Adjusting die head

Abstract

The utility model relates to the technical field of extrusion forming dies, in particular to an adjusting die head which comprises an upper die base, a lower die base and an adjusting assembly, the upper die base is connected to the lower die base, a communicating cavity is formed in the end, close to the upper die base, of the lower die base, a main feeding port is formed in the bottom of the communicating cavity, and a side feeding port is formed in the wall of the communicating cavity; a sliding groove is formed in the inner wall of one side, perpendicular to the axis direction of the side feeding opening, of the side feeding opening, the adjusting assembly comprises a sliding block, the sliding block is embedded in the sliding groove in a sliding mode, and the side wall of the sliding block is attached to the groove wall of the sliding groove. By changing the length of the sliding block extending out of the sliding groove in a sliding mode and changing the width of the side feeding port, the feeding proportion of materials entering the communicating cavity through the side feeding port and entering the communicating cavity through the main feeding port in unit time is changed, the production requirements of products with different color ratios and different material ratios are met, the application range of the die head is widened, and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of extrusion molding dies, and in particular to an adjustable die head. Background Technology

[0002] Plastic material enters the extruder from the hopper and is conveyed forward by the rotation of the screw. During the forward movement, the material is heated by the barrel and subjected to shearing and compression by the screw, which keeps the material in a molten state. The molten material is then extruded into a die with a certain flow channel shape, and after being shaped and extruded by the die, it is transported to a water tank for further cooling and shaping. Finally, it is cut or wound up.

[0003] In existing production processes, two-color or multi-material products typically involve processing raw materials of different colors or types using a main extruder and a secondary extruder, then feeding them to a die head for mixing and processing. However, the color of the product varies depending on the proportion of different colored raw materials fed in, and the mixing ratio of different material types needs to be adjusted to create products with different functional requirements. However, existing dies lack built-in feed adjustment capabilities, which is a limitation. When producing products with stripes of different colors and sizes, it is necessary to change dies with different feed ratios, resulting in higher production costs. Furthermore, the ability to adjust the main and secondary material ratios by adjusting the feeding and extrusion speeds of the main and secondary screws is limited by the size and specifications of the main and secondary screws. Utility Model Content

[0004] In order to achieve adjustable feeding ratio of main and auxiliary screws of the die head, and adjustable width and size of color stripes to meet the needs of multiple products and improve the applicability of the die head, this application provides an adjustable die head.

[0005] The technical solution for providing an adjustable mold head in this application is as follows:

[0006] An adjustable die head includes an upper die base, a lower die base, and an adjusting assembly. The upper die base is connected to the lower die base. The lower die base has a communicating cavity at one end near the upper die base. The bottom of the communicating cavity has a main feed port, and the wall of the communicating cavity has a side feed port. The side feed port has a groove on one inner wall perpendicular to the axis of the side feed port. The adjusting assembly includes a slider, which is slidably embedded in the groove, and the side wall of the slider is in contact with the groove wall.

[0007] By adopting the above technical solution, by changing the length of the slider extending from the groove and changing the width of the side feed port, the feeding ratio of materials entering the connecting cavity through the side feed port and the main feed port per unit time can be changed, thereby meeting the needs of product production with different color ratios and different material ratios, improving the applicability of the die head, and reducing production costs.

[0008] Preferably, the lower mold base has scale lines on its outer wall.

[0009] By adopting the above technical solution, the scale lines provide a standardized reference for operators to adjust, making it easier for operators to quickly and accurately slide the slider to the position of the required feed ratio, thereby improving the accuracy and convenience of adjusting the die head feed ratio.

[0010] Preferably, there are two slides, which are symmetrically distributed along the sliding direction of the slider, and the number of sliders is the same as the number of slides and corresponds one-to-one.

[0011] By adopting the above technical solution, the two slides are symmetrically distributed along the sliding direction of the slider, and the two sliders slide and are embedded in the slides. During production, the pressure in the feed port is shared by the two sliders, reducing the possibility of damage to the die head.

[0012] Preferably, the adjustment assembly further includes a gear, a rack, and a rotating column. The lower mold base is provided with an adjustment groove, which is connected to a sliding groove. The number of racks is the same as the number of sliders and corresponds one-to-one. The racks are slidably embedded in the adjustment groove, and the sliding direction of the racks is parallel to the sliding direction of the sliders. One end of the rack is connected to the slider. The gear is rotatably embedded in the adjustment groove, and the rotation axis of the gear is perpendicular to the sliding direction of the sliders. The gear meshes with two racks. The rotating column is coaxially connected to the gear. A connecting hole is provided in the wall of the adjustment groove, and one end of the rotating column is rotatably embedded in the connecting hole.

