CN214239444U - Mold for pencil molding - Google Patents
Mold for pencil molding Download PDFInfo
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- CN214239444U CN214239444U CN202022685065.8U CN202022685065U CN214239444U CN 214239444 U CN214239444 U CN 214239444U CN 202022685065 U CN202022685065 U CN 202022685065U CN 214239444 U CN214239444 U CN 214239444U
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- pencil
- taper sleeve
- sleeve
- holder
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Abstract
The utility model belongs to the technical field of crowded mould technique altogether and specifically relates to a mould is used in pencil shaping. The pencil core taper sleeve comprises a pencil core taper sleeve provided with two conical material-separating and flow-stabilizing sections, and an inlet sleeve plate, a pencil rod taper sleeve, a pencil skin taper sleeve and an outlet sleeve plate which are sequentially connected, wherein one end of the pencil core taper sleeve sequentially penetrates through the interior of the pencil rod taper sleeve and the interior of the pencil skin taper sleeve and extends into an outlet cavity of the outlet sleeve plate. The utility model discloses a design that two sections of conical branch material stationary flow sections are carried out to pencil pole material, can make the pencil pole material that gets into the mould from one side evenly distribute in the material runner of pencil pole, avoided effectively because of the easy off-centre of pencil and the incomplete problem of extrusion of pencil pole that the material feed side pressure of pencil pole is great leads to; through the design of using the pen holder runner stationary flow section and the extension of refill feeding cavity to the export lagging, can effectively avoid the extrusion pressure of pen-holder material to the refill when the pencil coextrusion molding, effectively solve the easy cracked problem of refill.
Description
Technical Field
The utility model belongs to the technical field of crowded mould technique altogether and specifically relates to a mould is used in pencil shaping.
Background
The traditional wooden pencil rod is mainly prepared from natural wood resources, which is unfavorable for ecological environment protection, and meanwhile, the traditional wooden pencil rod has the problems of large pollution, intensive labor, low production efficiency and the like in the processing process. Therefore, the development of new environment-friendly pencil holder is an urgent technical demand for the sustainable development of the pencil industry.
Patent 201720643049.8 discloses a plastics pencil forming die, this mould of characterized by includes outer barrel and mould core, and the mould core is installed in the concentric cylinder shoulder hole of outer barrel, and the mould core includes lead core taper sleeve, pole material taper sleeve, cladding feeding ring and cladding taper sleeve, however this mould design structure is heavy, loaded down with trivial details, and pencil pole material and pencil table cladding are all directly converged through the runner clearance simultaneously, cause the material maldistribution in runner clearance to lead to the pencil disqualification rate of extruding to be higher easily.
Patent 201821388259.8 discloses a light and handy type plastics pencil extrusion tooling, this mould of characterized by is including taking the import seat of lead core feed inlet, the pole material taper sleeve of setting at the import seat lower extreme, set up cladding material taper sleeve and the export seat of setting at the cladding material taper sleeve lower extreme under the pole material taper sleeve, and set up the material transition chamber on pole material clearance and cladding material clearance, the inhomogeneous phenomenon of part has been avoided extruding out to the material effectively, nevertheless when the great cladding of lead core of pen-holder material pressure appears easily when coextrusion molding, lead to the easy phenomenon of lead core appearance fracture, influence the stability and the continuity of product production.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an object of the present invention is to provide a mold for pencil molding.
