An integrated forming device for metal probe injection molding and synchronous bending
By designing an integrated molding device for simultaneous injection molding and bending of metal probes, fully automated production of metal probes has been achieved, solving the problems of long production cycles and large human errors in existing technologies, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN NANZHIXIN INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-26
AI Technical Summary
The existing manufacturing process for dental metal probes involves multiple steps, which increases production cycle and labor costs. Furthermore, manual placement is prone to introducing errors, making it difficult to achieve continuous, efficient, and fully automated production.
Design an integrated molding device for simultaneous injection molding and bending of metal probes. During the injection molding process, movable inserts in the front and rear molds apply precise bending force to the unbent metal probes to achieve multi-stage bending molding and simultaneously perform encapsulation injection molding of the central area.
It has achieved fully automated production of metal probes, eliminated the manual pre-bending process, improved production efficiency and product quality stability, and ensured dimensional accuracy and consistent feel.
Smart Images
Figure CN224408260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental medical device manufacturing technology, specifically to an integrated molding device for simultaneous injection molding and bending of a metal probe. Background Technology
[0002] Dental metal probes are indispensable instruments in oral diagnosis and treatment, primarily serving two core functions: first, mechanical cleaning of hard deposits, using their metal tips to directly and effectively remove tartar, plaque, and other hard deposits from the tooth surface through physical friction; second, palpation examination, gently probing the gums, periodontal pockets, and other soft tissues in the oral cavity to assess their health, texture, bleeding points, and sensitivity, serving as an important auxiliary means of diagnosing periodontal disease and oral mucosal lesions. Therefore, the precise shaping of the probe (especially its specific angled bending design) and its sturdy, hygienic plastic handle encapsulation are crucial to its functionality, ease of use, and lifespan.
[0003] Currently, the industry generally employs the following step-by-step, manual process to manufacture such dental instruments with curved metal probes:
[0004] Step 1: Pre-bending and shaping of metal probes: First, straight metal wires (usually stainless steel) are pre-processed into specific bending angles and shapes that meet clinical requirements using specialized bending equipment or molds.
[0005] Step Two: Manual Placement and Injection Molding: Next, the operator manually and precisely picks up the bent and shaped metal probe and places it into the predetermined cavity of the injection mold. Finally, after the metal probe is positioned, the mold is closed to perform injection molding that covers the central area of the metal probe.
[0006] However, this processing method significantly increases production cycle and labor costs due to its step-by-step operation (bending, transferring, placing, and injection molding). Manual placement is prone to operational errors, leading to deviations in the probe's position and angle within the mold, directly affecting the final product's dimensional accuracy, symmetry, and tactile balance. Product quality stability is highly dependent on the operator's skill and focus; the difficulty in achieving continuous, efficient, fully automated production lines limits capacity expansion and economies of scale. Utility Model Content
[0007] (a) Technical problems to be solved
[0008] This utility model addresses the above-mentioned problems by proposing an integrated molding device for simultaneous injection molding and bending of metal probes. Its purpose is to eliminate the manual operation of pre-bending metal probes and realize fully automated production that simultaneously completes the bending of metal probes and injection molding.
[0009] (II) Technical Solution
[0010] To achieve the above objectives, this utility model provides an integrated molding device for simultaneous injection molding and bending of a metal probe, comprising a front mold and a rear mold. The front mold includes: an A plate, an injection section, a front mold insert fixing section, and a front mold insert movable section; the rear mold includes: a B plate, a rear mold insert fixing section, and a rear mold insert movable section; wherein:
[0011] Plate A and Plate B are joined together by guide pillars and guide sleeves to achieve mold closing. The injection part, the front mold insert fixing part, and the front mold insert movable part are arranged inside Plate A; the rear mold insert fixing part and the rear mold insert movable part are arranged inside Plate B.
[0012] Both the front mold insert fixing part and the rear mold insert fixing part are provided with slots for embedding the two ends of the metal probe, and a molding groove for injection molding the middle area of the metal probe.
[0013] The injection molding section is used to encapsulate the middle area of the metal probe in the molding groove.
[0014] The movable part of the front mold insert and the movable part of the rear mold insert are used to perform multi-stage bending and forming of the unbent metal probe during the injection molding process.
[0015] Furthermore, the movable part of the front mold insert includes a first bending unit and a front mold first driving unit. The first bending unit has a T-shaped structure, including a base and a first bending head. The fixed part of the rear mold insert has a first bending groove that corresponds to and mates with the first bending head.
