Floor brush base mold of sweeper

Abstract

The utility model discloses a floor brush base mold of a sweeper. The floor brush base mold comprises a front mold assembly, a rear mold assembly, a first side core-pulling mechanism and a second side core-pulling mechanism, the front die assembly comprises a front die plate, and a base female die is arranged on the front die plate. The rear mold assembly comprises a rear mold plate, a base male mold is arranged on the rear mold plate, and a base injection molding cavity is formed by the base male mold and the base female mold; the first side core-pulling mechanism comprises a first side mold core and a first inclined guide column, the first side mold core is slidably arranged on the rear mold plate and extends into the base injection molding cavity, the first inclined guide column is arranged on the front mold plate, and a first inclined guide groove corresponding to the first inclined guide column is formed in the first side mold core; the second side core-pulling mechanism comprises a second side mold core and a second inclined guide column, the second side mold core is arranged on the rear mold plate in a sliding mode and extends into the base injection molding cavity, the second inclined guide column is arranged on the front mold plate, and a second inclined guide groove corresponding to the second inclined guide column is formed in the second side mold core.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a mold for a floor brush base of a sweeping machine. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. It is known as the "mother of industry".

[0003] The injection mold usually includes a front mold and a back mold. When the front mold and the back mold are buckled together, the molten material is injected into the cavity through the gate. When the mold is opened, the front mold and the back mold are separated to take out the plastic product.

[0004] A base for a floor brush on a sweeping robot is used to load a power component (motor) and a scraper bar of the sweeping robot. However, one end of the base has a connecting portion, both sides of the connecting portion have connecting holes, and the other end of the base has a through hole leading to the inside of the base, making it difficult to mold the base and inconvenient to demould. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model aims to provide a mold for a floor brush base of a sweeping machine which is easy to demould.

[0006] The utility model is implemented by the following technical scheme: a floor brush base mold for a sweeping machine, comprising a front mold assembly, a rear mold assembly, a first side core pulling mechanism and a second side core pulling mechanism;

[0007] The front mold assembly comprises a front mold plate, and the front mold plate is provided with a base concave mold;

[0008] The rear mold assembly comprises a rear mold plate, on which a base convex mold is provided, and the base convex mold and the base concave mold form a base injection cavity;

[0009] The first side core pulling mechanism comprises a first side core and a first oblique guide column, the first side core is slidably arranged on the rear template, and the first side core extends into the injection cavity of the base, the first oblique guide column is arranged on the front template, and the first side core is provided with a first oblique guide groove corresponding to the first oblique guide column;

[0010] The number of the second side core pulling mechanisms is two, and the two second side core pulling mechanisms are arranged opposite to each other and are respectively arranged on both sides of the base punch. The second side core pulling mechanism includes a second side core and a second inclined guide column. The second side core can be slidably arranged on the rear template, and the second side core extends into the injection cavity of the base. The second inclined guide column is arranged on the front template, and the second side core is provided with a second inclined guide groove corresponding to the second inclined guide column.

[0011] In a possible implementation, a first shaping portion is provided on the base concave mold, and the first shaping portion extends into the base injection cavity to form a groove structure having the same shape as the first shaping portion on the base product.

[0012] In a possible implementation manner, a second shaping portion is provided on the base concave mold, and a shaping groove corresponding to the second shaping portion is provided on the base convex mold.

[0013] In a possible implementation manner, a plurality of positioning posts are disposed on the base concave mold, and positioning holes corresponding to the positioning posts are disposed on the base convex mold.

[0014] In a possible implementation, one end of the first side core close to the base punch has a bevel protrusion, the base punch has a bevel groove matching the bevel protrusion, and the bevel protrusion extends into the bevel groove to abut against the base punch.

[0015] In a possible implementation manner, one end of the second side core close to the base punch has a connecting portion, the connecting portion is cylindrical, and the connecting portion abuts against the base punch.

[0016] In a possible implementation manner, an elastic member is provided in the second side core, one end of the elastic member abuts against the second side core, and the other end of the elastic member abuts against the base punch.

[0017] In a possible implementation, the front template is provided with a first limit block, and the rear template is provided with a limit groove. When the mold is closed, the first limit block is inserted into the limit groove, and the inner side surface of the first limit block conflicts with the outer side surface of the first side core.

[0018] In a possible implementation manner, a second limit block is provided on the front template, and when the mold is closed, the inner side surface of the second limit block abuts against the outer side surface of the second side core.

