Downward-discharging type feeding device for production of waste plastic mould pressing trays

Abstract

The utility model provides a bottom-out feeding device for waste plastic mould pressing tray production, which structurally comprises a base, mounting seats are movably connected to the front and rear sides of the left and right ends of the base, auxiliary hydraulic rods are fixedly arranged on the outer sides of the mounting seats, branch supports are detachably clamped to the top of the base, and the branch supports are fixedly connected to the left and right ends of the base. Branch pipes are fixedly arranged on the inner sides of the branch supports. An upper template is detachably connected to the bottom of the upper base in a sleeving manner; the top of the upper base is detachably sleeved with an upper template, the top of the lower base is detachably sleeved with a lower template, the auxiliary hydraulic rods are designed on the left side and the right side of the upper base while the mold closing hydraulic rods are designed, the design of downward pressing of the mold closing hydraulic rods and downward pulling of the auxiliary hydraulic rods in the mold closing operation of the equipment is achieved, and it is ensured that the upper template and the lower template are tightly combined; the situation that a large gap appears at the edge where the upper mold plate and the lower mold plate are combined due to pressure rise when the waste plastic raw materials are injected into the tray forming cavity is avoided, and the mold closing tightness of the upper mold plate and the lower mold plate is guaranteed.

Description

Technical Field

[0001] This utility model mainly relates to the field of plastic extrusion technology, specifically to a bottom-discharge feeding device for the production of waste plastic molding pallets. Background Technology

[0002] The production of waste plastic pallets requires heating the collected waste plastic material to a molten state, then conveying the molten waste plastic material to the extrusion head via a screw conveyor, and finally injecting the molten waste plastic into the molding die to complete the forming process of the waste plastic pallet.

[0003] In the production of waste plastic pallets, taking the 1200mm×1000mm pallet, which is common in China, as an example, injection molding is required for one-time molding. Its single injection molding production is characterized by large injection volume and large injection area.

[0004] The inventor proposes a bottom-out feeding device for the production of waste plastic molded pallets. Through the bottom-out and one-out-four feeding design, it meets the production needs of large injection volume and large injection area in the injection molding production of waste plastic pallets. The design includes a mold-closing hydraulic rod and an auxiliary hydraulic rod to ensure the tightness of the mold closing between the upper and lower mold plates during injection molding production. Utility Model Content

[0005] 1. Technical problem solved by the utility model:

[0006] This utility model provides a bottom-out feeding device for the production of waste plastic molded pallets, which solves the technical problem that the single-outlet design of the injection head of the existing equipment cannot meet the large injection volume and large injection area of ​​waste plastic pallets, making it difficult to form a single injection.

[0007] 2. Technical Solution:

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows: a bottom-discharge feeding device for the production of waste plastic molding pallets, comprising the following structure:

[0009] The base has mounting seats movably connected to the front and rear sides of both the left and right ends. An auxiliary hydraulic rod is fixed to the outer side of the mounting seat. A sub-branch is detachably snapped onto the top of the base. A branch pipe is fixed to the inner side of the sub-branch.

[0010] The upper base has an upper template that can be detachably fitted to its bottom.

[0011] The lower base has a lower template detachably fitted onto its top.

[0012] Furthermore, support frames are fixedly provided on both the left and right sides of the base. The tops of the two support frames are fixedly connected to the left and right sides of the two bridge frames respectively. The bottom middle parts of the two bridge frames are fixedly connected to the front and rear sides of the frame respectively. Mold-closing hydraulic rods are fixedly provided at both the front and rear ends of the frame. The bottom output ends of the mold-closing hydraulic rods are detachably snapped to the top front and rear sides of the docking seat respectively. The bottom of the docking seat is fixedly connected to the top of the upper base by bolts.

[0013] Furthermore, the front end of the sub-support is fixedly provided with a receiving pipe that matches the discharge port of the injection molding machine, the inner side of the sub-support is fixedly provided with an electric heating sleeve, and the bottom of the sub-support is detachably snapped with a cover plate.

[0014] Furthermore, a transition tube is fixedly provided at the front end of the branch pipe, and the bottom of the transition tube is fixedly connected to the rear outlet of the receiving pipe. Outlets are fixedly provided on both the left and right sides of the branch pipe. An injection tube is provided above each of the four outlets outside the branch pipe. The bottom of the injection tube is fixedly connected to the top of the branch support. The outlet of the injection tube extends to the space between the upper and lower mold plates. The outer side of the outlet of the branch pipe is sleeved with the middle of the electric heating jacket.

