Automatic loading and unloading mechanism for engraving machine and its transmission method

Abstract

The present invention relates to the field of loading and unloading mechanisms, and specifically to an automatic loading and unloading mechanism for a plotter and a transmission method thereof, comprising a transverse rail for transversely conveying a plotter plate, a frame body being fixedly mounted on the outer side of the transverse rail, a screw rod being connected to the interior of the transverse rail via a bearing, an outer end face of the screw rod being connected to a motor via a coupling, and the motor being fixedly mounted on the outer end face of the transverse rail; a hydraulic cylinder for conveying the plotter plate up and down, the plotter plate being transported and processed by linkage with the screw rod, the hydraulic cylinder being threadedly connected to the screw rod via an internal thread block, the automatic loading and unloading mechanism for a plotter and a transmission method thereof, by driving a No. 1 slide plate and a No. 2 slide plate to move toward the center along the No. 1 rail and the No. 2 rail respectively, at which time two center clamps play the role of aligning and limiting the long sides of the material.

Description

Technical Field

[0001] The invention relates to the technical field of loading and unloading mechanisms, in particular to an automatic loading and unloading mechanism for a plotter and a transmission method thereof. Background Art

[0002] A plotter is a machine used to engrave text, patterns, and other contents on various materials. It is widely used in crafts, gifts, sign making, home decoration, and other fields. Currently, most of the materials for engraving text are plates, and the stacked plates need to be clamped from a distance before being transported and unloaded.

[0003] The existing automatic loading and unloading mechanisms for engraving machines have the following problems: 1. The plates will tilt during the initial stacking process, which is not conducive to clamping and conveying them; 2. The existing clamping equipment first expands the clamping space to at least be larger than the height of the plate stacking, and then shrinks it until the plate is clamped. This method will cause extrusion damage to the plate to a certain extent, and severe extrusion marks will be produced. Summary of the invention

[0004] The present invention provides an automatic loading and unloading mechanism for a cutting plotter and a transmission method thereof to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an automatic loading and unloading mechanism for a plotter, comprising a transverse rail for transversely conveying a plotter plate, a frame body being fixedly mounted on the outer side of the transverse rail, a screw rod being connected to the inside of the transverse rail via a bearing, an outer end face of the screw rod being connected to a motor via a coupling, and the motor being fixedly mounted on the outer end face of the transverse rail;

[0006] A hydraulic cylinder for transporting the lettering plate up and down, which is linked with the screw rod to transport the lettering plate, and the hydraulic cylinder is threadedly connected with the screw rod through an internal thread block;

[0007] The clamping mechanism performs all-round clamping processing on the lettering plates stacked at any height and is arranged below the hydraulic cylinder;

[0008] The outer side of the transverse rail is provided with a side groove, and the inner side of the side groove is slidably adapted with a driven rod, wherein the driven rod moves laterally synchronously with the hydraulic cylinder.

[0009] Preferably, the bottom end of the driven rod is fixedly connected to a surrounding strip, the interior of the surrounding strip is fixedly connected to a No. 1 spring, and the end of the No. 1 spring away from the surrounding strip is fixedly connected to a No. 1 rod, wherein the No. 1 rod is slidably adapted to the inner cavity of the surrounding strip;

[0010] The elastic bag is used for buffering the force of the deflected hydraulic cylinder and is fixedly connected to the outer end surface of the No. 1 rod.

[0011] Preferably, the bottom of the surrounding strip is fixedly connected to a bottom connecting rod, wherein the surrounding strip and the bottom connecting rod are both vacuum and interconnected, the interior of the bottom connecting rod is fixedly connected to a hollow sheet, the bottom of the hollow sheet is fixedly connected to a No. 2 spring, the bottom of the No. 2 spring is fixedly connected to a bottom oblique strip, wherein the bottom oblique strip is slidably adapted to the inner cavity of the bottom connecting rod.

[0012] Preferably, the clamping mechanism comprises a ladder frame, the top of the ladder frame is fixedly connected to the hydraulic cylinder, and the bottoms at both ends of the ladder frame are respectively fixedly connected to a first rail and a second rail;

[0013] The first rail is internally slidably adapted to be equipped with a first slide plate, and the outer side of the first slide plate is fixedly connected to a counterweight block;

[0014] The interior of the No. 2 rail is slidably adapted to be equipped with a No. 2 slide plate, and the outer side of the No. 2 slide plate is fixedly connected with a top inclined block.

