Forming die for decorative plate of barcode printer

Abstract

The utility model discloses a forming mold of a decorative plate of a barcode printer, which comprises a front mold assembly and a rear mold assembly, the front mold assembly comprises a front mold core, the rear mold assembly comprises a rear mold core, the front mold core is provided with a first glue inlet runner, and the rear mold core is provided with a connecting channel and a second glue inlet runner butted with the first glue inlet runner; after the front mold assembly and the rear mold assembly are closed, the front mold core and the rear mold core define a forming cavity, one end of the connecting channel communicates with the second glue inlet runner, and the other end of the connecting channel communicates with the forming cavity; the connecting channel comprises a contraction part and a straight-through part which are sequentially connected along the glue feeding direction; the contraction part is provided with a first side wall and a second side wall which are opposite to each other, the first side wall is arc-shaped, and the first side wall is gradually close to the second side wall in the glue feeding direction; the width of the straight-through part is equal to the minimum width of the contraction part, and the width of the straight-through part is kept unchanged in the glue feeding direction. The utility model can eliminate highlight marks on the surface of the decorative plate and improve the appearance of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a molding mold for a decorative plate of a barcode printer. Background Art

[0002] The decorative plate of the barcode printer is mainly used to protect and decorate the barcode printer to increase the aesthetics of the product appearance. The decorative plates of the current barcode printers are mainly injection molded. The molding mold of the existing decorative plate of the barcode printer is provided with a molding cavity and a glue inlet flow channel connected to the molding cavity. The hot melt glue enters the molding cavity through the glue inlet flow channel to mold the corresponding decorative plate. However, the structural design of the end of the existing glue inlet flow channel is not reasonable, resulting in a highlight print on the surface of the molded product near the glue inlet, which affects the appearance of the product. Utility Model Content

[0003] The utility model provides a molding die for a decorative plate of a barcode printer, which can eliminate highlight printing on the surface of the decorative plate and improve the appearance of the product.

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] An embodiment of the utility model provides a molding mold for a decorative plate of a barcode printer, comprising a front mold assembly and a rear mold assembly, the front mold assembly comprising a front mold core, the rear mold assembly comprising a rear mold core, the front mold core being provided with a first glue feed channel, the rear mold core being provided with a connecting channel and a second glue feed channel connected to the first glue feed channel; when the front mold assembly and the rear mold assembly are molded together, the front mold core and the rear mold core are enclosed to form a molding cavity, one end of the connecting channel is connected to the second glue feed channel, and the other end is connected to the molding cavity; the connecting channel comprises a contraction portion and a straight-through portion sequentially connected along a glue feed direction; the contraction portion has a first side wall and a second side wall opposite to each other, the first side wall is arc-shaped, and in the glue feed direction, the first side wall gradually approaches the second side wall so that the width of the contraction portion gradually decreases; the width of the straight-through portion is equal to the minimum width of the contraction portion, and in the glue feed direction, the width of the straight-through portion remains unchanged.

[0006] In some embodiments, the length of the through portion is greater than or equal to 4.5 mm.

[0007] In some embodiments, the surface of the rear mold core is provided with a penetrating top column groove, and an inclined top column is passed through the top column groove. The end of the inclined top column forms a top block, and the top block and the side wall of the top column groove are combined to form the connecting channel, and the first side wall is arranged on the top block.

[0008] In some embodiments, the rear mold assembly further includes an ejector plate connected to the inclined ejector column.

[0009] In some embodiments, the rear mold core is further provided with an ejector groove penetrating therethrough, the end of the ejector groove close to the front mold core is connected to the second glue inlet channel, an ejector is passed through the ejector groove, and the ejector is connected to an ejector plate.

[0010] In some embodiments, the front mold assembly also includes a top plate and a front template, the top plate is connected to the front template, the front mold core is arranged on the front template, the top plate is provided with a glue inlet, and the first glue inlet channel runs through the front template and the top plate and is connected to the glue inlet.

[0011] In some embodiments, when the front mold assembly and the rear mold assembly are molded together, the front mold core and the rear mold core enclose the two molding cavities.

