A blow molding machine die head with adjustable perspective angle for plastic products

By employing an adjusting worm gear in the blow molding machine die head to mesh with the turbine teeth of the perspective line flow divider ring, the problem of inaccurate adjustment of the liquid level line flow divider ring angle in the prior art is solved, achieving precise adjustment of the perspective line flow divider ring, which is suitable for adjusting the liquid level line position in the blow molding machine die head.

CN121316218BActive Publication Date: 2026-03-06SHANTOU WEILI PLASTIC MASCH FACTORY CO LTD
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Patent Information

Application Number
CN202511882169.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-12-15
Publication Date
2026-03-06
Estimated Expiration
2045-12-15

AI Technical Summary

Technical Problem

Existing blow molding machine die heads cannot achieve precise adjustment of the deflection angle of the liquid level line diversion ring, resulting in inaccurate liquid level line position adjustment.

Method used

The worm gear meshes with the turbine teeth of the perspective line splitter ring. By adjusting the worm gear, the perspective line splitter ring is rotated from the side, thus achieving precise angle adjustment of the perspective line splitter ring.

Benefits of technology

It enables arbitrary angle adjustment of the flow divider ring within a confined space, improving the accuracy of liquid level line position adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a blow molding machine die head with adjustable perspective angle for plastic products. It includes a main flow divider block with several flow chambers. Each flow chamber contains an inner core rod, and an inner core sleeve is fitted onto the inner core rod. Below the main flow divider block are a perspective line flow divider block and a perspective line flow divider seat. A perspective line flow divider ring is rotatably mounted within the perspective line flow divider seat. An adjusting worm gear is located on the side of the perspective line flow divider seat, and a turbine tooth meshes with the adjusting worm gear on the perspective line flow divider ring. This invention uses an adjusting worm gear to drive the perspective line flow divider ring to rotate from the side. Compared to existing technologies, the meshing of the adjusting worm gear with the turbine tooth of the perspective line flow divider ring allows for precise adjustment of the perspective line flow divider ring's deflection angle, facilitating arbitrary angle adjustment of the perspective line flow divider ring even in confined spaces.
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Description

Technical Field

[0001] This invention relates to the field of blow molding machine technology, and in particular to a blow molding machine die head with an adjustable perspective angle for plastic products. Background Technology

[0002] Blow molding machines are commonly used to produce plastic buckets and other containers for filling chemical liquids and pharmaceutical solutions. During production, molten plastic is injected into the blow molding die of the machine. The die first extrudes a preform, which is then blown into a plastic bucket or bottle. For some plastic bottles used to hold chemical reagents, a vertical viewing line, also known as a liquid level line, is typically required on the bottle body. This line facilitates observation of the remaining amount of chemical reagent inside the bottle. To ensure that the liquid level line is precisely positioned at the parting line of the bottle, the circumferential position of the liquid level line distribution ring needs to be adjusted.

[0003] Chinese patent CN202022819356.1 discloses a liquid level line diversion ring assembly. This assembly features an axially extending rectangular groove at the liquid level line diversion ring. An eccentric boss of an angle adjusting bolt is inserted into this groove. When the angle adjusting bolt rotates along its own axis, it causes a circumferential displacement of the eccentric cam, thereby rotating the liquid level line diversion ring. While this design facilitates adjusting the liquid level line position, and the eccentric cam's circumferential displacement only rotates the diversion ring, it cannot achieve precise adjustment of the diversion ring's deflection angle. Therefore, we propose a blow molding machine die head that allows for arbitrary adjustment of the perspective angle of plastic products. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a blow molding machine die head with an adjustable perspective line angle for plastic products.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a blow molding machine die head with adjustable perspective line angle for plastic products, comprising a main flow divider block, the main flow divider block having a plurality of flow chambers, an inner core rod being provided in each flow chamber, an inner core sleeve being fitted onto the inner core rod, a perspective line flow divider block being provided below the main flow divider block, a perspective line flow divider seat being provided on the lower side of the perspective line flow divider block, a perspective line flow divider ring being rotatably disposed within the perspective line flow divider seat, the inner core rod being inserted through the middle ring opening of the perspective line flow divider ring, an adjusting worm gear being provided on the side of the perspective line flow divider seat, a turbine tooth being provided at the perspective line flow divider ring to mesh with the adjusting worm gear, a guide channel of the perspective line flow divider block being connected to a flow groove of the perspective line flow divider ring, and a flow groove being connected to a perspective line outlet of the perspective line flow divider ring.

[0006] To further elaborate, the guide channel of the perspective line diverter block and the perspective line diverter seat are located at different heights. The end of the guide channel of the perspective line diverter block is provided with a direct current port, which is located above the drainage groove of the perspective line diverter ring.

[0007] To further elaborate, the perspective line diverter block is provided with a second adjusting rod for adjusting the amount of plastic flowing into the direct current port.

