Lower die of windscreen wiper

Abstract

The utility model belongs to the technical field of industrial dies, and discloses a windscreen wiper lower die which comprises a base, a plurality of supporting plates connected to the top of the base and distributed in parallel, a supporting table connected to the tops of the supporting plates, at least one lower die placed on the top of the supporting table, and an attaching assembly detachably installed on the supporting table. The extending direction of the supporting table is the same as the distribution direction of the supporting plates, and the attaching assembly can be attached to at least part of the two symmetrically-distributed side walls of the lower die in the direction perpendicular to the extending direction of the supporting table. Compared with the mode that the lower die, the supporting table and other structures are integrally formed, the lower die can be separated from the supporting table, so that different lower dies can be selected according to the requirement for machining the windscreen wipers or other products, and the cost needed for machining different windscreen wipers or other products is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial moulds, and in particular relates to a lower mould for a windshield wiper. Background Art

[0002] A windshield wiper is a device installed on the car windshield to remove rain, snow, dust and other debris to keep the driver's vision clear. Most of the wiper structure is hidden inside the car. Usually, the wiper's electric motor and transmission are installed inside the hood below the windshield, while the rubber or silicone scraper is located on the outside of the windshield to remove rain and debris.

[0003] The transmission device is responsible for transmitting the power of the electric motor to the wiper arm. It is usually composed of a series of gears, connecting rods and transmission rods, etc., and converts the rotational motion of the electric motor into a linear cleaning action through a complex mechanical structure. When manufacturing the transmission device, at least part of its structure can be made using a mold. For example, the transmission rod raw material can be punched and grooved by combining an upper mold with a lower mold. The mold is generally used in conjunction with the finished product. For example, for the lower mold, it generally includes a base, a lower support plate, and a molding plate for cooperating with the structure in the upper mold. The molding plate is generally provided with grooves, holes, etc. For two different products, even if there are many similarities in shape between the two, a new molding plate needs to be replaced for processing subsequent products. If the molding plate is connected to the lower support plate, the lower support plate also needs to be replaced, resulting in an increase in processing costs. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a wiper lower mold to solve the problems in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides a wiper lower mold, including a base, a plurality of support plates connected to the top of the base and distributed in parallel, a support platform connected to the top of each support plate, at least one lower mold placed on the top of the support platform, and a fitting component detachably mounted on the support platform, wherein the extension direction of the support platform is the same as the distribution direction of each support plate, the fitting component can at least be fitted to at least part of the two side walls of the lower mold that are symmetrically distributed along a direction perpendicular to the extension direction of the support platform, the fitting component is used to fix the lower mold, and at least part of the fitting component can be moved relative to the support platform.

[0006] With such a design, the lower mold can be separated from the support platform so that different lower molds can be selected according to the requirements for processing the wiper blades or other products, thereby reducing the cost required for processing different wiper blades or other products.

[0007] Preferably, the bonding component includes two first bonding mechanisms, which are respectively placed on both sides of the lower mold along a direction perpendicular to the extension direction of the support platform. The first bonding mechanisms each include a plurality of first bonding parts that are detachably mounted on the support platform and distributed in parallel along the extension direction of the support platform. The first bonding parts can be moved relative to the support platform along the extension direction of the support platform, and the first bonding parts are used to limit the lower mold along the direction perpendicular to the extension direction of the support platform.

[0008] Through such a design, the fitting structure can also cooperate with the support platform to hinder the movement of the lower mold along the extension direction of the support platform through friction.

[0009] Preferably, along a direction perpendicular to the extension direction of the support platform, both ends of the support platform are provided with fixing grooves corresponding to the first bonding piece and with at least one opening facing upward, the fixing grooves are all penetrated through the support platform along the extension direction of the support platform, and the lower end of each first bonding piece is placed in an adjacent fixing groove.

[0010] Through such a design, the first fitting member and the supporting platform can be separately arranged.

[0011] Preferably, the longitudinal section of each fixing groove and the longitudinal section of the lower end of each first fitting member are both in an inverted T shape.

[0012] Such a design can improve the stability of the connection between the first fitting member and the support platform while facilitating the rapid separation of the two.

