Frame body, processing box and frame body mold

Abstract

The utility model provides a frame body, a processing box and a frame body mould, the frame body comprises a shell and a bracket which are integrally formed by injection molding, the bracket is positioned at one longitudinal end of the shell and is provided with a supporting bulge which protrudes towards the inner side of the shell along the longitudinal direction of the shell; the support comprises a surrounding part surrounding the supporting protrusion, and the surrounding part is arranged to be of a solid structure without auxiliary holes. The shell comprises a peripheral portion opposite to the supporting protrusion in the transverse direction and the vertical direction, the peripheral portion is of a solid structure without auxiliary holes, and a bending-resistant reinforcing structure is arranged on the inner wall face of the shell. The processing box comprises the frame body. The frame body mold is used for integrally injection-molding a frame body and comprises an upper mold, a lower mold and a pitched roof mold, the pitched roof mold is provided with a sliding rod part and a mold head part, and the molding surface of the mold head part is used for molding at least one part of the peripheral surface of the supporting bulge; the sliding rod part moves relative to the lower die in the inclined direction forming an included angle with the vertical direction. According to the utility model, the structural strength is improved on the premise of realizing integral injection molding of the frame body.

Description

Technical Field

[0001] This utility model relates to the field of printing consumables technology, specifically to a frame, a processing box, and a frame mold for integral injection molding without sacrificing structural strength. Background Technology

[0002] The printing consumables handling box includes a frame that serves as the main body of the waste toner container. The frame includes a housing and a bracket for supporting the photosensitive element. The bracket has a cylindrical support protrusion that extends longitudinally into the housing. Additionally, the bracket has a longitudinally penetrating isolation hole for inserting an isolation element.

[0003] If the shell and support are injection molded as a single unit, the number of parts can be reduced. However, some structures of the frame are vertically opposed to the support protrusions, which hinders the demolding of the mold that forms the support protrusions.

[0004] Chinese utility model patent application CN108333900A discloses a waste powder hopper and a processing box. The frame of the waste powder hopper has through holes for demolding on the circumference of the support protrusion. Through these process through holes opened in different directions, the mold can extend into the frame along the radial or axial direction of the support protrusion. During injection molding, the outer circumferential contour of the support protrusion is formed through these inserted molds. After injection molding, the mold is also removed through these process through holes, so that the support can be integrally injection molded with the shell.

[0005] While the existing bracket with process through holes solves the problem of hindering demolding and achieves integral injection molding of the shell and bracket, the presence of one or more process holes near the support protrusions of the bracket for demolding inevitably leads to a decrease in the integrity and strength of the thin-walled shell-like frame structure. When the photosensitive component is mounted on the bracket and rotates, it will cause inappropriate vibration of the bracket, which in turn leads to a decrease in the imaging quality of the processing box. In addition, its thin-walled shell structure is also prone to longitudinal and / or transverse bending and twisting deformation, which will also lead to a decrease in imaging quality. Utility Model Content

[0006] The primary objective of this invention is to provide a frame that enhances structural integrity and strength.

[0007] The second objective of this utility model is to provide a processing box that includes the frame of this utility model.

[0008] The third objective of this utility model is to provide a frame mold for forming the frame of this utility model.

[0009] The first objective of this utility model is to provide a frame comprising an integrally injection-molded shell and a support. The support is located at one end of the longitudinal direction of the shell and has a support protrusion protruding inward along the longitudinal direction of the shell. The support includes a surrounding portion that surrounds the support protrusion, and the surrounding portion is a solid structure without process holes. The shell includes an outer peripheral portion that is opposite to the support protrusion in the transverse and vertical directions, and the outer peripheral portion is a solid structure without process holes. The inner wall surface of the shell is provided with a bending-resistant reinforcing structure.

[0010] As can be seen from the above solution, while achieving the same integrated molding of the shell and support as the existing technology CN108333900A, the frame of this utility model creatively eliminates the process holes on the surrounding part and the outer periphery, thereby improving the strength of the support and effectively preventing inappropriate vibration of the support under external force. It should be noted that the process hole referred to in this utility model is a support protrusion protruding towards the inside of the shell on the molded support. It is a hole that must be provided during the integrated molding injection molding process for demolding, allowing the mold to exit through the process hole. This process hole has no functional function when the frame is in operation, such as for installing parts. Providing integrated injection-molded or retrofitted reinforcing ribs or reinforcing pads on the inner wall of the shell can effectively improve the frame's resistance to bending deformation, similarly preventing inappropriate vibration of the support under external force.

[0011] A further design includes an isolation hole on the bracket, with the surrounding portion located within the annular area between the support protrusion and the isolation hole.