[0015] Furthermore, top frames are fixedly provided on the left and right sides of the bottom of the upper base, and the front and rear ends of the two top frames are respectively movably connected to the top output ends of four auxiliary hydraulic rods. Guide rods are fixedly provided on the front and rear ends of the top frames.

[0016] Furthermore, the middle part of the lower base is movably sleeved with the outer side of the injection tube. Auxiliary frames are fixed on the top left and right sides of the lower base. Guide seats are fixed at the front and rear ends of the auxiliary frames. The top of the guide seats is movably sleeved with the bottom of the guide rod. A retaining seat is fixed on the top of the guide seat at the front of the auxiliary frame. An infrared beam sensor transmitter and an infrared beam counter receiver are respectively engaged on the front and rear sides of the retaining seat. The light-emitting port of the infrared beam sensor transmitter and the light-receiving port of the infrared beam counter receiver both extend to the top of the guide seat.

[0017] Furthermore, a tray forming cavity is formed between the bottom of the upper template and the top of the lower template, and the middle part of the lower template is movably sleeved with the outer side of the injection tube.

[0018] 3. Beneficial effects:

[0019] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0020] This utility model provides a bottom-discharge feeding device for the production of waste plastic molding pallets. In addition to designing the mold-closing hydraulic rod, auxiliary hydraulic rods are designed on the left and right sides of the upper base. This design realizes the downward pressing action of the mold-closing hydraulic rod and the downward pulling action of the auxiliary hydraulic rod during the mold-closing operation of this equipment. This ensures the tight connection between the upper and lower mold plates and avoids large gaps at the joint edge of the upper and lower mold plates caused by the pressure rise when the waste plastic raw material is injected into the forming cavity of the pallet. This ensures the tightness of the mold-closing between the upper and lower mold plates.

[0021] This utility model provides a bottom-out feeding device for the production of waste plastic molded pallets. The branch pipe adopts a one-out-four design to inject a large amount of molten waste plastic raw material into the pallet forming cavity, so as to complete the one-time forming of the waste plastic pallet between the upper and lower molds, which meets the production needs of large injection area and large injection volume in the injection molding production of waste plastic pallets.

[0022] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0023] Figure 1 This is a perspective view of the structure of this utility model;

[0024] Figure 2 This is a perspective view of the structure of this utility model;

[0025] Figure 3 This is a perspective view of the structure of this utility model;

[0026] Figure 4 This is a perspective view of the structure of this utility model;

[0027] Figure 5 This is a utility model Figure 4 Enlarged view of the structure at point A in the middle;

[0028] Figure 6 This is a half-sectional perspective view of the structure of this utility model;

[0029] Figure 7 This is an exploded view of the structure of this utility model;

[0030] Figure 8 This is a half-sectional perspective view of the structure of this utility model;

[0031] Figure 9 This is a utility model Figure 8 Enlarged view of the structure at point B.

[0032] Figure label:

[0033] Base-1; Support frame-11; Cable tray-12; Machine frame-13; Mold closing hydraulic rod-14; Connecting seat-15;

[0034] Mounting base-2; Auxiliary hydraulic rod-21;

[0035] Support bracket-3; receiving pipe-31; electric heating jacket-32; cover plate-33;

[0036] Branch pipe-4; Transition pipe-41; Injection molding pipe-42;

[0037] Upper base-5; Upper template-51;

[0038] Top frame-6; Guide rod-61;

[0039] Lower base-7; Lower template-71;

[0040] Auxiliary frame-8; guide seat-81; card holder-82; infrared beam sensor transmitter-83; infrared beam sensor receiver-84. Detailed Implementation

[0041] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0042] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element; the terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] See attached document Figure 1-9 This utility model provides a bottom-discharge feeding device for the production of waste plastic molding pallets, comprising the following structure:

[0045] The base 1 has mounting seats 2 movably connected to the front and rear sides of both ends of the base 1. An auxiliary hydraulic rod 21 is fixed on the outer side of the mounting seat 2. A branch bracket 3 is detachably snapped onto the top of the base 1. A branch pipe 4 is fixed on the inner side of the branch bracket 3.

[0046] The upper base 5 has an upper template 51 that can be detachably fitted to its bottom.

[0047] The lower base 7 has a lower template 71 that can be detachably fitted onto its top.

