A multi-directional molding device for one-time molding of double-layer trays

Abstract

The present invention belongs to the field of tray hydraulic devices, and discloses a multi-directional die pressing forming device for one-time forming of double-layer trays, including a chassis, the chassis is connected with a lower fixing plate, the lower fixing plate is connected with a connecting rod, the connecting rod is connected with a middle fixing plate and an upper fixing plate, a lateral external core-pulling structure, the lateral external core-pulling structure is connected with the middle fixing plate, and the lateral external core-pulling structure is used for forming an outwardly-directed hollow structure; an inclined slider internal core-pulling mechanism, the inclined slider internal core-pulling mechanism is connected with the lower die assembly, and the inclined slider internal core-pulling mechanism is used for forming an inwardly-directed hollow structure; an ejection structure, the ejection structure is connected with the lower fixing plate, and the ejection structure is used for ejecting the formed finished product; the technical solution of the present invention can hydraulically form a tray with a double-layer structure integrally at one time, greatly improving the processing efficiency, and the produced tray is integrally formed with better stability, providing more possibilities for tray preparation, improving the applicability of the device, and promoting the development of the industry.

Description

Technical Field

[0001] The present invention relates to the field of pallet hydraulic devices, and particularly to a multi-directional molding equipment for one-time molding of double-layer pallets. Background Art

[0002] A pallet is a horizontal platform device used for containerizing, stacking, handling, and transporting goods and products as unit loads. As a container-like container equipment, pallets have now been widely used in fields such as production, transportation, warehousing, and circulation, and are considered one of the two key innovations in the logistics industry in the 20th century. As a tool for stacking and handling goods, a pallet is a movable loading platform and an important logistics appliance. It plays an irreplaceable role in the fast and efficient modern industrial and commercial logistics system and has broad market prospects in China;

[0003] Currently, most of the pallets used are prepared by hydraulic forming methods. The method of forming logistics pallets by molding has a history of many years. However, most traditional hydraulic devices are single-layer hydraulic. Such a hydraulic method is limited by the pressing method in a single direction, and its products are always single-layer structures. The molded logistics pallets always have only one style of single-sided nine feet, or the product is first pressed into a single-sided fitting by a hydraulic device and then different single-sided fittings are assembled into a double-sided panel. This results in low preparation and processing efficiency, and the structural stability of the finally formed product is also poor, making it inconvenient to use. Therefore, it is very important to provide a multi-directional molding equipment that can be used for one-time molding of double-layer pallets. Summary of the Invention

[0004] The present invention aims to provide a multi-directional molding equipment for one-time molding of double-layer pallets to solve the technical problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A multi-directional molding equipment for one-time molding of double-layer pallets, including a chassis, the chassis is connected with a lower fixed plate, the lower fixed plate is connected with a connecting rod, the connecting rod is connected with a middle fixed plate and an upper fixed plate, the middle fixed plate is connected with a lower mold assembly, the upper fixed plate is connected with a lower pressing cylinder, and the lower pressing cylinder is connected with an upper mold assembly; the lower fixed plate is connected with a mounting plate, the mounting plate is connected with a positioning rod, and the positioning rod is connected with a positioning plate; the lower fixed plate is connected with an upper pressing cylinder, the upper pressing cylinder is connected with a lower mold moving frame, the lower mold moving frame is slidably connected with the positioning plate, and the lower mold moving frame is connected with a lower template;

[0007] A horizontal external core-pulling structure, the horizontal external core-pulling structure is connected with the middle fixed plate, and the horizontal external core-pulling structure is used for forming an outward hollow structure;

[0008] The inclined slider core-pulling mechanism is connected to the lower die assembly, and the inclined slider core-pulling mechanism is used for forming an inwardly-directed hollow structure;

[0009] The ejection structure is connected to the lower fixing plate, and the ejection structure is used for ejecting the formed finished product.

[0010] Preferably, the lateral core-pulling structure includes a lateral hydraulic cylinder. There are several groups of the lateral hydraulic cylinders. The lateral hydraulic cylinder is connected with a mounting seat, and the mounting seat is connected to the middle fixing plate. The lateral hydraulic cylinder is connected with a lateral core-pulling slider, and the lateral core-pulling slider is slidably connected to the lower die assembly.