The purpose of the utility model is realized through the following technical scheme:
a mold for pencil molding comprises an inlet sleeve plate, a pencil rod taper sleeve, a pencil skin taper sleeve and an outlet sleeve plate which are sequentially connected, wherein a pencil lead feeding port is formed in the inlet sleeve plate, an outlet cavity is formed in the outlet sleeve plate, and an outlet fixed mold core is arranged at an opening of the outlet cavity in the outlet sleeve plate;
one end of the inlet sleeve plate is connected with a pencil lead taper sleeve, one end of the pencil lead taper sleeve sequentially penetrates through the interior of the pencil rod taper sleeve and the interior of the pencil skin taper sleeve and extends into the outlet cavity, a pencil lead feeding cavity is arranged in the pencil lead taper sleeve, and two ends of the pencil lead feeding cavity are respectively communicated with the outlet cavity and the pencil lead feeding hole;
the pencil surface skin taper sleeve is provided with a pencil surface skin feeding hole and a pencil surface skin feeding cavity, a surface skin material flow channel gap is formed between the pencil surface skin taper sleeve and the pencil rod taper sleeve, and the pencil surface skin feeding hole, the pencil surface skin feeding cavity and the surface skin material flow channel gap are sequentially communicated with the outlet cavity;
the pencil holder is characterized in that a pencil holder feeding port is formed in the pencil holder taper sleeve, a pencil holder material flow channel gap is formed between the pencil core taper sleeve and the pencil holder taper sleeve, the pencil holder material flow channel gap is communicated with the outlet cavity, a pencil holder material shunt channel is further arranged inside the pencil core taper sleeve, the pencil holder material shunt channel comprises two pencil holder material distribution flow stabilizing sections A and two pencil holder material distribution flow stabilizing sections A, the two pencil holder material distribution flow stabilizing sections A are respectively communicated with the pencil holder feeding port, one of the pencil holder material distribution flow stabilizing sections A is divided into two pencil holder material distribution flow stabilizing sections B, the other pencil holder material distribution flow stabilizing section A is divided into two pencil holder material distribution flow stabilizing sections B, and the four pencil holder material distribution flow stabilizing sections B are respectively communicated with the pencil holder material flow channel gap.
Preferably, the two pencil holder material distributing and flow stabilizing sections A are uniformly distributed in a conical shape in the pencil lead taper sleeve.
Preferably, the four pencil holder material distributing and flow stabilizing sections B are uniformly distributed in a conical shape in the pencil lead taper sleeve.
Preferably, the inlet sleeve plate is in threaded connection with the pencil lead taper sleeve.
Preferably, the outlet sleeve plate is connected with the pencil skin taper sleeve through a bolt.
Preferably, the outlet sleeve plate, the pencil skin taper sleeve and the pencil rod taper sleeve are connected through a screw rod.
Preferably, the plane included angle between the central line projection line of the pencil shaft feeding hole and the central line projection line of the pencil lead feeding hole is 45-90 degrees.
The utility model discloses an advantage does with positive effect:
the utility model discloses pencil mould structure is light and handy, simple, and the epidermis is even and stable to the material cladding of pen-holder and pen-holder to the refill, and the phenomenon of splitting appears in the difficult coextrusion cladding of pencil refill. The method specifically comprises the following steps:
1) through the design of two sections of conical material distribution and flow stabilization sections on the pencil rod material, the pencil rod material entering the die from one side can be uniformly distributed in the pencil rod material flow channel, and the problems that the pencil is easy to be eccentric and the pencil rod is not extruded completely due to the fact that the feeding side pressure of the pencil rod material is large are effectively avoided;
2) the utility model discloses an in design and the refill feeding chamber that use pen-holder runner stationary flow section extended to the export lagging, can effectively avoid the pen-holder material to the extrusion pressure of refill when pencil coextrusion shaping, effectively solve the easy cracked problem of refill.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic sectional view taken along the line a-a in fig. 1.
In the figure: 1-an inlet sleeve plate, 2-a pencil lead taper sleeve, 3-a pencil lead taper sleeve, 4-a pencil skin taper sleeve, 5-an outlet sleeve plate, 6-an outlet fixed mold core, 7-a pencil lead feeding port, 8-a pencil lead feeding cavity, 9-a pencil lead material flow passage gap, 10-a pencil lead feeding port, 11-a pencil lead material distributing steady flow section A and 111-a pencil lead material distributing steady flow section B, 112-pencil rod material distributing steady flow section B, 12-pencil rod material distributing steady flow section A, 121-pencil rod material distributing steady flow section B, 122-pencil rod material distributing steady flow section B, 13-surface material flow channel gap, 14-pencil surface feed inlet, 15-pencil surface feed cavity, 16-thread, 17-screw, 18-outlet cavity and 19-bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1-2.