[0016] Guide rods are provided on both sides of the base, and a first spring is sleeved on the guide rod to buffer the rigid impact of the bending action and assist in the reset.
[0017] The first bending head has an arc-shaped groove that contacts the metal probe and performs bending forming.
[0018] The base portion is driven to descend vertically by the first driving unit of the front mold, which in turn drives the bending head to drive the metal probe to bend progressively within the first bending groove.
[0019] Furthermore, the movable part of the front mold insert also includes a second bending unit and a second front mold drive unit. The second bending unit has a T-shaped structure with a through hole on one side and a mounting groove on another side. An elastic spring pin assembly is installed in the mounting groove. The elastic spring pin assembly includes:
[0020] The mounting block is fixed to one side of the second bending unit;
[0021] The spring pin is confined within the mounting groove by the mounting block. Its rod is positioned opposite the through hole and can extend out of the through hole to contact the metal probe, thereby applying a bending force to the metal probe.
[0022] The second spring is sleeved on the outside of the spring pin and is located between the spring pin and the inner wall of the mounting groove;
[0023] The rear mold insert fixing part is provided with an inclined guide slope. When the second bending unit descends, the end of the spring needle is squeezed by the guide slope, which drives the spring needle to move laterally and compress the spring, so that the protruding end of the spring needle abuts against the metal probe to complete the bending.
[0024] Furthermore, the movable part of the rear mold insert includes a third bending unit and a rear mold drive unit, wherein:
[0025] The rear mold driving unit drives the third bending unit to rise vertically after the mold is closed, applying bending force to the designated part of the metal probe.
[0026] The front mold insert fixing part is provided with a fitting groove, the shape of which matches the target shape of the metal probe after bending, and is used to limit the displacement path of the metal probe when the third bending unit rises.
[0027] The top contour of the third bending unit fits into the inner wall of the fitting groove.
[0028] Furthermore, both the front mold fixture and the rear mold fixture include:
[0029] The cylinder is fixed to the front or rear mold and serves as a drive unit.
[0030] The push plate is connected to the output end of the cylinder and reciprocates in a horizontal direction.
[0031] A long strip pusher plate is fixed to the end of the pusher plate, and several protrusions are evenly arranged along its length.
[0032] Furthermore, the front mold and the rear mold are respectively provided with water channels for temperature control during injection molding.
[0033] Furthermore, the water transport channel includes a front mold water transport channel and a rear mold water transport channel. The front mold water transport channel is disposed within the A plate, and the rear mold water transport channel is disposed within the B plate, wherein the front mold water transport channel and the rear mold water transport channel are disposed opposite to each other.
[0034] Furthermore, the front mold core insert fixing part and the rear mold core insert fixing part are detachably connected to plate A and plate B, respectively.
[0035] Furthermore, the slot is a V-shaped guide slot with a symmetrical V-shaped geometric structure in its cross-section, and the included angle between the two inclined surfaces is 15°-85°. The bottom of the slot is either a rounded bottom or a flat bottom.
[0036] Furthermore, the protrusion is provided with a V-shaped groove along the movement direction of the elongated pusher piece.
[0037] (III) Beneficial Effects
[0038] Compared with the prior art, the present invention provides an integrated molding device for simultaneous bending of metal probes during injection molding. By setting movable inserts (movable inserts in the front mold core and movable inserts in the rear mold) in the front mold and the rear mold, these movable inserts directly apply precise bending force to the straight metal probes that are not pre-bent and are pre-embedded in the slots of the fixed part during the mold closing injection molding process, so as to achieve multi-stage bending molding. At the same time, the injection molding part injects molten plastic into the molding groove formed by the fixed part and the movable part. During the bending and shaping of the metal probe, the encapsulation injection of its middle area is completed simultaneously. Finally, within one mold closing injection molding cycle, multiple finished metal probes that are bent, shaped and fully encapsulated are output in one go and automatically. Attached Figure Description
[0039] Figure 1 This is a diagram showing the mold closing state of an integrated molding device for synchronous bending of metal probes during injection molding, as disclosed in this application.
[0040] Figure 2 This is an unclosed state diagram of an integrated molding device for synchronous bending of metal probe injection, as disclosed in this application.
[0041] Figure 3 This is a three-dimensional structural diagram of a straight metal probe disclosed in this application.