[0011] Preferably, the inclined slider core-pulling mechanism includes an inner core-pulling frame and an inclined slider hydraulic cylinder. The positioning plate is connected with an inner core-pulling platform, and the inner core-pulling frame is connected to the inner core-pulling platform. An inner core-pulling slider is slidably connected to the inner side of the inner core-pulling frame. The inner core-pulling slider is in a shape of '7'. The inner core-pulling frame is provided with a through hole, and the inner core-pulling slider cooperates with the through hole. The inner core-pulling slider is provided with a dovetail groove. The inclined slider hydraulic cylinder is connected to the lower fixing plate, and the inclined slider hydraulic cylinder is connected with a contact plate. The contact plate is connected with an inner core-pulling inclined ejector block, and the inner core-pulling inclined ejector block is slidably connected to the inner core-pulling frame. The inner core-pulling inclined ejector block is connected with a dovetail block, and the dovetail block is slidably connected to the dovetail groove.

[0012] Preferably, the ejection structure includes an ejection hydraulic cylinder. The ejection hydraulic cylinder is connected to the lower fixing plate. The output shaft of the ejection hydraulic cylinder is connected with an ejection plate, and the ejection plate is connected with an ejection rod. The ejection rod is slidably connected to both the positioning plate and the lower template.

[0013] Preferably, the middle fixing plate and the lower die assembly are respectively provided with through holes, and the lower template cooperates with the through holes.

[0014] Preferably, the ejection plate and the contact plate are respectively slidably connected to a positioning rod.

[0015] Preferably, the inner core-pulling inclined ejector block is slidably connected to the ejection plate.

[0016] Preferably, the lower die moving frame is respectively slidably connected to the ejection plate and the contact plate.

[0017] The beneficial effects produced by this technical solution:

[0018] The compression molding equipment provided by this technical solution consists of structures such as a horizontal external core-pulling mechanism, an inclined slider internal core-pulling mechanism, and an ejection mechanism. By driving the horizontal hydraulic mold to move through a horizontal hydraulic cylinder, the external hollow structure of the product can be formed. By driving the vertical core-pulling top block to move through an inclined slider hydraulic cylinder, the internal hollow structure of the product can be formed. Moreover, by changing the structures of the mold and the hydraulic equipment, this compression molding mold can be hydraulically formed into an integrated tray with a double-layer structure at one time, greatly improving the processing efficiency. And the produced tray is integrally formed with better stability, providing more possibilities for tray preparation, improving the applicability of the device, and promoting the development of the industry; it has obvious positive improvement significance.

[0019] The lower template is connected to the upper pressing cylinder, enabling the compression molding to be completed either by the downward pressing of the upper mold assembly or by the upward pressing of the lower template during compression molding, improving the compression molding efficiency and applicability and facilitating the molding of molds with different shapes. Brief Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the present invention;

[0021] Figure 2 It is a schematic structural diagram of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the lower mold assembly provided by the present invention;

[0023] Figure 4 It is a front cross-sectional view of the internal core-pulling slider provided by the present invention;

[0024] Figure 5 It is a top cross-sectional view of the internal core-pulling slider provided by the present invention;

[0025] Figure 6 It is a schematic structural diagram of the internal core-pulling inclined top block provided by the present invention;

[0026] Figure 7 It is a schematic structural diagram of the lower mold assembly provided by the present invention;

[0027] Figure 8 It is a schematic structural diagram of the positioning plate provided by the present invention;

[0028] Figure 9 It is a schematic structural diagram of the ejection plate provided by the present invention;

[0029] Figure 10 It is a schematic structural diagram of the lower template provided by the present invention;

[0030] Figure 11 It is a partial exploded view of the lower mold assembly provided by the present invention;

[0031] Reference numerals: chassis 1, lower fixing plate 2, connecting rod 3, middle fixing plate 4, upper fixing plate 5, lower die assembly 6, lower pressing cylinder 7, upper die assembly 8, mounting plate 9, positioning rod 10, positioning plate 11, upper pressing cylinder 12, lower die moving frame 13, lower template 14, transverse hydraulic cylinder 15, mounting seat 16, transverse core-pulling slider 17, inner core-pulling frame 18, inclined slider hydraulic cylinder 19, inner core-pulling table 20, inner core-pulling slider 21, through hole 22, dovetail groove 23, abutting plate 24, inner core-pulling inclined ejector block 25, dovetail block 26, ejecting hydraulic cylinder 27, ejecting plate 28, ejecting rod 29, through hole 30. Detailed implementation manners

