Mould for rear shell of main machine of sweeper
By designing a mold for the rear case of the sweeper main machine, including multiple core extraction mechanisms, the problem of inconvenience in mold release in the prior art is solved, and a more efficient product mold release process is achieved.
Patent Information
- Application Number
- CN202421234675.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
In the prior art, the mold release process of the rear case of the sweeper main machine is inconvenient, which leads to difficulty in product demolding.
A rear housing mold for the sweeper main machine is designed, including a front mold assembly, a rear mold assembly, a first side core extraction mechanism, a second side core extraction mechanism and a third side core extraction mechanism. Through the design of these core extraction mechanisms, it is possible to effectively separate from the molded product when the rear mold and the front mold are separated, thereby avoiding hindering the release of the product.
This design significantly improves the product's mold release convenience, avoids the problem of the core pulling mechanism hindering the mold release, and makes the molding and mold release process of the rear case of the sweeper main machine smoother.
Smart Images
Figure CN222431467U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molds, in particular to a rear shell mold of a main machine 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 host back shell used on a sweeping robot is used to load a mainboard and a battery assembly for powering the mainboard. The host back shell is in a rectangular shape as a whole. The top surface and both side surfaces of the host back shell have snap-on holes. At the same time, the side surfaces also have mounting holes for bolts to pass through. One end of the host back shell also has a mounting hole, and the other end of the host back shell has a channel for passing wires. In addition, ribs are provided on the inner side of the host back shell to improve the structural strength of the product, so that each surface of the host back shell has a structure that needs to be formed, which makes it inconvenient to demould the host back shell. Utility Model Content
[0005] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a rear shell mold of a main body of a sweeping machine to solve the technical problem of inconvenient demoulding in the prior art.
[0006] The utility model is implemented by the following technical scheme: a rear shell mold of a sweeping machine host, comprising a front mold assembly, a rear mold assembly, a first side core pulling mechanism, a second side core pulling mechanism and a third side core pulling mechanism;
[0007] The front mold assembly comprises a front mold plate, and the front mold plate is provided with a rear shell concave mold;
[0008] The rear mold assembly comprises a rear mold plate, on which a rear shell convex mold is provided, and the rear shell convex mold and the rear shell concave mold form a rear shell injection cavity;
[0009] The number of the first side core pulling mechanisms is two, which are respectively arranged on both sides of the rear shell injection cavity, and the first side core pulling mechanisms include a first side core and a first oblique guide column, the first side core can be slidably arranged on the rear template, and the first side core extends into the rear shell injection cavity, 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 second side core pulling mechanism comprises a second side core and a second oblique guide column, the second side core is slidably arranged on the rear template, and the second side core extends into the injection molding cavity of the rear shell, the second oblique guide column is arranged on the front template, and the second side core is provided with a second oblique guide groove corresponding to the second oblique guide column;
[0011] The third side core pulling mechanism includes a driving member and a third side core, the driving member is arranged on the rear template, the first end of the third side core is connected to the driving end of the driving member, and the second end of the first side core extends into the injection cavity of the rear shell.
[0012] In a possible implementation, a first clamping protrusion is provided at one end of the first side core close to the rear shell punch, the first clamping protrusion abuts against the rear shell punch, and the first clamping protrusion is used to form a clamping hole on the side of the rear shell product.
[0013] In a possible implementation manner, a second clamping protrusion is provided on the rear shell concave mold, the second clamping protrusion abuts against the rear shell convex mold, and the second clamping protrusion is used to form a clamping hole on the top surface of the rear shell product.
[0014] In a possible embodiment, a first shaping portion is provided at one end of the second side core close to the rear shell punch, and a first shaping groove corresponding to the first shaping portion is provided on the rear shell punch, and when the mold is closed, the first shaping portion extends into the first shaping groove.
[0015] In a possible implementation, a second shaping groove is provided at the bottom of the third side core, and a second shaping portion corresponding to the second shaping groove is provided on the rear shell punch, and when the mold is closed, the second shaping groove accommodates the second shaping portion.
[0016] In a possible implementation, a third shaping portion is provided at one end of the third side core close to the rear shell punch, a third shaping groove corresponding to the third shaping portion is provided on the rear shell punch, and the third shaping portion extends into the third shaping groove.
