Forming equipment for smart phone card tray production

Abstract

The invention relates to the technical field of mobile phone part manufacturing, and discloses forming equipment for smart phone card tray production, the forming equipment comprises an injection molding base and a movable mold part, an injection molding groove is formed in the top of the injection molding base, an injection molding elastic plate is slidably mounted in the injection molding groove, and a third spring is arranged between the injection molding groove and the injection molding elastic plate; and an extrusion part for contacting and pushing the injection molding elastic plate to move downwards is fixed at the bottom of the movable mold part. A corresponding driving piece is arranged in a movable mold piece, before the movable mold piece moves downwards to make contact with an injection molding base to conduct final mold closing, a cleaning assembly moves in place and completes cleaning work on an injection molding groove of an injection molding cavity to be formed, and the action of cleaning in advance occurs before the final step that molten plastic is injected into the cavity; pollutants such as a release agent, dust and chippings which are possibly remained in the injection molding groove are effectively removed, so that the quality problems such as surface flaws and size deviation of the mobile phone card support caused by an unclean cavity are solved to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone parts manufacturing, and in particular to a molding device for producing smart phone card trays. Background Art

[0002] The mobile phone card tray is a component used to fix the mobile phone card. Due to its small size and complex structure, it requires a high degree of manufacturing refinement. Generally speaking, the production of mobile phone card trays often requires corresponding injection molding, and the injection molding mold for mobile phone card trays needs to be cleaned before use.

[0003] In the prior art, cleaning in this regard is often performed after the mold closing action is completed. Although this method does not particularly affect the subsequent injection molding effect, since the injection molding of mobile phone card trays is generally not performed in a dust-free workshop, cleaning in advance may cause the cavity (especially the injection groove area with complex structure and easy to hide dirt) to still have residues or impurities due to other factors in the instantaneous state before the molten plastic is injected, making it difficult to effectively guarantee the subsequent injection molding effect, and further causing the residue to be directly wrapped by the plastic or affecting the flow of the plastic, thereby causing product defects.

[0004] Therefore, the existing demand is not met, and we have proposed a molding device for producing smartphone trays. Summary of the Invention

[0005] The present invention provides a molding device for producing smartphone card trays. By arranging corresponding driving parts inside the movable mold part, the cleaning component is moved into place and completes the cleaning of the injection cavity and injection groove to be formed before the movable mold part moves down to contact the injection base for final mold closing. This "early cleaning" action occurs before the final step of injecting the molten plastic into the mold cavity, effectively removing pollutants such as release agent, dust, debris, etc. that may remain in the injection groove, thereby solving the problems mentioned in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a molding device for producing smartphone card trays, comprising an injection molding base and a movable mold, wherein the top of the injection molding base is provided with an injection molding groove, an injection molding spring plate is slidably mounted within the injection molding groove, a third spring is provided between the injection molding groove and the injection molding spring plate, and an extrusion member is fixed to the bottom of the movable mold member for contacting and pushing the injection molding spring plate downward;

[0007] A movable base plate is provided inside the movable mold, and a cleaning assembly is provided inside the movable base plate. The cleaning assembly includes a cleaning brush head, a bristle assembly and a movable shaft rod. Rotatable rotating disks are symmetrically installed at the bottom corners of the movable mold. The top of each rotating disk is hinged with a second connecting rod, and the second connecting rod is provided inside the movable mold. Two first connecting rods with spiral grooves are fixed on the top of the injection molded base.

[0008] As an optional solution for the molding equipment for producing smartphone card trays described in the present invention, each of the second connecting rods is sleeved with a ratchet, a limit plate is fixed on the top of the second connecting rod, the top of the movable base plate is fixedly connected to one end of the inner core slide rod, the other end of the inner core slide rod is slidably arranged inside the third connecting rod, and the third connecting rod is fixedly installed on the top inner wall of the movable mold.

[0009] As an optional solution for the molding equipment for producing smartphone card trays described in the present invention, a second spring is arranged between the movable base plate and the inner wall of the top of the movable mold, the second spring is sleeved on the third connecting rod, and an inclined slider is installed at the position of the limit plate corresponding to the top of the movable base plate.

