Pushing device with adjustable pushing length and pushing method

Abstract

The application relates to the technical field of metal processing, and discloses a pushing device with adjustable pushing length and a pushing method, which comprises a base, a support column, a supporting frame arranged at the top of the support column, a guide plate fixedly arranged at the top of the supporting frame, a support arranged at the rear side of the top of the base, a conveying belt rotatably arranged in the support through a rotating shaft, a motor arranged on the back of the support, and the motor is used for driving the conveying belt. The right end of the workpiece is abutted against the inclined surface of the positioning block, and the positioning block, the pushing block, the hydraulic rod one and the fixed frame are automatically pushed to move rightward until the left side of the pushing block is flush with and abutted against the abutted end of the workpiece. At this time, the fixed frame, the hydraulic rod one, the pushing block and the positioning block have just completed the automatic giving operation, the distance between the workpiece and the feeding port of the heating furnace is constant, the hydraulic rod one can push the pushing block and the workpiece to push the workpiece once to complete the feeding operation, and therefore the working efficiency of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal processing, in particular to a pusher length adjustable pusher device and a pusher method. BACKGROUND

[0002] The heating furnace is a common heat treatment equipment, which is mainly used for heating or preheating treatment of metal blank, in the prior art, the heating furnace uses the method of intermediate frequency electric heating to inductively heat the metal blank entering the equipment, at this time, it is necessary to use a pusher device to push the metal blank into the heating furnace; in the prior art, the columnar metal blank will pass through two transport lines on the feeding side of the heating furnace, one is a conveyor belt, and the other is a power pushing mechanism mainly composed of a gas cylinder or a hydraulic cylinder, the two transport lines are parallel to each other and communicate with each other, the conveyor belt transports the metal blank along the transport direction to the bottom, and moves to the pushing mechanism under the pushing of the gas cylinder, the gas cylinder in the pushing mechanism will push the blank into the heating furnace, in this process, the gas cylinder is fixed in position and has a fixed telescopic stroke, which will cause that the pusher length cannot be automatically adjusted, when facing metal blanks of different lengths, the pusher length will be insufficient, and the specified length of blank cannot be directly pushed into the heating furnace at one time, which causes the problem of feeding delay on the metal processing line, reduces the working efficiency of the metal production line, and needs to be solved urgently. SUMMARY

[0003] The present application provides a pusher length adjustable pusher device and a pusher method, which solves the problem of unable to automatically adjust the pusher length in the related art.

[0004] The technical scheme of the present application is as follows: a pushing length adjustable pushing device, comprising a base, a support column, a support frame is installed on the top of the support column, a guide plate is fixedly installed on the top of the support frame, a bracket is installed on the top rear side of the base, a conveying belt is rotatably installed in the bracket through a rotating shaft, a motor is installed on the back of the bracket, the motor is used to drive the conveying belt, a guide plate is fixedly installed on the top of the bracket, a hydraulic rod two is installed on the left side of the back of the bracket, an upper feeding plate is fixedly installed on the left side above the conveying belt through the telescopic end of the hydraulic rod two, a connecting column one, a connecting rod and a connecting column two are fixedly connected to the back of the upper feeding plate, a guide groove is formed in the top of the guide plate, a sliding block is slidably installed on the inner wall of the guide groove, a fixed frame, a hydraulic rod one and a pushing block are fixedly connected to the top of the sliding block, the pushing block is fixedly installed on the telescopic end of the hydraulic rod one, a positioning block is fixedly installed on the back of the pushing block, a feeding plate is installed between the bracket and the guide plate, a fixed column is fixedly installed on the inner wall of the support frame, the sliding block is slidably installed on the surface of the fixed column, a limiting column is movably sleeved on the front of the support frame, a limiting plate and an adaptive plate are fixedly connected to the front and back ends of the limiting column in sequence, an extrusion plate is fixedly installed on the back of the adaptive plate, the extrusion plate is adapted to abut against the outer surface of the sliding block, a spring two is movably sleeved on the outer surface of the limiting column, the two ends of the spring two are elastically connected with the support frame and the adaptive plate respectively, a guide cylinder is fixedly connected to the back of the support frame and penetrates into the inner wall of the bracket, an adaptive column and a spring one are movably sleeved in the guide cylinder, a moving plate is fixedly connected to the front end of the adaptive column, the front of the moving plate is fixedly connected with the adaptive plate, one end of the connecting column two is adaptively inserted into the guide cylinder, the two ends of the spring one are elastically connected with the adaptive column and the connecting column two respectively, a spring three is movably sleeved on the outer surface of the fixed column, the two ends of the spring three are elastically connected with the sliding block and the support frame respectively.

