Shaping device for eraser production

Abstract

The utility model discloses a shaping device for eraser production, which comprises a working table and a driving structure arranged on the working table, a shaping groove is arranged on the working table, and the free end of the driving structure is provided with an extrusion die used for matching with the shaping groove to shape eraser materials in a non-overflow mode. A forming groove is formed in the workbench, a hopper assembly used for evenly throwing eraser materials is installed on the workbench, anti-overflow grooves are formed in the four sides of the top of the forming groove, the extrusion die comprises a die carrier matched with the forming groove, the outer side of the die carrier is sleeved with a blocking coaming matched with the anti-overflow grooves, and a notch is formed in the outer wall of the die carrier. Eraser materials are extruded in a closed space formed among the shaping groove, the blocking coaming and the mold carrier, the eraser materials can be effectively prevented from overflowing in the extrusion stage, in addition, it is ensured that the materials are evenly fed into the shaping groove in a flat shape, and feeding uniformization is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of shaping devices, in particular to a shaping device for eraser production. Background Art

[0002] Eraser material can make eraser material fully dense in the forming process by extrusion molding, thereby improves the density and strength of eraser, increases its compression resistance and wear resistance, makes eraser more durable and effective.When eraser material is put into the die extrusion force, rubber material can fill the space of whole die groove, to reach required shape.However, due to the elasticity of rubber material and the effect of extrusion force, a part of rubber material can be squeezed out of die groove, forms overflow, thereby affects eraser material shaping effect. Utility Model Content

[0003] Summary of the invention At the deficiencies in the prior art, the purpose of this utility model is to provide a kind of eraser production and use shaping device, to solve the problem that the eraser material that proposes in the above-mentioned background technology easily overflows from the die groove inside when extrusion molding.

[0004] To achieve the above object, the utility model provides the following technical solutions: a shaping device for eraser production, comprising a workbench and a driving structure installed on the workbench, the workbench is provided with a shaping groove, the free end of the driving structure is provided with an extrusion die for matching the shaping groove with a non-overflow shaping eraser material, and the workbench is provided with a hopper assembly for evenly feeding the eraser material into the shaping groove;

[0005] Anti-overflow grooves are provided on the four sides of the top of the shaping groove. The extrusion mold includes a mold carrier adapted to the shaping groove. A sealing enclosure adapted to the anti-overflow groove is sleeved on the outer side of the mold carrier. A notch is provided on the outer wall of the mold carrier. An elastic structure is installed between the top wall of the notch and the sealing enclosure.

[0006] Preferably, the anti-overflow groove consists of an inner groove and an outer groove, and the depth of the outer groove is greater than the depth of the inner groove, and a magnetic sheet is embedded and installed on the bottom wall of the outer groove;

[0007] The blocking enclosure plate is composed of an enclosure plate sleeved on the outside of the mold carrier and a magnetic strip installed on the bottom of the enclosure plate.

[0008] Preferably, a long groove is provided on the workbench, and an electric threaded guide rail is installed inside the long groove for driving the hopper assembly to adjust the distance between the hopper assembly and the shaping groove.

[0009] Preferably, the hopper assembly is threadedly sleeved on a rigid support member on an electric threaded guide rail, a lowering frame is installed on the top of the rigid support member, and a feeding frame is installed on the top of the lowering frame.

[0010] Preferably, two gear rollers connected by tooth grooves are installed inside the feeding frame, and an oblique plate for guiding the rubber material into the middle of the two gear rollers is fixedly installed on the inner walls on both sides of the feeding frame. A servo motor for driving the gear rollers to rotate at a uniform speed is installed on the feeding frame.

[0011] Preferably, a guide roller for guiding the extruded rubber material to be discharged is installed on the lower sliding frame, and a leather strip is sleeved between the guide roller and one of the gear rollers.

[0012] Preferably, the length of the lower slide frame matches the width of the shaping groove, and the inclination of the lower slide frame is not less than 20°.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the utility model controls the extrusion die to extrude the eraser material inside the shaping groove, the blocking enclosure first contacts the bottom wall of the anti-overflow groove around the shaping groove, so as to cooperate with the die carrier to block the opening of the top surface of the shaping groove, so that the eraser material is extruded in the closed space formed between the shaping groove, the blocking enclosure and the die carrier, thereby effectively preventing the eraser material from overflowing during the extrusion stage.

[0015] 2. The utility model drives the hopper assembly to move left and right at a uniform speed through an electric threaded guide rail, thereby adjusting the position relationship between the discharge end of the lower slide frame and the shaping groove accordingly, increasing the range of material discharge and stacking, and thus improving the uniformity of feeding.