[0015] Preferably, the clamping mechanism further comprises a placement table, and a material piece is arranged at the center of the placement table;

[0016] The telescopic plate is used to limit the ends of the stacked materials at different heights and is fixedly connected to the inside of the placement table;

[0017] An electric push rod is fixedly connected to the outer side of the placing table, a sleeve plate is fixedly connected to the top of the electric push rod, and the sleeve plate is fixedly connected to the top of the telescopic plate.

[0018] Preferably, both ends of the sleeve are symmetrically connected with the sleeve, the end of the sleeve away from the sleeve is sleeved with the insert, the interior of the sleeve is fixedly connected with a first magnetic block, and the end of the insert located inside the sleeve is fixedly connected with a second magnetic block, wherein a weak adsorption relationship is maintained between the first magnetic block and the second magnetic block;

[0019] The outer side of the panel part is fixedly connected with a folding strip.

[0020] Preferably, the bottom ends of the No. 1 slide and the No. 2 slide are fixedly connected with a center clamp, and both ends of the center clamp are symmetrically connected with side clamps, wherein the center clamp and the side clamps both have telescopic functions, and the upper and lower ends of the center clamp and the side clamps are fixedly connected with limiting plates.

[0021] Preferably, an adjustment component is provided at the bottom of the placement table, and a buffer pad is fixedly connected to the inner sides of the central clamping jaw and the side clamping jaws;

[0022] The adjustment assembly includes a bottom rail, and the bottom rail is fixedly connected to the bottom of the placement table;

[0023] The positioning block is used for upper and lower limit movement processing of the central clamping jaw and the side clamping jaw, and is fixedly connected to the outer side of the placement table.

[0024] Preferably, a No. 3 magnetic block is fixedly connected inside the bottom rail, a slider is slidably adapted inside the bottom rail, a No. 4 magnetic block is fixedly connected to a side of the slider close to the No. 3 magnetic block, wherein a strong repulsive relationship is maintained between the No. 3 magnetic block and the No. 4 magnetic block;

[0025] The surface of the slider is sleeved with an antenna plate, the outer side of the antenna plate is extruded and adapted with a vertical plate, and the vertical plate is fixedly connected to the bottom of the limit plate;

[0026] An extension plate is fixedly connected to the outer side of the sliding block, an elastic telescopic rod is fixedly connected to the outer side of the extension plate, and one end of the elastic telescopic rod away from the extension plate is fixedly connected to the folding strip.

[0027] The automatic loading and unloading conveying method for the engraving machine includes the following steps:

[0028] Step 1: By driving the No. 1 slide and the No. 2 slide to move toward the center along the No. 1 track and the No. 2 track respectively, the two center clamps align and limit the long sides of the workpiece;

[0029] Step 2: Through the contraction of the hydraulic cylinder, the ladder frame connected to the bottom will move upward with the No. 1 rail and the No. 2 rail respectively, and finally the center clamp and the side clamp will transport the clamped and wrapped materials upward;

[0030] Step 3: When the material rises to a certain height, start the motor so that the screw connected to its output end through the coupling will rotate, and the outer side of the screw is connected to the hydraulic cylinder through the internal thread block, so the material will be transported horizontally along the transverse rail.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. As the panel moves upward, the limit plate will move upward with the center jaw and the side jaw respectively, wherein the center jaw and the side jaw are both retractable, thereby playing the role of keeping the bottom of the limit plate level with the top of the stacked parts.

[0033] 2. By driving the No. 1 slide and the No. 2 slide to move toward the center along the No. 1 track and the No. 2 track respectively, the two center clamps will align the long sides of the workpiece and limit the position.

[0034] 3. By putting the panel into the kit, contracting the elastic telescopic rod and moving the slider inward, the center clamp and side clamp can be prevented from being extended and disturbed by the remaining components when they move the material upward, which may affect the normal transportation of the material.