[0017] In a possible implementation, the third-side core-pulling mechanism further includes a fixing member, the fixing member is disposed at one end of the rear template, and the driving member is disposed on the fixing member.
[0018] In a possible implementation manner, a fourth shaping groove is provided on the rear shell punch, and the fourth shaping groove is connected to the rear shell injection cavity.
[0019] In a possible embodiment, the rear mold assembly also includes a lifting plate, which is slidably arranged relative to the rear mold plate, and a plurality of ejector pins are provided on the lifting plate. A plurality of pinholes are provided on the rear shell punch, and the pinholes are connected to the rear shell injection cavity, and each ejector pin is slidably connected in each pinhole.
[0020] In a possible implementation, the plurality of ejector pins include columnar ejector pins and sheet ejector pins, wherein the columnar ejector pins are used to lift the main body of the rear shell product, and the sheet ejector pins are used to lift the rib portion of the rear shell product.
[0021] 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, and are separated from the molded product under the action of the first inclined guide column and the second inclined guide column, and the third side core is separated from the molded product under the action of the driving member, which effectively avoids the first side core, the second side core and the third side core from obstructing the demolding of the product, greatly improving the convenience of product demolding. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a structural schematic diagram of the rear housing mold of the sweeping machine host of the utility model;
[0023] Figure 2 This is a structural schematic diagram of the front mold component in the rear shell mold of the sweeping machine host of the utility model;
[0024] Figure 3 It is a structural schematic diagram of the rear mold assembly in the rear shell mold of the sweeping machine host of the utility model;
[0025] Figure 4 It is a structural schematic diagram of the rear shell mold of the sweeping machine main body of the utility model in the mold opening state;
[0026] Figure 5 It is a structural schematic diagram of the rear shell convex mold in the rear shell mold of the sweeping machine host of the utility model;
[0027] Figure 6 It is a structural schematic diagram of the first side core in the rear shell mold of the sweeping machine main body of the utility model;
[0028] Figure 7 It is a structural schematic diagram of the second side core in the rear shell mold of the sweeping machine main body of the utility model;
[0029] Figure 8It is a structural schematic diagram of the third side core in the rear shell mold of the sweeping machine main body of the utility model.
[0030] In the figure:
[0031] 100, front mold fixing plate; 101, front mold pad; 102, rear mold fixing plate; 103, pad; 104, first guide column;
[0032] 200, front template; 201, rear shell concave mold; 202, second clamping protrusion;
[0033] 300, rear template; 301, rear shell punch; 302, first shaping groove; 303, second shaping portion; 304, third shaping groove; 305, fourth shaping groove; 306, first guide hole; 307, second guide hole;
[0034] 400, jacking plate; 401, ejector pin; 402, second guide column;
[0035] 500, first side core; 501, first oblique guide column; 502, first oblique guide groove; 503, first clamping protrusion;
[0036] 600, second side core; 601, second inclined guide column; 602, second inclined guide groove; 603, first shaping portion;
[0037] 700, third side core; 701, driving member; 702, second shaping groove; 703, third shaping part; 704, fixing member. DETAILED DESCRIPTION
[0038] 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.
[0039] 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.
[0040] 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.