[0013] By adopting the above technical solution, rotating the rotating column drives the gear to rotate, the gear meshes with the rack, drives the rack to slide, and drives the slider to slide, thereby realizing the synchronous adjustment of the two sliders and improving the adjustment efficiency of the mold head.

[0014] Preferably, it also includes a rotating disk, which is slidably connected coaxially to the end of the rotating column away from the adjustment groove. The rotating disk is circumferentially fixed to the rotating column. A groove is provided on the wall of the connecting hole at the end away from the adjustment groove. The groove is used for the rotating disk to be inserted. A slot is provided on the wall of the slot at the end away from the connecting hole. The slot is used for the user's finger to be inserted. There are a plurality of slots, which are spaced apart along the circumference of the groove.

[0015] By adopting the above technical solution, when adjustment is needed, insert your finger into the groove, pinch the outer wall of the rotating disk, remove the rotating disk from the groove, rotate the rotating disk, drive the rotating column to rotate, and realize the adjustment of the slider. After adjustment, insert the rotating disk into the groove, reducing the possibility of touching the rotating disk during the installation process, causing the rotating disk to rotate and the slider to move.

[0016] Preferably, the assembly further includes a limiting component, comprising a rotating plate, a second reset member, an unlocking block, a third reset member, and a push block. A limiting groove is provided at the wall of the communicating hole. The rotating plate is rotatably embedded within the limiting groove, and the rotation axis of the rotating plate is parallel to the rotation axis of the rotating column. The second reset member connects the rotating plate and the lower mold base, and the second reset member causes the rotating plate to tend to press against the outer wall of the rotating column. The unlocking block is slidably embedded within the limiting groove, and one end of the unlocking block has a second chamfer for abutting against the rotating plate. The unlocking block is used to drive the two rotating plates away from each other. The third reset member is connected between the unlocking block and the lower mold base. The third reset member makes the second chamfer tend to abut against the rotating plate. The limiting groove has a connecting groove on the side wall away from the upper mold base. The connecting groove is connected to the groove. The push block is slidably embedded in the connecting groove. The end of the push block near the unlocking block has a fourth chamfer. The fourth chamfer is located on the side of the push block away from the connecting hole. The fourth chamfer is used to abut against the unlocking block. The other end of the push block is used for the rotating disk to abut against.

[0017] By adopting the above technical solution, after the rotating disk is removed from the groove, the unlocking block slides against the rotating plate under the action of the elastic force of the third reset member, and the second abutment abuts against the rotating plate, so that the two rotating plates overcome the elastic force of the second reset member and move away from each other. The unlocking block abuts against the fourth chamfer, pushing the end of the push block away from the unlocking block to extend into the groove. The rotating disk is embedded in the groove, and the rotating disk abuts against the push block. The fourth chamfer abuts against the unlocking block, pushing the unlocking block to slide away from the rotating plate against the elastic force of the third reset member. The rotating plate presses against the outer wall of the rotating column under the action of the elastic force of the second reset member, thereby limiting the rotating column and reducing the possibility of the slider moving due to the extrusion of the raw material in the side feed port during the production process, and improving the reliability of the preset scale ratio of the die head.

[0018] Preferably, the outer wall of the lower mold base is provided with an annular groove, the side feed port is connected to the annular groove, and there are several side feed ports, which are distributed at intervals along the circumference of the annular groove.

[0019] By adopting the above technical solution, an annular groove is provided on the outer periphery of the lower die holder. When the die head is installed in the extruder, the annular groove is connected to the extrusion port of the auxiliary extruder. The raw material enters the annular groove and then enters the connecting cavity through multiple side feed ports, thereby improving the feeding efficiency of the die head, increasing the adjustment range of the die head feeding ratio, and expanding the applicability of the die head.

[0020] Preferably, it also includes pulleys and belt bodies. The number of adjustment components and pulleys is the same as the number of side feed ports and corresponds one-to-one. The pulleys are coaxially connected to the rotating column, and the belt body is sleeved on the outer circumference of the pulleys.

[0021] By adopting the above technical solution, the pulley is coaxially connected to the rotating column, and the belt is sleeved on the outer circumference of the pulley, realizing the synchronous adjustment of the width of multiple side feed ports, ensuring that the feed amount per unit time of each side feed port is the same, and improving the adjustment efficiency and accuracy of the die head.

[0022] Preferably, it also includes connecting posts. The upper mold base is provided with connecting holes, and there are several connecting holes. The several connecting holes are distributed circumferentially around the axis of the upper mold base. The lower mold base is provided with fixing holes. The number of fixing holes and connecting posts is the same as the number of connecting holes and they correspond one-to-one. After the connecting posts pass through the connecting holes, they are threadedly connected to the fixing holes to achieve relative fixation of the upper mold base and the lower mold base.