[0035] 4. By pulling the distance between the No. 1 magnetic block and the No. 2 magnetic block apart until the elastic force of the elastic telescopic rod is greater than the attraction between the No. 1 magnetic block and the No. 2 magnetic block, all components inside the clamping mechanism will eventually return to their original state, thereby playing a role in rapid clamping of subsequent stacked materials of different heights and materials transported in multiple batches.

[0036] 5. The No. 2 slide plate moves the center clamp and the side clamp in that position toward the center for a second time, thereby performing a secondary clamping process on the material that is shaking or deflecting to prevent it from falling off.

[0037] 6. By starting the electric push rod and driving the telescopic plate to move upward until it reaches the height of the stacked materials, the extension height of the center clamp and the side clamp will be determined, and the inner diameter height of the package is exactly the same as the height of the stacked materials, thereby eliminating the need to use the traditional shrinkage clamping method for clamping and avoiding the appearance of clamp marks. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The figure is a schematic diagram of the external structure of the automatic loading and unloading mechanism for the engraving machine of the present invention.

[0039] Figure 2 It is a schematic cross-sectional structural diagram of the present invention as a whole.

[0040] Figure 3 It is a structural schematic diagram of the overall components of the present invention.

[0041] Figure 4 It is a schematic diagram of the transverse cross-sectional structure of the integral part of the present invention.

[0042] Figure 5 It is a schematic diagram of the longitudinal cross-sectional structure of the integral part of the present invention.

[0043] Figure 6 It is a structural schematic diagram of the clamping mechanism of the present invention.

[0044] Figure 7 It is a partial cross-sectional structural schematic diagram of the clamping mechanism of the present invention.

[0045] Figure 8 It is a structural schematic diagram of some components of the clamping mechanism of the present invention.

[0046] Fig. 9It is a schematic diagram of the bottom structure of the clamping mechanism of the present invention.

[0047] Fig.10 It is an enlarged structural schematic diagram of some components of the clamping mechanism of the present invention.

[0048] Fig.11 It is a schematic cross-sectional structural diagram of some components of the clamping mechanism of the present invention.

[0049] Fig.12 For the present invention Fig.11 Schematic diagram of the enlarged structure at point A in the middle.

[0050] Fig.13 It is a schematic cross-sectional structural diagram of the clamping mechanism of the present invention.

[0051] Fig.14 It is a schematic cross-sectional structural diagram of the regulating assembly of the present invention.

[0052] In the figure: 1, frame; 2, transverse rail; 3, motor; 4, lead screw; 5, hydraulic cylinder; 6, clamping mechanism; 7, side groove; 8, driven rod; 9, surrounding bar; 10, spring No. 1; 101, rod No. 1; 102, elastic bag; 103, bottom connecting rod; 104, hollow sheet; 105, spring No. 2; 106, bottom oblique bar; 61, ladder frame; 62, rail No. 1; 63, rail No. 2; 64, slide No. 1; 65, counterweight; 66, slide No. 2; 67, top oblique block; 68, placement table; 69, Materials; 60, telescopic plate; 601, electric push rod; 602, sleeve plate; 603, kit; 604, panel piece; 605, magnetic block No. 1; 606, magnetic block No. 2; 607, folding strip; 608, center clamp; 609, side clamp; 600, limit plate; 71, adjustment component; 72, buffer pad; 73, bottom rail; 74, positioning block; 75, magnetic block No. 3; 76, slider; 77, magnetic block No. 4; 78, antenna plate; 79, vertical plate; 70, extension plate; 701, elastic telescopic rod. DETAILED DESCRIPTION

[0053] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0054] See also Figures 1 to 14 The present invention provides a technical solution: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes a transverse rail 2 for horizontally transporting the engraved plate, a frame 1 is fixedly installed on the outer side of the transverse rail 2, a screw rod 4 is connected to the inside of the transverse rail 2 through a bearing, and the outer end surface of the screw rod 4 is connected to a motor 3 through a coupling, and the motor 3 is fixedly installed on the outer end surface of the transverse rail 2;

[0055] A hydraulic cylinder 5 for transporting the lettering plate up and down, and transporting the lettering plate by linkage with the screw rod 4, the hydraulic cylinder 5 is threadedly connected with the screw rod 4 through an internal thread block;

