Injection molding machine embryo suction cylinder

Abstract

The utility model relates to the technical field of embryo suction cylinder, specifically relates to a injection molding mechanical hand embryo suction cylinder, including main part, the main part includes coaxial arrangement, the inside diameter gradually reduces big diameter section, medium diameter section and small diameter section, the big diameter section far from the one end of medium diameter section is used for the import of bottle embryo top entrance, the inside of import is provided with first circular surface, the setting of first circular surface compares to the originally 90 degrees'step, is more smooth, the import and export of bottle embryo are convenient, can reduce the occurrence of jam phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of blank suction cylinder technology, specifically to a blank suction cylinder for injection molding robots. Background Technology

[0002] Currently, the injection molding process in large-volume parenteral solution production includes: material feeding, heating, melting, injection, pressure holding, cooling, mold opening, ejection, and robotic preform removal. Among these, the preform suction cylinder on the robotic preform removal shaft is a crucial quality control point in the entire injection molding process, directly affecting the appearance quality of the preform. It plays a vital role in the preform removal and transfer process. The design of the preform suction cylinder is a critical core component of the robotic preform removal system.

[0003] The preform suction cylinder on the preform removal robot is made of polytetrafluoroethylene plastic. After a period of use, the cylinder often cracks, causing air leakage at the cracks during the preform suction process, preventing the preform from being sucked up, which seriously affects production output. Furthermore, the plastic debris generated after the plastic preform suction cylinder cracks can enter the product, leading to foreign object complaints and seriously affecting product quality.

[0004] During the process of sucking in the preform, the preform often gets stuck at the inlet and cannot be sucked in. The main reason for this is that the resistance of the 90-degree step is too great, which leads to poor preform suction and frequent preform jamming. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a preform suction cylinder for injection molding robots to solve the problem that the preform often gets stuck at the inlet and cannot be sucked in during the preform suction process in the prior art. The main reason for this is that the resistance of the 90-degree step is too large, which leads to the problem of unsmooth preform suction and frequent preform jamming failures.

[0006] A preform suction cylinder for injection molding includes a main body, which includes a large diameter section, a medium diameter section and a small diameter section arranged coaxially and whose inner diameters decrease sequentially; the end of the large diameter section away from the medium diameter section is an inlet for the top of the preform to enter, and a first arc surface is provided on the inner side of the inlet.

[0007] Furthermore, a second arc surface is provided on the outer side of the inlet.

[0008] Furthermore, openings are symmetrically provided on both sides of the large-diameter section.

[0009] Furthermore, a reduced diameter section is provided between the large diameter section and the medium diameter section, and the inner diameter of the reduced diameter section gradually decreases from the large diameter section to the small diameter section.

[0010] Furthermore, the inner diameter of the reduced diameter section near the larger diameter section is the same as the inner diameter of the larger diameter section.

[0011] Furthermore, the inner diameter of the reduced diameter section near the middle diameter section is the same as the inner diameter of the middle diameter section.

[0012] Furthermore, a positioning hole is provided at the end of the smaller diameter section that is away from the middle diameter section.

[0013] Furthermore, the main body is made of metallic material.

[0014] Furthermore, the large-diameter section, the reduced-diameter section, the medium-diameter section, and the small-diameter section are integrally formed.

[0015] Beneficial effects: The inner side of the inlet is provided with a first arc surface, which is smoother than the original 90-degree step, making it easier for the preform to enter and exit and reducing the occurrence of jamming. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 3 This is a cross-sectional view of an embodiment of the present utility model; Figure 4 for Figure 3 A three-dimensional image.

[0018] In the diagram: 1. Main body; 101. Large diameter section; 1011. Opening; 1012. First arc surface; 1013. Second arc surface; 102. Reduced diameter section; 103. Middle diameter section; 104. Small diameter section; 1041. Positioning hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0020] It should be noted that the embodiments and features involved in the embodiments of this utility model can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0021] like Figures 1-4 The injection molding robot suction cylinder shown includes a main body 1. The main body 1 includes a large diameter section 101, a medium diameter section 103 and a small diameter section 104 arranged coaxially and with decreasing inner diameters. The end of the large diameter section 101 away from the medium diameter section 103 is an inlet for the top of the preform to enter. A first arc surface 1012 is provided on the inner side of the inlet.

