Slipform brick press molding apparatus and press molding method

Abstract

The present application relates to the technical field of brick pressing forming, in particular to a sliding plate brick pressing forming device and a pressing forming method thereof, the device comprising a gantry frame, a hydraulic column lifting in the gantry frame, a switching box device connected to the bottom end of the hydraulic column, an impact mold connected to the bottom end of the switching box device, and a feeding mold arranged below the impact mold. Compared with the continuous rigid impact of the mold on the brick raw material during the production of the traditional sliding plate brick, the internal stress of the raw material is uneven, which reduces the compressive strength of the produced sliding plate brick. The present application continuously impacts the brick raw material by the impact mold, the initial impact mold receives a strong flexible thrust, which gradually changes into a weak flexible thrust, effectively eliminating the internal stress of the brick raw material, and finally the brick raw material is accurately formed by the impact of the rigid thrust. After the processing is completed, the impact mold is automatically switched from rigid to flexible by the thrust, preparing for the next production of sliding plate brick.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of brick pressing forming, in particular to a slide plate brick pressing forming device and a pressing forming method thereof. BACKGROUND

[0002] The slide plate brick is a key refractory material in the slide nozzle system of the continuous casting process, mainly used for controlling the flow of molten steel, and the core function is to realize the opening and closing of the molten steel through the close cooperation of the upper and lower two bricks, while bearing the scouring and thermal stress impact of the high-temperature molten steel.

[0003] The production process of the slide plate brick mainly includes raw material preparation, forming, firing, impregnation treatment and post-processing, and the raw materials are sintered alumina, synthetic mullite, high plasticity clay and chromium oxide and other refractory materials. The hydraulic pressing device is used for brick forming processing, the prepared raw materials are poured into the lower mold, then the upper mold is lowered by the hydraulic pressing device, the upper mold repeatedly presses and impacts the raw materials, the crushed materials are gradually tightly combined under repeated impact, and finally the brick body is hardened to form, then the brick body is taken out for subsequent firing treatment.

[0004] The upper mold of the hydraulic pressing device of the traditional technology rigidly impacts the raw materials, and this impact mode promotes the internal severe dislocation of the raw materials, resulting in uneven structure, cracking or insufficient strength, and even causes surface cracks or internal cavities, affecting the final strength; the pressed brick body has poor texture and uneven internal density, which further causes the insufficient compressive strength of the fired brick body.

[0005] If the initial flexible impact is adopted in the brick pressing forming process, the raw material components can be better combined, the internal bubbles and impurities can be effectively discharged, the cracking problem caused by gas expansion during the firing process can be avoided, the brick body with more compact structure and stronger toughness can be formed, the subsequent firing is facilitated, the stress concentration during forming is reduced, the cracking risk is reduced, and it is especially suitable for complex-shaped products, and finally the rigid impact is used to accurately shape the brick body. SUMMARY

[0006] The purpose of the present application is to provide a slide plate brick pressing forming device and a pressing forming method thereof to solve the problem of uneven internal stress of raw materials caused by rigid impact in the background technology.

[0007] To achieve the above purpose, the present application provides the following technical scheme: a slide plate brick pressing forming device, comprising a gantry frame, a hydraulic column lifting in the gantry frame, a switching box device connected to the bottom end of the hydraulic column, an impact mold connected to the bottom end of the switching box device, and a feeding mold arranged below the impact mold, the feeding mold is filled with brick raw materials, the impact mold repeatedly presses and impacts the brick raw materials to harden and form them, and the pushing force mode provided by the switching box device for the impact mold is changed from flexible to rigid during the process, the switching box device comprises:

[0008] A square box, the hydraulic column bottom end sliding through the round hole opened in the square box top, the square box bottom end and the impact die fixed connection, the T rail column fixed on the both sides of the portal frame, and the T rail column clamped into the sliding groove opened on the square box outer wall;

[0009] The T disc part and the rigid-flexible disc part arranged in the square box, the T disc part upper end and the hydraulic column fixed connection, the T disc part lower end contacting and pressing the rigid-flexible disc part;

[0010] The multi-stage device, the release device and the pressure device arranged in the square box, the multi-stage device one end and the rigid-flexible disc part transmission connection, and the other end and the pressure device transmission connection, the release device for intercepting and controlling the multi-stage device, and then controlling the flexible to rigid switching speed of the force provided to the impact die.

[0011] The rigid-flexible disc part includes the stake shaft fixed in the square box, the ring plate table movably sleeved outside the stake shaft, the plurality of rigid-flexible strips uniformly arranged on the upper end edge of the ring plate table, and the outer gear ring fixedly sleeved at the lower end of the ring plate table.

[0012] The T disc part is annularly arranged with a plurality of transverse pressing rods, the rigid-flexible strip includes the vertical column hard segment fixedly embedded in the ring plate table and the arc-shaped elastic column segment vertically fixed at the top end of the vertical column hard segment, the upper surface of the arc-shaped elastic column segment is in contact with the transverse pressing rod, the lower inclined surface of the arc-shaped elastic column segment is designed to have different elasticity at different positions, and the closer to the vertical column hard segment, the smaller the local elasticity.