[0010] As an optional solution for the molding equipment for producing smartphone card trays described in the present invention, wherein: the bottom of the movable base plate is obliquely hinged to several fourth connecting rods, and the other ends of several of the fourth connecting rods are respectively hinged to the first blocking plate and the second blocking plate in the blocking assembly, and the first blocking plate and the second blocking plate are respectively slidably installed in the corresponding first movable slide groove, and the first movable slide groove is symmetrically opened on the movable mold.

[0011] As an optional solution for the molding equipment for producing smartphone card trays described in the present invention, a first spring is provided between the first blocking plate and the second blocking plate and the corresponding first movable slide groove, and a first movable track groove is provided in each of the first movable slide grooves.

[0012] As an optional solution for the molding equipment for producing smartphone card trays described in the present invention, the brush assembly is composed of fixed bristles and movable bristles, the fixed bristles are fixedly installed on the bottom surface of the cleaning brush head, and a plurality of receiving grooves are provided at the bottom of the movable base plate, and contact parts are fixed on the inner walls on both sides of each receiving groove, the cleaning brush head is fixedly sleeved on the movable shaft, and two second movable slide grooves are symmetrically provided in each receiving groove.

[0013] As an optional solution for the molding equipment for producing smartphone card trays described in the present invention, one end of the movable shaft is slidably installed in a second movable slide groove, and the other end of the movable shaft passes through another second movable slide groove and is slidably connected to the second movable track groove on the inner wall of the movable mold.

[0014] As an optional solution for the molding equipment for producing smartphone card trays described in the present invention, a connecting gear is fixedly sleeved on the movable shaft, a connecting rack is fixedly set inside the second movable slide groove, and the connecting gear and the connecting rack are engaged with each other.

[0015] As an optional solution for the molding equipment for producing smartphone card trays described in the present invention, the third connecting rod is pre-filled with hydraulic oil, the inner core slide rod is a hollow structure, one end of the inner core slide rod is connected to the third connecting rod oil chamber, and the other end of the inner core slide rod is connected to the liquid storage tank inside the cleaning brush head, the liquid storage tank is connected to the hollow inner cavity of the movable shaft rod through the branch groove, and the hollow inner cavity of the movable shaft rod is connected to the liquid storage chamber in the cleaning brush head.

[0016] As an optional solution for the molding equipment for producing smartphone card trays described in the present invention, wherein: the branch grooves opened in the liquid storage chamber are each provided with a sealing member, a fifth spring is provided between the sealing member and the cleaning brush head, a movable slide rod is slidably installed at the lower end of the branch grooves opened in the liquid storage chamber, a fourth spring is provided between the movable slide rod and the cleaning brush head, and the bottom surface of the movable slide rod is connected to movable bristles with a ball joint.

[0017] The present invention has the following beneficial effects:

[0018] 1. This molding equipment for producing smartphone card trays, by setting corresponding drive parts inside the movable mold part, allows the cleaning component to move into place and complete the cleaning of the injection cavity and injection groove to be formed before the movable mold part moves down to contact the injection base for final mold closing. This "pre-cleaning" action occurs before the final step of injecting the molten plastic into the cavity, effectively removing pollutants such as release agent, dust, and debris that may remain in the injection groove, thereby to a certain extent solving quality problems such as surface defects and dimensional deviations in mobile phone card trays caused by unclean cavities.

[0019] 2. This smartphone tray molding machine precisely triggers a hydraulic drive mechanism when the cleaning brush head rotates to its left or right extremes. This forces the bristles to extend radially and adapt to the curved edges of the injection molding slot. This addresses the inherent problem of mechanical cleaning components in the existing technology, which cannot effectively reach and clean vertical edges. This core mechanism of "position triggering + hydraulic extension" significantly improves the cleanliness of key areas of the mold cavity, ensuring high-quality injection molding of smartphone trays. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a bottom view structural diagram of the movable module of the present invention;

[0022] Figure 3 This is a schematic structural diagram of the first section of the partially injection-molded base of the present invention;

