Elastic strip feeding device

Abstract

The invention discloses an elastic strip feeding device which comprises a feeding mechanism, the feeding mechanism comprises a horizontal pushing assembly used for horizontally pushing bars into a heating furnace, and the horizontal pushing assembly comprises a pushing limiting rail; the elastic strip feeding device further comprises a discharging mechanism used for discharging elastic strips. The discharging mechanism comprises a bar discharging bin installed at the top of the pushing limiting rail, and a discharging limiting bin part is integrally formed at the lower end of the bar discharging bin. The inner side wall of the discharging limiting bin part is connected with a plurality of bar elastic blocking structures distributed on the two sides in an assembled mode, and the vertically-arranged elastic strips are arranged above the bar elastic blocking structures in a blocking mode. The bar elastic blocking structure comprises an abutting wheel, an elastic abutting structure is installed on the abutting wheel and comprises a plurality of arc-shaped elastic abutting pieces distributed in the circumferential direction, bars are clamped through the elastic abutting structure, and the technical problems that abrasion of the abutting wheel is increased, and the bars cannot slide are solved. By means of the structure, bar materials are discharged one by one in an efficient, safe and labor-saving mode.

Description

Technical Field

[0001] The invention belongs to the technical field of spring bar production, and in particular relates to a spring bar feeding device. Background Art

[0002] Spring clips are made of steel bars or other materials that have been heat treated and twisted into different shapes and structures according to their intended use. For example, E-shaped spring clips are mostly used as connectors on train tracks.

[0003] Based on this, there are many public reports on technical improvements in the production of spring bars, such as the Chinese patent publication No. CN218487080U, which discloses a spring bar one-step forming machine.

[0004] Its specific technical scheme is publicly reported as follows: the molding machine includes a base, a mounting frame is connected to the top of the base, a first cylinder mechanism and a second cylinder mechanism are respectively installed on the top of one side of the mounting frame, a lower mold is fixedly installed on one side of the mounting frame through a frame mold, and a positioning column is arranged on the surface of the lower mold, a third cylinder mechanism is installed on one side of the mounting frame, and a telescopic rod is arranged between the top of the base and the third cylinder mechanism.

[0005] This type of spring bar one-time forming machine has a feeding mechanism that automatically feeds the rod material into the forming machine. First, the cylinder piston rod of the first cylinder mechanism moves downward to form the middle limb of the spring bar, and then the left and right cylinder piston rods of the two second cylinder mechanisms move downward to form the two side limbs of the spring bar. Then the left and right cylinder piston rods of the two third cylinder mechanisms move obliquely upward to form the straight section of the side limbs of the spring bar. Subsequently, the cylinder piston rod of the fourth cylinder mechanism moves forward horizontally to cooperate with the upper die to form the arch of the spring bar, and then the guide seat assembly pushes the formed spring bar into the quenching oil pool.

[0006] The technical improvement disclosed in the above-mentioned prior art realizes the shaping of the spring bar during the production process.

[0007] In the actual production process of spring bars, the spring bars are formed by processing and molding rod-shaped bars. Specifically, during the processing, the bars need to be pushed into the furnace for heat treatment. After heat treatment, the bars in the high temperature state can not only be easily processed into spring bar connectors of specific shapes, but also the heat treatment can increase the performance of the material such as hardness.

[0008] During the production process, the bar needs to be pushed into the furnace body for heat treatment. Since the bar has a certain length, the current common practice is to place the bar on a track and push it into the furnace body in a guided manner.

[0009] However, in the actual processing process, due to the large length and deflection of the bar, the operator is required to continuously lift the bar into the track of the knife guide during the feeding process, and the deflection causes the bar to bend and deform easily.

[0010] At the same time, due to the heavy weight of the bar, the safety of the operation cannot be guaranteed during the lifting process. If the bar is elastic, it is easy for the bar to be elastically "swayed" during the lifting process. Once the operator lifts it unsteadily, the bar is easy to fall and injure the operator.

[0011] At the same time, during the operation, when the rods are placed in the track, the diameters of the rods used for different products are different. Therefore, in the actual working process, it is difficult to accurately push the rods of different diameters to the feed port of the furnace body, that is, it is difficult to correct the relative position of the rods and the feed port of the furnace body.

[0012] The above technical defects are currently one of the key factors that reduce the production efficiency of the spring strips, but the existing technology has not well solved the technical problems existing in the above production process. Summary of the invention

[0013] Based on the above background, an object of the present invention is to provide a spring bar feeding device.

[0014] To achieve the above objectives, the present invention adopts the following technical solutions:

[0015] A spring bar feeding device, characterized in that it comprises a feeding mechanism, wherein the feeding mechanism comprises a horizontal pushing component for pushing the bar material horizontally into the heating furnace, and the horizontal pushing component comprises a pushing limit track;

[0016] The spring bar feeding device also includes a feeding mechanism for feeding the spring bars;

[0017] The unloading mechanism comprises a bar unloading bin installed at the top of the push-limiting track, and a unloading limiting bin portion is integrally formed at the lower end of the bar unloading bin;

[0018] The inner side wall of the material unloading limit bin is connected with a plurality of rod material elastic blocking structures distributed on both sides, and the vertically arranged spring strip blocking structures are located above the rod material elastic blocking structures;

[0019] The unloading limit bin is also equipped with a bar material pull-down discharge structure. During the unloading process, the bar material is pressed down by the bar material pull-down discharge structure, and the bar material at the bottom passes through the elastic resistance of the bar material elastic baffle structure and is discharged one by one.