[0012] As can be seen from the above, the isolation hole is a functional hole used to install the isolation component. For a frame that requires the installation of the isolation component, this annular area, as the area near the support protrusion on the bracket, would further weaken the strength of the main wall of the bracket if process holes were provided. After the support protrusion and the photosensitive component are in contact, the process holes would also affect the working accuracy of the photosensitive component. Therefore, this utility model uses a solid structure without process holes in this annular area, which ensures the connection strength between the bracket and the shell while maximizing the connection strength between the support protrusion and the main wall of the bracket.

[0013] A further design involves a housing with an inner wall and a support including a main wall. The inner wall, the main wall, and the outer periphery form a clearance groove. From a transverse perspective, the opening of the clearance groove faces the support protrusion.

[0014] As can be seen above, by setting an avoidance groove and making its opening directly opposite the support protrusion in the lateral direction, the mold used to form the support protrusion can be removed from the opening of the avoidance groove during the one-piece injection molding of the frame.

[0015] A further embodiment is that the inner side of the main wall includes a first surface and a second surface; in the longitudinal direction, the second surface is closer to the clearance groove than the first surface, and the second surface is the inner surface of the clearance groove; in the longitudinal direction, there is a gap between the first surface and the second surface, and at the other end of the second surface that is far away from the first surface in the longitudinal direction of the shell, a part of the support protrusion protrudes from the first surface, and another part of the support protrusion protrudes from the second surface.

[0016] As can be seen from the above, the inner side of the existing bracket includes a first surface and a second surface spaced longitudinally. The support protrusion protrudes entirely from the first surface, which is closer to the inner side of the shell in the longitudinal direction. The aforementioned longitudinal plate, which has not yet been removed, is also connected to the first surface. This makes the inner wall of the frame face the first surface of the bracket, and the two are relatively close. Even if the aforementioned longitudinal plate is removed to form a groove and a clearance groove, the clearance groove and its opening are still relatively narrow, limiting the size of the mold that can be ejected from the groove, causing problems with the mold strength. Therefore, this utility model adjusts the position of the step connecting the first surface and the second surface to the support protrusion. This makes the inner wall of the frame face the second surface of the bracket, and the clearance groove formed between them is relatively widened, thereby improving the strength of the mold.

[0017] A further proposed solution includes a clearance space. From a longitudinal perspective, the clearance space and the clearance groove are respectively located on both sides of the support protrusion; from a transverse perspective, the support protrusion is located within the clearance space.

[0018] As can be seen from the above, the prior art has a relatively large third through hole, or process hole, that extends vertically through the shell at a position communicating with the outer periphery of this utility model for demolding. This third through hole allows a portion of the lower mold to form a support protrusion from the inner side of the frame, and also facilitates vertical demolding of this portion. If this third through hole is simply a notch without obstructing the support protrusion, the lower mold can form the lower semicircular portion of the support protrusion without hindering demolding. However, the presence of this large notch results in a severely insufficient connection strength between the shell and the frame. Therefore, the prior art does not use a notch but instead employs a third through hole. Thus, on one side of the third through hole, the frame also has a reinforcing connection between the shell and the frame. However, the reinforcing connection obstructs the mold release of the support protrusion both laterally and vertically. Therefore, existing frames require a first through-hole extending longitudinally through the main wall of the support protrusion on its outer periphery. The portion of the support protrusion that cannot be molded due to the reinforcing connection being obstructed is formed by a mold extending longitudinally into the inner side of the frame through the first through-hole. This mold also releases longitudinally through the first through-hole. This invention removes the reinforcing connection from the existing frame, creating a clearance space. A portion of the outer periphery of the support protrusion can then enter into place through this clearance space using a second mold, thereby further optimizing and simplifying the mold structure, while also optimizing the frame structure and reducing material usage.

[0019] The processing box provided by the second objective of this utility model includes a frame, which is the frame described above.

[0020] The third objective of this utility model is to provide a frame mold for integral injection molding of a frame, including an upper mold and a lower mold, wherein the upper mold is demolded vertically relative to the lower mold; the frame is the aforementioned frame; it also includes an inclined ejector mold, which has a sliding rod portion and a mold head, wherein the molding surface of the mold head is used to mold at least a portion of the outer peripheral surface of the supporting protrusion; the sliding rod portion moves relative to the lower mold in an inclined direction having an angle with the vertical direction.

[0021] As can be seen from the above solution, the frame mold of this utility model is improved to ensure that the structure near the supporting protrusion can maintain a solid structure without process holes as much as possible. By setting up the inclined ejector mold, at least a portion of the outer peripheral surface of the supporting protrusion can be formed from the inside of the frame through the inclined ejector mold. After the longitudinal mold and the upper mold are demolded, as the inclined ejector mold lifts the frame upwards and gradually separates it from the lower mold, the mold head of the inclined ejector mold moves relative to the supporting protrusion longitudinally and / or laterally to detach from the supporting protrusion, thus achieving demolding. The frame mold of this utility model forms the supporting protrusion on the inside of the frame through the inclined ejector mold and performs demolding on the inside of the frame through the inclined ejector mold, so that the frame support and the area near the support no longer need to have process holes for demolding, forming a solid structure without process holes and improving structural strength.

