Hopper mounting structure of mulching film extruder

Abstract

The utility model provides a hopper mounting structure of a mulching film extruder, which relates to the technical field of mulching film extrusion equipment, and comprises a lower mounting seat, an upper mounting seat and an upper hopper, the upper part of the lower mounting seat is communicated with the upper mounting seat, the top of the upper mounting seat is butted and communicated with the upper hopper, and a lower connecting disc is welded on the outer side of the bottom of the lower mounting seat; the outer side of the upper portion of the lower mounting base is in threaded connection with an upper screw pipe, an upper supporting spring is fixed to the top of the upper screw pipe, and an upper supporting ring is fixed to the top end of the upper supporting spring. The upper mounting seat and the feeding hopper are quickly separated and connected through sliding insertion of the inner sliding insertion pipe and the lower mounting seat, so that the feeding hopper is more convenient and quicker to disassemble and clean residues during material replacement, and the disassembly and assembly time of bolts is saved; the problems that a feeding port and a hopper of the mulching film extruder are cleaned when the hopper of the mulching film extruder is detached and separated, and the time for detaching and installing bolts is long are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ground film extrusion equipment, in particular to a hopper installation structure of a ground film extruder. Background Art

[0002] The mulch film extruder is a device used to produce plastic mulch films for agricultural use. The mulch film extruder forms plastic raw materials into a film through an extrusion process. The feed port of the mulch film extruder is connected to the hopper for the introduction of raw materials.

[0003] The feed port of the mulch extruder and the hopper of the funnel-shaped structure with a large upper part and a small lower part are fixed with bolts. The mulch extruder needs regular maintenance. The hopper of the mulch extruder must be disassembled and separated to clean the feed port and hopper of the mulch extruder. It takes a long time to disassemble and install the bolts, and the narrow material pipe at the bottom of the hopper is subjected to concentrated pressure, which is prone to cracking. Summary of the invention

[0004] The disclosed embodiment relates to a hopper mounting structure for a mulch extruder; when the material in the upper hopper is less, the upper support spring supports the upper mounting seat and the upper hopper to move upward; the shaking caused by the upward movement of the upper hopper can promote the downward movement of the internal raw materials and reduce the residual raw materials on the inner wall of the upper hopper; the upper mounting seat and the upper hopper can achieve rapid separation and connection operations through the sliding insertion of the inner sliding tube and the lower mounting seat; the disassembly and cleaning of the residues in the upper hopper during material change is more convenient and quick, and the time for disassembly and installation of the bolts is saved.

[0005] According to a first aspect of the present disclosure, a hopper mounting structure for a mulch extruder is provided, which specifically includes: a lower mounting seat, an upper mounting seat and an upper hopper, wherein the upper portion of the lower mounting seat is connected to the upper mounting seat, the top of the upper mounting seat is connected to the upper hopper in a butt connection, a lower connecting plate is welded to the outer side of the bottom of the lower mounting seat, an upper screw tube is threadedly connected to the outer side of the upper portion of the lower mounting seat, an upper support spring is fixed to the top of the upper screw tube, and an upper support ring is fixed to the top of the upper support spring.

[0006] In at least some embodiments, an upper connecting plate is welded to the top of the upper mounting seat, an inner sliding tube is welded to the inner side of the bottom of the upper mounting seat, an outer fixing ring is welded and fixed to the outer side of the middle part of the upper mounting seat, outer support rods are fixed on both sides of the outer fixing ring, the outer support rods are fixedly connected to the first support ring, the tail ends of the first support ring and the second support ring are hinged, and a fixing pin is slidably passed through the head end of the second support ring.

[0007] In at least some embodiments, the inner sliding tube is slidably inserted into the inner side of the upper end of the lower mounting seat, and the fixed pin and the slot of the first support ring are slidably connected. When the fixed pin and the first support ring are separated, the second support ring rotates and moves away from the first support ring, so that the upper hopper can be moved out along the open side of the first support ring.

