Ring die assembly of straw granulator

Abstract

The utility model discloses a circular mould assembly of a straw granulator, which comprises a circular mould support frame, a circular mould support frame, a power input shaft and a circular mould support frame, the multiple die holes are evenly distributed in the circumferential direction of the circular die supporting frame, and limiting steps are arranged in the multiple die holes; one ends of the forming long sleeves are clamped on the limiting steps in a one-to-one correspondence manner, and the other ends of the forming long sleeves extend out of the outer side of the circular mold supporting frame; one ends of the forming bases abut against one ends of the forming long sleeves in a one-to-one correspondence mode, and the other ends of the forming bases are clamped to the inner side of the circular mold supporting frame; the diameter of the limiting step and the diameter of one end of each forming long sleeve are 52cm. The utility model has the characteristics of easy replacement, reduced wear cost and improved production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and more specifically, to a ring die assembly of a straw pelletizing machine. Background Art

[0002] The straw pelletizer based on the ring die assembly uses the friction between the ring die and the pressure roller to squeeze the straw material into shape. It is widely used in self-propelled straw pelletizer equipment because of its strong material adaptability, high production efficiency, and high straw pellet effect. However, the die hole entrance of the ring die assembly structure is very easy to wear, which greatly reduces the service life of the ring die, and the overall replacement cost is high, affecting the overall production efficiency of the pelletizer. Utility Model Content

[0003] The utility model designs and develops a ring die assembly of a straw pelletizing machine, which improves the replacement efficiency of worn parts through the combination of a limiting step and a forming seat, greatly reduces the replacement cost of worn parts, and improves production efficiency.

[0004] The technical solution provided by the utility model is:

[0005] A ring die assembly for a straw pelletizing machine, comprising:

[0006] A ring die support frame, which is annular in structure and is fixed on the power input shaft; and

[0007] A plurality of die holes are evenly arranged in the circumference of the ring die support frame, and limited steps are arranged inside the plurality of die holes;

[0008] A plurality of long forming sleeves, one end of which is respectively engaged with the limiting step in a one-to-one correspondence, and the other end of which extends out of the outer side of the ring die support frame;

[0009] A plurality of forming seats, one end of which is respectively pressed against one end of the plurality of forming long sleeves, and the other end is clamped on the inner side of the ring die support frame;

[0010] Wherein, the diameter of the limiting step and the diameter of one end of the plurality of formed long sleeves are both 52 cm.

[0011] Preferably, it also includes:

[0012] A base plate fixed on the power input shaft;

[0013] A lower pressure cover, which is annular and fixed to the bottom plate, so that the lower pressure cover and the bottom plate form a receiving cavity;

[0014] Wherein, the ring die support frame is arranged on the lower pressure cover, and a pressure roller assembly is arranged in the accommodating cavity.

[0015] Preferably, the plurality of molding long sleeves each include:

[0016] A first barrel end, one end of which is disposed in the plurality of die holes and the other end of which extends outwardly of the ring die support frame;

[0017] A first flange, which is integrally provided at one end of the first barrel end, and the first flange is engaged with the limiting step;

[0018] The first barrel end is interference fit with one end of the outer side of the plurality of die holes close to the ring die support frame, and the outer diameter of the first flange is 52 cm.

[0019] Preferably, the plurality of forming seats include;

[0020] a second barrel end disposed within the plurality of die holes;

[0021] A second flange, which is integrally provided at one end of the second barrel end, and the second flange is engaged with the inner side of the ring die support frame;

[0022] The second barrel end is interference fit with a plurality of die holes, and the other end of the second barrel end abuts against the first flange, and the outer diameter of the second barrel end is 52 cm.

[0023] Preferably, the arc angle between the central axes of two adjacent die holes is 10°, and the distance between the central axes of two adjacent die holes is 57.47 cm.

[0024] Preferably, the inner diameter of the ring die support frame is 659 cm, the outer diameter of the ring die support frame is 792 cm, and the width of the ring die support frame is 80 cm.

[0025] Preferably, the diameter of the plurality of die holes close to the inner side of the ring die support frame is 52 cm, and the diameter of the plurality of die holes close to the outer side of the ring die support frame is 46 cm.

[0026] Preferably, the plurality of die holes are divided by a limiting step, and the length of the plurality of die holes close to the outer side of the ring die support frame is 36.41 cm, and the length of the plurality of die holes close to the inner side of the ring die support frame is 30 cm.

[0027] Preferably, the length of the plurality of molded long sleeves is 110 cm, and the length of the first flange is 5 cm.

[0028] Preferably, the length of the plurality of forming seats is 28.45 cm, and the length of the second barrel end is 22.1 cm.

[0029] Beneficial effects of the utility model:

[0030] The ring die assembly of the straw pelletizer provided by the utility model adopts an easily replaceable forming seat installed at the inlet of the die hole, which improves the replacement efficiency of the worn parts, greatly reduces the replacement cost of the worn parts, and improves the overall production efficiency of the pelletizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the ring die assembly of the straw pelletizing machine described in the utility model.