[0013] Preferably, the bonding component also includes two second bonding mechanisms, which are respectively placed at both ends of the support platform along the extension direction of the support platform. The second bonding mechanisms each include a plurality of second bonding parts which are detachably mounted on the support platform and distributed in parallel along a direction perpendicular to the extension direction of the support platform. The second bonding parts can be moved relative to the support platform in a direction perpendicular to the extension direction of the support platform, and the second bonding parts are used to limit the lower mold along the extension direction of the support platform.

[0014] Such a design further increases the difficulty of the lower mold moving when it is not connected to the support platform.

[0015] Preferably, the laminating assembly further comprises at least one third laminating mechanism, the third laminating mechanism comprising a support shaft, a plurality of third laminating members sleeved on the outside of the support shaft and distributed in parallel along the extension direction of the support shaft, the third laminating members can rotate around the axis of the support shaft, and the third laminating mechanism is used to cooperate with the second laminating mechanism to limit the lower mold along the extension direction of the support platform;

[0016] The third bonding mechanism has a bonding state. When the third bonding mechanism is in the bonding state, at least one third bonding piece in the third bonding mechanism is bonded to the support platform.

[0017] Through such a design, the problem that gaps are easily formed between the lower molds and between the lower mold and the second bonding piece can be solved to a certain extent.

[0018] Preferably, a through hole extending along the extension direction of the support platform and for the waste to pass through is provided on the support platform, and the through hole is provided in the support platform along the vertical direction.

[0019] This design can solve the problem that the support table will hinder the punching process.

[0020] Preferably, at least one side wall of each first fitting is connected to a support member, the top surface of the support member is located at a height lower than the top surface of the first fitting member, and the support member is used to separate the lower mold from the support platform.

[0021] This design provides another solution to the problem that the support table may hinder the punching process in some cases.

[0022] The beneficial effects of the present invention are as follows: the lower mold in the present invention can be separated from the support platform so that different lower molds can be selected according to the requirements for processing wipers or other products, thereby reducing the cost required for processing different wipers or other products; in addition, a plurality of lower molds can be provided in the present invention. When the lower mold needs to be replaced for processing a new product, if the new product has similarities with the old product, such as the same holes are provided in the same parts of the two, only part of the lower mold can be replaced according to the actual situation, thereby further reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the lower mold of the wiper according to an embodiment of the utility model;

[0025] Figure 2 yes Figure 1 Side view of the local structure;

[0026] Figure 3 It is a structural schematic diagram of a third laminating mechanism in one state of an embodiment of the utility model;

[0027] Figure 4 Schematic diagram of the positional relationship between the first fitting member and the supporting member in an embodiment of the utility model;

[0028] Figure 5This is a schematic diagram of the combined structure of the laminating component and the supporting member of an embodiment of the utility model;

[0029] Figure 6 This is a schematic diagram of the combined structure of the first laminating mechanism and the supporting member of an embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the support platform of the embodiment of the utility model when no perforation is provided;

[0031] Figure 8 It is a schematic diagram of the structure of the bonding component of an embodiment of the utility model.

[0032] The reference numerals are as follows:

[0033] 1. Base;

[0034] 2. Pallet;

[0035] 3. Support platform; 31. Fixing groove; 32. Perforation;

[0036] 4. Lower mold;

[0037] 5. Laminating assembly; 51. First laminating mechanism; 511. First laminating piece; 52. Second laminating mechanism; 521. Second laminating piece; 53. Third laminating mechanism; 531. Support shaft; 532. Third laminating piece;

[0038] 6. Support parts.

[0039] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0040] 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 of 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.

[0041] Example 1

[0042] like Figures 1 to 8As shown, the utility model provides a wiper lower mold, including a base 1, a plurality of support plates 2 connected to the top of the base 1 and distributed in parallel, a support platform 3 connected to the top of each support plate 2, at least one lower mold 4 placed on the top of the support platform 3, and a fitting component 5 detachably mounted on the support platform 3, wherein the extension direction of the support platform 3 is the same as the distribution direction of each support plate 2, the fitting component 5 can at least be fitted to at least part of the two side walls of the lower mold 4 that are symmetrically distributed along a direction perpendicular to the extension direction of the support platform 3, the fitting component 5 is used to fix the lower mold 4, and at least part of the fitting component 5 can be moved relative to the support platform 3.

