An anti-stick extruded structure

Abstract

The utility model relates to an anti -sticky extrusion structure, including extruding pipeline, discharge die head, two groups of symmetrical arc frame and vibration seat, the arc frame is sleeved in the extruding pipeline outside, the inboard surface of arc frame is equipped with L type card edge, the vibration seat is connected in the butt joint of two groups of arc frame, its inboard is equipped with the card slot, the top of L type card edge is equipped with the opening, and the vibration seat is inserted and limit sliding joint from the top of L type card edge through the card slot, the built -in embedded motor in the vibration seat, three groups of pivot are rotationally provided in the vibration seat, and the output end fixed connection of embedded motor is connected with the pivot upper end in the middle, and the outside of pivot in the middle is equipped with the driving tooth, and the outside of both sides pivot is equipped with the driven tooth engaged with the driving tooth, and the bottom of pivot is equipped with the vibration head, vibration head and discharge die head outside movable contact. The utility model effectively solves the technical problem that the present PE shrinkable film blow molding is caused by uneven heating and leads to sticking.

Description

Technical Field

[0001] This utility model relates to the field of PE protective film extrusion, and in particular to an anti-sticking extrusion structure. Background Technology

[0002] PE shrink film is a packaging material made from polyethylene. It is a transparent thermoplastic film with good transparency, flexibility, and tear resistance. It can be heated and shrunk to the shape of the packaged object, achieving tight packaging, protection, and aesthetic display. PE shrink film is widely used in the packaging of food, daily necessities, and electronic products, playing an important role in logistics transportation, moisture and dust protection, and anti-counterfeiting.

[0003] In the production process of PE shrink film, plastic particles need to be heated and melted before film formation. However, when the heating temperature is uneven, the plastic particles melt unevenly, which may cause some of the melted plastic particles to re-solidify and stick to the inside of the heating device. If the molten raw material cannot be cooled and pressed into film in time when it is discharged, it will also stick to the discharge port. Utility Model Content

[0004] To address the technical problem of adhesion caused by uneven heating during the blow molding of existing PE shrink films, as mentioned above.

[0005] This utility model provides an anti-sticking extrusion structure, including an extrusion pipe, a discharge die, two sets of symmetrically arranged arc-shaped frames, and a vibrating seat. The arc-shaped frames are fitted onto the outside of the extrusion pipe, and the inner side of the arc-shaped frames is provided with an L-shaped retaining ridge. The vibrating seat is engaged at the joint of the two sets of arc-shaped frames, and its inner side is provided with a retaining groove. The top of the L-shaped retaining ridge is provided with an opening. The vibrating seat is inserted into the top of the L-shaped retaining ridge through the retaining groove and is limited and slidably engaged. The vibrating seat has a built-in embedded motor. Three sets of rotating shafts are rotatably arranged inside the vibrating seat. The output end of the embedded motor is fixedly connected to the upper end of the middle rotating shaft. The outer side of the middle rotating shaft is provided with a driving tooth, and the outer sides of the two rotating shafts are provided with driven teeth that mesh with the driving tooth. The bottom of the rotating shaft is provided with a vibrating head, and the vibrating head is in movable contact with the outer side of the discharge die.

[0006] As a further improvement to the above solution, the arc-shaped frame is equipped with an electric heating wire, and the inner wall of the arc-shaped frame is provided with a heat-conducting plate to facilitate the transfer of heat from the electric heating wire to the extrusion pipe. The outer wall of the arc-shaped frame is provided with a heat insulation layer to prevent heat loss.

[0007] As a further improvement to the above solution, one set of the arc-shaped frames has a guide pin on its inner wall, and the other set of the arc-shaped frames has a guide groove that engages with the guide pin. The two sets of arc-shaped frames are spliced ​​together after being guided and connected by the guide pin and the guide groove.

[0008] As a further improvement to the above scheme, the tooth surface of the active tooth is a semi-circular structure, and the driven teeth are evenly distributed on the outer side of the two rotating shafts and mesh with the active tooth.

[0009] As a further improvement to the above scheme, a coil spring is connected between the outer wall of the rotating shaft on both sides and the bottom of the active tooth, which is used to drive the rotating shaft on both sides to return to its original position in a non-engaged state.