[0020] The bar material elastic isolation structure comprises a vertically arranged elastic wheel frame, and the upper and lower ends of the elastic wheel frame are rotatably connected with abutment wheels respectively;

[0021] The bottom two sides of the bar material at the bottom position are blocked on the two side wheels;

[0022] An elastic resistance structure is fixedly connected to the contour of the wheel, and the elastic resistance structure includes a plurality of arc-shaped elastic resistance pieces distributed around the circumference, the inner ends of the arc-shaped elastic resistance pieces are fixedly connected to the wheel, and the outer ends of the arc-shaped elastic resistance pieces are fixedly connected to the top positions of the arc-shaped elastic resistance pieces at adjacent positions;

[0023] During the process of discharging the bar material by downward movement, the bar material presses against the deformed arc-shaped elastic pieces and is elastically pressed out from the gaps between the arc-shaped elastic pieces.

[0024] Preferably, the bar material unloading bin comprises an upper bin portion with a rectangular transverse cross-sectional shape and a middle bin portion with a trapezoidal longitudinal cross-sectional shape, and the unloading limiting bin portion has a rectangular transverse cross-sectional shape;

[0025] The bar material elastic isolation structure comprises a vertically arranged elastic wheel frame, and the upper and lower ends of the elastic wheel frame are rotatably connected with abutment wheels respectively;

[0026] The bottom two sides of the bar material at the bottom position are blocked on the two side wheels;

[0027] The elastic wheel frame is elastically and slidably connected to the inner side wall of the material unloading limiting bin portion through a spring member.

[0028] Preferably, the left and right side walls of the material unloading limit bin are respectively provided with bar material pull-down unloading structures spaced apart from each other on both sides;

[0029] The bar material pulling-down discharging structure comprises a lower pushing cylinder fixedly mounted on the side wall of the material discharging limiting bin, the piston rod of the lower pushing cylinder is fixedly mounted with a horizontal cylinder, and the piston rod of the horizontal cylinder is fixedly connected with a lower material discharging rod;

[0030] The material lowering limit bin is provided with a rectangular through opening which cooperates with the lower material lowering rod;

[0031] During the process of pulling down the bar, the horizontal cylinder pushes the lower push rod into between the bar, and the lower push cylinder drives the horizontal cylinder to descend, and the lower push rod pulls down the bottom bar, and the bar passes through between the wheels under the downward pulling force;

[0032] During the penetration process, the elastic wheel frame carries the wheels away from each other to increase the space for the bar to pass.

[0033] Preferably, the front and rear sides of the left and right side walls of the middle bin are respectively provided with bar material interception and discharge structures;

[0034] The bar stock intercepting and feeding structure comprises an intercepting and feeding cylinder, the piston rod of which is fixedly assembled and connected with an intercepting rod slidably connected to the middle bin;

[0035] The bars stacked in the bar feeding bin are separated and discharged by the intercepting rod.

[0036] Preferably, the feeding mechanism further comprises a lateral moving assembly and a lifting moving assembly for correcting and aligning the positions of bars of different diameters with the feeding port of the heating furnace; the horizontal pushing assembly is mounted on the top of the lateral moving assembly, and the lateral moving assembly is mounted on the top of the lifting moving assembly;

[0037] The horizontal pushing assembly also includes a horizontal screw rack, in which a first screw is rotatably connected, and a screw servo motor is installed on the first screw;

[0038] A horizontal push slide is threadedly connected to the first lead screw, and push limit rails are fixedly installed on both sides of the horizontal lead screw frame, and a push channel is formed between the push limit rails;

[0039] A material pushing straight hook plate for pushing the bar material forward is fixedly connected to the top of the horizontal pushing slide, and the upper end of the material pushing straight hook plate is located in the pushing channel.

[0040] Preferably, a first lead screw threaded seat is fixedly connected to the bottom center of the horizontal push slide, and the first lead screw threaded seat is threadedly connected to the first lead screw;

[0041] The bottom two sides of the horizontal push slide are respectively fixedly connected with a first slide seat, and the two sides of the horizontal lead screw frame are respectively fixedly connected with a first slide rail slidably connected to the first slide seat.

[0042] Preferably, the lateral movement assembly comprises a lateral screw frame vertically arranged with respect to the horizontal screw frame, a second screw is rotatably connected in the lateral screw frame, and a first handle wheel is fixedly mounted on the end of the second screw;

[0043] The second lead screw is threadedly connected to a transverse slide, and the horizontal lead screw frame is fixedly mounted on the top of the transverse slide;

[0044] A second lead screw threaded seat threadedly connected to a second lead screw is fixedly connected at the bottom center of the transverse slide;

[0045] The bottom two sides of the transverse slide are respectively fixedly connected with second slide seats, and the top two sides of the transverse lead screw frame are fixedly connected with second slide rails slidably connected with the second slide seats.

