An extrusion device

Abstract

The present invention provides an extrusion device, including a supporting assembly for driving a product to rotate along its axis, a pressing block that presses against the product from top to bottom, a first driving assembly for driving the pressing block to move in a vertical direction, and a pressing assembly that elastically connects the pressing block to the first driving assembly, wherein the bottom of the pressing block is provided with two first mounting shafts and a second mounting shaft located at the center of the bottom of the two first mounting shafts, a first tungsten steel sleeve is sleeved on the second mounting shaft, and each first mounting shaft is sleeved with at least one bearing. The extrusion device provided by the present invention drives the pressing block to move toward the product on the supporting assembly through the first driving assembly to achieve extrusion of the product; utilizes the supporting assembly to drive the product to rotate along its own axis, cooperates with the pressing block to achieve rolling extrusion of the product, and transmits the force borne by the pressing block when the pressing block extrudes the product to the bearing.

Description

Technical Field

[0001] The invention relates to the technical field of automated processing equipment, and in particular to an extrusion device. Background Art

[0002] Tungsten sponge is the main carrier of an impregnated barium tungsten cathode and is made by powder metallurgy. The voids in the tungsten sponge are used to store the emission material and also serve as a delivery channel for the emission material. After the tungsten sponge is made, diffuse and seamless pores are formed on its outer surface. When making a barium tungsten cathode, it is necessary to extrude the outer circumference of the tungsten sponge to seal all the pores on the outer circumference of the tungsten sponge. However, the extrusion equipment currently on the market cannot be used for the extrusion processing of tungsten sponge. Either it cannot meet the hardness requirements of the tungsten sponge, or it cannot meet the extrusion requirements of the cylindrical structure and product size of the tungsten sponge. Summary of the invention

[0003] The purpose of the present invention is to provide an extrusion device to solve the shortcomings that the existing extrusion equipment is not suitable for the pressurization processing of tungsten sponge, cannot meet the hardness requirements of tungsten sponge, and cannot be suitable for the extrusion requirements of the cylindrical structure and product size of tungsten sponge.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an extrusion device, including a horizontal mounting plate and a vertical mounting plate arranged perpendicular to each other, and also including a supporting assembly fixed on the horizontal mounting plate for driving the product to rotate along its axis, a lower pressing block pressed from top to bottom against the product, a first driving assembly fixed on the vertical mounting plate for driving the lower pressing block to move in a vertical direction, and a lower pressing assembly elastically connecting the lower pressing block to the first driving assembly; the bottom of the lower pressing block is provided with two first mounting shafts parallel to each other and arranged horizontally, and a second mounting shaft located at the center of the bottom of the two first mounting shafts, the second mounting shaft is sleeved with a first tungsten steel sleeve that can abut against the product, and each of the first mounting shafts is sleeved with at least one bearing that can abut against the first tungsten steel sleeve.

[0005] Furthermore, the supporting assembly includes a support base fixed on the horizontal mounting plate and located below the lower pressure block, two support shafts arranged parallel to each other and horizontally on the support base, and a second driving assembly driving the two support shafts to rotate synchronously, each of the support shafts is sleeved with a second tungsten steel sleeve, and the product is placed between the two second tungsten steel sleeves arranged parallel to each other.

[0006] Furthermore, the first driving assembly includes a screw guide rail assembly and a first driving motor fixed on the vertical mounting plate, the screw guide rail assembly is provided with a first sliding block driven by the first driving motor to rise and fall along the vertical direction, and the pressing assembly is fixed on the first sliding block.

[0007] Furthermore, the downward pressure assembly includes a horizontal support plate fixed on the first slider and a vertically arranged linear guide rail located below the horizontal support plate, a second slider is arranged on the linear guide rail, a downward pressure spring is arranged between the second slider and the horizontal support plate, and the downward pressure block is fixed on the second slider.

[0008] Specifically, the pressing assembly also includes a lever hinged on the horizontal support plate, a driving cylinder fixed on the first sliding block and located above the horizontal support plate, and a pressing rod hinged to the pressing block at the bottom end. The upper end of the lever can abut against the driving rod of the driving cylinder, and the lower end of the lever can press the top end of the pressing rod against the horizontal support plate.

[0009] Specifically, the horizontal support plate is provided with a mounting hole for the lever to pass through from top to bottom, a first rotating shaft is provided in the mounting hole, and the lever is hinged to the horizontal support plate via the first rotating shaft.

