High-precision assembled tray mold shaped like Chinese character'chuan 'and provided with ultra-long core-pulling mechanism

Abstract

The utility model belongs to the technical field of dies, and particularly relates to a high-precision assembled tray die shaped like a Chinese character'chuan 'and provided with an ultra-long core-pulling mechanism. The tray forming die comprises a tray forming lower die and a tray forming upper die. In the injection molding process, the tray forming lower mold and the tray forming upper mold are close to each other, so that the tray forming insert panel and the tray forming concave part are abutted and matched to form a complete cavity, and the multidirectional long core-pulling assembly is abutted and fixed with the periphery of the tray forming insert panel; a core pulling structure in the multidirectional long core pulling assembly is inserted into the tray forming insert panel, a molten material is subjected to injection molding and shunting through the injection molding and shunting piece and enters the cavity, mold opening is conducted after injection molding is completed, the multidirectional long core pulling assembly is moved to the end away from the tray forming insert panel, and the core pulling structure is subjected to core pulling from the cavity. On the premise that the core pulling distance is shortened, ultra-long-distance core pulling is achieved, stroke control is accurate, and angle deviation during core pulling is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and relates to a high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism. Background Art

[0002] A tray is a very widely used plastic product for people to carry items in daily life and products in factories. The tray is mainly injection-molded by a tray injection mold. For large trays, since some corresponding grooves need to be formed, a core-pulling structure is required for the core-pulling process. When the existing tray mold performs ultra-long-distance core-pulling, using unilateral core-pulling will result in a longer length of the side limit sliding structure, requiring a large floor area, and it is easy to have position and angle offsets during core-pulling, and the accuracy of stroke control is relatively average. Therefore, there is an urgent need to design a high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism that can overcome the above defects.

[0003] In order to overcome the deficiencies of the prior art, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a fast food restaurant tray mold [Application No.: 201410151124.X], the fast food restaurant tray mold includes an upper template and a lower template. The lower template is provided with 4 cavities, the cavities are in a cross-shaped cavity, and 2 circular concave cavities and 2 oval concave cavities are arranged in the cross-shaped cavity. Summary of the Invention

[0004] The purpose of the utility model is to provide a high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism for the above problems.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism includes a tray forming lower mold and a tray forming upper mold. An injection molding shunt part is arranged above the tray forming upper mold. A tray forming insert plate is arranged between the tray forming lower mold and the tray forming upper mold. A tray forming concave part is arranged in the tray forming upper mold. The position of the tray forming insert plate corresponds to and the shape matches that of the tray forming concave part. A multi-directional long core-pulling component that can perform reciprocating linear motion along one end close to or away from the tray forming insert plate is also arranged between the tray forming lower mold and the tray forming upper mold. The position of the multi-directional long core-pulling component corresponds to that of the tray forming insert plate.

[0007] In the above high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism, the multi-directional long core-pulling component includes a side core-pulling part, a head end abutting part, and a tail end abutting part. The side core-pulling part, the head end abutting part, and the tail end abutting part are respectively in abutting cooperation with the tray forming insert plate.

[0008] In the above-mentioned high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism, the side core-pulling member includes two side sliders disposed between the lower tray-forming mold and the upper tray-forming mold. A number of long core-pulling rods extending into the tray-forming insert are provided on the side sliders, and two opposite long core-pulling rods are abutted and cooperated with each other.

[0009] In the above-mentioned high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism, a protrusion is provided at the end of one of the two opposite long core-pulling rods, and a groove is provided at the end of the other. The shapes of the protrusion and the groove are adapted to each other.

[0010] In the above-mentioned high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism, the tail of the long core-pulling rod is fixed to the side slider by bolts. Two first limit sliders are provided on the side of the lower tray-forming mold, and two first limit sliders extending into the first limit sliders are provided at the bottom of the side slider. The first limit slider is slidably engaged with the first limit slider.

[0011] In the above-mentioned high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism, the head abutting member includes a head clamping plate disposed between the lower tray-forming mold and the upper tray-forming mold. The head clamping plate is abutted and cooperated with the tray-forming insert.