[0023] Figure 4 This is a schematic diagram of the second cross-section structure of the partially injection-molded base of the present invention;

[0024] Figure 5 It is a schematic structural diagram of the first section of a partial movable module of the present invention;

[0025] Figure 6 This is a schematic diagram of the second cross-sectional structure of a partial movable module of the present invention;

[0026] Figure 7 It is a schematic diagram of the internal structure of a partial moving module of the present invention;

[0027] Figure 8 It is a schematic structural diagram of the third section of the partial moving module of the present invention;

[0028] Figure 9 This is a schematic diagram of the cleaning assembly of the present invention viewed from above;

[0029] Figure 10 This is a schematic diagram of the first cross-section structure of the partially movable bottom plate of the present invention;

[0030] Figure 11 This is a schematic structural diagram of the cleaning brush head of the present invention;

[0031] Figure 12 This is a schematic diagram of the cross-sectional structure of the local cleaning brush head of the present invention.

[0032] In the picture: 1. Injection molded base; 2. Cleaning components;

[0033] 101. Moving mold; 102. Injection spring plate; 103. First connecting rod; 104. Rotating plate; 105. Blocking assembly; 1051. First blocking plate; 1052. Second blocking plate; 106. First spring; 107. Second connecting rod; 108. Ratchet; 109. Limiting plate; 110. Inclined slider; 111. Fourth connecting rod; 112. Third spring; 113. Moving base plate; 114. Third connecting rod; 115. Second spring; 116. First moving chute; 117. First moving track groove; 118. Inner core slide; 119. Injection groove; 120. Liquid injection port; 121. Second moving track groove;

[0034] 201. Cleaning brush head; 202. Moving shaft; 203. Receiving groove; 204. Second moving slide; 205. Connecting gear; 206. Connecting rack; 207. Liquid storage chamber; 208. Bristle assembly; 2081. Fixed bristles; 2082. Movable bristles; 209. Moving slide; 210. Fourth spring; 211. Sealing piece; 212. Fifth spring. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] For example 1, please refer to Figures 1-12 Since a movable mold 101 is provided above the injection molding base 1, and its top is fixedly connected to the output end of the external hydraulic rod, the user can directly drive the movable mold 101 to rise and fall by controlling the extension and retraction of the hydraulic rod. When the mobile phone card tray needs to be injected, the movable mold 101 can be controlled to move downward.

[0037] Since an injection molding groove 119 is provided at the top of the injection molding base 1, an injection molding spring plate 102 is slidably installed in the injection molding groove 119, and a number of third springs 112 are installed between the two, two extrusion pieces are fixed to the bottom of the movable mold 101. When the mold is closed, the two extrusion pieces will contact the injection molding spring plate 102 before the movable mold 101 moves downward during the downward movement of the movable mold 101. As the movable mold 101 continues to move downward, the extrusion pieces will push the injection molding spring plate 102 to move downward in the injection molding groove 119. It should be noted that through the provision of the third spring 112, after the movable mold 101 is lifted, the third spring 112 can use the reset elastic force to eject the injection-molded mobile phone card tray, thereby facilitating the removal of the component.

[0038] At the same time, one end of the injection groove 119 is provided with a liquid injection port 120, which is connected to the external injection molding equipment. In the initial state (the injection molding spring plate 102 is not moved), one end of the injection molding spring plate 102 blocks the liquid injection port 120. When the extruder pushes the injection molding spring plate 102 downward, the blockage is released and the liquid injection port 120 is opened. After the movable mold 101 and the injection molding base 1 are completely closed, the injection molding equipment can inject melt into the injection cavity (the remaining space of the original injection groove 119) formed by the downward movement of the injection molding spring plate 102. In addition, the early downward movement of the injection molding spring plate 102 allows the cleaning component 2 inside the movable mold 101 to clean the cavity space to be molded before closing the mold, ensuring better injection molding quality.