[0013] The multi-stage device includes the first worm gear engaged with the outer gear ring for transmission, the range increasing disc gear driven by the first worm gear at one end, the release gear driven by the small gear fixed in the middle of the range increasing disc gear, the release shaft fixed in the middle of the release gear, and the row of gear position discs fixedly sleeved on the release shaft.

[0014] The gear position disc includes the ring plate and the plurality of stopping teeth uniformly arranged on the edge of the ring plate, the number of stopping teeth on each gear position disc of the row of gear position discs is different, and each gear position disc controls the number of times of intermittent stays in the middle gap of one rotation of the release shaft.

[0015] The first worm gear end is fixed with the gear to engage with the range increasing disc gear for transmission, the concave frame is installed in the square box to support the first worm gear, and the shaft body is further fixed in the middle of the range increasing disc gear to be movably sleeved in the circular groove opened in the square box.

[0016] The release device includes the release device for clamping the gear position disc, the outer driving device installed on the outer surface of the square box, and the lead-in shaft transmission between the outer driving device and the release device, the waist position frame is fixed in the square box to limit and support the lead-in shaft, and the V-shaped elastic sheet is fixed on the T rail column to one-way clamp the outer driving device.

[0017] The release device includes an integrated frame fixed on a square box, a lead screw and a slide rod supported on the integrated frame, a T-shaped frame that slides directionally on the integrated frame, a traveling seat with one end penetrated by the lead screw, and a chuck assembly connected to one side of the traveling seat. The guide shaft is driven by a fixed gear that meshes with a rack on the T-shaped frame. The slide rod slides through a through hole opened on the traveling seat.

[0018] The chuck assembly includes a traveling frame fixed on a traveling seat, a modulation plate that slides through a hole in the traveling frame, an amplifying shaft supported on the traveling frame, an amplifying gear fixed at one end of the amplifying shaft, a dual control frame that drives on one side of the amplifying gear, and a damping ring and a release cylinder fixed on the dual control frame. One end of the release cylinder is slidably inserted into a round bar fixed on the traveling seat, and the other end of the release cylinder is blocked on one side of a stop tooth of the stop gear plate, and a damping ring is distributed on the other side of the stop tooth. One end of the dual control frame is inserted into a sliding hole in the traveling seat, and the gear fixed at the other end of the amplifying shaft meshes with a rack on the modulation plate. A straight column is provided on the T-shaped frame to slide through a square hole in the modulation plate, and a rack is provided on the dual control frame to mesh with the amplifying gear.

[0019] The external drive device includes a lap shaft that drives perpendicularly to the input shaft, a concave seat fixed on the outer wall of the square box, a quick-acting plate that slides in the concave seat, and a return spring for pushing the quick-acting plate to reset. One end of the return spring is fixed on the concave seat. The external drive device makes misaligned contact with the V-shaped spring during the downward phase of the square box. During the upward phase of the external drive device, it encounters the V-shaped spring. The end of the V-shaped spring is provided with an arc surface to strike the protrusion provided on the quick-acting plate. One end of the lap shaft extends to the outside of the square box, and a gear is fixed at the end to mesh with the rack provided on the quick-acting plate for transmission.

[0020] The presser includes a main shaft with one end coaxially fixedly connected to the release shaft, a one-way bearing fixedly sleeved at the other end of the main shaft, a mainspring with a fixed outer sleeve on the one-way bearing, an outer ring gear with a fixed outer sleeve on the mainspring, a side shaft driven by one side of the outer ring gear, an inner drive shaft driven perpendicularly to the side shaft, and an end frame for simultaneously supporting the side shaft and the main shaft. The end frame is fixed on the square box, one end of the inner drive shaft extends to the outside of the square box, and a gear is fixed at the end of the inner drive shaft to mesh with a rack fixed on the T-shaped rail column. The main shaft supports a back plate provided on one side of the outer ring gear.

[0021] The method for pressing and molding skateboard bricks includes the following steps:

[0022] Step 1: Set data before pressing and processing, set the number of times the hydraulic column rises and falls and the range of each rise and fall, and set the speed at which the flexible thrust in the switching box device switches to rigid thrust;

[0023] Step 2: During the pressing process, the impact die impacts the brick raw material fragments added to the feeding die a set number of times, causing the brick raw material to harden and take shape.

[0024] Step three: during the continuous impact of the impact mold, the switching box device gradually changes the pushing mode of the impact mold from strong flexibility to weak flexibility, and finally to rigidity;

[0025] Step four: after the continuous impact of the impact mold is completed, the switching box device automatically changes the pushing mode of the impact mold from rigidity to the initial strong flexibility, and then proceeds to the next round of brick pressing forming work.

