Injection molded part picking structure

Abstract

The utility model provides a kind of injection molding part material taking structure, it includes translation support, negative pressure box, multiple plugging components and multiple adsorption components. Multiple plug-in holes are opened on negative pressure box;Plugging component includes connecting ring and multiple swing pieces, and torsional spring is equipped in the position of swing piece and connecting ring contact;Adsorption component includes hollow tube, outer sleeve and reset spring between outer sleeve and hollow tube, and suction disc is equipped in the one end of hollow tube, positioning slot is opened on the end of hollow tube away from suction disc, and the end of outer sleeve is equipped with notch, and one swing piece is equipped with blocking pin. The injection molding part material taking structure can be fixed on the plug-in hole of corresponding position according to the distribution position of product inside mould, and adsorption component and negative pressure disc are detachably connected;When production task changes, the position of adsorption component on negative pressure disc can be flexibly adjusted according to actual situation, and debugging operation is simple, and equipment maintenance difficulty is low.

Description

Technical Field

[0001] This utility model relates to the field of plastic product manufacturing, and in particular to a material feeding structure for injection molded parts. Background Technology

[0002] Figure 2 The injection molding machine 20 includes a machine body 21, a robot arm 22, and a mold 23. The machine body 21 controls the mold 23 to close and open, and injects molten plastic into the cavity of the mold 23. The product is formed in the cavity of the mold 23, and then the robot arm 22 removes the product. To improve production efficiency, the mold 23 is often configured with multiple product forming areas, and multiple products can be obtained in a single injection process. The robot arm 22 needs to be configured with corresponding suction devices 24 according to the distribution position of the products in the mold 23, and uses the suction devices 24 to pick up the products and remove them from the cavity.

[0003] The existing suction device 24 on the robotic arm 22, such as Figure 1 As shown, the device consists of a bracket 25 and multiple suction cups 26. The suction cups 26 are fixed together by the bracket 25, allowing them to align with the gripping parts on the product. After the injection molding machine 20 completes its production task, it produces other products by replacing the mold 23. However, the sizes and shapes of different products are different, resulting in inconsistent distribution positions of the products in different molds 23. Although the existing robot arm 22 provides a sliding structure for adjusting the suction cups 26, its displacement direction and distance are limited by the bracket 25, making it impossible to significantly change the relative positions between the suction cups 26. Therefore, when producing different styles of products, it is necessary to replace the suction cups 24 on the robot arm 22.

[0004] That is, the existing suction device 24 on the robotic arm 22 has low universality, and multiple suction devices 24 need to be configured to match the mold 23, which increases the equipment manufacturing cost and the equipment debugging cycle is long. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a material picking structure for injection molded parts that can flexibly adjust the adsorption position according to the distribution of the product inside the mold, making debugging and operation simple and reducing the difficulty of equipment maintenance.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A material handling structure for injection molded parts includes: a translational bracket, a negative pressure box, multiple sealing components, and multiple adsorption components;

[0008] The negative pressure box has multiple insertion holes, and each insertion hole is provided with a sealing component;

[0009] The sealing assembly includes a connecting ring and a plurality of swing plates. The swing plates are rotatably disposed on the connecting ring, and a torsion spring is provided at the position on the swing plate that contacts the connecting ring. The torsion spring is used to drive the swing plate to swing toward the center of the connecting ring to seal the insertion hole.

[0010] The adsorption assembly includes a hollow tube, an outer sleeve, and a return spring disposed between the outer sleeve and the hollow tube. One end of the hollow tube is provided with a suction cup, and a positioning groove is provided on the end of the hollow tube away from the suction cup. The end of the outer sleeve is provided with a notch, and a blocking pin matching the notch is provided on the outer wall of one of the swing pieces. Rotating the outer sleeve is used to drive the swing piece away from the center of the connecting ring to release the blockage of the insertion hole and allow the hollow tube to extend into the negative pressure box.

[0011] In one embodiment, the oscillating piece has a stop surface and an inclined surface at one end facing the center of the connecting ring, and the inclined surface is in contact with the stop surface on the adjacent oscillating piece.