[0039] Example 2: This example aims to solve the problem that in traditional mold design, the cleaning action is often synchronized or delayed with the mold closing action, which results in the cavity being unable to be effectively maintained in its instantaneous state before the molten plastic is injected, and the residue is directly wrapped by the plastic or affects the plastic flow, resulting in product defects. This example is an improvement made on the basis of Example 1. For details, please refer to Figures 1-12In order to improve the injection molding quality of the mobile phone card tray, a cleaning component 2 is added to the movable mold 101. Its driving mechanism consists of rotatable rotating disks 104 symmetrically installed at the bottom corners of the movable mold 101, and each rotating disk 104 is hinged to a second connecting rod 107.

[0040] At the same time, two first connecting rods 103 with spiral grooves are fixed on the top of the injection molding base 1. The key lies in the action timing design: before the movable mold 101 moves down to contact the injection molding base 1, the rotating disk 104 will first be inserted into the first connecting rod 103 and rotated by the action of the spiral groove. It should be emphasized that the contact between the rotating disk 104 and the first connecting rod 103 occurs before the extrusion part contacts the injection molding spring plate 102. This design ensures that before the movable mold 101 and the injection molding base 1 are finally molded together, the cleaning component 2 (which rotates the second connecting rod 107 through the rotating disk 104) has completed the movement preparation in advance. Therefore, when the extrusion part subsequently squeezes the injection molding spring plate 102 to move down to form the final injection molding cavity, the cleaning component 2 can simultaneously clean the cavity, thereby ensuring the molding quality.

[0041] At the same time, to ensure the unidirectional nature of the cleaning action, a ratchet 108 and a pawl are sleeved on the second connecting rod 107. The ratchet 108 mechanism restricts the rotating disk 104 to unidirectional rotation only when the movable module 101 moves downward, thereby driving the second connecting rod 107 to drive the cleaning assembly 2. When the movable module 101 is reset (moved upward), the pawl will lock the ratchet 108. Even if the rotating disk 104 rotates in the opposite direction, the second connecting rod 107, which is hinged with the rotating disk 104 by a pin, will not rotate. In other words, when the rotating disk 104 rotates in the opposite direction, it will only idle. This design effectively prevents the reverse rotation of the rotating disk 104 during the reset of the movable module 101 from causing the cleaning assembly 2 to move in the opposite direction, thereby causing interference or wear on the corresponding structures.

[0042] On the other hand, a limit disk 109 (special 270-degree disc) is fixed on the top of the second connecting rod 107, and a movable base plate 113 is provided inside the movable module 101. The top of the movable base plate 113 is slidably connected to the third connecting rod 114 fixed to the inner wall of the top of the movable module 101 through an inner core slide rod 118. A second spring 115 is provided between the movable base plate 113 and the top inner wall and is sleeved on the outside of the third connecting rod 114. This structural design effectively ensures the stability of the movement of the movable base plate 113, thereby improving the cleaning effect of the cleaning component 2.

[0043] An inclined slider 110 is mounted on the top of the movable base plate 113, corresponding to the position of the limit plate 109. When the second connecting rod 107 rotates and drives the limit plate 109, the contour of the limit plate 109 contacts and squeezes the inclined surface of the inclined slider 110. This squeezing action forces the movable base plate 113 to move downward, overcoming the resistance of the second spring 115. Since the cleaning assembly 2 is fixed to the bottom of the movable base plate 113, it moves downward accordingly and gradually completes the cleaning of the injection groove 119.

[0044] At the same time, the bottom of the movable base plate 113 is hingedly connected to a number of fourth connecting rods 111, and the other ends of these connecting rods are respectively hinged to the first sealing plate 1051 and the second sealing plate 1052 in the sealing assembly 105. The first sealing plate 1051 and the second sealing plate 1052 are respectively slidably installed in the corresponding first movable slide groove 116, and a first spring 106 is installed between each of them and the first movable slide groove 116. Key initial state: When the movable base plate 113 does not move, the fourth connecting rod 111 pulls the first sealing plate 1051 and the second sealing plate 1052 to be in a closed state. This design ensures that even after the cleaning assembly 2 completes the cleaning of the injection groove 119, the two sealing plates remain engaged, providing the necessary sealed cavity for subsequent injection molding.