[0041] like Figure 1-8 The rear shell mold of a sweeping machine host shown in the figure includes a front mold assembly, a rear mold assembly, a first side core pulling mechanism, a second side core pulling mechanism and a third side core pulling mechanism; the front mold assembly includes a front mold plate 200, and the front mold plate 200 is provided with a rear shell cavity 201; the rear mold assembly includes a rear mold plate 300, and the rear mold plate 300 is provided with a rear shell punch 301, and the rear shell punch 301 and the rear shell cavity 201 form a rear shell injection cavity; the number of the first side core pulling mechanisms is two, which are respectively arranged on both sides of the rear shell injection cavity, and the first side core pulling mechanism includes a first side core 500 and a first oblique guide column 501, the first side core 500 can be slidably arranged on the rear mold plate 300, and the first side core 500 extends into the rear shell injection cavity, and the first oblique guide column 501 is arranged on the front mold plate 2 00, a first inclined guide groove 502 corresponding to the first inclined guide column 501 is provided on the first side core 500; the second side core pulling mechanism includes a second side core 600 and a second inclined guide column 601, the second side core 600 can be slidably arranged on the rear template 300, and the second side core 600 extends into the injection molding cavity of the rear shell, the second inclined guide column 601 is arranged on the front template 200, and the second side core 600 is provided with a second inclined guide groove 602 corresponding to the second inclined guide column 601; the third side core pulling mechanism includes a driving member 701 and a third side core 700, the driving member 701 is arranged on the rear template 300, the first end of the third side core 700 is connected to the driving end of the driving member 701, and the second end of the first side core 500 extends into the injection molding cavity of the rear shell. It should be noted that a gate and a runner are also provided on the front mold assembly. The hot-melt material enters the injection cavity of the rear shell through the gate and the runner, and a product is formed after cooling. When the molded product needs to be demolded, the rear mold plate 300 is separated from the front mold plate 200, and the first side core 500 and the second side core 600 move with the rear mold plate 300, and are separated from the molded product under the action of the first inclined guide column 501 and the second inclined guide column 601, and the third side core 700 is separated from the molded product under the action of the driving member 701, which effectively avoids the first side core 500, the second side core 600 and the third side core 700 from hindering the product demolding, thereby greatly improving the convenience of product demolding.
[0042] Furthermore, a first guide column 104 is provided on the front mold assembly, and a first guide hole 306 corresponding to the first guide column 104 is provided on the rear mold assembly. The first guide column 104 is slidably connected in the first guide hole 306. This arrangement can improve the stability of the mold movement when opening and closing the mold.
[0043] Please refer to Figure 6 In this embodiment, a first clamping protrusion 503 is provided at one end of the first side core 500 close to the rear shell punch 301, and the first clamping protrusion 503 abuts against the rear shell punch 301. The first clamping protrusion 503 is used to form a clamping hole on the side of the rear shell product. It is easy to understand that the first clamping protrusion 503 is in the shape of a rectangle, and the two ends of the first clamping protrusion 503 are of different sizes, which is used to form a connected large hole and a small hole on the product. When the back shell product needs to be installed on the sweeping machine, the clamping structure on the sweeping machine can be inserted from the large hole of the clamping hole and then slide into the small hole, which helps to facilitate the smooth clamping of the back shell product and the sweeping machine. In addition, the top surface of the first clamping protrusion 503 and the outer surface of the rear shell punch 301 fit together to ensure that a clamping hole can be formed on the back shell product. In addition, the number of the first clamping protrusions 503 can be freely set according to actual needs; in a further embodiment, the rear shell punch 301 can also be provided with a groove corresponding to the first clamping protrusion 503. When the mold is closed, the first clamping protrusion 503 is inserted into the groove, which can prevent the hot-melt material from flowing into the gap between the first clamping protrusion 503 and the rear shell punch 301, which helps to improve the stability of the clamping hole forming on the back shell product.
[0044] Please refer to Figure 2 In this embodiment, the rear shell concave mold 201 is provided with a second clamping protrusion 202, the second clamping protrusion 202 abuts against the rear shell convex mold 301, and the second clamping protrusion 202 is used to form a clamping hole on the top surface of the rear shell product. It is easy to understand that the second clamping protrusion 202 is similar in structure to the first clamping protrusion 503 and has the same function, that is, both are used to form a clamping hole on the rear shell product.
[0045] Please refer to Figure 5 and Figure 7 In this embodiment, the second side core 600 is provided with a first shaping portion 603 at one end close to the rear shell punch 301, and the rear shell punch 301 is provided with a first shaping groove 302 corresponding to the first shaping portion 603. When the mold is closed, the first shaping portion 603 extends into the first shaping groove 302. It should be noted that one end of the rear shell product has a mounting hole, and the rear shell product can be fixed by using a fastening screw. The first shaping portion 603 is provided to form this mounting hole on the rear shell product, and since this mounting hole is a blind hole, after the mold is closed, the first shaping portion 603 extends into the first shaping groove 302, and the first shaping portion 603 does not contact the rear shell punch 301, so that the material in a hot melt state enters the first shaping groove 302 to form a mounting hole on the product.
