CN211757617U

CN211757617U - Roller of tablet press

Info

Publication number: CN211757617U
Application number: CN202020287718.4U
Authority: CN
Inventors: 李少辉
Original assignee: Hengyang Yuchengsheng Machinery Co ltd
Current assignee: Hengyang Yuchengsheng Machinery Co ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-10-27
Anticipated expiration: 2030-03-10

Abstract

The utility model provides a tablet press roll, relates to roll technical field, and it includes the dabber, the centre bore has been seted up to the right-hand member face of dabber, the one end of centre bore is followed the axial of dabber and is extended left and one section locating hole of coaxial coupling, the internal diameter of locating hole is less than the internal diameter of centre bore, and an inner spray tube that is used for letting in the coolant liquid wears to locate the centre bore and inserts in the locating hole, the diameter of inner spray tube and the internal diameter size phase-match of locating hole, set up the inlet channel of intercommunication locating hole and the flowing back passageway of intercommunication centre bore on the outer wall of dabber, center on the outer wall of dabber is equipped with the liquid guide groove that is used for intercommunication inlet channel and flowing back passageway, the. The utility model discloses also can possess better cooling effect when possessing good intensity.

Description

Roller of tablet press

Technical Field

The utility model belongs to the technical field of roll structure technique and specifically relates to indicate a tablet press roll.

Background

Rolls are the primary working components and tools on a rolling mill that produce continuous plastic deformation of metal. The roller comprises a plurality of types, the roller of the existing tablet press is generally a hollow roller, wherein a hollow drum part is a cooling medium flowing area, if the wall thickness of the hollow drum part is too thick, the cooling effect is poor, and if the wall thickness is too thin, the roller is easy to break in the using process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tablet press roll also can possess better cooling effect when possessing good intensity.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a tablet press roll, includes the dabber, the centre bore has been seted up to the right-hand member face of dabber, the one end of centre bore is followed the axial of dabber and is extended and one section locating hole of coaxial coupling to left, the internal diameter of locating hole is less than the internal diameter of centre bore, and an interior spray tube that is used for letting in the coolant liquid wears to locate the centre bore and inserts in the locating hole, the diameter of interior spray tube and the internal diameter size phase-match of locating hole, set up the inlet channel of intercommunication locating hole and the flowing back passageway of intercommunication centre bore on the outer wall of dabber, center on the outer wall of dabber is equipped with the liquid guide groove that is used for intercommunication inlet channel and flowing back passageway, the.

Preferably, the liquid guide groove is spirally arranged on the outer wall surface of the mandrel, and the liquid inlet channel and the liquid discharge channel are respectively communicated with the left end and the right end of the liquid guide groove.

Or preferably, the liquid guide groove comprises a plurality of annular grooves which are arranged in parallel, notches for communicating the annular grooves and the adjacent annular grooves are formed in the wall surface of the groove between the adjacent annular grooves, the liquid inlet channel is communicated with the annular groove at the leftmost end of the mandrel, and the liquid discharge channel is communicated with the annular groove at the rightmost end of the mandrel.

Each notch is sequentially arranged in a staggered manner in a step shape along the axial direction of the mandrel, and a limiting barrier strip for blocking cooling liquid so as to enable the cooling liquid to flow into the next annular groove after flowing for a circle around the annular groove is arranged in the annular groove close to the notch.

Preferably, the outer sleeve and the mandrel are in interference fit, and the two end seams of the outer sleeve and the mandrel are connected through welding.

More preferably, the outer sleeve is made of a hard material; or the outer sleeve is made of 38CrMoAl with nitrided surface.

The utility model discloses a theory of operation is: the cooling liquid is introduced into the positioning hole through the inward spray pipe, then flows into the liquid guide groove on the outer wall surface of the mandrel from the liquid inlet channel, flows around the mandrel through the liquid guide groove, then flows into the liquid drainage channel, finally enters the central hole communicated with the liquid drainage channel and is discharged from the orifice at the right end of the central hole.

The central hole and the positioning hole are arranged in the mandrel to guide cooling liquid to enter and discharge, so that the hollow degree of the mandrel can be reduced to the greatest extent, the mandrel is ensured to have good strength, and the mandrel is not easy to break; the cooling liquid can enter the liquid guide groove on the outer wall surface of the mandrel through the liquid inlet channel, so the cooling liquid can effectively play a cooling role, and the outer sleeve covered on the liquid guide groove is thinner than the mandrel, so the outer sleeve can be made of a material with higher strength, the integral strength of the roller is improved, and the mandrel can be made of a material with better toughness.