[0046] Preferably, the lifting and moving assembly includes a lifting platform, and the transverse screw frame is fixedly connected to the top position of the lifting platform;

[0047] The lifting and moving assembly also includes a lifting screw for lifting the lifting platform, and the lifting screw is threadedly connected to the workbench;

[0048] The bottom of the lifting screw is fixedly connected with a driving wheel handle.

[0049] Preferably, the bottom of the lifting platform is fixedly connected with a plurality of sliding rods slidably connected to the workbench;

[0050] The top of the lifting screw is rotatably connected to the bottom center position of the lifting platform.

[0051] Preferably, the pusher straight hook plate comprises a base portion fixedly connected to the top position of the horizontal push slide, and the base portion is integrally formed with a vertically arranged straight hook plate portion.

[0052] Preferably, a plurality of arc-shaped resistance-increasing structures are fixedly connected to the arc-shaped elastic resistance piece;

[0053] The resistance-increasing structure comprises an elastic boss which is heat-welded on an arc-shaped elastic support piece, and a plurality of elastic convex ridges are integrally formed on the elastic boss.

[0054] The present invention has the following beneficial effects:

[0055] 1. The elastic blocking structure of the bar material is specifically adopted, which includes a vertically arranged elastic wheel frame, and the upper and lower ends of the elastic wheel frame are rotatably connected with the wheels. The bottom two sides of the bar material at the bottom position are blocked on the two side wheels; the elastic wheel frame is elastically slidably connected to the inner side wall of the material limit bin through a spring member.

[0056] It is convenient to unload the bars one by one during unloading. During unloading, because the bars are stacked in the bin above the track, it is only necessary to unload the bars one by one, which effectively solves the problem that the operator needs to bend down frequently to move the bars during traditional loading. It also solves the technical defect that the bars are easy to bend during transportation due to the deflection of the bars. And the defect that the bars shake violently during transportation due to the elasticity of the bars, which is highly dangerous.

[0057] 2. The material discharging structure is specifically provided by a lower pushing cylinder fixedly mounted on the side wall of the material discharging limit bin, the piston rod of the lower pushing cylinder is fixedly mounted with a horizontal cylinder, and the piston rod of the horizontal cylinder is fixedly connected with a lower material discharging rod. In the process of pulling down the bar material, the horizontal cylinder pushes the lower material discharging rod between the bar material, the lower pushing cylinder drives the horizontal cylinder to descend, and the lower material discharging rod pulls down the bottom bar material, and the bar material passes through between the wheels under the downward pulling force; during the passing process, the elastic wheel frame carries the wheels away from each other to increase the space for the bar material to pass through. The above method can realize the simple, flexible and labor-saving way of dropping the bar material into the track one by one, thus solving the problem of difficulty in loading the bar material onto the track.

[0058] 3. During the working process, first load the bar material onto the horizontal push component and push it toward the feed port of the heating furnace. During the pushing process, adjust the relative position of the bar material and the feed port of the heating furnace according to the diameter of the bar material to ensure that the bar material is aligned with the feed port of the heating furnace to achieve precise pushing. Specifically, the horizontal direction is corrected by the lateral moving component, and the height position is corrected by the lifting and lowering moving component. In this way, precise pushing and loading of bars of various specifications can be achieved.

[0059] 4. During the working process, various specifications of bars can be loaded, and a single loading device can be used to load various specifications of bars for processing various specifications of products, solving the technical defect of poor flexibility in the production process of spring bars.

[0060] 5. The elastic resistance structure specifically comprises a plurality of arc-shaped elastic resistance pieces distributed around the circumference, wherein the inner end of the arc-shaped elastic resistance piece is fixedly connected to the resistance wheel, and the outer end of the arc-shaped elastic resistance piece is fixedly connected to the top position of the arc-shaped elastic resistance piece at the adjacent position.

[0061] The bottom bar is stuck between the arc-shaped elastic pieces. When the lower material pusher pushes the bar downward, the bar squeezes the arc-shaped elastic pieces. The arc-shaped elastic pieces are fixedly connected to each other at their outer ends. Therefore, several arc-shaped elastic pieces are interlocked and deformed to form a gap through which the bar can pass. In this process, since the bar is always under the interlocking pressure of several arc-shaped elastic pieces, the bar can be discharged slowly one by one.

[0062] The above method solves the technical defect that the wear of the push wheel causes the push wheel to be unable to effectively clamp the rod material in the later stage, causing the rod material to easily "slip".