[0023] By adopting the above technical solution, the connecting column passes through the connecting hole and is threadedly connected to the fixing hole, thereby achieving relative fixation of the upper mold base and the lower mold base. This makes it easy to loosen the connecting column, separate the upper mold base and the lower mold base, and clean or repair the upper mold base and the lower mold base.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By changing the length of the sliding extension groove of the slider and the width of the side feed port, the feeding ratio of materials entering the connecting cavity through the side feed port and the main feed port per unit time can be changed to meet the needs of product production with different color ratios and different material ratios, improve the applicability of the die head, and reduce production costs.

[0026] 2. The scale lines provide a standardized reference for operators to adjust the material, making it easy for them to quickly and accurately slide the slider to the desired feed ratio position, thus improving the accuracy and convenience of adjusting the die head feed ratio;

[0027] 3. After the rotating disk is removed from the groove, the unlocking block slides against the rotating plate under the elastic force of the third reset component, and the second abutment abuts against the rotating plate, so that the two rotating plates overcome the elastic force of the second reset component and move away from each other. The unlocking block abuts against the fourth chamfer, pushing the end of the push block away from the unlocking block into the groove. The rotating disk is embedded in the groove, and the rotating disk abuts against the push block. The fourth chamfer abuts against the unlocking block, pushing the unlocking block to slide away from the rotating plate against the elastic force of the third reset component. Under the action of the elastic force of the second reset component, the rotating plate presses against the outer wall of the rotating column, thereby limiting the rotating column and reducing the possibility of the slider moving due to the pressure of the raw material in the side feed port during the production process, and improving the reliability of the preset scale ratio of the die head. Attached Figure Description

[0028] Figure 1 This is a cross-sectional view of the adjusting mold head.

[0029] Figure 2 This is a schematic diagram of the adjustable mold head.

[0030] Figure 3 This is a cross-sectional view of another embodiment.

[0031] Figure 4 This is a cross-sectional view of the adjusting mold head.

[0032] Figure 5 This is a partial sectional view of the adjusting mold head, mainly showing the adjusting components and adjusting groove.

[0033] Figure 6 It is a cross-sectional view of the adjusting die head, mainly showing the pulley, belt body and clamping wheel.

[0034] Figure 7 yes Figure 4 Enlarged view of point A in the middle.

[0035] Figure 8 This is a partial sectional view of the adjusting mold head, mainly showing the groove.

[0036] Figure 9 This is a partial sectional view of the adjusting mold head, mainly showing the limiting components and limiting grooves.

[0037] Figure 10 yes Figure 9 Enlarged view of point B in the middle.

[0038] Figure 11 yes Figure 7 A magnified view of point C in the middle.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Upper mold base; 11. Connecting hole; 12. Step groove; 13. Forming channel; 14. Connecting rod; 15. Insert;

[0041] 2. Lower mold base; 21. Communicating cavity; 22. Main feed port; 23. Side feed port; 24. Slide groove; 25. Scale line; 26. Adjustment groove; 27. Communicating hole; 28. Groove; 29. ​​Embedded groove; 210. Fixing hole; 211. Annular groove; 212. First chamfer; 213. Annular cavity; 214. First connecting channel; 215. Second connecting channel; 216. Connecting groove; 217. Limiting groove; 218. Receiving groove; 219. Unlocking groove; 220. Communicating groove;

[0042] 3. Adjustment mechanism; 31. Adjustment component; 311. Slider; 3111. Connecting plate; 312. Gear; 313. Rack; 314. Rotating column; 3141. Transmission groove; 3142. Guide groove; 32. Rotating disk; 321. Anti-slip texture; 322. Protruding column; 323. Transmission block; 324. Guide ring; 33. Limiting component; 331. Rotating plate; 3311. Rotating shaft; 3312. Abutting block; 33121. Third chamfer; 332. Second reset component; 333. Pressing component; 334. Unlocking block; 3341. Second chamfer; 3342. Protrusion; 33421. Fifth chamfer; 335. Third reset component; 336. Push block; 3361. Fourth chamfer; 34. Pulley; 35. Belt body; 36. Pressing wheel; 37. Sliding magnetic ring; 38. Fixed magnetic block;

[0043] 4. Connecting post; 41. Threaded section; 42. Connecting section; 43. Abutment section. Detailed Implementation

[0044] The present application will be further described in detail below with reference to the accompanying drawings.