[0012] The utility model has at least the following beneficial effects: one end of the connecting channel of the utility model is connected with the second glue inlet flow channel, and the other end is connected with the molding cavity, and the glue will enter the molding cavity through the connecting channel, and the connecting channel includes a contraction part and a straight-through part which are connected in sequence along the glue inlet direction, and the contraction part has a first side wall and a second side wall which are opposite to each other, and the first side wall is arc-shaped, and in the glue inlet direction, the first side wall gradually approaches the second side wall so that the width of the contraction part is gradually reduced; the width of the straight-through part is equal to the minimum width of the contraction part, and in the glue inlet direction, the width of the straight-through part remains unchanged; this structure allows the glue to flow more smoothly into the molding cavity, so that no highlight mark will be left on the surface of the decorative board after molding, thereby improving the appearance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a molding die for a decorative plate of a barcode printer according to an embodiment of the utility model;

[0014] Figure 2 A cross-sectional schematic diagram of a molding die for a decorative plate of a barcode printer according to an embodiment of the utility model;

[0015] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0016] Figure 4 This is an exploded schematic diagram of a molding die for a decorative plate of a barcode printer according to an embodiment of the utility model;

[0017] Figure 5 The figure is a schematic structural diagram of a front mold core according to an embodiment of the utility model.

[0018] Wherein, the accompanying drawings are marked as follows:

[0019] Molding cavity 10;

[0020] Front mold assembly 100, first glue inlet channel 101, front mold core 110, front mold plate 120, top plate 130, glue inlet 131;

[0021] Rear mold assembly 200, second glue inlet channel 201, ejector groove 211, rear mold core 210, rear mold plate 220, ejector plate 230, inclined ejector column 240, ejector block 241, ejector 250;

[0022] The connecting channel 300 , the contraction portion 310 , the first side wall 311 , the second side wall 312 , and the straight portion 320 . DETAILED DESCRIPTION

[0023] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.

[0024] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0026] The embodiment of the utility model provides a molding die for a decorative plate of a barcode printer, such as Figure 1-5As shown, it includes a front mold assembly 100 and a rear mold assembly 200, the front mold assembly 100 includes a front mold core 110, the rear mold assembly 200 includes a rear mold core 210, the front mold core 110 can be fixed on the front mold plate 120, and the rear mold core 210 can be fixed on the rear mold plate 220. A first glue inlet flow channel 101 is provided on the front mold core 110, and a connecting channel 300 and a second glue inlet flow channel 201 connected to the first glue inlet flow channel 101 are provided on the rear mold core 210. When the front mold assembly 100 and the rear mold assembly 200 are molded together, the front mold core 110 and the rear mold core 210 enclose a molding cavity 10, and the molding cavity 10 is used to mold the decorative panel. The second glue inlet flow channel 201 is connected to the first glue inlet flow channel 101, one end of the connecting channel 300 is connected to the second glue inlet flow channel 201, and the other end of the connecting channel 300 is connected to the molding cavity 10. The hot melt glue will pass through the first glue inlet flow channel 101, the second glue inlet flow channel 201 and the connecting channel 300 in sequence, and then enter the molding cavity 10. The connecting channel 300 includes a contraction portion 310 and a straight portion 320 connected in sequence along the glue inlet direction. The glue inlet direction is the flow direction of the glue, specifically, it flows from the second glue inlet flow channel 201 to the molding cavity 10. The contraction portion 310 has a first side wall 311 and a second side wall 312. The first side wall 311 and the second side wall 312 are arranged opposite to each other. The second side wall 312 can be parallel to the mold closing direction. The first side wall 311 is arc-shaped, and in the glue inlet direction, the first side wall 311 gradually approaches the second side wall 312, so that the width of the contraction portion 310 is gradually reduced. The width of the straight portion 320 is equal to the minimum width of the contraction portion 310, and in the direction of the glue feeding, the width of the straight portion 320 remains unchanged. This structure allows the glue to flow more smoothly into the molding cavity 10, so that no highlight marks are left on the surface of the molded decorative board, thereby improving the appearance of the product and enhancing the quality of the product.

[0027] In some embodiments, the length of the straight portion 320 is greater than or equal to 4.5 mm. In the prior art, the length of the straight portion is only about 1.5 mm, which is too short. In this embodiment, the length of the straight portion 320 is greatly lengthened. After experiments, when the length of the straight portion 320 is greater than or equal to 4.5 mm, it has a good effect on improving the appearance of the product.

[0028] In some embodiments, the surface of the rear mold core 210 is provided with a through top column groove, and an inclined top column 240 is inserted into the top column groove. The end of the inclined top column 240 (the end close to the front mold core 110) forms a top block 241. The top block 241 and the side wall of the top column groove are enclosed to form a connecting channel 300. The first side wall 311 is provided on the top block 241, and the side wall of the top column groove opposite to the first side wall 311 forms a second side wall 312. Since the width of the contraction portion 310 of the connecting channel 300 is larger than that of the straight-through portion 320, and the contraction portion 310 is located on the relatively inner side, the top block 241 is provided to cooperate with the inner wall of the top column groove to form the connecting channel 300.