[0012] In the above-mentioned high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism, two second limit sliders are provided at the head of the lower tray-forming mold, and two second limit sliders extending into the second limit sliders are provided at the bottom of the head clamping plate. The second limit slider is slidably engaged with the second limit slider.

[0013] In the above-mentioned high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism, the tail abutting member includes a tail clamping plate disposed between the lower tray-forming mold and the upper tray-forming mold. The tail clamping plate is abutted and cooperated with the tray-forming insert.

[0014] In the above-mentioned high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism, two third limit sliders are provided at the tail of the lower tray-forming mold, and two third limit sliders extending into the third limit sliders are provided at the bottom of the tail clamping plate. The third limit slider is slidably engaged with the third limit slider.

[0015] In the above-mentioned high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism, the injection molding shunt member includes an injection molding main board and an injection molding shunt board disposed above the upper tray-forming mold.

[0016] Compared with the existing technology, the advantages of the present utility model are as follows:

[0017] 1. During the injection molding process, the utility model brings the tray molding lower mold and the tray molding upper mold close to each other, so that the tray molding panel and the tray molding recess are abutted and matched to form a complete cavity, the multi-directional long core pulling component is abutted and fixed around the tray molding panel, the core pulling structure in the multi-directional long core pulling component is inserted into the tray molding panel, and the molten material is injection-molded and diverted through the injection molding diverter and enters the cavity. After the injection molding is completed, the mold is opened, the multi-directional long core pulling component is moved to the end away from the tray molding panel, and the core pulling structure is pulled out of the cavity. A symmetrical core pulling structure is adopted to achieve ultra-long distance core pulling while shortening the core pulling distance. The stroke control is precise to avoid angle deviation during core pulling.

[0018] 2. During injection molding, the two long core-pulling rods facing each other are abutted against each other, and the protrusion and the groove are molded together to avoid gaps and achieve good sealing performance.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a partial structural schematic diagram of the utility model.

[0022] Figure 3 It is a partial structural schematic diagram of the utility model in another direction.

[0023] Figure 4 It is a schematic diagram of the structure of the tray forming upper die.

[0024] In the figure: tray molding lower mold 1, tray molding upper mold 2, injection molding diverter 3, tray molding panel 4, tray molding recess 5, multi-directional long core pulling assembly 6, side core pulling member 7, head end abutment 8, tail abutment 9, side slide 10, long core pulling rod 11, first limit slide 12, first limit slider 13, head clamping plate 14, second limit slide 15, second limit slider 16, tail clamping plate 17, third limit slide 18, third limit slider 19, injection molding main board 20, injection molding diverter plate 21. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings.

[0026] like Figure 1-4As shown in the figure, a high-precision Sichuan-character assembled tray mold with an ultra-long core-pulling mechanism includes a lower tray forming mold 1 and an upper tray forming mold 2. An injection molding splitter 3 is provided above the upper tray forming mold 2. A tray forming insert 4 is provided between the lower tray forming mold 1 and the upper tray forming mold 2. A tray forming recess 5 is provided in the upper tray forming mold 2. The tray forming insert 4 corresponds to the position of the tray forming recess 5 and is matched in shape. A multi-directional long core-pulling assembly 6 that can move linearly back and forth along one end close to or away from the tray forming insert 4 is also provided between the lower tray forming mold 1 and the upper tray forming mold 2. The multi-directional long core-pulling assembly 6 corresponds to the position of the tray forming insert 4.

[0027] In this embodiment, during the injection molding process, the lower tray forming mold 1 and the upper tray forming mold 2 are moved closer to each other so that the tray forming insert 4 and the tray forming recess 5 are abutted and cooperated to form a complete cavity. The multi-directional long core-pulling assembly 6 abuts and fixes around the tray forming insert 4. The core-pulling structure in the multi-directional long core-pulling assembly 6 is inserted into the tray forming insert 4. The molten material is injection-molded and split through the injection molding splitter 3 and enters the cavity. After the injection molding is completed, the mold is opened. The multi-directional long core-pulling assembly 6 is moved towards the end away from the tray forming insert 4, and the core-pulling structure is core-pulled from the cavity. A symmetrical core-pulling structure is adopted to achieve ultra-long-distance core-pulling on the premise of shortening the core-pulling distance. The stroke control is precise, and the angle deviation during core-pulling is avoided.