[0005] Preferably, the guide plate is located in front of the bracket, the feeding plate is fixedly connected with the left side of the front of the bracket and the middle of the back of the guide plate respectively, and the upper surfaces of the conveying belt and the guide plate are placed with workpieces.

[0006] Preferably, the connecting column one is fixedly connected to the right side of the back of the upper feeding plate, the connecting rod is fixedly connected to the rear end of the connecting column one, the connecting column two is fixedly connected to the right side of the front of the connecting rod, and the front end of the connecting column two is adaptively inserted into the inner wall of the guide cylinder.

[0007] Preferably, an arc surface matched with the sliding block is formed in the side of the adaptive plate facing the sliding block, the extrusion plate is adaptively installed on the arc surface, the adaptive plate and the extrusion plate are extruded forward by the spring two, and the extrusion plate abuts against the outer surface of the sliding block.

[0008] Preferably, the outer surface of the extrusion plate and the slider are made of high friction coefficient material, and the friction force generated by the contact between the extrusion plate and the slider is greater than the reaction force of the hydraulic rod pushing the workpiece.

[0009] Preferably, the top view of the positioning block is a right triangle, and the inclined surface of the positioning block faces the front surface of the bracket.

[0010] Preferably, the high friction coefficient material is made of cast iron, steel, synthetic resin or ceramic material, and the upper side of the moving plate is in clearance fit with the inner wall of the guide groove.

[0011] Preferably, the front surface of the moving plate is provided with another set of arc surfaces opposite to the part of the outer surface of the slider, and a gap is left between the front surface of the moving plate and the slider.

[0012] Preferably, the bottom of the pushing block is provided with a guide block which is slidingly installed in the guide groove, the front surface of the feeding plate is glued with a rubber pad, and a plurality of grooves are formed on the surface of the rubber pad.

[0013] A pushing method of a pushing device with adjustable pushing length, comprising the following steps:

[0014] S1. The left side of the guide plate is butted against the feed inlet of the heating furnace, the position of the device is adjusted, the motor is started, and the transmission belt is driven to rotate, so that the workpiece falling on the surface of the transmission belt moves horizontally along the feed direction from right to left;

[0015] S2. The workpiece moves to the leftmost side of the top of the transmission belt under the drive of the transmission belt and abuts against the feeding plate, at this time, the transmission belt is stopped, the hydraulic rod two is started, and the feeding plate, the connecting column one, the connecting rod and the connecting column two are driven to move forward;

[0016] S3. The connecting column two starts to move forward in the guide cylinder and continuously compresses the spring one, so that the pressure is transmitted to the adapting column, the moving plate and the adapting plate, at this time, the adapting plate starts to drive the extrusion plate to move forward and compresses the spring two;

[0017] S4. Then, the pressure between the extrusion plate and the slider decreases, the friction force decreases, and the slider, the fixed frame, the hydraulic rod one and the pushing block can move freely, when the extrusion plate moves forward to the limit, the connecting column two still continuously compresses the spring one and moves forward;

[0018] S5. Then, the workpiece is pushed forward by the feeding plate and the rubber pad, and enters the upper surface of the guide plate through the feeding plate, when the workpiece enters the surface of the guide plate, the right end of the workpiece abuts against the inclined surface of the positioning block, and generates a rightward pushing force on the positioning block, the pushing block, the hydraulic rod one and the fixed frame as a whole, until the right end of the workpiece is flush with the left side of the pushing block, then the pushing block and the positioning block stop moving to the right;

[0019] S6. Then, the hydraulic rod two drives the feeding plate and the connecting column two to reset, at this time, the connecting column two is retracted, so that the pressure on the spring one gradually decreases, the pressure of the moving plate on the adaptive plate decreases, and the adaptive plate and the extrusion plate are reconnected with the slider under the elastic force of the spring two, and the friction force is generated, at this time, the slider and the fixed frame are in a fixed state;

[0020] S7. Finally, the hydraulic rod one is started, and the pushing block, the positioning block and the workpiece are pushed along the surface of the guide plate into the heating furnace, and the pushing operation of the workpiece is completed.