A mold for forming a pencil comprises an inlet sleeve plate 1, a pencil rod taper sleeve 3, a pencil skin taper sleeve 4 and an outlet sleeve plate 5 which are sequentially connected, wherein a pencil lead feeding port 7 is formed in the inlet sleeve plate 1, an outlet cavity 18 is formed in the outlet sleeve plate 5, an outlet fixed mold core 6 is arranged at an opening of the outlet cavity 18 in the outlet sleeve plate 5, the inlet sleeve plate 1 and the outlet sleeve plate 5 are externally connected and arranged by adopting the prior art, and the internal shape of the outlet fixed mold core 6 adopts the prior art;
one end of the inlet sleeve plate 1 is connected with a pencil lead taper sleeve 2, one end of the pencil lead taper sleeve 2 sequentially penetrates through the interior of the pencil rod taper sleeve 3 and the interior of the pencil skin taper sleeve 4 and extends into the outlet cavity 18, a pencil lead feeding cavity 8 is arranged in the pencil lead taper sleeve 2, and two ends of the pencil lead feeding cavity 8 are respectively communicated with the outlet cavity 18 and the pencil lead feeding hole 7;
the pencil skin taper sleeve 4 is provided with a pencil skin feeding hole 14 and a pencil skin feeding cavity 15, a skin material flow channel gap 13 is formed between the pencil skin taper sleeve 4 and the pencil holder taper sleeve 3, and the pencil skin feeding hole 14, the pencil skin feeding cavity 15, the skin material flow channel gap 13 and the outlet cavity 18 are sequentially communicated;
the pencil holder taper sleeve 3 is provided with a pencil holder feeding port 10, a pencil holder material flow channel gap 9 is formed between the pencil core taper sleeve 2 and the pencil holder taper sleeve 3, the pencil holder material flow channel gap 9 is communicated with the outlet cavity 18, a pencil holder material shunt channel is further arranged inside the pencil core taper sleeve 2 and comprises two pencil holder material distribution steady flow sections A11 and 12, the two pencil holder material distribution steady flow sections A11 and 12 are respectively communicated with the pencil holder feeding port 10, one pencil holder material distribution steady flow section A11 is divided into two pencil holder material distribution steady flow sections B111 and B112, the other pencil holder material distribution steady flow section A12 is divided into two pencil holder material distribution steady flow sections B121 and B122, and the four pencil holder material distribution steady flow sections B111, B112, 121 and B122 are respectively communicated with the pencil holder material flow channel gap 9.
Specifically, the two pencil holder material separating and flow stabilizing sections A11 and 12 are uniformly distributed in a conical shape in the pencil lead taper sleeve 2.
Specifically, the four pencil shaft material separating and flow stabilizing sections B111, 112, 121, and 122 are uniformly distributed in a conical shape inside the pencil lead cone sleeve 2.
Specifically, the inlet sleeve plate 1 is connected with the pencil lead taper sleeve 2 through the threads 16, so that the pencil lead taper sleeve is easy to disassemble and assemble.
Specifically, the outlet sleeve plate 5 and the pencil skin taper sleeve 4 are connected by a bolt 19.
Specifically, the outlet sleeve plate 5, the pencil skin taper sleeve 4 and the pencil holder taper sleeve 3 are connected through a screw 17.
Specifically, the plane included angle between the central line projection line of the pencil shaft feeding hole 10 and the central line projection line of the pencil lead feeding hole 7 is 45-90 degrees, and more progressively can be 60-90 degrees.
The working principle is as follows:
through the design of two sections of conical material distribution and flow stabilization sections on the pencil rod material, the pencil rod material entering the die from one side can be uniformly distributed in the gap of the pencil rod material flow channel, and the problems of easy eccentricity of a pencil and incomplete extrusion of the pencil rod due to large side pressure of the pencil rod material feeding side are effectively avoided; through the design of using the pen holder runner stationary flow section and the extension of refill feeding cavity to the export lagging, can effectively avoid the extrusion pressure of pen-holder material to the refill when the pencil coextrusion molding, effectively solve the easy cracked problem of refill.
