A plastic product extrusion molding die structure facilitating quick die replacement

Abstract

The utility model discloses a plastic product extrusion forming die head structure convenient to quick replacement mould, including feed inlet, the front plate is fixedly installed to feed inlet rear side, the back head is installed to front plate rear side, install the fixing piece on the front plate, the back head inboard sleeve joint fixed mounting has rear material mouth, rear material mouth is connected with feed inlet, the mould is provided with to front plate side, the mould can be connected fixed with front plate through the fixing piece, the utility model discloses, mould installation convenient and fixed effect is good, the replacement of mould is very convenient, and the runner cross section can be adjusted in real time, and the different viscosity materials are adapted, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of extrusion molding die technology, and in particular to a plastic product extrusion molding die head structure that facilitates quick die replacement. Background Technology

[0002] Currently, extrusion molding is a common process in the production of modified plastics and masterbatches. This process frequently utilizes hot melt extrusion units and extrusion dies. Currently, most extrusion dies are fixed to the hot melt extrusion unit with several screws. When installing the extrusion die, the screws pass through the die and lock it onto the hot melt extrusion unit. This makes disassembly extremely inconvenient, requiring all screws to be completely unscrewed, significantly impacting the efficiency of die removal. Furthermore, the amount of screw tightening required during die installation is substantial, potentially reducing installation efficiency and consequently affecting production efficiency. Therefore, it is necessary to redesign the installation structure of extrusion dies.

[0003] Chinese patent CN215750663U relates to the field of extrusion molding die technology, and more particularly to an extrusion molding die head. It is used to process irregularly shaped tubes, the irregularly shaped tubes including a tube wall and supporting ribs connected to the tube wall, with several partitioned cavities formed between the supporting ribs and the tube wall. The extrusion molding die head includes a die with a forming cavity and a core die placed within the forming cavity. The core die includes a feeding part and a forming part for forming the irregularly shaped tube. The feeding part has a feeding port, and a material channel communicating with the feeding port is formed between the forming part and the die. The material channel includes a first material channel for forming the tube wall and a second material channel for forming the supporting ribs. This utility model, by designing the forming cavity of the die and the forming part of the core die to form the first and second material channels, enables an extrusion molding die head to process irregularly shaped round tubes to meet different application needs. However, this utility model cannot easily change the die according to actual conditions, nor can it adjust the flow channel cross-section in real time to adapt to materials with different viscosities, requiring improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a plastic product extrusion die head structure that facilitates quick die replacement. The die is easy to install and has a good fixing effect, and the die replacement is very convenient. The flow channel cross-section can be adjusted in real time to adapt to materials of different viscosities, resulting in good performance. This solves the problems mentioned in the background art, such as the need to completely unscrew all the screws to disassemble the extrusion die head, which is very inconvenient and greatly affects the efficiency of extrusion die head disassembly; and the large amount of screw tightening required when installing the extrusion die head, which easily leads to a decrease in the installation efficiency of the extrusion die head.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic product extrusion molding die head structure that facilitates quick mold replacement, including a feed inlet, a front plate fixedly installed on the rear side of the feed inlet, a rear head installed on the rear side of the front plate, a fixing member installed on the front plate, a rear material outlet fixedly installed on the inner side of the rear head, the rear material outlet being connected to the feed inlet, and a mold provided on the side of the front plate, the mold being connected and fixed to the front plate through the fixing member;

[0006] The fastener includes an outer ring, with a stop tooth fixedly installed on the inner side of the outer ring. Multiple sets of the stop teeth are provided, and a limit plate is fixedly installed on their side. A snap-fit ​​connector is provided on the side of the stop tooth, and one side of the snap-fit ​​connector is installed on the front plate.

[0007] Preferably, the feed inlet includes a feed head, the feed head is provided with an inlet, a retaining ring is sleeved on the outside of the feed head, and an adjusting plate is installed on the outside of the feed head.

[0008] Preferably, the adjusting plate includes a back plate, which is fixedly connected to the front plate. An adjusting cylinder is fixedly installed on the back plate, and a baffle is fixedly installed on the adjusting cylinder. The baffle is sleeved with the feed inlet.