Drawings

Fig. 1 is a schematic cross-sectional view of the overall structure in embodiment 1 of the present invention;

FIG. 2 is a perspective view showing the construction of a mandrel in example 1;

fig. 3 is a schematic cross-sectional view of the overall structure in embodiment 2 of the present invention;

fig. 4 is a schematic structural view of a mandrel in example 2.

The reference signs are:

1-mandrel 2-central hole 3-positioning hole

4-inner spray pipe 5-liquid inlet channel 6-liquid discharge channel

7-liquid guide groove 7 a-annular groove 7 b-notch

7 c-a limit stop strip 8-an outer sleeve.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

It should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, in the present disclosure, unless explicitly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1-2, a roll of a tablet press comprises a mandrel 1, a central hole 2 is formed in the right end face of the mandrel 1, one end of the central hole 2 extends leftwards along the axial direction of the mandrel 1 and is coaxially connected with a section of positioning hole 3, the inner diameter of the positioning hole 3 is smaller than that of the central hole 2, an inner spray pipe 4 for introducing cooling liquid penetrates through the central hole 2 and is inserted into the positioning hole 3, the diameter of the inner spray pipe 4 is matched with the inner diameter of the positioning hole 3, a liquid inlet channel 5 communicated with the positioning hole 3 and a liquid discharge channel 6 communicated with the central hole 2 are formed in the outer wall face of the mandrel 1, a liquid guide groove 7 for communicating the liquid inlet channel 5 with the liquid discharge channel 6 is formed in the outer wall face of the mandrel 1, and an outer sleeve.

The tablet press roller provided by the above embodiment can make the cooling liquid enter the positioning hole 3 by introducing the cooling liquid into the inner spray pipe 4, then flow into the liquid guide groove 7 on the outer wall surface of the mandrel 1 from the liquid inlet channel 5, then flow around the mandrel 1 through the liquid guide groove 7, then flow into the liquid discharge channel 6, finally enter the central hole 2 communicated with the liquid discharge channel 6 and discharge from the right end orifice of the central hole 2, and the flow path of the cooling liquid is shown as the arrow direction in fig. 1.

The central hole 2 and the positioning hole 3 are arranged in the mandrel 1 to guide cooling liquid to enter and discharge, so that the hollow degree of the mandrel 1 can be reduced to the greatest extent, the mandrel 1 is ensured to have good strength, and the mandrel is not easy to break; and because the cooling liquid can enter the liquid guide groove 7 on the outer wall surface of the mandrel 1 through the liquid inlet channel 5, the cooling liquid can effectively play a cooling role, and the outer sleeve 8 which is covered on the liquid guide groove 7 is thinner than the mandrel 1, so the outer sleeve can be made of a material with higher strength, the integral strength of the roller is improved, the mandrel 1 can be made of a material with better toughness, and moreover, the mandrel and the outer sleeve can be obtained by machining by adopting the structure without casting, so the production period is effectively shortened.

It should be noted that, as will be understood by those skilled in the art, in order to ensure that the cooling liquid enters the inner nozzle 4 and then smoothly enters the liquid inlet channel 5, the left end of the inner nozzle 4 does not directly plug into the bottom of the positioning hole 3, but keeps a certain distance from the bottom of the positioning hole 3, and one end of the liquid inlet channel 5 can be communicated with the distance, so that the cooling liquid can enter the distance between the bottom of the positioning hole 3 and the inner nozzle 4 from the left end of the inner nozzle 4, and then smoothly flows into the liquid inlet channel 5, and since the diameter of the inner nozzle 4 matches the inner diameter of the positioning hole 3, there is no need to worry about that new cooling liquid directly flows back into the central hole 2 when entering the positioning hole 3, and the used cooling liquid in the central hole 2 cannot easily flow back into the positioning hole 3.

Preferably, the liquid guiding groove 7 is spirally arranged on the outer wall surface of the mandrel 1, the liquid inlet channel 5 and the liquid discharging channel 6 are respectively communicated with the left end and the right end of the liquid guiding groove 7, and the liquid guiding groove 7 of the structure enables the cooling liquid to flow on the outer wall surface of the mandrel 1 in a spiral route, so that the roller is sufficiently cooled.