[0045] Reference Figure 1 This application discloses an adjustable mold head comprising a lower mold base 2 and an upper mold base 1. The upper mold base 1 is coaxially fixedly connected to one end of the lower mold base 2, and the outer wall of the upper mold base 1 is flush with the outer wall of the lower mold base 2. A stepped groove 12 is provided on the outer wall of the end of the upper mold base 1 away from the lower mold base 2, and the stepped groove 12 is annular. A plurality of connecting holes 11 are provided at the bottom of the stepped groove 12, and the connecting holes 11 penetrate the upper mold base 1 along the axis of the connecting holes 11. The plurality of connecting holes 11 are circumferentially spaced around the axis of the upper mold base 1. In this embodiment, there are two connecting holes 11, which are symmetrically distributed along a line perpendicular to the axis of the upper mold base 1, and the axes of the two connecting holes 11 are parallel to and coplanar with the axis of the upper mold base 1.

[0046] An adjusting mold head also includes a connecting post 4. The lower mold base 2 is provided with a fixing hole 210. The number of fixing holes 210 and connecting posts 4 is the same as the number of connecting holes 11 and they correspond one-to-one. The fixing holes 210 penetrate the lower mold base 2 along its axis. The connecting post 4 includes a threaded section 41, a connecting section 42, and an abutting section 43. One end of the threaded section 41 is coaxially fixedly connected to one end of the connecting section 42, and one end of the abutting section 43 is coaxially fixedly connected to the other end of the connecting section 42. The outer diameter of the abutting section 43 is larger than the outer diameter of the connecting section 42. The threaded section 41 is threaded into the fixing hole 210, and the connecting section 42 is coaxially rotatably embedded in the connecting hole 11. The outer wall of the connecting section 42 fits against the wall of the connecting hole 11, and the end of the abutting section 43 near the connecting section 42 abuts against the bottom of the stepped groove 12.

[0047] Reference Figure 1 and Figure 2The lower mold base 2 has a connecting cavity 21 at one end near the upper mold base 1, and the axis of the connecting cavity 21 coincides with the axis of the upper mold base 1. The bottom of the connecting cavity 21 has a main feed port 22, the axis of the main feed port 22 coincides with the axis of the lower mold base 2, and the end of the main feed port 22 away from the connecting cavity 21 passes through the lower mold base 2. The inner wall of the end of the main feed port 22 away from the connecting cavity 21 has a first chamfer 212.

[0048] The lower mold base 2 has an annular cavity 213 at one end near the upper mold base 1. The axis of the annular cavity 213 coincides with the axis of the connecting cavity 21, and the annular cavity 213 surrounds the connecting cavity 21. The bottom of the annular cavity 213 is located on the side of the connecting cavity 21 away from the upper mold base 1. The connecting cavity 21 has a first connecting channel 214 and a second connecting channel 215 on its wall. The first connecting channel 214 and the second connecting channel 215 communicate with the annular cavity 213. The side of the first connecting channel 214 and the second connecting channel 215 near the upper mold base 1 passes through the lower mold base 2. The inner wall of the side of the first connecting channel 214 and the second connecting channel 215 away from the upper mold base 1 is flush with the bottom of the connecting cavity 21. In this embodiment, there are two first connecting channels 214 and two connecting channels 215. The two first connecting channels 214 and the two connecting channels 215 are symmetrically distributed along a direction perpendicular to the axis of the lower mold base 2. A second connecting channel 215 is provided between two adjacent first connecting channels 214, and a first connecting channel 214 is provided between two adjacent second connecting channels 215.

[0049] The upper mold base 1 is provided with a forming channel 13, which runs through the upper mold base 1 along its axis. The axis of the forming channel 13 coincides with the axis of the upper mold base 1, and the forming channel 13 is used to connect with the communicating cavity 21. In this embodiment, the cross-section of the forming channel 13 is circular.

[0050] Reference Figure 3 In another embodiment, the forming channel 13 has a circular cross-section, and six connecting rods 14 are fixedly connected to the inner wall of the forming channel 13. The six connecting rods 14 are evenly distributed around the axis of the forming channel 13, and the surface of the connecting rod 14 near the lower mold base 2 is flush with the end of the upper mold base 1 near the lower mold base 2.