[0008] To elaborate further, the perspective line diversion ring is provided with a diversion rib, and the perspective line outlet is located at the diversion rib.

[0009] To elaborate further, the main flow divider block is provided with a T-shaped main flow divider channel, which is connected to the spiral flow groove of the inner core sleeve.

[0010] To elaborate further, a first adjusting rod for adjusting the flow rate of plastic on both sides is provided at the branch point of the main diversion channel.

[0011] To elaborate further, a blank outlet is provided below the fluorometer diverter, and the end of the inner core rod is located inside the cavity of the blank outlet.

[0012] To elaborate further, it also includes a main flow block for the perspective line, and each branch outlet of the main flow block for the perspective line is provided with a receiving block, and the flow channel of the receiving block is connected to the guide channel of the perspective line branch block.

[0013] The beneficial effects of this invention are as follows: This invention uses an adjusting worm gear to drive the iris splitter ring to rotate from the side. Compared with the prior art, the adjusting worm gear meshes with the turbine teeth of the iris splitter ring, which can achieve precise adjustment of the iris splitter ring deflection angle, making it convenient to adjust the iris splitter ring at any angle in a confined space. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a cross-sectional view of the structure of the present invention at the guide channel of the perspective line splitter block.

[0016] Figure 3 This is a cross-sectional view of the structure of the present invention at the perspective line distributor seat.

[0017] Figure 4 This is a cross-sectional view of the overall structure of the present invention.

[0018] Figure 5 This is a cross-sectional view of the structure of the present invention at the main shunt block.

[0019] Figure 6 This is a schematic diagram of the structure of the perspective line diversion ring.

[0020] Reference numerals: 10. Main flow divider block; 101. Embryo flow chamber; 102. Main flow channel; 103. Branch channel opening; 11. Inner core rod; 12. Inner core sleeve; 121. Spiral flow groove; 13. Embryo outlet nozzle; 20. Transparent line flow divider block; 21. Guide channel; 22. Straight flow outlet; 30. Transparent line flow divider seat; 40. Transparent line flow divider ring; 41. Intermediate ring opening; 42. Turbine teeth; 43. Drainage groove; 44. Transparent line outlet; 45. Flow divider rib; 50. Adjusting worm gear; 61. First adjusting rod; 62. Second adjusting rod; 70. Transparent line main flow block; 701. Branch outlet; 71. Flow receiving block; 711. Flow passage. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Combined with appendix Figure 1 and attached Figure 4 As shown, a blow molding machine die head with adjustable perspective line angle for plastic products includes a main flow divider block 10 and a perspective line main flow divider block 70. The main flow divider block 10 is provided with a plurality of flow chambers 101. An inner core rod 11 is provided in the flow chamber 101. An inner core sleeve 12 is fitted on the inner core rod 11. A perspective line flow divider block 20 is provided below the main flow divider block 10. A perspective line flow divider seat 30 is provided on the lower side of the perspective line flow divider block 20. A perspective line flow divider ring 40 is rotatably arranged in the perspective line flow divider seat 30. The inner core rod 11 passes through the middle ring opening 41 of the perspective line flow divider ring 40. A blanking nozzle 13 is provided below the perspective line flow divider seat 30. The end of the inner core rod 11 is located in the cavity of the blanking nozzle 13.

[0023] Combined with appendix Figure 2 and attached Figure 5 As shown, the main diversion block 10 has a T-shaped main diversion channel 102, which is connected to the spiral flow groove 121 of the inner core sleeve 12. A first adjusting rod 61 for adjusting the flow rate of plastic on both sides is provided at the branch point 103 of the main diversion channel 102. The molten plastic used to form the main body of the bottle flows into the main diversion block 10 through the main diversion channel 102, combined with the attached... Figure 4 and attached Figure 5 As shown, the embryo flow is diverted through the branch point 103 to the left and right embryo flow chambers 101. (See attached diagram.) Figure 3 As shown, the main molten plastic flows downward along the spiral flow channel 121 of the inner core sleeve 12, passes through the perspective line diversion block 20, and flows into the middle ring opening 41 of the perspective line diversion ring 40.

[0024] Combined with appendix Figure 2 and attached Figure 3As shown, an adjusting worm gear 50 is provided on the side of the perspective line splitter seat 30, and a turbine tooth 42 that meshes with the adjusting worm gear 50 is provided at the perspective line splitter ring 40. The guide channel 21 of the perspective line splitter block 20 is connected to the guide groove 43 of the perspective line splitter ring 40, as shown in the attached figure. Figure 6 As shown, the flow channel 43 is connected to the flow outlet 44 of the flow dividing ring 40.

