Material taking jig and material taking equipment

Abstract

The utility model belongs to the technical field of injection molding equipment, and relates to a material taking jig and material taking device.The material taking jig comprises a jig body, a driving piece and a movable needle, and the jig body is installed on a driving device and can be driven by the driving device to move downwards to one side of an injection mold; the driving piece is arranged on the jig body; the movable needle is arranged on the driving part which drives the movable needle to reciprocate; the movable needle is configured to be inserted into an injection molding part on the injection mold when moving towards the injection mold, and is configured to pull the injection molding part when moving away from the injection mold so as to separate the injection molding part from the injection mold. Compared with a traditional vacuum adsorption mode, the material taking jig has the advantages that the material taking process is simpler and more reliable, meanwhile, the problem that the injection molding part falls off due to insufficient vacuum adsorption force can be avoided, and the material taking stability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding equipment, and in particular to a material taking fixture and material taking equipment. Background Art

[0002] After the rubber sleeve is formed, it is usually moved by a push plate to separate the rubber sleeve from the mold core. However, the rubber sleeve has a strong hold on the mold core. Usually, vacuum suction is used to remove the rubber sleeve product, but it often requires a large vacuum suction force to remove the rubber sleeve product. In addition, when the mold is designed with multiple cavities in one mold, the vacuum suction force for removing the rubber sleeve will be dispersed, which can easily cause the rubber sleeve to fall off. Utility Model Content

[0003] In view of this, it is necessary to provide a material taking fixture and a material taking device to solve the technical problem that the existing rubber sleeve material taking effect is not good.

[0004] A first aspect of the present application provides a material picking jig, which includes a jig body, a driving member and a movable needle. The jig body is installed on a driving device and can be moved to one side of an injection mold under the drive of the driving device; the driving member is arranged on the jig body; the movable needle is arranged on the driving member, and the driving member drives the movable needle to reciprocate; the movable needle is configured to be inserted into the interior of an injection molded part on the injection mold when moving toward the injection mold, and is configured to pull the injection molded part when moving away from the injection mold to separate the injection molded part from the injection mold.

[0005] In the above-mentioned material picking jig, the material picking jig is driven by a driving device to move the jig body to one side of the injection mold, and through the cooperation of the driving part and the movable needle, the movable needle can be inserted into the injection molded part during the material picking process to fix the injection molded part. Once the movable needle deviates from the injection mold, the movable needle will pull the injection molded part to separate it from the injection mold. Compared with the traditional vacuum adsorption method, the material picking process of this material picking jig is simpler and more reliable. At the same time, it can avoid the problem of injection molded parts falling off due to insufficient vacuum adsorption force, thereby improving the stability of material picking.

[0006] In at least one embodiment, the movable needle includes a connecting section and an insertion section which are arranged in sequence along the moving direction of the movable needle, and the connecting section is respectively connected to the driving member and the insertion section; the insertion section is provided with a snap-fit ​​surface toward the connecting section, and the insertion section is configured to be inserted into the interior of the injection molded part so that the snap-fit ​​surface fits the inner wall of the injection molded part.

[0007] In the above embodiment, the setting of the connecting section enables the movable needle to be controlled by the driving member to achieve reciprocating movement. In addition, when the movable needle is inserted into the injection molded part, the clamping surface of the insertion section fits tightly with the inner wall of the injection molded part, which can ensure a stable fixing effect between the movable needle and the injection molded part, thereby preventing the injection molded part from falling off during the material removal process.

[0008] In at least one embodiment, the connecting section includes a first section and a second section that are connected, the first section is connected to the driving member, and the second section is connected to the insertion section; the cross-sectional area of ​​the second section perpendicular to the moving direction of the active needle is larger than the cross-sectional area of ​​the first section perpendicular to the moving direction of the active needle.

[0009] In the above embodiment, the connection between the first section and the driving member ensures the reliability of power transmission, while the connection between the second section and the insertion section increases the stability of the entire movable needle. Through the design of the connecting section, the material removal jig can better control the movement of the movable needle, ensure that the movable needle is accurately inserted into and pulled away from the injection molded part, and thus make the material removal process more reliable.

[0010] In at least one embodiment, an end surface of the insertion section facing the injection molded part is a spherical surface.