[0028] Combined with Figure 1-4 As shown in the figure, the multi-directional long core-pulling assembly 6 includes a side core-pulling part 7, a head-end abutting part 8, and a tail-end abutting part 9. The side core-pulling part 7, the head-end abutting part 8, and the tail-end abutting part 9 are respectively abutted and cooperated with the tray forming insert 4.

[0029] Specifically, during injection molding, the core-pulling structure of the side core-pulling part 7 is inserted into the tray forming insert 4. The head-end abutting part 8 and the tail-end abutting part 9 are respectively abutted and cooperated with the tray forming insert 4. After the injection molding is completed, the mold is opened. The side core-pulling part 7 is moved towards the end away from the tray forming insert 4, and the core-pulling structure is core-pulled from the cavity. A symmetrical core-pulling structure is adopted to achieve ultra-long-distance core-pulling on the premise of shortening the core-pulling distance. The stroke control is precise, and the angle deviation during core-pulling is avoided. Then, the head-end abutting part 8 and the tail-end abutting part 9 are moved towards the end away from the tray forming insert 4 to form sufficient ejection space, which is convenient for ejecting and demolding the plastic part later and avoiding the situation of jamming.

[0030] Combined with Figure 2 、 Figure 3As shown, the side core pulling member 7 includes two side slides 10 arranged between the tray forming lower mold 1 and the tray forming upper mold 2, and the side slides 10 are provided with a plurality of long core pulling rods 11 extending into the tray forming panel 4, and the two opposite long core pulling rods 11 are abutted and matched.

[0031] In this embodiment, during injection molding, the long core pulling rod 11 of the side slide 10 is inserted into the tray molding panel 4 to assist in molding the groove of the plastic part. After the injection molding is completed, the mold is opened, and the side slide 10 is moved to the end away from the tray molding panel 4, and the long core pulling rod 11 is pulled out of the cavity. A symmetrical core pulling structure is adopted to achieve ultra-long distance core pulling while shortening the core pulling distance. The stroke control is precise to avoid angle deviation during core pulling.

[0032] One of the opposite ends of the long core-pulling rods 11 is provided with a protrusion, and the other end is provided with a groove, and the shapes of the protrusion and the groove are matched.

[0033] In this embodiment, during injection molding, two opposite long core-pulling rods 11 are in contact with each other, and the protrusion and the groove are molded together to avoid gaps and achieve good sealing performance.

[0034] Combination Figure 3 As shown, the tail end of the long core pulling rod 11 is fixed to the side slide 10 by bolts, the side of the tray forming lower mold 1 is provided with two first limit slides 12, and the bottom of the side slide 10 is provided with two first limit slide blocks 13 extending into the first limit slide 12, and the first limit slide blocks 13 are slidably matched with the first limit slide 12.

[0035] In this embodiment, the tail end of the long core pulling rod 11 is fixed to the side slide 10 by bolts, and disassembly and assembly are simple and convenient. During the core pulling process, the first limit slider 13 at the bottom of the side slide 10 slides along the first limit slide 12 to avoid position displacement during core pulling. The first limit slide 12 has a long stroke, which can facilitate long-distance core pulling.

[0036] The head end abutment member 8 includes a head clamping plate 14 arranged between the pallet forming lower mold 1 and the pallet forming upper mold 2, the head clamping plate 14 abuts and cooperates with the pallet forming insert plate 4, the head of the pallet forming lower mold 1 is provided with two second limit slides 15, and the bottom of the head clamping plate 14 is provided with two second limit slides 16 extending into the second limit slide 15, and the second limit slide 16 slides with the second limit slide 15.

[0037] In this embodiment, during injection molding, the head clamping plate 14 abuts against the head of the tray molding panel 4 to assist in molding the plastic part and achieve sealing of the head. After the injection molding is completed, the head clamping plate 14 is moved away from one end of the tray molding panel 4 to form sufficient ejection space. The second limit slider 16 slides with the second limit slide 15 to avoid angular deviation during movement.

