A sliding door frame PVC soft and hard co-extrusion molding equipment

Abstract

This utility model relates to the field of door frame manufacturing technology, and in particular to a PVC soft and hard co-extrusion molding equipment for sliding door frames. It includes a frame with two extruders mounted on it. A co-extrusion die is installed between the extrusion ports of the two extruders. A feeding mechanism is provided between the two extruders. The feeding mechanism includes: a main component comprising a material box positioned above the hoppers of the two extruders; a separating component comprising a partition rotatably mounted inside the lower middle part of the material box, a gear fixed to the front end of the partition, a groove fixed to the lower end of the front surface of the material box, a rack slidably mounted inside the groove, an electric push rod pivotally connected to the front surface of the material box, and the output end of the electric push rod pivotally connected to the rack; and a protective cover fixed to the front end of the material box. The single feeding system enables precise material distribution between the two extruders, reducing costs and saving space. Automatic unblocking and anti-clogging ensure continuous production, especially suitable for the easily agglomerated characteristics of soft PVC.

Description

Technical Field

[0001] This utility model relates to the field of door frame production technology, specifically to a PVC soft and hard co-extrusion molding equipment for sliding door frames. Background Technology

[0002] In the door and window manufacturing industry, PVC rigid-flexible co-extrusion technology is widely used in the production of sliding door frames because it can simultaneously achieve the dual functions of structural support and sealing buffer. This technology combines rigid PVC and flexible PVC materials in a molten state through extrusion, giving the finished profile both rigidity and elasticity, perfectly meeting the dual requirements of modern sliding doors for durability and airtightness, and has become one of the mainstream processes in the current high-end door and window profile manufacturing.

[0003] According to CN217553063U, a soft and hard co-extrusion device for thermal insulation glass door frames is disclosed. This technology discloses "a soft and hard co-extrusion device for thermal insulation glass door frames, including a water collection tank with an opening at the top. The water collection tank is fixedly installed at the bottom of a water tank, a water pump is installed on one side of the water collection tank, and a water pipe is installed on the water pump. The water collection tank is connected to the bottom of the water tank through the water pipe. A heat dissipation mechanism is installed inside the water collection tank; the heat dissipation mechanism includes a rotating tube, which is horizontally arranged. A water pipe is inserted into one end of the rotating tube, and a sealing disc is fixedly and sealed at the other end of the rotating tube. The rotating tube and the water pipe are rotated and sealed together. This soft and hard co-extrusion device for thermal insulation glass door frames" has the technical effect of "achieving heat dissipation of cooling water, preventing excessively high cooling water temperature from affecting the cooling effect; in addition, it also filters water by trapping impurities in the water through a filter screen, and simultaneously cleans the filter screen, preventing filter screen blockage."

[0004] In the existing PVC co-extrusion production process for sliding door frames, the traditional process requires two independent feeding systems to feed materials to the rigid PVC and flexible PVC extruders respectively. This configuration not only significantly increases equipment procurement and maintenance costs, but also occupies valuable production space, resulting in reduced plant utilization. At the same time, the operation of the dual feeding system requires more operators and energy consumption, further increasing production costs. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a PVC soft and hard co-extrusion molding equipment for sliding door frames. It achieves precise material distribution between dual extruders through a single feeding system, reducing costs and saving space. It also features automatic unblocking and anti-clogging to ensure continuous production, and is particularly suitable for the clumping characteristics of soft PVC.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a PVC soft and hard co-extrusion molding equipment for sliding door frames, comprising a frame, two extruders mounted on the frame, a co-extrusion die installed between the extrusion ports of the two extruders, and a feeding mechanism between the two extruders, the feeding mechanism comprising:

[0007] The main component includes a hopper positioned between the hoppers of the two extruders;

[0008] The partition assembly includes a partition plate rotatably installed inside the lower middle part of the material box, a gear fixed at the front end of the partition plate, a slide groove fixed at the lower end of the front surface of the material box, a rack slidably installed inside the slide groove, an electric push rod pivotally connected to the front surface of the material box, and the output end of the electric push rod pivotally connected to the rack, and a protective cover fixed at the front end of the material box.

[0009] The unblocking component is installed on the main component and is used for unblocking material discharge.

[0010] Preferably, the partition assembly further includes a sealing seat fixed to the lower middle part of the inside of the hopper, and the upper end of the sealing seat matches and fits against the lower end of the partition.

[0011] Preferably, the unblocking component includes a gantry frame fixed to the upper end of the material box, a cylinder installed on the top of the gantry frame, a frame fixed to the output end of the cylinder, and an unblocking head provided on the frame.

[0012] Preferably, the unclogging head includes a plurality of spikes fixed to the bottom of the frame, and the outer wall of the spikes is fixed with a plurality of barbs.

[0013] Preferably, the frame is provided with a grid mesh, and a balance bar is slidably installed through both ends of the gantry frame, with the lower end of the balance bar fixed to the frame.