[0022] A further proposed solution is to set the angle between the sliding rod and the vertical direction to be between 8 and 15 degrees.

[0023] As can be seen from the above, the movement direction of the inclined ejector mold needs to consider: First, whether the inclined ejector mold can smoothly and easily detach from the lower mold as the frame moves upward; second, how to minimize the impact of adding the inclined ejector mold on the changes in the dimensions of the frame mold. Specifically, if the angle between the inclined ejector mold and the vertical is large, although demolding can be completed quickly, the smoothness of sliding will decrease, and the planar dimensions of the frame mold will also need to be adjusted. If the angle between the inclined ejector mold and the vertical is too small, although the inclined ejector mold can move smoothly during the upward detachment of the frame from the lower mold, the insufficient horizontal movement of the inclined ejector mold will increase the lifting stroke of the inclined ejector mold during demolding. In summary, the range of the angle between the sliding rod part of the inclined ejector mold and the vertical is 8 to 15 degrees, which satisfies the requirements of smooth sliding during demolding, complete detachment of the inclined ejector mold from the support protrusion when the frame detaches from the lower mold, and has the advantage of not requiring any changes to the planar dimensions of the frame mold.

[0024] A further solution includes a second mold; the centerline of the slide bar is in a plane perpendicular to the longitudinal direction, the forming surface of the mold head is used to form the first part of the outer peripheral surface of the support protrusion, and the forming surface of the second mold is used to form the second part of the outer peripheral surface of the support protrusion.

[0025] As can be seen from the above, when the center line of the slide bar cannot be fully formed on the outer periphery of the support protrusion by the inclined top mold alone, a portion of the outer periphery of the support protrusion can be formed by the inclined top mold. The remaining portion of the outer periphery of the support protrusion can be formed by the second mold, or by the structure of the second mold and other molds, and then successfully demolded.

[0026] Another further solution is that the centerline of the slide bar is in a plane perpendicular to the transverse direction, and the forming surface of the mold head is used to form the outer peripheral surface of the support protrusion.

[0027] As can be seen from the above, with the center line of the slide bar set in a plane perpendicular to the horizontal direction, the outer peripheral surface of the support protrusion can be formed by an annular forming surface on the inclined die. This setting can better ensure the accuracy of the outer peripheral surface of the support protrusion. Attached Figure Description

[0028] Figure 1 This is a structural diagram of the first embodiment of the frame of this utility model.

[0029] Figure 2 This is a partial enlarged view of the first embodiment of the frame of this utility model.

[0030] Figure 3 This is a partial enlarged view from another perspective of the first embodiment of the frame of this utility model.

[0031] Figure 4 This is a front view of the bracket end of the first embodiment of the frame of this utility model.

[0032] Figure 5 This is a perspective view of the first embodiment of the frame mold of this utility model.

[0033] Figure 6 for Figure 5 The structure explodes diagram.

[0034] Figure 7 This is an exploded view of the lower mold and frame of the first embodiment of the frame mold of this utility model.

[0035] Figure 8 for Figure 7 A magnified view of part A in the image.

[0036] Figure 9 This is a structural diagram of the inclined top mold, the second mold, and the third mold in the first embodiment of the frame mold of this utility model.

[0037] Figure 10 This is a schematic diagram showing the cooperation relationship between the inclined top mold, the second mold, and the third mold in the first embodiment of the frame mold of this utility model during the forming of the supporting protrusion.

[0038] Figure 11This is a schematic diagram illustrating the principle of demolding using the inclined top mold in the first embodiment of the frame mold of this utility model.

[0039] Figure 12 This is a partial enlarged view of the support end of the second embodiment of the frame of this utility model.

[0040] Figure 13 This is a structural diagram of the second embodiment of the frame mold of this utility model.

[0041] Figure 14 This is a structural diagram of the inclined top mold in the second embodiment of the frame mold of this utility model.

[0042] Figure 15 This is a structural diagram of the inclined top mold and the bracket in the second embodiment of the frame mold of this utility model.

