from the feeding track 1 and convert the free-fall impact generated by the metal parts 5 during their movement along the feeding track 1 into a sliding impact. Specifically, it includes a receiving plate 30, a drive cylinder 31, a support guide component 32, and an extension tongue plate 33. The receiving plate 30 is horizontally arranged between the discharge end of the feeding track 1 and the collecting component 2. Its upper surface overlaps with the horizontal plane where the discharge end of the feeding track 1 is located, ensuring that the metal part 5 can smoothly transition from the feeding track 1 to the surface of the receiving plate 30. The receiving plate 30 is driven by the drive cylinder 31 and can reciprocate linearly along the horizontal projection direction of the feeding track 1. Through the movement, the metal part 5 falling on the receiving plate 30 is further discharged towards the collecting component 2. Drive cylinder 31: can be a conventional pneumatic cylinder or a hydraulic cylinder, and is fixedly installed on the side wall or frame of the cold heading machine body by bolt connection. The drive end of the drive cylinder 31 extends in a straight line in the horizontal direction and is detachably connected to the rear end of the receiving plate 30 by bolts or pins to ensure stable power transmission. Support guide component 32: It adopts a guide rail structure, including two guide rails symmetrically distributed on the left and right sides of the receiving plate 30. The guide rails are connected to the cold heading machine body through the rail support rods (the two ends of the rail support rods are welded or bolted to the cold heading machine body and the guide rails respectively through flanges), so as to achieve stable support for the guide rails; the bottom surface of the receiving plate 30 is fixed with a slider adapted to the guide rails by bolts. The slider is sleeved on the outside of the guide rails, and the two form a sliding fit to ensure the stability of the receiving plate 30 during reciprocating movement and to prevent the metal part 5 from slipping off due to tilting; Extended tongue plate 33: It is fixed to the discharge end of the feeding track 1 by welding or bolt connection. Its plate surface is arranged at an angle, and the included angle between the plate surface and the track surface of the feeding track 1 is 160°~170°. The joint between the two is rounded (rounded radius is R2~R5), which further optimizes the transition path of the metal part 5 from the feeding track 1 to the receiving plate 30 and avoids surface damage to the metal part 5 due to jamming or collision at the transition.

[0025] Oil removal drum 4 To separate the cold heading lubricating oil from the surface of the metal parts 5, the device also includes an oil removal tank 4. The oil removal tank 4 can be located at the end of the conveyor belt (to receive the metal parts 5 conveyed by the conveyor belt) or directly below the discharge end of the unloading track 1 (if the collecting unit 2 is not used, the metal parts 5 enter the oil removal tank 4 directly after being buffered by the impact guiding unit 3). The oil removal tank 4 consists of an outer tank body 40, an inner tank body 41, a drive motor 43, and a supporting protrusion 45. Outer barrel 40: It has a cylindrical structure with an open outer barrel opening at the top (for receiving metal parts 5). Support feet are welded or bolted to the bottom to ensure that the outer barrel 40 is placed stably. An oil drain pipe 44 communicating with the inside is opened at the center of the bottom of the outer barrel 40. A valve (such as a ball valve) can be installed on the oil drain pipe 44 to control the discharge of lubricating oil after degreasing. Inner barrel 41: Also cylindrical in shape, it is coaxially rotatably mounted inside the outer barrel 40. Several through holes 42 are provided on the circumferential side walls and bottom surface of the inner barrel 41 (the diameter of the through holes 42 is 5~10mm, which is smaller than the minimum size of common metal parts 5 to prevent metal parts 5 from falling off). These holes allow the centrifugally separated lubricating oil to flow into the outer barrel 40 through the through holes 42. The upper end of the inner barrel 41 has an open inner barrel opening, which is aligned with the outer barrel opening to ensure that the metal parts 5 can smoothly enter the inner barrel 41. Drive motor 43: Fixedly installed on the outside of the bottom of the outer barrel 40. The output shaft of drive motor 43 is connected to the central shaft at the bottom of the inner barrel 41 through a coupling (the central shaft and the inner barrel 41 are connected by a key to ensure reliable power transmission). It is used to drive the inner barrel 41 to rotate at high speed around its own axis to generate centrifugal force to achieve lubricating oil separation. Support protrusions 45: Located on the inner side of the bottom of the outer barrel 40, 3 to 4 are evenly distributed around the circumference of the outer barrel 40. A rolling support structure (such as a ball bearing structure, including a ball bearing groove and a ball bearing, with grease applied to the ball bearing groove) is installed at the top of the support protrusions 45. The bottom of the inner barrel 41 contacts the ball bearing. Rolling friction replaces sliding friction, reducing the resistance when the inner barrel 41 rotates, improving rotational stability and extending the service life of the components.