[0022] In this embodiment, the first arc surface 1012 is smoother than the original 90-degree step, which facilitates the entry and exit of the preform and reduces the occurrence of jamming.

[0023] A second arc surface 1013 is provided on the outer side of the inlet.

[0024] In this embodiment, the second arc surface 1013 is provided to avoid the end being too sharp and damaging the object it contacts, mainly to avoid damaging the preform.

[0025] The large-diameter section 101 has symmetrical openings 1011 on both sides.

[0026] In this embodiment, the opening 1011 is provided to offer a larger area for movement, while leaving a buffer space for deformation of the preform body. The opening 1011 is mainly for facilitating the movement of the preform.

[0027] A narrowing section 102 is provided between the large diameter section 101 and the medium diameter section 103. The inner diameter of the narrowing section 102 gradually decreases from the large diameter section 101 to the small diameter section 104.

[0028] In this embodiment, the reduced diameter section 102 is used to guide the top of the preform, facilitating the entry of the preform.

[0029] The inner diameter of the narrowed section 102 near the large diameter section 101 is the same as the inner diameter of the large diameter section 101.

[0030] In this embodiment, the inner diameter is the same to avoid creating steps that could cause collisions with the preform.

[0031] The inner diameter of the narrowed section 102 near the middle diameter section 103 is the same as the inner diameter of the middle diameter section 103.

[0032] In this embodiment, the inner diameter is the same to avoid creating steps that could cause collisions with the preform.

[0033] A positioning hole 1041 is provided at the end of the small diameter section 104 that is away from the middle diameter section 103.

[0034] In this embodiment, the positioning hole 1041 is used to insert a fastener from the prior art to fix the suction cylinder and prevent the suction cylinder from rotating.

[0035] The main body is made of metal, preferably aluminum alloy.

[0036] In this embodiment, the main body is made of metal, which can prevent cracking and minimize the generation of debris. The large-diameter section 101, the reduced-diameter section 102, the medium-diameter section 103, and the small-diameter section 104 are integrally formed, resulting in a stronger overall structure.

[0037] Working principle: The preform suction cylinder is fixed by the fastener in the prior art. The vacuum device in the prior art is activated to suck up the preform through the hole in the small diameter section 104 of the preform suction cylinder. The top of the preform moves sequentially along the inside of the large diameter section 101 into the narrow diameter section 102 and the medium diameter section 103, and then stops moving. The moving mechanism in the prior art moves the preform suction cylinder to the designated position and then puts it down, and the preform is detached from the preform suction cylinder.

[0038] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if such modifications and modifications fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and modifications.

Claims

1. A preform suction cylinder for injection molding, characterized in that, It includes a main body, which comprises a large diameter section, a medium diameter section, and a small diameter section arranged coaxially and whose inner diameters decrease sequentially; the end of the large diameter section away from the medium diameter section is an inlet for the top of the preform to enter, and a first arc surface is provided on the inner side of the inlet.

2. The injection molding robot's preform suction cylinder according to claim 1, characterized in that, A second arc surface is provided on the outer side of the inlet.

3. The injection molding robot's preform suction cylinder according to claim 2, characterized in that, The large-diameter section has symmetrical openings on both sides.

4. The injection molding robot's preform suction cylinder according to any one of claims 1-3, characterized in that, A narrowing section is provided between the large diameter section and the medium diameter section, and the inner diameter of the narrowing section gradually decreases from the large diameter section to the small diameter section.

5. The injection molding robot's preform suction cylinder according to claim 4, characterized in that, The inner diameter of the reduced diameter section near the larger diameter section is the same as the inner diameter of the larger diameter section.

6. The injection molding robot's preform suction cylinder according to claim 4, characterized in that, The inner diameter of the reduced diameter section near the middle diameter section is the same as the inner diameter of the middle diameter section.

7. The injection molding robot's preform suction cylinder according to claim 4, characterized in that, A positioning hole is provided at the end of the smaller diameter section that is away from the middle diameter section.

8. The injection molding robot's preform suction cylinder according to claim 4, characterized in that, The main body is made of metallic material.

9. The injection molding robot's preform suction cylinder according to claim 4, characterized in that, The large-diameter section, the reduced-diameter section, the medium-diameter section, and the small-diameter section are integrally formed.

Images