High-load four-column type electric formwork

Abstract

The utility model relates to a high-load four-column type electric mold base which comprises a lower mold assembly, stand columns are vertically and symmetrically arranged at the four corners of the lower mold assembly respectively, and a top plate is horizontally erected at the top ends of the four stand columns. An upper die assembly capable of turning over by 45 degrees towards one side is arranged over the lower die assembly in a suspended mode, and lifting displacement of the upper die assembly is achieved through four lifting assemblies which are longitudinally and symmetrically arranged on the inner side faces of the corresponding stand columns correspondingly. The four-column type design is adopted, namely, the stand columns are arranged at the four corners of the lower mold assembly respectively, the top plate is erected on the tops of the stand columns, a stable frame structure is formed, the rigidity and the bearing capacity of the whole electric mold frame are greatly enhanced through the design, and the electric mold frame can easily meet the edge covering requirement of heavy-duty car skylight materials; it is ensured that deformation or damage does not occur in the operation process, and therefore the safety and reliability of operation are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric die sets, and particularly relates to a high-load four-column electric die set. Background Art

[0002] At present, in the hemming operation of automotive panoramic sunroofs, an electric die set is an important automated device, and its design and application have significantly improved the efficiency and quality of the hemming operation.

[0003] The existing electric die sets generally adopt a double-column structure, which has a weak bearing capacity and is not suitable for the hemming requirements of heavy-duty automotive sunroof materials, and cannot ensure the safety and reliability during the operation process. Content of the Utility Model

[0004] Aiming at the deficiencies existing in the prior art, the utility model provides a high-load four-column electric die set, and the specific technical solutions are as follows:

[0005] The utility model provides a high-load four-column electric die set, which includes a lower die assembly. Columns are vertically and symmetrically arranged at the four corners of the lower die assembly, and a top plate is horizontally arranged at the tops of the four columns. An upper die assembly that can be flipped 45° to one side is suspended directly above the lower die assembly, and the upper die assembly realizes lifting displacement through four lifting assemblies that are longitudinally and symmetrically arranged on the inner sides of the corresponding columns respectively.

[0006] As a preferred technical solution of the utility model, the lower die assembly includes a first box plate. A lower template is hinged and matched on one long side of the top surface of the first box plate. Two ends of the other long side are respectively horizontally and symmetrically provided with a first flipping motor. The power output end of the first flipping motor is drivingly connected with an L-shaped swing rod. The top end of the L-shaped swing rod is hinged with a straight rod, and the top end of the straight rod is hinged with the short side end of the corresponding lower template. The lower template can be tilted 30° towards the same side flipping direction of the upper die assembly.

[0007] As a preferred technical solution of the utility model, the lifting assembly includes a lifting motor arranged on the top plate. The power output end of the lifting motor is vertically and downward drivingly connected with a lead screw through a motor steering gear adapted thereto. A groove is formed on the inner side of the column, and the lead screw is rotationally connected in the groove of the corresponding column. A sliding table is drivingly screwed on the lead screw. A cross beam is horizontally arranged between two sliding tables in the same end face direction of the top plate, and the upper die assembly is arranged between the two cross beams.

[0008] As a preferred technical solution of the utility model, the upper die assembly includes an upper template disposed directly above the lower template. The upper template is fixedly embedded in the bottom surface of the third box board adapted thereto. The end surface of the third box board is vertically connected to the inner end of a rotating support shaft rotatably disposed in the middle of the cross beam. On the top surfaces of the two cross beams, two turnover motors II are respectively symmetrically arranged horizontally. The power output end of the turnover motor II is drivingly connected to a U-shaped swing rod through a motor steering gear adapted thereto. The bottom end of the U-shaped swing rod is hinged to an arc-shaped rod, and the bottom end of the arc-shaped rod is hinged to the end of the short side of the corresponding third box board.

[0009] As a preferred technical solution of the utility model, the end surface of the cross beam is longitudinally slidably connected with a slide rail vertically disposed on the inner side surface of the column in a matching manner.