[0021] The working principle and beneficial effects of the present application are as follows:

[0022] 1. The device is redesigned to realize the function of automatically adjusting the pushing length, the movable fixed frame, the hydraulic rod one and the pushing block are arranged, so that the position of the pushing block abutting against one end of the workpiece is determined by the length of the workpiece, the positioning block on the back of the pushing block is the structure realizing the function, the side of the positioning block facing the support is provided with an inclined surface, when the workpiece on the conveying belt is pushed by the feeding plate and the rubber pad and moves forward, the right end of the workpiece abuts against the inclined surface of the positioning block, and the positioning block, the pushing block, the hydraulic rod one and the fixed frame are automatically pushed to move to the right, until the left side of the pushing block is flush with the abutting end of the workpiece and abuts against it, at this time, the fixed frame, the hydraulic rod one, the pushing block and the positioning block have just completed the automatic displacement operation, the distance between the workpiece and the feeding port of the heating furnace is constant, the hydraulic rod one can push the pushing block and the workpiece to push the workpiece once to complete the feeding operation, thereby improving the working efficiency of the device.

[0023] 2. Then, the device is also designed with the slider, the adaptive plate and the extrusion plate, so that the fixed frame and the hydraulic rod one can be in a free moving state when the workpiece enters the surface of the guide plate, after the feeding plate is reset, the fixed frame and the hydraulic rod one are restored to the fixed state again, the adaptive plate and the extrusion plate arranged in front of the slider are provided with a limiting column for guiding, and the spring two is compressed to apply pressure to the back, so that the extrusion plate and the slider are extruded and a large friction force is generated, when the hydraulic rod two drives the feeding plate and the workpiece to move forward through the connecting column one and the connecting rod, the connecting column two is driven to move forward and continuously compresses the spring one, the spring one can provide buffer for the movement of the connecting column two, and continuously apply pressure to the adaptive column, the moving plate and the moving plate, and gradually offset the pressure from the spring two, so that the pressure of the adaptive plate and the extrusion plate on the slider decreases, the friction force decreases, the workpiece is facilitated to push the pushing block, the fixed frame and the slider to move freely along the fixed column when entering the upper surface of the guide plate, and after the connecting column two is reset to the back along the hydraulic rod two, the hydraulic rod one is fixed by re-compressing the slider for the adaptive plate and the extrusion plate, which is convenient for subsequent pushing feeding.

[0024] 3、Finally, by setting the spring three on the outer surface of the fixed column, the slider drives the fixed frame, hydraulic rod one and the whole of the pushing block always has a tendency to move towards the feeding direction, when the feeding plate drives the connecting column two to move forward, and drives the adaptive plate and the extrusion plate to move forward, and reduces the friction between the extrusion plate and the slider, so that the slider can drive the hydraulic rod one and the pushing block to move freely in the horizontal direction, at this time, the spring three is compressed to generate pressure on the spring three, and drive the pushing block and the positioning block, so that the positioning block can always tightly adhere to the end part of the workpiece from the surface of the conveyor belt, realize the automatic adjustment of the subsequent material return length, by setting the spring one, the connecting column two generates a progressive pressure on the adaptive plate and the extrusion plate during forward movement, such design makes the friction between the extrusion plate and the slider not immediately zero, avoids the slider being pushed by the spring three, so that the inclined surface of the positioning block misses the abutting position with the end part of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0025] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0026] Figure 1 It is a front perspective view of the overall structure of the application;

[0027] Figure 2 It is a top view of the overall structure of the application;

[0028] Figure 3 It is a front cross-sectional view of the overall structure of the application;

[0029] Figure 4 It is a side cross-sectional view of the overall structure of the application;

[0030] Figure 5 It is an enlarged view of the structure at A in the application; Figure 4

[0031] Figure 6 It is a back perspective view of the overall structure of the application;

[0032] Figure 7 It is a separate schematic view of the fixed frame, hydraulic rod one, pushing block, guide block, positioning block, fixed column, slider and moving plate of the application;

[0033] Figure 8 It is a separate schematic view of the support frame, guide plate, fixed column, slider, moving plate and adaptive column of the application.