[0026] Compared with the prior art, the beneficial effects of the present application are:

[0027] 1. Compared with the continuous rigid impact of the mold on the brick raw material during the production of traditional sliding plate bricks, the internal stress of the raw material is uneven, which reduces the compressive strength of the sliding plate bricks. The present application continuously impacts the brick raw material with the impact mold, the initial impact mold is subjected to strong flexible thrust, which gradually changes to weak flexible thrust, effectively eliminating the internal stress of the brick raw material, and finally the brick raw material is accurately formed by the impact of rigid thrust. After the processing is completed, the impact mold is automatically switched from rigid to flexible by the thrust, preparing for the next production of sliding plate bricks.

[0028] 2. The number of lifting impacts of the impact mold is controlled by a gear disc, and during one revolution of the gear disc, the pushing force of the switching box device on the impact mold changes from strong flexibility to weak flexibility, and then to rigidity, and finally back to strong flexibility. Different gear discs control different conversion speeds, thereby adapting to different impact frequencies of the corresponding impact mold. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The present application is a structural schematic diagram.

[0030] Figure 2 The present application is a position schematic diagram of the switching box device.

[0031] Figure 3 The present application is a structural schematic diagram of the switching box device.

[0032] Figure 4 The present application is a position schematic diagram of the rigid-flexible disc.

[0033] Figure 5 The present application is a position schematic diagram of the pressure generator.

[0034] Figure 6 The present application is a structural schematic diagram of the rigid-flexible disc.

[0035] Figure 7 The present application is a structural schematic diagram of the rigid-flexible strip.

[0036] Figure 8 The present application is a structural schematic diagram of the multi-stage device.

[0037] Figure 9 The present application is a position schematic diagram of the first worm.

[0038] Figure 10 is a schematic view of the release device structure.

[0039] Figure 11 is a schematic view of the release device structure.

[0040] Figure 12 is a schematic view of the chuck assembly structure.

[0041] Figure 13 is a schematic view of the outer drive device structure.

[0042] Figure 14 is a schematic view of the pressure device structure.

[0043] In the figure: gantry frame 1, hydraulic column 2, switching box device 3, impact die 4, discharge die 5, square box 6, T-shaped rail column 7, T-shaped disc part 8, horizontal pressure rod 81, rigid-flexible disc part 9, multi-stage device 10, release device 11, pressure device 12, first worm 13, range-extending disc gear 14, release gear 15, release shaft 16, gear teeth disc 17, pile shaft 18, ring plate table 19, rigid-flexible strip 20, vertical column rigid segment 201, arc-shaped elastic column segment 202, outer gear ring 21, release device 22, lead-in shaft 23, outer drive device 24, V-shaped elastic sheet 25, waist position frame 26, slide rod 27, integrated frame 28, T-shaped frame 29, lead screw 30, wandering seat 31, chuck assembly 32, damping ring 33, release cylinder 34, double-control frame 35, amplification gear 36, amplification shaft 37, accompanying frame 38, modulation plate 39, concave seat 40, lapping shaft 41, quick-moving plate 42, return elastic sheet 43, inner drive shaft 44, main shaft 45, side position shaft 46, end position frame 47, outer ring gear 48, one-way bearing 49, spring 50. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in 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 technical solutions in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0045] Please refer to Figures 1 to 14The application provides a technical scheme: a slide plate brick pressing forming device, which comprises a gantry frame 1, a hydraulic column 2 that is lifted in the gantry frame 1, a switching box device 3 that is connected to the bottom end of the hydraulic column 2, an impact mold 4 that is connected to the bottom end of the switching box device 3, and a discharging mold 5 that is arranged below the impact mold 4, the discharging mold 5 is filled with brick raw materials, the impact mold 4 repeatedly presses and impacts the brick raw materials to make them harden and form, and in the process, the switching box device 3 provides a pushing force for the impact mold 4, and the pushing force mode is changed from flexible to rigid, the upper end of the hydraulic column 2 is connected with a hydraulic lifting driving mechanism in the prior art, and the hydraulic lifting driving mechanism is installed above the gantry frame 1, the switching box device 3 comprises:

[0046] A square box 6, the bottom end of the hydraulic column 2 slides through a circular hole that is formed in the top of the square box 6, the bottom end of the square box 6 is fixedly connected with the impact mold 4, T-shaped rail columns 7 are fixedly arranged on the gantry frame 1 on the two sides of the square box 6, and the T-shaped rail columns 7 are clamped into sliding grooves that are formed in the outer wall of the square box 6.

[0047] A T-shaped disc part 8 and a rigid-flexible disc part 9 that are arranged in the square box 6, the upper end of the T-shaped disc part 8 is fixedly connected with the hydraulic column 2, and the lower end of the T-shaped disc part 8 contacts and presses the rigid-flexible disc part 9.