[0010] As a preferred technical solution of the utility model, a U-shaped frame is fixedly provided directly below the bottom end of the slide rail. A limit cylinder is vertically embedded on the outer end surface of the U-shaped frame. A limit plate is vertically suspended at the end of the bottom surface of the cross beam facing the corresponding slide rail. Two jacks are longitudinally equidistantly opened in the lower part of the limit plate. After the cross beam descends in place, the limit plate is inserted into the corresponding U-shaped frame, and the piston rod of the limit cylinder extends and passes through the corresponding jack.

[0011] As a preferred technical solution of the utility model, a locking assembly is provided between the end of the cross beam and the corresponding column. The locking assembly includes a positioning cylinder horizontally suspended on the inner side surface of the end of the corresponding cross beam. The end of the piston rod of the positioning cylinder is axially fixedly connected with a toothed block, and the toothed block can be engaged and clamped with a positioning rack vertically fixed on the column.

[0012] As a preferred technical solution of the utility model, box boards II are respectively vertically and symmetrically fixedly connected to both ends of the first box board, and the thickness of the box board II is lower than that of the box board I. The top ends of both sides of the box board II are symmetrically welded with backing plates. The top surface of the backing plate is vertically screwed to the bottom surface of the corresponding column.

[0013] As a preferred technical solution of the utility model, guide wheels are respectively rotatably connected at equal intervals and symmetrically along the short side edge of the top surface of the lower template. A plurality of straight row wheels are respectively embedded at equal intervals along the long side direction of the middle part of the top surface of the lower template. The straight row wheels are arranged parallel to the short side of the lower template, and the top edge of the straight row wheel is flush with the top surface of the lower template.

[0014] As a preferred technical solution of the utility model, filling assemblies are provided on all four surfaces of the third box board. The filling assembly includes an L-shaped frame, and the vertical part of the L-shaped frame is adjustably and positioningly inserted through an adjusting plate fixedly provided on the outer peripheral surface of the corresponding third box board.

[0015] The beneficial effects of the utility model are:

[0016] The utility model adopts a four-column design, that is, columns are respectively arranged at the four corners of the lower die assembly, and a top plate is erected on the top of the columns to form a stable frame structure. This design greatly enhances the rigidity and load-bearing capacity of the entire electric die carrier, enabling it to easily meet the hemming requirements of heavy-duty vehicle sunroof materials, ensuring no deformation or damage during operation, thereby improving the safety and reliability of the operation.

[0017] The upper die assembly realizes lifting displacement through four lifting assemblies symmetrically arranged longitudinally inside the columns. This design not only ensures the smoothness and accuracy of the lifting process but also enables the upper die assembly to accurately align with the lower die assembly. In addition, the upper die assembly can be flipped 45° to one side, which is particularly important when replacing the die, adjusting the position, or performing maintenance, improving the flexibility and operability of the equipment, reducing downtime, and enhancing the overall operation efficiency. Brief Description of the Drawings

[0018] Figure 1 Shows the structural schematic diagram of the utility model in the material feeding state;

[0019] Figure 2 Shows the structural schematic diagram (1) of the lower die assembly of the utility model;

[0020] Figure 3 Shows the structural schematic diagram (2) of the lower die assembly of the utility model;

[0021] Figure 4 Shows the structural schematic diagram (1) of the utility model in the state where the upper die assembly is flipped;

[0022] Figure 5 Shows the structural schematic diagram (2) of the utility model in the state where the upper die assembly is flipped;

[0023] Figure 6 Shows the structural schematic diagram of the utility model in the die closing state.