[0026] Control and linkage To ensure coordinated operation of all components, the device may also include an additional control system (such as a PLC controller). This controller is linked to the main control system of the cold heading machine and can adjust the operating frequency of the drive cylinder 31 and the rotation speed of the inner barrel 41 according to the feeding frequency of the cold heading machine. For the drive cylinder 31, if it is a pneumatic cylinder, its control circuit includes an air source, a three-part assembly (filter, pressure reducing valve, lubricator), and a solenoid valve. The solenoid valve is electrically connected to the PLC controller. The controller controls the solenoid valve to switch directions according to the cold heading machine's feeding signal, thereby realizing the extension and retraction of the drive cylinder 31, which in turn drives the receiving plate 30 to reciprocate (for example, after the metal part 5 falls onto the receiving plate 30, the drive cylinder 31 drives the receiving plate 30 to move backward, and the metal part 5 falls onto the collecting part 2 and resets, waiting for the next metal part 5). If it is a hydraulic cylinder, its control circuit includes a hydraulic station (oil tank, oil pump, overflow valve, directional valve). The directional valve is electrically connected to the PLC controller. The controller controls the directional valve to move, thereby realizing the extension and retraction of the drive cylinder 31. For the drive motor 43, a frequency converter is connected in series in its power supply circuit. The frequency converter is electrically connected to the PLC controller. The controller can adjust the output frequency of the frequency converter according to the material and size of the metal part 5, thereby changing the speed of the drive motor 43 (for example, for the heavy metal part 5, the speed is appropriately increased to ensure thorough oil removal; for the easily deformable metal part 5, the speed is reduced to avoid collision damage).

[0027] Working principle During the material feeding and transition stage of metal part 5, after the main body of the cold heading machine is started, the metal raw material is upset to form metal part 5. After the processing is completed, the main control system of the cold heading machine sends a feeding signal to the PLC controller and pushes the metal part 5 to the feeding port. The metal part 5 slides out along the groove (track surface) of the feeding track 1. When the metal part 5 slides to the discharge end of the feeding track 1, it first contacts the extension tongue plate 33. Because the extension tongue plate 33 and the track surface of the feeding track 1 form a 165° angle and the joint is a R3 rounded corner, the metal part 5 slides smoothly down the plate surface of the extension tongue plate 33, avoiding jamming or collision caused by right angle transition. Then the metal part 5 slides down to the upper surface of the receiving plate 30. During the impact buffering stage, after receiving the feeding signal from the cold heading machine, the PLC controller sends a control signal to the solenoid valve of the cylinder after a 100ms delay, ensuring that the metal part 5 falls completely onto the receiving plate 30. Due to inertia, the metal part 5 slides along the surface of the receiving plate 30, and its vertical downward trend is converted into horizontal motion buffering. Then, the solenoid valve reverses, the rodless chamber of the cylinder receives air, and the rod chamber exhausts air. The piston rod drives the receiving plate 30 to move backward along the guide rail. During this process, the metal part 5 moves synchronously with the receiving plate 30. When the metal part 5 moves backward and contacts the discharge end of the feeding track 1, the metal part 5 is blocked and finally falls smoothly from the receiving plate 30 onto the conveyor belt. The original free fall impact of "the metal part 5 falling freely from the discharge end of the feeding track 1 onto the conveyor belt" is transformed into a sliding impact of "the metal part 5 moving horizontally with the receiving plate 30 and then falling smoothly from the receiving plate 30 onto the conveyor belt". The impact energy is greatly reduced, avoiding scratches or deformation on the surface of the metal part 5.

[0028] When the receiving plate 30 moves to its maximum stroke, the PLC controller sends a reverse control signal to the solenoid valve. The solenoid valve reverses again, the rod chamber of the cylinder receives air and the rodless chamber exhausts air. The piston rod drives the receiving plate 30 to reset to its initial position along the guide rail, waiting for the next metal part 5 to fall, completing one buffer cycle. The reciprocating motion frequency of the receiving plate 30 is consistent with the feeding frequency of the cold heading machine, ensuring that each metal part 5 can be buffered.