[0051] Reference Figure 2 and Figure 4The lower mold base 2 has an annular groove 211 on its outer wall near the upper mold base 1. The bottom of the annular groove 211 is located on the side of the bottom of the annular cavity 213 away from the upper mold base 1. Several side feed ports 23 are provided on the outer wall of the annular cavity 213. The axis of each side feed port 23 is perpendicular to the axis of the lower mold base 2. The side feed ports 23 are connected to the annular groove 211. The side feed ports 23 are circumferentially spaced around the axis of the lower mold base 2. The side of the side feed port 23 near the upper mold base 1 penetrates the lower mold base 2. The inner wall of the side of the side feed port 23 away from the upper mold base 1 is flush with the bottom of the annular cavity 213. In this embodiment, there are two side feed ports 23, which correspond to two first connecting channels 214. The inner walls on both sides of the side feed ports 23 are parallel to the inner walls on both sides of the first connecting channels 214. An insert 15 is fixedly connected to one end of the upper mold base 1 near the lower mold base 2. The number of inserts 15 is the same as the number of side feed ports 23 and they correspond one-to-one. The inserts 15 are embedded in the side feed ports 23, and the side walls of the inserts 15 are in contact with the inner walls of the side feed ports 23 on both sides perpendicular to the axis of the side feed ports 23. The bottom of the annular groove 211 is provided with scale lines 25, and the number of scale lines 25 is the same as the number of side feed ports 23 and they correspond one-to-one.

[0052] Reference Figure 2 and Figure 5 An adjustable die head also includes an adjustment mechanism 3, which includes adjustment components 31. The number of adjustment components 31 is the same as the number of side feed ports 23 and they correspond one-to-one.

[0053] Reference Figure 5 and Figure 6The side feed inlet 23 has two inner walls with grooves 24 on both sides perpendicular to the axis of the side feed inlet 23. The groove wall of the groove 24 near the upper mold base 1 is flush with the end of the insert 15 away from the upper mold base 1, and the groove wall of the groove 24 away from the upper mold base 1 is flush with the inner wall of the side feed inlet 23 away from the upper mold base 1. The adjustment component 31 includes a slider 311, a rack 313 and a gear 312. The number of sliders 311 and racks 313 is the same as the number of grooves 24 and they correspond one-to-one. One end of the slider 311 is slidably embedded in the groove 24. The sliding direction of the slider 311 is perpendicular to the axis of the side feed inlet 23. The side wall of the slider 311 is in contact with the groove wall of the groove 24. The other end of the slider 311 extends into the side feed inlet 23. The lower mold base 2 is provided with an adjusting groove 26, which is annular and located inside the fixing hole 210. The adjusting groove 26 is located on the side of the side feed port 23 away from the upper mold base 1. The sliding groove 24 has a connecting groove 216 on the side wall away from the upper mold base 1, and the connecting groove 216 is connected to the adjusting groove 26. The gear 312 is rotatably embedded in the adjusting groove 26, and the rotation axis of the gear 312 is parallel to the axis of the lower mold base 2. The rack 313 is slidably embedded in the adjusting groove 26, and the sliding direction of the rack 313 is parallel to the sliding direction of the slider 311. The rack 313 meshes with the gear 312, and the two racks 313 are located on both sides of the gear 312 along the axis of the side feed port 23. A connecting plate 3111 is fixedly connected to the end of the slider 311 away from the side feed port 23. The length direction of the connecting plate 3111 is parallel to the axis direction of the lower mold base 2. The end of the connecting plate 3111 away from the slider 311 passes through the connecting groove 216 and extends into the adjusting groove 26. One end of the gear 312 is fixedly connected to the end of the connecting plate 3111 away from the slider 311.

[0054] Reference Figure 5 and Figure 7 The adjusting groove 26 has a connecting hole 27 on the side of the groove wall away from the upper mold base 1. The connecting hole 27 is connected to the outside. The axis of the connecting hole 27 is parallel to the axis of the lower mold base 2, and the axis of the connecting hole 27 is coplanar with the axis of the lower mold base 2. The adjusting assembly 31 also includes a rotating column 314. One end of the rotating column 314 is coaxially fixedly connected to the gear 312, and the other end of the rotating column 314 is rotatably embedded in the connecting hole 27. The outer wall of the rotating column 314 is in contact with the wall of the connecting hole 27.

[0055] Reference Figure 6 and Figure 7The adjusting mechanism 3 also includes pulleys 34, belt body 35, and clamping wheels 36. The number of pulleys 34 is the same as the number of rotating columns 314 and corresponds one-to-one. The pulleys 34 are coaxially fixed to the outer periphery of the rotating columns 314. The pulleys 34 are located on the side of the gear 312 away from the upper mold base 1. The clamping wheels 36 are rotatably embedded in the adjusting grooves 26. The rotation axis of the clamping wheels 36 is parallel to the rotation axis of the rotating columns 314. There are several clamping wheels 36, and the adjustment grooves 26 of the clamping wheels 36 are distributed at intervals along their axes. In this embodiment, there are four clamping wheels 36, which are divided into two groups. The two groups of adjusting grooves 26 are symmetrically distributed along the direction perpendicular to the axis of the lower mold base 2. A set of clamping wheels 36 is provided between two adjacent pulleys 34. The belt body 35 is sleeved on the outer periphery of the four clamping wheels 36 and the two pulleys 34.