[0043] Figure 16 This is a schematic diagram illustrating the demolding principle of the inclined top mold in the second embodiment of the frame mold of this utility model. Detailed Implementation

[0044] For clarity, most of the accompanying drawings establish a spatial rectangular coordinate system with a unified orientation of the frame's position in the mold. In this coordinate system, the x-axis represents the frame's longitudinal direction, the y-axis represents the frame's transverse direction, and the z-axis represents the frame's vertical direction. In the accompanying drawings related to the frame mold, the demolding of the upper and lower molds occurs vertically, the demolding of the two longitudinal molds occurs longitudinally, and the demolding of the two transverse molds occurs transversely. Furthermore, the XYZ coordinate system is a right-handed coordinate system.

[0045] First embodiment of frame, first embodiment of processing box, and first embodiment of frame mold

[0046] See Figure 1 In this embodiment, the frame 1 includes an integrally injection-molded shell 10 and a support 11. The support 11 is located at the right end of the longitudinal direction of the shell 1 and includes a main wall 12 connected to the shell 10. The main wall 12 extends along a plane perpendicular to the x-axis. Longitudinally, the inner side of the main wall 12 faces the inner side of the shell 10. The inner side of the main wall 12 is the side facing the positive x-axis as shown in the figure. The support protrusion 13 extends from the inner side of the main wall 12 in the positive x-axis direction. See also Figure 7 In this embodiment, the housing 10 of the frame 1 includes an outer surface plane 1001 extending longitudinally as the length direction, and the normal of the outer surface plane 1001 is vertical.

[0047] Combination Figure 3 In this embodiment, the support protrusion 13 is a cylindrical structure with a notch 133. The inner circumference of the support protrusion 13 is provided with a mounting through hole 130 extending along the x-axis. The support protrusion 13 is used to support the photosensitive element, which is a photosensitive drum assembly. The mounting through hole 130 is used to mount the end of the photosensitive drum assembly.

[0048] See Figure 2 The main wall 12 of the bracket 11 is also provided with an isolation hole 129. The isolation hole 129 extends through the inner and outer sides of the main wall 12 along the x-axis direction. The isolation hole 129 is used to allow the isolation member to extend from the outer side to the inner side of the main wall 12 so that the rod of the isolation member can reach between the photosensitive drum and the charging roller to isolate the two.

[0049] The main objective of this utility model's frame is to ensure that the housing 10 and the support 11 can be integrally injection molded, while also ensuring that the support 11 and its surrounding structure are solid structures without process holes. This ensures that the frame does not sacrifice structural strength due to integral injection molding, thereby affecting image quality. See also... Figure 1 and Figure 3 The support protrusion 13 protrudes along the x-axis from the inner side of the main wall 12 of the bracket 11. The frame 1 includes an outer peripheral portion 1102 opposite to the outer peripheral surface of the support protrusion 13. The outer peripheral portion 1102 is shown below. Figure 3 The part is indicated by a dotted and dashed line, and the outer periphery 1102 is set as a solid structure without process holes.

[0050] See Figure 1 and Figure 4 The support 11 includes a surrounding portion 1101 located between the inner peripheral surface of the support protrusion 13 and the proximal point of the isolation hole 129, the surrounding portion 1101 is described in detail below. Figure 4 The circular portion is shown by a dotted and dashed line, and the surrounding portion 1101 is a solid structure without process holes. The inner circumferential surface of the support protrusion 13 is the inner wall surface of the mounting through hole 130, and the proximal point of the isolation hole 129 is the position on the isolation hole 129 closest to the center of the mounting through hole 130.

[0051] See Figures 1 to 3 , Figure 1 The parting line 100 shown is the parting surface between the upper and lower molds, and it passes through the center line of the support protrusion 13. As an inwardly convex structure, the outer periphery 1102 blocks the support protrusion 13 from the positive z-axis and positive y-axis directions. Therefore, the outer periphery 1102 will prevent the molding die of the support protrusion 13 from being demolded along the x-axis or positive y-axis direction.

[0052] For this reason, see Figure 5 and Figure 6 This utility model designs a frame mold 9 for the molding and demolding of the support protrusion 13. In this example, the frame mold 9 is used to injection mold two frames 1 at one time. The two frames 1 are molded in the frame mold 9 in a shape that is opposite in the X-axis direction.

[0053] The frame mold 9 includes a lower mold 91 and an upper mold 92 that are separated and joined together along the z-axis direction. The upper mold 92 is demolded vertically relative to the lower mold 91. The frame mold 9 also includes two longitudinal molds 93 disposed on opposite sides in the x-axis direction and two transverse molds 94 disposed on opposite sides in the y-axis direction.

[0054] See Figures 7 to 9 After the two longitudinal molds 93 are demolded away from the frame 1 along the x-axis, the two transverse molds 94 are demolded away from the frame 1 along the y-axis, and the upper mold 92 is demolded relative to the lower mold 91 along the z-axis, the frame 1 is gradually detached from the lower mold 91 as it is being lifted upward along the z-axis by the inclined top mold 95. At the same time, it is also detached laterally from the mold head 952 relative to the inclined top mold 95. That is, the demolding process of the support protrusion 13 relative to the inclined top mold is completed.