[0043] Along the extension direction of the support platform 3 may also be expressed as along the length direction of the support platform 3 , and along the direction perpendicular to the extension direction of the support platform 3 may also be expressed as along the width direction of the support platform 3 .

[0044] During actual processing, the utility model is used as a lower mold device in conjunction with an upper mold device. An example is given as follows: in some cases, the lower mold 4 is provided in plurality, and each of the lower molds 4 is provided with a molding groove of different shapes. After the raw material is placed on the top of the lower mold 4, the upper mold device moves downward. The upper mold device may have a built-in or external driving source such as a hydraulic cylinder. The upper mold device also includes a pressing part corresponding to the lower mold 4. Part of the raw material is pressed into the molding groove through the pressing part, and the raw material can be stamped to promote the formation of the finished wiper product.

[0045] Compared with the one-piece molding method of the lower mold 4, the support platform 3 and other structures, in the utility model, the lower mold 4 can be separated from the support platform 3 so that different lower molds 4 can be selected according to the requirements for processing the wiper or other products, thereby reducing the cost required for processing different wipers or other products; in addition, through the arrangement of the bonding component 5, the bonding component 5 can at least be bonded to at least part of the two side walls of the lower mold 4 that are symmetrically distributed in a direction perpendicular to the extension direction of the support platform 3, thereby achieving the clamping and positioning of the lower mold 4 to a certain extent, avoiding the lower mold 4 from sliding easily due to not being connected to the support platform 3. Based on this, the manufacturing cost of the lower mold 4 itself can also be reduced. For example, when the lower mold 4 is an iron block, the mass of the lower mold 4 can be appropriately reduced.

[0046] Example 2

[0047] In this embodiment, the bonding component 5 includes two first bonding mechanisms 51, and the two first bonding mechanisms 51 are respectively placed on both sides of the lower mold 4 along a direction perpendicular to the extension direction of the support table 3. The first bonding mechanisms 51 each include a plurality of first bonding parts 511 that are detachably mounted on the support table 3 and distributed in parallel along the extension direction of the support table 3. The first bonding parts 511 can be moved relative to the support table 3 along the extension direction of the support table 3. The first bonding parts 511 are used to limit the lower mold 4 along a direction perpendicular to the extension direction of the support table 3.

[0048] The present embodiment expands the bonding component 5, where two first bonding parts 511 respectively located on both sides of the lower mold 4 are set as a group of bonding structures. For a single lower mold 4, one or more groups of bonding mechanisms can be selected to perform bonding limiting operations according to different situations. The bonding structure can limit the movement of the lower mold 4 along a direction perpendicular to the extension direction of the support platform 3. The bonding structure can also cooperate with the support platform 3 to hinder the movement of the lower mold 4 along the extension direction of the support platform 3 through friction.

[0049] The first fitting member 511 can be separated from the support platform 3, and the two can be detachably connected by means of threaded connection, snap connection, etc., which is not specifically limited here.

[0050] A single first bonding mechanism 51 includes a plurality of first bonding members 511 . Compared with setting a single longer first bonding member 511 , the former method can achieve bonding restriction of a plurality of lower molds 4 while reducing the cost of manufacturing the bonding assembly 5 .

[0051] Example 3

[0052] In this embodiment, along a direction perpendicular to the extension direction of the support platform 3, both ends of the support platform 3 are provided with fixing grooves 31 corresponding to the first fitting member 511 and with at least one opening facing upward. The fixing grooves 31 are all penetrated through the support platform 3 along the extension direction of the support platform 3, and the lower end portion of each first fitting member 511 is placed in an adjacent fixing groove 31.

[0053] This embodiment expands the detachable connection method between the first fitting member 511 and the support platform 3. When the two are detachably connected, the lower end portion of the first fitting member 511 is located in the fixing groove 31, that is, the first fitting member 511 is detachably connected to the support platform 3 through the fixing groove 31.

[0054] Example 4

[0055] In this embodiment, the longitudinal section of each fixing groove 31 and the longitudinal section of the lower end of each first fitting member 511 are both in an inverted T shape.

[0056] In the above, the first fitting member 511 and the support platform 3 can be regarded as realizing a detachable connection between the two by means of a snap-fitting method. The present embodiment further expands this connection method. By setting the longitudinal section of each fixing groove 31 and the longitudinal section of the lower end of each first fitting member 511 to be an inverted T-shape, the stability of the connection method between the first fitting member 511 and the support platform 3 can be improved while providing convenience for the rapid separation between the two.