[0014] Preferably, the main component further includes a material slope fixed at the rear of the upper end of the material box, and material inlets are fixed on both sides of the lower end of the material box, with the two material inlets respectively fixed on the hoppers of the two extruders.

[0015] Beneficial effects

[0016] This utility model provides a PVC soft and hard co-extrusion molding equipment for sliding door frames. Compared with the prior art, it has the following advantages:

[0017] 1. The rack is driven to slide along the inside of the chute by the output end of the electric push rod. At the same time, the rack drives the partition to flip through the gear. When it flips to the leftmost position, it can feed material to the extruder on the right through the right feed port. When it flips to the rightmost position, it can feed material to the extruder on the left through the left feed port. This allows a single feeding device to feed material to the feeding mechanism, thus completing the separate feeding of the two extruders, reducing equipment costs and improving space utilization.

[0018] 2. The cylinder output drives the frame to move the unclogging head up and down repeatedly, thereby unclogging the raw materials accumulated inside the hopper and ensuring continuous material supply; at the same time, the barbs on the spiked head enhance the unclogging effect and break up clumps of raw materials, which is especially suitable for soft PVC granules that are easy to absorb moisture. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the feeding mechanism in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the separator component in this utility model;

[0022] Figure 4 This is a cross-sectional view of the material box in this utility model;

[0023] Figure 5 This is a schematic diagram of the unblocking component in this utility model.

[0024] In the diagram: 1. Frame; 2. Extruder; 3. Co-extrusion die; 4. Feeding mechanism; 41. Main component; 411. Material box; 412. Material slope; 413. Material inlet; 42. Separator component; 421. Partition; 422. Gear; 423. Slide; 424. Rack; 425. Electric push rod; 426. Sealing seat; 427. Protective cover; 43. Unblocking component; 431. Gantry; 432. Cylinder; 433. Frame; 434. Unblocking head; 4341. Spike; 4342. Barb; 435. Grating; 436. Balance bar. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0026] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a PVC soft and hard co-extrusion molding equipment for sliding door frames, including a frame 1, two extruders 2 are arranged on the frame 1, a co-extrusion die 3 is installed between the extrusion ports of the two extruders 2, and a feeding mechanism 4 is arranged between the two extruders 2, the feeding mechanism 4 including:

[0027] The main component 41 includes a hopper 411 disposed between the hoppers of the two extruders 2;

[0028] The separating component 42 includes a partition 421 rotatably installed inside the lower middle part of the material box 411. A gear 422 is fixed at the front end of the partition 421. A slide groove 423 is fixed at the lower end of the front surface of the material box 411. A rack 424 is slidably installed inside the slide groove 423. An electric push rod 425 is pivotally connected to the front surface of the material box 411, and the output end of the electric push rod 425 is pivotally connected to the rack 424. A protective cover 427 is fixed at the front end of the material box 411.

[0029] The unblocking component 43 is installed on the main component 41 and is used for unblocking material discharge.

[0030] In this embodiment, the output end of the electric push rod 425 drives the rack 424 to slide along the inside of the slide groove 423. At the same time, the rack 424 drives the partition 421 to rotate through the gear 422. When rotated to the leftmost position, the material can be fed to the right extruder 2 through the right feed port 413. When rotated to the rightmost position, the material can be fed to the left extruder 2 through the left feed port 413. This allows a single feeding device to feed the feeding mechanism 4, thus completing the separate feeding of the two extruders 2, reducing equipment costs and improving space utilization.

[0031] Specifically, the separator assembly 42 also includes a sealing seat 426 fixed inside the lower middle part of the hopper 411, and the upper end of the sealing seat 426 matches and fits the lower end of the partition 421.

[0032] In this embodiment, the partition 421 is made to fit against the sealing seat 426 when it is rotated to any angle, ensuring the sealing between the partition 421 and the sealing seat 426 and preventing raw material leakage or cross-contamination.

[0033] Specifically, the unblocking component 43 includes a gantry frame 431 fixed to the upper end of the material box 411, a cylinder 432 installed on the top of the gantry frame 431, a frame 433 fixed to the output end of the cylinder 432, and an unblocking head 434 provided on the frame 433.

[0034] In this embodiment, the output end of the cylinder 432 drives the frame 433 to move the unblocking head 434 up and down repeatedly, thereby unblocking the raw materials accumulated inside the material box 411 and ensuring continuous material supply.

[0035] Specifically, the unblocking head 434 includes several spikes 4341 fixed to the bottom of the frame 433, and several barbs 4342 are fixed on the outer wall of the spikes 4341.

[0036] In this embodiment, the barbs 4342 on the spike 4341 enhance the unblocking effect and break up clumps of raw materials, which is especially suitable for soft PVC granules that are easy to absorb moisture.