[0024] As shown in the figure: 1. Lower die assembly; 11. First box board; 12. Lower template; 121. Guide wheel; 122. Straight row wheel; 13. First flipping motor; 131. L-shaped swing rod; 132. Straight rod; 14. Second box board; 141. Cushion plate; 2. Column; 21. Groove; 22. Slide rail; 3. Top plate; 4. Lifting assembly; 41. Lifting motor; 42. Lead screw; 43. Slide table; 5. Cross beam; 51. Limit plate; 511. Jack; 6. Upper die assembly; 61. Upper template; 611. Third box board; 62. Rotating support shaft; 63. Second flipping motor; 631. U-shaped swing rod; 632. Arc rod; 7. Limit cylinder; 71. U-shaped frame; 8. Locking assembly; 81. Positioning cylinder; 82. Positioning rack; 9. Filling assembly; 91. L-shaped frame; 92. Adjusting plate. Detailed implementation mode

[0025] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following embodiments are used to further elaborate on the present utility model in detail. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] Embodiment 1

[0027] To solve the technical problems in the background art, the following is a high-load four-column electric die carrier:

[0028] Combined with Figure 1 As shown, a high-load four-column electric die carrier includes a lower die assembly 1. Four columns 2 are vertically and symmetrically arranged at the four corners of the lower die assembly 1. A top plate 3 is horizontally installed at the tops of the four columns 2. An upper die assembly 6 that can be flipped 45° to one side is suspended directly above the lower die assembly 1. The upper die assembly 6 realizes lifting displacement through four lifting assemblies 4 that are longitudinally and symmetrically arranged on the inner sides of the corresponding columns 2 respectively.

[0029] By adopting the above technical solutions, this electric die carrier adopts a four-column design, that is, columns 2 are respectively arranged at the four corners of the lower die assembly 1, and a top plate 3 is installed on the top of the columns 2 to form a stable frame structure. This design greatly enhances the rigidity and load-bearing capacity of the entire electric die carrier, enabling it to easily meet the edge-wrapping requirements of heavy-duty vehicle sunroof materials, ensuring no deformation or damage during operation, and thus improving the safety and reliability of the operation.

[0030] The upper die assembly 6 realizes lifting displacement through four lifting assemblies 4 symmetrically arranged longitudinally inside the columns 2. This design not only ensures the smoothness and accuracy of the lifting process but also enables the upper die assembly 6 to accurately align with the lower die assembly 1. In addition, the upper die assembly 6 can be flipped 45° to one side, which is particularly important when replacing the die, adjusting the position, or performing maintenance. It improves the flexibility and operability of the equipment, reduces downtime, and enhances the overall operation efficiency.

[0031] Due to the stability of the four-column structure and the high-precision lifting mechanism, this electric die carrier can ensure that the automotive sunroof material is accurately and evenly pressed during the hemming operation, reducing problems such as uneven hemming and missed pressing caused by equipment vibration or instability, thus significantly improving the processing precision and appearance quality of the product.

[0032] Embodiment 2

[0033] Combined with Figures 1 to 6 As shown, on the basis of the above embodiment, this embodiment further gives the following content:

[0034] In this embodiment, as Figure 2 and Figure 3 shown, the lower die assembly 1 includes a first box plate 11. One long side of the top surface of the first box plate 11 is hinged with a lower template 12. At both ends of the other long side, a first flipping motor 13 is symmetrically arranged horizontally. The power output end of the first flipping motor 13 is drivingly connected to an L-shaped swing rod 131. The top end of the L-shaped swing rod 131 is hinged with a straight rod 132, and the top end of the straight rod 132 is hinged with the short side end of the corresponding lower template 12. The lower template 12 can be tilted 30° in the same flipping direction as the upper die assembly 6.

[0035] By adopting the above technical solution, the lower template 12 in the lower die assembly 1 is connected to the first box plate 11 in a hinged manner. This design enables the lower template 12 to be tilted 30° in the same flipping direction as the upper die assembly 6. In this way, during the hemming operation, the lower template 12 can be finely adjusted according to the shape and size of the sunroof material and can better fit with the upper die assembly 6, thereby reducing problems such as uneven hemming and missed pressing. At the same time, due to the stability and accuracy of the lower template 12, the uniformity and consistency of the hemming operation are ensured, and the processing quality and appearance effect of the product are improved.