[0055] See Figures 7 to 9 and combined Figure 3 The frame mold 9 also includes a second mold 96 and a third mold 97. The inclined top mold 95, the second mold 96, the third mold 97 and the lower mold 91 together complete the forming of the outer peripheral surface of the supporting protrusion 13 on the inner side of the frame 1.

[0056] like Figure 3 As shown, the support protrusion 13 includes a first portion 131, a second portion 132, and other portions. Additionally, the support protrusion 13 also forms the aforementioned notch 133. The first portion 131 and the second portion 132 are joined circumferentially to the support protrusion 13. The first portion of the outer peripheral surface of the support protrusion 13 on the first portion 131 is formed by an inclined die 95. The second portion of the outer peripheral surface of the support protrusion 13 on the second portion 132 is formed by a second die 96. The remaining portions of the outer peripheral surface of the support protrusion 13 on the other portions are formed by a third die 97 and a lower die 91. The notch 133 is formed by the third die 97.

[0057] See Figure 8 and Figure 9The inclined ejector mold 95 has a sliding rod portion 953 and a mold head 952 connected along the u-axis. The centerline of the sliding rod portion 953 lies in a plane perpendicular to the x-axis. The sliding rod portion 953 slides relative to the lower mold 91 along the u-axis. The sliding rod of the sliding rod portion 953 also passes through the inclined insertion hole of the sliding seat 959 below the lower mold 91. Since the sliding rod portion 953 is relatively slender, if there is no structural support in the middle of its extension, the sliding rod portion 953 may bend and deform, and it will not be able to provide sufficient pushing force to ensure successful demolding. However, the middle of the extension of the sliding rod portion 953 passes through the sliding seat 959. The sliding seat 959 not only assists in supporting the sliding rod portion 953, but also further ensures that the sliding rod portion 953 moves more accurately along the inclined direction. The mold head 952 is provided with a first forming surface 951 that is concave and arc-shaped, matching the first part of the first portion 131 on the outer peripheral surface of the support protrusion 13. Wherein, the u-axis direction is the tilt direction of this utility model, and the angle between the u-axis direction and the z-axis direction in the plane perpendicular to the x-axis direction is the first included angle α, and the value of the first included angle α ranges from 8 degrees to 15 degrees.

[0058] The second mold 96 is slidably mounted on the lower mold 91 along the y-axis direction via a transverse sliding seat 969. The second mold 96 is provided with a second forming surface 961 that matches the second part of the outer peripheral surface of the support protrusion 13 on the second part 132 and has an inwardly concave arc surface.

[0059] Looking back Figure 2 and Figure 3 In order to ensure that the frame 1 can cooperate with the inclined top mold 95 and the second mold 96, the structure of the inner side of the frame 1 is improved.

[0060] In the prior art, the original shell has internal structures such as an inner wall and longitudinal plates. However, the longitudinal plates extend to and connect with the inner surface of the main wall of the support, and a cavity is formed between the outer wall, inner wall, longitudinal plates, and main wall of the support corresponding to the outer peripheral portion 1102. In addition, in the prior art, the inner surface of the main wall is relatively close to the inner wall of the shell.

[0061] In this invention, the portion connecting the existing longitudinal plate to the main wall 12 is removed to form the longitudinal plate 102 of this invention. This creates a clearance groove 1103 between the outer peripheral portion 1102, the inner wall 101 of the shell 10, and the main wall 12. The opening of the clearance groove 1103 is formed between the longitudinal plate 102 and the main wall 12. This opening faces the outer peripheral surface of the first portion 131 of the support protrusion 13 along the y-axis direction; that is, viewed laterally, the opening of the clearance groove 1103 faces the support protrusion 13. The clearance groove 1103 is used to accommodate the inclined ejector mold 95 and to prevent the inclined ejector mold 95 from disengaging from the support protrusion 13 along the y-axis direction.

[0062] See also Figure 3The inner side of the main wall 12 includes a first surface 121 and a second surface 122; the second surface 122 is closer to the relief groove 1103 than the first surface 121, and the second surface 122 is part of the inner surface of the relief groove 1103. The second surface 122 is formed by a longitudinal surface of the mold head 952 of the inclined mold 95.

[0063] There is a gap between the first surface 121 and the second surface 122 in the x-axis direction. The second surface 122 is located away from the inner side of the housing 10 relative to the first surface 121. Only the first part 131 of the support protrusion 13 protrudes from the second surface 122, while the second part 132 and the rest of the support protrusion 13 protrude from the first surface 121.