[0009] Preferably, the connector includes an outer plate, a locking post is sleeved on the outer plate, a button is fixedly connected to the side of the locking post, and a return spring is sleeved on the side of the locking post.

[0010] Preferably, the mold includes a main body, a connector is fixedly installed on the front side of the main body, and a fixing tooth is fixedly installed on the outer side of the connector.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the mold is easy to install and has a good fixing effect; the mold is very easy to replace; the flow channel cross-section can be adjusted in real time to adapt to materials of different viscosities; and the performance is good. Specifically:

[0012] (1) This plastic product extrusion molding die head structure facilitates quick mold replacement. By setting a fixing part, the mold is easy to install and has a good fixing effect. The mold replacement is very convenient, the disassembly structure is simple, the operation is convenient, and the use effect is good.

[0013] (2) This plastic product extrusion die head structure facilitates quick mold replacement. By setting an adjustment plate, the flow channel cross section can be adjusted in real time. The adjustment operation is simple, adaptable to materials of different viscosities, and has good performance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the feed inlet structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the fastener structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the mold structure of this utility model.

[0019] The following are the annotations in the diagram: 1. Feed inlet; 11. Material head; 12. Inlet; 13. Retaining ring; 14. Adjusting plate; 141. Back plate; 142. Adjusting cylinder; 143. Baffle; 2. Front plate; 3. Rear head; 4. Fixing component; 41. Outer ring; 42. Stop tooth; 43. Limiting plate; 44. Snap connector; 441. Outer plate; 442. Snap post; 443. Button; 444. Return spring; 5. Rear material outlet; 6. Mold; 61. Main body; 62. Connector; 63. Fixing tooth. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Please see Figure 1-4An embodiment of this utility model provides a plastic product extrusion molding die head structure that facilitates quick mold replacement, including a feed inlet 1, a front plate 2 fixedly installed on the rear side of the feed inlet 1, a rear head 3 installed on the rear side of the front plate 2, a fixing member 4 installed on the front plate 2, a rear material outlet 5 fixedly installed on the inner side of the rear head 3, the rear material outlet 5 being connected to the feed inlet 1, and a mold 6 provided on the side of the front plate 2, the mold 6 being fixedly connected to the front plate 2 through the fixing member 4;

[0022] Based on the above structural features, when using this structure, first connect and install the mold 6 with the rear head 3, then operate the fixing part 4 to fix the connection between the mold 6 and the rear head 3. After the connection is completed, the raw material enters from the feed port 1 on the front plate 2 and is extruded and formed through the mold 6 from the rear feed port 5 on the rear head 3.

[0023] Please see Figure 1 and Figure 2 The feed inlet 1 includes a feed head 11, an inlet 12 is provided on the feed head 11, a retaining ring 13 is sleeved on the outside of the feed head 11, and an adjusting plate 14 is installed on the outside of the feed head 11.

[0024] Please see Figure 1 and Figure 2 The adjusting plate 14 includes a back plate 141, which is fixedly connected to the front plate 2. An adjusting cylinder 142 is fixedly installed on the back plate 141, and a baffle 143 is fixedly installed on the adjusting cylinder 142. The baffle 143 is sleeved with the feed inlet 1.

[0025] Based on the above structural features, when this device is in use, after the mold 6 is installed and fixed, when the raw material enters from the inlet 12 on the feed head 11, the adjusting cylinder 142 on the adjusting plate 14 behind the retaining ring 13 is controlled. The adjusting cylinder 142 extends and retracts, causing the baffle 143 to move inside the feed head 11, thus changing the cross-sectional area of ​​the inlet 12 to accommodate raw materials of different viscosities.

[0026] Please see Figure 1 and Figure 3 The fastener 4 includes an outer ring 41, a stop tooth 42 is fixedly installed on the inner side of the outer ring 41, the stop tooth 42 is provided in multiple sets and a limit plate 43 is fixedly installed on its side, a snap connector 44 is provided on the side of the stop tooth 42, and one side of the snap connector 44 is installed on the front plate 2.

[0027] Please see Figure 1 and Figure 3 The card connector 44 includes an outer plate 441, a card post 442 sleeved on the outer plate 441, a button 443 fixedly connected to the side of the card post 442, and a reset spring 444 sleeved on the side of the card post 442.

