T-shaped die machine head
By designing the component structure of the T-shaped mold head, the problems of concentricity error and uneven wall thickness of the mold head were solved, achieving uniformity in gloss and wall thickness of the product and improving the quality of the product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU DEAO MOULD CO LTD
- Filing Date
- 2025-02-18
- Publication Date
- 2026-04-21
AI Technical Summary
When using traditional mold heads, the concentricity between the die nozzle and the die head core is prone to errors, resulting in large errors in the cross-sectional geometry of the product. The product surface has transverse wrinkles and longitudinal lines, is dull and rough, and it is difficult to achieve uniform adjustment of single-layer wall thickness, thus affecting product quality.
A T-shaped die head was designed, including a die head body, a flow channel core, a die head flange, a die head core, a vacuum sleeve, a die nozzle, and other components. The concentricity of the die nozzle and the die head core can be adjusted by a detachable die head cover and a die head heating coil, and a power transmission chain is established by adjusting the gear shaft to ensure the precision of the product geometry and the uniformity of the wall thickness.
It achieves the concentricity maintenance of the die nozzle and the die head core, improves the surface gloss of the product, improves the uniformity of wall thickness, and ensures the precision of the product geometry. It solves the problems of eccentricity and uneven wall thickness of traditional die heads and improves the quality of the products.
Smart Images
Figure CN224145319U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold head technology, specifically a T-shaped mold head. Background Technology
[0002] The main function of the die head is to change the material's movement from a spiral to a linear motion. The die head alters the direction of the melt flow from the extruder, transforming it from a spiral to a linear motion. This ensures that the material passes through the die head evenly and stably. Inside the die head, shear flow generates the necessary molding pressure, guaranteeing the compactness of the product. This pressure helps the plastic product achieve the required density and strength during molding. The internal design of the die head subjects the material to shear forces as it passes through, further plasticizing it and ensuring that the plastic melt reaches the ideal plasticized state before molding. The die head design also ensures that the plastic melt forms the required cross-sectional shape as it passes through, thus producing plastic products that meet design requirements.
[0003] However, it still has some drawbacks. For example, when using a traditional mold head, the concentricity between the die nozzle and the core of the die head is prone to errors, resulting in large errors in the cross-sectional geometric dimensions of the product, bending of the product, and transverse wrinkles on the surface. When the angle of the flow divider cone is too large, there are scorch marks on the surface of the product, the material flow resistance is large, and the material is easily decomposed inside the die head. When the shaping section is relatively short, there are longitudinal lines on the surface of the product, and the surface is dull and rough. The cross-sectional geometric dimensions of the product also have large errors.
[0004] To address the aforementioned issues, this application proposes a T-shaped mold head. Utility Model Content
[0005] The purpose of this utility model is to provide a T-shaped mold head to solve the problems mentioned in the background art, where the mold head can only adjust the eccentricity of the total wall thickness of the product, but cannot adjust the eccentricity of the single layer wall thickness. As a result, it is difficult to ensure the uniformity of the wall thickness of each layer and to prevent the occurrence of wall eccentricity, which leads to the inability to guarantee the quality of the product.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a T-shaped mold head, comprising a head body, a flow channel core movably connected to the inner wall of the head body, a head flange fixedly connected to the upper outer surface of the head body, a head core fixedly connected to the inner wall of the head flange, a vacuum sleeve detachably connected to the outer surface of one end of the head core, a clamping screw cap detachably connected to the outer surface of one end of the vacuum sleeve, and a mold nozzle detachably connected to the outer surface of the other end of the head core.
[0007] Preferably, a cylinder mounting base is fixedly connected to the outer wall of the machine head body, and a cylinder is fixedly connected to the upper outer surface of the cylinder mounting base.
[0008] Preferably, a lower cylinder mounting base is fixedly connected to the lower outer wall of the machine head body, and a fixing plate and a support base are fixedly connected to the lower outer surface of the lower cylinder mounting base, with the fixing plate located on the upper outer surface of the support base.
[0009] Preferably, a swing arm 1 and a swing arm 2 are movably connected to one end of the outer surface of the fixed plate, and the swing arm 1 is located on one side of the outer surface of the swing arm 2. The swing arm 1 and the swing arm 2 are movably connected. A swing arm fixing shaft passes through the lower end of the outer surface of the swing arm 2. A gear mounting plate is fixedly connected to one end of the outer surface of the swing arm fixing shaft, and the gear mounting plate is located on the other end of the outer surface of the machine head body.