[0010] Specifically, a mounting groove for the lower pressing block to be embedded is arranged at the bottom of the lower pressing rod, a second rotating shaft is arranged in the mounting groove, and the lower pressing rod is hinged to the top of the lower pressing block through the second rotating shaft.

[0011] Specifically, the pressing assembly further includes a position sensor disposed on a side surface of the first sliding block and a sensing sheet disposed on a side surface of the second sliding block and cooperating with the position sensor.

[0012] Specifically, the supporting assembly further includes a pair of limit seats respectively arranged on both sides of the supporting seat for limiting the axial movement range of the product in the supporting shaft.

[0013] Specifically, the lower pressing block further comprises two side plates respectively arranged on the side surfaces of the lower pressing block, and a second positioning hole for inserting the second mounting shaft is arranged at the bottom of the side plate.

[0014] The beneficial effects of the extrusion device provided by the present invention are:

[0015] (1) The first driving assembly drives the lower pressing block to move toward the product on the supporting assembly to squeeze the product;

[0016] (2) The supporting assembly drives the product to rotate along its own axis, cooperates with the lower pressing block to realize rolling extrusion of the product, and transmits the force borne by the lower pressing block when the lower pressing block extrudes the product to the bearing;

[0017] (3) The pressing block is elastically connected to the first driving assembly through the pressing assembly. The pressing block is first pressed against the product through the pressing assembly so that the relative position between the pressing block and the supporting assembly can be suitable for extruding products of different sizes. The pressing block is then driven downward by the first driving assembly to accurately extrude the product, thereby ensuring the dimensional accuracy of the product and achieving accurate extrusion of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of an extrusion device provided by the present invention;

[0019] Figure 2 is a side view of an extrusion device provided by the present invention;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of a pressing block and a pressing assembly of an extrusion device provided by the present invention;

[0021] Figure 4 It is a cross-sectional view of a pressing block and a pressing assembly of an extrusion device provided by the present invention;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of a lower pressing block and a supporting assembly of an extrusion device provided by the present invention;

[0023] Figure 6 It is a partial cross-sectional view of a lower pressing block and a supporting assembly of an extrusion device provided by the present invention.

[0024] In the figure: 100-extrusion device, 101-horizontal mounting plate, 102-vertical mounting plate, 90-product;

[0025] 10-supporting assembly, 11-supporting seat, 12-supporting shaft, 13-second driving motor, 14-second tungsten steel sleeve, 15-limiting seat, 151-mounting seat, 152-limiting rod, 153-long waist hole;

[0026] 20-lower pressing block, 21-first mounting shaft, 22-second mounting shaft, 23-first tungsten steel sleeve, 24-bearing, 25-side plate, 251-second positioning hole, 26-first fixing hole, 27-second fixing hole, 28-locking hole;

[0027] 30-first drive assembly, 31-first drive motor, 32-screw guide rail assembly, 33-first slider;

[0028] 40-pressing assembly, 41-horizontal supporting plate, 411-mounting hole, 412-first rotating shaft, 413-vertical supporting part, 42-linear guide rail, 43-second sliding block, 44-pressing spring, 45-lever, 451-upper end of lever, 452-lower end of lever, 453-first gasket, 46-driving cylinder, 461-driving rod of driving cylinder, 47-pressing rod, 471-mounting groove, 472-second rotating shaft, 473-second gasket, 48-position sensor, 49-sensing sheet. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] See also Figure 1-Figure 6 , is an extrusion device 100 provided by the present invention. The extrusion device 100 can be applied to various cylindrical workpieces for extrusion processing by rolling extrusion, especially to tungsten sponge, and the pores densely distributed on the outer surface of the tungsten sponge are closed by extruding the outer surface of the tungsten sponge with high pressure.

[0031] like Figure 1 As shown, an extrusion device 100 provided by the present invention includes a horizontal mounting plate 101 and a vertical mounting plate 102 which are vertically arranged to each other, and various components for extruding a product 90 are fixedly mounted by the horizontal mounting plate 101 and the vertical mounting plate 102, thereby realizing extrusion processing of the outer circumferential surface of the cylindrical product 90.