[0038] Combination Figure 3 As shown, the tail abutment member 9 includes a tail clamping plate 17 arranged between the tray forming lower mold 1 and the tray forming upper mold 2, the tail clamping plate 17 is abutted and matched with the tray forming insert plate 4, the tail of the tray forming lower mold 1 is provided with two third limit slides 18, and the bottom of the tail clamping plate 17 is provided with two third limit slides 19 extending into the third limit slide 18, and the third limit slide 19 is slidably matched with the third limit slide 18.

[0039] In this embodiment, during injection molding, the tail clamping plate 17 abuts against the head of the tray molding panel 4 to assist in molding the plastic part and achieve sealing of the head. After the injection molding is completed, the tail clamping plate 17 is moved away from one end of the tray molding panel 4 to form sufficient ejection space. The third limit slider 19 slides with the third limit slide 18 to avoid angular deviation during movement.

[0040] Combination Figure 1 As shown, the injection molding diverter 3 includes an injection molding main board 20 and an injection molding diverter plate 21 which are arranged above the tray molding upper mold 2.

[0041] In this embodiment, during injection molding, the molten material is injected from the injection molding main board 20 and then diverted through the injection molding diverter plate 21, thereby accelerating the injection molding rate.

[0042] The working principle of the utility model is:

[0043] During the injection molding process, the tray molding lower mold 1 and the tray molding upper mold 2 are brought close to each other, so that the tray molding panel 4 and the tray molding recess 5 are abutted and matched to form a complete cavity, and the multi-directional long core pulling component 6 is abutted and fixed on all sides of the tray molding panel 4. The core pulling structure in the multi-directional long core pulling component 6 is inserted into the tray molding panel 4, and the molten material is injected from the injection molding main board 20, and then diverted through the injection molding diverter plate 21, which speeds up the injection molding rate and enters the cavity. During injection molding, the long core pulling rod 11 of the side slide 10 is inserted into the tray molding panel 4 to assist in molding the groove of the plastic part. After the injection molding is completed, the mold is opened, and the side slide 10 is moved away from the tray molding panel 4. The long core pulling rod 11 is pulled out of the cavity. A symmetrical core pulling structure is adopted to achieve ultra-long distance core pulling while shortening the core pulling distance. The stroke control is precise to avoid angle deviation during core pulling.

[0044] During injection molding, the two relatively long core-pulling rods 11 are abutted against each other, and the protrusions and grooves are molded together to avoid gaps, and the sealing is good. The tail of the long core-pulling rod 11 is fixed to the side slide 10 by bolts, and the disassembly and assembly are simple and convenient. During the core pulling process, the first limit slider 13 at the bottom of the side slide 10 slides along the first limit slide 12 to avoid position deviation during core pulling. The first limit slide 12 has a long stroke, which can easily realize long-distance core pulling.

[0045] During injection molding, the head clamping plate 14 abuts against the head of the tray molding panel 4 to assist in molding the plastic part and achieve sealing of the head. After injection molding, the head clamping plate 14 is moved away from the end of the tray molding panel 4 to form sufficient ejection space. The second limit slider 16 slides with the second limit slide 15 to avoid angular deviation during movement.

[0046] During injection molding, the tail clamping plate 17 abuts against the head of the tray molding panel 4 to assist in molding the plastic part and achieve sealing of the head. After injection molding is completed, the tail clamping plate 17 is moved away from one end of the tray molding panel 4 to form sufficient ejection space. The third limit slider 19 slides with the third limit slide 18 to avoid angular deviation during movement.

[0047] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the spirit of the present invention.