[0034] ​In the figure: 1, base; 2, support column; 3, support frame; 4, material guide plate; 5, guide groove; 6, fixed frame; 7, hydraulic rod one; 8, pushing block; 81, guide block; 9, positioning block; 10, support; 11, motor; 12, conveyor belt; 13, guide plate; 14, feeding plate; 15, rubber pad; 16, limiting plate; 17, hydraulic rod two; 18, connecting column one; 19, connecting rod; 20, connecting column two; 21, feeding plate; 22, fixed column; 23, sliding block; 24, moving plate; 25, matching column; 26, guide cylinder; 27, spring one; 28, limiting column; 29, matching plate; 30, extrusion plate; 31, spring two; 32, spring three. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor also fall within the scope of protection of the present application.

[0036] Example 1

[0037] The utility model provides a push length adjustable pusher, including base 1, support 2, the top of support 2 is installed with support frame 3, the top of support frame 3 is fixedly installed with guide plate 4, the rear side of base 1 top is installed with support 10, the inside of support 10 is rotatably installed with conveyer belt 12 through pivot, the back of support 10 is installed with motor 11, and motor 11 is used to drive conveyer belt 12, the top of support 10 is fixedly installed with guide plate 13, the left side of back of support 10 is installed with hydraulic rod no. 2 17, and the telescopic end of hydraulic rod no. 2 17 is fixedly installed with the left side of upper plate 14 above conveyer belt 12, the back of upper plate 14 is fixedly connected with connecting column no. 1 18, connecting rod 19 and connecting column no. 2 20, the top of guide plate 4 is provided with guide groove 5, the inner wall of guide groove 5 is slidably installed with sliding block 23, the top of sliding block 23 is fixedly connected with fixed frame 6, hydraulic rod no. 1 7, the telescopic end of hydraulic rod no. 1 7 is fixedly installed with push block 8, the back of push block 8 is fixedly installed with positioning block 9, and the between support 10 and guide plate 4 is installed with feeding plate 21, the inner wall of support frame 3 is fixedly installed with fixed column 22, and sliding block 23 is slidably installed on the surface of fixed column 22, the front face of support frame 3 is movably sleeved with limiting column 28, and the front and rear ends of limiting column 28 are fixedly connected with limiting plate 16 and adaptive plate 29 in proper order, the back of adaptive plate 29 is fixedly installed with extrusion plate 30, and extrusion plate 30 is adapted to abut with the outer surface of sliding block 23, the outer surface of limiting column 28 is movably sleeved with spring no. 2 31, and the both ends of spring no. 2 31 are elastically connected with support frame 3 and adaptive plate 29 respectively, the back of support frame 3 is fixedly connected with guide cylinder 26 that penetrates to the inner wall of support 10, the inside of guide cylinder 26 is movably sleeved with adaptive column 25 and spring no. 1 27, the front end of adaptive column 25 is fixedly connected with moving plate 24, the front face of moving plate 24 is fixedly connected with adaptive plate 29, one end of connecting column no. 2 20 is adapted to be inserted into guide cylinder 26, and the both ends of spring no. 1 27 are elastically connected with adaptive column 25 and connecting column no. 2 20 respectively, the outer surface of fixed column 22 is movably sleeved with spring no. 3 32, and the both ends of spring no. 3 32 are elastically connected with sliding block 23 and support frame 3 respectively;

[0038] The device is redesigned to realize the function of automatic adjustment of pushing length. The movable fixed frame 6, hydraulic rod 7 and pushing block 8 are arranged to make the abutting position of the pushing block 8 and one end of the workpiece determined by the length of the workpiece. The structure realizing the function is the positioning block 9 located at the back of the pushing block 8, which is provided with an inclined surface on the side facing the support 10. When the workpiece on the conveying belt 12 moves forward under the pushing of the feeding plate 14 and the rubber pad 15, the right end of the workpiece can abut against the inclined surface of the positioning block 9, and the positioning block 9, the pushing block 8, the hydraulic rod 7 and the fixed frame 6 are automatically pushed to move to the right until the left side of the pushing block 8 is flush with and abuts against the abutting end of the workpiece. At this time, the fixed frame 6, the hydraulic rod 7, the pushing block 8 and the positioning block 9 have just completed the automatic yielding operation, so that the distance between the workpiece and the feeding port of the heating furnace is constant, the hydraulic rod 7 can push the pushing block 8 and the workpiece to push the workpiece once to complete the feeding operation, thereby improving the working efficiency of the device.