[0064] In the prior art, the gap formed between the first surface 121 and the inner wall 101 is too small to accommodate the inclined top mold 95. This invention adjusts the step position connecting the first surface 121 and the second surface 122 to the support protrusion 13. This makes the inner wall 101 of the frame 1 and the second surface 122 of the bracket 11 face each other, and the clearance groove 1103 formed between them is wider. Correspondingly, the longitudinal dimension of the inclined top mold 95 is increased, thereby ensuring the strength of the sliding rod portion of the inclined top mold 95.

[0065] In addition, the longitudinal dimension of the support protrusion 13 needs to be reduced to ensure that the outer peripheral surface of the first part of the support protrusion 13 can be completely formed by the inclined ejector die 95. Mainly, in the x-axis direction, the height of the support protrusion 13 is based on not exceeding the clearance groove 1103. Based on the first surface 121, preferably, the dimension of the support protrusion 13 in the x-axis direction is in the range of 2.5 mm to 3.5 mm. Of course, as long as the fitting requirements with the rotating part are met and the clearance groove 1103 is not exceeded, the dimension of the support protrusion 13 in the x-axis direction can be smaller or larger.

[0066] See also Figure 2 and Figure 3 The second portion 132 of the support protrusion 13 is perpendicular to the outer peripheral portion 1102 along the z-axis direction. The second portion of the outer peripheral surface of the support protrusion 13 on the second portion 132 is formed from the inside of the frame 1 through the second mold 96. The frame 1 includes a clearance space 1104. The clearance space 1104 and the clearance groove 1103 are respectively disposed on opposite sides of the support protrusion 13 in the y-axis direction. Viewed in the x-axis direction, the clearance space 1104 and the clearance groove 1103 are respectively disposed on both sides of the support protrusion 13. Viewed in the y-axis direction, the support protrusion 13 is located within the clearance space 1104. Thus, the second portion 132 is exposed to the frame 1 through the clearance space 1104. The clearance space 1104 is used to accommodate the second mold 96 and to provide a demolding position for the second mold 96 in the y-axis direction.

[0067] In fact, the existing frame has a reinforcing connection between the shell and the support at the same position as the clearance space 1104. The reason is that the existing frame has a large third through hole for injection molding at the same position as the outer peripheral part 1102 of this utility model and at the part opposite to the support protrusion along the z-axis. The above-mentioned reinforcing connection is provided to strengthen the structure.

[0068] However, the reinforced connection hinders demolding from the y-axis and z-axis directions. The existing frame has to set a first through hole for injection molding in the same position as the surrounding part 1101 of this utility model in the bracket. In this way, the third through hole and the first through hole basically cover the semi-circular area of ​​the support protrusion. The two large process holes cause the frame to be weak.

[0069] Since the outer peripheral portion 120 of this embodiment is set as a solid structure without process holes, it can guarantee the connection strength between the housing 10 and the bracket 11. Therefore, it is not necessary to set up the reinforcement connection part in the prior art to compensate for the strength of the third through hole.

[0070] After removing the aforementioned reinforced connection, a clearance space 1104 is formed that can accommodate the second mold 96 and allow the second mold 96 to be demolded along the y-axis.

[0071] See Figure 3 and Figure 10 The inclined top mold 95, the second mold 96, the third mold 97 and the lower mold 91 (not shown in the figure) together form the outer peripheral surface of the supporting protrusion 13 on the inner side of the frame 1.

[0072] Combined Figure 11 The demolding process between the slanted ejector mold 95 and the support protrusion 13 is illustrated using the transition from state diagram a to state diagram b. Below the parting line 100, the lower mold 91 is fixed. As the frame 1 is lifted along the positive z-axis and gradually detaches from the lower mold 91, the slanted ejector mold 95 translates along the u-axis, resulting in displacement along the y-axis. As the slanted ejector mold 95 rises along the positive z-axis, it also gradually moves away from the first part 131 along the y-axis, eventually achieving complete demolding. That is, the first part of the outer circumference of the support protrusion 13 in the first part 131 is formed from the inside of the frame 1 through the slanted ejector mold 95. Specifically, after the upper mold 92 and the longitudinal mold 93 are demolded, as the frame 1 gradually detaches from the lower mold 91 vertically upwards, the slanted ejector mold 95 moves laterally relative to the support protrusion 13 and gradually detaches from the support protrusion 13.

[0073] During the above process, the clearance groove 1103 provides sufficient clearance position in the y-axis direction for the inclined ejector mold 95 to ensure complete demolding.

[0074] This invention uses a slanted top mold 95 and a second mold 96 to form a support protrusion 13 inside the frame 1, and then demolds the slanted top mold 95 and the second mold 96 inside the frame 1. This results in the support 11 of the frame 1 and the area near the support 11 being solid structures without process holes, thereby improving the structural strength.

