Pre-filling needle leak detection machine

Abstract

The utility model discloses a pre-filling needle leak detection machine which comprises a bottle inlet channel, a variable pitch auger and a bottle outlet channel which are sequentially connected, the pitch of the variable pitch auger is increased along the conveying direction, a leak detection module and a movable barrier are sequentially arranged along the conveying direction of the variable pitch auger, and the movable barrier can move relative to the variable pitch auger and is used for rejecting waste; according to the utility model, the leak detection module and the movable barrier are arranged along the variable-pitch auger, so that the occupied space can be effectively reduced, and the variable-pitch auger of which the pitch is increased along the conveying direction is adopted in consideration of the accuracy of rejecting.

Description

Technical Field

[0001] The utility model relates to the technical field of pre-filling needle leakage detection, in particular to a pre-filling needle leakage detection machine. Background Art

[0002] In the past, the pre-filled needle leak detection module was integrated into the light inspection turntable, but the market currently has a demand for separate leak detection, such as the electronic micropore leak detector for pre-filled syringes with patent number 202123207811.3, which includes a detection frame, a bottle feed track is provided at the upper left end of the detection frame, and the lower right end of the bottle feed track is installed together with the auger transmission device, and a detection assembly is provided on one side of the auger transmission device. The right end of the auger transmission device is connected to the active dial assembly, and the upper end of the active dial assembly is matched with a plug detection structure installed on the detection frame, and the right side of the active dial assembly is connected to the driven dial assembly. A protective cover is provided at the upper outer end of the detection frame, and one side of the protective cover is connected to an exhaust device. The technical solution described in this patent, in which the feed track, the auger transmission device, the active dial assembly, and the driven dial assembly are connected in sequence, has high space requirements and is not suitable for use in spaces with limited space. Utility Model Content

[0003] The purpose of the utility model is to provide a pre-filling needle leak detector, which solves the problem that the existing pre-filling needle leak detector has high space requirements and is not suitable for use in spaces with limited space.

[0004] The present invention is implemented as follows: a pre-filled needle leak detector comprises a bottle inlet channel, a variable pitch auger and a bottle outlet channel which are connected in sequence, wherein the pitch of the variable pitch auger increases along the conveying direction, and leak detection modules and movable fences are sequentially provided along the conveying direction of the variable pitch auger, wherein the movable fence can move relative to the variable pitch auger for rejecting waste.

[0005] After the pre-filling needle enters the bottle inlet channel, it is sorted by the action of the variable-pitch auger, and the leak detection module on the variable-pitch auger detects the pre-filling needle. The qualified ones pass the bottle outlet channel and enter the next process. The unqualified pre-filling needles, when passing through the movable fence, move relative to the variable-pitch auger through the movable fence, so that the unqualified products fall and are collected. Compared with the prior art in which the waste kicking and detection are both arranged at the output end of the auger, the leak detection module and the movable fence in the utility model are arranged along the variable-pitch auger, which can effectively reduce the space occupied. Considering the accuracy of waste rejection, a variable-pitch auger with an increased pitch along the conveying direction is adopted.

[0006] A further technical solution of this utility model is that the movable fence is positioned to the side of the variable-pitch auger and forms a space between the movable fence and the variable-pitch auger to accommodate the pre-filling needle. The movable fence can be moved to open the space to remove waste. The pre-filling needle is positioned and conveyed forward by the variable-pitch auger and the movable fence. When the leak detection module detects a defective product, the controller controls the movable fence to open, causing one side of the pre-filling needle to lose its position and fall for recovery.

[0007] A further technical solution of this utility model is that the variable-pitch auger is equipped with a guide fence, one end of which interfaces with the bottle inlet channel and the other end interfaces with the bottle outlet channel via a movable fence. The guide fence cooperates with the variable-pitch auger to ensure stable operation of the pre-filling needle along the conveying direction, and the activation of the movable fence is controlled based on the detection results of the pre-filling needle.

[0008] A further technical solution of the present invention is that the prefilling needle is hung on the guide fence. Taking into account the particularity of the prefilling needle, the top of the prefilling needle is a flange, and during transportation, the flange is hung on the guide fence to achieve positioning.

[0009] A further technical solution of this utility model is that the leak detection module is placed below the variable-pitch auger. The prefill needle is positioned at the top and passes through the bottle body and bottle tip of the variable-pitch auger for detection by the leak detection module. The detection module can be placed below the variable-pitch auger, effectively saving space while not affecting product detection.

[0010] A further technical solution of the present invention is that the leak detection module includes a first leak detection component and a second leak detection component. The first leak detection component is used to detect the tip of the prefilling needle, and the second leak detection component is used to detect the prefilling needle bottle. The prefilling needle is inspected at the bottle tip and the bottle body to ensure the accuracy of the leak detection.