[0045] It should be noted that the first moving chute 116 corresponding to the first blocking plate 1051 and the second blocking plate 1052 is provided with a first moving track groove 117 including a horizontal moving section and an inclined descending section. After the cleaning component 2 completes the cleaning of the injection molding groove 119, the movable base plate 113 begins to reset and move upward, pulling the first blocking plate 1051 and the second blocking plate 1052 through the fourth connecting rod 111. At this time, the sliders on the first blocking plate 1051 and the second blocking plate 1052 slide along the horizontal moving section of the first moving track groove 117. As the movable base plate 113 continues to move upward, the slider slides from the horizontal section into the inclined descending section, and finally guides the first blocking plate 1051 and the second blocking plate 1052 to move to the ideal working position parallel to the bottom of the movable mold 101, ensuring that the subsequent mold closing and injection molding forms a high-quality cavity sealing surface. At the same time, a connecting block and a connecting slot are provided between the two blocking plates. When the blocking plate completes the horizontal section movement and is about to enter the inclined section, the block and the slot complete the docking and interlocking. This interlocking design effectively shares the tensile force applied by the fourth connecting rod 111 during subsequent movement, preventing the first sealing plate 1051 and the second sealing plate 1052 from warping upward under stress or movement, thereby ensuring the sealing reliability of the joint surface between the two.

[0046] The cleaning assembly 2 consists of a cleaning brush head 201 and a movable shaft 202. A receiving slot 203 is provided at the bottom of the movable base plate 113, corresponding to the injection molding slot 119. The cleaning brush head 201 is fixedly mounted on the movable shaft 202. Each receiving slot 203 is provided within a second movable groove 204. One end of the movable shaft 202 slides into one of the second movable grooves 204, while the other end passes through the other second movable groove 204 and finally slides into the second movable track groove 121 provided on the inner wall of the movable mold 101.

[0047] When the movable base plate 113 moves downward under the drive of the inclined slider 110, the movable shaft 202 slides synchronously in the second movable track groove 121. The second movable track groove 121 consists of two parts: a vertical sliding section and a wave sliding section. In the initial stage of the downward movement of the movable base plate 113, the movable shaft 202 moves downward along the vertical sliding section of the track groove. At this time, the cleaning brush head 201 moves downward accordingly. When the bristle assembly 208 provided at its bottom end drops to a position parallel to the extrusion block (the extrusion block contacts and squeezes the injection molding spring plate 102), the cleaning brush head 201 begins to clean the injection molding groove 119 space formed after the injection molding spring plate 102 moves downward.

[0048] As the movable base plate 113 continues to move downward, the movable shaft 202 slides from the vertical sliding section into the wavy sliding section. The special contours of the wavy sliding section force the movable shaft 202 to produce additional horizontal reciprocating motion while continuing its vertical motion. This combined motion significantly increases the effective cleaning range of the fixed bristles 2081 and movable bristles 2082 in the bristle assembly 208 within the injection molding groove 119, thereby effectively improving overall cleaning efficiency.

[0049] At the same time, a connecting gear 205 is fixedly sleeved on the movable shaft 202, and the connecting gear 205 meshes with a connecting rack 206 fixed in a second movable chute 204 on one side. Therefore, when the movable shaft 202 moves horizontally due to the downward movement of the movable base plate 113, the connecting gear 205 rolls along the connecting rack 206, forcing the movable shaft 202 to simultaneously generate rotational motion. This means that as the movable base plate 113 continues to move downward, the cleaning brush head 201 not only performs a hard scraping and cleaning of the injection molding groove 119, but also superimposes a reciprocating rotational motion. This combined motion of translation and rotation significantly increases the effective cleaning area of the cleaning brush head 201 within the injection molding groove 119, thereby further improving the overall efficiency of the cleaning assembly 2.