[0056] The clamping mechanism 6 performs all-round clamping of lettering plates stacked at any height and is arranged below the hydraulic cylinder 5; through the contraction of the hydraulic cylinder 5, the ladder frame 61 connected to the bottom end thereof will move upward with the No. 1 rail 62 and the No. 2 rail 63 respectively, and finally the center clamp 608 and the side clamp 609 will convey the clamped and wrapped material 69 upward. When the material 69 rises to a certain height, the motor 3 is started, so that the screw rod 4 connected to its output end through the coupling will rotate, and the outer side of the screw rod 4 is connected to the hydraulic cylinder 5 through an internal thread block, so the material 69 will be conveyed laterally along the transverse rail 2. When it moves laterally to the predetermined point, the hydraulic cylinder 5 is started and extended, thereby conveying the clamped material 69 to the lettering machine.

[0057] A side groove 7 is formed on the outer side of the transverse rail 2 , and a driven rod 8 is slidably adapted inside the side groove 7 , wherein the driven rod 8 moves laterally synchronously with the hydraulic cylinder 5 .

[0058] The bottom end of the driven rod 8 is fixedly connected to a surrounding strip 9, the interior of the surrounding strip 9 is fixedly connected to a No. 1 spring 10, and the end of the No. 1 spring 10 away from the surrounding strip 9 is fixedly connected to a No. 1 rod 101, wherein the No. 1 rod 101 is slidably adapted to the inner cavity of the surrounding strip 9;

[0059] The elastic bag 102 is used to buffer the deflected hydraulic cylinder 5 and is fixedly connected to the outer end surface of the first rod 101;

[0060] The bottom of the surrounding strip 9 is fixedly connected to a bottom connecting rod 103, wherein both the surrounding strip 9 and the bottom connecting rod 103 are vacuum and are interconnected, the interior of the bottom connecting rod 103 is fixedly connected to a hollow sheet 104, the bottom of the hollow sheet 104 is fixedly connected to a No. 2 spring 105, the bottom of the No. 2 spring 105 is fixedly connected to a bottom oblique strip 106, wherein the bottom oblique strip 106 is slidably adapted to the inner cavity of the bottom connecting rod 103. The screw rod 4 will cause wear after long-term operation. At this time, the hydraulic cylinder 5 will produce a certain lateral offset and shaking due to the inertial force during the lateral rapid conveying, and squeeze the elastic bag 102 in the offset direction, wherein the other side of the elastic bag 102 is connected to the No. 1 rod 101, so the No. 1 rod 101 will extend into the interior of the surrounding bar 9 and compress the No. 1 spring 10, wherein the interior of the surrounding bar 9 is filled with gas, so the squeezed gas will flow into the bottom connecting rod 103, and the bottom of the bottom connecting rod 103 is inserted with a bottom oblique bar 106, so the bottom oblique bar 106 squeezed by the gas will stretch the No. 2 spring 105 and move downward until it is squeezed and adapted to the top oblique block 67, wherein the top oblique block 67 is connected to the No. 2 slide 66, so the No. 2 slide 66 will carry the central clamp 608 and the side clamp 609 in this direction to move toward the center for a second time, thereby playing a role in secondary clamping of the material 69 in the process of shaking or offsetting to prevent it from falling off.

[0061] like Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the clamping mechanism 6 includes a ladder frame 61, the top of the ladder frame 61 is fixedly connected to the hydraulic cylinder 5, and the bottoms of both ends of the ladder frame 61 are respectively fixedly connected to a first rail 62 and a second rail 63;

[0062] The inner sliding adaptor of rail No. 1 62 is equipped with slide plate No. 1 64, and a counterweight block 65 is fixedly connected to the outer side of slide plate No. 1 64; the outer side of slide plate No. 1 64 is fixedly connected to a counterweight block 65, and the counterweight block 65 cooperates with slide plate No. 2 66 to move inward for the second time to avoid tilting due to uneven force. In addition, the weight of the counterweight block 65 is not very heavy, and it will not cause the clamping mechanism 6 to tilt.