[0042] Figure 4 This is a three-dimensional structural diagram of a metal probe in a bent state disclosed in this application.
[0043] Figure 5 This is a schematic diagram of a rear mold structure disclosed in this application.
[0044] Figure 6 This is a structural diagram of a rear mold core insert fixing part disclosed in this application.
[0045] Figure 7 This is a positional diagram of the rear mold insert fixing part and the rear mold insert moving part disclosed in this application.
[0046] Figure 8 This is a structural diagram of a rear mold fixture disclosed in this application.
[0047] Figure 9 This is a front mold structure diagram disclosed in this application.
[0048] Figure 10 This is a structural diagram of a front mold core insert fixing part disclosed in this application.
[0049] Figure 11 This is a structural diagram of a first bending unit disclosed in this application.
[0050] Figure 12 This is a structural diagram of a second bending unit disclosed in this application.
[0051] Figure 13 This is a cross-sectional view of a mold-closing bending process disclosed in this application.
[0052] The reference numerals shown in the figure:
[0053] 1. Front mold; 10. A plate; 11. Injection section; 12. Front mold core insert fixing part; 13. Front mold core insert moving part; 14. Front mold fixture; 130. First bending unit; 131. Second bending unit; 132. Elastic pin assembly; 1301. Base part; 1302. First bending head; 1303. Guide rod; 1304. First spring; 1305. Arc groove; 1310. Through hole; 1320. Mounting block; 1321. Spring pin; 1322. Second spring; 1200. Fitting groove;
[0054] 2. Rear mold; 20. B plate; 21. Rear mold core insert fixing part; 22. Rear mold insert moving part; 23. Rear mold fixture; 220. Slot; 221. Forming groove; 222. Third bending unit; 240. Cylinder; 241. Push plate; 242. Long strip push plate; 2420. Protrusion; 2421. V-groove; 2100. First bending groove; 2101. Guide slope;
[0055] 3. Metal probe. Detailed Implementation
[0056] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0057] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0058] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0059] like Figure 1 , Figure 2 As shown, to eliminate manual pre-bending operations and automate synchronous bending injection molding, this utility model provides an integrated molding device for synchronous bending using a metal probe injection. The device mainly consists of two parts: a front mold 1 and a rear mold 2.
[0060] Front mold 1: includes A plate 10, and injection part 11, front mold core insert fixing part 12 and front mold core insert moving part 13 installed in A plate 10.
[0061] Rear mold 2: includes B plate 20, and rear mold core insert fixing part 21 and rear mold insert movable part 22 installed in B plate 20.
[0062] Plate A 10 and Plate B 20 are precisely joined together by guide pillars and guide sleeves. Before mold closing, the straight metal probe 3 (see...) is not pre-bent. Figure 3 The metal probe 3 is positioned so that its two ends are respectively embedded in the specially designed slots 220 on the front mold core insert fixing part 12 and the rear mold core insert fixing part 21, achieving precise positioning. The central area of the metal probe 3 that needs to be injection molded is located in the molding groove 221 formed by the front and rear mold core fixing parts.
[0063] During mold closing or injection molding, the movable part 13 of the front mold insert and the movable part 22 of the rear mold insert work together to directly apply the required bending force to the positioned straight metal probe 3, completing the multi-stage bending forming of the first bending segment, the second bending segment, and the third bending segment in one go within the mold (see...). Figure 4).
[0064] Simultaneously, the injection molding unit is activated, injecting molten material into the molding tank 221 to precisely coat the central area (i.e., the coating injection section) of the metal probe 3. After injection molding, holding pressure, and cooling, the mold is opened, the movable insert is reset, and multiple finished metal probe 3 products with all bending (first, second, and third sections) and complete central area coating can be removed at once.
[0065] In short, by utilizing the movable inserts in the front and rear molds (the movable insert 13 in the front mold core and the movable insert 22 in the rear mold core), the pre-positioned straight metal probe 3 is directly bent in multiple stages (forming the first, second, and third bending sections) inside the mold during the same cycle of mold closing and injection molding. Simultaneously or immediately afterward, it is injected into the middle area after bending and shaping to complete the covering (forming the covering injection section). Thus, the final product is output in an automated cycle, completely eliminating the manual pre-bending and placement of bent parts.
[0066] like Figure 5 and Figure 6 As shown, the slot 220 is a V-shaped guide slot with a symmetrical V-shaped geometric structure in its cross-section. The angle between the two inclined surfaces is 15°-85°, and the bottom of the slot is either rounded or flat.