[0063] 6. The resistance-enhancing structure on the arc-shaped spring plate increases the stability of the stuck bar and increases the stability of the bar when it is pushed down. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0065] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present invention;

[0066] Figure 2 It is a structural schematic diagram of a horizontal pushing component in an embodiment of the present invention;

[0067] Figure 3It is a structural schematic diagram of a horizontal push slide table that is threadedly connected to a first lead screw in an embodiment of the present invention;

[0068] Figure 4 It is a schematic diagram of the structure of a lateral moving component in an embodiment of the present invention;

[0069] Figure 5 This is a schematic diagram of the structure of the lifting and moving assembly in an embodiment of the present invention;

[0070] Figure 6 Schematic diagram of the planar structure of the feeding mechanism in the embodiment of the present invention;

[0071] Figure 7 It is a structural schematic diagram of a feeding mechanism in an embodiment of the present invention;

[0072] Figure 8 It is a structural schematic diagram of the elastic blocking structure of the bar material in the embodiment of the present invention, which blocks the bar material;

[0073] Fig. 9 It is a structural schematic diagram of the rod material pull-down discharging structure in an embodiment of the present invention;

[0074] Fig.10 This is a schematic diagram of the distribution structure of the elastic barrier structure of the bar material in the embodiment of the present invention;

[0075] Fig.11 It is a schematic diagram of the structure of the spring-resistance structure that blocks the rod material in an embodiment of the present invention;

[0076] Fig.12 It is a structural schematic diagram of a spring-loaded structure for fixing a wheel against a wheel in an embodiment of the present invention;

[0077] Fig.13 It is a structural schematic diagram of the elastic resistance structure in an embodiment of the present invention;

[0078] Fig.14 Schematic diagram of the structure of the arc-shaped elastic piece in the embodiment of the present invention;

[0079] Fig.15 Schematic diagram of the structure of the resistance increasing structure in an embodiment of the present invention.

[0080] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0081] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0082] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0083] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0084] Example 1

[0085] like Figure 1-11 As shown, a spring bar feeding device includes a feeding mechanism 3, wherein the feeding mechanism 3 includes a horizontal pushing component for pushing the rod material horizontally into the heating furnace, and the horizontal pushing component includes a pushing limit track 34.

[0086] In order to facilitate the unloading of a large number of bars 2 during the bar processing, the spring bar feeding device further includes a unloading mechanism for unloading the spring bars.

[0087] Specifically, the unloading mechanism includes a bar unloading bin installed at the top of the push limit track 34, and the bar unloading bin is shaped as follows: from top to bottom, the bar unloading bin includes an upper bin portion 61 with a rectangular transverse cross-sectional shape, an intermediate bin portion 62 with a trapezoidal longitudinal cross-sectional shape, and an unloading limit bin portion 63 integrally formed at the bottom of the intermediate bin portion 62, and the transverse cross-sectional shape of the unloading limit bin portion 63 is rectangular. The width of the unloading limit bin portion 63 corresponds to the caliber of the bar 2, so that the bar 2 is vertically arranged one by one in the unloading limit bin portion 63 waiting for unloading.

[0088] During the unloading process, in order to realize the unloading of rods one by one, the inner side wall of the unloading limit bin 63 is assembled and connected with a plurality of rod elastic blocking structures 9 distributed on both sides (the rod elastic blocking structure 9 is close to the unloading port at the bottom of the unloading limit bin 63), and the vertically arranged elastic strip blocking is located above the rod elastic blocking structure 9.

[0089] Specifically, the bar stock elastic blocking structure 9 includes a vertically arranged elastic wheel frame 92, and the upper and lower ends of the elastic wheel frame 92 are rotatably connected to the wheels 91. The bottom two sides of the bar stock at the bottom position are blocked on the wheels 91 on both sides; the elastic wheel frame 92 is elastically slidably connected to the inner side wall of the material unloading limit bin through a spring member 93.

[0090] The specific method is as follows: the spring member 93 includes a slide bar fixedly connected to the elastic wheel frame 92, the slide bar is slidably connected to the material unloading limit bin portion 63, and at the same time, a spring is sleeved on the slide bar.

[0091] The bar material elastic blocking structures 9 are distributed in a bilaterally symmetrical manner at both ends of the inner wall of the material unloading limiting bin portion 63 , so that each pair of bar material elastic blocking structures 9 can block the bar material 2 at the upper position.

[0092] In this way, the bars 2 can be conveniently unloaded one by one during the unloading process. In addition, since the bars 2 are stacked above the push limit track 34 during the unloading process, it is only necessary to unload the bars one by one during the unloading process, which effectively solves the problem of the operator frequently bending over to move the bars during the traditional loading process of the bars 2.

[0093] And the technical defect that the bar material 2 is easy to bend during transportation due to the deflection of the bar material 2 is solved.

[0094] Example 2

[0095] like Figure 1-11 As shown, based on the structure of Example 1, the present embodiment is further equipped with a rod material pull-down discharge structure 8 on the above-mentioned unloading limit bin portion 63. During the unloading process of the rod materials, the rod material 2 is pressed downward by the rod material pull-down discharge structure 8, and the rod material 2 at the bottom passes over the elastic resistance of the rod material elastic blocking structure 9 and is discharged downward, and the rods are discharged one by one into the push limit track 34 through the rod material pull-down discharge structure 8.

[0096] Specifically, the left and right side walls of the material removal limiting bin 63 are respectively provided with bar material pulling-down discharging structures 8 spaced apart from each other on both sides.

[0097] That is, the two bar material pulling-down discharging structures 8 on the left and right side walls realize synchronous pulling-down of the front and rear ends of the bar material, so that the bar materials pass over the stop wheel 91 and are discharged one by one.