[0016] 3. The utility model controls the two gear rollers to rotate relative to each other, and squeezes the eraser material passing therethrough downward, thereby achieving uniform squeezing of the eraser material and eliminating possible uneven deformation or thickness difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the extrusion die of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the hopper assembly of the utility model;

[0020] Figure 4 It is a schematic diagram of the installation structure of the rigid support member and the lower sliding frame of the utility model.

[0021] In the figure: 1. workbench; 2. driving structure; 3. shaping groove; 301. anti-overflow groove; 4. extrusion die; 401. die carrier; 402. blocking plate; 4021. frame plate; 4022. magnetic strip; 403. notch; 404. elastic structure; 5. hopper assembly; 501. rigid support; 502. lower slide frame; 5021. guide roller; 5022. leather strip; 503. feeding frame; 5031. gear roller; 5032. italic plate; 5033. servo motor; 6. electric threaded guide rail. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] When the eraser material is put into the mold and extruded, the rubber material will fill the entire mold groove space under the action of the extrusion force to achieve the desired shape. However, due to the elasticity of the rubber material and the extrusion force, part of the rubber material will be squeezed out of the mold groove, forming overflow. Please refer to Figure 1-Figure 4 The utility model provides an embodiment that can prevent the eraser material from overflowing from the inside of the mold groove during the extrusion shaping stage, thereby affecting the shaping effect. The driving structure 2 is installed on the workbench 1, and the shaping groove 3 is opened on the workbench 1 for placing the eraser material to be squeezed and shaped. The extrusion die 4 is installed at the free end of the driving structure 2 to cooperate with the shaping groove 3 to shape the eraser material without overflow. The hopper assembly 5 is installed on the workbench 1 to evenly put the eraser material into the shaping groove 3. In actual application, the eraser material is put into the inside of the hopper assembly 5 for processing, so that the eraser material is discharged into the inside of the shaping groove 3 in a flat shape, thereby improving the uniform distribution of the squeezed material. Subsequently, the driving structure 2 and the extrusion die 4 are used to work downward to achieve the purpose of squeezing the eraser material, so that the eraser material is in a square block shape.

[0024] In order to reduce the probability of the eraser material overflowing when the internal extrusion molding of the molding groove 3 is performed, Figure 1 and Figure 2As shown, anti-overflow grooves 301 are provided on the four sides of the top of the shaping groove 3, and the anti-overflow groove 301 is composed of an inner groove and an outer groove, and the depth of the outer groove is greater than the depth of the inner groove, and a magnetic sheet is embedded in the bottom wall of the outer groove, and the extrusion mold 4 includes a mold carrier 401 adapted to the shaping groove 3, and the outer side of the mold carrier 401 is sleeved with a blocking panel 402 adapted to the anti-overflow groove 301, and the blocking panel 402 is composed of a frame plate 4021 sleeved on the outer side of the mold carrier 401 and a magnetic strip 4022 installed at the bottom of the frame plate 4021, and a notch 403 is provided on the outer wall of the mold carrier 401, and an elastic structure 404 is installed between the top wall of the notch 403 and the blocking panel 402, and the extrusion mold 4 is driven by the driving structure 2 to move downward to the inside of the shaping groove 3 for extrusion, and the eraser material passes through During the process, the blocking enclosure 402 first contacts the anti-overflow groove 301, and the magnetic strip 4022 in the blocking enclosure 402 and the magnetic sheet in the outer groove attract each other, thereby increasing the fit between the blocking enclosure 402 and the anti-overflow groove 301. At this time, the eraser material is inside the closed space formed by the shaping groove 3, the mold carrier 401 and the blocking enclosure 402. Thereafter, when the extrusion mold 4 continues to be controlled to extrude downward by the driving structure 2, the elastic structure 404 can be affected by the upward feedback force from the frame plate 4021, and its own length is correspondingly contracted, so that the mold carrier 401 squeezes the eraser material downward relative to the blocking enclosure 402, while the blocking enclosure 402 remains stationary and continues to be clamped in the anti-overflow groove 301, thereby effectively preventing the eraser material from overflowing during the extrusion stage.

[0025] like Figure 1 , Figure 3 and Figure 4 As shown, a long groove is provided on the workbench 1, and an electric threaded guide rail 6 is installed inside the long groove for driving the hopper assembly 5 to adjust the distance between it and the shaping groove 3. The hopper assembly 5 is threadedly sleeved on a rigid support member 501 on the electric threaded guide rail 6, and a sliding frame 502 is installed on the top of the rigid support member 501. The length of the sliding frame 502 matches the width of the shaping groove 3, so that when the hopper assembly 5 is driven by the electric threaded guide rail 6 to move to the position closest to the driving structure 2, the material discharged from the outlet end of the sliding frame 502 can reach the farther side of the shaping groove 3, thereby ensuring that the material is relatively evenly spread inside the shaping groove 3. The inclination of the sliding frame 502 is not less than 20° to reduce the resistance to material discharge, and a feeding frame 503 is installed on the top of the sliding frame 502. In actual application, by starting the electric threaded guide rail 6, the hopper assembly 5 is driven to move left and right at a constant speed, thereby adjusting the position relationship between the discharge end of the lower slide frame 502 and the shaping groove 3 accordingly, increasing the range of material discharge and stacking, and thus improving the uniformity of feeding.