[0048] A multi-stage device 10, a release device 11 and a pressure device 12 that are also arranged in the square box 6, one end of the multi-stage device 10 is drivingly connected with the rigid-flexible disc part 9, and the other end is drivingly connected with the pressure device 12, the release device 11 is used for intercepting and controlling the multi-stage device 10, so as to control the flexible-to-rigid switching speed of the pushing force provided for the impact mold 4, the brick fragments gradually harden and form after being impacted for many times, raw materials of different components are correspondingly used to make different types of slide plate bricks, or raw materials of different amounts are used to make slide plate bricks of different sizes, that is, different slide plate bricks require different numbers of impacts in the raw material impact forming process, for example, a slide plate brick requires ten impacts, after the first impact is completed by the first lowering of the impact mold 4, the impact mold 4 is lifted, and the first flexible-to-rigid switching is correspondingly completed, and the control is recursively performed until the tenth impact of the impact mold 4, during which nine flexible-to-rigid switchings are completed, the switching of the impact mold 4 after the tenth impact is reset switching, that is, the switching is changed from rigid to flexible, and the next work is waited for, in summary, in the process in which the switching box device 3 applies the pushing force to the impact mold 4, the flexible-to-rigid change is completed through nine switchings, the flexible-to-rigid switching times of different slide plate bricks are different, the more the times are, the longer the time required is, and then the flexible-to-rigid switching speed is slower.

[0049] Reference is made to the accompanying drawings Figure 6 It is understood that the rigid-flexible disc part 9 comprises a stake shaft 18 that is fixed in the square box 6, a ring plate table 19 that is movably sleeved outside the stake shaft 18, a plurality of rigid-flexible strips 20 that are uniformly arranged around the upper end edge of the ring plate table 19, and an outer gear ring 21 that is fixedly sleeved at the lower end of the ring plate table 19.

[0050] Reference is made to the accompanying drawings Figure 7It is understood that the T disc piece 8 is provided with a plurality of horizontal pressure bars 81, the rigid-flexible strip 20 includes a vertical hard segment 201 embedded in the ring plate table 19 and an arc-shaped elastic column segment 202 vertically fixed at the top end of the vertical hard segment 201, the upper surface of the arc-shaped elastic column segment 202 is in contact with the horizontal pressure bar 81, and the lower surface of the arc-shaped elastic column segment 202 is designed to have different elasticities at different positions, and the closer to the vertical hard segment 201, the smaller the elasticity.

[0051] The hydraulic column 2 drives the T disc piece 8 to move downward, and then drives the rigid-flexible disc piece 9 as a whole through the horizontal pressure bar 81, and then drives the impact mold 4 through the square box 6, the impact mold 4 is driven to move downward to impact the brick raw material, the hydraulic column 2 drives the T disc piece 8 to move upward, the T disc piece 8 drives the square box 6 to move upward, and the square box 6 drives the impact mold 4 to move upward, so that the hydraulic column 2 drives the impact mold 4 to move downward once for each time of lifting.

[0052] The T disc piece 8 is provided with a plurality of horizontal pressure bars 81, the rigid-flexible strip 20 includes a vertical hard segment 201 embedded in the ring plate table 19 and an arc-shaped elastic column segment 202 vertically fixed at the top end of the vertical hard segment 201, the upper surface of the arc-shaped elastic column segment 202 is in contact with the horizontal pressure bar 81, and the lower surface of the arc-shaped elastic column segment 202 is designed to have different elasticities at different positions, and the closer to the vertical hard segment 201, the smaller the elasticity. Figure 7 The T disc piece 8 is provided with a plurality of horizontal pressure bars 81, the rigid-flexible strip 20 includes a vertical hard segment 201 embedded in the ring plate table 19 and an arc-shaped elastic column segment 202 vertically fixed at the top end of the vertical hard segment 201, the upper surface of the arc-shaped elastic column segment 202 is in contact with the horizontal pressure bar 81, and the lower surface of the arc-shaped elastic column segment 202 is designed to have different elasticities at different positions, and the closer to the vertical hard segment 201, the smaller the elasticity.

[0053] The T disc piece 8 is provided with a plurality of horizontal pressure bars 81, the rigid-flexible strip 20 includes a vertical hard segment 201 embedded in the ring plate table 19 and an arc-shaped elastic column segment 202 vertically fixed at the top end of the vertical hard segment 201, the upper surface of the arc-shaped elastic column segment 202 is in contact with the horizontal pressure bar 81, and the lower surface of the arc-shaped elastic column segment 202 is designed to have different elasticities at different positions, and the closer to the vertical hard segment 201, the smaller the elasticity. Figure 8 The T disc piece 8 is provided with a plurality of horizontal pressure bars 81, the rigid-flexible strip 20 includes a vertical hard segment 201 embedded in the ring plate table 19 and an arc-shaped elastic column segment 202 vertically fixed at the top end of the vertical hard segment 201, the upper surface of the arc-shaped elastic column segment 202 is in contact with the horizontal pressure bar 81, and the lower surface of the arc-shaped elastic column segment 202 is designed to have different elasticities at different positions, and the closer to the vertical hard segment 201, the smaller the elasticity. The T disc piece 8 is provided with a plurality of horizontal pressure bars 81, the rigid-flexible strip 20 includes a vertical hard segment 201 embedded in the ring plate table 19 and an arc-shaped elastic column segment 202 vertically fixed at the top end of the vertical hard segment 201, the upper surface of the arc-shaped elastic column segment 202 is in contact with the horizontal pressure bar 81, and the lower surface of the arc-shaped elastic column segment 202 is designed to have different elasticities at different positions, and the closer to the vertical hard segment 201, the smaller the elasticity.