[0028] Please see Figure 1 and Figure 4The mold 6 includes a main body 61, a connector 62 is fixedly installed on the front side of the main body 61, and a fixing tooth 63 is fixedly installed on the outer side of the connector 62.

[0029] Based on the above structural features, before the device can be put into operation, it needs to be connected and installed. First, the connector 62 on the main body 61 is aligned with the rear head 3 and installed. At this time, the fixing tooth 63 is pushed inward through the gap between the stop teeth 42, so that the locking post 442 on the outer plate 441 is squeezed and slides inward. Then, the main body 61 is rotated so that the fixing tooth 63 contacts the limiting plate 43. At this time, under the action of the return spring 444, the locking post 442 returns to its original position and locks the position of the fixing tooth 63 and achieves fixation. When removing the mold 6, it can be removed by the button 443.

[0030] Working principle: When using this device, it is first necessary to connect and install it. First, align the connector 62 on the main body 61 with the rear head 3 and install it. At this time, push the fixing tooth 63 through the gap between the stop teeth 42 and push it inward, so that the locking post 442 on the outer plate 441 is squeezed and slides inward. Then rotate the main body 61 so that the fixing tooth 63 contacts the limiting plate 43. At this time, under the action of the return spring 444, the locking post 442 returns to its original position and locks the position of the fixing tooth 63 and achieves fixation. When removing the mold 6, it can be removed by the button 443. After the mold 6 is installed and fixed, when the raw material enters from the inlet 12 on the material head 11, the adjusting cylinder 142 on the adjusting plate 14 on the rear side of the retaining ring 13 is controlled. The adjusting cylinder 142 extends and retracts, driving the baffle 143 to move in the material head 11. The cross-sectional area of ​​the inlet 12 is thus changed to adapt to raw materials of different viscosities.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A plastic product extrusion die head structure that facilitates quick mold changing, characterized in that: Includes a feed inlet (1), a front plate (2) is fixedly installed on the rear side of the feed inlet (1), a rear head (3) is installed on the rear side of the front plate (2), a fixing part (4) is installed on the front plate (2), a rear material outlet (5) is fixedly installed on the inner side of the rear head (3), the rear material outlet (5) is connected to the feed inlet (1), and a mold (6) is provided on the side of the front plate (2), the mold (6) can be connected and fixed to the front plate (2) through the fixing part (4); The fastener (4) includes an outer ring (41), and a stop tooth (42) is fixedly installed on the inner side of the outer ring (41). The stop tooth (42) is provided in multiple sets and a limit plate (43) is fixedly installed on its side. A snap connector (44) is provided on the side of the stop tooth (42), and one side of the snap connector (44) is installed on the front plate (2).

2. The extrusion die head structure for plastic products that facilitates quick mold changing according to claim 1, characterized in that: The feed inlet (1) includes a feed head (11), an inlet (12) is provided on the feed head (11), a retaining ring (13) is sleeved on the outside of the feed head (11), and an adjusting plate (14) is installed on the outside of the feed head (11).

3. The extrusion die head structure for plastic products that facilitates quick mold changing according to claim 2, characterized in that: The adjusting plate (14) includes a back plate (141), which is fixedly connected to the front plate (2). An adjusting cylinder (142) is fixedly installed on the back plate (141), and a baffle (143) is fixedly installed on the adjusting cylinder (142). The baffle (143) is sleeved with the feed port (1).

4. The extrusion die head structure for plastic products that facilitates quick mold changing according to claim 1, characterized in that: The snap-fit ​​connector (44) includes an outer plate (441), a snap-fit ​​post (442) is sleeved on the outer plate (441), a button (443) is fixedly connected to the side of the snap-fit ​​post (442), and a reset spring (444) is sleeved on the side of the snap-fit ​​post (442).

5. The extrusion die head structure for plastic products that facilitates quick mold changing according to claim 1, characterized in that: The mold (6) includes a main body (61), a connector (62) is fixedly installed on the front side of the main body (61), and a fixing tooth (63) is fixedly installed on the outer side of the connector (62).

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