[0039] Then, the device is also designed with the sliding block 23, the adapter plate 29 and the extrusion plate 30, so that the fixed frame 6 and the hydraulic rod 7 can be in a free moving state when the workpiece enters the surface of the guide plate 4. After the feeding plate 14 is reset, the fixed frame 6 and the hydraulic rod 7 are restored to the fixed state. The adapter plate 29 and the extrusion plate 30 located in front of the sliding block 23 are arranged to make the limiting column 28 provide a guide, and the compressed spring 31 is used to press backward to make the extrusion plate 30 and the sliding block 23 extrude and generate a large friction force. When the hydraulic rod 17 drives the feeding plate 14 and the workpiece to move forward, the connecting column 20 is driven to move forward and continuously compress the spring 27. The spring 27 can provide a buffer for the movement of the connecting column 20, and continuously press the adapter column 25, the moving plate 24 and the moving plate 24, and gradually offset the pressure from the spring 31, so that the pressure of the adapter plate 29 and the extrusion plate 30 and the sliding block 23 is reduced, the friction force is reduced, the workpiece is facilitated to push the pushing block 8, the fixed frame 6 and the sliding block 23 to move freely along the fixed column 22 when entering the upper surface of the guide plate 4, and the hydraulic rod 7 is fixed by re-compressing the sliding block 23 of the adapter plate 29 and the extrusion plate 30 after the connecting column 20 is reset backward with the hydraulic rod 17, which is convenient for subsequent pushing feeding.

[0040] Finally, by setting the spring three 32 on the outer surface of the fixed column 22, the slider 23 drives the fixed frame 6, hydraulic rod one 7 and push block 8 always have the tendency to move towards the feeding direction. When the feeding plate 14 drives the connecting column two 20 to move forward, and drives the adapter plate 29 and the extrusion plate 30 to move forward, and reduces the friction between the extrusion plate 30 and the slider 23, so that the slider 23 can drive the hydraulic rod one 7 and the push block 8 to move freely in the horizontal direction. At this time, the spring three 32 is compressed to generate pressure on the spring three 32, and drives the push block 8 and the positioning block 9, so that the positioning block 9 can always tightly adhere to the end of the workpiece from the surface of the conveying belt 12, realizing the automatic adjustment of the subsequent material return length. By setting the spring one 27, the connecting column two 20 generates a progressive pressure on the adapter plate 29 and the extrusion plate 30 during forward movement. Such design makes the friction between the extrusion plate 30 and the slider 23 not immediately zero, avoiding the slider 23 being pushed by the spring three 32, so that the inclined surface of the positioning block 9 misses the abutting position with the end of the workpiece.

[0041] Embodiment 2:

[0042] The guide plate 4 is located in front of the support 10. The feeding plate 21 is fixedly connected to the left side of the front of the support 10 and the middle of the back of the guide plate 4. The conveying belt 12 and the upper surface of the guide plate 4 both place workpieces thereon.

[0043] The guide plate 4 is used to place the workpiece to be pushed. When the hydraulic rod two 17 drives the feeding plate 14 and the rubber pad 15 to push the workpiece forward, the feeding plate 21 fills the blank area between the conveying belt 12 and the guide plate 4, facilitating the transition of the workpiece before feeding.

[0044] Embodiment 3:

[0045] The connecting column one 18 is fixedly connected to the right side of the back of the feeding plate 14. The connecting rod 19 is fixedly connected to the rear end of the connecting column one 18. The connecting column two 20 is fixedly connected to the right side of the front of the connecting rod 19. The front end of the connecting column two 20 is adapted to be inserted into the inner wall of the guide cylinder 26.

[0046] The connecting column one 18 and the connecting rod 19 are used to connect the feeding plate 14 and the connecting column two 20. When the hydraulic rod two 17 drives the feeding plate 14, the connecting column one 18 and the connecting rod 19 to move forward, it drives the connecting column two 20 to move forward in the inside of the guide cylinder 26, continuously compressing the spring one 27, and flexibly transmitting the power from the feeding plate 14 to the adapter plate 29, so that the adapter plate 29 and the extrusion plate 30 can gradually reduce the friction with the outer surface of the slider 23.