[0048] Although the present invention uses the terms such as tray molding lower mold 1, tray molding upper mold 2, injection molding diverter 3, tray molding panel 4, tray molding recess 5, multi-directional long core pulling assembly 6, side core pulling member 7, head end abutment 8, tail abutment 9, side slide 10, long core pulling rod 11, first limit slide 12, first limit slider 13, head clamping plate 14, second limit slide 15, second limit slider 16, tail clamping plate 17, third limit slide 18, third limit slider 19, injection molding main board 20, injection molding diverter plate 21, etc. more frequently, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention, and interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A high-precision Sichuan-character assembled pallet mold with an ultra-long core-pulling mechanism, comprising a pallet forming lower mold (1) and a pallet forming upper mold (2), characterized in that, An injection molding diverter (3) is provided above the tray molding upper mold (2); a tray molding panel (4) is provided between the tray molding lower mold (1) and the tray molding upper mold (2); a tray molding recess (5) is provided in the tray molding upper mold (2); the positions of the tray molding panel (4) and the tray molding recess (5) correspond and their shapes match; a multi-directional long core pulling component (6) is also provided between the tray molding lower mold (1) and the tray molding upper mold (2) and can perform reciprocating linear motion along one end close to or away from the tray molding panel (4); the multi-directional long core pulling component (6) corresponds to the position of the tray molding panel (4).

2. The high-precision "Chuan"-shaped assembled pallet mold with an ultra-long core-pulling mechanism according to claim 1 is characterized in that: The multi-directional long core pulling assembly (6) comprises a side core pulling piece (7), a head end abutment piece (8) and a tail abutment piece (9), and the side core pulling piece (7), the head end abutment piece (8) and the tail abutment piece (9) are respectively abutted and matched with the pallet forming panel (4).

3. The high-precision "Chuan"-shaped assembled pallet mold with an ultra-long core-pulling mechanism according to claim 2 is characterized in that: The side core pulling member (7) comprises two side slides (10) arranged between the tray forming lower mold (1) and the tray forming upper mold (2), and the side slides (10) are provided with a plurality of long core pulling rods (11) extending into the tray forming panel (4), and two opposite long core pulling rods (11) are abutted and matched with each other.

4. The high-precision "Chuan"-shaped assembled pallet mold with an ultra-long core-pulling mechanism according to claim 3 is characterized in that: One of the opposite ends of the long core-pulling rods (11) is provided with a protrusion, and the other end is provided with a groove, and the shapes of the protrusion and the groove are matched.

5. The high-precision "Chuan"-shaped assembled pallet mold with an ultra-long core-pulling mechanism according to claim 4 is characterized in that: The tail of the long core pulling rod (11) is fixed to the side slide (10) by bolts, and the side of the tray forming lower mold (1) is provided with two first limit slides (12), and the bottom of the side slide (10) is provided with two first limit sliders (13) extending into the first limit slider (12), and the first limit sliders (13) are slidably matched with the first limit slider (12).

6. The high-precision "Chuan"-shaped assembled pallet mold with an extra-long core-pulling mechanism according to claim 5, characterized in that: The head end abutment member (8) comprises a head clamping plate (14) arranged between the tray forming lower die (1) and the tray forming upper die (2), and the head clamping plate (14) is abutted and matched with the tray forming insert plate (4).

7. The high-precision "Chuan"-shaped assembled pallet mold with an extra-long core-pulling mechanism according to claim 6, characterized in that: The head of the tray forming lower die (1) is provided with two second limit slides (15), and the bottom of the head clamping plate (14) is provided with two second limit slides (16) extending into the second limit slides (15), and the second limit slides (16) are slidably matched with the second limit slides (15).

8. The high-precision "Chuan"-shaped assembled pallet mold with an extra-long core-pulling mechanism according to claim 7, characterized in that: The tail abutment member (9) comprises a tail clamping plate (17) arranged between the tray forming lower die (1) and the tray forming upper die (2), and the tail clamping plate (17) is abutted and matched with the tray forming panel (4).

9. The high-precision "Chuan"-shaped assembled pallet mold with an extra-long core-pulling mechanism according to claim 8, characterized in that: The tail of the tray forming lower die (1) is provided with two third limit slides (18), and the bottom of the tail clamping plate (17) is provided with two third limit slides (19) extending into the third limit slides (18), and the third limit slides (19) are slidably matched with the third limit slides (18).

10. The high-precision "Chuan"-shaped assembled pallet mold with an extra-long core-pulling mechanism according to claim 9, characterized in that: The injection molding flow divider (3) comprises an injection molding main board (20) and an injection molding flow divider plate (21) which are arranged above the tray molding upper mold (2).

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