Extrusion lamination composite die

Abstract

The utility model relates to the technical field of extrusion lamination composite dies, in particular to an extrusion lamination composite die which is characterized in that a chute is arranged at the bottom of the outer side of an upper die body, a plurality of groups of ejection blocks are arranged in the chute, and the middle of each group of ejection blocks is respectively connected with a fine adjustment screw through threads; the extrusion and lamination composite die has the beneficial effects that when the extrusion and lamination composite die is used, the discharging thickness of the die is adjusted to be uniform; in actual operation, the upper die body and the side plates are hung by a crane, so that the feed ports formed in the middles of the upper die body and the lower die body are connected with a connecting pipeline of a machine, the connecting pipeline is locked and fixed in the feed ports by screwing down the die body locking screws, and then the die is fixed on a rack through the hoisting blocks arranged on the two sides of the upper die body and the lower die body. The mold is powered on through the aviation socket; and then the hand wheel is rotated according to the length of the produced film, so that the hand wheel drives the screw rod arranged in the middle of the hand-cranking bracket to rotate.

Description

Technical Field

[0001] This utility model relates to the field of extrusion coating composite mold technology, specifically to extrusion coating composite mold. Background Technology

[0002] An extrusion coating and lamination mold is a mold used to uniformly coat or laminate molten thermoplastic (such as polyethylene, polypropylene, etc.) onto a substrate (such as paper, BOPP, BOPET, etc.).

[0003] In the existing technology, the working principle of extrusion coating composite mold is to plasticize plastic particles by screw, then extrude them in a linear shape through the die head, stretch them and attach them to the surface of flexible substrates such as paper, film, non-woven fabric, and woven fabric, and then cool, shape and press them into a composite material that combines the barrier and heat-sealing properties of the plastic film layer with the strength and functional properties of the substrate.

[0004] However, there is a significant limitation in existing extrusion coating composite mold technology: the grinding part of the mold lacks an effective adjustment mechanism. Since the grinding part cannot be flexibly adjusted according to actual production needs, this directly leads to uneven material flow distribution during the discharge process. Specifically, the thickness of the material extruded from different positions of the mold varies, with some areas being thicker and others thinner. This results in an overall uneven thickness of the final product, which seriously affects product quality and production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an extrusion coating composite mold to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an inclined groove is provided on the bottom outer side of the upper mold body, and multiple sets of top blocks are provided in the inclined groove. The middle part of each set of top blocks is connected to a fine-tuning screw by a thread, and one end of the fine-tuning screw extends out from the middle of the inclined groove; and the upper mold body and the lower mold body are assembled and connected by mold body locking screws.

[0007] Preferably, the upper mold body and the lower mold body have a feed inlet at the top center, and a coat hanger-type flow channel is provided in the inner center of the upper mold body and the lower mold body. The feed inlet is connected to the coat hanger-type flow channel, and the bottom of the joint between the upper mold body and the lower mold body is the discharge mold port.

[0008] Preferably, the upper mold body and the lower mold body are provided with side plates on both sides, a hand crank bracket is fixedly provided in the middle of the outer side of the side plate, a lead screw is provided in the middle of the hand crank bracket, and a handwheel is connected to the outer end of the lead screw.

[0009] Preferably, a sliding assembly is connected to a lead screw in the middle of the hand crank bracket, and a copper knife and a connecting rod are connected to the bottom inner side of the sliding assembly.

[0010] Preferably, the connecting rod is inserted into the coat hanger-type flow channel opened in the middle of the upper mold body and the lower mold body. The inner end of the connecting rod is connected to a closed copper knife, which is in close contact with the inner wall of the coat hanger-type flow channel. The copper knife is inserted into the discharge mold opening of the upper mold body and the lower mold body.

