Plastic extrusion forming mold convenient to replace

Abstract

The utility model relates to the technical field of molds, and provides a plastic extrusion molding mold convenient to replace, which comprises a base and a top column, electric push rods are fixed on two sides of the top end of the base, the top column is fixed in the middle of the top end of the base, guide rods are fixed at corners of the top end of the base, a movable seat is arranged above the base, and a movable block is arranged on the movable seat. A through hole is formed in the middle of the movable base, the top ends of the guide rods penetrate through the movable base and are fixedly provided with a top base, and an upper die base is arranged at the bottom end of the top base. The extrusion structure is arranged, the electric push rod is started, the electric push rod can drive the lower die base to move downwards through the movable base, the ejection column penetrates through the through hole to enable the push plate to drive the supporting rod so that a formed product can be ejected out, the supporting rod is reset under the action of the reset spring, and the function that the device is convenient to demold is achieved. And therefore, the applicability of the plastic extrusion forming mold convenient to replace during use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a plastic extrusion molding mold which is easy to replace. Background Art

[0002] Extrusion molds are a type of molding mold, except that their material discharging method is achieved through extrusion. However, it is inconvenient to replace the existing plastic extrusion molding molds during use, so a plastic extrusion molding mold that is easy to replace is used;

[0003] To this end, the patent with publication number CN219667333U discloses a plastic extrusion molding die, which relates to the field of molds, including: a fixed mold and a movable mold, the outer end of the fixed mold is provided with an injection port, and the fixed mold is provided with a first branch flow channel, a second branch flow channel and a side flow channel, the outer port of the second branch flow channel is provided with an inner limit block and an outer limit block, and a spring is provided on the outer side of the inner limit block, a sealing block is provided on the outer end of the spring, and a movable block is connected to the outer end of the sealing block, the outer limit block is placed on the outer side of the sealing block, the inner end face of the fixed mold is provided with four protrusions, and the inner end face of the movable mold is provided with four molding cavities corresponding to the positions of the protrusions, and a mechanical arm is provided at the upper end of the movable mold, and a material receiving device is connected to the lower end of the mechanical arm. The utility model solves the problems of low production efficiency of plastic extrusion molding die in the prior art, troublesome product removal, and waste of rubber outflow;

[0004] Although the plastic extrusion molding die mentioned above can prevent the rubber material from overflowing from the second branch flow channel in the heated and heat-insulated melt flow state, it is inconvenient to demould the molded product when using the device, which makes it less suitable for use. Utility Model Content

[0005] The utility model aims to provide a plastic extrusion molding die which is easy to replace, so as to solve the defect that the existing plastic extrusion molding die which is easy to replace is inconvenient to demould.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a plastic extrusion molding die that is easy to replace, comprising a base and a top column;

[0007] Electric push rods are fixed on both sides of the top of the base, a top column is fixed in the middle of the top of the base, guide rods are fixed at the corners of the top of the base, a moving seat is arranged above the base, a through hole is opened in the middle of the moving seat, the tops of the guide rods pass through the moving seat and are fixed with a top seat, an upper die seat is arranged at the bottom of the top seat, and fixed structures are arranged on both sides of the top of the upper die seat;

[0008] A lower die seat is installed on the top of the movable seat;

[0009] An extrusion structure is provided at the bottom of the lower die seat, and the extrusion structure includes a built-in cavity, a push plate, a support rod and a return spring. The built-in cavity is opened at the bottom of the lower die seat, and a push plate is provided at the top of the movable seat inside the built-in cavity. Support rods are evenly fixed on both sides of the top of the push plate, and a return spring is provided on the outer side of the support rod.

[0010] When using the device, by providing an extrusion structure, the device can realize the function of easy demoulding, thereby improving the applicability of the plastic extrusion molding die that is easy to replace when in use; by providing a fixing structure, the device can realize the function of easy replacement of the upper mold base, thereby improving the convenience of the plastic extrusion molding die that is easy to replace when in use.

[0011] Preferably, the support rods are symmetrically distributed on the top of the push plate, and the top of the support rods extends to the top of the lower die seat. When the electric push rod is started, the electric push rod drives the lower die seat to move downward through the moving seat, so that the ejector column passes through the through hole to drive the push plate to drive the support rods to eject the formed product, and the support rods are reset under the action of the reset spring.