[0046] Please refer to Figure 5 and Figure 8 In this embodiment, a second shaping groove 702 is provided at the bottom of the third side core 700, and a second shaping portion 303 corresponding to the second shaping groove 702 is provided on the rear shell punch 301. When the mold is closed, the second shaping groove 702 accommodates the second shaping portion 303. It should be noted that the rear shell product has a channel for passing the wire, the second shaping portion 303 is semi-cylindrical, and the second shaping groove 702 has the same shape as the second shaping portion 303. When the mold is in the closed state, the second shaping groove 702 accommodates the second shaping portion 303, and the second shaping portion 303 does not contact the third side core 700, so that the material in the hot melt state flows into the second shaping groove 702 to form a channel on the molded product.
[0047] Please refer to Figure 5 and Figure 8 In this embodiment, a third shaping portion 703 is provided at one end of the third side core 700 close to the rear shell punch 301, and a third shaping groove 304 corresponding to the third shaping portion 703 is provided on the rear shell punch 301, and the third shaping portion 703 extends into the third shaping groove 304. It should be noted that the end of the rear shell product has a groove-shaped connecting portion, and when the mold is in the mold closing state, the third shaping portion 703 extends into the third shaping groove 304, and the third shaping portion 703 does not contact the rear shell punch 301, so that the hot melt material flows into the third shaping groove 304 to form this connecting portion on the molded product.
[0048] Please refer to Figure 3 In this embodiment, the third side core pulling mechanism further includes a fixing member 704, which is disposed at one end of the rear template 300, and the driving member 701 is disposed on the fixing member 704. In this embodiment, the third side core pulling is pulled out over a long distance. Since there is not enough space on the rear template 300 for the third side core pulling to move, a part of the third side core pulling will slide out of the rear template 300, and without the support of the rear template 300, it is not conducive to the stable sliding of the third side core pulling. The setting of the fixing member 704 can provide a mounting base for the driving member 701, and can also provide sufficient moving space for the third side core pulling, which is conducive to more stable pulling of the third side core pulling.
[0049] Please refer to Figure 5 In this embodiment, a fourth shaping groove 305 is provided on the rear shell male mold 301, and the fourth shaping groove 305 is connected to the rear shell injection cavity. It should be noted that ribs are provided on the inner side of the rear shell product, and the hot melt material will flow into the fourth shaping groove 305 to form ribs on the rear shell product.
[0050] Please refer to Figure 1 and Figure 4In this embodiment, the rear mold assembly also includes a lifting plate 400, which is slidably arranged relative to the rear mold plate 300. A plurality of ejector pins 401 are arranged on the lifting plate 400. A plurality of pinholes are arranged on the rear shell punch 301. The pinholes are connected to the injection molding cavity of the rear shell. Each ejector pin 401 is slidably connected in each pinhole. It should be supplemented that the front mold assembly also includes a front mold fixing plate 100 and a front mold pad 101. The front mold pad 101 is arranged on the front mold fixing plate 100. The front mold plate 200 is arranged on the front mold pad 101. The rear mold assembly also includes a rear mold fixing plate 102 and a cushion block 103. The number of cushion blocks 103 is two and they are respectively arranged on both sides of the rear mold fixing plate 102. The rear mold plate 300 is arranged on the cushion block 103. The lifting plate 400 is arranged on the rear mold fixing plate 102. When the molded product needs to be ejected, the lifting plate 400 rises under the action of the external driving member 701, so that the molded product is ejected by the ejector pin 401, completing the demoulding work; in addition, a second guide column 402 is provided on the lifting plate 400, and a second guide hole 307 corresponding to the second guide column 402 is provided on the rear template 300, and the second guide column 402 is slidably connected in the second guide hole 307. This arrangement can ensure the stability of the movement of the lifting plate 400 when the product is demoulded.