[0057] Example 5

[0058] In this embodiment, the bonding component 5 also includes two second bonding mechanisms 52. Along the extension direction of the support platform 3, the two second bonding mechanisms 52 are respectively placed at the two ends of the support platform 3. The second bonding mechanisms 52 each include a plurality of second bonding parts 521 that are detachably mounted on the support platform 3 and distributed in parallel along a direction perpendicular to the extension direction of the support platform 3. The second bonding parts 521 can be moved relative to the support platform 3 along a direction perpendicular to the extension direction of the support platform 3. The second bonding parts 521 are used to limit the lower mold 4 along the extension direction of the support platform 3.

[0059] This embodiment continues to expand the laminating component 5 , and the second laminating member 521 can limit the laminating position of the lower mold 4 in the extending direction of the support platform 3 , further increasing the difficulty of the lower mold 4 moving when it is not connected to the support platform 3 .

[0060] It should be noted that the detachable connection method between the second fitting member 521 and the support platform 3 may refer to the detachable connection method between the first fitting member 511 and the support platform 3 described above.

[0061] Example 6

[0062] In this embodiment, the laminating assembly 5 further includes at least one third laminating mechanism 53, which includes a support shaft 531, a plurality of third laminating members 532 sleeved on the outside of the support shaft 531 and distributed in parallel along the extension direction of the support shaft 531, and the third laminating members 532 can rotate around the axis of the support shaft 531. The third laminating mechanism 53 is used to cooperate with the second laminating mechanism 52 to limit the lower mold 4 along the extension direction of the support platform 3;

[0063] The third bonding mechanism 53 has a bonding state. When the third bonding mechanism 53 is in the bonding state, at least one third bonding piece 532 in the third bonding mechanism 53 is bonded to the support platform 3 .

[0064] When there are multiple lower molds 4, they are arranged along the extension direction of the support platform 3. In some cases, due to the requirements for processing wipers or other products, there will be gaps between the lower molds 4 and there will be gaps between the lower molds 4 and the second bonding member 521. The third bonding mechanism 53 can at least solve this problem to a certain extent. Here, the gaps between the lower molds 4 are used to illustrate, as follows: before placing the third bonding mechanism 53, the number of third bonding members 532 to be used must be selected according to the gaps between the lower molds 4, and the third bonding members 532 that are not needed are rotated to one side. After placing the third bonding mechanism 53, at least part of the selected third bonding members 532 are bonded to the lower mold 4 and the support platform 3.

[0065] The thickness and quantity of the third fitting member 532 and the length of the support shaft 531 can be adjusted according to actual conditions. The thinner the thickness of the third fitting member 532 is, the more applicable it is.

[0066] When the third laminating mechanism 53 is not in the laminating state, it can be placed on the top of the base 1 or a collection box can be set to load the third laminating mechanism 53.

[0067] The third bonding mechanism 53 can be set to be single or multiple, depending on the actual situation. For example, when the lower mold 4 is single, one end of it can contact the second bonding mechanism 52 while the other end cannot contact the second bonding mechanism 52. At this time, a single third bonding mechanism 53 can be set to be engaged between the end of the lower mold 4 that does not contact the second bonding mechanism 52 and the second bonding mechanism 52; when there are three lower molds 4 and they are all separately set, the third bonding mechanism 53 can be placed between the lower molds 4.

[0068] Example 7

[0069] In this embodiment, a through hole 32 extending along the extension direction of the support platform 3 and for the waste to pass through is formed on the support platform 3 , and the through hole 32 is formed in the support platform 3 along the vertical direction.

[0070] When punching of the raw material is required, holes are provided on the lower die 4. Since the lower die 4 is attached to the support platform 3, the support platform 3 will hinder the punching process. The setting of the perforation 32 can solve this problem. The size of the perforation 32 can be adjusted according to actual conditions. At the same time, the size, position, quantity, etc. of the support plate 2 can also be adjusted according to actual conditions, and no specific limitation is made here.