[0011] Preferably, wiring covers are provided at the middle of the top two sides of the upper mold body and the lower mold body. A wire is provided on the top of the wiring cover located on the same side of the upper mold body and the lower mold body, and the other end of the wire is connected to an aviation socket.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The extrusion coating composite mold proposed in this utility model uses a crane to suspend the upper mold body and side plates, connecting the feed inlet in the middle of the upper and lower mold bodies to the machine's connecting pipe. By tightening the mold body locking screws, the connecting pipe is locked and fixed in the feed inlet. Then, the mold is fixed to the frame using lifting blocks on both sides of the upper and lower mold bodies, and the mold is connected to power via an aviation socket. Next, according to the desired coating length, the handwheel is rotated, causing the handwheel to rotate the lead screw in the middle of the hand crank bracket. This causes the sliding component on the lead screw to move the copper blade and connecting rod into the coat hanger-type flow channel and the die outlet, respectively. The machine moves and adjusts the width of the coating output. Then, it injects thermoplastic into the coat hanger-type flow channel through the connecting pipe and the feed port. The injected thermoplastic flows out from the bottom die outlet of the upper and lower mold bodies to form a coating. Furthermore, when there is a difference in the thickness of the coating extruded from the die outlet, the fine-tuning screw at the corresponding position is turned to move the top block in the inclined groove downward. The top block presses against the bottom outer wall of the upper mold body, causing it to deform accordingly and reduce the thickness of the grinding hole outlet at the corresponding position. This fine-tuning of the corresponding position of the grinding hole outlet prevents uneven coating output. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 This is a cross-sectional view of another aspect of the present invention.

[0017] Figure 4 This is a three-dimensional structural diagram of the fine-tuning screw and top block of this utility model.

[0018] In the diagram: 1. Upper mold body; 2. Lower mold body; 3. Side plate; 4. Hand crank bracket; 5. Copper knife; 6. Handwheel; 7. Wiring cover; 8. Lifting block; 9. Wire; 10. Aviation socket; 11. Mold body locking screw; 12. Fine adjustment screw; 13. Feed port; 14. Clothes hanger type flow channel; 15. Connecting rod; 16. Enclosed copper knife; 17. Inclined groove; 18. Top block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Please see Figures 1 to 4 This utility model provides a technical solution: A sloping groove 17 is provided on the bottom outer side of the upper mold body 1. Multiple sets of top blocks 18 are arranged in the sloping groove 17. A fine-tuning screw 12 is threadedly connected to the middle of each set of top blocks 18, with one end of the fine-tuning screw 12 extending out from the sloping groove 17. The upper mold body 1 and the lower mold body 2 are assembled and connected by mold body locking screws 11. A feed inlet 13 is provided at the top center of the upper mold body 1 and the lower mold body 2. A hanger-type flow channel 14 is provided in the inner center of the upper mold body 1 and the lower mold body 2. The feed inlet 13 communicates with the hanger-type flow channel 14. The bottom of the junction between the upper mold body 1 and the lower mold body 2 is a discharge outlet. Side plates 3 are provided on both sides of the upper mold body 1 and the lower mold body 2. A hand crank is fixedly installed at the outer center of the side plate 3. The hand-cranked support 4 has a lead screw in its middle, with a handwheel 6 connected to its outer end. A sliding assembly is connected to the lead screw in the middle of the hand-cranked support 4, and a copper knife 5 and a connecting rod 15 are connected to the bottom inner side of the sliding assembly. The connecting rod 15 is inserted into a hanger-type flow channel 14 opened in the middle of the upper mold body 1 and the lower mold body 2. A closed copper knife 16 is connected to the inner end of the connecting rod 15, and the closed copper knife 16 is tightly attached to the inner wall of the hanger-type flow channel 14. The copper knife 5 is inserted into the discharge mold opening of the upper mold body 1 and the lower mold body 2. Wiring covers 7 are simultaneously provided on the middle of the top sides of the upper mold body 1 and the lower mold body 2. A wire 9 is installed on the top of the wiring cover 7 located on the same side of the upper mold body 1 and the lower mold body 2, and the other end of the wire 9 is connected to an aviation socket 10.