[0056] Reference Figure 7 and Figure 8 The adjustment mechanism 3 also includes a rotating disk 32, a sliding magnetic ring 37, and a fixed magnetic block 38. A groove 28 is provided on the wall of the connecting hole 27 at the end away from the adjustment groove 26. The rotating disk 32 is slidably embedded in the groove 28, and the sliding direction of the rotating disk 32 is parallel to the rotation axis of the rotating column 314. Several anti-slip patterns 321 are fixedly connected to the outer circumference of the rotating disk 32, and these patterns are evenly distributed around the axis of the rotating disk 32. Several slots 29 are provided on the wall of the groove 28 at the end away from the connecting hole 27. These slots 29 are for inserting the user's fingers, and they are spaced apart circumferentially around the axis of the groove 28. In this embodiment, there are six slots 29, which are evenly distributed circumferentially around the axis of the groove 28. The sliding magnetic ring 37 is fixedly connected to the side of the rotating disk 32 near the bottom of the groove 28, and the fixed magnetic block 38 is fixedly connected to the bottom of the groove 28. The fixed magnetic block 38 and the sliding magnetic ring 37 attract each other.

[0057] Reference Figure 7 and Figure 9 A protruding post 322 is fixedly connected to the side of the rotating disk 32 near the rotating column 314. The protruding post 322 is rotatably embedded in the communicating hole 27, and its outer wall is in contact with the wall of the rotating hole. A transmission block 323 is fixedly connected to the end of the protruding post 322 near the rotating column 314. A transmission groove 3141 is provided at the end of the rotating column 314 near the groove 28. The transmission block 323 is slidably embedded in the transmission groove 3141, and the sliding direction of the transmission block 323 is parallel to the sliding direction of the rotating disk 32. The side wall of the transmission block 323 abuts against the groove wall of the transmission groove 3141. In this embodiment, the cross-section of the transmission block 323 is hexagonal. A guide ring 324 is fixedly connected to the outer periphery of the end of the transmission block 323 away from the protruding post 322. A guide groove 3142 is provided at the groove wall of the transmission groove 3141 near the bottom of the groove, and the guide ring 324 is slidably embedded in the guide groove 3142.

[0058] Reference Figure 10 and Figure 11The adjusting mechanism 3 also includes a limiting component 33, which includes a rotating plate 331, a second reset component 332, and a clamping component 333. A limiting groove 217 is provided on the wall of the connecting hole 27. The rotating plate 331 is rotatably embedded in the limiting groove 217. The rotation axis of the rotating plate 331 is parallel to the axis of the connecting hole 27, and the rotating plate 331 is arc-shaped. There are two rotating plates 331, symmetrically distributed along a direction perpendicular to the axis of the connecting hole 27. A rotating shaft 3311 is fixedly connected to one end of the rotating plate 331. The axis of the rotating shaft 3311 coincides with the rotation axis of the rotating plate 331. Receiving grooves 218 are provided on both sides of the limiting groove 217 along the rotation axis of the rotating plate 331, and the rotating shaft 3311 is rotatably embedded in the receiving grooves 218. The number of clamping components 333 is the same as the number of rotating plates 331 and they correspond one-to-one. The clamping components 333 are fixedly connected to the inner side of the rotating plate 331. The second reset member 332 is connected between the rotating plate 331 and the lower mold base 2. The second reset member 332 causes the abutment member 333 to tend to abut against the outer wall of the rotating column 314. In this embodiment, the second reset member 332 is a torsion spring. The second reset member 332 is sleeved on the outer circumference of the rotating shaft 3311. One end of the second reset member 332 is connected to the rotating plate 331, and the other end of the second reset member 332 is connected to the bottom of the receiving groove 218. One rotating plate 331 corresponds to two second reset members 332, and the two second reset members 332 are symmetrically distributed along the rotation axis of the rotating plate 331.