[0012] Preferably, the bottom end of the return spring is fixedly connected to the top end of the push plate, and the top end of the return spring is fixedly connected to the inner wall of the lower die base.

[0013] Preferably, the fixing structure includes a slider, a slide groove, a fixing seat and a threaded handle, wherein the slide grooves are opened on both sides of the top of the upper die seat, sliders are arranged inside the slide grooves, fixing seats are evenly fixed at the bottom ends of the top seats on both sides of the upper die seat, and threaded handles are passed through the inside of the fixing seats. The slide groove on the top of the upper die seat is aligned with the slider and moved to a suitable position, and the threaded handle is rotated to fix the upper die seat and the slider through the threaded handle.

[0014] Preferably, the top end of the slider extends to the outside of the upper mold base and is fixedly connected to the bottom end of the top base, and one end of the threaded handle extends to the inside of the slider.

[0015] Preferably, the slider and the threaded handle are designed to be threadedly connected, and the slide grooves are symmetrically distributed on both sides of the top of the upper mold base.

[0016] Preferably, the sliding block and the upper die seat form a sliding structure through a sliding groove, and cavities are provided on both sides of the bottom of the upper die seat.

[0017] The plastic extrusion molding die that is easy to replace provided by the utility model has the advantages that:

[0018] By providing an extrusion structure, the electric push rod is started, and the electric push rod drives the lower mold base to move downward through the moving seat, so that the ejector column passes through the through hole to drive the push plate to drive the support rod to eject the molded product. Under the action of the reset spring, the support rod is reset, and the function of the device to facilitate demoulding is realized, thereby improving the applicability of the plastic extrusion molding mold that is easy to replace when in use;

[0019] By providing a fixed structure, the slide groove on the top of the upper mold base is aligned with the slider and moved to a suitable position, and then the threaded handle is rotated to fix the upper mold base and the slider through the threaded handle, thereby realizing the function of facilitating the replacement of the upper mold base, thereby improving the convenience of the plastic extrusion molding mold that is easy to replace when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;

[0022] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0024] Figure 5 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0025] Explanation of the reference numerals in the figure: 1. base; 2. push column; 3. electric push rod; 4. guide rod; 5. moving seat; 6. top seat; 7. lower die seat; 8. extrusion structure; 801. built-in cavity; 802. push plate; 803. support rod; 804. return spring; 9. through hole; 10. fixed structure; 1001. slider; 1002. slide groove; 1003. fixed seat; 1004. threaded handle; 11. upper die seat. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5The utility model provides a plastic extrusion molding die that is easy to replace, including a base 1 and a top column 2. Electric push rods 3 are fixed on both sides of the top of the base 1. The top column 2 is fixed in the middle of the top of the base 1. Guide rods 4 are fixed at the corners of the top of the base 1. A moving seat 5 is arranged above the base 1. A through hole 9 is opened in the middle of the moving seat 5. The top of the guide rod 4 passes through the moving seat 5 and is fixed with a top seat 6. An upper mold seat 11 is arranged at the bottom end of the top seat 6. Fixed structures 10 are arranged on both sides of the top of the upper mold seat 11. The fixed structure 10 includes a slider 1001, a slide groove 1002, a fixed seat 1003 and a threaded handle 1004. The slide grooves 1002 are opened on the upper mold On both sides of the top of the seat 11, sliders 1001 are arranged inside the slide groove 1002, and fixed seats 1003 are evenly fixed at the bottom ends of the top seats 6 on both sides of the upper mold seat 11, and threaded handles 1004 are passed through the inside of the fixed seats 1003. The top of the slider 1001 extends to the outside of the upper mold seat 11 and is fixedly connected to the bottom end of the top seat 6, and one end of the threaded handle 1004 extends to the inside of the slider 1001. The slider 1001 and the threaded handle 1004 are designed to be threadedly connected, and the slide groove 1002 is symmetrically distributed on both sides of the top of the upper mold seat 11. The slider 1001 and the upper mold seat 11 form a sliding structure through the slide groove 1002, and cavities are arranged on both sides of the bottom of the upper mold seat 11.