[0008] In at least some embodiments, the first support ring and the second support ring are closed to form an annular structure. The first support ring and the second support ring are in contact with the lower part of the hopper. After the first support ring and the second support ring are closed, the ring formed by the first support ring and the second support ring is in contact with the bottom of the hopper, expanding the support surface for the hopper.

[0009] In at least some embodiments, a bolt connection plate is welded to the lower end of the hopper. The hopper is a funnel-shaped structure that is wider at the top and narrower at the bottom. The bolt connection plate and the upper connection plate are bolted and fixed.

[0010] In at least some embodiments, the top of the upper support ring is in sliding contact with the bottom of the outer fixing ring. The upper support spring supports the upper support ring and the outer fixing ring upward. When there is less material in the hopper, the upper support spring supports the upper support ring and the outer fixing ring to move upward. The outer fixing ring and the upper mounting seat move upward synchronously, and the upper mounting seat and the hopper move upward synchronously.

[0011] In at least some embodiments, the upper screw tube moves axially upward along the lower mounting seat. The upper screw tube compresses the upper support spring, and the upward supporting force of the upper support spring increases. The upper screw tube moves axially along the external thread of the lower mounting seat. The movement of the upper screw tube expands or compresses the length of the upper support spring, and the supporting force of the upper support spring on the upper support ring and the outer fixing ring above is expanded or reduced.

[0012] The utility model provides a hopper installation structure for a plastic film extruder, which has the following beneficial effects:

[0013] When there is less material in the hopper, the upper support spring supports the upper mounting seat and the hopper to move upward. The shaking generated by the upward movement of the hopper can promote the downward movement of the internal raw materials, reducing the situation of raw material residue on the inner wall of the hopper.

[0014] The upper mounting seat and the hopper are quickly separated and connected through the sliding insertion of the inner sliding insertion tube and the lower mounting seat. The disassembly and cleaning of residues during material change of the hopper are more convenient and fast, saving the time for disassembly and installation of bolts.

[0015] The first support ring and the second support ring expand the support surface for the hopper, improving the stability of the hopper. The first support ring and the second support ring share the support pressure of the narrow material pipe at the bottom of the hopper, extending the service life of the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0017] The drawings in the following description only relate to some embodiments of the present utility model and do not limit the present utility model.

[0018] In the drawings:

[0019] Figure 1 A schematic diagram showing the overall structure of the present application;

[0020] Figure 2 A schematic diagram showing the structure of the lower mounting base of the present application;

[0021] Figure 3 A schematic diagram showing the closed state structure of the first support ring and the second support ring of the present application;

[0022] Figure 4 A schematic diagram showing the separated state structure of the first support ring and the second support ring of the present application;

[0023] Figure 5 A schematic diagram showing the structure of the upper support ring of the present application;

[0024] Figure 6 A schematic diagram showing the disassembled state structure of the present application;

[0025] List of reference numerals

[0026] 1. Lower mounting base; 101. Lower connecting plate; 102. Upper screw tube; 103. Upper support spring; 104. Upper support ring;

[0027] 2. Upper mounting base; 201. Upper connecting plate; 202. Inner sliding insertion tube; 203. Outer fixing ring; 204. Outer support rod; 205. First support ring; 206. Second support ring; 207. Fixed pin;

[0028] 3. Feeding hopper; 301. Bolt connecting plate. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments 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 some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] Embodiment 1: Please refer to Figures 1 to 6 :