[0026] like Figure 3 and Figure 4As shown, the inside of the feeding frame 503 is equipped with two gear rollers 5031 connected by tooth groove coordination, the inner wall on both sides of the feeding frame 503 is fixedly installed with italic plates 5032 used to guide the rubber material to be introduced into the middle of the two gear rollers 5031, the feeding frame 503 is equipped with a servo motor 5033 used to drive the gear rollers 5031 to rotate at a uniform speed, the servo motor 5033 is utilized to drive the two gear rollers 5031 to rotate relative to each other, so that the eraser material can be squeezed downward along the gap between the two gear rollers 5031, so as to realize the uniform squeezing of the eraser material, and eliminate the uneven deformation or thickness difference that may occur. In addition, the two italic plates 5032 are coordinated to improve the accuracy of the material entering between the two gear rollers 5031.

[0027] In order to ensure that the material inside the lower frame 502 is completely discharged and reduce the resistance during discharge, as shown in FIG. Figure 1 and Figure 3 As shown, a guide roller 5021 for guiding the extruded rubber material to be discharged is installed on the lower frame 502, and a leather strip 5022 is sleeved between the guide roller 5021 and one of the gear rollers 5031. While the two gear rollers 5031 are driven by the servo motor 5033 to squeeze the eraser material, the leather strip 5022 also drives the guide roller 5021 to rotate counterclockwise at a uniform speed, thereby generating a pushing force to discharge the flat material on the bottom wall of the lower lower frame 502 outward, thereby avoiding the accumulation of residual material inside the lower lower frame 502.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A shaping device for producing an eraser comprises a workbench (1) and a drive structure (2) installed on the workbench (1), characterized in that: The workbench (1) is provided with a shaping groove (3), the free end of the driving structure (2) is provided with an extrusion die (4) for cooperating with the shaping groove (3) to shape the eraser material without overflow, and the workbench (1) is provided with a hopper assembly (5) for evenly feeding the eraser material into the shaping groove (3); Anti-overflow grooves (301) are provided on four sides of the top of the shaping groove (3); the extrusion mold (4) comprises a mold carrier (401) adapted to the shaping groove (3); a sealing panel (402) adapted to the anti-overflow groove (301) is sleeved on the outer side of the mold carrier (401); a notch (403) is provided on the outer wall of the mold carrier (401); and an elastic structure (404) is installed between the top wall of the notch (403) and the sealing panel (402).

2. A kind of eraser production shaping device according to claim 1, characterized in that: The anti-overflow groove (301) consists of an inner groove and an outer groove, the depth of the outer groove is greater than the depth of the inner groove, and a magnetic sheet is embedded and installed on the bottom wall of the outer groove; The blocking enclosure plate (402) is composed of an enclosure plate (4021) sleeved on the outside of the mold carrier (401) and a magnetic strip (4022) installed at the bottom of the enclosure plate (4021).

3. A shaping device for producing an eraser according to claim 1, characterized in that: The workbench (1) is provided with a long groove, and an electric threaded guide rail (6) is installed inside the long groove for driving the hopper assembly (5) to adjust the distance between the hopper assembly (5) and the shaping groove (3).

4. A shaping device for producing an eraser according to claim 1, characterized in that: The hopper assembly (5) is a rigid support member (501) threadedly sleeved on the electric threaded guide rail (6), a lowering frame (502) is installed on the top of the rigid support member (501), and a feeding frame (503) is installed on the top of the lowering frame (502).

5. A shaping device for producing an eraser according to claim 4, characterized in that: Two gear rollers (5031) connected by tooth-groove coordination are installed inside the feeding frame (503), and an inclined plate (5032) for guiding the rubber material into the middle of the two gear rollers (5031) is fixedly installed on the inner walls of both sides of the feeding frame (503). A servo motor (5033) for driving the gear rollers (5031) to rotate at a constant speed is installed on the feeding frame (503).

6. A shaping device for producing an eraser according to claim 4, characterized in that: A guide roller (5021) for guiding the extruded rubber material to be discharged is installed on the lower sliding frame (502), and a leather strip (5022) is sleeved between the guide roller (5021) and one of the gear rollers (5031).

7. A shaping device for producing an eraser according to claim 4, characterized in that: The length of the lower slide frame (502) matches the width of the shaping groove (3), and the inclination of the lower slide frame (502) is not less than 20°.

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