[0012] In one embodiment, sealing gaskets are attached to both the stop surface and the inclined surface.

[0013] In one embodiment, the number of oscillating plates is six.

[0014] In one embodiment, the thickness of the oscillating piece is less than the width of the positioning groove.

[0015] In one embodiment, a limiting ring is provided at one end of the hollow tube away from the suction cup, and a groove is provided on the outer sleeve for receiving the limiting ring.

[0016] In one embodiment, a plurality of the insertion holes are arranged in a rectangular array on the negative pressure box.

[0017] In one embodiment, the insertion hole is provided with a step, which is used to block the outer casing.

[0018] In one embodiment, the outer wall of the jacket is provided with a wrench position.

[0019] In one embodiment, the sealing component is located inside the negative pressure box.

[0020] The above-mentioned injection molding part picking structure can fix the adsorption component on the corresponding insertion hole according to the distribution position of the product inside the mold, and the adsorption component and the negative pressure plate are detachably connected; when the production task changes, the position of the adsorption component on the negative pressure plate can be flexibly adjusted according to the actual situation, and the debugging operation is simple and the equipment maintenance difficulty is low. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the adsorber on an existing robotic arm;

[0023] Figure 2 This is a schematic diagram of the injection molding machine.

[0024] Figure 3 This is a schematic diagram of the material feeding structure for injection molded parts;

[0025] Figure 4 This is a schematic diagram showing the interaction between the negative pressure box and the adsorption component;

[0026] Figure 5 This is a schematic diagram showing the disassembly of the sealing component;

[0027] Figure 6 This is a schematic diagram of the adsorption component.

[0028] Figure 7 A schematic diagram showing the state when the oscillating plate closes the insertion hole;

[0029] Figure 8 for Figure 7 A schematic diagram showing the interaction between the adsorption component and the blocking component in the indicated state;

[0030] Figure 9 This is a schematic diagram showing the state of the connector after it has been opened.

[0031] Figure 10 for Figure 9 The diagram shows the interaction between the adsorption component and the sealing component in the indicated state.

[0032] Reference numerals: 10. Injection molding part picking structure; 20. Injection molding machine; 21. Injection molding machine body; 22. Robot arm; 23. Mold; 24. Adsorber; 25. Support; 26. Suction cup; 100. Translation support; 200. Negative pressure box; 210. Insertion hole; 211. Step; 300. Sealing assembly; 310. Connecting ring; 320. Swing plate; 321. Blocking pin; 322. Stop surface; 323. Inclined surface; 330. Torsion spring; 400. Adsorption assembly; 410. Hollow tube; 411. Suction cup; 412. Positioning groove; 413. Limiting ring; 420. Outer sleeve; 421. Notch; 422. Groove; 423. Wrench position; 430. Return spring. Detailed Implementation

[0033] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Please see Figure 3 and Figure 5 This utility model provides an injection molding part material handling structure 10, which includes: a translation bracket 100, a negative pressure box 200, multiple sealing components 300 and multiple adsorption components 400.

[0037] Please see Figure 4 and Figure 5 The negative pressure box 200 has multiple insertion holes 210, and each insertion hole 210 is provided with a sealing component 300.

[0038] Please see Figure 5 and Figure 7 The sealing assembly 300 includes a connecting ring 310 and multiple swing plates 320. In this embodiment, six swing plates 320 are provided. Each swing plate 320 is rotatably mounted on the connecting ring 310, and a torsion spring 330 is provided at the contact position between the swing plate 320 and the connecting ring 310. The torsion spring 330 is used to drive the swing plate 320 to swing towards the center of the connecting ring 310 to seal the insertion hole 210. Figure 7 As shown;

[0039] Please see Figure 6 and Figure 9The adsorption assembly 400 includes a hollow tube 410, an outer sleeve 420, and a return spring 430 disposed between the outer sleeve 420 and the hollow tube 410. One end of the hollow tube 410 is provided with a suction cup 411, and a positioning groove 412 is formed on the end of the hollow tube 410 away from the suction cup 411. The end of the outer sleeve 420 is provided with a notch 421. A blocking pin 321 matching the notch 421 is provided on the outer wall of one of the swing plates 320. Rotating the outer sleeve 420 drives the swing plate 320 away from the center of the connecting ring 310, thereby releasing the blockage of the insertion hole 210. Figure 9 As shown, the hollow tube 410 is inserted into the negative pressure box 200.