[0063] The second rail 63 is internally slidably adapted with a second slide plate 66, and the outer side of the second slide plate 66 is fixedly connected with a top inclined block 67;

[0064] The clamping mechanism 6 also includes a placement table 68, and a material 69 is arranged at the center of the placement table 68;

[0065] The telescopic plate 60 is used to limit the ends of the stacked materials 69 at different heights and is fixedly connected to the inside of the placement table 68;

[0066] The outer side of the placement table 68 is fixedly connected with an electric push rod 601, the top of the electric push rod 601 is fixedly connected with a sleeve plate 602, and the sleeve plate 602 is fixedly connected to the top of the telescopic plate 60;

[0067] Both ends of the sleeve 602 are symmetrically connected with the sleeve 603, and the end of the sleeve 603 away from the sleeve 602 is sleeved with the insert 604, and the interior of the sleeve 603 is fixedly connected with the first magnetic block 605, and the end of the insert 604 inside the sleeve 603 is fixedly connected with the second magnetic block 606, wherein the first magnetic block 605 and the second magnetic block 606 maintain a weak adsorption relationship;

[0068] The outer side of the panel 604 is fixedly connected with a folding strip 607; when the central clamp 608 and the side clamp 609 completely wrap and clamp the material 69, the panel 604 will also extend into the predetermined depth of the inner cavity of the kit 603, and then the second magnetic block 606 connected to the panel 604 will generate a weak attraction with the first magnetic block 605 fixedly connected to the inside of the kit 603, and then under this attraction, the panel 604 will be completely received into the inside of the kit 603, and It does not contact the bottom of the limit plate 600. At the same time, the folding strip 607 connected to the insert part 604 will stay on the outside of the end surface of the kit 603, and the elastic telescopic rod 701 connected to the other end of the folding strip 607 will shrink. At the same time, the slider 76 will move to the other end of the bottom rail 73, thereby preventing the subsequent center clamp 608 and side clamp 609 from being extended and disturbed by the remaining components when clamping and moving the material 69 upward, thereby affecting the normal transportation of the material 69.

[0069] The bottom ends of the No. 1 slide 64 and the No. 2 slide 66 are fixedly connected with a center clamp 608, wherein the two ends of the center clamp 608 are fixedly connected with the two side clamps 609 respectively, and the number of center clamps 608 is also two, and they are symmetrically arranged on the two ends of the placement table 68, wherein the outer side of one center clamp 608 is fixedly connected with the No. 1 slide 64, and the outer side of the other center clamp 608 is fixedly connected with the No. 2 slide 66, and then the No. 1 slide 64 and the No. 2 slide 66 are driven to move toward the center along the No. 1 rail 62 and the No. 2 rail 63 respectively, at this time, the two center clamps 608 play the role of aligning and limiting the long sides of the material 69, and the two ends of the center clamp 608 are symmetrically connected with the side clamps 609, wherein the center clamp 608 and the side clamps 609 are both telescopic, and the upper and lower ends of the center clamp 608 and the side clamps 609 are fixedly connected with the limiting plate 600. By stacking the materials 69 on the placement table 68, the wide sides of the materials 69 will be limited and straightened, and then the electric push rod 601 will be started, so that the sleeve plate 602 connected to its output end will move upward with the telescopic plate 60, wherein the telescopic plate 60 plays the role of limiting the wide sides of the materials 69 stacked at different heights. At the same time, the sleeve 603 fixedly connected to the two ends of the sleeve plate 602 will move upward with the embedded panel 604 therein, wherein the limiting plate 600 is arranged above the embedded panel 604, so as the embedded panel 604 moves upward, the limiting plate 600 will move upward with the center clamp 608 and the side clamp 609 respectively, wherein the center clamp 608 and the side clamp 609 are both retractable, thereby playing the role of making the bottom of the limiting plate 600 level with the top of the stacked materials 69.