[0047] Embodiment 4:

[0048] The side of the adapting plate 29 facing the slider 23 is provided with an arc surface matching the slider 23, and the pressing plate 30 is adaptedly installed on the arc surface. The adapting plate 29 and the pressing plate 30 are pressed forward by the spring 31, and the pressing plate 30 abuts against the outer surface of the slider 23;

[0049] As shown in Figure 5 , the arc surface of the adapting plate 29 is provided with the pressing plate 30. Under the elastic force of the spring 31, the pressing plate 30 abuts against the outer surface of the slider 23 and generates a friction force, so as to fix the slider 23, the fixed frame 6 and the hydraulic rod 7.

[0050] Embodiment 5:

[0051] The outer surface of the pressing plate 30 and the slider 23 are made of high-friction coefficient materials, and the friction force generated by the contact between the pressing plate 30 and the slider 23 is greater than the reaction force of the workpiece pushed by the hydraulic rod 7.

[0052] The outer surface of the pressing plate 30 and the slider 23 are made of high-friction coefficient materials. When the spring 31 presses the adapting plate 29, the pressing plate 30 will generate a great friction force with the outer surface of the slider 23 due to the pressure, so as to limit the movement of the slider 23 and the hydraulic rod 7.

[0053] Embodiment 6:

[0054] The plan view of the positioning block 9 is a right-angled triangle, and the inclined surface of the positioning block 9 faces the front surface of the support 10.

[0055] As shown in Figure 5 , the inclined surface of the positioning block 9 is designed to abut against the right end of the workpiece when moving forward, and generate a rightward pushing force on the positioning block 9 and the pushing block 8. The spring 32 pushes the slider 23 to move in a direction, so that the left side of the pushing block 8 can abut against a section of the workpiece.

[0056] Embodiment 7:

[0057] The high-friction coefficient material is made of cast iron, steel, synthetic resin or ceramic material. The upper side of the moving plate 24 is in gap cooperation with the inner wall of the guide groove 5.

[0058] There are many choices of high-friction coefficient materials, which are determined by the actual staff on the site.

[0059] Embodiment 8:

[0060] Another set of arc surfaces are provided on the front surface of the moving plate 24 facing the outer surface of the slider 23, and a gap is left between the front surface of the moving plate 24 and the slider 23.

[0061] The mobile plate 24 is used to push the adapter plate 29 and the pressing plate 30 forward under the pushing of the connecting column two 20, the spring one 27 and the adapter column 25, and make the pressing plate 30 and the sliding block 23 disengage, so that the sliding block 23, the hydraulic rod one 7 and the pushing block 8 can move freely.

[0062] Embodiment 9:

[0063] The bottom of the pushing block 8 is provided with a guide block 81 which is slidingly installed in the guide groove 5, and the front surface of the feeding plate 14 is glued with a rubber pad 15 which is provided with a plurality of grooves on the surface.

[0064] The guide block 81 is used to assist the pushing block 8 to move horizontally on the upper surface of the guide plate 4 and provide a guide function, and the rubber pad 15 is used to contact the workpiece and provide a buffer for the workpiece.

[0065] A pushing method of a pushing device with adjustable pushing length, comprising the following steps:

[0066] S1. The left side of the guide plate 4 is butted against the feeding port of the heating furnace, the position of the device is adjusted, the motor 11 is started to drive the conveyor belt 12 to rotate, and the workpiece falling on the surface of the conveyor belt 12 moves horizontally along the feeding direction from right to left;

[0067] S2. The workpiece moves to the leftmost side on the top of the conveyor belt 12 under the driving of the conveyor belt 12 and abuts against the feeding plate 14, at this time, the conveyor belt 12 is stopped, the hydraulic rod two 17 is started to drive the feeding plate 14, the connecting column one 18, the connecting rod 19 and the connecting column two 20 to move forward;

[0068] S3. The connecting column two 20 starts to move forward in the guide cylinder 26 and continuously compresses the spring one 27 to transmit the pressure to the adapter column 25, the mobile plate 24 and the adapter plate 29, at this time, the adapter plate 29 starts to drive the pressing plate 30 to move forward and compress the spring two 31;

[0069] S4. Then, the pressure between the pressing plate 30 and the sliding block 23 is reduced, the friction force is reduced, and the sliding block 23, the fixed frame 6, the hydraulic rod one 7 and the pushing block 8 can move freely, when the pressing plate 30 moves forward to the limit, the connecting column two 20 still continuously compresses the spring one 27 and moves forward;