[0032] Furthermore, the extrusion device 100 provided by the present invention includes a support assembly 10 fixed on a horizontal mounting plate 101 for driving the product 90 to rotate along its axis, a lower pressing block 20 pressed from top to bottom against the product 90, a first driving assembly 30 fixed on a vertical mounting plate 102 for driving the lower pressing block 20 to move in a vertical direction, and a lower pressing assembly 40 elastically connecting the lower pressing block 20 to the first driving assembly 30. The support assembly 10 provided by the present invention can not only be used to place the product 90 to be processed, but also can drive the product 90 to rotate therein along the axis of the product 90 itself, so as to realize 360° extrusion of the outer circumference of the product 90 through the rotation of the product 90. The first driving assembly 30 disposed on the vertical mounting plate 102 can drive the pressing assembly 40 and the pressing block 20 fixed thereon to rise and fall in the vertical direction, especially in the process of driving the pressing block 20 downward, the pressing force is applied to the pressing block 20, so that the pressing block 20 can apply a downward force to the product 90 to be processed, and the pressing block 20 and the supporting assembly 10 cooperate with each other to achieve the extrusion processing of the product 90. The pressing assembly 40 can elastically connect the pressing block 20 with the first driving motor 30, so that the pressing block 20 is subjected to the pressing action of the pressing assembly 40 when it does not contact the product 90, and the pressing block 20 is always at the bottom relative to the first driving assembly 30. When the first driving assembly 30 drives the pressing assembly 40 and the pressing block 20 to move downward synchronously until the pressing block 20 contacts the product 90, the product 90 generates a mutual force on the pressing block 20, thereby pushing the pressing block 20 upward, so that the pressing block 20 can achieve a certain upward displacement relative to the first driving assembly 30. The elastic connection of the pressing assembly 40 ends at the elastic space when the pressing block 20 contacts the product 90, and the pressing block 20 is fixed relative to the first driving assembly 30 through the regulation of the pressing assembly 40. Afterwards, the displacement amount of the pressing block 20 that the first driving assembly 30 continues to drive is the pushing amount of the pressing block 20 for the extrusion process on the product 90, so that the first driving assembly 30 in the extrusion device 100 can accurately control the extrusion amount of the pressing block 20 for the product 90, ensuring the stability and consistency of the extrusion process for the product 90.

[0033] Specifically, Figure 3 and Figure 4 FIG. 2 is a schematic diagram of the three-dimensional structure of the pressing block 20 and the pressing assembly 40 provided in the extrusion device 100 provided by the present invention. Figure 3As shown, the bottom of the lower pressing block 20 provided by the present invention is provided with two first installation shafts 21 which are parallel to each other and arranged horizontally, and a second installation shaft 22 which is located at the center of the bottom of the two first installation shafts 21. The second installation shaft 22 is sleeved with a first tungsten steel sleeve 23 which can abut against the product 90, and each first installation shaft 21 is sleeved with at least one bearing 24 which can abut against the first tungsten steel sleeve 23. The top of the lower pressing block 20 is elastically connected to the first driving assembly 30 through the lower pressing assembly 40, and the bottom of the lower pressing block 20 is provided with a component which abuts against the product 90 to be processed and can be rolled and extruded. Figure 6 As shown, the bottom of the lower pressing block 20 is provided with two first mounting shafts 21 and a second mounting shaft 22. The axis of the two first mounting shafts 21 and the second mounting shaft 22 forms a firmly supported isosceles triangle on the vertical plane. The second mounting shaft 22 is located below the center line of the two first mounting shafts 21. A first tungsten steel sleeve 23 is sleeved on the second mounting shaft 22, and contacts the product 90 to be processed through the first tungsten steel sleeve 23. Figure 3 As shown, high-tolerance bearings 24 are provided on the two first installation shafts 21 of the lower pressing block 20. In this embodiment, five parallel bearings 24 are installed on one first installation shaft 21 at the same time. When the product 90 is squeezed with the first tungsten steel sleeve 23, the outer cylindrical surface of the bearing 24 can contact with the first tungsten steel sleeve 23, and is used to withstand the squeezing force exerted by the product 90 on the first tungsten steel sleeve 23. When the bearing 24 is not in contact with the product 90, the first tungsten steel sleeve 23 is sleeved on the second installation shaft 22, and the first tungsten steel sleeve 23 at this time does not contact the several bearings 24 on the two first installation shafts 21 above it. Only when the first tungsten steel sleeve 23 continues to move downward until it contacts the product 90, and as the product 90 rotates, driving the first tungsten steel sleeve 23 to rotate around the second mounting shaft 22, the first tungsten steel sleeve 23 contacts the plurality of bearings 24 located on the first mounting shaft 21, and transmits the interaction force exerted by the product 90 on the first tungsten steel sleeve 23 when the product 90 is squeezed to the bearings 24 of the first mounting shaft 21 through rotation, thereby eliminating the force generated by the product 90 through the bearings 24.