More preferably, the outer sleeve 8 and the mandrel 1 are in interference fit and the two end seams are connected by welding, so as to ensure good sealing performance and connection firmness between the outer sleeve 8 and the mandrel 1.

In addition, the outer sleeve 8 in the embodiment can be made of hard material; alternatively, the outer jacket tube 8 can be made of 38CrMoAl which is surface nitrided.

Example 2

As shown in fig. 3-4, the difference between this embodiment and embodiment 1 is only that the liquid guiding groove 7 has a different structure, specifically, the liquid guiding groove 7 of this embodiment includes a plurality of annular grooves 7a arranged in parallel, the groove wall surface between adjacent annular grooves 7a is provided with a notch 7b for communicating the two, the liquid inlet channel 5 is communicated with the annular groove 7a at the leftmost end of the mandrel 1, and the liquid outlet channel 6 is communicated with the annular groove 7a at the rightmost end of the mandrel 1.

Furthermore, the notches 7b are sequentially arranged in a staggered manner in a step shape along the axial direction of the mandrel 1, and a limiting barrier strip 7c for blocking the cooling liquid so as to promote the cooling liquid to flow into the next annular groove 7a after flowing for one circle around the annular groove 7a is arranged in the annular groove 7a close to the notches 7 b.

The above configuration guides the coolant entering the liquid guide groove 7 so that the coolant can flow on the outer wall surface of the mandrel 1 sufficiently as well, and the liquid guide groove 7 of the present embodiment is simpler to process than the spiral liquid guide groove 7 of embodiment 1.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

In order to make it easier for those skilled in the art to understand the improvement of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and in order to clarify, some other elements have been omitted from this document, those skilled in the art should recognize that these omitted elements may also constitute the content of the present invention.

Claims

1. A roll of a tablet press comprising a mandrel (1), characterized in that: a central hole (2) is arranged on the right end face of the mandrel (1), one end of the central hole (2) extends leftwards along the axial direction of the mandrel (1) and is coaxially connected with a section of positioning hole (3), the inner diameter of the positioning hole (3) is smaller than that of the central hole (2), an inner spray pipe (4) for introducing cooling liquid penetrates through the central hole (2) and is inserted into the positioning hole (3), the diameter of the inner spray pipe (4) is matched with the inner diameter of the positioning hole (3), the outer wall surface of the mandrel (1) is provided with a liquid inlet channel (5) communicated with the positioning hole (3) and a liquid discharge channel (6) communicated with the central hole (2), a liquid guide groove (7) used for communicating the liquid inlet channel (5) and the liquid discharge channel (6) is arranged around the outer wall surface of the mandrel (1), the outer sleeve (8) used for sealing the liquid guide groove (7) is sleeved outside the mandrel (1).

2. The sheeter roller according to claim 1, wherein: liquid guide groove (7) are the heliciform and set up in the outer wall of dabber (1), inlet channel (5) and flowing back passageway (6) communicate the left end and the right-hand member of liquid guide groove (7) respectively.

3. The sheeter roller according to claim 1, wherein: liquid guide groove (7) include a plurality of parallel arrangement's ring channel (7 a), and breach (7 b) of intercommunication the two are seted up to the groove wall face between adjacent ring channel (7 a), liquid inlet channel (5) intercommunication dabber (1) go up ring channel (7 a) of leftmost end, drain passage (6) intercommunication dabber (1) go up ring channel (7 a) of rightmost end.

4. The sheeter roller according to claim 3, wherein: each notch (7 b) is sequentially arranged in a staggered manner in a step shape along the axial direction of the mandrel (1), and a limiting barrier strip (7 c) used for blocking cooling liquid so as to promote the cooling liquid to flow into the next annular groove (7 a) after flowing for a circle around the annular groove (7 a) is arranged in the annular groove (7 a) close to the notch (7 b).

5. The sheeter roller according to claim 2 or 4, wherein: the outer sleeve (8) is in interference fit with the mandrel (1), and joints at two ends of the outer sleeve and the mandrel are connected through welding.

6. The sheeter roller according to claim 5, wherein: the outer sleeve (8) is made of hard material; or the outer sleeve (8) is made of 38CrMoAl with nitrided surface.