[0070] S5. Then, the workpiece is pushed forward by the feeding plate 14 and the rubber pad 15 and enters the upper surface of the guide plate 4 through the feeding plate 21, when the workpiece enters the surface of the guide plate 4, the right end thereof abuts against the inclined surface of the positioning block 9 and generates a rightward pushing force on the positioning block 9, the pushing block 8, the hydraulic rod one 7 and the fixed frame 6, until the right end of the workpiece is flush with the left side of the pushing block 8, the pushing block 8 and the positioning block 9 stop moving rightward;

[0071] S6. Then, the hydraulic rod two 17 drives the feeding plate 14 and the connecting column two 20 to reset. At this time, the connecting column two 20 gradually reduces the pressure on the spring one 27 due to retraction, the moving plate 24 reduces the pressure on the adaptive plate 29, and the adaptive plate 29 and the extrusion plate 30 are reconnected with the sliding block 23 under the elastic force of the spring two 31 and generate friction. At this time, the sliding block 23 and the fixed frame 6 are in a fixed state;

[0072] S7. Finally, the hydraulic rod one 7 is started, and the pushing block 8, the positioning block 9 and the workpiece are pushed along the surface of the guide plate 4 into the heating furnace, and the pushing and feeding operation of the workpiece is completed.

[0073] The above is only a preferred embodiment of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A push length-adjustable pushing device, comprising a base (1), a support column (2), a top of the support column (2) being provided with a support frame (3), a top of the support frame (3) being fixedly provided with a guide plate (4), a rear side of the top of the base (1) being provided with a bracket (10), an inside of the bracket (10) being rotatably provided with a conveying belt (12) through a rotating shaft, a back of the bracket (10) being provided with a motor (11), the motor (11) being used for driving the conveying belt (12), characterized in that, The top of the support (10) is fixedly provided with a guide plate (13), the left side of the back of the support (10) is provided with a hydraulic rod two (17), the telescopic end of the hydraulic rod two (17) is fixedly provided with a feeding plate (14) above the left side of the conveying belt (12), the back of the feeding plate (14) is fixedly connected with a connecting column one (18), a connecting rod (19) and a connecting column two (20), the top of the guide plate (4) is provided with a guide groove (5), the inner wall of the guide groove (5) is slidably provided with a sliding block (23), the top of the sliding block (23) is fixedly connected with a fixed frame (6) and a hydraulic rod one (7), the telescopic end of the hydraulic rod one (7) is fixedly provided with a pushing block (8), the back of the pushing block (8) is fixedly provided with a positioning block (9), the support (10) and the guide plate (4) are provided with a feeding plate (21), the inner wall of the support frame (3) is fixedly provided with a fixed column (22), the sliding block (23) is slidably arranged on the surface of the fixed column (22), the front of the support frame (3) is movably sleeved with a limiting column (28), the front and back ends of the limiting column (28) are sequentially fixedly connected with a limiting plate (16) and an adaptive plate (29), the back of the adaptive plate (29) is fixedly provided with a pressing plate (30), the pressing plate (30) is adapted to abut against the outer surface of the sliding block (23), the outer surface of the limiting column (28) is movably sleeved with a spring two (31), the two ends of the spring two (31) are elastically connected with the support frame (3) and the adaptive plate (29) respectively, the back of the support frame (3) is fixedly connected with a guide cylinder (26) penetrating through the inner wall of the support (10), the guide cylinder (26) is movably sleeved with an adaptive column (25) and a spring one (27) inside, the front end of the adaptive column (25) is fixedly connected with a moving plate (24), the front of the moving plate (24) is fixedly connected with the adaptive plate (29), one end of the connecting column two (20) is adaptively inserted into the guide cylinder (26), the two ends of the spring one (27) are elastically connected with the adaptive column (25) and the connecting column two (20) respectively, the outer surface of the fixed column (22) is movably sleeved with a spring three (32), the two ends of the spring three (32) are elastically connected with the sliding block (23) and the support frame (3) respectively, the connecting column one (18) is fixedly connected with the right side of the back of the feeding plate (14), the connecting rod (19) is fixedly connected with the rear end of the connecting column one (18), the connecting column two (20) is fixedly connected with the right side of the front of the connecting rod (19), the front end of the connecting column two (20) is adaptively inserted into the inner wall of the guide cylinder (26), one side of the adaptive plate (29) facing the sliding block (23) is provided with an arc surface adapted to the sliding block (23), the pressing plate (30) is adaptively installed on the arc surface, the adaptive plate (29) and the pressing plate (30) are extruded forward by the spring two (31), and the pressing plate (30) abuts against the outer surface of the sliding block (23).