[0028] Reference Figure 1 and Figure 5 As shown, align the slide groove 1002 on the top of the upper mold base 11 with the slider 1001 and move it to a suitable position, then rotate the threaded handle 1004 to fix the upper mold base 11 and the slider 1001 through the threaded handle 1004.

[0029] A lower die base 7 is installed at the top of the movable seat 5, and an extrusion structure 8 is arranged at the bottom of the lower die base 7. The extrusion structure 8 includes an inner cavity 801, a push plate 802, a support rod 803 and a return spring 804. The inner cavity 801 is opened at the bottom of the lower die base 7, and a push plate 802 is arranged at the top of the movable seat 5 inside the inner cavity 801. Support rods 803 are evenly fixed on both sides of the top of the push plate 802. The outer side of the support rod 803 is sleeved with a return spring 804. The support rods 803 are symmetrically distributed at the top of the push plate 802, and the top of the support rod 803 extends to the top of the lower die base 7. The bottom end of the return spring 804 is fixedly connected to the top of the push plate 802, and the top of the return spring 804 is fixedly connected to the inner wall of the lower die base 7.

[0030] Reference Figure 1 and Figure 3-4 As shown, start the electric push rod 3, which will drive the lower mold base 7 to move downward through the moving base 5, so that the ejector column 2 passes through the through hole 9 to drive the push plate 802 to drive the support rod 803 to eject the formed product, and under the action of the reset spring 804, the support rod 803 is reset.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plastic extrusion molding die that is easy to replace, comprising a base (1) and a top column (2); Features: Electric push rods (3) are fixed on both sides of the top of the base (1), a top column (2) is fixed in the middle of the top of the base (1), guide rods (4) are fixed at the corners of the top of the base (1), a movable seat (5) is arranged above the base (1), a through hole (9) is opened in the middle of the movable seat (5), the top of the guide rod (4) passes through the movable seat (5) and is fixed with a top seat (6), an upper die seat (11) is arranged at the bottom of the top seat (6), and fixed structures (10) are arranged on both sides of the top of the upper die seat (11); A lower die seat (7) is installed on the top of the movable seat (5); An extrusion structure (8) is provided at the bottom of the lower die base (7), and the extrusion structure (8) includes a built-in cavity (801), a push plate (802), a support rod (803) and a return spring (804). The built-in cavity (801) is opened at the bottom of the lower die base (7), and a push plate (802) is provided at the top of the movable seat (5) inside the built-in cavity (801). Support rods (803) are evenly fixed on both sides of the top of the push plate (802), and a return spring (804) is sleeved on the outer side of the support rod (803).

2. The easily replaceable plastic extrusion molding die according to claim 1, characterized in that: The support rods (803) are symmetrically distributed on the top of the push plate (802), and the top of the support rods (803) extends to the top of the lower mold base (7).

3. The easily replaceable plastic extrusion molding die according to claim 1, characterized in that: The bottom end of the return spring (804) is fixedly connected to the top end of the push plate (802), and the top end of the return spring (804) is fixedly connected to the inner wall of the lower die base (7).

4. The easily replaceable plastic extrusion molding die according to claim 1, characterized in that: The fixing structure (10) comprises a slider (1001), a slide groove (1002), a fixing seat (1003) and a threaded handle (1004); the slide grooves (1002) are both opened on both sides of the top of the upper die seat (11); the slider (1001) is arranged inside the slide groove (1002); the fixing seats (1003) are evenly fixed at the bottom ends of the top seats (6) on both sides of the upper die seat (11); and the fixing seats (1003) are penetrated by the threaded handles (1004).

5. The easily replaceable plastic extrusion molding die according to claim 4, characterized in that: The top end of the slider (1001) extends to the outside of the upper mold base (11) and is fixedly connected to the bottom end of the top base (6), and one end of the threaded handle (1004) extends to the inside of the slider (1001).

6. The easily replaceable plastic extrusion molding die according to claim 4, characterized in that: The slider (1001) and the threaded handle (1004) are designed to be threadedly connected, and the slide grooves (1002) are symmetrically distributed on both sides of the top of the upper mold base (11).

7. The easily replaceable plastic extrusion molding die according to claim 4, characterized in that: The sliding block (1001) and the upper die seat (11) form a sliding structure through a sliding groove (1002), and cavities are arranged on both sides of the bottom of the upper die seat (11).

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