[0054] The T disc piece 8 is provided with a plurality of horizontal pressure bars 81, the rigid-flexible strip 20 includes a vertical hard segment 201 embedded in the ring plate table 19 and an arc-shaped elastic column segment 202 vertically fixed at the top end of the vertical hard segment 201, the upper surface of the arc-shaped elastic column segment 202 is in contact with the horizontal pressure bar 81, and the lower surface of the arc-shaped elastic column segment 202 is designed to have different elasticities at different positions, and the closer to the vertical hard segment 201, the smaller the elasticity. The T disc piece 8 is provided with a plurality of horizontal pressure bars 81, the rigid-flexible strip 20 includes a vertical hard segment 201 embedded in the ring plate table 19 and an arc-shaped elastic column segment 202 vertically fixed at the top end of the vertical hard segment 201, the upper surface of the arc-shaped elastic column segment 202 is in contact with the horizontal pressure bar 81, and the lower surface of the arc-shaped elastic column segment 202 is designed to have different elasticities at different positions, and the closer to the vertical hard segment 201, the smaller the elasticity.

[0055] The T disc piece 8 is provided with a plurality of horizontal pressure bars 81, the rigid-flexible strip 20 includes a vertical hard segment 201 embedded in the ring plate table 19 and an arc-shaped elastic column segment 202 vertically fixed at the top end of the vertical hard segment 201, the upper surface of the arc-shaped elastic column segment 202 is in contact with the horizontal pressure bar 81, and the lower surface of the arc-shaped elastic column segment 202 is designed to have different elasticities at different positions, and the closer to the vertical hard segment 201, the smaller the elasticity. The T disc piece 8 is provided with a plurality of horizontal pressure bars 81, the rigid-flexible strip 20 includes a vertical hard segment 201 embedded in the ring plate table 19 and an arc-shaped elastic column segment 202 vertically fixed at the top end of the vertical hard segment 201, the upper surface of the arc-shaped elastic column segment 202 is in contact with the horizontal pressure bar 81, and the lower surface of the arc-shaped elastic column segment 202 is designed to have different elasticities at different positions, and the closer to the vertical hard segment 201, the smaller the elasticity.

[0056] The T disc piece 8 is provided with a plurality of horizontal pressure bars 81, the rigid-flexible strip 20 includes a vertical hard segment 201 embedded in the ring plate table 19 and an arc-shaped elastic column segment 202 vertically fixed at the top end of the vertical hard segment 201, the upper surface of the arc-shaped elastic column segment 202 is in contact with the horizontal pressure bar 81, and the lower surface of the arc-shaped elastic column segment 202 is designed to have different elasticities at different positions, and the closer to the vertical hard segment 201, the smaller the elasticity. Figure 7The ring plate table 19 rotates by 60 degrees, specifically, the release shaft 16 drives the release gear 15, then drives the first worm 13 through the range increasing disc gear 14, the first worm 13 rotates multiple turns, controls the outer gear ring 21 to rotate by 60 degrees, and further controls the ring plate table 19 to rotate, so that the rigid-flexible strip 20 winds around one sixth of a circle, realizes the rigid-flexible switching, and the last time the rigid-flexible switching, that is, the release shaft 16 rotates a full circle, the transmission mode changes to the initial most flexible state, and the number of teeth on the release shaft 16 corresponds to the number of times of impact of the impact mold 4 on the brick raw materials.

[0057] Referring to the accompanying drawings Figure 10 It is understood that the release device 11 includes a release device 22 for clamping the gear disc 17, an external driving device 24 mounted on the outer surface of the square box 6, and an introduction shaft 23 between the external driving device 24 and the release device 22. The waist position frame 26 is fixed in the square box 6 to limit the support of the introduction shaft 23, and the V-shaped elastic sheet 25 is fixed on the T-shaped rail column 7 to clamp the external driving device 24 in one direction;