[0032] Figure 2 It is a structural schematic diagram of the ring die support frame described in the utility model.

[0033] Figure 3 It is a schematic cross-sectional structure diagram of the ring die support frame of the utility model.

[0034] Figure 4 It is a schematic diagram of the longitudinal section structure of the ring mold support frame described in the utility model.

[0035] Figure 5 It is a structural schematic diagram of the molding long sleeve described in the utility model.

[0036] Figure 6 It is a schematic diagram of the dimensions of the molding long sleeve described in the utility model.

[0037] Figure 7 It is a structural schematic diagram of the forming seat of the utility model.

[0038] Figure 8 It is a schematic diagram of the rear view dimensions of the forming seat described in the utility model.

[0039] Fig. 9 It is a schematic diagram of the top view dimensions of the forming seat described in the utility model. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0041] like Figure 1 , Figure 2 As shown, the utility model provides a ring die assembly of a straw pelletizing machine, comprising:

[0042] A ring die support frame 110 , a plurality of die holes 111 , a plurality of molding seats 120 and a plurality of molding long sleeves 130 .

[0043] The ring die support frame 110 is an annular structure and is fixed on the power input shaft. The multiple die holes 111 are evenly distributed in the circumference of the ring die support frame 110, and the multiple die holes 111 are provided with limiting steps 112, so that the inner diameters of the multiple die holes 111 close to the inner side are larger than the inner diameters close to the outer side; one ends of the multiple forming sleeves 130 are respectively and one-to-one engaged with the limiting steps 112, and the other ends extend to the outside of the ring die support frame 110; one ends of the multiple forming seats 120 are respectively and one-to-one arranged in the multiple die holes 111 and abut against one ends of the multiple forming sleeves 130, and the other ends are engaged with the inner side of the ring die support frame 110, and the die holes 111, the forming sleeves 130 and the forming seats 120 are matched to ensure the best straw particle forming effect.

[0044] In this embodiment, a base plate 141 is fixed on the power input shaft, and an annular lower pressure cover 142 is arranged on the upper part of the base plate. The ring die support frame 110 is fixed to the lower pressure cover 142 by screws, and a accommodating cavity is formed between the lower pressure cover 142 and the base plate 141, and a pressure roller assembly is arranged in the accommodating cavity. The ring die support frame 110 and the pressure roller assembly are arranged in the same plane for pressing straw particles into the die hole 111 of the ring die support frame 110.

[0045] The number of the plurality of mold holes 111 , the plurality of molding long sleeves 130 and the plurality of molding seats 120 are the same and correspond one to one. In the present embodiment, the number of the mold holes 111 is 36.

[0046] like Figure 3 , Figure 4 As shown, the inner diameter of the ring die support frame 110 is 659 cm, the outer diameter of the ring die support frame 110 is 792 cm, the width of the ring die support frame 110 is 80 cm, the diameter of the multiple die holes 111 close to the inner side of the ring die support frame 110 is 52 cm, the diameter of the multiple die holes 111 close to the outer side of the ring die support frame 110 is 46 cm, and the length of the multiple die holes 111 close to the outer side of the ring die support frame 110 is 36.41 cm, and the length of the multiple die holes close to the inner side of the ring die support frame is 30 cm. The arc interval between the central axes of two adjacent die holes 111 is 10°, and the distance between the central axes of two adjacent die holes 111 is 57.47 cm.

[0047] like Figure 5As shown, the molding long sleeve 130 includes a first barrel end 131 and a first flange 132. One end of the first barrel end 131 is arranged in the die hole 111, and the other end extends to the outside of the ring die support frame 110; the first flange 132 is integrally arranged at one end of the first barrel end 131, and the first flange 132 is engaged on the limiting step 112. The first barrel end 131 is interference fit with the outer end of the die hole 111 close to the ring die support frame 110, and the outer diameter of the first flange 132 is 52 cm.

[0048] like Figure 6 As shown, the total length of the multiple molding long sleeves 130 is 110 cm, the total inner diameter is 36 cm, the outer diameter of the first barrel end 131 is 46 cm, the length of the first flange 132 is 5 cm, and the structural parameters of the molding long sleeve 130 are set to ensure that the friction force on the material is moderate, the extrusion effect is optimal, and the density and strength of the molded particles are optimized.

[0049] like Figure 7 As shown, the molding seat 120 includes a second barrel end 121 and a second flange 122, and the second barrel end 121 is arranged in the die hole 111; the second flange 122 is integrally arranged at one end of the second barrel end 121, and the second flange 122 is clamped on the inner side of the ring die support frame 110;

[0050] The second barrel end 121 is interference fit with the die hole 111 , the other end of the second barrel end 121 abuts against the first flange 132 , and the outer diameter of the second barrel end is 52 cm.