[0010] As a further improvement to the above solution, a switch group is provided on the outside of the vibration seat to control the start and stop of the embedded motor.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) This utility model uses the electric heating wire and heat-conducting sheet in the arc frame to heat the extrusion pipe evenly, avoiding insufficient melting or local solidification of plastic particles due to uneven temperature, thus reducing adhesion problems from the root. Based on this, the arc frame achieves precise splicing through the cooperation of L-shaped locking edges, guide pins and guide grooves, and is then fixed by the locking groove of the vibration seat. The overall structure is easy to assemble and disassemble and has a firm connection. Based on this, the heat insulation layer on the outer wall of the arc-shaped frame can reduce heat loss, reduce energy consumption and improve production efficiency while ensuring heating effect.

[0012] (2) The vibrating seat of this utility model drives the rotating shaft and vibrating head through the embedded motor to reciprocate and vibrate the outer wall of the discharge die head to prevent the molten raw material from accumulating and sticking at the discharge port and ensure smooth discharge. Based on this, the rotating shaft achieves reciprocating striking of the vibrating head through the meshing design of the active and driven teeth, combined with the elastic return function of the coil spring. It does not require continuous electric drive, has a simple structure, and provides stable vibration effect. Attached Figure Description

[0013] Figure 1 This is a structural illustration of the present utility model; Figure 2 This is a top view of the arc-shaped frame and vibration seat structure of this utility model; Figure 3 This is a top view of the arc-shaped frame of this utility model; Figure 4 This is a cross-sectional view of the vibration seat of this utility model.

[0014] Explanation of key symbols: 1-Extrusion pipe, 2-Discharge die head, 3-Arc frame, 301-Electric heating wire, 302-Heat conducting sheet, 303-Insulation layer, 4-L-shaped retaining rib, 401-Guide pin, 402-Guide groove, 5-Vibration seat, 501-Switch assembly, 6-Slot, 7-Embedded motor, 8-Rotating shaft, 801-Driven gear, 802-Driven gear, 803-Coil spring, 9-Vibration head. Detailed Implementation

[0015] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0018] 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.

[0019] Please combine Figure 1-4An anti-sticking extrusion structure includes an extrusion pipe 1, a discharge die head 2, two sets of symmetrically arranged arc-shaped frames 3, and a vibrating seat 5. The arc-shaped frames 3 are fitted on the outside of the extrusion pipe 1. The inner side of the arc-shaped frames 3 is provided with an L-shaped retaining rib 4. The vibrating seat 5 is engaged at the joint of the two sets of arc-shaped frames 3. The inner side of the vibrating seat 5 is provided with a retaining groove 6. The top of the L-shaped retaining rib 4 is provided with an opening. The vibrating seat 5 is inserted into the top of the L-shaped retaining rib 4 through the retaining groove 6 and is limited and slidably engaged. The vibrating seat 5 has an embedded motor 7. Three sets of rotating shafts 8 are rotatably arranged inside the vibrating seat 5. The output end of the embedded motor 7 is fixedly connected to the upper end of the middle rotating shaft 8. The outer side of the middle rotating shaft 8 is provided with an active tooth 802. The outer sides of the two rotating shafts 8 are provided with driven teeth 801 that mesh with the active tooth 802. The bottom of the rotating shaft 8 is provided with a vibrating head 9. The vibrating head 9 is in movable contact with the outer side of the discharge die head 2.

[0020] Two sets of symmetrical arc-shaped frames 3 are fitted onto the outside of the extrusion pipe 1, with the guide pins 401 on the inner side of one set of arc-shaped frames 3 inserted into the guide grooves 402 of the other set. Precise alignment is achieved through the guiding action of the L-shaped retaining ribs 4, ensuring a tight left-right splicing of the two sets of arc-shaped frames 3. Then, a vibrating seat 5 is inserted through the opening at the top of the L-shaped retaining ribs 4, with the retaining grooves 6 on the inner side of the vibrating seat 5 engaging with the outer side of the two assembled L-shaped retaining ribs 4. The retaining grooves 6 limit the movement of the two sets of arc-shaped frames 3, pressing and fixing them together to form a stable overall structure.

[0021] When in use, the electric heating wire 301 is turned on, and the heat is evenly transferred to the outer wall of the extrusion pipe 1 through the heat-conducting plate 302 to heat and melt the plastic particles inside; at the same time, the heat insulation layer 303 prevents heat from escaping to the outside and ensures heating efficiency.

