Automatic molding press for waste plastic trays

Abstract

The utility model provides a waste plastic tray automatic molding press which comprises a supporting seat, a working groove is formed in the top of the supporting seat, a lower supporting plate is arranged at the top of the working groove, sliding rails are symmetrically arranged at the top of the lower supporting plate, the sliding rails are connected with a plurality of movable trays in a matched mode, and tray molds are arranged at the tops of the movable trays. The four corners of the top of the lower supporting plate are connected with sliding supporting columns, the tops of the sliding supporting columns are connected with a downward pressing tray in a matched mode, and a hydraulic mechanism is arranged on the top of the downward pressing tray. And after mold pressing is finished, the mold is taken out, a new mold is placed, and plastic is conveyed again, so that the overall mold pressing efficiency is low.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of waste plastic pallet molding, and specifically relates to an automatic die pressing machine for waste plastic pallets. Background Art

[0002] A plastic pallet is a modern logistics unit used in conjunction with logistics equipment such as forklifts and shelves, and is mainly used for storing, loading, and transporting goods. As a key equipment in a modern warehousing and logistics system, replacing wooden pallets can effectively reduce the consumption of forest resources and conform to the environmental protection trend. With the enhancement of food safety awareness and the improvement of hygiene requirements in the pharmaceutical industry, plastic pallets are widely used in the food and pharmaceutical industries due to their advantages such as moisture-proof, anti-corrosion, insect-proof, non-rusting, and non-molding. In addition, their excellent load-bearing capacity and durability also make them widely used in fields such as chemical industry, light textile, and manufacturing.

[0003] In order to improve the structural strength of plastic pallets, a die pressing machine is generally used to perform die pressing operations on plastic pallets. A plastic pallet die pressing machine is a special equipment for manufacturing plastic pallets. It melts plastic particles or powders through high temperature and high pressure and presses them into a mold to form a pallet. According to different molds, plastic pallets of various specifications and shapes can also be produced, which are widely used in industries such as logistics, warehousing, and transportation. In order to further reduce costs and improve the recycling rate of plastics, waste plastic items are now also melted to make plastic pallets.

[0004] The inventor found the following defects during the operation of specific embodiments:

[0005] At present, when using a die pressing machine, generally only one mold tray is used for feeding operations. The melted plastic is placed on the mold tray, and then die pressing operations are carried out. After die pressing is completed, the mold is taken out and a new mold is placed to convey the plastic again. In this way, the overall die pressing efficiency is relatively low.

[0006] It should be noted that the above content belongs to the technical cognition scope of the inventor. Due to the vast and complex technical content in this field, the above content of this application does not necessarily constitute the prior art. Content of the Utility Model

[0007] 1. Technical problems to be solved by the utility model:

[0008] The utility model provides an automatic die pressing machine for waste plastic pallets to solve the technical problems existing in the above background art.

[0009] 2. Technical solutions:

[0010] To achieve the above object, the technical solution provided by the present utility model is: an automatic die pressing machine for waste plastic pallets, including a support base. A working groove is opened at the top of the support base. A lower support plate is provided at the top of the working groove. Symmetric sliding tracks are provided at the top of the lower support plate. A plurality of moving pallets are connected in a matching manner to the sliding tracks. A pallet mold is provided at the top of the moving pallet. Four corners of the top of the lower support plate are connected to sliding support columns. The top of the sliding support columns is connected in a matching manner to a pressing-down pallet. A hydraulic mechanism is provided at the top of the pressing-down pallet. In this device, two moving pallets are adopted. When performing die pressing operations, the melted plastic is first poured into the pallet mold of one moving pallet. Subsequently, the moving pallet moves on the sliding track until it reaches a preset position at the bottom of the pressing-down pallet for die pressing operations. When this moving pallet is performing die pressing operations and moving, the pallet mold of the other moving pallet is pouring melted plastic. The hydraulic mechanism drives the pressing-down pallet to perform die pressing operations on the pallet mold. After die pressing is completed, the hydraulic mechanism drives the pressing-down pallet to reset. Subsequently, the moving pallet with the completed die pressing moves outwards to take out the plastic pallet in the pallet mold. Then, melted plastic is poured again and waits for the next round of die pressing operations. At this time, the moving pallet and the pallet mold on the other side can move to the preset position to perform die pressing operations again. Through the movement cooperation of the two moving pallets, the die pressing efficiency of this device can be improved, thereby reducing the manufacturing cost of plastic pallets.

[0011] Further, the sliding track includes a support frame. A conveying plate is detachably connected to the top of the support frame. The conveying plate is also arranged in a groove at the top of the lower support plate. Plugging holes are symmetrically opened on the lower support plate. The plugging holes are connected in a matching manner to limit protrusions. A blocking plate is provided at the end of the support frame.

[0012] Further, a driving device is provided on one side of the bottom of the moving pallet. The driving device is connected to a first gear. The first gear meshes with a second gear. The second gear is arranged on a rotating moving shaft. Both ends of the rotating moving shaft are connected to first moving wheels. The first moving wheels are connected to the conveying plate. A second moving wheel is provided on the other side of the moving pallet. Limiting clamping plates are provided on both sides of the first moving wheel and the second moving wheel. The limiting clamping plates are matched with the limiting protrusions.