[0067] like Figures 9-11 As shown, the movable part 13 of the front mold insert includes a first bending unit 130 and its front mold first drive unit. The first bending unit 130 is designed as a T-shaped structure, consisting of a base part 1301 and a first bending head 1302. Correspondingly, the fixed part 21 of the rear mold insert has a first bending groove 2100 that precisely matches the first bending head 1302 (see...). Figure 6 ).
[0068] Guide rods 1303 are installed on both sides of the base 1301. A first spring 1304 is fitted on the guide rods 1303. On the one hand, it buffers the rigid impact generated when the first bending unit 130 descends, protecting the metal probe 3 from damage. On the other hand, it provides auxiliary reset force when the mold is opened or the first drive unit retracts, helping the first bending unit 130 to quickly return to the initial position.
[0069] The working surface of the first bending head 1302 is provided with an arc-shaped groove 1305. This arc-shaped groove 1305 directly contacts the metal probe 3 during the bending process, serving as a force application point to guide and execute the precise bending and forming action of the metal probe 3. The base part 1301 of the first bending unit 130 is driven by the front mold first drive unit (such as a hydraulic cylinder, air cylinder, or inclined ejector mechanism), enabling it to descend stably in the vertical direction. When descending, the first bending head 1302 moves downward accordingly, gradually pressing the metal probe 3 embedded in the slot 220 of the rear mold insert fixing part 21 into the lower first bending groove 2100, thereby realizing the progressive bending and forming of the first bending section of the metal probe 3.
[0070] like Figure 12 As shown, the movable part 13 of the front mold insert also includes a second bending unit 131 and its independent front mold second drive unit. The second bending unit 131 also adopts a T-shaped structure, but its side is designed with a through hole 1310 that runs through the entire unit, and a mounting groove is machined on one of its sides. The elastic spring pin assembly 132 is installed in the mounting groove and mainly consists of the following components:
[0071] Mounting block 1320: Fixed to the side end of the second bending unit 131, serving as the base of the component.
[0072] Spring pin 1321: Its rod is confined within the mounting groove by the mounting block, precisely aligned with the through hole 1310 on the side. Spring pin 1321 can slide laterally within the through hole 1310, and its protruding end is used to directly contact and push the metal probe 3 during bending.
[0073] The second spring 1322 is fitted outside the spring pin 1321 and pre-compressed between the spring pin 1321 and the inner wall of the mounting groove. The second spring 1322 provides the elastic force required for the lateral movement of the spring pin 1321 and is responsible for resetting the spring pin 1321 after the action is completed.
[0074] The rear mold insert fixing part 21, corresponding to the position of the second bending unit 131, is designed with an inclined guide slope 2101 (see Figure 13When the second bending unit 131 descends vertically under the drive of the second drive unit of the front mold, the end (non-working end) of the spring pin 1321 mounted on it contacts the inclined guide slope 2101 of the rear mold insert fixing part 21. As the second bending unit 131 continues to descend, the squeezing effect of the guide slope 2101 on the end of the spring pin 1321 continues to increase. This vertical downward movement is converted into a lateral thrust through the slope, driving the spring pin 1321 to overcome the resistance of the second spring 1322 and move laterally inward (towards the metal probe 3) along the through hole 1310; the laterally moving spring pin 1321, its protruding end (working end) then strongly abuts against the pre-positioned metal probe 3, applying a precisely controlled lateral bending force, thereby realizing the forming of the second bending section of the metal probe 3. When the second bending unit 131 rises back to its original position under the drive unit, the end of the spring pin 1321 disengages from the squeezing of the guide slope 2101. At this time, the compressed second spring 1322 releases energy, pushing the spring pin 1321 to move laterally outward, completely retracting into the through hole 1310, restoring the initial state, and preparing for the next working cycle.
[0075] like Figure 7 As shown, the movable part 22 of the rear mold insert includes a third bending unit 222 and its rear mold drive unit. After the mold is closed and locked, the rear mold drive unit (such as a hydraulic cylinder or ejector mechanism) is activated, driving the third bending unit 222 to rise steadily in the vertical direction; when the third bending unit 222 rises, its top working surface will accurately contact and push the metal probe 3 to the predetermined designated part, applying the bending force required to complete the third bending segment.