[0011] A further technical solution of the present invention is that the first leak detection assembly includes a first transmitter and a first receiver. The first transmitter is located at the end of the prefilling needle, and the first receiver is located to the side of the prefilling needle. The first transmitter emits a signal, which passes through the bottle tip and is received by the first receiver. The signal received by the first receiver determines whether the prefilling needle tip is qualified.

[0012] A further technical solution of the present invention is that the second leak detection assembly includes a second transmitter and a second receiver, which are respectively placed on either side of the prefilling needle. The signal transmitted by the second transmitter passes through the bottle and is received by the second receiver. The second receiver transmits the signal to a processor for processing and then determines whether the bottle is qualified.

[0013] The beneficial effects of the present invention are as follows: after the pre-filling needle enters the bottle inlet channel, it is sorted by the action of the variable-pitch auger, and the leak detection module on the variable-pitch auger detects the pre-filling needle. The qualified ones pass the bottle outlet channel and enter the next process. The unqualified pre-filling needles, when passing through the movable fence, move relative to the variable-pitch auger through the movable fence, so that the unqualified products fall and are collected; compared with the prior art in which the waste kicking and detection are both arranged at the output end of the auger, the leak detection module and the movable fence in the present invention are arranged along the variable-pitch auger, which can effectively reduce the space occupied. Considering the accuracy of waste rejection, a variable-pitch auger with an increased pitch along the conveying direction is adopted. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a top view of a pre-filled needle leak detector provided by the utility model;

[0015] Figure 2 This is a structural diagram of a pre-filled needle leak detector provided by the utility model;

[0016] Figure 3 The utility model provides Figure 2 Rear view;

[0017] Figure 4 It is a structural diagram of the first leak detection assembly provided by the utility model;

[0018] Figure 5 It is a structural schematic diagram of the second leak detection component provided by the utility model.

[0019] Reference numerals: 1. Bottle inlet channel, 2. Variable pitch auger, 3. Bottle outlet channel,

[0020] 4. Leak detection module, 41. First leak detection component, 42. Second leak detection component, 411. First transmitter, 412. First receiver, 421. Second transmitter, 422. Second receiver,

[0021] 5. Movable fence, 6. Guide fence, 10. Prefilling needle. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0023] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology, and are not used to limit the conditions for implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0024] Example 1:

[0025] Figure 1-5 A pre-filled needle leak detector is shown, comprising a bottle inlet channel 1, a variable pitch auger 2 and a bottle outlet channel 3 connected in sequence. The pitch of the variable pitch auger 2 increases along the conveying direction. A leak detection module 4 and a movable fence 5 are sequentially provided along the conveying direction of the variable pitch auger 2. The movable fence 5 can move relative to the variable pitch auger 2 for rejecting waste.

[0026] After the pre-filling needle enters the bottle inlet channel, it is sorted by the action of the variable-pitch auger, and the leak detection module on the variable-pitch auger detects the pre-filling needle. The qualified ones pass the bottle outlet channel and enter the next process. The unqualified pre-filling needles, when passing through the movable fence, move relative to the variable-pitch auger through the movable fence, so that the unqualified products fall and are collected. Compared with the prior art in which the waste kicking and detection are both arranged at the output end of the auger, the leak detection module and the movable fence in the utility model are arranged along the variable-pitch auger, which can effectively reduce the space occupied. Considering the accuracy of waste rejection, a variable-pitch auger with an increased pitch along the conveying direction is adopted.

[0027] In this embodiment, the movable fence 5 is positioned to the side of the variable-pitch auger 2, forming a space between the movable fence and the variable-pitch auger 2 for accommodating the pre-filling needle. The movable fence 2 can be moved to open the space to remove waste. The pre-filling needle is positioned and transported forward by the variable-pitch auger and the movable fence. When the leak detection module detects a defective product, the controller controls the movable fence to open, causing one side of the pre-filling needle to lose its position and fall for recovery.

[0028] In this embodiment, the movable fence is connected to the linear motor. When unqualified products pass through, the movable fence rotates relative to the variable pitch auger, so that one end of the accommodating space is opened and the unqualified products fall out.

[0029] In this embodiment, the variable-pitch auger 2 is provided with a guide fence 6, one end of which interfaces with the bottle inlet channel 1 and the other end interfaces with the bottle outlet channel 3 via a movable fence 5. The guide fence cooperates with the variable-pitch auger to ensure stable operation of the prefilling needle along the conveying direction, and the activation of the movable fence is controlled based on the detection results of the prefilling needle.