[0034] Specifically, Figure 3As shown, the lower pressing block 20 also includes two side plates 25 respectively arranged on the side of the lower pressing block 20, and the lower pressing block 20 fixes the second installation shaft 22 through the two side plates 25. The top of the lower pressing block 20 is provided with a first fixing hole 26 fixedly connected to the lower pressing assembly 40, and the bottom of the lower pressing block 20 is provided with a second fixing hole 27 fixedly connected to the side plate 25. The top of the side plate 25 is fixed at the second fixing hole 27, and the bottom of the side plate 25 is provided with a second positioning hole 251 for inserting the second installation shaft 22. The side plate 25 is arranged on the side surfaces of the first installation shaft 21 on both sides, and is used to fix the second installation shaft 22 to the bottom of the lower pressing block 20. The side plate 25 can also seal the first installation shaft 21 at the bottom of the lower pressing block 20. The first positioning holes (not shown in the figure) for fixing the two first installation shafts 21 are respectively arranged on the front and rear sides of the bottom of the lower pressing block 20, and the two first installation shafts 21 are parallel to each other and inserted into the first positioning holes for fixing. A plurality of bearings 24 are sleeved on the first installation shaft 21. Then the side plate 25 is fixed to the second fixing hole 27 at the bottom of the lower pressing block 20. By fixing the two side plates 25, the first installation shaft 21 can be sealed in the first positioning hole (not shown in the figure) of the lower pressing block 20. Finally, the second installation shaft 22 is fixed to the second positioning hole 251 of the side plate 25, and the first tungsten steel sleeve 23 is sleeved on the second installation shaft 22. The second installation shaft 22 is set below the center line of the two first installation shafts 21 through the two side plates 25.

[0035] The pressing block 20 provided by the present invention has a plurality of bearings 24 disposed therein to eliminate the force generated by the extrusion of the product 90. When used in conjunction with a tungsten steel sleeve, a greater downward pressure can be applied to the pressing block 20 to extrude the product 90. Thus, the extrusion device 100 provided by the present invention can be suitable for the extrusion processing of products 90 with greater hardness.

[0036] Furthermore, if Figure 2 FIG. 1 is a side view of an extrusion device 100 provided by the present invention. Figure 2 As shown, the supporting assembly 10 includes a support seat 11 fixed on a horizontal mounting plate 101 and located below the lower pressing block 20, two support shafts 12 arranged parallel to each other and horizontally disposed on the support seat 11, and a second driving assembly 13 driving the two support shafts 12 to rotate synchronously, each support shaft 12 is sleeved with a second tungsten steel sleeve 23, and the product 90 is placed between the two second tungsten steel sleeves 23 arranged parallel to each other. The support seat 11 is fixed on the horizontal mounting plate 101 and is located directly below the lower pressing block 20, and the two support shafts 12 are supported and fixed on the horizontal mounting plate 101 by the support seat 11. The front ends of the two support shafts 12 are arranged on the support 11, and the rear ends are transmission-connected to the second driving assembly 13, so that the two support shafts 12 can be driven by the second driving assembly 13 to rotate synchronously. As shown Figure 6 As shown, the cross-section of the support shaft 12 in the support seat 11 is a square structure, and a square through hole is provided at the center of the corresponding second tungsten steel sleeve 23 sleeved on the support shaft 12. When the second tungsten steel sleeve 23 is sleeved on the support shaft 12, the second tungsten steel sleeve 23 can rotate with the rotation of the support shaft 12. The product 90 to be processed is placed between the two second tungsten steel sleeves 23, and the axis of the product 90 is arranged parallel to the axes of the two support shafts 12. When the second tungsten steel sleeves 23 rotate with the support shaft 12, the product 90 located between the two second tungsten steel sleeves 23 can also rotate along the axis of the product 90 itself on the two tungsten steel sleeves 23 with the rotation of the support shaft 12. As shown Figure 6 As shown, in the extrusion device 100 provided by the present invention, the axes of the two support shafts 12 provided in the support assembly 10 are parallel to each other and are arranged horizontally. At the same time, the axes of the two first installation shafts 21 located at the bottom of the lower pressing block 20 are also parallel to each other and are arranged horizontally, and the axis of the second installation shaft 22 located below the two first installation shafts 21 is also parallel to the axis of the first installation shaft 21 and is arranged horizontally. The axis of the first installation shaft 21 and the axis of the second installation shaft 22 in the lower pressing block 20 are also parallel to the axis of the support shaft 12 in the support assembly 10. Moreover, when the product 90 is placed between the two second tungsten steel sleeves 23, the axis of the product 90 itself is parallel to the axis of the first installation shaft 21, the second installation shaft 22 and the axis of the support shaft 12. When the second tungsten steel sleeve 23 rotates with the support shaft 12, the second tungsten steel sleeve 23 acts as a driving wheel to drive the product 90 to rotate along its own axis, and when the first tungsten steel sleeve 23 on the lower pressing block 20 abuts against the product 90, the first tungsten steel sleeve 23 acts as a driven wheel to rotate along the second mounting shaft 22 with the product 90, thereby contacting several bearings 24 located on the first mounting shaft 21 during the rotation of the first tungsten steel sleeve 23.