[0021] In actual use, a crane is used to suspend the upper mold body 1 and the side plate 3, so that the feed port 13 in the middle of the upper mold body 1 and the lower mold body 2 is connected to the connecting pipe of the machine. By tightening the mold body locking screws 11, the connecting pipe is locked and fixed in the feed port 13. Then, the mold is fixed on the machine frame by the lifting blocks 8 set on both sides of the upper mold body 1 and the lower mold body 2, and the mold is connected to the power supply through the aviation socket 10. Then, according to the production coating length, the handwheel 6 is turned, so that the handwheel 6 drives the screw set in the middle of the hand crank bracket 4 to rotate, so that the sliding component on the screw drives the copper knife 5 and the connecting rod 15 to move in the coat hanger-type flow channel 14 and the mold outlet, respectively. The machine adjusts the width of the coating material output, and then injects thermoplastic into the coat hanger-type flow channel 14 through the connecting pipe and the feed port 13. The injected thermoplastic flows out from the bottom die outlet of the upper mold body 1 and the lower mold body 2 to form a coating. Furthermore, when there is a difference in the thickness of the coating material extruded from the die outlet, the fine adjustment screw 12 at the corresponding position is turned to drive the top block 18 in the inclined groove 17 to move down, so that the top block 18 presses against the bottom outer wall of the upper mold body 1, causing it to deform accordingly, reducing the thickness of the grinding hole outlet at the corresponding position, and fine-tuning the corresponding position of the grinding hole outlet to prevent uneven coating material output.

[0022] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. An extrusion coating composite mold, characterized in that: include: An inclined groove (17) is provided on the bottom of the outer side of the upper mold body (1). Multiple sets of top blocks (18) are provided in the inclined groove (17). The middle part of each set of top blocks (18) is connected to a fine adjustment screw (12) by a thread. One end of the fine adjustment screw (12) extends out from the middle of the inclined groove (17). The upper mold body (1) and the lower mold body (2) are assembled and connected by the mold body locking screws (11).

2. The extrusion coating composite mold according to claim 1, characterized in that: The upper mold body (1) and the lower mold body (2) are provided with a feed inlet (13) at the top center, and a coat hanger-type flow channel (14) is provided in the middle of the interior of the upper mold body (1) and the lower mold body (2). The feed inlet (13) is connected to the coat hanger-type flow channel (14), and the bottom of the joint between the upper mold body (1) and the lower mold body (2) is the discharge mold opening.

3. The extrusion coating composite mold according to claim 2, characterized in that: Side plates (3) are provided on both sides of the upper mold body (1) and the lower mold body (2). A hand crank bracket (4) is fixedly provided in the middle of the outer side of the side plate (3). A lead screw is provided in the middle of the hand crank bracket (4), and a handwheel (6) is connected to the outer end of the lead screw.

4. The extrusion coating composite mold according to claim 3, characterized in that: The hand crank bracket (4) has a lead screw connected to a sliding component in the middle, and the inner bottom of the sliding component is connected to a copper knife (5) and a connecting rod (15).

5. The extrusion coating composite mold according to claim 4, characterized in that: The connecting rod (15) is inserted into the coat hanger-type flow channel (14) opened in the middle of the upper mold body (1) and the lower mold body (2). The inner end of the connecting rod (15) is connected to the closed copper knife (16). The closed copper knife (16) is close to the inner wall of the coat hanger-type flow channel (14). The copper knife (5) is inserted into the discharge mold of the upper mold body (1) and the lower mold body (2).

6. The extrusion coating composite mold according to claim 5, characterized in that: Wiring covers (7) are provided on the middle of the top sides of the upper mold body (1) and the lower mold body (2). A wire (9) is provided on the top of the wiring cover (7) located on the same side of the upper mold body (1) and the lower mold body (2). The other end of the wire (9) is connected to an aviation socket (10).

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