[0030] In this embodiment, after the pre-filling needle enters the bottle inlet channel, it passes through the action of the variable-pitch auger and the guide fence, and moves steadily along the variable-pitch auger. When the leak detection module detects that the pre-filling needle is a qualified product, the pre-filling needle passes smoothly between the movable fence and the variable-pitch auger and enters the bottle outlet channel; when the pre-filling needle is detected to be an unqualified product, when the pre-filling needle moves to the movable fence, the movable fence moves relative to the variable-pitch auger, causing the unqualified products to fall.

[0031] In this embodiment, the prefilling needle 10 is suspended on the guide fence 6. Considering the particularity of the prefilling needle, the top of the prefilling needle is a flange, and during transportation, the prefilling needle is suspended on the guide fence to achieve positioning.

[0032] In this embodiment, the leak detection module 4 is placed below the variable-pitch auger 2. The prefilling needle is positioned at the top and passes through the bottle body and bottle tip of the variable-pitch auger for detection by the leak detection module. The detection module can be placed below the variable-pitch auger, effectively saving space while not affecting product detection.

[0033] In this embodiment, the leak detection module 4 includes a first leak detection component 41 and a second leak detection component 42. The first leak detection component 41 is used to detect the tip of the prefilling needle 10, and the second leak detection component 42 is used to detect the bottle body of the prefilling needle 10. The prefilling needle is inspected at the bottle tip and the bottle body to ensure the accuracy of the leak detection.

[0034] In this embodiment, the first leak detection assembly 41 includes a first transmitter 411 and a first receiver 412. The first transmitter 411 is placed at the end of the prefilling needle 10, and the first receiver 412 is placed on the side of the prefilling needle 10. The first transmitter emits a signal, which passes through the bottle tip and is received by the first receiver. The signal received by the first receiver determines whether the prefilling needle tip is qualified.

[0035] In this embodiment, the first emitter is placed at the bottom of the pre-filling needle, and the second emitter is placed at the side of the pre-filling needle.

[0036] In this embodiment, the second leak detection assembly 42 includes a second transmitter 421 and a second receiver 422, which are respectively placed on either side of the prefilling needle 10. The signal emitted by the second transmitter passes through the bottle and is received by the second receiver. The second receiver transmits the signal to the processor for processing and then determines whether the bottle is qualified.

[0037] In this embodiment, the second transmitter and the second receiver are respectively placed on both sides of the prefilling needle.

[0038] In this embodiment, the prefilling needle can enter the bottle outlet channel only when both the first leak detection component and the second leak detection component are judged to be qualified products; as long as one of them is detected as unqualified, the unqualified prefilling needle will be collected through rejection.

[0039] In this embodiment, the bottle inlet channel and the bottle outlet channel are both downwardly inclined structures, which facilitates the feeding and discharging of the prefilled needle. Figure 2 shown.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A prefilled needle leak detector, characterized in that: The invention comprises a bottle inlet channel (1), a variable pitch auger (2) and a bottle outlet channel (3) which are connected in sequence. The pitch of the variable pitch auger (2) increases along the conveying direction. A leak detection module (4) and a movable fence (5) are sequentially provided along the conveying direction of the variable pitch auger (2). The movable fence (5) can be moved relative to the variable pitch auger (2) for rejecting waste.

2. A prefilled needle leak detector according to claim 1, characterized in that: The movable fence (5) is placed on the side of the variable pitch auger (2) and forms a storage space for accommodating pre-filled needles between the movable fence (5) and the variable pitch auger (2). The movable fence (5) can movably open the storage space for kicking out waste.

3. The prefilled needle leak detector according to claim 1, characterized in that: The variable pitch auger (2) is provided with a guide fence (6), one end of the guide fence (6) is connected to the bottle inlet channel (1), and the other end is connected to the bottle outlet channel (3) through a movable fence (5).

4. A prefilled needle leak detector according to claim 3, characterized in that: The prefilling needle (10) is suspended on the guide fence (6).

5. The prefilled needle leak detector according to claim 3, characterized in that: The leak detection module (4) is placed below the variable pitch auger (2).

6. The prefilled needle leak detector according to claim 1, characterized in that: The leak detection module (4) comprises a first leak detection component (41) and a second leak detection component (42), wherein the first leak detection component (41) is used for detecting the end of the prefilling needle (10), and the second leak detection component (42) is used for detecting the bottle body of the prefilling needle (10).

7. The prefilled needle leak detector according to claim 6, characterized in that: The first leak detection assembly (41) comprises a first transmitter (411) and a first receiver (412), wherein the first transmitter (411) is placed at the end of the pre-filling needle (10), and the first receiver (412) is placed at the side of the pre-filling needle (10).

8. The prefilled needle leak detector according to claim 6, characterized in that: The second leak detection component (42) comprises a second transmitter (421) and a second receiver (422), and the second transmitter (421) and the second receiver (422) are respectively placed on both sides of the pre-filling needle (10).

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