[0013] Further, convex sliding grooves are spaced apart on the top of the conveying moving pallet. A sliding nut is arranged in the convex sliding groove. The sliding nut is connected in a matching manner to an L-shaped positioning block.

[0014] Further, the hydraulic mechanism includes an upper cross beam. A hydraulic working cylinder is arranged in the upper cross beam. The bottom of the hydraulic working cylinder is connected to the pressing-down pallet. Fences are provided on four sides of the top of the upper cross beam. A notch is opened on one side of the fence. A maintenance ladder is provided at the notch.

[0015] 3. Beneficial effects:

[0016] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0017] The present utility model is reasonably designed. During operation, multiple moving trays are provided, and tray molds are placed at intervals on the top of the moving trays. The moving trays move alternately on the sliding tracks, achieving the function of continuous feeding and discharging, and greatly improving the production efficiency of plastic trays;

[0018] By setting the cooperation of the limit bump and the limit clamping plate, the movement of the moving tray along a straight line can be packaged, improving the accuracy of die pressing. Moreover, a movable L-shaped positioning block is provided on the top of the moving tray, thereby ensuring that the moving tray can be placed at a preset position and improving the processing accuracy.

[0019] It should be noted that the structures not introduced in the present utility model are the same as the prior art or can be implemented by the prior art since they do not involve the design key points and improvement directions of the present utility model, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the sliding track of the present utility model;

[0022] Figure 3 is a schematic structural diagram of the moving tray of the present utility model;

[0023] Figure 4 is of the present utility model Figure 3 is an enlarged structural diagram of part A of the present utility model.

[0024] Reference Numerals:

[0025] 1, support base; 2, working groove; 3, lower support plate; 4, sliding track; 41, support frame; 42, conveying plate; 43, groove; 44, insertion hole; 45, limit bump; 46, blocking plate; 5, moving tray; 51, driving device; 52, first gear; 53, rotating moving shaft; 54, first moving wheel; 55, limit clamping plate; 56, second gear; 6, tray mold; 61, convex chute; 62, L-shaped positioning block; 7, sliding support column; 8, pressing tray; 9, hydraulic mechanism; 91, upper cross beam; 92, hydraulic working cylinder; 93, fence; 94, maintenance ladder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] For ease of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant accompanying drawings. Several embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0029] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "connected to", "fixed", "provided with", "provided in" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Embodiment

[0030] Refer to the attached Figures 1-4, An automatic die - pressing machine for waste plastic pallets, comprising a support base 1. A working groove 2 is opened at the top of the support base 1. A lower support plate 3 is provided at the top of the working groove 2. Symmetric sliding tracks 4 are provided at the top of the lower support plate 3. The sliding tracks 4 are matingly connected to a plurality of moving pallets 5. A pallet mold 6 is provided at the top of the moving pallet 5. Four corners of the top of the lower support plate 3 are connected to sliding support columns 7. The top of the sliding support columns 7 is matingly connected to a lower - pressing pallet 8. A hydraulic mechanism 9 is provided at the top of the lower - pressing pallet 8. In this embodiment, two moving pallets 5 are used. When performing die - pressing operations, the melted plastic is first poured into the pallet mold 6 of one moving pallet 5. Subsequently, the moving pallet 5 moves on the sliding track 4 until it reaches a preset position at the bottom of the lower - pressing pallet 8 for die - pressing operations. While the pallet mold 6 of this moving pallet 5 is performing die - pressing operations and moving, the pallet mold 6 of the other moving pallet 5 is pouring melted plastic. The hydraulic mechanism 9 drives the lower - pressing pallet 8 to perform die - pressing operations on the pallet mold 6. After die - pressing is completed, the hydraulic mechanism 9 drives the lower - pressing pallet 8 to reset. Subsequently, the moving pallet 5 with the completed die - pressing moves outwards to take out the plastic pallet in the pallet mold 6. Then, melted plastic is poured again and waits for the next round of die - pressing operations. At this time, the moving pallet 5 and the pallet mold 6 on the other side can move to the preset position to perform die - pressing operations again. Through the movement cooperation of the two moving pallets 5, the die - pressing efficiency of this device can be improved, thereby reducing the manufacturing cost of plastic pallets.

[0031] The sliding track 4 includes a support frame 41. A conveying plate 42 is detachably connected to the top of the support frame 41. The conveying plate 42 is also disposed in a groove 43 at the top of the lower support plate 3. Plug - in holes 44 are symmetrically opened on the lower support plate 3. The plug - in holes 44 are matingly connected to limiting convex blocks 45. A blocking plate 46 is provided at the end of the support frame 41. The moving pallet 5 can move back and forth on the conveying plate 42, thereby cooperating with the lower - pressing pallet 8 for die - pressing operations. The limiting convex blocks 45 are inverted in the plug - in holes 44 to limit the movement of the lower - pressing pallet 8. The blocking plate 46 prevents the moving pallet 5 from disengaging from the sliding track 4 due to malfunctions.