[0037] Specifically, a grid mesh 435 is provided inside the frame 433, and a balance bar 436 is slidably installed through both ends of the gantry frame 431, with the lower end of the balance bar 436 fixed to the frame 433.

[0038] In this embodiment, before the raw material enters the material box 411, the grid 435 on the frame 433 is located inside the material box 411, so that the grid 435 can coarsely screen the raw material and prevent larger particles of raw material from entering.

[0039] Specifically, the main component 41 also includes a material slope 412 fixed at the rear of the upper end of the material box 411, and material inlets 413 fixed on both sides of the lower end of the material box 411, with the two material inlets 413 respectively fixed on the hoppers of the two extruders 2.

[0040] In this embodiment, the two extruders 2 are a rigid PVC extruder and a flexible PVC extruder, respectively, and they share a co-extrusion die 3. The melts from the rigid PVC extruder and the flexible PVC extruder are in a semi-molten state when they meet at the co-extrusion die 3. The flow channel design and temperature gradient of the co-extrusion die 3 ensure that the flexible layer and the rigid layer are bonded together, thus meeting the dual requirements of sealing the sliding door frame structure.

[0041] The working principle and usage process of this utility model are as follows: First, the output end of the electric push rod 425 drives the rack 424 to slide along the inside of the slide groove 423. At the same time, the rack 424 drives the partition 421 to rotate through the gear 422. When rotated to the leftmost position, the material can be fed to the right extruder 2 through the right feed port 413. When rotated to the rightmost position, the material can be fed to the left extruder 2 through the left feed port 413. This enables a single feeding device to feed the feeding mechanism 4, thereby completing the separate feeding of the two extruders 2, reducing equipment costs and improving space utilization.

[0042] Furthermore, the partition 421 fits into the sealing seat 426 when it is rotated to any angle, ensuring the sealing between the partition 421 and the sealing seat 426 and preventing raw material leakage or cross-contamination.

[0043] Then, the output end of the cylinder 432 drives the frame 433 to move the unblocking head 434 up and down repeatedly, thereby unblocking the raw materials accumulated inside the material box 411 and ensuring continuous material supply; at the same time, the barbs 4342 on the spike head 4341 enhance the unblocking effect and break up the clumps of raw materials, which is especially suitable for soft PVC granules that are easy to absorb moisture.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PVC soft and hard co-extrusion molding equipment for sliding door frame, comprising a frame (1), two extruders (2) are arranged on the frame (1), a co-extrusion die head (3) is installed between the extrusion outlets of the two extruders (2), characterized in that: A feeding mechanism (4) is provided between the two extruders (2), and the feeding mechanism (4) includes: The main component (41) includes a hopper (411) disposed between the hoppers of the two extruders (2); The partition assembly (42) includes a partition plate (421) rotatably mounted inside the lower middle part of the material box (411), a gear (422) fixed at the front end of the partition plate (421), a slide groove (423) fixed at the lower end of the front surface of the material box (411), a rack (424) slidably mounted inside the slide groove (423), an electric push rod (425) pivotally connected to the front surface of the material box (411), and the output end of the electric push rod (425) pivotally connected to the rack (424), and a protective cover (427) fixed at the front end of the material box (411). The unblocking component (43) is installed on the main component (41) and is used for unblocking material discharge.

2. The PVC soft and hard co-extrusion molding equipment for sliding door frame according to claim 1, characterized in that: The partition assembly (42) also includes a sealing seat (426) fixed inside the lower middle part of the hopper (411), and the upper end of the sealing seat (426) matches and fits the lower end of the partition (421).

3. The PVC soft and hard co-extrusion molding equipment for sliding door frame according to claim 1, characterized in that: The unblocking component (43) includes a gantry frame (431) fixed to the upper end of the material box (411), a cylinder (432) is installed on the top of the gantry frame (431), a frame (433) is fixed to the output end of the cylinder (432), and an unblocking head (434) is provided on the frame (433).

4. The PVC soft and hard co-extrusion molding equipment for sliding door frame according to claim 3, characterized in that: The unclogging head (434) includes a number of spikes (4341) fixed to the bottom of the frame (433), and a number of barbs (4342) are fixed on the outer wall of the spikes (4341).

5. The PVC soft and hard co-extrusion molding equipment for sliding door frames according to claim 3, characterized in that: The frame (433) is provided with a grid mesh (435) inside, and a balance bar (436) is slidably installed through both ends of the gantry frame (431), with the lower end of the balance bar (436) fixed on the frame (433).

6. The PVC soft and hard co-extrusion molding equipment for sliding door frames according to claim 1, characterized in that: The main component (41) also includes a material slope (412) fixed at the rear of the upper end of the material box (411), and material inlets (413) are fixed on both sides of the lower end of the material box (411), and the two material inlets (413) are respectively fixed on the hoppers of the two extruders (2).

Images