[0010] Preferably, a gear and a gear baffle are fixedly connected to one outer surface of the gear mounting plate, and the gear is located on one outer surface of the gear baffle. An adjusting gear shaft passes through one outer surface of the gear baffle, and the adjusting gear shaft is threadedly connected to the gear baffle and the gear mounting plate.
[0011] Preferably, a mouth shape adjustment seat is fixedly connected to the outer surface of one end of the machine head body, a mouth shape is fitted on the inner wall of the mouth shape adjustment seat, a mouth shape pressure cover is fitted on the inner wall of the mouth shape, a mouth shape heating coil is fixedly connected to the outer wall of the mouth shape adjustment seat, and a pressure cover is detachably connected to the outer surface of one end of the machine head body.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention, through the design of the die cap, allows for easy installation or removal of the die from one end of the die head body, enabling the replacement of different die models. This ensures the die and die head core remain concentric, resulting in more precise geometric shapes and dimensions of the extruded products. Furthermore, the die design maintains a consistent cone angle for the flow channel core, leading to a glossier extruded product surface. The included die heating coil facilitates rapid and convenient heating of the die, resulting in more uniform wall thickness of the extruded product. Finally, the adjustable gear shaft, through meshing with gears, establishes a power transmission chain, transferring the torque of the engine or motor to other mechanical components, thereby achieving power transmission and motion conversion between these components. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the internal structure of a T-shaped mold head according to the present invention;
[0015] Figure 2 This is a schematic diagram of the overall structure of a T-shaped mold head according to the present invention;
[0016] Figure 3 This is a test cross-sectional diagram of a T-shaped mold head according to the present invention;
[0017] Figure 4 This is a three-dimensional structural diagram of a T-shaped mold head according to the present invention.
[0018] In the diagram: 1. Head body; 2. Flow channel core; 3. Head flange; 4. Head core; 5. Vacuum sleeve; 6. Clamping screw cap; 7. Die; 8. Die shape adjustment seat; 9. Die shape; 10. Die shape cover; 11. Die shape heating coil; 12. Cover; 13. Upper mounting seat for hydraulic cylinder; 14. Hydraulic cylinder; 15. Lower mounting seat for hydraulic cylinder; 16. Fixing plate; 17. Support seat; 18. Swing arm one; 19. Swing arm two; 20. Swing arm fixing shaft; 21. Gear mounting plate; 22. Gear; 23. Gear baffle; 24. Adjusting gear shaft. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Please see Figures 1-4 This utility model provides a technical solution: a T-shaped mold head, including a head body 1, a flow channel core 2 movably connected to the inner wall of the head body 1, a head flange 3 fixedly connected to the upper outer surface of the head body 1, a head core 4 fixedly connected to the inner wall of the head flange 3, a vacuum sleeve 5 detachably connected to the outer surface of one end of the head core 4, a clamping screw cap 6 detachably connected to the outer surface of one end of the vacuum sleeve 5, and a mold nozzle 7 detachably connected to the outer surface of the other end of the head core 4. Its overall structure is simple and easy to install and operate.
[0021] In this embodiment, as Figures 1-2As shown, an upper cylinder mounting base 13 is fixedly connected to the outer wall of the machine head body 1. An oil cylinder 14 is fixedly connected to the upper outer surface of the upper cylinder mounting base 13. The upper cylinder mounting base 13 allows for easy lowering of the oil cylinder 14 onto the machine head body 1. A lower cylinder mounting base 15 is fixedly connected to the lower outer wall of the machine head body 1. A fixing plate 16 and a support base 17 are fixedly connected to the lower outer surface of the lower cylinder mounting base 15. The fixing plate 16 is located on the upper outer surface of the support base 17. The fixing plate 16 and the support base 17 allow for easy support of the machine head body 1. When supported in a designated position, a swing arm 18 and a swing arm 29 are movably connected to one end of the outer surface of the fixed plate 16. The swing arm 18 is located on one side of the outer surface of the swing arm 29, and the swing arm 18 and the swing arm 29 are movably connected. A swing arm fixing shaft 20 passes through the lower end of the outer surface of the swing arm 29. A gear mounting plate 21 is fixedly connected to one end of the outer surface of the swing arm fixing shaft 20, and the gear mounting plate 21 is located on the other end of the outer surface of the machine head body 1. Through the gear mounting plate 21, the gear 22 can be easily installed on one side of the outer surface of the machine head body 1.