[0058] The release device 22 includes an integrated frame 28 fixed on the square box 6, a lead screw 30 and a sliding rod 27 supported on the integrated frame 28 at the same time, a T-shaped frame 29 sliding on the integrated frame 28, a wandering seat 31 penetrated by the lead screw 30 at one end, and a chuck assembly 32 connected on one side of the wandering seat 31. The introduction shaft 23 is engaged and driven with the rack provided on the T-shaped frame 29 through a fixed gear, the sliding rod 27 slides through the through hole provided on the wandering seat 31, the wandering seat 31 is sleeved with the lead screw 30 through the threaded hole provided thereon, the T-shaped frame 29 is provided with a lug plate inserted into the sliding groove provided on the integrated frame 28, and the end portions of the sliding rod 27 and the lead screw 30 are movably sleeved in the through hole provided on the integrated frame 28. The end of the lead screw 30 is butted against the driving motor installed in the square box 6, the position of the wandering seat 31 is controlled by controlling the number of turns of the lead screw 30, the wandering seat 31 drives the chuck assembly 32, so that the chuck assembly 32 selects a gear disc 17 for clamping. In summary, the number of times of impact of the impact mold 4 corresponds to the number of teeth on the gear disc 17, the hydraulic column 2 controls the impact mold 4, and the number of times of impact of the impact mold 4 is set in advance, and the corresponding gear disc 17 is selected.

[0059] The clamping head assembly 32 comprises a trolley 38 fixed on the traveling seat 31, a modulation plate 39 sliding through the plate hole of the trolley 38, an amplification shaft 37 supported on the trolley 38, an amplification gear 36 fixed at one end of the amplification shaft 37, a double control frame 35 driven on one side of the amplification gear 36, a damping ring 33 and a release cylinder 34 fixed on the double control frame 35, one end of the release cylinder 34 slidingly inserted into the round rod fixed on the traveling seat 31, the other end of the release cylinder 34 blocked on one side of a stop gear of the gear disc 17, and the other side of the stop gear distributed with the damping ring 33, one end of the double control frame 35 inserted into the sliding hole of the traveling seat 31, the other end of the amplification shaft 37 fixed with a gear to engage and drive the rack provided on the modulation plate 39, a straight column provided on the T-shaped frame 29 sliding through the square hole provided on the modulation plate 39, and a rack provided on the double control frame 35 engaging and driving the amplification gear 36. Please refer to the attached drawings Figure 12 It is understood that the amplification shaft 37 is movably sleeved in the through hole of the trolley 38, the clamping head assembly 32 moves with the traveling seat 31, but is always controlled by the T-shaped frame 29, the T-shaped frame 29 drives the modulation plate 39, the modulation plate 39 moves to control the rotation of the amplification shaft 37, and then the amplification gear 36 drives the double control frame 35, the double control frame 35, the damping ring 33 and the release cylinder 34 move synchronously, the release cylinder 34 moves axially to the left, the release cylinder 34 is pulled out from below the stop gear of the gear disc 17, the gear disc 17 rotates clockwise, the release cylinder 34 is reset and then intercepts the next stop gear, the damping ring 33 functions as a safety device, controls the gear disc 17 to complete the swing of only one gear at a time, prevents the release cylinder 34 from not resetting in time, and multiple stop gears pass through the release cylinder 34. Specifically, when the release cylinder 34 does not completely release the stop gear, the damping ring 33 moves above the stop gear, so that once released, the next stop gear will be intercepted by the damping ring 33, and then after the release cylinder 34 is completely reset, the damping ring 33 releases the next stop gear, and then the next stop gear is smoothly intercepted by the release cylinder 34, so that the release cylinder 34 releases only one stop gear of the gear disc 17 each time.

[0060] The external driving device 24 comprises a lap shaft 41 vertically driven with the lead-in shaft 23, a concave seat 40 fixed on the outer wall of the square box 6, a quick-action plate 42 sliding in the concave seat 40, and a return spring 43 for pushing the quick-action plate 42 to reset, one end of the return spring 43 being fixed on the concave seat 40. The external driving device 24 is in contact with the V-shaped spring 25 during the descending stage of the square box 6, and the external driving device 24 encounters the V-shaped spring 25 during the ascending stage, the end of the V-shaped spring 25 is provided with an arc surface to impact the protrusion provided on the quick-action plate 42, one end of the lap shaft 41 extends to the outside of the square box 6, and the end is fixed with a gear to engage and drive the rack provided on the quick-action plate 42. Please refer to the attached drawings Figure 13, the outer drive device 24 rises, although the protrusions on the fast-moving plate 42 can still be misaligned with the V-shaped elastic sheet 25, but will experience a collision, the fast-moving plate 42 is lowered a short distance, after the V-shaped elastic sheet 25 and the fast-moving plate 42 are misaligned, the fast-moving plate 42 rises under the push of the return spring 43, the lifting of the fast-moving plate 42 causes the reciprocating rotation of the lap shaft 41, the end of the lap shaft 41 is transmitted by the fixed bevel gear to the bevel gear fixed at the end of the lead-in shaft 23, the reciprocating rotation of the lead-in shaft 23 will cause the reciprocating sliding of the T-shaped frame 29, as mentioned earlier, which will eventually control the release cylinder 34 to complete a reciprocating axial sliding, thereby releasing a stop tooth of the gear position disc 17, the gear position disc 17 has a rotating tendency, and once released, the gear position disc 17 immediately rotates an angle.