[0075] Looking back Figure 1 The shell 10 of the frame 1 is provided with a cavity that opens in the negative direction of the z-axis. The bottom wall of the cavity is provided with a reinforcing rib plate that protrudes in the positive direction of the z-axis. The reinforcing rib plate is the bending-resistant reinforcing structure of this utility model. In this embodiment, the reinforcing rib plate is integrally formed with the cavity.

[0076] Furthermore, the reinforcing ribs include transverse reinforcing ribs 1091 and diagonal reinforcing ribs 1092. The normal direction of the transverse reinforcing ribs 1091 is the x-axis direction. The transverse sides of the transverse reinforcing ribs 1091 are respectively connected to two opposite sidewalls of the cavity of the housing 10 in the y-axis direction. The bottom wall and the two sidewalls of the cavity are the inner wall surfaces of the housing 10 of this utility model. The transverse reinforcing ribs 1091 are arranged at intervals along the x-axis direction, thereby dividing the cavity into multiple chambers arranged along the x-axis direction.

[0077] Each chamber is provided with two diagonal reinforcing ribs 1092 that are intersected in an "X" shape. The extension direction of the diagonal reinforcing ribs 1092 is perpendicular to the z-axis and forms an angle with the transverse direction. One extension end of the diagonal reinforcing ribs 1092 is connected to the transverse reinforcing ribs 1091, and the other extension end of the transverse reinforcing ribs 1091 is connected between the transverse reinforcing ribs 1091 and the side wall of the chamber.

[0078] Due to the provision of transverse reinforcing ribs 1091 and diagonal reinforcing ribs 1092, the bending strength of the shell 10 is enhanced in both the longitudinal and transverse directions.

[0079] In other embodiments, the reinforcing structure includes only laterally extending reinforcing ribs disposed on the inner wall surface of the housing, which primarily enhances the lateral bending strength.

[0080] In other embodiments, the reinforcing structure includes only longitudinally extending reinforcing ribs disposed on the inner wall surface of the housing, which primarily enhances the longitudinal bending strength.

[0081] In other embodiments, the reinforcing structure includes longitudinally extending reinforcing ribs and transversely extending reinforcing ribs disposed on the inner wall surface of the housing, the two types of ribs being perpendicularly intersecting and connected to each other.

[0082] This utility model also includes a processing box constructed with the aforementioned frame 1. The frame 1 serves as the main body of the waste powder container of the processing box. In addition to the frame 1, the processing box embodiment also includes other components found in existing processing boxes, such as the powder container, photosensitive element, and developing element. All of the aforementioned other components are prior art, and those skilled in the art can implement them based on existing technologies such as CN108333900A.

[0083] Second embodiment of the frame, second embodiment of the processing box, and second embodiment of the frame mold

[0084] See Figure 12 In this embodiment, the inner side of the shell 20 of the frame 2 is provided with an inner surface plane 29 having a connecting hole and a connecting protrusion, and the normal of the inner surface plane 29 is vertical.

[0085] Similar to the previous embodiment, the frame 2 in this embodiment includes an integrally injection-molded shell 20 and a support 21. The support 21 includes a main wall 22, on which an isolation hole 229 is provided. The inner surface of the main wall 22 is provided with a support protrusion 23 protruding along the x-axis towards the inner side of the shell 20. Also similarly, the surrounding portion and the outer periphery in this embodiment are both solid structures without process holes. The shell 20 of the frame 2 has a cavity opening towards the negative z-axis. The bottom wall of the cavity is provided with a reinforcing rib extending along the positive z-axis. The reinforcing rib is the bending-resistant reinforcing structure of this invention, and the reinforcing rib is integrally molded with the cavity. The difference is that the support protrusion 23 adopts a complete cylindrical structure.

[0086] Combination Figures 13 to 15 The difference is that the outer and inner peripheral surfaces of the support protrusion 23 are formed from the inside of the frame 2 by the same longitudinally moving inclined top mold 85.

[0087] In this embodiment, the inclined ejector mold 85 is slidably connected to the lower mold along the v-axis direction. The v-axis direction is the inclined direction of this utility model. The v-axis direction is on a plane perpendicular to the y-axis direction. That is, the center line of the sliding rod part of the inclined ejector mold 85 is on a plane perpendicular to the y-axis direction. The angle between the v-axis direction and the z-axis direction is the second included angle b. The value of the second included angle b is in the range of 8 degrees to 15 degrees.