Claims (7)
1. A mold for pencil molding is characterized in that: the pencil comprises an inlet sleeve plate (1), a pencil holder taper sleeve (3), a pencil skin taper sleeve (4) and an outlet sleeve plate (5) which are sequentially connected, wherein a pencil lead feeding port (7) is formed in the inlet sleeve plate (1), an outlet cavity (18) is formed in the outlet sleeve plate (5), and an outlet fixed core (6) is arranged at an opening of the outlet cavity (18) in the outlet sleeve plate (5);
one end of the inlet sleeve plate (1) is connected with a pencil lead taper sleeve (2), one end of the pencil lead taper sleeve (2) sequentially penetrates through the interior of the pencil rod taper sleeve (3) and the interior of the pencil skin taper sleeve (4) and extends into the outlet cavity (18), a pencil lead feeding cavity (8) is arranged in the pencil lead taper sleeve (2), and two ends of the pencil lead feeding cavity (8) are respectively communicated with the outlet cavity (18) and the pencil lead feeding hole (7);
the pencil surface taper sleeve (4) is provided with a pencil surface feeding port (14) and a pencil surface feeding cavity (15), a surface material flow channel gap (13) is formed between the pencil surface taper sleeve (4) and the pencil holder taper sleeve (3), and the pencil surface feeding port (14), the pencil surface feeding cavity (15), the surface material flow channel gap (13) and the outlet cavity (18) are sequentially communicated;
the pencil holder is characterized in that a pencil holder feeding port (10) is formed in the pencil holder taper sleeve (3), a pencil holder material flow channel gap (9) is formed between the pencil holder taper sleeve (3) and the pencil holder taper sleeve (2), the pencil holder material flow channel gap (9) is communicated with the outlet cavity (18), a pencil holder material sub-flow channel is further arranged inside the pencil holder taper sleeve (2), the pencil holder material sub-flow channel comprises two pencil holder material distribution flow sections A (11, 12), the two pencil holder material distribution flow sections A (11, 12) are respectively communicated with the pencil holder feeding port (10), one pencil holder material distribution flow section A (11) is divided into two pencil holder material distribution flow sections B (111, 112), and the other pencil holder material distribution flow section A (12) is divided into two pencil holder material distribution flow sections B (121, 122), the four pencil rod material distributing and stabilizing sections B (111, 112, 121 and 122) are respectively communicated with the pencil rod material flow passage gaps (9).
2. The mold for pencil molding as defined in claim 1, wherein: the two pencil holder material distributing and flow stabilizing sections A (11, 12) are uniformly distributed in a conical shape in the pencil core taper sleeve (2).
3. The mold for pencil molding as defined in any one of claims 1 and 2, wherein: the four pencil rod material distributing and stabilizing sections B (111, 112, 121 and 122) are uniformly distributed in a conical shape in the pencil lead cone sleeve (2).
4. The mold for pencil molding as defined in claim 1, wherein: the inlet sleeve plate (1) is connected with the pencil lead taper sleeve (2) through threads (16).
5. The mold for pencil molding as defined in claim 1, wherein: the outlet sleeve plate (5) is connected with the pencil skin taper sleeve (4) through a bolt (19).
6. The mold for pencil molding as defined in claim 1, wherein: the outlet sleeve plate (5) and the pencil skin taper sleeve (4) are connected with the pencil holder taper sleeve (3) through a screw rod (17).
7. The mold for pencil molding as defined in claim 1, wherein: the plane included angle of the central line projection line of the pencil rod feeding hole (10) and the central line projection line of the pencil lead feeding hole (7) is 45-90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022685065.8U CN214239444U (en) | 2020-11-19 | 2020-11-19 | Mold for pencil molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022685065.8U CN214239444U (en) | 2020-11-19 | 2020-11-19 | Mold for pencil molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214239444U true CN214239444U (en) | 2021-09-21 |
Family
ID=77733177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022685065.8U Active CN214239444U (en) | 2020-11-19 | 2020-11-19 | Mold for pencil molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214239444U (en) |
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2020
- 2020-11-19 CN CN202022685065.8U patent/CN214239444U/en active Active
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