[0037] Specifically, Figure 5As shown, the support assembly 10 provided by the present invention also includes a pair of limit seats 15 respectively arranged on both sides of the support seat 11 to limit the axial movement range of the product 90 in the support shaft 12. The limit seat 15 includes a mounting seat 151 fixed on the horizontal mounting plate 101 and located on the side of the support seat 11, and a limit rod 152 extending from the mounting seat 151 to the middle of the two support shafts 12. The two limit seats 15 are respectively arranged on the front and rear sides of the support seat 11, and are used to limit the movement of the product 90 placed between the two second tungsten steel sleeves 14 in its own axial direction. The mounting seat 151 in the limit seat 15 is fixed on the horizontal mounting plate 101, and a long waist hole 153 is arranged on the mounting seat 151. The relative position of the mounting seat 151 on the horizontal mounting plate 101 can be adjusted through the long waist hole 153, so that the distance between the two mounting seats 151 can be adjusted through the long waist hole 153, so that the limit seat 15 can be used for processing and limiting products 90 of different lengths. At the same time, the mounting seat 151 of the limit seat 15 extends upward from the bottom of the support seat 11 to between the two second tungsten steel sleeves 14, so the two limit rods 152 are coaxially arranged with the product 90, and the distance between the two limit rods 152 is the distance that the product 90 can move back and forth on the two second tungsten steel sleeves 14.

[0038] Specifically, Figure 1 and Figure 2 As shown, the second drive assembly 13 in the support seat assembly 10 includes a second drive motor disposed on the back of the vertical mounting plate 102, and a transmission belt (not shown in the figure) disposed on the back of the vertical mounting plate 102. The drive rod of the second drive motor is connected to the transmission belt, and the ends of the two support shafts 12 extending backward from the support seat 11 to the rear side of the vertical mounting plate 102 are also connected to the transmission belt, so that the transmission belt drives the second drive motor and the two support shafts 12, so that the two support shafts 12 can be driven by the second drive motor to rotate synchronously.

[0039] Furthermore, if Figure 1 and Figure 2As shown, the first driving assembly 30 in the extrusion device 100 provided by the present invention includes a screw guide rail assembly 32 and a first driving motor 31 fixed on a vertical mounting plate 102, and a first slider 33 driven by the first driving motor 31 to be lifted and lowered in a vertical direction is provided on the screw guide rail assembly 32, and the pressing assembly 40 is fixed on the first slider 33. The first driving motor 31 is fixed to the top of the vertical mounting plate 102, and the first slider 33 located on the screw guide rail assembly 32 is driven to be lifted and lowered in a vertical direction through the screw guide rail assembly 32. On the one hand, the first driving motor 31 can drive the pressing assembly 40 and the pressing block 20 fixed on the first slider 33 to be lifted and lowered in a vertical direction, and on the other hand, it can drive the pressing block 20 to move downward to squeeze the product 90 to be processed on the supporting assembly 10, and provide sufficient downward driving force for the pressing block 20.