[0076] like Figure 10 Meanwhile, the fitting groove 1200 located on the front mold insert fixing part 12 perfectly matches the final target shape of the metal probe 3 after the third bend. Specifically, the cavity contour of the fitting groove 1200 matches the target shape of the metal probe 3 after bending, which is used to limit the displacement path of the metal probe 3 when the third bending unit 222 rises. When the third bending unit 222 pushes the metal probe 3 upward, the corresponding part of the metal probe 3 is forced into and fits the preset fitting groove 1200 cavity; the rigid inner wall of the fitting groove 1200 strictly limits the displacement path and deformation trajectory of the metal probe 3 at this part, ensuring that it can only bend according to the preset and correct shape; during the entire upward bending process, the top contour of the third bending unit 222 and the inner wall of the fitting groove 1200 maintain a precise dynamic fit relationship, so that the fitting groove 1200 provides passive shape constraint and guidance, accurately guides the deformation direction and shapes the final contour.
[0077] like Figure 8As shown, to ensure the metal probe 3 is precisely fixed before bending and injection molding, and to prevent displacement from affecting quality, both the front mold 1 and the rear mold 2 are equipped with a set of positioning and clamping fixtures, namely the front mold fixture 14 and the rear mold fixture 23. Each fixture set includes the following components:
[0078] Cylinder 240 is fixedly installed on the corresponding front mold 1 or rear mold 2 base to provide power;
[0079] Push plate 241, one end of which is directly connected to the output end of cylinder 240. When cylinder 240 is activated, it drives push plate 241 to reciprocate linearly in the horizontal direction;
[0080] A long strip pusher 242 is rigidly fixed to the end of the pusher plate 241. Along its length, the long strip pusher 242 has multiple protrusions 2420 at equal intervals.
[0081] Each protrusion 2420 has a V-groove 2421 machined on its end face facing the direction of movement of the metal probe 3.
[0082] After the A plate 10 and B plate 20 are closed, before the bending action is started and before the injection molding begins, the placed metal probe 3 is still in a relatively loose state and needs to be precisely fixed. At this time, the cylinder 240 is activated, pushing the push plate 241 connected to it to move horizontally. The movement of the push plate 241 drives the elongated push piece 242 at its front end to move horizontally in sync. The protrusions 2420 and their V-grooves 2421 on the elongated push piece 242 move accordingly. The moving elongated push piece 242 makes the V-grooves 2421 of each protrusion 2420 contact the corresponding metal probe 3. The angle between the two inclined surfaces of the V-groove 2421 automatically guides and accommodates the metal probe 3. As the elongated pusher 242 continues to advance horizontally, the contact force between the inclined surfaces of the V-groove 2421 and the metal probe 3 stably pulls the metal probe 3 towards and tightly fits it onto the pre-set positioning surfaces on the front mold insert fixing part 12 and the rear mold insert fixing part 21. After the movement is completed, the metal probe 3 is firmly clamped between the V-groove 2421 and the positioning surfaces of the front and rear mold fixing parts, eliminating all looseness and freedom. Throughout the bending and injection molding process, the cylinder 240 maintains pressure to ensure that the metal probe 3 remains fixed. After the process is completed, the cylinder 240 reverses its movement, driving the elongated pusher 242 to retract, releasing the clamping force so that the mold can be opened and the finished product can be removed.
[0083] To precisely control the mold temperature during the injection molding process, ensure uniform filling and rapid cooling and solidification of the plastic melt, and reduce product deformation, both the front mold 1 and the rear mold 2 are integrated with water channels. The water channels include front mold water channels and rear mold water channels. The front mold water channels are located within the A plate 10, and the rear mold water channels are located within the B plate 20. The front mold water channels and the rear mold water channels are arranged opposite to each other.
[0084] Considering the maintainability and lifespan of the mold and the replaceability of the inserts, the front mold core insert fixing part 12 and the rear mold core insert fixing part 21 are detachably connected to plate A 10 and plate B 20, respectively.
[0085] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An integrated molding device for simultaneous injection molding and bending of a metal probe, comprising a front mold and a rear mold, characterized in that, The front mold includes: an A plate, an injection section, a front mold insert fixing section, and a front mold insert movable section; the rear mold includes: a B plate, a rear mold insert fixing section, and a rear mold insert movable section; wherein: Plate A and Plate B are joined together by guide pillars and guide sleeves to achieve mold closing. The injection part, the front mold insert fixing part, and the front mold insert movable part are arranged inside Plate A; the rear mold insert fixing part and the rear mold insert movable part are arranged inside Plate B. Both the front mold insert fixing part and the rear mold insert fixing part are provided with slots for embedding the two ends of the metal probe, and a molding groove for injection molding the middle area of the metal probe. The injection molding section is used to encapsulate the middle area of the metal probe in the molding groove. The movable part of the front mold insert and the movable part of the rear mold insert are used to perform multi-stage bending and forming of the unbent metal probe during the injection molding process.