[0098] Specifically, the bar material pulling-down discharging structure 8 comprises a lower pushing cylinder 81 fixedly mounted on the side wall of the material lowering limit bin 63, the piston rod of the lower pushing cylinder 81 is fixedly mounted with a horizontal cylinder 82, and the piston rod of the horizontal cylinder 82 is fixedly connected with a lower material removing rod 83. At the same time, a rectangular through-hole A cooperating with the lower material removing rod 83 is provided on the material lowering limit bin 63.

[0099] During the process of pulling down the rods, the horizontal cylinder 82 pushes the lower material pushing rod 83 between the rods, and the downward pushing cylinder 81 drives the horizontal cylinder 82 to descend, and the lower material pushing rod 83 pulls down the bottom rod 2, and the rod 2 passes through between the wheels 91 under the downward pulling force; during the penetration process, the elastic wheel frame 92 carries the wheels 91 away from each other to increase the space for the rod 2 to pass through.

[0100] Specifically, the elastic wheel frame 92 overcomes the elastic resistance of the spring, carries the wheel 91 toward the side wall of the unloading limit bin 63, and the bar loses the resistance of the wheel 91 (in the actual working process, in order to facilitate the bar to pass through the wheel 91 at the lower end, according to the existing method, the wheel 91 at the lower end is designed to be smaller than the wheel 91 at the upper end, so the gap between the wheels 91 on both sides of the lower end is larger. After the bar is pressed down from the upper wheel 91, it can continue to slowly pass through the gap between the wheels 91 on both sides of the lower end with the help of gravity), and then the material is discharged downward and falls directly into the track. The above method can realize the simple, flexible and labor-saving way to drop the bars 2 one by one into the track, solving the problem of the difficulty of loading the bars 2 onto the track.

[0101] The cylinder barrel of the lower push cylinder 81 is fixedly mounted with a cylinder barrel seat, and the cylinder barrel seat is fixedly mounted on the outer side wall of the material unloading limiting bin portion 63 .

[0102] At the same time, a plurality of guide rods 821 slidably connected to the cylinder seat are fixedly installed on the top of the cylinder barrel of the horizontal cylinder 82 to increase the stability of sliding. The piston rod of the lower push cylinder 81 is fixedly installed at the center position of the top of the cylinder barrel of the horizontal cylinder 82.

[0103] Example 3

[0104] like Figure 1-11 As shown, in this embodiment, based on the structure of the embodiment 2, the front and rear sides of the left and right side walls of the above-mentioned intermediate bin 62 are respectively installed with bar material intercepting and unloading structures. During the unloading process of the bar materials, most of the bar materials stacked in the bin are intercepted by the bar material intercepting and unloading structures, while the bar materials 2 at the bottom of the stack can be unloaded normally.

[0105] When the unloading of the bar materials 2 at the bottom of the stack is completed, the bar materials on the upper side of the stack are lowered again and stacked in the unloading limiting bin 63 through the bar material intercepting and unloading structure.

[0106] Specifically, the bar material intercepting and discharging structure includes an intercepting and discharging cylinder 72 (the cylinder is fixedly installed on the cylinder frame 71, and the cylinder frame 71 is fixedly installed on the outer wall of the warehouse body), and the piston rod of the intercepting and discharging cylinder 72 is fixedly assembled and connected with an intercepting rod 73 which is slidably connected to the middle warehouse part 62; the bars stacked in the bar material discharging bin are separated and discharged by the intercepting rod 73.

[0107] Specifically, the intercepting rods 73 on both sides cooperate to separate the stacked bars, thereby preventing the bars 2 below the stack from being severely compressed.

[0108] Example 4

[0109] like Figure 1-15 As shown, based on the structure of the third embodiment, when the bars 2 are unloaded one by one, the bars 2 at the bottom are blocked by friction with the wheels 91, and the bars 2 frequently pass through the wheels 91 by friction. Therefore, as the wheels 91 are worn by the bars 2, the gap between the wheels 91 on both sides gradually increases, and the wheels 91 are worn to a certain extent and cannot block the bars 2. As a result, the bars 2 cannot be unloaded one by one.

[0110] Therefore, by fixing the elastic resistance structure 94 on the contour of the resistance wheel 91, the rod 2 is stuck between the elastic resistance structures 94, that is, when the rod 2 passes through, the friction resistance and elastic deformation force of the elastic resistance structure 94 are overcome.

[0111] Specifically, the elastic resistance structure 94 includes a plurality of circumferentially distributed arc-shaped elastic resistance pieces 941 (made of thickened rubber plates, formed by hot pressing and bending), the inner end of the arc-shaped elastic resistance piece 941 is fixedly connected to the resistance wheel 91, and the outer end of the arc-shaped elastic resistance piece 941 is fixedly connected to the top position of the arc-shaped elastic resistance piece 941 at the adjacent position.

[0112] Specifically, the bottom bar 2 is stuck between the arc-shaped elastic pieces 941. When the lower material pusher 83 presses the bar 2 downward, the bar 2 squeezes the arc-shaped elastic pieces 941. Since the outer ends of the arc-shaped elastic pieces 941 are fixedly connected to each other, several arc-shaped elastic pieces 941 are interlocked and deformed to form a gap through which the bar 2 can pass. In this process, since the bar 2 is always under the interlocking pressure of several arc-shaped elastic pieces 941, the bar 2 can be slowly discharged one by one.