[0011] In the above embodiment, by designing the end face of the insertion section as a spherical surface, on the one hand, scratching of the injection molded part can be avoided when the movable needle is inserted into the injection molded part; on the other hand, the friction between the insertion section and the injection molded part can be reduced, making the movable needle smoother when inserted into and pulled out of the injection molded part.

[0012] In at least one embodiment, the material picking fixture further includes a movable plate, which is connected to the output end of the driving member. There are multiple movable needles, and the multiple movable needles are arranged on a side of the movable plate away from the driving member.

[0013] In the above embodiment, through the combined design of the movable plate and multiple movable pins, the material picking fixture can realize simultaneous material picking of multiple injection molded parts, thereby improving production efficiency. That is, the material picking fixture is suitable for a multi-cavity injection mold.

[0014] In at least one embodiment, the material picking fixture further includes a contour plate, which is mounted on the fixture body; the contour plate is provided with a through hole, which is configured to contour the injection molded part, and the movable needle extends into the injection molded part after passing through the through hole.

[0015] In the above embodiment, when the material taking jig moves to one side of the injection mold, the injection molded part in the injection mold can be partially or completely accommodated in the corresponding through hole, and then the movable needle passes through the through hole on the profiling plate and extends into the injection molded part. In this way, the injection molded part can be accurately positioned, ensuring the accuracy and reliability of material taking.

[0016] In at least one embodiment, a first positioning portion is provided on the side of the profiling plate away from the jig body, and a second positioning portion is provided on the injection mold. The first positioning portion cooperates with the second positioning portion to position the jig body relative to the injection mold in a plane perpendicular to the moving direction of the movable needle.

[0017] In the above embodiment, through the cooperation of the first positioning portion and the second positioning portion, the fixture body can be accurately aligned with the injection mold in a plane perpendicular to the moving direction of the movable needle, thereby ensuring that the movable needle is accurately inserted into the injection molded part for material removal operations, thereby improving the accuracy and reliability of material removal.

[0018] In at least one embodiment, the first positioning portion includes a plurality of positioning pins, and the second positioning portion includes a plurality of positioning holes matched with the positioning pins, and the positioning pins are inserted into the positioning holes.

[0019] In the above embodiment, the operator only needs to insert the positioning pin into the positioning hole to realize the positioning between the fixture body and the injection mold, which is simple to operate. In addition, by setting multiple sets of positioning pins and positioning holes, it is possible to provide alignment support for multiple positioning points, thereby increasing the stability and accuracy of the alignment between the fixture body and the injection mold.

[0020] A second aspect of the present application provides a material picking device, which includes a driving device and the above-mentioned material picking fixture, and the material picking fixture is installed at the output end of the driving device.

[0021] In at least one embodiment, the jig body is configured to be moved to abut against the injection mold under the drive of the driving device.

[0022] In the above embodiment, by configuring the jig body to move to abut against the injection mold under the drive of an external driving device, accurate alignment of the jig body and the injection mold can be achieved, thereby ensuring that the movable needle can be accurately inserted into the injection molded part to remove the material, providing a stable and reliable basis for subsequent material removal operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a material taking fixture and a fixture module provided in one embodiment of the present application;

[0024] Figure 2 yes Figure 1 A schematic structural diagram of the material picking fixture and the fixture module from another angle;

[0025] Figure 3 yes Figure 1 The schematic diagram of the structure of the material picking fixture and the fixture module after coordination;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of a movable needle and an injection molded part provided in an embodiment of the present application. Figure 1 , wherein the movable needle does not extend into the interior of the injection molded part;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of a movable needle and an injection molded part provided in an embodiment of the present application. Figure 2 , wherein the movable needle extends into the interior of the injection molded part;

[0028] Figure 6 yes Figure 1 The structural schematic diagram of the material taking fixture shown;

[0029] Figure 7 yes Figure 2 The structural schematic diagram of the movable needle shown;

[0030] Figure 8 It is a schematic diagram of the structure of a material taking device provided in one embodiment of the present application.