[0036] The introduction of the first flipping motor 13, through its power output end drivingly connecting the L-shaped swing rod 131 and the straight rod 132, further drives the flipping of the lower template 12. This electric connecting rod driving method not only has a rapid response but also has a strong bearing capacity.

[0037] As Figure 2 and Figure 3As shown, both ends of the first box board 11 are vertically and symmetrically fixedly connected with the second box boards 14, and the thickness of the second box boards 14 is lower than that of the first box board 11; both ends of the top surface of the second box boards 14 are symmetrically welded with backing plates 141; the top surfaces of the backing plates 141 are vertically screwed to the bottom surfaces of the corresponding columns 2.

[0038] By adopting the above technical solution, the second box boards 14 provided can not only stably clamp the first box board 11, but also detachably and stably support the four columns 2.

[0039] As Figure 3 shown, guide wheels 121 are rotatably connected to the short edges of the top surface of the lower template 12 at equal intervals and symmetrically; a plurality of straight row wheels 122 are embedded in the middle of the top surface of the lower template 12 along the long side direction thereof at equal intervals. The straight row wheels 122 are arranged parallel to the short side of the lower template 12, and the top edges of the straight row wheels 122 are flush with the top surface of the lower template 12.

[0040] By adopting the above technical solution, the guide wheels 121 and the straight row wheels 122 provided can jointly guide and position the mold cavity for loading automotive skylight materials, reducing the resistance and friction during movement.

[0041] As Figure 1 shown, the lifting assembly 4 includes a lifting motor 41 arranged on the top plate 3. The power output end of the lifting motor 41 is vertically downwardly drivingly connected with a lead screw 42 through a motor steering gear adapted thereto. A groove 21 is formed in the inner side surface of the column 2, and the lead screw 42 is rotatably connected to the groove 21 of the corresponding column 2. A slide table 43 is drivingly screwed on the lead screw 42. A cross beam 5 is horizontally bridged between the two slide tables 43 in the same end face direction of the top plate 3, and an upper die assembly 6 is arranged between the two cross beams 5.

[0042] By adopting the above technical solution, four lifting assemblies 4 are respectively arranged on the inner side surfaces of the four columns 2, and the upper die assembly 6 is suspended below the top plate 3 through the cross beam 5. This distributed lifting design can disperse the load, reduce the force on each lifting assembly 4, thereby improving the load-bearing capacity and durability of the overall structure.

[0043] Each lifting assembly 4 adopts the structure of a lead screw 42 and a slide table 43, which can ensure the smoothness, accuracy and safety of the lifting process; the groove 21 on the inner side surface of the column 2 provides a stable lifting track for the cross beam 5 and the upper die assembly 6. This structure can effectively resist lateral forces, maintain the verticality of the lifting direction, and prevent the cross beam 5 and the upper die assembly 6 from tilting or shifting during the lifting process.

[0044] As Figures 4 to 6As shown in the figure, the upper die assembly 6 includes an upper template 61 disposed directly above the lower template 12. The upper template 61 is fixedly embedded in the bottom surface of the third box board 611 adapted thereto. The end surface of the third box board 611 is vertically connected to the inner end of a rotary support shaft 62 rotatably disposed in the middle of the cross beam 5. On the top surfaces of the two cross beams 5, a second flipping motor 63 is symmetrically arranged horizontally. The power output end of the second flipping motor 63 is drivingly connected to a U-shaped swing rod 631 through a motor steering gear adapted thereto. The bottom end of the U-shaped swing rod 631 is hinged to an arc-shaped rod 632. The bottom end of the arc-shaped rod 632 is hinged to the end of the short side of the corresponding third box board 611.

