A silicon tube injection molding device with quick die head replacement
By designing an installation mechanism consisting of a fixing ring, slider, positioning rod, limiting plate, and spring, combined with a die head mechanism consisting of a sleeve, clamping block, sealing ring, and connecting rod, the quick replacement of the die head is achieved, solving the problem of inconvenient die head replacement in existing equipment and improving the flexibility and efficiency of silicone tube production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU MINGBO SILICA GEL PROD CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-29
AI Technical Summary
Existing injection molding equipment makes it inconvenient to change the mold head, resulting in difficulties in producing silicone tubes of different specifications.
The installation mechanism, consisting of a fixing ring, slider, positioning rod, limit plate, and spring, combined with the mold head mechanism consisting of a sleeve, clamping block, sealing ring, connecting rod, and center rod, enables rapid mold head replacement.
It facilitates the replacement of molds of different sizes, improving the flexibility and efficiency of silicone tube production.
Smart Images

Figure CN224296402U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of silicone tube processing technology, specifically a silicone tube injection molding device with a quick mold head change capability. Background Technology
[0002] Silicone tubing serves as a carrier for the flow and encapsulation of liquids, gases, and other materials. In the industry, silicone rubber tubing can be categorized into "extruded tubing" and "shaped tubing." It is widely used in modern industry and everyday consumer goods. Silicone tubing is produced by adding raw silicone rubber to a two-roll mill or a closed kneader, gradually adding silica and other additives, repeatedly refining until homogeneous, and then extruding the product according to industry technical standards. The production of silicone tubing requires injection molding equipment.
[0003] Silicone tubing comes in many sizes, and different sizes require different mold heads. However, some existing injection molding equipment does not allow for easy mold head replacement, making it very inconvenient to use. Utility Model Content
[0004] The purpose of this invention is to provide a silicone tube injection molding device with a quick mold head change capability, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a silicone tube injection molding device with quick mold head change, comprising: a base, an extrusion tube fixedly connected to the upper end of the base, an installation mechanism provided at the right end of the extrusion tube, a mold head mechanism provided at the right end of the installation mechanism, the installation mechanism including a fixing ring fixedly connected to the right end of the extrusion tube, a sliding groove provided on the circumferential side of the fixing ring, and two sets of sliding grooves provided, and a retaining groove provided on the circumferential side of the fixing ring, and two sets of retaining grooves provided, the retaining grooves communicating with the corresponding sliding grooves.
[0006] Furthermore, the installation mechanism also includes a slider slidably connected inside the slide groove, a positioning rod fixedly connected inside the slide groove, and a limiting piece fixedly connected to the right end of the positioning rod, the limiting piece being slidably connected inside the slider.
[0007] Furthermore, the installation mechanism also includes a spring sleeved on the periphery of the positioning rod, and a sealing groove is provided at the right end of the fixing ring.
[0008] Furthermore, the mold head mechanism includes a sleeve fitted onto the right end of the fixed ring, and a locking block fixedly connected to the inner wall of the sleeve, wherein two sets of locking blocks are provided.
[0009] Furthermore, the die head mechanism also includes a sealing ring fixedly connected inside the sleeve, and a connecting rod fixedly connected inside the sleeve. Two sets of the connecting rods are provided, and the die head mechanism also includes a central rod fixedly connected between the two sets of the connecting rods.
[0010] Furthermore, a fixing plate is fixedly connected to the upper end of the base, and a telescopic cylinder is fixedly connected to the left side of the fixing plate.
[0011] Furthermore, an extrusion rod is slidably connected inside the extrusion tube, the output end of the telescopic cylinder is fixedly connected to the extrusion rod, and a feed groove is fixedly connected to the peripheral side of the extrusion tube.
[0012] Furthermore, a bracket is fixedly connected to the upper end of the base, a motor is fixedly connected to the upper end of the bracket, and a screw rod is fixedly connected to the output end of the motor.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model uses an installation mechanism consisting of a fixing ring, a slider, a positioning rod, a limiting piece, and a spring, which works in conjunction with a die head mechanism consisting of a sleeve, a locking block, a sealing ring, a connecting rod, and a center rod. This allows for easy replacement of the die head mechanism, thus facilitating the replacement of die head mechanisms with different outlet sizes. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention;
[0016] Figure 2 for Figure 1 Schematic diagram of the installation mechanism;
[0017] Figure 3 for Figure 2 Schematic diagram of the middle positioning rod;
[0018] Figure 4 for Figure 1 Rear view structural diagram of the middle mold head mechanism;
[0019] Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure of the extrusion tube.