[0032] On one side of the bottom of the movable tray 5, there is a driving device 51. The driving device 51 is connected to a first gear 52. The first gear 52 meshes with a second gear 56. The second gear 56 is arranged on a rotating and moving shaft 53. Both ends of the rotating and moving shaft 53 are connected to first moving wheels 54. The first moving wheels 54 are connected to a conveying plate 42. On the other side of the movable tray 5, there are second moving wheels. On both sides of the first moving wheels 54 and the second moving wheels, there are limit clamping plates 55. The limit clamping plates 55 are matched with the limit bumps 45. When it is necessary to move the movable tray 5, the driving device 51 rotates to drive the second gear 56 to rotate through the first gear 52, and then the first moving wheels 54 move on the conveying plate 42. The second moving wheels and the first moving wheels 54 cooperate with each other to perform a moving operation on the entire movable tray 5. In order to ensure that the movable tray 5 moves along a preset straight line when moving, the limit clamping plates 55 and the limit bumps 45 are set to be matched, so that the movable tray 5 moves along the conveying plate 42 in a straight line operation.

[0033] On the top of the conveying and moving tray 5, there are convex chutes 61 spaced apart. Inside the convex chutes 61, there are sliding nuts. The sliding nuts are matched and connected to L-shaped positioning blocks 62. The L-shaped positioning blocks 62 are locked and positioned on the convex chutes 61 through the sliding nuts, which is convenient for subsequent clamping and positioning of the tray mold 6 and improves the accuracy during subsequent die pressing.

[0034] The hydraulic mechanism 9 includes an upper crossbeam 91. Inside the upper crossbeam 91, there is a hydraulic working cylinder 92. The bottom of the hydraulic working cylinder 92 is connected to the lower pressing tray 8. On the top of the upper crossbeam 91, there are fences 93 on four sides. There is a notch on one side of the fences 93. An inspection ladder 94 is arranged at the notch. Under the action of hydraulic oil, the hydraulic working cylinder 92 will generate an up-and-down moving force on the lower pressing tray 8 at the bottom. The working principle of the hydraulic working cylinder 92 adopts the existing technology and will not be elaborated here. When the lower pressing tray 8 descends, die pressing operation is performed, and when it rises, it resets. The inspection ladder 94 is convenient for staff to perform maintenance operations on the hydraulic mechanism 9 on the upper crossbeam 91, and the fences 93 prevent staff from falling.

[0035] The above embodiments only represent a certain implementation mode of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. An automatic molding machine for waste plastic pallets, characterized by: The invention comprises a support seat (1), a working groove (2) is formed on the top of the support seat (1), a lower support plate (3) is provided on the top of the working groove (2), sliding rails (4) are symmetrically provided on the top of the lower support plate (3), the sliding rails (4) are matched and connected to a plurality of mobile pallets (5), a pallet mold (6) is provided on the top of the mobile pallet (5), the four corners of the top of the lower support plate (3) are connected to sliding support columns (7), the top of the sliding support column (7) is matched and connected to a pressing pallet (8), and a hydraulic mechanism (9) is provided on the top of the pressing pallet (8).

2. The automatic waste plastic pallet molding machine according to claim 1, characterized in that: The sliding track (4) comprises a support frame (41), the top of the support frame (41) is detachably connected to a conveying plate (42), the conveying plate (42) is also arranged in a groove (43) at the top of the lower support plate (3), the lower support plate (3) is symmetrically provided with plug holes (44), the plug holes (44) are matched with the connection limit protrusions (45), and a blocking plate (46) is provided at the end of the support frame (41).

3. The automatic waste plastic pallet molding machine according to claim 2 is characterized by: A driving device (51) is provided on one side of the bottom of the movable tray (5), the driving device (51) is connected to a first gear (52), the first gear (52) meshes with a second gear (56), the second gear (56) is provided on a rotating movable shaft (53), both ends of the rotating movable shaft (53) are connected to first movable wheels (54), the first movable wheel (54) is connected to a conveying plate (42), a second movable wheel is provided on the other side of the movable tray (5), limiting clamping plates (55) are provided on both sides of the first movable wheel (54) and the second movable wheel, the limiting clamping plates (55) matching the limiting protrusions (45).

4. The automatic waste plastic pallet molding machine according to claim 1, characterized in that: The top of the conveying movable tray (5) is spaced apart with convex sliding grooves (61), wherein a sliding nut is arranged in the convex sliding groove (61), and wherein the sliding nut is matched and connected with an L-shaped positioning block (62).

5. The automatic waste plastic pallet molding machine according to claim 1, characterized in that: The hydraulic mechanism (9) comprises an upper crossbeam (91), a hydraulic working cylinder (92) is arranged in the upper crossbeam (91), the bottom of the hydraulic working cylinder (92) is connected to the pressing tray (8), and fences (93) are arranged on four sides of the top of the upper crossbeam (91), a notch is opened on one side of the fence (93), and a maintenance ladder (94) is arranged at the notch.

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