[0022] In this embodiment, as Figures 1-3 As shown, a gear 22 and a gear baffle 23 are fixedly connected to one side of the outer surface of the gear mounting plate 21, and the gear 22 is located on one side of the outer surface of the gear baffle 23. An adjusting gear shaft 24 is passed through one side of the outer surface of the gear baffle 23, and the adjusting gear shaft 24 is threadedly connected to the gear baffle 23 and the gear mounting plate 21. Through the setting of the adjusting gear shaft 24, the adjusting gear shaft 24 establishes a power transmission chain by meshing with the gear 22, and transmits the torque of the engine or motor to other mechanical parts, thereby realizing the power transmission and motion conversion between mechanical parts. A mouth-shaped adjusting seat 8 is fixedly connected to one end of the outer surface of the machine head body 1. A mouth-shaped 9 is sleeved on the inner wall of the mouth-shaped adjusting seat 8. A mouth-shaped pressure cover 10 is sleeved on the inner wall of the mouth-shaped 9. A mouth-shaped heating coil 11 is fixedly connected to the outer wall of the mouth-shaped adjusting seat 8. A pressure cover 12 is detachably connected to one end of the outer surface of the machine head body 1. Through the setting of the mouth-shaped pressure cover 10, it is convenient to install the mouth-shaped 9 on one end of the outer surface of the machine head body 1 or remove it from it to replace different models of mouth-shaped 9.
[0023] Working principle:
[0024] A T-shaped die head, in use, allows for easy installation or removal of the die 9 from one end of the die head body 1 via the die 9 nozzle cap 10, enabling the replacement of different die 9 models. This ensures that the die nozzle 7 and the die head core 4 are concentric, resulting in more precise geometric shapes and dimensions of the extruded products. Furthermore, the die nozzle 7 maintains a consistent cone angle for the flow channel core 2, resulting in a glossier extruded product surface. The die 9 heating coil 11 facilitates rapid and convenient heating, leading to more uniform wall thickness in the extruded product. The adjusting gear shaft 24, through meshing with gear 22, establishes a power transmission chain, transmitting the torque of an engine or motor to other mechanical components, thereby achieving power transmission and motion conversion between mechanical parts.
[0025] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
Claims
1. A T-die head comprising a head body (1), characterised in that: The inner wall of the head body (1) is movably connected to the flow channel core (2), the upper outer surface of the head body (1) is fixedly connected to the head flange (3), the inner wall of the head flange (3) is fixedly connected to the head core (4), one end of the outer surface of the head core (4) is detachably connected to the vacuum sleeve (5), one end of the outer surface of the vacuum sleeve (5) is detachably connected to the clamping screw cap (6), and the other end of the outer surface of the head core (4) is detachably connected to the die nozzle (7).
2. A T-die head according to claim 1, characterized in that: The outer wall of the machine head body (1) is fixedly connected to the upper mounting seat (13) of the oil cylinder, and the upper outer surface of the upper mounting seat (13) is fixedly connected to the oil cylinder (14).
3. A T-die head according to claim 1, characterized in that: The lower outer wall of the machine head body (1) is fixedly connected to a lower cylinder mounting base (15). The lower outer surface of the lower cylinder mounting base (15) is fixedly connected to a fixing plate (16) and a support base (17), and the fixing plate (16) is located on the upper outer surface of the support base (17).
4. A T-die head according to claim 3, characterised in that: One end of the fixed plate (16) is movably connected to a swing arm one (18) and a swing arm two (19), and the swing arm one (18) is located on one side of the outer surface of the swing arm two (19), and the swing arm one (18) and the swing arm two (19) are movably connected. The lower end of the outer surface of the swing arm two (19) is provided with a swing arm fixing shaft (20), and one end of the outer surface of the swing arm fixing shaft (20) is fixedly connected to a gear mounting plate (21), and the gear mounting plate (21) is located on the other end of the outer surface of the machine head body (1).
5. A T-die head according to claim 4, characterised in that: A gear (22) and a gear baffle (23) are fixedly connected to one side of the outer surface of the gear mounting plate (21), and the gear (22) is located on one side of the outer surface of the gear baffle (23). An adjusting gear shaft (24) is passed through one side of the outer surface of the gear baffle (23), and the adjusting gear shaft (24) is threadedly connected to the gear baffle (23) and the gear mounting plate (21).
6. A T-die head according to claim 1, characterized in that: A mouth shape adjustment seat (8) is fixedly connected to the outer surface of one end of the head body (1). A mouth shape (9) is fitted on the inner wall of the mouth shape adjustment seat (8). A mouth shape pressure cover (10) is fitted on the inner wall of the mouth shape (9). A mouth shape heating coil (11) is fixedly connected to the outer wall of the mouth shape adjustment seat (8). A pressure cover (12) is detachably connected to the outer surface of one end of the head body (1).