[0059] The rotating plate 331 is fixedly connected to an abutment block 3312 at one end away from the rotating shaft 3311. The limiting groove 217 is provided with an unlocking groove 219 on the side away from the receiving groove 218. The unlocking groove 219 is used for the two abutment blocks 3312 to be embedded. The limiting component 33 also includes an unlocking block 334, a third reset member 335 and a push block 336. The unlocking block 334 is slidably embedded in the unlocking groove 219. The sliding direction of the unlocking block 334 is perpendicular to the axial direction of the connecting hole 27. The unlocking block 334 is located between the two abutment blocks 3312. The end of the unlocking block 334 near the connecting hole 27 is provided with a second chamfer 3341. The number of second chamfers 3341 is the same as the number of abutment blocks 3312 and they correspond one-to-one. The abutment block 3312 has a third chamfer 33121 at one end away from the rotating shaft 3311. The third chamfer 33121 is located on the side of the abutment block 3312 near another abutment block 3312, and is used to abut against the second chamfer 3341. The third reset member 335 is connected between the unlocking block 334 and the lower mold base 2. The third reset member 335 causes the unlocking block 334 to tend to move away from the connecting hole 27. In this embodiment, the third reset member 335 is a spring. One end of the third reset member 335 is connected to the end of the unlocking block 334 away from the connecting hole 27, and the other end of the third reset member 335 is connected to the bottom of the unlocking groove 219. A connecting groove 220 is provided on the side wall of the unlocking groove 219 away from the upper mold base 1. The connecting groove 220 is connected to the groove 28. The push block 336 is slidably embedded in the connecting groove 220. The sliding direction of the push block 336 is parallel to the axial direction of the connecting hole 27. A fourth chamfer 3361 is provided at the end of the push block 336 near the unlocking groove 219. The fourth chamfer 3361 is located on the side of the push block 336 away from the connecting hole 27. A protrusion 3342 is fixedly connected to the side of the unlocking block 334 away from the upper mold base 1. A fifth chamfer 33421 is provided at the end of the protrusion 3342 away from the unlocking block 334. The fifth chamfer 33421 is located on the side of the protrusion 3342 near the connecting hole 27 and is used to abut against the fourth chamfer 3361. In this embodiment, when the rotating disk 32 abuts against the bottom of the groove 28, the two clamping members 333 abut against the outer wall of the rotating column 314.

[0060] The implementation principle of the adjusting mold head in this embodiment is as follows: The upper mold base 1 is rotated so that the insert 15 aligns with the side feed port 23. The threaded section 41 passes through the connecting hole 11 and is threadedly connected to the fixing hole 210. The abutting section 43 abuts against the bottom of the adjusting groove 26. A finger is inserted into the insert groove 29, and the anti-slip texture 321 on the outer wall of the rotating disk 32 is pinched, causing the rotating disk 32 to disengage from the groove 28. The third reset member 335 drives the unlocking block 334 to slide. The second chamfer 3341 abuts against the third abutting point, pushing the two rotating plates 331 away from each other due to the elasticity of the second reset member 332. The fifth chamfer 33421 abuts against the fourth chamfer 3361, causing the end of the push block 336 away from the unlocking block 334 to extend into the groove 28. Rotating the rotating disk 32 causes the rotating column 314 to rotate, which in turn causes the gear 312 to rotate. The gear 312 meshes with the rack 313, causing the rack 313 to slide and the slider 311 to slide. When the slider 311 slides to align with the scale line 25, the rotating disk 32 is released, allowing it to embed into the groove 28. The sliding magnetic ring 37 and the fixed magnetic block 38 attract each other, and the rotating disk 32 abuts against the push block 336, pushing the push block 336 into the connecting groove 220. The fourth chamfer 3361 abuts against the fifth chamfer 33421, pushing the unlocking block 334 away from the connecting hole 27. Under the action of the elastic force of the second reset member 332, the two rotating plates 331 rotate and approach the rotating column 314, and the clamping member 333 abuts against the outer wall of the rotating column 314.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable mold head, characterized in that: The assembly includes an upper mold base (1), a lower mold base (2), and an adjustment component (31); the upper mold base (1) is connected to the lower mold base (2); the lower mold base (2) has a connecting cavity (21) at one end near the upper mold base (1); the bottom of the connecting cavity (21) has a main feed port (22); the wall of the connecting cavity (21) has a side feed port (23); the inner wall of the side feed port (23) along the direction perpendicular to the axis of the side feed port (23) has a groove (24); the adjustment component (31) includes a slider (311); the slider (311) is slidably embedded in the groove (24); the side wall of the slider (311) is in contact with the groove wall of the groove (24).

2. The adjusting mold head according to claim 1, characterized in that: The lower mold base (2) has a scale line (25) on its outer wall.

3. The adjusting mold head according to claim 1, characterized in that: There are two slide grooves (24); the two slide grooves (24) are symmetrically distributed along the sliding direction of the slider (311); the number of sliders (311) is the same as the number of slide grooves (24) and they correspond one-to-one.