[0029] Furthermore, the rear mold assembly 200 further includes an ejector plate 230 connected to the inclined ejector column 240. After the front mold assembly 100 and the rear mold assembly 200 are separated, the ejector plate 230 can drive the inclined ejector column 240 to eject outward to push the formed decorative panel away from the rear mold core 210, making it convenient to take away the formed product. At the same time, the ejector column groove is used to form the connecting channel 300 and also to allow the inclined ejector column 240 to move, so that no additional groove is required, simplifying the overall structure.

[0030] In some embodiments, the rear mold core 210 is further provided with an ejector groove 211 penetrating the rear mold core 210, and one end of the ejector groove 211 close to the front mold core 110 is connected to the second glue inlet flow channel 201, and an ejector 250 is inserted into the ejector groove 211, and the ejector 250 is connected to the ejector plate 230. After the front mold assembly 100 and the rear mold assembly 200 are separated, the ejector plate 230 can drive the ejector 250 to eject outward to eject the sprue material in the second glue inlet flow channel 201 for the next group of products to be formed.

[0031] In some embodiments, the front mold assembly 100 further includes a top plate 130 and a front mold plate 120, the top plate 130 is connected to the front mold plate 120, the front mold core 110 is disposed on the front mold plate 120, the top plate 130 is provided with a glue inlet 131, and the first glue inlet channel 101 runs through the front mold plate 120 and the top plate 130 and is connected to the glue inlet 131. The hot melt glue will flow from the glue inlet 131 into the first glue inlet channel 101.

[0032] In some embodiments, when the front mold assembly 100 and the rear mold assembly 200 are molded together, the front mold core 110 and the rear mold core 210 enclose two molding cavities 10, that is, the mold of this embodiment is configured with two molding cavities 10, which can mold two products at a time and improve production efficiency.

[0033] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.

Claims

1. A molding die for a decorative plate of a barcode printer, characterized in that: It comprises a front mold assembly and a rear mold assembly, wherein the front mold assembly comprises a front mold core, and the rear mold assembly comprises a rear mold core, a first glue feed channel is arranged on the front mold core, and a connecting channel and a second glue feed channel connected to the first glue feed channel are arranged on the rear mold core; when the front mold assembly and the rear mold assembly are molded together, the front mold core and the rear mold core enclose a molding cavity, one end of the connecting channel is connected with the second glue feed channel, and the other end is connected with the molding cavity; the connecting channel comprises a contraction portion and a straight-through portion which are connected in sequence along the glue feed direction; the contraction portion comprises a first side wall and a second side wall which are opposite to each other, the first side wall is arc-shaped, and in the glue feed direction, the first side wall gradually approaches the second side wall so that the width of the contraction portion gradually decreases; the width of the straight-through portion is equal to the minimum width of the contraction portion, and in the glue feed direction, the width of the straight-through portion remains unchanged.

2. The molding die for the decorative plate of the barcode printer according to claim 1, characterized in that: The length of the straight-through portion is greater than or equal to 4.5 mm.

3. The molding die for the decorative plate of the barcode printer according to claim 1, characterized in that: The surface of the rear mold core is provided with a penetrating top column groove, and an inclined top column is inserted into the top column groove. The end of the inclined top column forms a top block, and the top block and the side wall of the top column groove are enclosed to form the connecting channel. The first side wall is arranged on the top block.

4. The molding die for the decorative plate of the barcode printer according to claim 3, characterized in that: The rear mold assembly also includes an ejector plate connected to the inclined ejector column.

5. The molding die for the decorative plate of the barcode printer according to claim 4, characterized in that: The rear mold core is also provided with an ejector groove penetrating the rear mold core, and one end of the ejector groove close to the front mold core is communicated with the second glue inlet flow channel. An ejector is inserted into the ejector groove, and the ejector is connected to an ejector plate.

6. The molding die for the decorative plate of the barcode printer according to any one of claims 1 to 5, characterized in that: The front mold assembly also includes a top plate and a front mold plate, the top plate is connected to the front mold plate, the front mold core is arranged on the front mold plate, the top plate is provided with a glue inlet, and the first glue inlet channel runs through the front mold plate and the top plate and is connected to the glue inlet.

7. The molding die for the decorative plate of the barcode printer according to any one of claims 1 to 5, characterized in that: When the front mold assembly and the rear mold assembly are molded together, the front mold core and the rear mold core enclose the two molding cavities.

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