[0031] Main component symbols

[0032] Reclaiming equipment 1

[0033] Retrieval fixture 100

[0034] Jig body 110

[0035] Driving member 120

[0036] Active needle 130

[0037] Connecting section 131

[0038] The first paragraph 1311

[0039] Second paragraph 1312

[0040] Insert segment 132

[0041] Card interface 1321

[0042] Activity board 140

[0043] Profile plate 150

[0044] Through hole 151

[0045] The first positioning portion 152

[0046] Injection mold 200

[0047] The second positioning portion 210

[0048] Driving device 300

[0049] Injection molded parts 400

[0050] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0051] The following specific embodiments illustrate the implementation of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this application are limited to the implementation. On the contrary, the purpose of introducing the application in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide a deep understanding of the present application, the following description will include many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0052] Hereinafter, if used, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more. Positional terms such as "upper", "lower", "left", and "right" are defined relative to the orientation of the components schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts. They are used for description and clarification relative to the components, and may change accordingly according to changes in the orientation of the components placed in the accompanying drawings.

[0053] In this application, if used, unless otherwise expressly specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, detachable connection, or integrated; can be directly connected or indirectly connected through an intermediate medium. The term "and / or" used herein includes any and all combinations of one or more of the relevant listed items.

[0054] When the following embodiments are described in detail in conjunction with schematic diagrams, for ease of explanation, the diagrams showing the local structures of the devices will not be partially enlarged according to the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of this application.

[0055] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0056] The embodiment of the present application provides a material removal fixture 100, which is used to remove the injection molded part 400 from the injection mold 200. The injection molded part 400 can be a rubber cover product such as an earphone cover, a thumb cover, etc., which is not limited in the present application.

[0057] like Figure 1 , Figure 2 and Figure 3 As shown, the material taking fixture 100 includes a fixture body 110, a driving member 120 and a movable needle 130. The fixture body 110 is installed on a driving device 300 and can be moved to one side of an injection mold 200 under the drive of the driving device 300. It should be noted that one side of the injection mold 200 specifically refers to the side of the injection mold 200 where a mold cavity (not shown) is provided.

[0058] In addition, the driving member 120 is disposed on the fixture body 110, and the movable needle 130 is disposed on the driving member 120, and the driving member 120 drives the movable needle 130 to reciprocate. In addition, the movable needle 130 is configured to be inserted into the inside of the injection mold 400 on the injection mold 200 when moving toward the injection mold 200, and is configured to pull the injection molded part 400 when moving away from the injection mold 200, so as to detach the injection molded part 400 from the injection mold 200. It should be noted that the reciprocating movement specifically refers to the reciprocating movement of the movable needle 130 in the direction of approaching or moving away from the injection mold 200.

[0059] It can be understood that when the movable needle 130 moves toward the injection mold 200 driven by the driving member 120, the movable needle 130 moves toward the injection molded part 400 on the injection mold 200 until the movable needle 130 is inserted into the interior of the injection molded part 400. When the movable needle 130 moves in the direction away from the injection mold 200, the movable needle 130 will pull the injection molded part 400, thereby driving the injection molded part 400 to move, so as to detach the injection molded part 400 from the injection mold 200.

[0060] Obviously, compared with the existing vacuum adsorption method, the material removal fixture 100 can not only easily remove the injection molded part 400 from the injection mold 200, but also avoid the problem of the injection molded part 400 falling off due to insufficient vacuum adsorption force, thereby improving the stability of material removal.

[0061] In one embodiment, the driving member 120 is a pneumatic member. Of course, in other embodiments, the driving member 120 may also be other driving members 120 such as a telescopic motor, and the present application does not limit this.

[0062] Exemplarily, the material taking process of the material taking fixture 100 is as follows: the driving device 300 first drives the fixture body 110 to move to one side of the injection mold 200, and then the driving member 120 drives the movable needle 130 to move in the direction close to the injection mold 200 and insert it into the injection mold 200, so that the movable needle 130 and the injection molded part 400 are relatively fixed. Finally, the driving member 120 drives the movable needle 130 to move in the direction away from the injection mold 200 to separate the injection molded part 400 from the mold, and the material taking is completed.

[0063] In one embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the movable needle 130 includes a connecting section 131 and an inserting section 132. The connecting section 131 and the inserting section 132 are sequentially arranged along the moving direction of the movable needle 130. The connecting section 131 is connected between the driving member 120 and the inserting section 132, so that the movable needle 130 can be controlled by the driving member 120 to achieve a reciprocating movement.