[0070] like Fig.13 and Fig.14 As shown, an adjustment assembly 71 is provided at the bottom of the placement table 68, and a buffer pad 72 is fixedly connected to the inner side of the central clamping jaw 608 and the side clamping jaw 609;

[0071] The adjustment assembly 71 includes a bottom rail 73, and the bottom rail 73 is fixedly connected to the bottom of the placement table 68;

[0072] The positioning block 74 is used for the upper and lower limit movement processing of the center clamp 608 and the side clamp 609, and is fixedly connected to the outer side of the placement table 68; the positioning block 74 plays the role of positioning and limiting the subsequent downward movement of the center clamp 608 and the side clamp 609, and at the same time, the vertical plate 69 fixedly connected to the bottom of the limit plate 600 will also be reinserted into the antenna plate 78.

[0073] The interior of the bottom rail 73 is fixedly connected with a No. 3 magnetic block 75, and the interior of the bottom rail 73 is slidably adapted with a slider 76, and the side of the slider 76 close to the No. 3 magnetic block 75 is fixedly connected with the No. 4 magnetic block 77, wherein the No. 3 magnetic block 75 and the No. 4 magnetic block 77 maintain a strong repulsive relationship; the material 69 is moved upward with the center clamp 608 and the side clamp 609, and at this time, the vertical plate 79 no longer limits and squeezes the antenna plate 78, and under the strong repulsive force between the No. 3 magnetic block 75 and the No. 4 magnetic block 77, the slider 76 connected to the No. 4 magnetic block 77 will respectively carry the antenna plate 78 and The extension plate 70 moves outward to reset, and the elastic telescopic rod 701 in this state is still in a retracted state, and extends outward from the kit 603 with the insert 604 through the folding strip 607. At this time, the distance between the No. 1 magnetic block 605 and the No. 2 magnetic block 606 will be pulled away until the elastic force of the elastic telescopic rod 701 is greater than the attraction between the No. 1 magnetic block 605 and the No. 2 magnetic block 606. Finally, all the components inside the clamping mechanism 6 will return to their original state, thereby playing a role in quickly clamping the subsequent stacking of materials 69 of different heights and the materials 69 delivered in multiple batches.

[0074] The surface of the slider 76 is sleeved with an antenna plate 78, and the outer side of the antenna plate 78 is extruded and adapted with a vertical plate 79, and the vertical plate 79 is fixedly connected to the bottom of the limiting plate 600;

[0075] The outer side of the slider 76 is fixedly connected to the extension plate 70 , and the outer side of the extension plate 70 is fixedly connected to the elastic telescopic rod 701 . One end of the elastic telescopic rod 701 away from the extension plate 70 is fixedly connected to the folding strip 607 . When the two center clamps 608 respectively move toward the center with the side clamps 609 at their two ends, the limit plate 600 fixedly connected to the bottom of the center clamp 608 and the side clamp 609 will move toward the center with the antenna plate 78, wherein the other end of the antenna plate 78 is connected to the slider 76, so the slider 76 will move toward the center along the bottom rail 73, and at the same time, the outer side of the slider 76 is connected to the elastic telescopic rod 701 through the extension plate 70, wherein the elastic telescopic rod 701 remains in an extended state when there is no force, and the elastic telescopic rod 701 in the above steps will not telescope, but play a role of distance compensation, and the other end of the elastic telescopic rod 701 is connected to the folding strip 607, wherein the vertical part of the folding strip 607 is retractable, and the other end of the folding strip 607 is connected to the panel part 604, so the folding strip 607 will extend into the interior of the kit 603 with the panel part 604.

[0076] When the present invention is used: first, the material 69 is stacked and placed on the placement table 68, at which time the wide side of the material 69 will be limited and straightened, and then the electric push rod 601 is started, so that the sleeve plate 602 connected to the output end thereof will move upward with the telescopic plate 60, and at the same time, the sleeve 603 fixedly connected to the two ends of the sleeve plate 602 will move upward with the embedded panel 604 embedded therein, wherein the limit plate 600 is arranged above the embedded panel 604, so as the embedded panel 604 moves upward, the limit plate 600 will respectively move with the central clamp 608 and the side clamp 609 moves upward together, wherein the two ends of the center clamp 608 are fixedly connected to the two side clamps 609 respectively, and the number of the center clamps 608 is also two, and they are symmetrically arranged on the two ends of the placement table 68, wherein the outer side of one center clamp 608 is fixedly connected to the No. 1 slide 64, and the outer side of the other center clamp 608 is fixedly connected to the No. 2 slide 66, and then the No. 1 slide 64 and the No. 2 slide 66 are driven to move toward the center along the No. 1 rail 62 and the No. 2 rail 63 respectively, and at this time the two center clamps 608 realize the alignment and limiting of the long sides of the material 69.