[0051] like Figure 8 , Fig. 9 As shown, the length of the multiple molding seats 120 is 28.45 cm, the length of the second barrel end 121 is 22.1 cm, the inner side of the multiple molding seats 120 is trapezoidal, and the inner diameter of one end close to the second flange 122 is 46.98 cm, and the diameter of the other end is 36 cm. The structural parameter setting of the molding seat 120 ensures that the material enters the molding seat 120 through the optimal mold hole entrance, and after the preliminary shaping of the particles is completed within the effective length of the molding seat 120, it enters the molding sleeve 130 to enhance its molding density and strength.

[0052] The working process of the pressure roller assembly and the ring die assembly described in the utility model is:

[0053] The rotation of the power input shaft 300 drives the bottom plate 141 to rotate, and then drives the ring die support frame 110 to rotate. Due to the friction between the ring die support frame 110, the straw and the pressure roller assembly, the straw in the pelletizer cavity is continuously pressed into the forming seat 120 and the forming long sleeve 130. Under the continuous squeezing action of the pressure roller assembly and the ring die support frame 110, the straw is finally squeezed and formed, and the formed particles are squeezed out from the outer end of the forming long sleeve 130. Because the forming seat 120 in the ring die support frame 110 is close to the pressure roller assembly, it is under great pressure and is very easy to wear. The forming seat 120 can be easily replaced by a separate design, avoiding frequent replacement of the forming long sleeve 130, thereby reducing maintenance costs and improving production efficiency.

[0054] The ring die assembly of the straw pelletizer provided by the utility model adopts an easily replaceable forming seat installed at the inlet of the die hole, which improves the replacement efficiency of the worn parts, greatly reduces the replacement cost of the worn parts, and improves the overall production efficiency of the pelletizer.

[0055] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A ring die assembly for a straw pelletizing machine, characterized in that: include: The ring die support frame has a ring structure and is fixed on the power input shaft; as well as A plurality of die holes are evenly arranged in the circumference of the ring die support frame, and limited steps are arranged inside the plurality of die holes; A plurality of long forming sleeves, one end of which is respectively engaged with the limiting step in a one-to-one correspondence, and the other end of which extends out of the outer side of the ring die support frame; A plurality of forming seats, one end of which is respectively pressed against one end of the plurality of forming long sleeves, and the other end is clamped on the inner side of the ring die support frame; Wherein, the diameter of the limiting step and the diameter of one end of the plurality of formed long sleeves are both 52 cm.

2. The ring die assembly of the straw pelletizer according to claim 1, characterized in that: Also includes: A base plate fixed on the power input shaft; A lower pressure cover, which is annular and fixed to the bottom plate, so that the lower pressure cover and the bottom plate form a receiving cavity; Wherein, the ring die support frame is arranged on the lower pressure cover, and a pressure roller assembly is arranged in the accommodating cavity.

3. The ring die assembly of the straw pelletizing machine according to claim 2, characterized in that: The plurality of molding long sleeves all include: A first barrel end, one end of which is disposed in the plurality of die holes and the other end of which extends outwardly of the ring die support frame; A first flange, which is integrally provided at one end of the first barrel end, and the first flange is engaged with the limiting step; The first barrel end is interference fit with one end of the outer side of the plurality of die holes close to the ring die support frame, and the outer diameter of the first flange is 52 cm.

4. The ring die assembly of the straw pelletizing machine according to claim 3, characterized in that: The plurality of forming seats include: a second barrel end disposed within the plurality of die holes; A second flange, which is integrally provided at one end of the second barrel end, and the second flange is engaged with the inner side of the ring die support frame; The second barrel end is interference fit with a plurality of die holes, and the other end of the second barrel end abuts against the first flange, and the outer diameter of the second barrel end is 52 cm.

5. The ring die assembly of the straw pelletizer according to claim 4, characterized in that: The arc angle between the center axes of two adjacent die holes is 10°, and the distance between the center axes of two adjacent die holes is 57.47 cm.

6. The ring die assembly of the straw pelletizing machine according to claim 5, characterized in that: The inner diameter of the ring die support frame is 659 cm, the outer diameter of the ring die support frame is 792 cm, and the width of the ring die support frame is 80 cm.

7. The ring die assembly of the straw pelletizer according to claim 6, characterized in that: The diameter of the multiple die holes close to the inner side of the ring die support frame is 52 cm, and the diameter of the multiple die holes close to the outer side of the ring die support frame is 46 cm.

8. The ring die assembly of the straw pelletizing machine according to claim 7, characterized in that: The plurality of die holes are divided by the limiting step, the length of the plurality of die holes close to the outer side of the ring die support frame is 36.41 cm, and the length of the plurality of die holes close to the inner side of the ring die support frame is 30 cm.

9. The ring die assembly of the straw pelletizing machine according to claim 8, characterized in that: The length of the plurality of molded long sleeves is 110 cm, and the length of the first flange is 5 cm.

10. The ring die assembly of the straw pelletizing machine according to claim 9, characterized in that: The length of the plurality of forming seats is 28.45 cm, and the length of the second barrel end is 22.1 cm.

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