[0064] In addition, the insertion section 132 is provided with a clamping surface 1321 toward the connection section 131, and the insertion section 132 is configured to be inserted into the interior of the injection molded part 400 so that the clamping surface 1321 is in contact with the inner wall of the injection molded part 400. The clamping surface 1321 applies a stopping force to the injection molded part 400 along the direction of the insertion section 132 toward the connection section 131, so that the movable needle 130 can drive the injection molded part 400 to move synchronously along the direction of the insertion section 132 toward the connection section 131.

[0065] It can be understood that when the material taking fixture 100 takes the material, the driving member 120 first drives the connecting section 131 to move in the direction close to the injection mold 200, and the connecting section 131 then drives the inserting section 132 to move in the direction close to the injection mold 200, until the inserting section 132 is inserted into the interior of the injection molded part 400, and the clamping surface 1321 of the inserting section 132 is tightly fitted with the inner wall of the injection molded part 400. Subsequently, the driving member 120 drives the connecting section 131 to move in the direction away from the injection mold 200, and the connecting section 131 drives the inserting section 132 to move in the direction away from the injection mold 200, and the inserting section 132 drives the injection molded part 400 to move synchronously in the direction away from the injection mold 200 through the clamping surface 1321, so that the injection molded part 400 is detached from the injection mold 200, that is, the material taking is completed.

[0066] It should be noted that, by setting the clamping surface 1321, on the one hand, a stable fixing effect between the movable needle 130 and the injection molded part 400 can be ensured to prevent the injection molded part 400 from shifting or falling off during the material removal process; on the other hand, it can ensure that the movable needle 130 drives the injection molded part 400 to move synchronously along the direction of the insertion section 132 toward the connecting section 131, so as to realize the detachment between the injection molded part 400 and the injection mold 200.

[0067] In one embodiment, Figure 7 As shown, the connecting section 131 includes a first section 1311 and a second section 1312. The first section 1311 is connected to the driving member 120, and the second section 1312 is connected to the insertion section 132. It can be understood that when the driving member 120 drives the movable needle 130 to reciprocate, the first section 1311 can transmit the power of the driving member 120 to ensure that the power of the driving member 120 can be effectively transmitted to the movable needle 130. The second section 1312 can achieve the connection and support of the insertion section 132.

[0068] In addition, the cross-sectional area of ​​the second section 1312 perpendicular to the moving direction of the movable needle 130 is larger than the cross-sectional area of ​​the first section 1311 perpendicular to the moving direction of the movable needle 130, so as to increase the stability and rigidity between the connecting section 131 and the insertion section 132, so that the movable needle 130 is more stable and reliable when inserted into and pulled out of the injection molded part 400.

[0069] In one embodiment, Figure 7 As shown, the end surface of the insertion section 132 facing the injection molded part 400 is a spherical surface. On the one hand, it can prevent the injection molded part 400 from being scratched when the movable needle 130 is inserted into the injection molded part 400; on the other hand, it can reduce the friction between the insertion section 132 and the injection molded part 400, so that the movable needle 130 can be inserted into and pulled out of the injection molded part 400 more smoothly.

[0070] In addition, the spherical surface design also helps to improve the automatic centering capability of the insertion section 132. Due to the geometric shape of the spherical surface, the insertion section 132 can automatically center the inner wall of the injection molded part 400 during the insertion process, reducing the deviation and instability during the insertion process, thereby ensuring the accuracy and reliability of the material removal process.

[0071] In one embodiment, Figure 2 , Figure 3 and Figure 6 As shown, the material taking fixture 100 further includes a movable plate 140, which is connected to the output end of the driving member 120. Specifically, the connection between the movable plate 140 and the output end of the driving member 120 can be a threaded connection, a pin connection or other suitable connection methods.

[0072] In addition, there are multiple movable pins 130, and the multiple movable pins 130 are arranged on the side of the movable plate 140 away from the driving member 120. It should be noted that the multiple movable pins 130 can be arranged according to specific needs, and can be arranged at equal distances, or can be reasonably arranged according to the layout and shape of the injection molded part 400, and this application does not limit this.

[0073] It can be understood that when the material taking device takes material, the driving member 120 drives the movable plate 140 to move toward the injection mold 200, thereby driving the multiple movable needles 130 to move toward the injection mold 200 and insert into the corresponding injection molded parts 400 in the injection mold 200. When the driving member 120 drives the movable plate 140 to move in a direction away from the injection mold 200, the multiple movable needles 130 will pull the corresponding injection molded parts 400 to separate the injection molded parts 400 from the mold, that is, the material taking is completed. In this way, it is possible to simultaneously take material from multiple injection molded parts 400, improve the material taking efficiency and production capacity of the material taking fixture 100, and thus meet the high-yield production environment.