[0077] When the two center clamps 608 respectively move toward the center with the side clamps 609 at their two ends, the limit plate 600 fixedly connected to the bottom of the center clamp 608 and the side clamp 609 will move toward the center with the antenna plate 78, wherein the other end of the antenna plate 78 is connected to the slider 76, so the slider 76 will move toward the center along the bottom rail 73, and at the same time, the outer side of the slider 76 is connected to the elastic telescopic rod 701 through the extension plate 70, and the other end of the elastic telescopic rod 701 is connected to the folding strip 607, and the other end of the folding strip 607 is connected to the insert 604, so the folding strip 607 will extend into the interior of the kit 603 with the insert 604.

[0078] When the central clamp 608 and the side clamp 609 completely wrap and clamp the material 69, the panel 604 will also extend to the predetermined depth of the inner cavity of the kit 603. At this time, the No. 2 magnetic block 606 connected to the panel 604 will generate a weak attraction with the No. 1 magnetic block 605 fixedly connected to the inside of the kit 603. Then, under this attraction, the panel 604 will be completely retracted into the inside of the kit 603 and will not contact the bottom of the limit plate 600. At the same time, the folding strip 607 connected to the panel 604 will stay on the outside of the end surface of the kit 603, and the elastic telescopic rod 701 connected to the other end of the folding strip 607 will shrink accordingly. At the same time, the slider 76 will move to the other end of the bottom rail 73 to prevent the central clamp 608 and the side clamp 609 from being extended and interfered by the other components when clamping and moving the material 69 upward, thereby affecting the normal transportation of the material 69.

[0079] Through the contraction of the hydraulic cylinder 5, the ladder frame 61 connected to the bottom end thereof will move upward with the No. 1 rail 62 and the No. 2 rail 63 respectively, and finally the center clamp 608 and the side clamp 609 will convey the clamped and wrapped material 69 upward. When the material 69 rises to a certain height, the motor 3 is started, so that the screw rod 4 connected to its output end through the coupling will rotate, and the outer side of the screw rod 4 is connected to the hydraulic cylinder 5 through the internal thread block, so the material 69 will be conveyed laterally along the transverse rail 2.

[0080] The above-mentioned embodiments are only preferred embodiments of the present invention, and cannot be used to limit the scope of protection of the present invention. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work all fall within the scope of protection of the present invention.

Claims

1. Automatic loading and unloading mechanism for engraving machine, characterized in that: include: A transverse rail for horizontally conveying the lettering plate, wherein a frame is fixedly mounted on the outer side of the transverse rail, a screw rod is connected to the inside of the transverse rail via a bearing, an outer end face of the screw rod is connected to a motor via a coupling, and the motor is fixedly mounted on the outer end face of the transverse rail; A hydraulic cylinder for transporting the lettering plate up and down, which is linked with the screw rod to transport the lettering plate, and the hydraulic cylinder is threadedly connected with the screw rod through an internal thread block; The clamping mechanism performs all-round clamping processing on the lettering plates stacked at any height and is arranged below the hydraulic cylinder; A side groove is formed on the outer side of the transverse rail, and a follower rod is slidably adapted inside the side groove, wherein the follower rod moves laterally synchronously with the hydraulic cylinder; The clamping mechanism comprises a ladder frame, the top of the ladder frame is fixedly connected to the hydraulic cylinder, and the bottoms at both ends of the ladder frame are respectively fixedly connected to a first rail and a second rail; The first rail is internally slidably adapted to be equipped with a first slide plate, and the outer side of the first slide plate is fixedly connected to a counterweight block; The second rail is internally slidably adapted to be equipped with a second slide plate, and the outer side of the second slide plate is fixedly connected to a top inclined block; The clamping mechanism also includes a placement table, and a material is arranged at the center of the placement table; The telescopic plate is used to limit the ends of the stacked materials at different heights and is fixedly connected to the inside of the placement table; An electric push rod is fixedly connected to the outer side of the placement table, a sleeve plate is fixedly connected to the top of the electric push rod, and the sleeve plate is fixedly connected to the top of the telescopic plate; Both ends of the sleeve are symmetrically connected with the sleeve, the end of the sleeve away from the sleeve is sleeved with the insert, the interior of the sleeve is fixedly connected with a No. 1 magnetic block, and the end of the insert located inside the sleeve is fixedly connected with a No. 2 magnetic block, wherein the No. 1 magnetic block and the No. 2 magnetic block maintain an adsorption relationship; A folding strip is fixedly connected to the outer side of the panel piece; The bottom ends of the No. 1 slide and the No. 2 slide are fixedly connected with a central clamp, and both ends of the central clamp are symmetrically connected with side clamps, wherein the central clamp and the side clamps both have telescopic functions, and the upper and lower ends of the central clamp and the side clamps are fixedly connected with limiting plates.