[0048] In this embodiment, support frames 11 are fixedly provided on both the left and right sides of the base 1. The tops of the two support frames 11 are fixedly connected to the left and right sides of the two bridge frames 12 respectively. The middle part of the bottom end of the two bridge frames 12 is fixedly connected to the front and rear sides of the frame 13 respectively. The front and rear ends of the frame 13 are fixedly provided with mold closing hydraulic rods 14. The bottom output end of the mold closing hydraulic rod 14 is detachably snapped to the front and rear sides of the top of the docking seat 15 respectively. The bottom of the docking seat 15 is fixedly connected to the top of the upper base 5 by bolts.

[0049] The support frame 11, bridge frame 12 and frame 13 work together to complete the assembly of the mold closing hydraulic rod 14. The mold closing hydraulic rod 14 works with the docking seat 15 to complete the adjustment of the working height of the upper base 5 and the upper template 51, so as to realize the mold closing operation of the upper template 51 and the lower template 71, and cooperate with the subsequent waste plastic pallet injection molding production.

[0050] In this embodiment, the front end of the sub-support 3 is fixedly provided with a receiving pipe 31 that matches the discharge port of the injection molding machine, the inner side of the sub-support 3 is fixedly provided with an electric heating sleeve 32, and the bottom of the sub-support 3 is detachably snapped with a cover plate 33.

[0051] The receiving pipe 31 guides the molten waste plastic output from the injection molding machine outlet through the transition pipe 41 to the branch pipe 4. The branch pipe 4 cooperates with the injection pipe 42 to introduce the waste plastic into the tray forming cavity between the upper mold plate 51 and the lower mold plate 71, thus completing the injection molding production of the waste plastic tray.

[0052] The electric heating jacket 32 ​​works in conjunction with the branch pipe 4 to ensure that the waste plastic material inside the branch pipe 4 remains in a molten state.

[0053] In this embodiment, a transition pipe 41 is fixedly provided at the front end of the branch pipe 4. The bottom of the transition pipe 41 is fixedly connected to the rear outlet of the receiving pipe 31. Outlets are fixedly provided on both the left and right sides of the branch pipe 4. An injection pipe 42 is provided above each of the four outlets outside the branch pipe 4. The bottom of the injection pipe 42 is fixedly connected to the top of the branch support 3. The outlet of the injection pipe 42 extends between the upper template 51 and the lower template 71. The outer side of the outlet of the branch pipe 4 is sleeved with the middle part of the electric heating sleeve 32.

[0054] In accordance with the production requirements of the waste plastic pallet size, the branch pipe 4 adopts a one-out-four design to inject a large amount of molten waste plastic raw material into the pallet forming cavity, so as to complete the one-time forming of the waste plastic pallet between the upper mold 51 and the lower mold 71, which meets the production requirements of large injection area and large injection volume in the injection molding production of waste plastic pallets.

[0055] In this embodiment, top frames 6 are fixedly provided on both the left and right sides of the bottom of the upper base 5. The front and rear ends of the two top frames 6 are movably connected to the top output ends of the four auxiliary hydraulic rods 21, and guide rods 61 are fixedly provided on both the front and rear ends of the top frames 6.

[0056] In accordance with the production requirements of the waste plastic pallet size, while designing the mold closing hydraulic rod 14, auxiliary hydraulic rods 21 are designed on the left and right sides of the upper base 5. This design realizes the downward pressing action of the mold closing hydraulic rod 14 and the downward pulling action of the auxiliary hydraulic rod 21 during the mold closing operation of this equipment. This ensures the tight connection between the upper template 51 and the lower template 71, and avoids large gaps at the joint edge of the upper template 51 and the lower template 71 caused by the pressure rise when the waste plastic material is injected into the pallet forming cavity. This ensures the tightness of the mold closing between the upper template 51 and the lower template 71.

[0057] During the mold opening operation, the mold closing hydraulic rod 14 needs to be pulled up and the auxiliary hydraulic rod 21 needs to be pushed up in combination to avoid the large contact area between the waste plastic tray and the upper mold plate 51 and the lower mold plate 71 affecting the mold opening of the upper mold plate 51 and the lower mold plate 71.

[0058] In this embodiment, the middle part of the lower base 7 is movably sleeved with the outer side of the injection tube 42. The top left and right sides of the lower base 7 are fixedly provided with auxiliary frames 8. The front and rear ends of the auxiliary frames 8 are fixedly provided with guide seats 81. The top of the guide seats 81 is movably sleeved with the bottom of the guide rod 61. The top of the guide seats 81 at the front of the auxiliary frame 8 is fixedly provided with a card seat 82. The front and rear sides of the card seat 82 are respectively secured with an infrared beam sensor transmitter 83 and an infrared beam counter receiver. The light emission port of the infrared beam sensor transmitter 83 and the light reception port of the infrared beam counter receiver both extend to the top of the guide seat 81.