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and implementation manners:

[0033] As Figures 1 to 11 shown, a multi-directional molding device for the one-time molding of double-layer trays includes a chassis 1. The chassis 1 is connected to a lower fixing plate 2. The lower fixing plate 2 is connected to a connecting rod 3. The connecting rod 3 is connected to a middle fixing plate 4 and an upper fixing plate 5. The middle fixing plate 4 is connected to a lower die assembly 6. The lower die assembly 6 can also be understood as a mother frame, providing space for the molding of products. The upper fixing plate 5 is connected to a lower pressing cylinder 7. The lower pressing cylinder 7 is connected to an upper die assembly 8. The upper die assembly 8 can be inserted into the lower die assembly 6. The lower fixing plate 2 is connected to a mounting plate 9. The mounting plate 9 is connected to a positioning rod 10. The positioning rod 10 is connected to a positioning plate 11. The lower fixing plate 2 is connected to an upper pressing cylinder 12. The upper pressing cylinder 12 is connected to a lower die moving frame 13. The lower die moving frame 13 is slidably connected to the positioning plate 11. The lower die moving frame 13 is connected to a lower template 14. The middle fixing plate 4 and the lower die assembly 6 are respectively provided with through holes 30. The lower template 14 cooperates with the through holes 30, that is, the lower template 14 can pass through the middle fixing plate 4 and the bottom of the lower die assembly 6 through the through holes 30, and then enter the inside of the lower die assembly 6 and be located below the upper die assembly 8.

[0034] A transverse outer core-pulling structure is connected to the middle fixing plate 4 and is used for forming an outwardly hollow structure. The transverse outer core-pulling structure includes a transverse hydraulic cylinder 15. There are four groups of transverse hydraulic cylinders 15, which are respectively located on the front side, rear side, left side and right side of the lower die assembly 6. The transverse hydraulic cylinder 15 is connected to a mounting seat 16. The mounting seat 16 is connected to the middle fixing plate 4. The transverse hydraulic cylinder 15 is connected to a transverse core-pulling slider 17. The transverse core-pulling slider 17 is slidably connected to the lower die assembly 6 and is slidably connected to the side wall of the lower die assembly 6, that is, the transverse core-pulling slider 17 can pass through the side wall of the lower die assembly 6 and enter the inside of the lower die assembly 6.

[0035] The core-pulling mechanism in the inclined slider is connected to the lower mold assembly 6. The core-pulling mechanism in the inclined slider is used to form an inward-looking hollow structure; the core-pulling mechanism in the inclined slider includes an inner core-pulling frame 18 and an inclined slider hydraulic cylinder 19. The positioning plate 11 is connected to an inner core-pulling table 20. The inner core-pulling frame 18 is connected to the inner core-pulling table 20. The cross-section of the inner core-pulling frame 18 is rectangular. The inner side of the inner core-pulling frame 18 is slidably connected to an inner core-pulling slider 21. One group of inner core-pulling frames 18 can be slidably connected to four groups of inner core-pulling sliders 21. The four groups of inner core-pulling sliders 21 are respectively slidably connected to the inner side walls of the four sides of the inner core-pulling frame 18. The inner core-pulling slider 21 can only slide horizontally along the inner core-pulling frame 18. The inner core-pulling slider 21 is in the shape of a 7. The inner core-pulling frame 18 is provided with a through hole 22. The inner core-pulling slider 21 cooperates with the through hole 22. The protruding portion of the upper end of the block 21 is slidably connected with the through hole 22, further making it possible for the inner core-pulling slider 21 to slide horizontally only relative to the inner core-pulling frame 18. The inner core-pulling slider 21 is provided with a dovetail groove 23. The inclined slider hydraulic cylinder 19 is connected to the lower fixed plate 2. The inclined slider hydraulic cylinder 19 is connected to a resistance plate 24. The resistance plate 24 is connected to an inner core-pulling inclined top block 25. The inner core-pulling inclined top block 25 is slidably connected to the inner core-pulling frame 18. The inner core-pulling inclined top block 25 is connected to a dovetail block 26. The dovetail block 26 is slidably connected to the dovetail groove 23. One inner core-pulling inclined top block 25 can be connected to four groups of dovetail blocks 26. The four groups of dovetail blocks 26 respectively cooperate with four groups of inner suction sliders in one group of inner core-pulling frames 18. In actual design, a corresponding number of inner core-pulling frames 18 and inner core-pulling top blocks can be set according to actual product needs.