[0113] The above method solves the technical defect that the abrasion of the push wheel causes the push wheel to be unable to effectively hold the rod 2 in the later stage, causing the rod 2 to easily "slip".

[0114] In actual working process, the size of the wheel 91 at the lower end is designed to be smaller than that of the wheel 91 at the upper end, and the elastic force of the arc-shaped elastic piece 941 on the wheel 91 at the lower end is reduced (such as by reducing the thickness of the arc-shaped elastic piece 941). After the rod passes through the wheel 91 at the upper end, the rod falls between the wheel 91 at the lower end and the arc-shaped elastic piece 941. At this time, under the action of gravity, the rod squeezes the arc-shaped elastic piece 941 on the wheel 91 at the lower end, and then slowly passes through the arc-shaped elastic piece 941.

[0115] Example 5

[0116] like Figure 1-15 As shown, based on the structure of Example 4, in order to further increase the elastic resistance effect of the arc-shaped spring-resisting piece on the rod material 2, the arc-shaped spring-resisting piece 941 is fixedly connected with a plurality of arc-shaped distributed resistance-increasing structures 942; specifically, the resistance-increasing structure 942 includes an elastic boss 9421 heat-welded on the arc-shaped spring-resisting piece 941, and a plurality of elastic ridges are integrally formed on the elastic boss 9421.

[0117] Since the two sides of the bottom of the rod 2 are in contact with the elastic ridges on the two side wheels 91, the rod 2 is not easy to loosen during the blocking process. Secondly, during the unloading process of the rod 2, the elastic ridges are in contact with the rod 2, and under the action of friction, the unloading stability of the rod 2 is higher.

[0118] At the same time, during the process of jamming the bar 2, the stability is higher.

[0119] Example 6

[0120] like Figure 1-11 As shown, in this embodiment, based on the embodiment 5, the feeding mechanism 3 also includes a lateral moving component and a lifting moving component for correcting and aligning the position of the rods 2 of different diameters with the feed port of the heating furnace 2; the horizontal pushing component is installed on the top of the lateral moving component, and the lateral moving component is installed on the top of the lifting moving component.

[0121] During the working process, firstly, the bar 2 is loaded onto the horizontal pushing assembly and pushed toward the feed port of the heating furnace 2. During the pushing process, the relative position of the bar 2 and the feed port of the heating furnace 2 is adjusted according to the diameter of the bar 2 to ensure that the bar 2 is aligned with the feed port of the heating furnace 2 to achieve precise pushing. Specifically, the horizontal direction is corrected by the lateral moving assembly, and the height position is corrected by the lifting moving assembly. In this way, precise pushing and loading of bars 2 of various specifications can be achieved.

[0122] The specific structure of the horizontal pushing assembly is as follows: the horizontal pushing assembly also includes a horizontal screw frame 32, in which a first screw is rotatably connected (according to the existing method, bearing seats rotatably connected to the first screw are installed at both ends of the horizontal screw frame 32, and the first screw is fixedly installed on the inner ring of the bearing in the bearing seat), and the first screw is installed with a screw servo motor 31.

[0123] Meanwhile, the first lead screw is threadedly connected with a horizontal push slide 35. Specifically, a first lead screw thread seat 352 is fixedly connected at the bottom center of the horizontal push slide 35, and the first lead screw thread seat 352 is threadedly connected to the first lead screw; first slide seats 353 are fixedly connected at both sides of the bottom of the horizontal push slide 35, and first slide rails slidably connected to the first slide seat 353 are fixedly connected at both sides of the horizontal lead screw frame 32.

[0124] During operation, driven by the lead screw servo motor 31 , the horizontal push slide 35 moves horizontally on the horizontal lead screw frame 32 .

[0125] At the same time, the horizontal pushing assembly also includes push limit rails 34 fixedly mounted on both sides of the horizontal screw frame 32, and a push channel is formed between the push limit rails 34. The side walls of the push limit rails 34 facing each other are sloped surfaces, and a push channel of a V-shaped structure is formed between the push limit rails 34 (the push channel is a structure open up and down, that is, the lower ends of the push limit rails 34 are kept spaced).

[0126] The V-shaped structure design is adopted to realize that during the working process, the rods 2 of different thicknesses can be limited in the pushing channel 341 of the V-shaped structure. The rods 2 with large diameters are limited on the upper side of the pushing channel 341 of the V-shaped structure, while the rods 2 with small diameters are on the lower layer.

[0127] At the same time, a pusher hook plate 351 for pushing the bar material 2 forward is fixedly connected to the top of the horizontal push slide 35 (the shape of the pusher hook plate 351 is: the pusher hook plate 351 includes a base portion fixedly connected to the top position of the horizontal push slide 35, and the base portion is integrally formed with a vertically arranged hook plate portion). The upper end of the pusher hook plate 351 is located in the push channel 341 (the pusher hook plate 351 penetrates the gap between the bottom of the push channel 341 and enters the push channel 341 of the V-shaped structure).