[0040] Furthermore, if Figure 3 and Figure 4 As shown, the pressing assembly 40 provided by the present invention includes a horizontal support plate 41 fixed on the first slider 33 and a linear guide rail 42 located below the horizontal support plate 41 and arranged vertically, a second slider 43 is arranged on the linear guide rail 42, a pressing spring 44 is arranged between the second slider 43 and the horizontal support plate 41, and the pressing block 20 is fixed on the second slider 43. The pressing assembly 40 can realize the elastic connection between the pressing block 20 and the first driving assembly 30, and the pressing block 20 is fixed on the second slider 43 of the pressing assembly 40, so that the pressing block 20 can be lifted and lowered along the vertical direction with the linear guide rail 42 in the pressing assembly 40. The horizontal support plate 41 and the linear guide rail 42 in the pressing assembly 40 are both fixed on the first slider 33 of the first driving assembly 30, so that the pressing assembly 40 and the pressing block 20 can be lifted and lowered in the vertical direction with the first driving assembly 30. The pressing assembly 40 is provided with a pressing spring 44 between the horizontal support plate 41 and the second slider 43, so that the pressing spring 44 drives the second slider 43 to move downward to the bottom of the linear guide 42 in the initial state. Thus, the pressing block 20 fixed on the second slider 43 is always at the bottom of the first slider 33 of the first driving assembly 30 in the initial state. When the first slider 33 moves downward driven by the first driving motor 31, the pressing block 20 is always at the bottom of the first slider 33 until the first tungsten steel sleeve 23 of the pressing block 20 abuts against the product 90, and the product 90 applies an upward supporting force to the pressing block 20, so that the pressing block 20 and the second slider 43 on the linear guide 42 move upward synchronously. At this time, under the continuous downward driving of the first driving motor 31, the pressing block 20 moves upward to squeeze the pressing spring 44 between the horizontal support plate 41 and the second slider 43, so that the pressing block 20 is no longer at the bottom of the first slider 33.

[0041] Specifically, Figure 3 As shown, the pressing assembly 40 provided by the present invention further includes a position sensor 48 disposed on the side of the first slider 33 and a sensing sheet 49 disposed on the side of the second slider 43 and cooperating with the position sensor 48. The position sensor 48 and the sensing sheet 49 are respectively located on the first slider 33 of the first driving assembly 30 and the second slider 43 of the pressing assembly 40. Through the real-time detection of the position sensor 48 and the sensing sheet 49, when the pressing block 20 contacts the product 90 and the pressing spring 44 is pressed upward by the second slider 43, the upward movement of the second slider 43 can be detected. In the initial state, the distance between the sensing sheet 49 and the position sensor 48 is fixed. After the pressing block 20 contacts the product 90, when the product 90 pushes the pressing block 20 and the second slider 43 to move upward, the distance between the sensing sheet 49 and the position sensor 48 increases, so that the position sensor 48 can quickly detect and judge that the pressing block 20 contacts the product 90, and then adjust the pressing assembly 40.

[0042] Furthermore, if Figure 3 and Figure 4 As shown, the pressing assembly 40 provided by the present invention further includes a lever 45 hinged on the horizontal support plate 41, a driving cylinder 46 fixed on the first slider 33 and located above the horizontal support plate 41, and a pressing rod 47 whose bottom end is hinged to the pressing block 20, the upper end 451 of the lever 45 can abut against the driving rod 461 of the driving cylinder 46, and the lower end 452 of the lever 45 can press the top end of the pressing rod 47 against the horizontal support plate 41. The lever 45 passes through the horizontal support plate 41, the upper end 451 of the lever 45 can be regulated by the driving cylinder 46 located above the horizontal support plate 41, the lower end 452 of the lever 45 abuts against the pressing rod 47, and through the driving of the lever 45, the top of the pressing rod 47 is pressed against the horizontal support plate 41, thereby fixing the pressing rod 47 to the horizontal support plate 41, that is, the relative fixation between the pressing block 20 and the first slider 33 can be achieved. The lower pressing block 20 can be fixed or separated from the horizontal support plate 41 by the control of the lever 45. When the lower pressing block 20 is separated from the horizontal support plate 41, the lower pressing block 20 can move upward relative to the linear guide rail 42 with the second slider 43 to squeeze the lower pressing spring 44. When the lower pressing block 20 is fixed to the horizontal support plate 41, the lower pressing block 20 is relatively fixed to the first slider 33 in the first driving assembly 30, so that the lower pressing block 20 is driven to move downward synchronously by the drive of the first driving motor 31, and then the amount of displacement of the lower pressing block 20 to squeeze the product 90 downward can be controlled by the amount of displacement of the first driving motor 31.