[0045] By adopting the above technical solution, in the upper die assembly 6 provided, the upper template 61 is rotationally fixed between the cross beams 5 through the third box board 611 and the rotary support shaft 62, and can realize the flipping function through the drive of the second flipping motor 63. This design enables the upper die assembly 6 to flip 45° to one side, facilitating the insertion and removal of panoramic sunroof materials, and greatly improving the flexibility of the operation. At the same time, the second flipping motor 63 realizes the smooth transmission of power and the precise control of flipping through the transmission mechanism of the U-shaped swing rod 631 and the arc-shaped rod 632, and can better adapt to the loading of heavy-duty vehicle sunroof materials.

[0046] As Figure 4 shown in the figure, filling components 9 are arranged on all four surfaces of the third box board 611. The filling component 9 includes an L-shaped frame 91. The vertical part of the L-shaped frame 91 is adjustably and positioningly inserted through an adjusting plate 92 fixedly arranged on the outer peripheral surface of the corresponding third box board 611.

[0047] By adopting the above technical solution, the L-shaped bracket in the filling component 9 provided can facilitate the erection of a filling gun head, so as to fill foaming glue for integrally forming the edge of the automotive sunroof glass and its bracket. The four filling components 9 can simultaneously fill foaming glue on the four sides of the automotive sunroof glass, improving the filling speed. The vertical part of the L-shaped frame 91 is adjustably and positioningly inserted through the adjusting plate 92, so that the height of the L-shaped frame 91 can be reasonably adjusted according to automotive sunroof materials of different sizes.

[0048] As Figure 1 shown in the figure, the end surface of the cross beam 5 is longitudinally slidably and cooperatively connected with a slide rail 22 vertically arranged on the inner side surface of the column 2.

[0049] By adopting the above technical solution, the provided slide rail 22 can facilitate the limiting and guiding of the lifting of the cross beam 5 and improve its lifting stability.

[0050] Embodiment 3

[0051] Combined with Figure 1 and Figure 6 shown in the figure, on the basis of the above embodiments, the following content is further given in this embodiment:

[0052] In this embodiment, as Figure 1 and Figure 6 shown, a U-shaped frame 71 is fixedly provided directly below the bottom end of the slide rail 22, and a limit cylinder 7 is vertically embedded on the outer end surface of the U-shaped frame 71; a limit plate 51 is vertically suspended at the end of the bottom surface of the cross beam 5 facing the corresponding slide rail 22, and two jacks 511 are longitudinally arranged at equal intervals in the lower part of the limit plate 51; after the cross beam 5 descends to the in-place position, the limit plate 51 is inserted into the corresponding U-shaped frame 71, and the piston rod of the limit cylinder 7 extends and passes through the corresponding jack 511.

[0053] By adopting the above technical solution, when the cross beam 5 drives the upper die assembly 6 to descend to the designated working position, the limit plate 51 moves down accordingly and is inserted into the corresponding U-shaped frame 71, and the piston rod of the limit cylinder 7 extends and passes through the jack 511 on the limit plate 51. This action not only further confirms the accurate position of the cross beam 5, but also firmly fixes the cross beam 5 at the current position through a physical locking mechanism, effectively preventing the upper die assembly 6 from moving upward during the operation;

[0054] The jacks 511 are arranged at equal intervals on the limit plate 51, providing multiple optional insertion points for the piston rod of the limit cylinder 7. This enables the die carrier to flexibly respond by adjusting the locking position of the limit cylinder 7 when adapting to different thicknesses or types of skylight materials, and also facilitates subsequent maintenance and adjustment work.

[0055] As Figure 1 and Figure 6 shown, a locking assembly 8 is provided between the end of the cross beam 5 and the corresponding column 2; the locking assembly 8 includes a positioning cylinder 81 horizontally suspended on the inner side surface of the end of the corresponding cross beam 5, and a tooth block is axially fixedly connected to the end of the piston rod of the positioning cylinder 81, and the tooth block can be meshed and clamped with a positioning rack 82 vertically fixed on the column 2.

[0056] By adopting the above technical solution, the design of the locking assembly 8 effectively prevents the risk of the cross beam 5 accidentally falling off due to external forces or mechanical failures during the rising process. Even in emergency situations such as motor failures and power outages, the locking assembly 8 can keep the cross beam 5 in a stable state and prevent the upper die assembly 6 from suddenly falling, causing casualties or equipment damage.