[0128] Both ends of the push-limiting track 34 are respectively fixedly connected with mounting frames 33 , and the mounting frames 33 are fixed on the outer side wall of the horizontal screw frame 32 .

[0129] During operation, the operator turns on the lead screw servo motor 31 , and driven by the lead screw servo motor 31 , pushes the slide 35 horizontally to move and drives the pusher hook plate 351 to push the rod 2 until the rod 2 is pushed into the feed port of the heating furnace 2 .

[0130] Example 7

[0131] like Figure 1-11 As shown, based on the structure of Example 6, in order to horizontally correct the relative position of the bar 2 and the feed port of the heating furnace 2, the above-mentioned lateral movement assembly includes a lateral screw frame 37 vertically arranged with the horizontal screw frame 32, and a second screw 38 is rotatably connected in the lateral screw frame 37 (same as the existing method, bearing frames for rotatably connecting the screws are fixedly connected at both ends of the lateral screw frame 37, and the inner ring of the bearing on the bearing frame is fixed on the second screw 38), and a first handle wheel 381 is fixedly installed on the end of the second screw 38.

[0132] Similarly, the second lead screw 38 is threadedly connected to the transverse slide 36, and the horizontal lead screw frame 32 is fixedly installed on the top of the transverse slide 36. Specifically, the bottom center position of the transverse slide 36 is fixedly connected with a second lead screw thread seat 361 threadedly connected to the second lead screw 38.

[0133] At the same time, the bottom two sides of the transverse slide 36 are respectively fixedly connected with the second slide seat 362, and the top two sides of the transverse screw frame 37 are fixedly connected with the second slide rails slidably connected with the second slide seat 362.

[0134] During operation, the operator manually drives the first handle wheel 381 , and under the drive of the first handle wheel 381 , the transverse slide 36 carries the horizontal pushing assembly to move horizontally.

[0135] Example 8

[0136] like Figure 1-11 As shown, based on the structure of Example 7, in order to achieve the correction of the relative position between the rod 2 and the feed port of the heating furnace 2 at the height position, the above-mentioned lifting and moving assembly includes a lifting platform 39, and the transverse screw frame 37 is fixedly connected to the top position of the lifting platform 39.

[0137] Specifically, the lifting and moving assembly also includes a lifting screw 391 for lifting the lifting platform 39 (the top of the lifting screw 391 is rotatably connected to the bottom center of the lifting platform 39, specifically, the upper end of the lifting screw 391 is a smooth end, and the lifting platform 39 is provided with a groove body rotatably connected to the upper end of the lifting screw 391), and the lifting screw 391 is threadedly connected to the workbench 5 (the workbench 5 serves as the platform of the entire device). During the rotation of the lifting screw 391, the lifting screw 391 rises or falls under the push of the thread.

[0138] At the same time, a driving wheel handle is fixedly connected to the bottom of the lifting screw 391. At the same time, in order to increase the stability of the lifting, the bottom of the lifting platform 39 is fixedly connected with a plurality of slide bars 392 that are slidably connected to the workbench.

[0139] The above method is used to correct the relative position between the bar material 2 and the feed port of the heating furnace 2 during the process of pushing the bar material 2 during the working process.

[0140] Example 9

[0141] like Figure 1-11As shown, based on the structure of Example 8, this embodiment installs upper limit switches on the mounting frames on both sides according to the existing method, that is, the upper end limit sensor 42 is installed on the mounting frame on the side close to the feeding port of the heating furnace 2, and the upper start limit sensor 41 is installed on the mounting frame on the side close to the lead screw servo motor 31. The start limit sensor 41 and the end limit sensor 42 are used to realize that during the working process, when the bar 2 exceeds the distance between the start limit sensor 41 and the end limit sensor 42 due to its excessive length, the sensor alarms, indicating that the bar 2 is too long.

[0142] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A spring bar feeding device, characterized in that: It includes a feeding mechanism, the feeding mechanism includes a horizontal pushing component for pushing the bar material horizontally into the heating furnace, and the horizontal pushing component includes a pushing limit track; The spring bar feeding device also includes a feeding mechanism for feeding the spring bars; The unloading mechanism comprises a bar unloading bin installed at the top of the push-limiting track, and a unloading limiting bin portion is integrally formed at the lower end of the bar unloading bin; The inner side wall of the material unloading limit bin is connected with a plurality of rod material elastic blocking structures distributed on both sides, and the vertically arranged spring strip blocking structures are located above the rod material elastic blocking structures; The unloading limit bin is also equipped with a bar material pull-down discharge structure. During the unloading process, the bar material is pressed down by the bar material pull-down discharge structure, and the bar material at the bottom passes through the elastic resistance of the bar material elastic baffle structure and is discharged one by one. The bar material elastic isolation structure comprises a vertically arranged elastic wheel frame, and the upper and lower ends of the elastic wheel frame are rotatably connected with abutment wheels respectively; The bottom two sides of the bar material at the bottom position are blocked on the two side wheels; An elastic resistance structure is fixedly connected to the contour of the wheel, and the elastic resistance structure includes a plurality of arc-shaped elastic resistance pieces distributed around the circumference, the inner ends of the arc-shaped elastic resistance pieces are fixedly connected to the wheel, and the outer ends of the arc-shaped elastic resistance pieces are fixedly connected to the top positions of the arc-shaped elastic resistance pieces at adjacent positions; During the process of discharging the bar material by downward movement, the bar material presses against the deformed arc-shaped elastic pieces and is elastically pressed out from the gaps between the arc-shaped elastic pieces.