[0061] The presser 12 comprises a main shaft 45 fixed coaxially to the release shaft 16, a one-way bearing 49 fixed to the other end of the main shaft 45, a mainspring 50 fixed outside the one-way bearing 49, an outer ring gear 48 fixed outside the mainspring 50, a side shaft 46 driven by one side of the outer ring gear 48, an inner drive shaft 44 driven perpendicularly by the side shaft 46, and a final frame 47 for simultaneously supporting the side shaft 46 and the main shaft 45, the final frame 47 is fixed on the square box 6, one end of the inner drive shaft 44 extends outside the square box 6, and the end of the inner drive shaft 44 is fixed with a gear to mesh with the rack fixed on the T-shaped rail column 7, the main shaft 45 supports the back plate provided on one side of the outer ring gear 48, and the back plate is fixed on the square box 6. Figure 14 It is understood that after the square box 6 descends with the presser 12, the outer end gear of the inner drive shaft 44 meshes with the stationary rack, thereby causing the inner drive shaft 44 to rotate multiple turns, the end of the inner drive shaft 44 is fixed with a bevel gear to change direction and drive the bevel gear fixed at one end of the side shaft 46, the other end of the side shaft 46 is fixed with a gear to mesh with the outer ring gear 48, the main shaft 45 is movably sleeved in the through hole provided in the middle of the back plate, so that the outer ring gear 48 rotates in place, causing the mainspring 50 to contract and store energy, and then the one-way bearing 49 controls the main shaft 45, the main shaft 45 has a rotating tendency, the main shaft 45 exerts pressure on the release shaft 16, the release shaft 16 has a rotating tendency, thereby controlling the gear position disc 17; the reset and rising stage of the presser 12, the mainspring 50 returns to the initial full state, then the mainspring 50 reverses with the outer ring gear 48, the one-way bearing 49 completely rotates with the mainspring 50, and the inner ring of the one-way bearing 49 does not further drive the main shaft 45, so that the mainspring 50 accurately returns to the initial full state, and the one-way bearing 49 functions as a reverse compensation.

[0062] The method for pressing and forming a sliding plate brick comprises the following steps:

[0063] Step one: setting data before pressing and processing, setting the lifting times of the hydraulic column 2 and the range of each lifting, and setting the speed of switching the flexible thrust to the rigid thrust in the switching box device 3;

[0064] Step two: during the pressing process, the impact mold 4 impacts the added brick raw material pieces in the feeding mold 5 for a certain number of times, so that the brick raw material is hardened and shaped;

[0065] Step three: during the continuous impact of the impact mold 4, the switching box device 3 gradually changes the pushing force mode of the impact mold 4 from strong flexibility to weak flexibility, and finally to rigidity;

[0066] Step four: after the continuous impact of the impact mold 4 is completed, the switching box device 3 automatically changes the pushing force mode of the impact mold 4 from rigidity to the initial strong flexibility, and then the next round of brick pressing and shaping work is performed.