[0019] In a possible implementation manner, a plurality of elastic positioning members are provided on the base punch, a plurality of positioning grooves are provided on the bottom surfaces of the first side core and the second side core, and each elastic positioning member is provided corresponding to each positioning groove.

[0020] Compared with the prior art, the beneficial effect of the utility model is that when the molded product needs to be demolded, the rear template is separated from the front template, the first side core and the second side core move with the rear template, the first side core is moved away from the molded product under the action of the first inclined guide column, and the second side core is moved away from the molded product under the action of the second inclined guide column; when the first side core and the second side core are completely separated from the molded product, the molded product can be directly ejected to achieve demolding, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a floor brush base mold for a sweeping machine of the present utility model;

[0022] Figure 2 It is a structural schematic diagram of the front mold assembly in the mold of the floor brush base of the sweeping machine of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the rear mold assembly in the mold of the floor brush base of the sweeping machine of the utility model;

[0024] Figure 4 It is a schematic diagram of the rear mold component in the mold of the floor brush base of the sweeping machine of the utility model in the demoulding state;

[0025] Figure 5 It is a structural schematic diagram of the first side core in the mold of the floor brush base of the sweeping machine of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the second side core in the mold of the floor brush base of the sweeping machine of the utility model.

[0027] In the figure:

[0028] 100, front mold fixing plate; 101, first guide column;

[0029] 200, front mold pad;

[0030] 300, front template; 301, base concave mold; 3011, first shaping part; 3012, second shaping part; 3013, positioning column; 302, first limiting block; 303, second limiting block;

[0031] 400, rear template; 401, base punch; 4011, shaping groove; 4012, positioning hole; 4013, inclined groove; 402, elastic positioning member; 403, limiting groove; 404, first guide hole; 405, second guide hole;

[0032] 500, pad;

[0033] 600, jacking plate; 601, ejector pin; 602, second guide column;

[0034] 700, rear mold fixing plate;

[0035] 800, first side core; 801, inclined protrusion; 802, positioning groove; 803, first inclined guide column; 804, first inclined guide groove;

[0036] 900, second side core; 901, connecting portion; 902, second inclined guide column; 903, second inclined guide groove; 904, elastic member. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0040] like Figure 1-6The mold for the base of a floor sweeper shown in the figure includes a front mold assembly, a rear mold assembly, a first side core pulling mechanism and a second side core pulling mechanism; the front mold assembly includes a front mold plate 300, on which a base die 301 is provided; the rear mold assembly includes a rear mold plate 400, on which a base convex mold 401 is provided, and the base convex mold 401 and the base die 301 form a base injection cavity; the first side core pulling mechanism includes a first side core 800 and a first oblique guide column 803, the first side core 800 can be slidably arranged on the rear mold plate 400, and the first side core 800 extends into the base injection cavity, and the first oblique guide column 803 is arranged On the front template 300, the first side core 800 is provided with a first inclined guide groove 804 corresponding to the first inclined guide column 803; the number of the second side core pulling mechanisms is two, the two second side core pulling mechanisms are arranged opposite to each other, and are respectively arranged on both sides of the base punch 401, the second side core pulling mechanism includes a second side core 900 and a second inclined guide column 902, the second side core 900 can be slidably arranged on the rear template 400, and the second side core 900 extends into the injection cavity of the base, the second inclined guide column 902 is arranged on the front template 300, and the second side core 900 is provided with a second inclined guide groove 903 corresponding to the second inclined guide column 902. It is easy to understand that when the molded product needs to be demolded, the rear template 400 is separated from the front template 300, the first side core 800 and the second side core 900 move with the rear template 400, the first side core 800 moves away from the molded product under the action of the first inclined guide column 803, and the second side core 900 moves away from the molded product under the action of the second inclined guide column 902.

[0041] It should be supplemented that the front mold assembly also includes a front mold fixing plate 100 and a front mold pad 200, the front mold pad 200 is arranged on the front mold fixing plate 100, the front mold plate 300 is arranged on the front mold pad 200, the rear mold assembly also includes a rear mold fixing plate 700 and a cushion block 500, the number of cushion blocks 500 is two and they are respectively arranged on both sides of the rear mold fixing plate 700, the rear mold plate 400 is arranged on the cushion block 500, the rear mold fixing plate 700 is provided with a lifting plate 600, the lifting plate 600 is provided with a plurality of ejector pins 601, and the rear mold plate 400 is provided with a plurality of pinholes, each ejector pin 601 is arranged one by one corresponding to each pinhole, when the molded product needs to be ejected, the lifting plate 600 rises under the action of an external driving member, so that the molded product is ejected by the ejector pin 601, and the demolding work is completed.