[0074] In one embodiment, Figure 1 and Figure 2 As shown, the material removal jig 100 further includes a profiling plate 150, which is mounted on the jig body 110 and is generally made of a material with good wear resistance and corrosion resistance, such as steel or cemented carbide. The profiling plate 150 is provided with through holes 151 that match the shape of the injection molded part 400, and the arrangement and shape of the through holes 151 are designed according to the requirements of the injection molded part 400. Specifically, the shape and arrangement of the through holes 151 are generally determined according to the contour and features of the injection molded part 400.

[0075] In addition, by conforming the shape of the through hole 151 to the injection molded part 400, the movable needle 130 can extend into the injection molded part 400 through the through hole 151 to achieve accurate material collection. It can be understood that when the material collection jig 100 moves to one side of the injection mold 200, the injection molded part 400 in the injection mold 200 can be fully accommodated in the corresponding through hole 151, and then the movable needle 130 extends into the injection molded part 400 through the through hole 151 on the profiling plate 150, and the material collection process is completed. In this way, the injection molded part 400 can be accurately positioned to ensure the accuracy and reliability of material collection.

[0076] Of course, in other embodiments, the injection molded part 400 may also be partially accommodated in the corresponding through hole 151, and the present application does not limit this, and those skilled in the art may choose according to actual conditions.

[0077] In one embodiment, Figure 1 , Figure 2 and Figure 6 As shown, a first positioning portion 152 is provided on the side of the profiling plate 150 away from the jig body 110, and the injection mold 200 is provided with a second positioning portion 210. The first positioning portion 152 cooperates with the second positioning portion 210 to position the jig body 110 relative to the injection mold 200 in a plane perpendicular to the moving direction of the movable needle 130.

[0078] Specifically, the first positioning portion 152 can provide a specific positioning point or surface for cooperating with the second positioning portion 210 on the injection mold 200. The second positioning portion 210 is generally a structure corresponding to the first positioning portion 152. When the jig body 110 moves to abut against the injection mold 200, the first positioning portion 152 and the second positioning portion 210 cooperate with each other to ensure that the jig body 110 is accurately positioned relative to the injection mold 200 in a plane perpendicular to the moving direction of the movable needle 130, thereby ensuring that the movable needle 130 is accurately inserted into the injection mold 400 for material removal operation.

[0079] In one embodiment, the first positioning portion 152 includes a plurality of positioning pins, which may be protrusions, columns, or other shaped parts. They are usually evenly distributed on the side of the profiling plate 150 away from the fixture body 110 to provide multiple positioning points. The second positioning portion 210 includes a plurality of positioning holes adapted to the positioning pins, and the shape and size of the positioning holes match the positioning pins. The positioning holes may be round holes, square holes, or holes of other shapes for accommodating the positioning pins.

[0080] It can be understood that when the jig body 110 moves to abut against the injection mold 200, the positioning pin is inserted into the positioning hole, thereby achieving precise alignment between the jig body 110 and the injection mold 200, ensuring the accuracy and stability of the material removal operation.

[0081] Of course, in other embodiments, the first positioning portion 152 and the second positioning portion 210 may also be other positioning structures such as bosses and grooves, and the present application does not limit this, and those skilled in the art may choose according to actual conditions.

[0082] In summary, compared with the prior art, the material picking fixture 100 has at least the following beneficial effects: the material picking fixture 100 is driven by the driving device 300 to move the fixture body 110 to one side of the injection mold 200, and through the cooperation of the driving member 120 and the movable needle 130, the movable needle 130 can be inserted into the injection molded part 400 during the material picking process to fix the injection molded part 400. Once the movable needle 130 deviates from the injection mold 200, the movable needle 130 will pull the injection molded part 400 to separate it from the injection mold 200. Compared with the traditional vacuum adsorption method, the material picking process of the material picking fixture 100 is simpler and more reliable, and at the same time, it can avoid the problem of the injection molded part 400 falling off due to insufficient vacuum adsorption force, thereby improving the stability of material picking.