[0071] Example 8

[0072] In this embodiment, at least one side wall of each first fitting member 511 is connected to a support member 6 , the top surface of the support member 6 is located at a height lower than the top surface of the first fitting member 511 , and the support member 6 is used to separate the lower mold 4 from the support platform 3 .

[0073] Regarding the problem that the support platform 3 may hinder the punching process in some cases, this embodiment provides another solution. Through the setting of the support member 6, when the support member 6 is attached to the bottom of the lower mold 4, the support platform 3 and the lower mold 4 remain separated, and because the height of the top surface of the support member 6 is lower than the height of the top surface of the first attaching member 511, the first attaching member 511 can still limit the lower mold 4.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0075] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. The lower mold of the wiper blade is characterized by: The invention comprises a base (1), a plurality of support plates (2) connected to the top of the base (1) and distributed in parallel, a support platform (3) connected to the top of each support plate (2), at least one lower mold (4) placed on the top of the support platform (3), and a fitting component (5) detachably mounted on the support platform (3), wherein the length direction of the support platform (3) is the same as the distribution direction of each support plate (2), and along the width direction of the support platform (3), the fitting component (5) can be fitted to the two side walls of the lower mold (4), the fitting component (5) is used to fix the lower mold (4), and the fitting component (5) can move relative to the support platform (3).

2. The wiper blade lower mold according to claim 1, characterized in that: The laminating assembly (5) comprises two first laminating mechanisms (51), which are respectively arranged on two sides of the lower mold (4) along the width direction of the support platform (3). The first laminating mechanisms (51) each comprise a plurality of first laminating parts (511) which are detachably mounted on the support platform (3) and are distributed in parallel along the length direction of the support platform (3). The first laminating parts (511) can move relative to the support platform (3) along the length direction of the support platform (3). The first laminating parts (511) are used to limit the lower mold (4) along the width direction of the support platform (3).

3. The wiper blade lower mold according to claim 2, characterized in that: Along the width direction of the support platform (3), both ends of the support platform (3) are provided with fixing grooves (31) corresponding to the first fitting pieces (511) and with at least one opening facing upwards. The fixing grooves (31) are all arranged along the length direction of the support platform (3) and penetrate the support platform (3). The lower end of each first fitting piece (511) is placed in an adjacent fixing groove (31).

4. The wiper blade lower mold according to claim 3, characterized in that: The longitudinal cross-section of each fixing groove (31) and the longitudinal cross-section of the lower end of each first fitting member (511) are both in an inverted T shape.

5. The wiper blade lower mold according to claim 2, characterized in that: The laminating assembly (5) further comprises two second laminating mechanisms (52), which are respectively arranged at two ends of the support platform (3) along the length direction of the support platform (3), and each of the second laminating mechanisms (52) comprises a plurality of second laminating parts (521) which are detachably mounted on the support platform (3) and are distributed in parallel along the width direction of the support platform (3). The second laminating parts (521) can move relative to the support platform (3) along the width direction of the support platform (3), and the second laminating parts (521) are used to limit the lower mold (4) along the length direction of the support platform (3).

6. The wiper blade lower mold according to claim 5, characterized in that: The laminating assembly (5) further comprises at least one third laminating mechanism (53), the third laminating mechanism (53) comprising a support shaft (531), a plurality of third laminating parts (532) sleeved on the outside of the support shaft (531) and distributed in parallel along the extension direction of the support shaft (531), the third laminating parts (532) being rotatable around the axis of the support shaft (531), and the third laminating mechanism (53) being used to cooperate with the second laminating mechanism (52) to limit the lower mold (4) along the length direction of the support platform (3); The third laminating mechanism (53) has a laminating state. When the third laminating mechanism (53) is in the laminating state, at least one third laminating member (532) in the third laminating mechanism (53) is arranged in lamination to the support platform (3).

7. The wiper blade lower mold according to claim 2, characterized in that: The support platform (3) is provided with a through hole (32) extending along the length direction of the support platform (3) and for waste to pass through, and the through hole (32) is formed in the support platform (3) in a vertical direction.

8. The wiper blade lower mold according to claim 2 or 7, characterized in that: At least one side wall of each first bonding member (511) is connected to a support member (6), the top surface of the support member (6) is located at a height lower than the top surface of the first bonding member (511), and the support member (6) is used to separate the lower mold (4) and the support platform (3).

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