2. A pusher device according to claim 1, wherein, The guide plate (4) is located in front of the support (10), and the two sides of the feeding plate (21) are fixedly connected with the left side of the front face of the support (10) and the middle part of the back face of the guide plate (4) respectively, and the upper surfaces of the conveying belt (12) and the guide plate (4) are provided with workpieces.

3. A pusher device according to claim 2, wherein, The outer surfaces of the extrusion plate (30) and the sliding block (23) are made of high-friction coefficient materials, and the friction force generated by the contact between the extrusion plate (30) and the sliding block (23) is greater than the reaction force suffered by the workpiece pushed by the hydraulic rod (7).

4. A pusher device according to claim 3, wherein, The top view of the positioning block (9) is a right triangle, and the inclined surface of the positioning block (9) faces the front face of the support (10).

5. A pusher device according to claim 4, wherein, The high-friction coefficient material is made of cast iron, steel, synthetic resin or ceramic material, and the upper side of the moving plate (24) is in gap cooperation with the inner wall of the guide groove (5).

6. A pusher device according to claim 5, wherein, Another set of arc surfaces is arranged on the front face of the moving plate (24) opposite to the outer surface of the sliding block (23), and a gap is left between the front face of the moving plate (24) and the sliding block (23).

7. A pusher device according to claim 6, wherein, The bottom of the pushing block (8) is provided with a guide block (81) which is slidingly installed in the guide groove (5), and the front face of the feeding plate (14) is glued with a rubber pad (15), and a plurality of grooves are arranged on the surface of the rubber pad (15).

8. The method of claim 7, wherein, The method comprises the following steps: S1. The left side of the guide plate (4) is butted with the feeding port of the heating furnace, the position of the device is adjusted, the motor (11) is started, and the conveying belt (12) is driven to rotate, so that the workpiece on the surface of the conveying belt (12) moves horizontally along the feeding direction from right to left; S2. The workpiece is driven by the conveying belt (12) to move to the leftmost side of the top of the conveying belt (12) and abuts against the feeding plate (14), at this time, the conveying belt (12) is stopped, the hydraulic rod (17) is started, and the feeding plate (14), the connecting column (18), the connecting rod (19) and the connecting column (20) are driven to move forward; S3. The connecting column (20) starts to move forward in the guide cylinder (26) and continuously compresses the spring (27), so that the pressure is transmitted to the adaptive column (25), the moving plate (24) and the adaptive plate (29), at this time, the adaptive plate (29) starts to drive the extrusion plate (30) to move forward and compresses the spring (31); S4. Then, the pressure between the extrusion plate (30) and the sliding block (23) is reduced, the friction force is reduced, and the sliding block (23), the fixed frame (6), the hydraulic rod (7) and the pushing block (8) can move freely, when the extrusion plate (30) moves forward to the limit, the connecting column (20) still continuously compresses the spring (27) and moves forward. S5. Then, the workpiece is pushed forward by the feeding plate (14), rubber pad (15), and enters the upper surface of the guide plate (4) through the feeding plate (21). When the workpiece enters the surface of the guide plate (4), the right end thereof abuts against the inclined surface of the positioning block (9), and generates a rightward pushing force on the positioning block (9), pushing block (8), hydraulic rod one (7) and fixed frame (6) as a whole, until the right end of the workpiece is flush with the left side of the pushing block (8), the pushing block (8) and positioning block (9) no longer move to the right; S6. Then, the hydraulic rod two (17) drives the feeding plate (14) and connecting column two (20) to reset. At this time, the connecting column two (20) gradually reduces the pressure on the spring one (27) due to retraction, the moving plate (24) reduces the pressure on the adaptive plate (29), and the adaptive plate (29) and extrusion plate (30) abut against the sliding block (23) again under the elastic force of the spring two (31) and generate friction. At this time, the sliding block (23) and the fixed frame (6) are in a fixed state; S7. Finally, start the hydraulic rod one (7), and push the pushing block (8), positioning block (9) and workpiece along the surface of the guide plate (4) into the heating furnace to complete the pushing and feeding operation of the workpiece.

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