[0057] The positioning cylinder 81 in the locking assembly 8 drives the tooth block (not shown in the figure) to be meshed and clamped with the positioning rack 82 on the column 2 through the expansion and contraction of its piston rod. This process realizes the precise positioning of the cross beam 5 (and its upper die assembly 6) after lifting and lowering in place, ensures the accurate alignment between the upper die assembly 6 and the lower die assembly 1, and improves the accuracy of the edge wrapping operation.

[0058] After the tooth block meshes with the positioning rack 82, a stable mechanical connection is formed, effectively preventing the accidental movement or shaking of the crossbeam 5 during operation, and ensuring the stability and safety of operation under high load conditions.

[0059] The working principle and usage process of the present utility model:

[0060] When the present utility model is in use, first, the cut automotive skylight glass and the bracket are respectively placed and fixed on the corresponding mold cavities. Then, the first flipping motor 13 is started, and the lower template 12 is driven to flip 30° through the L-shaped swing rod 131 and the straight rod 132. At the same time, the second flipping motor 63 is started, and the third box plate 611 and the upper template 61 are driven to flip 45° through the U-shaped swing rod 631 and the arc rod 632. Then, the two mold cavities are respectively clamped on the upper template 61 and the lower template 12, and the guide wheels 121 and the straight row wheels 122 are used to assist in positioning to ensure the stability of the materials.

[0061] Subsequently, the lifting motor 41 is started, and the crossbeam 5 and the upper die assembly 6 are driven to descend through the lead screw 42 and the sliding table 43. After descending in place, the limiting plate 51 cooperates with the U-shaped frame 71, and the limiting air cylinder 7 extends the piston rod through the corresponding jack 511 to achieve positioning. Then, the injection gun head placed on the injection assembly 9 injects the foaming glue into the mold cavity. The foaming glue rapidly expands and cures on the contact surface between the automotive skylight glass and the bracket, forming an integrally molded edge.

[0062] After the edge wrapping is completed, the lifting motor 41 is started, and the crossbeam 5 and the upper die assembly 6 are driven to rise through the lead screw 42 and the sliding table 43. When the crossbeam 5 rises to the starting position, the positioning air cylinder 81 in the locking assembly 8 drives the tooth block at the end of its piston rod to mesh and engage with the positioning rack 82 to ensure the stable locking of the upper die assembly 6. Then, the second flipping motor 63 is started, and the upper template 61 is driven to flip 45° through the U-shaped swing rod 631 and the arc rod 632, and the finished product is taken out, thus completing a working cycle.

[0063] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-load four-column electric die carrier, characterized in that: It includes a lower die assembly (1), and vertical columns (2) are symmetrically arranged vertically at the four corners of the lower die assembly (1). A top plate (3) is horizontally supported at the tops of the four columns (2); an upper die assembly (6) that can be flipped 45° to one side is suspended directly above the lower die assembly (1), and the upper die assembly (6) realizes lifting displacement through four lifting assemblies (4) that are symmetrically arranged longitudinally on the inner sides of the corresponding columns (2).

2. The high-load four-column electric die carrier according to claim 1, characterized in that: The lower die assembly (1) includes a first box plate (11). One long side of the top surface of the first box plate (11) is hinged with a lower template (12). At both ends of the other long side, a first flipping motor (13) is symmetrically arranged horizontally. The power output end of the first flipping motor (13) is drivingly connected with an L-shaped swing rod (131). The top end of the L-shaped swing rod (131) is hinged with a straight rod (132). The top end of the straight rod (132) is hinged with the short side end of the corresponding lower template (12); the lower template (12) can be tilted 30° in the same flipping direction as the upper die assembly (6).