[0043] Specifically, Figure 4As shown, the horizontal support plate 41 is provided with a mounting hole 411 through which the lever 45 can pass from top to bottom, and a first rotating shaft 412 is provided in the mounting hole 411. The lever 45 is hinged to the horizontal support plate 41 through the first rotating shaft 412. The fulcrum of the lever 45 is the first rotating shaft 412 provided in the mounting hole 411. The lever 45 can rotate relative to the first rotating shaft 412. During the rotation process, the upper end 451 of the lever 45 can move closer to or farther from the first slider 33, and the lower end 452 of the lever 45 can move closer to or farther from the first slider 33. Figure 4 As shown, the upper end 451 of the lever 45 can abut against the driving rod 461 of the driving cylinder 46 located above the horizontal support plate 41. When the position sensor 48 located on the side of the first slider 33 senses that the lower pressing block 20 abuts against the product 90, the position sensor 48 transmits a signal to the driving cylinder 46, and the driving rod 461 of the driving cylinder 46 extends from the driving cylinder 46 and pushes the upper end 451 of the lever 45 away from the first slider 33, thereby driving the lower end 452 of the lever 45 toward the direction of the first slider 33, and then the lower end 452 of the lever 45 contacts the top of the lower pressing plate 47 located below the horizontal support plate 41, and pushes the top of the lower pressing rod 47 onto the horizontal support plate 41 and presses it onto the horizontal support plate 41. A vertical support portion 413 is provided below the horizontal support plate 41, and the vertical support portion 413 is located between the lower pressing rod 47 and the second slider 43. The lower end portion 452 of the lever 45 is provided with a first gasket 453 on the contact surface with the pressing rod 47, and the pressing rod 47 is provided with a second gasket 473 on the contact surface between the top of the lever 45 and the vertical support portion 413. The first gasket 453 and the second gasket 473 are both elastic and have anti-slip and stopping effects when the components are in contact with each other.

[0044] Specifically, Figure 3 and Figure 4 As shown, the bottom of the pressing rod 47 in the pressing assembly 40 provided by the present invention is provided with a mounting groove 471 for the pressing block 20 to be inserted, and a second rotating shaft 472 is provided in the mounting groove 471. The pressing rod 47 is hinged to the top of the pressing block 20 through the second rotating shaft 472. The top of the pressing block 20 is inserted into the mounting groove 471 of the pressing rod 47, and the mounting groove 471 passes through the pressing rod 47 from front to back. The second rotating shaft 472 passes through the mounting groove 471 of the pressing rod 47 from left to right, and fixes the pressing block 20 in the mounting groove 471, so that the pressing block 20 can rotate forward and backward along the axis of the second rotating shaft 472. Figure 5As shown, the top of the lower pressure block 20 is also provided with a locking hole 28 extending to the connecting hole for the second rotating shaft 472 to pass through. The locking piece can be inserted into the locking hole 28 to abut against the second rotating shaft 472, thereby limiting the forward and backward rotation of the lower pressure block 20 relative to the second rotating shaft 472. The lower pressure block 20 is restricted in the mounting groove 471, so the lower pressure block 20 can be fixedly connected to the lower pressure rod 47 through the locking hole 28.

[0045] The working process of an extrusion device 100 provided by the present invention is as follows:

[0046] First, place the product 90 on the two second tungsten steel sleeves 14 of the supporting assembly 10, turn on the second driving assembly 13, and drive the second tungsten steel sleeves 14 to rotate synchronously through the two supporting shafts 12, thereby driving the product 90 to rotate along its own axis on the supporting assembly 10.

[0047] Then, the first driving component 30 is turned on, driving the pressing block 20 and the pressing component 40 on the first slider 33 to move downward synchronously until the first tungsten steel sleeve 23 at the bottom of the pressing block 20 abuts against the rotating product 90. The first driving component 30 continuously drives the first slider 33 to move downward, so that the pressing block 20 and the second slider 43 move upward along the linear guide rail 42, squeezing the pressing spring 44 in the pressing component 40.

[0048] Next, the position sensor 48 in the pressing assembly 40 detects that the induction sheet 49 moves upward with the second slider 43. At this time, the first tungsten steel sleeve 23 of the pressing block 20 contacts the product 90, and the first drive motor 31 stops driving downward, and the drive cylinder 46 is turned on at the same time. The drive rod 461 on the drive cylinder 46 moves the upper end 451 of the lever 45 away from the first slider 33, and the lower end 452 of the lever 25 moves toward the direction close to the first slider 33, pushing the pressing rod 47 to abut against the horizontal support plate 41, that is, fixing the pressing block 20 fixed to the pressing rod 47 and the second slider 43 on the first slider 33, so that the pressing block 20 and the first slider 33 are fixed as one.

[0049] Finally, when the lower pressing block 20 is fixed as a whole with the first slider 33, the first driving motor 31 drives the first slider 33 to move downward again, driving the lower pressing block 20 to squeeze the product 90 downward, so that the downward movement amount of the first driving motor 31 is the propulsion amount of the lower pressing block 20 for squeezing the product 90.