2. The spring bar feeding device according to claim 1, characterized in that: The bar material unloading bin comprises an upper bin portion with a rectangular transverse cross-sectional shape and a middle bin portion with a trapezoidal longitudinal cross-sectional shape, and the unloading limiting bin portion has a rectangular transverse cross-sectional shape; The elastic wheel frame is elastically and slidably connected to the inner side wall of the material unloading limiting bin portion through a spring member.

3. The spring bar feeding device according to claim 2, characterized in that: The left and right side walls of the material unloading limit bin are respectively provided with bar material unloading and unloading structures arranged at intervals on both sides. The bar material pulling-down discharging structure comprises a lower pushing cylinder fixedly mounted on the side wall of the material discharging limiting bin, the piston rod of the lower pushing cylinder is fixedly mounted with a horizontal cylinder, and the piston rod of the horizontal cylinder is fixedly connected with a lower material discharging rod; The material lowering limit bin is provided with a rectangular through opening which cooperates with the lower material lowering rod; During the process of pulling down the bar, the horizontal cylinder pushes the lower push rod into between the bar, and the lower push cylinder drives the horizontal cylinder to descend, and the lower push rod pulls down the bottom bar, and the bar passes through between the wheels under the downward pulling force; During the penetration process, the elastic wheel carrier carries the wheels away from each other to increase the passing space.

4. The spring bar feeding device according to claim 1, characterized in that: The front and rear sides of the left and right side walls of the middle bin are respectively provided with bar material intercepting and feeding structures; The bar stock intercepting and feeding structure comprises an intercepting and feeding cylinder, the piston rod of which is fixedly assembled and connected with an intercepting rod slidably connected to the middle bin; The bars stacked in the bar feeding bin are separated and discharged by the intercepting rod.

5. The spring bar feeding device according to claim 1, characterized in that: The feeding mechanism also includes a lateral moving assembly and a lifting moving assembly for correcting and aligning the positions of bars of different diameters with the feeding port of the heating furnace; the horizontal pushing assembly is installed on the top of the lateral moving assembly, and the lateral moving assembly is installed on the top of the lifting moving assembly; The horizontal pushing assembly also includes a horizontal screw rack, in which a first screw is rotatably connected, and a screw servo motor is installed on the first screw; A horizontal push slide is threadedly connected to the first lead screw, and push limit rails are fixedly installed on both sides of the horizontal lead screw frame, and a push channel is formed between the push limit rails; A pusher straight hook plate for pushing the bar material forward is fixedly connected to the top of the horizontal push slide, and the upper end of the pusher straight hook plate is located in the push channel; The material pushing straight hook plate comprises a base portion fixedly connected to the top position of the horizontal pushing slide, and the base portion is integrally formed with a vertically arranged straight hook plate portion.

6. The spring bar feeding device according to claim 5, characterized in that: A first lead screw thread seat is fixedly connected to the center position of the bottom of the horizontal push slide, and the first lead screw thread seat is threadedly connected to the first lead screw; The bottom two sides of the horizontal push slide are respectively fixedly connected with a first slide seat, and the two sides of the horizontal lead screw frame are respectively fixedly connected with a first slide rail slidably connected to the first slide seat.

7. The spring bar feeding device according to claim 6, characterized in that: The lateral movement assembly comprises a lateral screw frame vertically arranged with respect to the horizontal screw frame, a second screw is rotatably connected in the lateral screw frame, and a first handle wheel is fixedly mounted on the end of the second screw; The second lead screw is threadedly connected to a transverse slide, and the horizontal lead screw frame is fixedly mounted on the top of the transverse slide; A second lead screw threaded seat threadedly connected to a second lead screw is fixedly connected at the bottom center of the transverse slide; The bottom two sides of the transverse slide are respectively fixedly connected with second slide seats, and the top two sides of the transverse lead screw frame are fixedly connected with second slide rails slidably connected with the second slide seats.

8. The spring bar feeding device according to claim 5, characterized in that: The lifting and moving assembly includes a lifting platform, and the transverse screw rack is fixedly connected to the top position of the lifting platform; The lifting and moving assembly also includes a lifting screw for lifting the lifting platform, and the lifting screw is threadedly connected to the workbench; The bottom of the lifting screw is fixedly connected with a driving wheel handle.

9. The spring bar feeding device according to claim 8, characterized in that: The bottom of the lifting platform is fixedly connected with a plurality of sliding rods which are slidably connected to the workbench; The top of the lifting screw is rotatably connected to the bottom center position of the lifting platform.

10. The spring bar feeding device according to claim 1, characterized in that: The arc-shaped elastic plate is fixedly connected with a plurality of arc-shaped distributed resistance-increasing structures; The resistance-increasing structure comprises an elastic boss which is heat-welded on an arc-shaped elastic support piece, and a plurality of elastic convex ridges are integrally formed on the elastic boss.

Images