[0088] The head of the inclined ejector mold 85 is provided with an annular groove 850. The center line of the annular groove 850 is along the x-axis and the annular groove 850 is open along the x-axis to the surface 851 of the inclined ejector mold 85. The annular groove 850 includes an outer ring forming surface 8501 and an inner ring forming surface 8502 located on the inner periphery of the outer ring forming surface 8501. The outer ring forming surface 8501 is the forming surface of this utility model. The outer ring forming surface 8501 is used to form the outer peripheral surface of the support protrusion 23, and the inner ring forming surface 8502 is used to form the inner peripheral surface of the support protrusion 23.

[0089] See Figures 14 to 16 ,by Figure 16 The transition from state a to state b illustrates the demolding process between the inclined ejector mold 95 and the support protrusion 13. In the initial state shown in state a, the surface 851 of the inclined ejector mold 85 is in contact with the flat inner surface of the main wall 22, and the support protrusion 23 is located in the annular groove 850.

[0090] As the frame 2 rises along the positive z-axis and gradually detaches from the lower mold, the angled ejector 85 translates along the v-axis, resulting in displacement along the x-axis. During the upward movement of the angled ejector 85 along the positive z-axis, it will also gradually move away from the support protrusion 23 along the x-axis, eventually achieving complete demolding. In other words, the support protrusion 23 can detach from the angled ejector 85 by moving longitudinally relative to the support protrusion 25 after the upper and longitudinal molds have been demolded, and during the upward movement of the frame 2 away from the lower mold.

[0091] This utility model also includes a processing box constructed with the aforementioned frame 2. The frame 2 serves as the main body of the waste powder container of the processing box. In addition to the frame 2, the processing box embodiment also includes other components found in existing processing boxes, such as the powder container, photosensitive element, and developing element. All of the aforementioned other components are prior art, and those skilled in the art can implement them based on existing technologies such as CN108333900A.

[0092] In other embodiments, the inclined top mold detaches from the support protrusion longitudinally, and the outer peripheral surface of the support protrusion is formed by the inclined top mold, but the inner peripheral surface of the support protrusion is not formed by the inclined top mold.

[0093] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A frame, comprising an integrally injection-molded shell and a bracket, wherein the bracket is located at one end of the longitudinal direction of the shell and is provided with a support protrusion protruding inward along the longitudinal direction of the shell; Its features are: The bracket includes a surrounding portion that surrounds the support protrusion, the surrounding portion being configured as a solid structure without process holes; The housing includes an outer peripheral portion that is opposite to the support protrusion in the lateral and vertical directions, and the outer peripheral portion is configured as a solid structure without process holes; The inner wall of the shell is provided with a bending-resistant reinforcing structure.

2. The frame according to claim 1, characterized in that: The bracket is also provided with an isolation hole, and the surrounding part is located in the annular area between the support protrusion and the isolation hole.

3. The frame according to claim 1 or 2, characterized in that: The housing has an inner wall, and the support includes a main wall. The inner wall, the main wall, and the outer periphery form a clearance groove. In a transverse view, the opening of the clearance groove faces the support protrusion.

4. The frame according to claim 3, characterized in that: The inner side of the main wall includes a first surface and a second surface; Viewed longitudinally, the second surface is closer to the clearance groove than the first surface, and the second surface is the inner surface of the clearance groove; In the longitudinal direction, there is a gap between the first surface and the second surface, and the second surface is located at the opposite end of the longitudinal direction of the housing relative to the first surface. A portion of the support protrusion protrudes from the first surface, and another portion of the support protrusion protrudes from the second surface.

5. The frame according to claim 4, characterized in that: It also includes a clearance space, which, viewed longitudinally, is respectively located on both sides of the support protrusion; Viewed laterally, the support protrusion is located within the clearance space.

6. A processing box, including a frame, characterized in that: The frame is the frame described in any one of claims 1 to 5.

7. A frame mold for integral injection molding of a frame, comprising an upper mold and a lower mold, wherein the upper mold is demolded vertically relative to the lower mold; Its features are: The frame is the frame described in any one of claims 1 to 5 above; It also includes an inclined ejector mold, which has a sliding rod portion and a mold head, wherein the forming surface of the mold head is used to form at least a portion of the outer peripheral surface of the support protrusion; The slide bar moves relative to the lower mold along an inclined direction that forms an angle with the vertical.

8. The frame mold according to claim 7, characterized in that: The angle between the sliding rod and the vertical direction ranges from 8 degrees to 15 degrees.

9. The frame mold according to claim 8, characterized in that: It also includes the second module; The centerline of the slide bar is in a plane perpendicular to the longitudinal direction. The forming surface of the mold head is used to form the first part of the outer peripheral surface of the support protrusion, and the forming surface of the second mold is used to form the second part of the outer peripheral surface of the support protrusion.

10. The frame mold according to claim 8, characterized in that: The centerline of the slide bar is in a plane perpendicular to the transverse direction, and the forming surface of the mold head is used to form the outer peripheral surface of the support protrusion.

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