[0042] Furthermore, a first guide column 101 is provided on the front mold assembly, and a first guide hole 404 corresponding to the first guide column 101 is provided on the rear mold assembly. The first guide column 101 is slidably connected in the first guide hole 404. This arrangement can improve the stability of the movement of the mold during opening and closing. A second guide column 602 is provided on the lifting plate 600, and a second guide hole 405 corresponding to the second guide column 602 is provided on the rear mold plate 400. The second guide column 602 is slidably connected in the second guide hole 405. This arrangement can ensure the stability of the movement of the lifting plate 600 during demolding.

[0043] Please refer to Figure 2 In this embodiment, the base concave mold 301 is provided with a first shaping portion 3011, which extends into the base injection cavity and is used to form a groove structure with the same shape as the first shaping portion 3011 on the base product. The top surface of the first shaping portion 3011 is a right triangle, but the hypotenuse of the right triangle is an arc. It is easy to understand that the base product has a mounting portion for mounting various parts, so the first shaping portion 3011 can be provided to form this mounting portion on the product, and one side of the first side core 800 is also arc-shaped, corresponding to the arc of the outer side of the first shaping portion 3011.

[0044] Please refer to Figure 2 In this embodiment, the base concave mold 301 is provided with a second shaping portion 3012, and the base convex mold 401 is provided with a shaping groove 4011 corresponding to the second shaping portion 3012. It should be noted that the second shaping portion 3012 is in a rectangular shape as a whole, and after the mold is closed, the top surface of the second shaping portion 3012 does not contact the bottom surface of the shaping groove 4011, so as to form a rectangular groove on the outer shell of the molded product.

[0045] Please refer to Figure 2 and Figure 3 In a possible implementation, a plurality of positioning posts 3013 are provided on the base die 301, and positioning holes 4012 corresponding to the positioning posts 3013 are provided on the base die 401. It is easy to understand that the base product needs to be installed on the sweeper, so the base product needs to have mounting holes for fastening screws to pass through, and the positioning posts 3013 and the positioning holes 4012 are provided to form mounting holes on the base product.

[0046] Please refer to Figure 3 and Figure 5In a possible implementation, the first side core 800 has an inclined protrusion 801 at one end close to the base punch 401, and the base punch 401 has an inclined groove 4013 that matches the inclined protrusion 801, and the inclined protrusion 801 extends into the inclined groove 4013 to collide with the base punch 401. It is easy to understand that the base product has a through hole for passing the wire, and the inclined protrusion 801 cooperates with the inclined groove 4013 to form this through hole when the base product is molded, and the contact surface between the inclined protrusion 801 and the inclined groove 4013 is an inclined surface, which is conducive to increasing the contact area between the inclined protrusion 801 and the inclined groove 4013.

[0047] Please refer to Figure 6 In a possible implementation, the second side core 900 has a connecting portion 901 at one end close to the base punch 401, and the connecting portion 901 is cylindrical and contacts the base punch 401. It is easy to understand that one end of the base product has a portion for connecting other parts of the sweeper, and a through hole for the bolt to pass through needs to be horizontally arranged on this portion. Therefore, the setting of the connecting portion 901 on the second side core 900 can form this through hole on the base product.

[0048] Please refer to Figure 6 In a possible implementation, an elastic member 904 is provided in the second side core 900, one end of the elastic member 904 abuts against the second side core 900, and the other end of the elastic member 904 abuts against the base convex mold 401. Specifically, the elastic member 904 is a spring, a blind hole is provided on the second side core 900, and the spring is provided in the blind hole, one end of the spring abuts against the bottom of the blind hole, and the other end abuts against the base convex mold 401. The provision of the spring can buffer the sliding of the second side core 900, which is conducive to a more stable sliding of the second side core 900.

[0049] Please refer to Figure 2 In a possible embodiment, a first limiting block 302 is provided on the front template 300, and a limiting groove 403 is provided on the rear template 400. When the mold is closed, the first limiting block 302 is inserted into the limiting groove 403, and the inner side of the first limiting block 302 conflicts with the outer side of the first side core 800. It should be noted that the hot-melt material is injected into the cavity and then cooled to form a product. When the material is cooled, the air pressure in the cavity increases, thereby forcing the first side core 800 to move outward. Therefore, the setting of the first limiting block 302 can limit the first side core 800 to prevent the first side core 800 from moving, which is beneficial to the molding of the product and improves the quality of the product. The setting of the limiting groove 403 can make the front template 300 and the rear template 400 fit more closely. When the mold is opened, the first limiting block 302 will move with the front template 300 and will not block the extraction of the first side core 800.