[0050] Example 3: This example is intended to solve the problem that even if the cleaning brush head 201 is moved and rotated, there will still be corresponding cleaning dead angles at the left and right edges of the injection groove 119. This example is an improvement made on the basis of Example 2. For details, please refer to Figures 1-12In order to solve the problem of cleaning the blind corners at the edge of the injection groove 119, this solution has designed a hydraulic auxiliary system: the third connecting rod 114 is pre-filled with hydraulic oil, and the inner core slide rod 118 sliding through it is designed as a hollow structure. One end of the inner core slide rod 118 is connected to the oil chamber of the third connecting rod 114, and the other end is connected to the liquid storage tank inside the cleaning brush head 201. The liquid storage tank is connected to the corresponding hollow inner cavity of the movable shaft 202 through a plurality of branch grooves. It should be noted that the hydraulic oil circuit between the movable shaft 202 and the liquid storage tank connected to the inner core slide rod 118 adopts a section of elastic connecting pipe. One end of the pipe is connected to the liquid storage tank, and the other end is rotatably installed inside the movable shaft 202 through a rotary joint. This design cleverly solves the oil circuit connectivity challenge brought about by the complex movement of the mobile shaft 202: the elastic pipe's own telescopic bending characteristics ensure that when the mobile shaft 202 moves laterally under the drive of the wave trajectory groove, the hydraulic oil can still be stably delivered to its inner cavity; at the same time, the setting of the rotary joint allows the mobile shaft 202 to rotate freely around its own axis during the cleaning process, effectively avoiding pipeline kinks and ensuring the reliability and non-interference of the rotational movement and hydraulic transmission.

[0051] When the movable base plate 113 is pushed downward by the inclined slider 110, the inner core slide 118 slides within the third connecting rod 114, squeezing the hydraulic oil stored therein. The pressurized hydraulic oil then flows through the hollow channel of the inner core slide 118 into the liquid reservoir of the cleaning brush head 201, and is further distributed through the branch grooves into the hollow cavities of each movable shaft 202.

[0052] At the same time, the hollow cavity of the movable shaft 202 is connected to the liquid storage chamber 207 inside the cleaning brush head 201. Therefore, the hydraulic oil injected into the movable shaft 202 is eventually compressed and accumulated in the liquid storage chamber 207. The liquid storage chamber 207 is provided with a plurality of branch grooves, and a blocking member 211 is installed in each branch groove. One end of the blocking member 211 abuts against the cleaning brush head 201 through the fifth spring 212, and the other end passes through the wall of the brush head. It should be noted that a through groove connecting the branch grooves is provided on the blocking member 211. However, before the blocking member 211 is actuated, the through groove is blocked by the wall of the mounting slide groove where it slides.

[0053] At the same time, a movable slide bar 209 is slidably mounted at the lower end of the branch slot blocked by the blocking member 211. The movable slide bar 209 is connected to the cleaning brush head 201 via a fourth spring 210, and its other end is connected to the movable bristles 2082 in the bristle assembly 208 via a ball joint. Contact members are fixed to the inner walls of both sides of the receiving slot 203.

[0054] When the cleaning brush head 201 rotates to the left extreme position along with the movable shaft 202, the contact member on the left side of the receiving groove 203 compresses the left blocking member 211. This compressive force forces the blocking member 211 to retract into the interior of the cleaning brush head 201, overcoming the resistance of the fifth spring 212. When the blocking member 211 has retracted to its maximum stroke, its through-slot is fully aligned with the corresponding branch slot, instantly releasing the compressed hydraulic oil in the reservoir 207 and injecting it through the through-slot into the sliding groove where the movable slide rod 209 is located.

[0055] At this point, the pressure generated by the hydraulic oil pushes the movable slide 209 to overcome the resistance of the fourth spring 210 and move outward. Because the movable slide 209 is connected to the movable bristles 2082 via a ball joint, this movement is then translated into the movable bristles 2082 extending outward, effectively cleaning the blind spot on the left edge of the injection groove 119. Similarly, when the cleaning brush head 201 rotates to the right extreme position, the right contact member triggers the retraction of the right blocking member 211 and the release of hydraulic oil, driving the right movable bristles 2082 to extend and clean the blind spot on the right side.