[0051] Please refer to Figure 4 In this embodiment, the plurality of ejector pins 401 include columnar ejector pins 401 and sheet ejector pins 401, wherein the columnar ejector pins 401 are used to lift the main body of the rear shell product, and the sheet ejector pins 401 are used to lift the ribs of the rear shell product. It is easy to understand that different parts of the rear shell product need to be contacted with ejector pins 401 of different shapes so that the product can be ejected more stably. In this embodiment, the sheet ejector pins 401 extend into the fourth shaping groove 305. When the molded product needs to be demolded, the sheet ejector pins 401 can make it easier to extract the ribs on the product from the fourth shaping groove 305, which is conducive to improving the convenience of demolding the molded product.
[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 rear shell mold of a sweeping machine mainframe, characterized in that: It includes a front mold assembly, a rear mold assembly, a first side core pulling mechanism, a second side core pulling mechanism and a third side core pulling mechanism; The front mold assembly comprises a front mold plate, and the front mold plate is provided with a rear shell concave mold; The rear mold assembly comprises a rear mold plate, on which a rear shell convex mold is provided, and the rear shell convex mold and the rear shell concave mold form a rear shell injection cavity; The number of the first side core pulling mechanisms is two, which are respectively arranged on both sides of the rear shell injection cavity, and the first side core pulling mechanisms include a first side core and a first oblique guide column, the first side core can be slidably arranged on the rear template, and the first side core extends into the rear shell injection cavity, 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 second side core pulling mechanism comprises a second side core and a second oblique guide column, the second side core is slidably arranged on the rear template, and the second side core extends into the injection molding cavity of the rear shell, the second oblique guide column is arranged on the front template, and the second side core is provided with a second oblique guide groove corresponding to the second oblique guide column; The third side core pulling mechanism includes a driving member and a third side core, the driving member is arranged on the rear template, the first end of the third side core is connected to the driving end of the driving member, and the second end of the first side core extends into the injection cavity of the rear shell.
2. The rear housing mold of the sweeping machine main body according to claim 1, characterized in that: A first clamping protrusion is provided at one end of the first side core close to the rear shell punch, the first clamping protrusion abuts against the rear shell punch, and the first clamping protrusion is used to form a clamping hole on the side of the rear shell product.
3. The rear housing mold of the sweeping machine main body according to claim 1, characterized in that: The rear shell concave mold is provided with a second clamping protrusion, the second clamping protrusion abuts against the rear shell convex mold, and the second clamping protrusion is used to form a clamping hole on the top surface of the rear shell product.
4. The rear housing mold of the sweeping machine main body according to claim 1, characterized in that: A first shaping portion is provided at one end of the second side core close to the rear shell punch, and a first shaping groove corresponding to the first shaping portion is provided on the rear shell punch. When the mold is closed, the first shaping portion extends into the first shaping groove.
5. The rear housing mold of the sweeping machine main body according to claim 1, characterized in that: A second shaping groove is provided at the bottom of the third side core, and a second shaping portion corresponding to the second shaping groove is provided on the rear shell punch. When the mold is closed, the second shaping groove accommodates the second shaping portion.
6. The rear housing mold of the sweeping machine main body according to claim 1, characterized in that: The third side core is provided with a third shaping portion at one end close to the rear shell punch, and the rear shell punch is provided with a third shaping groove corresponding to the third shaping portion, and the third shaping portion extends into the third shaping groove.
7. The rear housing mold of the sweeping machine main body according to claim 1, characterized in that: The third side core pulling mechanism further comprises a fixing member, wherein the fixing member is arranged at one end of the rear template, and the driving member is arranged on the fixing member.
8. The rear housing mold of the sweeping machine main body according to claim 1, characterized in that: The rear shell convex mold is provided with a fourth shaping groove, and the fourth shaping groove is communicated with the rear shell injection cavity.
9. The rear housing mold of the sweeping machine main body according to claim 1, characterized in that: The rear mold assembly also includes a lifting plate, which is slidably arranged relative to the rear mold plate, and a plurality of ejector pins are arranged on the lifting plate. The rear shell punch is provided with a plurality of pinholes, and the pinholes are connected to the rear shell injection cavity, and each of the ejector pins is slidably connected in each of the pinholes.
10. The rear housing mold of the sweeping machine main body according to claim 9, characterized in that: The plurality of ejector pins include columnar ejector pins and sheet ejector pins, wherein the columnar ejector pins are used to lift the main body of the rear shell product, and the sheet ejector pins are used to lift the rib part of the rear shell product.