[0050] Please refer to Figure 2 In a possible implementation, the front mold plate 300 is provided with a second stopper 303. When the mold is closed, the inner side of the second stopper 303 contacts the outer side of the second side core 900. It is easy to understand that the second side core 900 will also be forced to move outward by the air pressure. The second stopper 303 can limit the second side core 900 to prevent the second side core 900 from moving. When the mold is opened, the second stopper 303 will move with the front mold plate 300 and will not prevent the second side core 900 from being pulled out.

[0051] Please refer to Figures 4 to 6 In a possible embodiment, a plurality of elastic positioning members 402 are provided on the base punch 401, and a plurality of positioning grooves 802 are provided on the bottom surfaces of the first side core 800 and the second side core 900, and each elastic positioning member 402 is provided corresponding to each positioning groove 802. It should be noted that two positioning grooves 802 are provided at the bottom of the first side core 800, and the two positioning grooves 802 are respectively located at the two ends of the movable limit distance of the first side core 800. In the mold closing state, the elastic positioning member 402 extends into one of the positioning grooves 802, and in the demolding state, the elastic positioning member 402 extends into the other positioning groove 802. Similarly, two positioning grooves 802 are also provided at the bottom of the second side core 900, and the two positioning grooves 802 are respectively located at the two ends of the movable limit distance of the second side core 900.

[0052] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A floor brush base mold for a sweeping machine, characterized in that: It includes a front mold assembly, a rear mold assembly, a first side core pulling mechanism and a second side core pulling mechanism; The front mold assembly comprises a front mold plate, and the front mold plate is provided with a base concave mold; The rear mold assembly comprises a rear mold plate, on which a base convex mold is provided, and the base convex mold and the base concave mold form a base injection cavity; The first side core pulling mechanism comprises a first side core and a first oblique guide column, the first side core is slidably arranged on the rear template, and the first side core extends into the injection cavity of the base, the first oblique guide column is arranged on the front template, and the first side core is provided with a first oblique guide groove corresponding to the first oblique guide column; The number of the second side core pulling mechanisms is two, and the two second side core pulling mechanisms are arranged opposite to each other and are respectively arranged on both sides of the base punch. The second side core pulling mechanism includes a second side core and a second inclined guide column. The second side core can be slidably arranged on the rear template, and the second side core extends into the injection cavity of the base. The second inclined guide column is arranged on the front template, and the second side core is provided with a second inclined guide groove corresponding to the second inclined guide column.

2. The sweeping machine brush base mold according to claim 1, characterized in that: The base concave mold is provided with a first shaping portion, which extends into the base injection cavity and is used to form a groove structure with the same shape as the first shaping portion on the base product.

3. The sweeping machine brush base mold according to claim 1, characterized in that: The base concave mold is provided with a second shaping portion, and the base convex mold is provided with a shaping groove corresponding to the second shaping portion.

4. The sweeping machine brush base mold according to claim 1, characterized in that: The base concave mold is provided with a plurality of positioning posts, and the base convex mold is provided with positioning holes corresponding to the positioning posts.

5. The sweeping machine brush base mold according to claim 1, characterized in that: One end of the first side core close to the base punch has a bevel protrusion, and the base punch has a bevel groove matching the bevel protrusion, and the bevel protrusion extends into the bevel groove and contacts the base punch.

6. The sweeping machine brush base mold according to claim 1, characterized in that: One end of the second side core close to the base punch has a connecting portion, the connecting portion is cylindrical, and the connecting portion abuts against the base punch.

7. The sweeping machine brush base mold according to claim 1, characterized in that: An elastic member is disposed in the second side core, one end of the elastic member abuts against the second side core, and the other end of the elastic member abuts against the base convex mold.

8. The sweeping machine brush base mold according to claim 1, characterized in that: The front template is provided with a first limiting block, and the rear template is provided with a limiting groove. When the mold is closed, the first limiting block is inserted into the limiting groove, and the inner side surface of the first limiting block conflicts with the outer side surface of the first side core.

9. The sweeping machine brush base mold according to claim 1, characterized in that: The front mold plate is provided with a second limiting block, and when the mold is closed, the inner side surface of the second limiting block abuts against the outer side surface of the second side core.

10. The sweeping machine brush base mold according to claim 1, characterized in that: The base convex mold is provided with a plurality of elastic positioning members, the bottom surfaces of the first side core and the second side core are provided with a plurality of positioning grooves, and each elastic positioning member is arranged corresponding to each positioning groove.

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