[0031] The utility model provides a hopper mounting structure for a plastic film extruder, comprising a lower mounting base 1, an upper mounting base 2 and a feeding hopper 3. A lower connecting disc 101 is welded to the outer side of the bottom of the lower mounting base 1. An upper screw pipe 102 is threadedly connected to the outer side of the upper part of the lower mounting base 1. An upper support spring 103 is fixed to the top of the upper screw pipe 102. The top end of the upper support spring 103 is fixed with an upper support ring 104. The upper part of the lower mounting base 1 communicates with the upper mounting base 2. An upper connecting disc 201 is welded to the top of the upper mounting base 2. An inner sliding insertion pipe 202 is welded to the inner side of the bottom of the upper mounting base 2. An outer fixing ring 203 is welded and fixed to the outer side of the middle part of the upper mounting base 2. Outer support rods 204 are fixed to both sides of the outer fixing ring 203. The outer support rods 204 are fixedly connected to a first support ring 205. The tail ends of the first support ring 205 and a second support ring 206 are hinged. A fixed pin 207 is slidably inserted through the head end of the second support ring 206. The inner sliding insertion pipe 202 is slidably inserted into the inner side of the upper end of the lower mounting base 1. The fixed pin 207 is slidably connected to a slot of the first support ring 205. When the fixed pin 207 is separated from the first support ring 205, the second support ring 206 rotates away from the first support ring 205, facilitating the removal of the feeding hopper 3 along the open side of the first support ring 205. The top of the upper mounting base 2 is butt-connected and communicated with the feeding hopper 3. A bolt connecting disc 301 is welded to the lower end of the feeding hopper 3. The feeding hopper 3 is a funnel-shaped structure with a wider top and a narrower bottom. The bolt connecting disc 301 and the upper connecting disc 201 are bolt-fixed.

[0032] In an embodiment of the present disclosure, the first support ring 205 and the second support ring 206 are closed to form an annular structure. The first support ring 205 and the second support ring 206 are in contact with the lower part of the feeding hopper 3. After the first support ring 205 and the second support ring 206 are closed, the ring formed by the first support ring 205 and the second support ring 206 fits against the bottom of the feeding hopper 3, expanding the support surface for the feeding hopper 3 and enhancing the stability of the feeding hopper 3. The first support ring 205 and the second support ring 206 share the pressure on the narrowed feed pipe at the bottom of the feeding hopper 3.

[0033] In an embodiment of the present disclosure, the top of the upper support ring 104 is in sliding contact with the bottom of the outer fixing ring 203. The upper support spring 103 supports the upper support ring 104 and the outer fixing ring 203 upward. When there is less material in the feeding hopper 3, the upper support spring 103 supports the upper support ring 104 and the outer fixing ring 203 to move upward. The outer fixing ring 203 and the upper mounting base 2 move upward synchronously. The upper mounting base 2 and the feeding hopper 3 move upward synchronously. The shaking generated by the upward movement of the feeding hopper 3 can promote the downward movement of the internal raw materials, reducing the raw material residue on the inner wall of the feeding hopper 3.

[0034] In the embodiment of the present disclosure, the upper screw tube 102 moves axially upward along the lower mounting base 1. The upper screw tube 102 compresses the upper support spring 103, and the upward supporting force of the upper support spring 103 increases. The upper screw tube 102 moves axially along the external thread of the lower mounting base 1. The movement of the upper screw tube 102 expands or compresses the length of the upper support spring 103. The supporting force of the upper support spring 103 on the upper support ring 104 and the outer fixing ring 203 above is expanded or reduced, so as to realize the adjustment of the supporting force of the upper support spring 103 on the outer fixing ring 203, the upper mounting base 2 and the feeding hopper 3.

[0035] Embodiment 2: On the basis of Embodiment 1, a spiral tension spring is arranged between the second support ring 206 and the fixed plug pin 207. The spiral tension spring pulls the fixed plug pin 207 to move closer to the second support ring 206. The spiral tension spring maintains the sliding insertion state of the fixed plug pin 207 and the second support ring 206, avoiding the situation that the fixed plug pin 207 separates from the second support ring 206 under vibration.

[0036] The working principle of this embodiment: The lower connecting plate 101 is bolted and fixed to the square plate with the same structure as the feeding port of the plastic film extruder. The material enters the plastic film extruder from the feeding hopper 3 through the upper mounting base 2 and the lower connecting plate 101. When there is less material in the feeding hopper 3, the upper support spring 103 supports the upper support ring 104 and the outer fixing ring 203 to move upward. The outer fixing ring 203 and the upper mounting base 2 move upward synchronously. The upper mounting base 2 and the feeding hopper 3 move upward synchronously. The shaking generated by the upward movement of the feeding hopper 3 can promote the downward movement of the internal raw materials, reducing the residue of the raw materials on the inner wall of the feeding hopper 3. The moving ranges of the upper support spring 103 supporting the upper mounting base 2 and the feeding hopper 3 are within the sliding insertion range of the inner sliding insertion tube 202 and the lower mounting base 1. The upper screw tube 102 moves axially along the external thread of the lower mounting base 1. The movement of the upper screw tube 102 expands or compresses the space of the upper support spring 103. The supporting force of the upper support spring 103 on the upper support ring 104 and the outer fixing ring 203 above is expanded or reduced, so as to realize the adjustment of the supporting force of the upper support spring 103 on the outer fixing ring 203, the upper mounting base 2 and the feeding hopper 3.