[0020] Reference numerals: 1. Base; 2. Extrusion tube; 3. Mounting mechanism; 31. Fixing ring; 32. Slide groove; 33. Slot; 34. Slider; 35. Positioning rod; 36. Limiting piece; 37. Spring; 38. Sealing groove; 4. Die head mechanism; 41. Sleeve; 42. Locking block; 43. Sealing ring; 44. Connecting rod; 45. Center rod; 5. Fixing plate; 6. Telescopic cylinder; 7. Extrusion rod; 8. Feed groove; 9. Support; 10. Motor; 11. Screw rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please refer to the following: Figures 1-5 ,in Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the installation mechanism; Figure 3 for Figure 2 Schematic diagram of the middle positioning rod; Figure 4 for Figure 1 Rear view structural diagram of the middle mold head mechanism; Figure 5 for Figure 1 A front view cross-sectional structural diagram of an extrusion tube, a silicone tube injection molding device with quick die head change, includes: a base 1, an extrusion tube 2 fixedly connected to the upper end of the base 1, an installation mechanism 3 provided at the right end of the extrusion tube 2, and a die head mechanism 4 provided at the right end of the installation mechanism 3. The installation mechanism 3 includes a fixing ring 31 fixedly connected to the right end of the extrusion tube 2. The inner diameter of the fixing ring 31 is the same as the inner diameter of the extrusion tube 2. The fixing ring 31 has two sets of sliding grooves 32 on its circumferential side. The fixing ring 31 also has two sets of retaining grooves 33 on its circumferential side. The retaining grooves 33 are connected to the corresponding sliding grooves 32.
[0023] The mounting mechanism 3 also includes a slider 34 slidably connected inside the slide groove 32, a positioning rod 35 fixedly connected inside the slide groove 32, and a limiting piece 36 fixedly connected to the right end of the positioning rod 35. The limiting piece 36 is slidably connected inside the slider 34. A groove matching the limiting piece 36 and the positioning rod 35 is opened on the left side of the slider 34. A paddle is fixedly connected to the side of the slider 34 away from the fixing ring 31.
[0024] The mounting mechanism 3 also includes a spring 37 sleeved on the side of the positioning rod 35. A sealing groove 38 is provided at the right end of the fixing ring 31. The spring 37 can keep the slider 34 in the rightmost position.
[0025] The mold head mechanism 4 includes a sleeve 41 fitted onto the right end of the fixed ring 31, and a locking block 42 fixedly connected to the inner wall of the sleeve 41. Two sets of locking blocks 42 are provided, and the locking blocks 42 are matched with the slide groove 32 and the slot 33.
[0026] The die head mechanism 4 also includes a sealing ring 43 fixedly connected inside the sleeve 41. The sealing ring 43 matches the sealing groove 38. It also includes a connecting rod 44 fixedly connected inside the sleeve 41. There are two sets of connecting rods 44. The die head mechanism 4 also includes a central rod 45 fixedly connected between the two sets of connecting rods 44. The central rod 45 is located at the central axis of the sleeve 41.
[0027] A fixing plate 5 is fixedly connected to the upper end of the base 1, and a telescopic cylinder 6 is fixedly connected to the left side of the fixing plate 5.
[0028] An extrusion rod 7 is slidably connected inside the extrusion tube 2. The output end of the telescopic cylinder 6 is fixedly connected to the extrusion rod 7. A feed groove 8 is fixedly connected to the side of the extrusion tube 2. The side of the extrusion rod 7 matches the inner wall of the extrusion tube 2. A groove matching the output end of the telescopic cylinder 6 is opened at the left end of the extrusion tube 2 for the output end of the telescopic cylinder 6 to slide.
[0029] A bracket 9 is fixedly connected to the upper end of the base 1, a motor 10 is fixedly connected to the upper end of the bracket 9, and a screw rod 11 is fixedly connected to the output end of the motor 10. The screw rod 11 matches the bottom end of the inner wall of the feed trough 8.