3. The high-load four-column electric die carrier according to claim 2, wherein: The lifting assembly (4) includes a lifting motor (41) arranged on the top plate (3). The power output end of the lifting motor (41) is vertically drivingly connected with a lead screw (42) through a motor reverser adapted thereto. A groove (21) is formed on the inner side surface of the column (2). The lead screw (42) is rotatably connected in the groove (21) of the corresponding column (2). A slide table (43) is drivingly screwed on the lead screw (42). A cross beam (5) is horizontally supported between the two slide tables (43) in the same end face direction of the top plate (3). The upper die assembly (6) is arranged between the two cross beams (5).

4. A high-load four-column electric die carrier according to claim 3, characterized in that: The upper die assembly (6) includes an upper template (61) arranged directly above the lower template (12). The upper template (61) is fixedly embedded in the bottom surface of a third box plate (611) adapted thereto. The end face of the third box plate (611) is vertically connected to the inner end of a rotating support shaft (62) rotatably arranged in the middle of the cross beam (5); on the top surfaces of the two cross beams (5), a second flipping motor (63) is symmetrically arranged horizontally. The power output end of the second flipping motor (63) is drivingly connected with a U-shaped swing rod (631) through a motor reverser adapted thereto. The bottom end of the U-shaped swing rod (631) is hinged with an arc-shaped rod (632). The bottom end of the arc-shaped rod (632) is hinged with the short side end of the corresponding third box plate (611).

5. A high-load four-column electric die carrier according to claim 3, characterized in that: The end face of the cross beam (5) is longitudinally slidably and cooperatively connected with a slide rail (22) vertically arranged on the inner side surface of the column (2).

6. The high-load four-column electric die carrier according to claim 5, characterized in that: A U-shaped frame (71) is fixedly installed directly below the bottom end of the slide rail (22). A limit cylinder (7) is vertically embedded on the outer end face of the U-shaped frame (71). A limit plate (51) is vertically suspended at the end of the bottom surface of the cross beam (5) facing the corresponding slide rail (22). Two jacks (511) are longitudinally and equidistantly opened in the lower part of the limit plate (51). After the cross beam (5) descends in place, the limit plate (51) is inserted into the corresponding U-shaped frame (71), and the piston rod of the limit cylinder (7) extends and passes through the corresponding jack (511).

7. A high-load four-column electric die carrier according to claim 5, characterized in that: A locking assembly (8) is provided between the end of the cross beam (5) and the corresponding column (2). The locking assembly (8) includes a positioning cylinder (81) horizontally suspended on the inner side surface of the end of the corresponding cross beam (5). The end of the piston rod of the positioning cylinder (81) is axially fixedly connected with a toothed block, and this toothed block can be engaged and clamped with a positioning rack (82) vertically fixed on the column (2).

8. The high-load four-column electric die carrier according to claim 2, characterized in that: Two box plates two (14) are respectively and vertically symmetrically fixedly connected to both ends of the box plate one (11), and the thickness of the box plate two (14) is lower than that of the box plate one (11). Two pads (141) are respectively and symmetrically welded to the two ends of the top surface of the box plate two (14). The top surface of the pad (141) is vertically screwed to the bottom surface of the corresponding column (2).

9. The high-load four-column electric die carrier according to claim 2, characterized in that: Guide wheels (121) are respectively and equidistantly and symmetrically rotatably connected to the short edges of the top surface of the lower template (12). A plurality of straight row wheels (122) are respectively and equidistantly embedded in the middle of the top surface of the lower template (12) along the long side direction thereof. The straight row wheels (122) are arranged parallel to the short side of the lower template (12), and the top edge of the straight row wheels (122) is flush with the top surface of the lower template (12).

10. A high-load four-column electric die carrier according to claim 4, characterized in that: Filling assemblies (9) are provided on all four faces of the box plate three (611). The filling assembly (9) includes an L-shaped frame (91), and the vertical part of the L-shaped frame (91) is adjustably and positionally connected to an adjusting plate (92) fixedly provided on the outer peripheral surface of the corresponding box plate three (611).

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