[0056] It should be noted that a one-way reflux valve is provided between the trough body in which the movable slide rod 209 slides and the liquid storage chamber 207. The valve only allows the hydraulic oil to flow from the sliding trough body to the liquid storage chamber 207, and the reverse flow is prevented. The opening pressure thereof is set lower than the initial preload force of the fourth spring 210. This design ensures that the valve can be automatically opened when the movable slide rod 209 needs to be retracted.

[0057] When the blocking member 211 is reset, causing its through groove to be partially or completely closed, the hydraulic oil pressure in the sliding groove body begins to drop. Prior to this, the fourth spring 210 is in a compressed state due to the instantaneous high pressure of the hydraulic oil. As the pressure drops, the fourth spring 210 gradually releases its elastic force, driving the movable slide rod 209 to retract inward.

[0058] The retraction of the movable slide rod 209 generates negative pressure in the sliding groove body. Since the opening pressure of the one-way reflux valve is lower than the reset elastic force of the fourth spring 210, the negative pressure is sufficient to automatically open the valve. After opening, the valve allows the hydraulic oil in the sliding groove body to gradually flow back to the liquid storage chamber 207.

[0059] After the hydraulic oil has completely flowed back to the liquid storage chamber 207, the movable slide rod 209 will be completely reset to its initial position under the action of the fourth spring 210, and the movable bristles 2082 will also retract. At the same time, the blocking member 211 will be completely reset under the push of the fifth spring 212, resealing the liquid storage chamber 207 and preparing for the next action cycle.

[0060] During the cleaning process, the ball-jointed movable bristles 2082 can also adaptively deflect according to the contact surface contour, ensuring that their tips always closely fit the curved surface of the injection molding groove 119. This adaptive fit, combined with its hydraulically driven extension movement and the overall rotation of the cleaning brush head 201, achieves efficient cleaning of blind spots without blind spots.

[0061] This design effectively solves the problem of cleaning the blind corners on the left and right edges of the injection groove 119 by triggering the hydraulically assisted extension of the bristles at the extreme rotation position of the cleaning brush head 201, significantly improving the cleanliness of the cavity and optimizing the final injection molding quality of the mobile phone card tray.

[0062] When the rotating disk 104 rotates 270 degrees, the second connecting rod 107 hinged to it drives the limiting disk 109 to rotate synchronously 270 degrees. Because the limiting disk 109 is designed as a special 270-degree circular disk, after completing this rotation, its contour is no longer in contact with the inclined slider 110. At this time, the movable base plate 113, which was originally squeezed downward by the inclined slider 110, automatically returns to its original position under the action of the second spring 115. This reset action simultaneously drives all related parts driven by the movable base plate 113 (including the cleaning assembly 2 and its associated mechanisms) back to their initial positions. This reset mechanism ensures that the relevant mechanisms of the mold can be restored to their starting state before each mold closing cycle, ready for the next cleaning and movement.

[0063] After the movable base plate 113 is reset and the blocking assembly 105 is closed in place, the mold closing action of the movable mold 101 and the injection molding base 1 is also completed. At this time, the injection molding equipment is started and the melt can be injected into the mold cavity to complete the injection molding of the mobile phone card tray.

[0064] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0065] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A molding device for producing smart phone card trays, comprising an injection molding base (1) and a movable mold (101), characterized in that: The top of the injection molding base (1) is provided with an injection molding groove (119), an injection molding spring plate (102) is slidably installed inside the injection molding groove (119), a third spring (112) is provided between the injection molding groove (119) and the injection molding spring plate (102), and an extrusion piece for contacting and pushing the injection molding spring plate (102) downward is fixed to the bottom of the movable mold (101); A movable base plate (113) is provided inside the movable mold (101), a cleaning assembly (2) is provided inside the movable base plate (113), and the cleaning assembly (2) comprises a cleaning brush head (201), a bristle assembly (208) and a movable shaft (202). Rotatable rotating disks (104) are symmetrically installed at the bottom corners of the movable mold (101), and each rotating disk (104) is hinged to a second connecting rod (107) at the top. The second connecting rod (107) is provided inside the movable mold (101). Two first connecting rods (103) with spiral grooves are fixed on the top of the injection molding base (1).