[0050] The extrusion device 100 provided by the present invention drives the lower pressing block 20 to move toward the product 90 on the supporting assembly 10 through the first driving assembly 30 to achieve the extrusion of the product 90; the supporting assembly 10 drives the product 90 to rotate along its own axis, cooperates with the lower pressing block 20 to achieve rolling extrusion of the product 90, and transmits the force borne by the lower pressing block 20 when the lower pressing block 20 extrudes the product 90 to the bearing 24; the lower pressing block 20 and the first driving assembly 30 are elastically connected through the lower pressing assembly 40, and the lower pressing block 20 is firstly abutted against the product 90 through the lower pressing assembly 40, so that the relative position between the lower pressing block 20 and the supporting assembly 10 can be suitable for the extrusion of products 90 of different sizes, and then the lower pressing block 20 is driven downward by the first driving assembly 30 to accurately extrude the product 90, thereby ensuring the dimensional accuracy of the extrusion of the product 90 and achieving accurate extrusion of the product 90.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An extrusion device, comprising a horizontal mounting plate and a vertical mounting plate arranged perpendicular to each other, characterized in that: It also includes a supporting assembly fixed on the horizontal mounting plate for driving the product to rotate along its axis, a pressing block pressed from top to bottom against the product, a first driving assembly fixed on the vertical mounting plate for driving the pressing block to move in a vertical direction, and a pressing assembly elastically connecting the pressing block to the first driving assembly; The first driving assembly includes a screw guide rail assembly and a first driving motor fixed on the vertical mounting plate, the screw guide rail assembly is provided with a first slider driven by the first driving motor to rise and fall along the vertical direction, and the pressing assembly is fixed on the first slider; The pressing assembly comprises a horizontal support plate fixed on the first slider and a vertically arranged linear guide rail located below the horizontal support plate, a second slider is arranged on the linear guide rail, a pressing spring is arranged between the second slider and the horizontal support plate, and the pressing block is fixed on the second slider; The pressing assembly further comprises a lever hinged on the horizontal support plate, a driving cylinder fixed on the first slider and located above the horizontal support plate, and a pressing rod hinged to the pressing block at the bottom end, the upper end of the lever can abut against the driving rod of the driving cylinder, and the lower end of the lever can press the top end of the pressing rod against the horizontal support plate; The bottom of the lower pressing block is provided with two first installation shafts which are parallel to each other and arranged horizontally, and a second installation shaft located at the center of the bottom of the two first installation shafts, the second installation shaft is sleeved with a first tungsten steel sleeve which can abut against the product, and each of the first installation shafts is sleeved with at least one bearing which can abut against the first tungsten steel sleeve; The axes of the two first installation axes and the one second installation axis form a firmly supported isosceles triangle on a vertical plane.

2. An extrusion device according to claim 1, characterized in that: The supporting assembly includes a support base fixed on the horizontal mounting plate and located below the lower pressure block, two support shafts arranged parallel to each other and horizontally on the support base, and a second driving assembly that drives the two support shafts to rotate synchronously, each of the support shafts is sleeved with a second tungsten steel sleeve, and the product is placed between the two second tungsten steel sleeves arranged parallel to each other.

3. An extrusion device according to claim 1, characterized in that: The horizontal support plate is provided with a mounting hole for the lever to pass through from top to bottom, a first rotating shaft is provided in the mounting hole, and the lever is hinged to the horizontal support plate via the first rotating shaft.

4. An extrusion device according to claim 1, characterized in that: The bottom of the pressing rod is provided with an installation groove for the pressing block to be embedded, a second rotating shaft is provided in the installation groove, and the pressing rod is hinged to the top of the pressing block through the second rotating shaft.

5. An extrusion device according to claim 1, characterized in that: The pressing assembly further includes a position sensor disposed on the side of the first sliding block and a sensing sheet disposed on the side of the second sliding block and cooperating with the position sensor.

6. An extrusion device as claimed in claim 2, characterized in that: The supporting assembly also includes a pair of limit seats respectively arranged on both sides of the supporting seat for limiting the moving range of the product in the axial direction of the supporting shaft.

7. An extrusion device according to claim 1, characterized in that: The lower pressing block further comprises two side plates respectively arranged on the side surfaces of the lower pressing block, and a second positioning hole for inserting the second mounting shaft is arranged at the bottom of the side plates.

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