[0029] During the material collection and conveying stage, the metal parts 5, after being buffered by the receiving plate 30, fall smoothly from the receiving plate 30 onto the conveyor belt below. The conveyor belt runs at a uniform speed under the control of the PLC controller, conveying the metal parts 5 towards the degreasing drum 4. Because the speed of the conveyor belt is matched with the buffering rhythm of the receiving plate 30, the metal parts 5 are evenly distributed on the conveyor belt (with a spacing of about 50mm), avoiding secondary collisions caused by accumulation and further protecting the surface quality of the metal parts 5. During the degreasing stage, when the conveyor belt transports the metal part 5 to the end, the metal part 5 falls into the inner barrel 41 of the degreasing tank 4 under the action of gravity. After the metal part 5 enters the inner barrel 41, it rotates synchronously with the inner barrel 41. Under the action of centrifugal force, the cold heading lubricating oil attached to its surface is thrown off the surface of the metal part 5. Under the action of centrifugal force, the lubricating oil passes through the through holes 42 on the side wall and bottom surface of the inner barrel 41 and flows into the interior of the outer barrel 40. The lubricating oil in the outer barrel 40 gradually accumulates. When the liquid level reaches a certain level, the operator opens the ball valve on the oil drain pipe 44 to drain the lubricating oil into the oil storage tank, realizing the recycling and reuse of the lubricating oil (the recycled lubricating oil can be reused for the lubrication of the cold heading machine after filtration, reducing the cost of consumables). During the rotation of the inner tub 41, its bottom contacts the ball bearings at the top of the support protrusion 45 of the outer tub 40. The ball bearings roll as the inner tub 41 rotates, converting the sliding friction between the inner tub 41 and the outer tub 40 into rolling friction. This significantly reduces the load on the drive motor 43, lowers energy consumption, and prevents deformation of the bottom of the inner tub 41 due to friction and wear, thus extending the service life of the inner tub 41. During the metal part 5 collection stage, after the deoiling is completed, the PLC controller sends a signal to the frequency converter to reduce the speed of the drive motor 43, and then turns off the drive motor 43; the operator takes out the metal part 5 from the inner barrel 41 through the outer barrel opening, completing the entire material receiving, buffering and deoiling process.

[0030] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A receiving device for a cold heading machine, comprising: The main body of the cold heading machine is provided with a feeding port; The feeding track (1) is set on the feeding port to guide the metal parts (5) out of the cold heading machine body; The material collection component (2) is located below the discharge end of the feeding track (1), and the material collection component (2) is a conveyor belt or a material collection box; Its characteristic is that it further includes: Impact guiding unit (3), the impact guiding unit (3) is disposed between the discharge end of the feeding track (1) and the collecting component (2); The impact guide unit (3) is used to receive the metal part (5) discharged from the discharge end of the feeding track (1) and guide it to fall to the collection unit (2). When guiding the metal part (5), the impact guide unit (3) transforms the free fall impact generated by the metal part (5) during its movement along the feeding track (1) into the sliding impact received by the impact guide unit (3).

2. The receiving device for a cold heading machine according to claim 1, characterized in that, The impact guiding unit (3) also includes: The receiving plate (30) is disposed between the discharge end of the feeding track (1) and the collecting component (2). The upper surface of the receiving plate (30) overlaps with the horizontal plane where the discharge end of the feeding track (1) is located to guide the metal part (5) to smoothly transition from the feeding track (1) to the receiving plate (30). The receiving plate (30) is driven by the drive cylinder (31) to move back and forth along the horizontal projection direction of the material discharge direction of the feeding track (1), and the receiving plate (30) is supported by the support guide (32).

3. The receiving device for a cold heading machine according to claim 2, characterized in that, Also includes: An extension tongue plate (33) is provided at the discharge end of the feed track (1). The surface of the extension tongue plate (33) is arranged at an inclination to further guide the metal part (5) to smoothly transition from the feed track (1) to the receiving plate (30). The angle between the surface of the extended tongue plate (33) and the track surface of the feeding track (1) is 160°~170°.

4. The receiving device for a cold heading machine according to claim 1, characterized in that, Also includes: Oil removal barrel (4), which is located at the end of the conveyor belt or below the discharge end of the feeding track (1); The deoiling drum (4) is used to receive the metal part (5) and separate the cold heading lubricating oil adhering to the surface of the metal part (5).

5. The receiving device for a cold heading machine according to claim 4, characterized in that, Also includes: The outer barrel (40) has an open opening at its upper end; The inner barrel (41) is rotatably disposed in the outer barrel (40) and is concentrically distributed with the outer barrel (40). The circumferential sidewall and bottom surface of the inner barrel (41) are provided with a plurality of through holes (42) connecting the inner barrel (41) and the outer barrel (40). The upper end of the inner barrel (41) has an open inner barrel opening. The inner barrel (41) is driven to rotate by a drive motor (43) located at the bottom of the outer barrel (40), and the bottom of the outer barrel (40) has an oil drain pipe (44) that communicates with the inside of the outer barrel (40).

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