[0059] The guide rod 61 cooperates with the guide seat 81 to provide guidance for the lifting and lowering of the upper base 5 above the lower base 7.

[0060] In this embodiment, a tray forming cavity is formed between the bottom of the upper template 51 and the top of the lower template 71, and the middle part of the lower template 71 is movably sleeved with the outer side of the injection tube 42.

[0061] The pallet forming cavity is located between the upper template 51 and the lower template 71. The outlet of the injection tube 42 extends into the pallet forming cavity. Through the four injection tubes 42, the molten waste plastic can be fed and formed simultaneously in four directions within the pallet forming cavity.

[0062] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A bottom-discharge feeding device for the production of waste plastic molded pallets, characterized in that: Includes the following structure: The base (1) has mounting seats (2) movably connected to the front and rear sides of both the left and right ends of the base (1). An auxiliary hydraulic rod (21) is fixed on the outer side of the mounting seat (2). A branch bracket (3) is detachably snapped onto the top of the base (1). A branch pipe (4) is fixed on the inner side of the branch bracket (3). Upper base (5), the bottom of which is detachably fitted with an upper template (51); The lower base (7) has a lower template (71) detachably fitted on its top.

2. The bottom-discharge feeding device for producing waste plastic molded pallets according to claim 1, characterized in that: Support frames (11) are fixedly provided on both the left and right sides of the base (1). The tops of the two support frames (11) are fixedly connected to the left and right sides of the two bridge frames (12) respectively. The bottom middle parts of the two bridge frames (12) are fixedly connected to the front and rear sides of the frame (13) respectively. The front and rear ends of the frame (13) are fixedly provided with mold closing hydraulic rods (14). The bottom output end of the mold closing hydraulic rod (14) is detachably snapped to the front and rear sides of the top of the docking seat (15) respectively. The bottom of the docking seat (15) is fixedly connected to the top of the upper base (5) by bolts.

3. The bottom-discharge feeding device for producing waste plastic molded pallets according to claim 1, characterized in that: The front end of the sub-support (3) is fixed with a receiving pipe (31) that matches the discharge port of the injection molding machine. The inner side of the sub-support (3) is fixed with an electric heating sleeve (32). The bottom of the sub-support (3) is detachably snapped with a cover plate (33).

4. The bottom-discharge feeding device for producing waste plastic molded pallets according to claim 1, characterized in that: The front end of the branch pipe (4) is fixedly provided with a transition pipe (41), the bottom of which is fixedly connected to the rear outlet of the receiving pipe (31). The left and right sides of the branch pipe (4) are fixedly provided with outlets. The four outlets outside the branch pipe (4) are provided with injection pipes (42). The bottom of the injection pipes (42) is fixedly connected to the top of the branch support (3). The outlet of the injection pipes (42) extends to the space between the upper template (51) and the lower template (71). The outer side of the outlet of the branch pipe (4) is sleeved with the middle part of the electric heating sleeve (32).

5. The bottom-discharge feeding device for producing waste plastic molded pallets according to claim 1, characterized in that: The upper base (5) is fixed with top frames (6) on both the left and right sides of the bottom. The front and rear ends of the two top frames (6) are movably connected to the top output ends of four auxiliary hydraulic rods (21). The front and rear ends of the top frames (6) are fixed with guide rods (61).

6. The bottom-discharge feeding device for producing waste plastic molded pallets according to claim 1, characterized in that: The middle part of the lower base (7) is movably sleeved with the outer side of the injection tube (42). The top left and right sides of the lower base (7) are fixed with auxiliary frames (8). The front and rear ends of the auxiliary frames (8) are fixed with guide seats (81). The top of the guide seats (81) is movably sleeved with the bottom of the guide rod (61). The top of the guide seats (81) located in front of the auxiliary frame (8) is fixed with a card seat (82). The front and rear sides of the card seat (82) are respectively locked with an infrared beam sensor transmitter (83) and an infrared beam counter receiver. The light emission port of the infrared beam sensor transmitter (83) and the light receiving port of the infrared beam counter receiver both extend to the top of the guide seat (81).

7. The bottom-discharge feeding device for producing waste plastic molded pallets according to claim 1, characterized in that: A tray forming cavity is formed between the bottom of the upper template (51) and the top of the lower template (71), and the middle part of the lower template (71) is movably sleeved with the outer side of the injection tube (42).

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