[0022] Simultaneously, the embedded motor 7 is activated via switch group 501, which drives the intermediate rotating shaft 8 to rotate. At this time, the half-circle tooth surface of the driving tooth 802 on the outer side of the intermediate rotating shaft 8 meshes with the driven tooth 801 on both sides of the rotating shaft 8, driving the two rotating shafts 8 to rotate synchronously, causing the vibrating head 9 to contact the outer wall of the discharge die head 2 and generate a striking force. When the non-tooth surface of the driving tooth 802 engages with the driven tooth 801, the elastic restoring force of the coil spring 803 drives the rotating shaft 8 to return to its original position, causing the vibrating head 9 to strike the discharge die head 2 in the opposite direction. This process is repeated, and the vibrating head 9 continuously vibrates the discharge die head 2 to prevent the molten material from sticking and clogging at the discharge port.

[0023] Based on this, the electric heating wire 301 and the heat-conducting plate 302 ensure that the extrusion pipe 1 is heated evenly and avoid local solidification of plastic particles.

[0024] Based on this, the vibrating head 9 and the coil spring 803, through reciprocating vibration, strike the discharge die head 2, which, combined with the uniformity of heating, doubly prevents the raw materials from sticking.

[0025] Based on this, the L-shaped locking ridge 4 and the locking groove 6 enable quick assembly and disassembly and stable fixation of the arc frame 3 and the vibration seat 5, facilitating equipment maintenance.

[0026] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

Claims

1. An anti-sticking extrusion structure, characterized in that, The device includes an extrusion pipe (1), a discharge die (2), two sets of symmetrically arranged arc-shaped frames (3), and a vibrating seat (5). The arc-shaped frames (3) are fitted around the outside of the extrusion pipe (1). The inner side of the arc-shaped frames (3) is provided with an L-shaped retaining ridge (4). The vibrating seat (5) is engaged at the joint of the two sets of arc-shaped frames (3). Its inner side is provided with a retaining groove (6). The top of the L-shaped retaining ridge (4) is provided with an opening. The vibrating seat (5) is inserted into and limited by the top of the L-shaped retaining ridge (4) through the retaining groove (6). Next, the vibrating seat (5) has a built-in motor (7), and three sets of rotating shafts (8) are arranged inside the vibrating seat (5). The output end of the built-in motor (7) is fixedly connected to the upper end of the middle rotating shaft (8), and the outer side of the middle rotating shaft (8) is provided with active teeth (802). The outer side of the two rotating shafts (8) is provided with driven teeth (801) that mesh with the active teeth (802). The bottom of the rotating shaft (8) is provided with a vibrating head (9), and the vibrating head (9) is in active contact with the outer side of the discharge die head (2).

2. The anti-sticking extrusion structure according to claim 1, characterized in that, The arc frame (3) has an electric heating wire (301) inside. The inner wall of the arc frame (3) is provided with a heat-conducting plate (302) to facilitate the transfer of heat from the electric heating wire (301) to the extrusion pipe (1). The outer wall of the arc frame (3) is provided with a heat insulation layer (303) to prevent heat loss.

3. The anti-sticking extrusion structure according to claim 2, characterized in that, One set of the arc-shaped frames (3) has a guide pin (401) on its inner wall, and the other set of the arc-shaped frames (3) has a guide groove (402) that is inserted and matched with the guide pin (401) on its inner wall. The two sets of arc-shaped frames (3) are spliced ​​together after being guided and connected by the guide pin (401) and the guide groove (402).

4. The anti-sticking extrusion structure according to claim 3, characterized in that, The tooth surface of the active tooth (802) is a semi-circular structure, and the driven tooth (801) is evenly distributed on the outer side of the two rotating shafts (8) and meshes with the active tooth (802).

5. The anti-sticking extrusion structure according to claim 4, characterized in that, A coil spring (803) is connected between the outer wall of the rotating shaft (8) on both sides and the bottom of the active tooth (802) to drive the rotating shaft (8) on both sides to return to its original position in a non-engaged state.

6. The anti-sticking extrusion structure according to claim 5, characterized in that, The vibrating seat (5) is provided with a switch group (501) on the outside, which is used to control the start and stop of the embedded motor (7).

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