[0025] Combined with appendix Figure 2 and attached Figure 3 As shown, the guide channel 21 of the perspective line diverter block 20 and the perspective line diverter seat 30 are located at different heights. The end of the guide channel 21 of the perspective line diverter block 20 is provided with a direct current port 22, which is located above the diversion groove 43 of the perspective line diverter ring 40.

[0026] Combined with appendix Figure 3 and attached Figure 6 As shown, the ray diverter block 20 is equipped with a second adjusting rod 62 for adjusting the plastic inflow rate of the direct flow port 22. The ray diverter ring 40 is provided with a diverter rib 45, and the ray outlet 44 is located at the diverter rib 45.

[0027] Each branch outlet 701 of the main flow block 70 of the perspective line is provided with a receiving block 71, and the flow channel 711 of the receiving block 71 is connected to the guide channel 21 of the perspective line branch block 20. Specifically, as shown in the attached figure Figure 2 The arrow path indicates that the molten plastic used to form the see-through lines of the bottle flows from the branch outlet 701 of the main flow block 70 into the flow channel 711 of the receiving block 71, then from the flow channel 711 of the receiving block 71 into the guide channel 21 of the see-through line branch block 20, and then along the guide channel 21 into the main outlet 22. (See attached diagram.) Figure 3 As shown, the molten plastic from the direct flow port 22 flows directly into the drainage groove 43 of the direct flow ring 40. (See attached diagram.) Figure 6 As shown, the molten plastic flowing into the inlet channel 43 will flow out from the molten plastic outlet 44. Since the upper end of the diversion rib 45 of the molten plastic outlet ring 40 will divide the incoming main molten plastic, the divided main molten plastic will converge again at the lower end of the diversion rib 45. At this time, the molten plastic outlet ring 45 contains the molten plastic of ...

[0028] This invention employs an adjusting worm gear 50 to laterally rotate the perspective line flow divider ring 40. Compared to existing technologies, the adjusting worm gear 50 meshes with the turbine teeth 42 of the perspective line flow divider ring 40, enabling precise adjustment of the deflection angle of the perspective line flow divider ring 40. This facilitates arbitrary angle adjustment of the perspective line flow divider ring 40 within confined spaces. With future technological upgrades, AI algorithms can be used to achieve automatic precision compensation adjustment of the adjusting worm gear 50.

[0029] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] It should be understood that the terms "first," "second," etc., are used in this invention to describe various types of information, but these terms are not limited to them; they are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0031] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the technical scope of the present invention.

Claims

1. A blow molding machine die capable of adjusting the perspective line angle of a plastic product, comprising a main distribution block (10) provided with a plurality of embryo flow cavities (101), an inner core rod (11) is arranged in the embryo flow cavity (101), and an inner core sleeve (12) is arranged on the inner core rod (11), characterized in that: The lower side of the perspective line shunt block (20) is provided with a perspective line shunt seat (30), the perspective line shunt ring (40) is rotatably arranged in the perspective line shunt seat (30), the inner core rod (11) passes through the middle ring opening (41) of the perspective line shunt ring (40), the side of the perspective line shunt seat (30) is provided with an adjusting worm (50), the perspective line shunt ring (40) is provided with a turbine tooth portion (42) engaged with the adjusting worm (50), the flow guide channel (21) of the perspective line shunt block (20) is in communication with the drainage groove (43) of the perspective line shunt ring (40), and the drainage groove (43) is in communication with the perspective line outflow port (44) of the perspective line shunt ring (40). The flow guide channel (21) of the perspective line shunt block (20) and the perspective line shunt seat (30) are located at different height positions, the end of the flow guide channel (21) of the perspective line shunt block (20) is provided with a straight flow port (22), the straight flow port (22) is located above the drainage groove (43) of the perspective line shunt ring (40), the perspective line shunt block (20) is provided with a second adjusting rod (62) for adjusting the plastic inflow amount of the straight flow port (22), the perspective line shunt ring (40) is provided with a shunt rib (45), and the perspective line outflow port (44) is arranged at the shunt rib (45); the main shunt block (10) is provided with a T-shaped main shunt channel (102), and the main shunt channel (102) is in communication with the spiral flow groove (121) of the inner core sleeve (12). The perspective line main flow block (70) is further provided with a flow connecting block (71) at each branch flow port (701) of the perspective line main flow block (70), and the flow channel (711) of the flow connecting block (71) is in communication with the flow guide channel (21) of the perspective line shunt block (20).

2. A blow molding machine die for randomly adjusting the angle of the perspective line of a plastic product according to claim 1, characterized in that: The bifurcation port (103) of the main shunt channel (102) is provided with a first adjusting rod (61) for adjusting the plastic flow on both sides.

3. The blow molding machine die of claim 1, wherein: The lower side of the perspective line shunt seat (30) is provided with an embryo outlet nozzle (13), and the end of the inner core rod (11) is located in the cavity of the embryo outlet nozzle (13).

Citation Information

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