2. The integrated molding device for simultaneous injection molding and bending of a metal probe as described in claim 1, characterized in that, The movable part of the front mold insert includes a first bending unit and a front mold first drive unit. The first bending unit has a T-shaped structure, including a base and a first bending head. The fixed part of the rear mold insert has a first bending groove that corresponds to and mates with the first bending head. Guide rods are provided on both sides of the base, and a first spring is sleeved on the guide rod to buffer the rigid impact of the bending action and assist in the reset. The first bending head has an arc-shaped groove that contacts the metal probe and performs bending forming. The base portion is driven to descend vertically by the first driving unit of the front mold, which in turn drives the bending head to drive the metal probe to bend progressively within the first bending groove.
3. The integrated molding device for simultaneous injection molding and bending of a metal probe as described in claim 2, characterized in that, The movable part of the front mold insert also includes a second bending unit and a second front mold drive unit. The second bending unit is a T-shaped structure with a through hole on one side and a mounting groove on another side. An elastic spring pin assembly is installed in the mounting groove. The elastic spring pin assembly includes: The mounting block is fixed to one side of the second bending unit; The spring pin is confined within the mounting groove by the mounting block. Its rod is positioned opposite the through hole and can extend out of the through hole to contact the metal probe, thereby applying a bending force to the metal probe. The second spring is sleeved on the outside of the spring pin and is located between the spring pin and the inner wall of the mounting groove; The rear mold insert fixing part is provided with an inclined guide slope. When the second bending unit descends, the end of the spring needle is squeezed by the guide slope, which drives the spring needle to move laterally and compress the second spring, so that the protruding end of the spring needle abuts against the metal probe to complete the bending.
4. The integrated molding device for simultaneous injection molding and bending of a metal probe as described in claim 1, characterized in that, The movable part of the rear mold insert includes a third bending unit and a rear mold drive unit, wherein: The rear mold driving unit drives the third bending unit to rise vertically after the mold is closed, applying bending force to the designated part of the metal probe. The front mold insert fixing part is provided with a fitting groove, the shape of which matches the target shape of the metal probe after bending, and is used to limit the displacement path of the metal probe when the third bending unit rises. The top contour of the third bending unit fits into the inner wall of the fitting groove.
5. The integrated molding device for simultaneous injection molding and bending of a metal probe as described in claim 1, characterized in that, The front mold and the rear mold further include a front mold fixture and a rear mold fixture, each of which includes: The cylinder is fixed to the front or rear mold and serves as a drive unit. The push plate is connected to the output end of the cylinder and reciprocates in a horizontal direction. A long strip pusher plate is fixed to the end of the pusher plate, and several protrusions are evenly arranged along its length.
6. The integrated molding device for simultaneous injection molding and bending of a metal probe as described in claim 1, characterized in that, The front mold and the rear mold are each equipped with a water channel for temperature control during injection molding.
7. The integrated molding device for simultaneous injection molding and bending of a metal probe as described in claim 6, characterized in that, The water transport channel includes a front mold water transport channel and a rear mold water transport channel. The front mold water transport channel is located inside the A plate, and the rear mold water transport channel is located inside the B plate, wherein the front mold water transport channel and the rear mold water transport channel are arranged opposite to each other.
8. The integrated molding device for simultaneous injection molding and bending of a metal probe as described in claim 1, characterized in that, The front mold core insert fixing part and the rear mold core insert fixing part are detachably connected to plate A and plate B, respectively.
9. The integrated molding device for simultaneous injection molding and bending of a metal probe as described in claim 1, characterized in that, The slot is a V-shaped guide slot with a symmetrical V-shaped geometric structure in cross-section. The angle between the two inclined surfaces is 15°-85°, and the bottom of the slot is either rounded or flat.
10. The integrated molding device for simultaneous injection molding and bending of a metal probe as described in claim 5, characterized in that, The protrusion has a V-shaped groove along the movement direction of the elongated pusher piece.