[0083] The second aspect of the present application provides a material taking device 1, such as Figure 8 As shown, the material taking device 1 includes a driving device 300 and the material taking fixture 100, and the material taking fixture 100 is installed at the output end of the driving device 300. By adopting the material taking fixture 100, the material taking device 1 can not only easily remove the injection molded part 400 from the injection mold 200, but also avoid the problem of the injection molded part 400 falling off due to insufficient vacuum adsorption force, thereby improving the stability of material taking.

[0084] In one embodiment, the driving device 300 is a robotic arm. On the one hand, the robotic arm has high positioning accuracy and repeated positioning accuracy, and can realize accurate material picking operation; on the other hand, the robotic arm can realize a fully automated production line, thereby improving the production capacity and efficiency of the production line.

[0085] In one embodiment, the jig body 110 is configured to move to abut against the injection mold 200 under the drive of the driving device 300. It can be understood that before using the movable needle 130 to pick up the material, the operator first drives the jig body 110 to move in the direction close to the injection mold 200 through the driving device 300, and makes the jig body 110 abut against the side of the injection mold 200 where the mold cavity is set, so as to ensure the accurate alignment of the jig body 110 and the injection mold 200, that is, to ensure that the movable needle 130 is accurately inserted into the injection molded part 400 for picking up the material, and the injection mold 200 provides a stable and reliable support foundation for the subsequent picking operation.

[0086] Of course, in other embodiments, the fixture body 110 may not abut against the injection mold 200 , but it is necessary to ensure that the movable pin 130 corresponds to the position of the injection molded part 400 in the injection mold 200 .

[0087] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the disclosure scope of the present application.

Claims

1. A material taking fixture, characterized in that: The material taking fixture comprises: A jig body, the jig body being mounted on a driving device and being able to move to one side of an injection mold under the drive of the driving device; A driving member, disposed on the fixture body; A movable needle is arranged on the driving member, and the driving member drives the movable needle to reciprocate; the movable needle is configured to be inserted into the interior of the injection molded part on the injection mold when moving toward the injection mold, and is configured to pull the injection molded part when moving away from the injection mold to detach the injection molded part from the injection mold.

2. The material taking fixture according to claim 1, characterized in that: The movable needle includes a connecting section and an insertion section which are sequentially arranged along the moving direction of the movable needle, the connecting section respectively connecting the driving member and the insertion section; the insertion section is provided with a snap-fit ​​surface toward the connecting section, and the insertion section is configured to be inserted into the interior of the injection molded part so that the snap-fit ​​surface fits against the inner wall of the injection molded part.

3. The material taking fixture according to claim 2, characterized in that: The connecting section includes a first section and a second section that are connected, the first section is connected to the driving member, and the second section is connected to the insertion section; the cross-sectional area of ​​the second section perpendicular to the moving direction of the movable needle is larger than the cross-sectional area of ​​the first section perpendicular to the moving direction of the movable needle.

4. The material taking fixture according to claim 3, characterized in that: The end surface of one end of the insertion section facing the injection molded part is a spherical surface.

5. The material taking fixture according to claim 1, characterized in that: The material taking fixture also includes a movable plate, which is connected to the output end of the driving member. There are multiple movable needles, and the multiple movable needles are arranged on a side of the movable plate away from the driving member.

6. The material taking fixture according to any one of claims 1 to 5, characterized in that: The material picking fixture also includes a profiling plate, which is installed on the fixture body; the profiling plate is provided with a through hole, which is configured to be shaped like the injection molded part, and the movable needle extends into the injection molded part after passing through the through hole.

7. The material taking fixture according to claim 6, characterized in that: A first positioning portion is provided on the side of the profiling plate away from the jig body, and a second positioning portion is provided on the injection mold. The first positioning portion cooperates with the second positioning portion to position the jig body relative to the injection mold in a plane perpendicular to the moving direction of the movable needle.

8. The material taking fixture according to claim 7, characterized in that: The first positioning portion includes a plurality of positioning pins, and the second positioning portion includes a plurality of positioning holes matched with the positioning pins, and the positioning pins are inserted into the positioning holes.

9. A material taking device, characterized in that: The material picking device comprises a driving device and a material picking fixture as described in any one of claims 1 to 8, and the material picking fixture is installed at the output end of the driving device.

10. The material taking device according to claim 9, characterized in that: The jig body is configured to move to abut against the injection mold under the drive of a driving device.

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