[0036] Since the inner core-pulling slider 21 is in a 7-shape, the outer side of the inner core-pulling inclined top block 25 and the dovetail block 26 are also inclined, and the inner core-pulling slider 21 can only move along the inner core-pulling frame 18, so as the inner core-pulling inclined top block 25 moves up or down, the dovetail block 26 also moves up or down with the inner core-pulling inclined top block 25, and the inclined dovetail block 26 slides along the inclined dovetail groove 23, and then contacts the side wall of the dovetail groove 23, so that the inner core-pulling slider 21 moves horizontally, and then the inner core-pulling slider 21 moves horizontally along the through hole 22, so as to realize the molding of the inward hollow structure of the product and core pulling;

[0037] The ejection structure is connected to the lower fixed plate 2, and the ejection structure is used to eject the finished molded product; the ejection structure includes an ejection hydraulic cylinder 27, and the ejection hydraulic cylinder 27 is connected to the lower fixed plate 2. Multiple groups of ejection hydraulic cylinders 27 can be provided, and the output shafts of the multiple groups of ejection hydraulic cylinders 27 are commonly connected to the ejection plate 28, and the ejection plate 28 is connected to the ejection rod 29, and the ejection rod 29 is slidably connected to the positioning plate 11 and the lower template 14.

[0038] The ejector plate 28 and the abutting plate 24 are respectively slidably connected to the positioning rod 10. The ejector plate 28 is located above the abutting plate 24. The inner core-pulling angled ejector block 25 is slidably connected to the ejector plate 28. The lower template 14 is slidably connected to the inner core-pulling frame 18. The lower die moving frame 13 is also slidably connected to the ejector plate 28 and the abutting plate 24 respectively, so that the lower die moving frame 13 can drive the lower template 14 to move up or down.

[0039] The specific implementation process is as follows:

[0040] During use, install the molding device as Figure 1 shown. At this time, the lower template 14 is located at the inner bottom of the lower die assembly 6. The ejector rod 29 penetrates through the lower template 14, and the top of the ejector rod 29 is flush with the corresponding position of the lower template 14. At this time, the lateral core-pulling slider 17 is not inserted into the lower die assembly 6 either, and the outer end of the inner core-pulling slider 21 is also flush with the outer side wall of the inner core-pulling frame 18. At this time, the original product to be molded can be placed into the lower die assembly 6. The original product abuts against the lower template 14, the side walls of the inner core-pulling frame 18, and the inner side wall of the lower die assembly 6. At this time, start the angled slider hydraulic cylinder 19. The angled slider hydraulic cylinder 19 drives the abutting plate 24 and the inner core-pulling angled ejector block 25 to move upward. The upward movement of the inner core-pulling angled ejector block 25 pushes the inner core-pulling slider 21 to slide, so that the inner core-pulling slider 21 slides out of the inner core-pulling frame 18 along the through hole 22, facilitating the subsequent formation of the inner hollow structure. Then start the lateral hydraulic cylinder 15. The lateral hydraulic cylinder 15 drives the lateral molding die to move and insert it into the lower die assembly 6 to facilitate the formation of the subsequent outer hollow structure. Then start the downward pressure cylinder 7 to drive the upper die assembly 8 to press down. During this period, the upper pressure cylinder 12 can be started to drive the lower template 14 to move upward according to the actual production situation, thereby completing the molding of the original product and making the original product molded. After the product is molded and cooled, start the downward pressure cylinder 7 to drive the upper die assembly 8 to move upward. Then start the lateral hydraulic cylinder 15 to drive the lateral molding die to slide out of the lower die assembly 6. Start the angled slider hydraulic cylinder 19 to drive the inner core-pulling angled ejector block 25 to move downward, so that the inner core-pulling slider 21 slides into the through hole 22 again. Then start the ejector hydraulic cylinder 27. The ejector hydraulic cylinder 27 drives the ejector plate 28 to move upward, thereby driving all the ejector rods 29 to move upward. The upward movement of the ejector rods 29 abuts against the molded product and jacks the product upward, so that the product is separated from the lower template 14. Then the product is ejected out of the lower die assembly 6, and the product is taken out to complete the molding. Then reset the device to perform the next molding again.