[0040] The process for adjusting the fixed position of the adsorption component 400 according to the product position inside the mold 23 is as follows:

[0041] Put mold 23 in the open state, and move negative pressure box 200 into cavity by translation bracket 100 to determine the alignment of product insertion hole 210 at this time.

[0042] The adsorption assembly 400 is fixed to the target insertion hole 210. Specifically, the operator holds the outer sleeve 420 and pushes it into the target insertion hole 210. After the outer sleeve 420 is obstructed, it is rotated to ensure that the blocking pin 321 falls into the notch 421. At this time, the insertion hole 210 is blocked by the swing plate 320, as... Figure 7 As shown, the hollow tube 410 is blocked and cannot extend into the negative pressure box 200, as Figure 8 As shown.

[0043] Next, continue rotating the outer sleeve 420. The inner wall of the notch 421 abuts against the blocking pin 321, generating a thrust that pushes the oscillating piece 320. Since adjacent oscillating pieces 320 are in contact with each other, the thrust generated by the rotation of the outer sleeve 420 can be transmitted to each oscillating piece 320. Continuous force causes the oscillating piece 320 to overcome the elastic force of the torsion spring 330 and oscillate. After oscillating, the oscillating piece 320 no longer blocks the insertion hole 210. Figure 9 As shown, at this time, the suction cup 411 can be pressed to push the hollow tube 410 into the negative pressure box 200.

[0044] After the hollow tube 410 is pushed into the negative pressure box 200, the external force applied to the outer sleeve 420 is removed. The swing plate 320 will swing back towards the center of the connecting ring 310 under the elastic force of the torsion spring 330 and be stuck on the outer wall of the hollow tube 410. At this time, the pressure applied to the suction cup 411 is slowly reduced, and the return spring 430 will push the hollow tube 410 to slide away from the negative pressure box 200 until the positioning groove 412 is aligned with the swing plate 320. The swing plate 320 sinks into the positioning groove 412 and locks the hollow tube 410, thereby fixing the adsorption assembly 400 on the target insertion hole 210. Figure 10 As shown.

[0045] The return spring 430 is disposed between the outer sleeve 420 and the hollow tube 410. When the hollow tube 410 is locked, the elastic force provided by the return spring 430 will also act on the outer sleeve 420, keeping it abutting against the wall of the insertion hole 210 to ensure a seal. Preferably, the insertion hole 210 is provided with a step 211, and the outer sleeve 420 abuts against the step 211 after extending into the insertion hole 210.

[0046] When a change of production task is required, the adsorption component 400 can be disassembled and re-fixed onto the corresponding insertion hole 210 according to the above procedure. There is no need to replace the parts on the robotic arm, saving equipment manufacturing costs.

[0047] The specific disassembly method is as follows:

[0048] Holding the outer sleeve 420 and rotating it causes the oscillating plate 320 to oscillate again, allowing it to leave the positioning groove 412. The hollow tube 410 will then automatically pop out under the action of the return spring 430, disengaging the adsorption assembly 400 from the negative pressure box 200. After releasing the outer sleeve 420, the oscillating plate 320 can reset under the action of the torsion spring 330 and re-seal the insertion hole 210, ensuring that only the insertion hole 210 of the adsorption assembly 400 on the negative pressure box 200 is open, preventing air leakage and a decrease in adsorption force.

[0049] Please see Figure 9 In one embodiment, a stop surface 322 and an inclined surface 323 are provided on one end of the swing piece 320 facing the center of the connecting ring 310. The inclined surface 323 is in contact with the stop surface 322 on the adjacent swing piece 320. A sealing gasket (not shown) is attached to both the stop surface 322 and the inclined surface 323 to improve the airtightness between the swing pieces 320.