[0037] When changing raw materials of different materials, the upper mounting seat 2 and the hopper 3 can be quickly separated and connected through the sliding insertion of the inner sliding insertion tube 202 and the lower mounting seat 1. After the hopper 3 is disassembled, the internal residues can be cleaned, which is more convenient and fast. Compared with the existing method of bolt connection between the hopper 3 and the feeding port of the film extruder, the time for disassembling and installing bolts is saved; after the first support ring 205 and the second support ring 206 are closed, the ring formed by the closure of the first support ring 205 and the second support ring 206 fits on the bottom of the hopper 3, expanding the support surface for the hopper 3 and improving the stability of the hopper 3. The first support ring 205 and the second support ring 206 share the support pressure of the narrowed material pipe at the bottom of the hopper 3, reducing the pressure concentration on the narrowed material pipe at the bottom of the hopper 3 and the prone cracking situation, and improving the service life of the hopper 3.

[0038] In this article, the following points need to be noted:

[0039] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0040] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0041] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A hopper installation structure for a mulch film extruder, comprising: A lower mounting seat (1), an upper mounting seat (2) and an upper hopper (3); characterized in that the upper portion of the lower mounting seat (1) is connected to the upper mounting seat (2), the top of the upper mounting seat (2) is connected to the upper hopper (3), a lower connecting plate (101) is welded to the outer side of the bottom of the lower mounting seat (1), an upper screw tube (102) is threadedly screwed to the outer side of the upper portion of the lower mounting seat (1), an upper supporting spring (103) is fixed to the top of the upper screw tube (102), an upper supporting ring (104) is fixed to the top of the upper supporting spring (103), an upper connecting plate (201) is welded to the top of the upper mounting seat (2), and the upper mounting seat An inner sliding insert (202) is welded on the inner side of the bottom of the upper mounting seat (2), an outer fixing ring (203) is welded and fixed on the outer side of the middle part of the upper mounting seat (2), outer support rods (204) are fixed on both sides of the outer fixing ring (203), the outer support rods (204) and the first supporting ring (205) are fixedly connected, the first supporting ring (205) and the second supporting ring (206) are hinged at the rear ends, and a fixing pin (207) is slidably passed through the head end of the second supporting ring (206), the inner sliding insert (202) is slidably inserted on the inner side of the upper end of the lower mounting seat (1), and the fixing pin (207) and the slot of the first supporting ring (205) are slidably connected.

2. A hopper installation structure for a ground film extruder according to claim 1, characterized in that: The first support ring (205) and the second support ring (206) are closed to form a circular ring structure, and the first support ring (205) and the second support ring (206) are in contact with the lower part of the upper hopper (3).

3. The hopper installation structure of a ground film extruder according to claim 1, characterized in that: A bolt connection plate (301) is welded to the lower end of the upper hopper (3), and the bolt connection plate (301) and the upper connection plate (201) are fixed by bolts.

4. The hopper installation structure of a ground film extruder according to claim 1, characterized in that: The top of the upper support ring (104) and the bottom of the outer fixing ring (203) are slidably fitted, and the upper support spring (103) supports the upper support ring (104) and the outer fixing ring (203) upwards.

5. The hopper installation structure of a ground film extruder according to claim 1, characterized in that: The upper spiral tube (102) moves upward along the axial direction of the lower mounting seat (1), and the upper spiral tube (102) compresses the upper support spring (103), thereby increasing the upward support force of the upper support spring (103).

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