[0041] The above are only embodiments of the present invention, and common general technical solutions and / or characteristics in the solution are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope claimed in this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A multi-directional molding device for one-time molding of double-layer pallets, characterized in that: Including a base frame (1), The bottom frame (1) is connected to a lower fixed plate (2), the lower fixed plate (2) is connected to a connecting rod (3), the connecting rod (3) is connected to a middle fixed plate (4) and an upper fixed plate (5), the middle fixed plate (4) is connected to a lower die assembly (6), the upper fixed plate (5) is connected to a lower pressure cylinder (7), the lower pressure cylinder (7) is connected to an upper die assembly (8); the lower fixed plate (2) is connected to a mounting plate (9), the mounting plate (9) is connected to a positioning rod (10), the positioning rod (10) is connected to a positioning plate (11); the lower fixed plate (2) is connected to an upper pressure cylinder (12), the upper pressure cylinder (12) is connected to a lower die moving frame (13), the lower die moving frame (13) is slidably connected to the positioning plate (11), and the lower die moving frame (13) is connected to a lower die plate (14); A transverse outer core pulling structure, the transverse outer core pulling structure is connected to the middle fixed plate (4), and the transverse outer core pulling structure is used to form an outward-facing hollow structure; the transverse outer core pulling structure comprises a transverse hydraulic cylinder (15), the transverse hydraulic cylinder (15) is provided with a plurality of groups, the transverse hydraulic cylinder (15) is connected to a mounting seat (16), the mounting seat (16) is connected to the middle fixed plate (4), the transverse hydraulic cylinder (15) is connected to a transverse core pulling slider (17), and the transverse core pulling slider (17) is slidably connected to the lower mold assembly (6); The core-pulling mechanism in the inclined slider is connected to the lower mold assembly (6), and is used to form an inward-facing hollow structure; the core-pulling mechanism in the inclined slider comprises an inner core-pulling frame (18) and an inclined slider hydraulic cylinder (19); the positioning plate (11) is connected to an inner core-pulling table (20); the inner core-pulling frame (18) is connected to the inner core-pulling table (20); the inner side of the inner core-pulling frame (18) is slidably connected to an inner core-pulling slider (21); the inner core-pulling slider (21) is in a 7-shape; the inner core-pulling frame (18) is provided with a through hole (22); the inner core-pulling slider (21) cooperates with the through hole (22); the inner core-pulling slider (21) is provided with a dovetail groove (23); The inclined slider hydraulic cylinder (19) is connected to the lower fixed plate (2), the inclined slider hydraulic cylinder (19) is connected to a contact plate (24), the contact plate (24) is connected to an inner core-pulling inclined ejector block (25), the inner core-pulling inclined ejector block (25) is slidably connected to the inner core-pulling frame (18), the inner core-pulling inclined ejector block (25) is connected to a dovetail block (26), and the dovetail block (26) is slidably connected to the dovetail groove (23); An ejection structure, the ejection structure is connected to the lower fixing plate (2), and the ejection structure is used to eject the finished molded product.

2. A multi-directional molding device for one-time molding of double-layer pallets as claimed in claim 1, characterized in that: The ejection structure comprises an ejection hydraulic cylinder (27), the ejection hydraulic cylinder (27) is connected to the lower fixed plate (2), the output shaft of the ejection hydraulic cylinder (27) is connected to an ejection plate (28), the ejection plate (28) is connected to an ejection rod (29), and the ejection rod (29) is slidably connected to both the positioning plate (11) and the lower template (14).

3. The multi-directional molding equipment for one-time molding of double-layer pallets as claimed in claim 1, characterized in that: The middle fixed plate (4) and the lower mold assembly (6) are respectively provided with through holes (30), and the lower mold plate (14) cooperates with the through holes (30).

4. The multi-directional molding equipment for one-time molding of double-layer pallets as claimed in claim 2, characterized in that: The ejection plate (28) and the contact plate (24) are respectively slidably connected to the positioning rod (10).

5. The multi-directional molding equipment for one-time molding of double-layer pallets as claimed in claim 2, characterized in that: The inner core-pulling inclined ejector block (25) is slidably connected to the ejector plate (28).

6. The multi-directional molding equipment for one-time molding of double-layer pallets as claimed in claim 2, characterized in that: The lower die moving frame (13) is slidably connected to the ejection plate (28) and the contact plate (24) respectively.

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