[0050] Preferably, the thickness of the oscillating piece 320 is less than the width of the positioning groove 412. This ensures that the positioning groove 412 can be smoothly inserted when aligned with the oscillating piece 320.

[0051] Please see Figure 10 In one embodiment, a limiting ring 413 is provided at the end of the hollow tube 410 away from the suction cup 411, and a groove 422 is provided on the outer sleeve 420 for receiving the limiting ring 413. The limiting ring 413 and the groove 422 cooperate to restrict the sliding formation of the hollow tube 410 and ensure the structural stability of the adsorption assembly 400.

[0052] Please see Figure 4 In one embodiment, multiple insertion holes 210 are arranged in a rectangular array on the negative pressure box 200, so that the negative pressure box 200 provides multiple insertion positions, allowing the adsorption component 400 to flexibly change its fixed position according to the actual production situation.

[0053] Please see Figure 6 In one embodiment, a wrench position 423 is provided on the outer wall of the outer jacket 420 to facilitate the operator to rotate the outer jacket 420 when assembling and disassembling the adsorption assembly 400.

[0054] The aforementioned injection molding part picking structure 10 can fix the adsorption component 400 on the corresponding insertion hole 210 according to the distribution position of the product inside the mold, and the adsorption component 400 and the negative pressure plate are detachably connected; when the production task changes, the position of the adsorption component 400 on the negative pressure plate can be flexibly adjusted according to the actual situation, and the debugging operation is simple and the equipment maintenance difficulty is low.

[0055] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A material feeding structure for injection molded parts, characterized in that, include: Translation bracket, negative pressure box, multiple sealing components and multiple adsorption components; The negative pressure box has multiple insertion holes, and each insertion hole is provided with a sealing component; The sealing assembly includes a connecting ring and a plurality of swing plates. The swing plates are rotatably disposed on the connecting ring, and a torsion spring is provided at the position on the swing plate that contacts the connecting ring. The torsion spring is used to drive the swing plate to swing toward the center of the connecting ring to seal the insertion hole. The adsorption assembly includes a hollow tube, an outer sleeve, and a return spring disposed between the outer sleeve and the hollow tube. One end of the hollow tube is provided with a suction cup, and a positioning groove is provided on the end of the hollow tube away from the suction cup. The end of the outer sleeve is provided with a notch, and a blocking pin matching the notch is provided on the outer wall of one of the swing pieces. Rotating the outer sleeve is used to drive the swing piece away from the center of the connecting ring to release the blockage of the insertion hole and allow the hollow tube to extend into the negative pressure box.

2. The injection molding part feeding structure according to claim 1, characterized in that, The oscillating plate has a stop surface and an inclined surface at one end facing the center of the connecting ring, and the inclined surface is in contact with the stop surface on the adjacent oscillating plate.

3. The injection molding part feeding structure according to claim 2, characterized in that, Both the stop surface and the inclined surface are fitted with sealing gaskets.

4. The injection molding part feeding structure according to claim 1, characterized in that, The number of oscillating plates is 6.

5. The injection molding part feeding structure according to claim 1, characterized in that, The thickness of the oscillating piece is less than the width of the positioning groove.

6. The injection molding part feeding structure according to claim 1, characterized in that, A limiting ring is provided at one end of the hollow tube away from the suction cup, and a groove is provided on the outer sleeve for receiving the limiting ring.

7. The injection molding part feeding structure according to claim 1, characterized in that, The plurality of the insertion holes are arranged in a rectangular array on the negative pressure box.

8. The injection molding part feeding structure according to claim 1, characterized in that, The insertion hole has a step, which is used to block the outer casing.

9. The injection molding part feeding structure according to claim 1, characterized in that, The outer wall of the jacket is provided with a wrench position.

10. The injection molding part feeding structure according to claim 1, characterized in that, The sealing component is located inside the negative pressure box.

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