2. The molding equipment for producing smartphone card trays according to claim 1, characterized in that: A ratchet (108) is sleeved on each of the second connecting rods (107), a limiting disk (109) is fixed on the top of the second connecting rod (107), the top of the movable base plate (113) is fixedly connected to one end of the inner core slide rod (118), and the other end of the inner core slide rod (118) is slidably arranged inside the third connecting rod (114), and the third connecting rod (114) is fixedly mounted on the inner wall of the top of the movable mold (101).

3. The molding equipment for producing smartphone card trays according to claim 2, characterized in that: A second spring (115) is provided between the movable base plate (113) and the inner wall of the top of the movable mold (101), and the second spring (115) is sleeved on the third connecting rod (114). An inclined sliding block (110) is provided at the top of the movable base plate (113) corresponding to the position of the limit plate (109).

4. The molding equipment for producing smartphone card trays according to claim 3, characterized in that: The bottom of the movable base plate (113) is hingedly connected to a plurality of fourth connecting rods (111), and the other ends of the plurality of fourth connecting rods (111) are respectively hinged to the first blocking plate (1051) and the second blocking plate (1052) in the blocking assembly (105). The first blocking plate (1051) and the second blocking plate (1052) are respectively slidably installed in the corresponding first movable sliding groove (116). The first movable sliding groove (116) is symmetrically opened on the movable mold (101).

5. The molding equipment for producing smartphone card trays according to claim 4, characterized in that: A first spring (106) is provided between the first blocking plate (1051) and the second blocking plate (1052) and the corresponding first movable slide groove (116), and a first movable track groove (117) is provided in each of the first movable slide grooves (116).

6. The molding equipment for producing smartphone card trays according to claim 1, characterized in that: The bristle assembly (208) is composed of fixed bristles (2081) and movable bristles (2082), the fixed bristles (2081) are fixedly mounted on the bottom surface of the cleaning brush head (201), a plurality of receiving grooves (203) are provided at the bottom of the movable base plate (113), and contact members are fixed on the inner walls of both sides of each receiving groove (203), the cleaning brush head (201) is fixedly sleeved on the movable shaft (202), and two second movable slide grooves (204) are symmetrically provided in each receiving groove (203).

7. The molding equipment for producing smartphone card trays according to claim 6, characterized in that: One end of the movable shaft (202) is slidably mounted in a second movable slot (204), and the other end of the movable shaft (202) passes through another second movable slot (204) and is slidably connected to a second movable track slot (121) on the inner wall of the movable module (101).

8. The molding equipment for producing smartphone card trays according to claim 7, characterized in that: A connecting gear (205) is fixedly sleeved on the movable shaft (202), and a connecting rack (206) is fixedly arranged inside the second movable sliding groove (204), and the connecting gear (205) and the connecting rack (206) are meshed with each other.

9. The molding equipment for producing smartphone card trays according to claim 2, characterized in that: The third connecting rod (114) is pre-filled with hydraulic oil, and the inner core slide rod (118) is a hollow structure. One end of the inner core slide rod (118) is connected to the oil chamber of the third connecting rod (114), and the other end of the inner core slide rod (118) is connected to the liquid storage tank inside the cleaning brush head (201). The liquid storage tank is connected to the hollow inner cavity of the movable shaft rod (202) through the branch groove, and the hollow inner cavity of the movable shaft rod (202) is connected to the liquid storage chamber (207) in the cleaning brush head (201).

10. The molding equipment for producing smartphone card trays according to claim 9, characterized in that: The branch grooves opened in the liquid storage chamber (207) are all provided with blocking parts (211), and a fifth spring (212) is provided between the blocking parts (211) and the cleaning brush head (201). A movable slide rod (209) is slidably installed at the lower end of the branch grooves opened in the liquid storage chamber (207), and a fourth spring (210) is provided between the movable slide rod (209) and the cleaning brush head (201). The bottom surface of the movable slide rod (209) is connected to movable bristles (2082) by a ball joint.

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