[0067] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sliding block pressing and forming device, comprising a gantry frame, a hydraulic column that moves up and down within the gantry frame, a switching box device connected to the bottom end of the hydraulic column, an impact die connected to the bottom end of the switching box device, and a feeding die disposed below the impact die, characterized in that: The material feeding mold is filled with brick raw material, and the impact mold repeatedly presses down on the brick raw material to harden and shape it. During the process, the switching box device changes the way the impact mold provides thrust from flexible to rigid. The switching box device includes: The square box has a hydraulic column at the bottom that slides through a round hole at the top of the square box. The bottom of the square box is fixedly connected to the impact mold. T-shaped rail columns are fixed on the gantry frames on both sides of the square box, and the T-shaped rail columns are inserted into the sliding grooves on the outer wall of the square box. A T-disc component and a rigid-flexible disc component are installed in a square box. The upper end of the T-disc component is fixedly connected to a hydraulic column, and the lower end of the T-disc component contacts and presses against the rigid-flexible disc component. The multistager, releaser, and pressure generator are also installed in the square box. One end of the multistager is connected to the rigid-flexible disc drive, and the other end is connected to the pressure generator drive. The releaser is used to intercept and regulate the multistager, thereby controlling the switching speed of the flexible to rigid force provided to the impact die. The rigid-flexible disc includes a pile shaft fixed in a square box, an annular plate platform movably sleeved on the outside of the pile shaft, a plurality of rigid-flexible strips evenly arranged around the upper edge of the annular plate platform, and an external gear ring fixedly sleeved at the lower end of the annular plate platform. The T-disc component is provided with a ring of fixed horizontal pressure bars. The rigid-flexible strip includes a column hard section fixedly embedded in the ring plate platform and an arc-shaped elastic column section with the top of the column hard section vertically fixed. The upper surface of the arc-shaped elastic column section is in contact with the horizontal pressure bars. The lower surface of the arc-shaped elastic column section is designed with a slope to make its elasticity different in different places, and the local elasticity is smaller closer to the column hard section. The multistage includes a first worm gear meshing with an external gear ring, a stroke-extending disc gear driven at one end of the first worm gear, a release gear driven by a small gear fixed in the middle of the stroke-extending disc gear, a release shaft fixed in the middle of the release gear, and a row of gear plates fixedly sleeved on the release shaft. The gear plate includes a ring plate and multiple stop teeth evenly arranged around the edge of the ring plate. The number of stop teeth on each gear plate in a row is different, and they control the number of intermittent stops during one revolution of the release shaft. The release device includes a release device for locking the gear plate, an external drive device installed on the outside of the square box, and an introduction shaft for transmission between the external drive device and the release device. A waist frame is fixed in the square box to limit and support the introduction shaft, and a V-shaped spring is fixed on the T-shaped rail column to lock the external drive device in one direction. The release device includes an integrated frame fixed on a square box, a lead screw and a slide rod supported on the integrated frame, a T-shaped frame that slides directionally on the integrated frame, a traveling seat with one end penetrated by the lead screw, and a chuck assembly connected to one side of the traveling seat. The lead screw on the shaft meshes with the rack on the T-shaped frame through a fixed gear, and the slide rod slides through the through hole opened on the traveling seat. The presser includes a main shaft with one end coaxially fixedly connected to the release shaft, a one-way bearing fixedly sleeved at the other end of the main shaft, a mainspring with a fixed outer sleeve on the one-way bearing, an outer ring gear with a fixed outer sleeve on the mainspring, a side shaft driven by one side of the outer ring gear, an inner drive shaft driven perpendicularly to the side shaft, and an end frame for simultaneously supporting the side shaft and the main shaft. The end frame is fixed on the square box, one end of the inner drive shaft extends to the outside of the square box, and a gear is fixed at the end of the inner drive shaft to mesh with a rack fixed on the T-shaped rail column. The main shaft supports a back plate provided on one side of the outer ring gear.

2. The sliding block pressing and forming device according to claim 1, characterized in that: The first worm gear has a fixed gear at its end that meshes with the range extender gear for transmission. A recessed bracket is installed in the square box to support the first worm gear. The middle part of the range extender gear also has a fixed shaft that is movably sleeved in the circular groove opened on the square box.

3. The sliding block pressing and forming device according to claim 1, characterized in that: The chuck assembly includes a traveling frame fixed on a traveling seat, a modulation plate that slides through a hole in the traveling frame, an amplifying shaft supported on the traveling frame, an amplifying gear fixed at one end of the amplifying shaft, a dual control frame that drives on one side of the amplifying gear, and a damping ring and a release cylinder fixed on the dual control frame. One end of the release cylinder is slidably inserted into a round bar fixed on the traveling seat, and the other end of the release cylinder is blocked on one side of a stop tooth of the stop gear plate, and a damping ring is distributed on the other side of the stop tooth. One end of the dual control frame is inserted into a sliding hole in the traveling seat, and the gear fixed at the other end of the amplifying shaft meshes with a rack on the modulation plate. A straight column is provided on the T-shaped frame to slide through a square hole in the modulation plate, and a rack is provided on the dual control frame to mesh with the amplifying gear.

4. The sliding block pressing and forming device according to claim 1, characterized in that: The external drive device includes a lap shaft that drives perpendicularly to the input shaft, a concave seat fixed on the outer wall of the square box, a quick-acting plate that slides in the concave seat, and a return spring for pushing the quick-acting plate to reset. One end of the return spring is fixed on the concave seat. The external drive device makes misaligned contact with the V-shaped spring during the downward phase of the square box. During the upward phase of the external drive device, it encounters the V-shaped spring. The end of the V-shaped spring is provided with an arc surface to strike the protrusion provided on the quick-acting plate. One end of the lap shaft extends to the outside of the square box, and a gear is fixed at the end to mesh with the rack provided on the quick-acting plate for transmission.

5. A method for pressing and molding skateboard bricks, used in the skateboard brick pressing and molding apparatus of claim 1, characterized in that, Includes the following steps: Step 1: Set data before pressing and processing, set the number of times the hydraulic column rises and falls and the range of each rise and fall, and set the speed at which the flexible thrust in the switching box device switches to rigid thrust; Step 2: During the pressing process, the impact die impacts the brick raw material fragments added to the feeding die a set number of times, causing the brick raw material to harden and take shape. Step 3: During the continuous impact of the impact die, the way the switching box device applies thrust to the impact die gradually changes from strong flexibility to weak flexibility, and finally to rigidity; Step 4: After the continuous impact of the impact mold, the switching box device automatically switches the pushing force applied to the impact mold from rigid to the initial strong flexibility, and then proceeds to the next round of brick pressing and forming.

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