4. The adjusting mold head according to claim 3, characterized in that: The adjustment assembly (31) further includes a gear (312), a rack (313), and a rotating column (314); the lower mold base (2) is provided with an adjustment groove (26); the adjustment groove (26) is connected to the sliding groove (24); the number of racks (313) is the same as the number of sliders (311) and they correspond one-to-one; the racks (313) are slidably embedded in the adjustment groove (26); the sliding direction of the racks (313) is parallel to the sliding direction of the sliders (311); the racks (312) are slidably embedded in the adjustment groove (26); the sliding direction of the racks (313) is parallel to the sliding direction of the sliders (311); the racks (312) are slidably embedded in the sliding groove (26); the sliding direction of the racks (313) is parallel to the sliding direction of the sliders (311); the sliding direction of the racks (312) is ... 13) One end is connected to the slider (311); the gear (312) is rotatably embedded in the adjustment groove (26); the rotation axis of the gear (312) is perpendicular to the sliding direction of the slider (311); the gear (312) meshes with two racks (313); the rotating column (314) is coaxially connected to the gear (312); the adjustment groove (26) has a connecting hole (27) on its groove wall; one end of the rotating column (314) is rotatably embedded in the connecting hole (27).

5. The adjusting mold head according to claim 4, characterized in that: It also includes a rotating disk (32); the rotating disk (32) is coaxially slidably connected to the end of the rotating column (314) away from the adjusting groove (26); the rotating disk (32) and the rotating column (314) are circumferentially fixed; a groove (28) is provided on the wall of the connecting hole (27) away from the adjusting groove (26); the groove (28) is used for the rotating disk (32) to be inserted; a slot (29) is provided on the wall of the groove (28) away from the connecting hole (27); the slot (29) is used for the user's finger to be inserted; there are several slots (29); several slots (29) are distributed at intervals along the circumference of the groove (28).

6. The adjusting mold head according to claim 5, characterized in that: It also includes a limiting component (33); the limiting component (33) includes a rotating plate (331), a second reset component (332), an unlocking block (334), a third reset component (335), and a push block (336); the connecting hole (27) has a limiting groove (217) on its wall; the rotating plate (331) is rotatably embedded in the limiting groove (217); the rotation axis of the rotating plate (331) is parallel to the rotation axis of the rotating column (314); the second reset component (332) is connected between the rotating plate (331) and the lower mold base (2); the second reset component (332) makes the rotating plate (331) tend to press against the outer wall of the rotating column (314); the unlocking block (334) is slidably embedded in the limiting groove (217); one end of the unlocking block (334) is provided with a second chamfer (3341); the second chamfer (3341) is used to abut against the rotating plate (331); the The unlocking block (334) is used to drive the two rotating plates (331) away from each other; the third reset member (335) is connected between the unlocking block (334) and the lower mold base (2); the third reset member (335) makes the second chamfer (3341) tend to abut against the rotating plate (331); the limiting groove (217) has a connecting groove (220) on the side wall away from the upper mold base (1); the connecting groove (220) and the groove (217) are connected. 8) Connected; the push block (336) is slidably embedded in the connecting groove (220); the push block (336) has a fourth chamfer (3361) at one end near the unlocking block (334); the fourth chamfer (3361) is located on the side of the push block (336) away from the connecting hole (27); the fourth chamfer (3361) is used to abut against the unlocking block (334); the other end of the push block (336) is used for the rotating disk (32) to abut against.

7. The adjusting mold head according to claim 6, characterized in that: The lower mold base (2) has an annular groove (211) on its outer wall; the side feed port (23) is connected to the annular groove (211); there are several side feed ports (23); the several side feed ports (23) are distributed circumferentially along the annular groove (211).

8. The adjusting mold head according to claim 7, characterized in that: It also includes pulleys (34) and belt body (35); the number of adjustment components (31) and pulleys (34) is the same as the number of side feed ports (23) and they correspond one to one; the pulleys (34) are coaxially connected to the rotating column (314); the belt body (35) is sleeved on the outer periphery of the pulleys (34).

9. The adjusting mold head according to claim 1, characterized in that: It also includes connecting posts (4); the upper mold base (1) is provided with connecting holes (11); there are several connecting holes (11); the several connecting holes (11) are distributed circumferentially around the axis of the upper mold base (1); the lower mold base (2) is provided with fixing holes (210); the number of fixing holes (210) and connecting posts (4) is the same as the number of connecting holes (11) and they correspond one to one; the connecting posts (4) pass through the connecting holes (11) and are threadedly connected to the fixing holes (210) to achieve relative fixation of the upper mold base (1) and the lower mold base (2).

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