2. The automatic loading and unloading mechanism for a cutting plotter according to claim 1, characterized in that: The bottom end of the driven rod is fixedly connected to a surrounding strip, the interior of the surrounding strip is fixedly connected to a No. 1 spring, and the end of the No. 1 spring away from the surrounding strip is fixedly connected to a No. 1 rod, wherein the No. 1 rod is slidably adapted to the inner cavity of the surrounding strip; The elastic bag is used for buffering the force of the deflected hydraulic cylinder and is fixedly connected to the outer end surface of the No. 1 rod.

3. The automatic loading and unloading mechanism for a cutting plotter according to claim 2, characterized in that: The bottom of the surrounding strip is fixedly connected to a bottom connecting rod, wherein both the surrounding strip and the bottom connecting rod are vacuum and are interconnected, the interior of the bottom connecting rod is fixedly connected to a hollow sheet, the bottom of the hollow sheet is fixedly connected to a No. 2 spring, the bottom of the No. 2 spring is fixedly connected to a bottom oblique strip, wherein the bottom oblique strip is slidably adapted to the inner cavity of the bottom connecting rod.

4. The automatic loading and unloading mechanism for a plotter according to claim 1, characterized in that: An adjustment component is provided at the bottom of the placement table, and a buffer pad is fixedly connected to the inner sides of the central clamping jaw and the side clamping jaws; The adjustment assembly includes a bottom rail, and the bottom rail is fixedly connected to the bottom of the placement table; The positioning block is used for upper and lower limit movement processing of the central clamping jaw and the side clamping jaw, and is fixedly connected to the outer side of the placement table.

5. The automatic loading and unloading mechanism for a plotter according to claim 4 is characterized in that: A third magnetic block is fixedly connected to the interior of the bottom rail, a slider is slidably adapted to the interior of the bottom rail, a fourth magnetic block is fixedly connected to the side of the slider close to the third magnetic block, wherein the third magnetic block and the fourth magnetic block maintain a repulsive relationship; The surface of the slider is sleeved with an antenna plate, the outer side of the antenna plate is extruded and adapted with a vertical plate, and the vertical plate is fixedly connected to the bottom of the limit plate; An extension plate is fixedly connected to the outer side of the sliding block, an elastic telescopic rod is fixedly connected to the outer side of the extension plate, and one end of the elastic telescopic rod away from the extension plate is fixedly connected to the folding strip.

6. A method for automatically loading and unloading materials for a cutting plotter, used in the automatic loading and unloading mechanism for a cutting plotter according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: By driving the No. 1 slide and the No. 2 slide to move toward the center along the No. 1 track and the No. 2 track respectively, the two center clamps align and limit the long sides of the workpiece; Step 2: Through the contraction of the hydraulic cylinder, the ladder frame connected to the bottom will move upward with the No. 1 rail and the No. 2 rail respectively, and finally the center clamp and the side clamp will transport the clamped and wrapped materials upward; Step 3: When the material rises to a certain height, start the motor so that the screw connected to its output end through the coupling will rotate, and the outer side of the screw is connected to the hydraulic cylinder through the internal thread block, so the material will be transported horizontally along the transverse rail.

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