[0030] It should be noted that the telescopic cylinder 6 and the motor 10 can be purchased on the market or customized in the factory, and the wiring connection method and control method are mature technologies in this field and have been fully disclosed, so they will not be repeated in this article.
[0031] In summary, the silicone tube injection molding device with quick mold head change provided by this utility model allows for the following operation: after aligning the locking block 42 with the slide groove 32, the sleeve 41 is placed on the right end of the fixing ring 31. When the sleeve 41 is tightly fitted with the fixing ring 31, the sleeve 41 is rotated counterclockwise. At this time, the locking block 42 can enter the slot 33. When the locking block 42 is fully inside the slot 33, the slider 34 is reset by the elastic force of the spring 37. At this time, the slider 34 can lock the locking block 42 inside the slot 33. Moving the lever at the upper end of the slider 34 to the left can move the slider 34 to the left. After the slider 34 moves to the leftmost position, it no longer blocks the locking block 42. At this time, the mold head mechanism 4 can be rotated and removed.
[0032] The refined raw material is placed into the feed trough 8. The screw rod 11 is rotated by the motor 10 to feed the raw material into the extrusion tube 2. At this time, the extrusion rod 7 is moved to the right inside the extrusion tube 2 by the telescopic cylinder 6 to extrude the raw material. The operation of the screw rod 11 makes it easy to feed the refined raw material into the extrusion tube 2.
Claims
1. A silicone tube injection molding device with quick mold head change, characterized in that, include: The base (1) is fixedly connected to the upper end of the base (1) and the extrusion tube (2) is provided with the right end of the extrusion tube (2) and the right end of the installation mechanism (3) is provided with the die head mechanism (4). The installation mechanism (3) includes a fixing ring (31) fixedly connected to the right end of the extrusion tube (2). The fixing ring (31) has a sliding groove (32) on its circumferential side and two sets of sliding grooves (32). The fixing ring (31) has a slot (33) on its circumferential side and two sets of slots (33). The slots (33) are connected to the corresponding sliding grooves (32).
2. The silicone tube injection molding device with quick mold head change according to claim 1, characterized in that, The installation mechanism (3) further includes a slider (34) slidably connected inside the slide groove (32), a positioning rod (35) fixedly connected inside the slide groove (32), and a limiting piece (36) fixedly connected to the right end of the positioning rod (35), the limiting piece (36) being slidably connected inside the slider (34).
3. The silicone tube injection molding device with quick mold head change according to claim 2, characterized in that, The installation mechanism (3) also includes a spring (37) sleeved on the side of the positioning rod (35), and a sealing groove (38) is provided at the right end of the fixing ring (31).
4. A silicone tube injection molding device with quick mold head change according to claim 3, characterized in that, The mold head mechanism (4) includes a sleeve (41) sleeved on the right end of the fixing ring (31), and a locking block (42) fixedly connected to the inner wall of the sleeve (41), wherein the locking block (42) is provided in two sets.
5. A silicone tube injection molding device with quick mold head change according to claim 4, characterized in that, The mold head mechanism (4) also includes a sealing ring (43) fixedly connected inside the sleeve (41), and a connecting rod (44) fixedly connected inside the sleeve (41). The connecting rod (44) is provided in two sets. The mold head mechanism (4) also includes a central rod (45) fixedly connected between the two sets of the connecting rods (44).
6. A silicone tube injection molding device with quick mold head change according to claim 5, characterized in that, A fixing plate (5) is fixedly connected to the upper end of the base (1), and a telescopic cylinder (6) is fixedly connected to the left side of the fixing plate (5).
7. A silicone tube injection molding device with quick mold head change according to claim 6, characterized in that, The extrusion tube (2) is slidably connected to an extrusion rod (7), the output end of the telescopic cylinder (6) is fixedly connected to the extrusion rod (7), and the circumferential side of the extrusion tube (2) is fixedly connected to a feed groove (8).
8. A silicone tube injection molding device with quick mold head change according to claim 7, characterized in that, A bracket (9) is fixedly connected to the upper end of the base (1), a motor (10) is fixedly connected to the upper end of the bracket (9), and a screw rod (11) is fixedly connected to the output end of the motor (10).