Device applied to detection of injection-molded end socket

Abstract

The invention discloses a device for detecting an injection-molded end socket, which comprises a workbench and further comprises a positioning mechanism, the positioning mechanism comprises a mounting base, the mounting base is mounted on the workbench, and a positioning assembly for positioning the end socket is arranged on the mounting base; the sealing head detection device comprises a workbench, a positioning mechanism and a sectional type driving mechanism, the sectional type driving mechanism comprises a first sleeve rod, the first sleeve rod is installed on the workbench, the workbench is further provided with a sectional type driving assembly used for driving a positioning assembly on the positioning mechanism to rotate and position, and the sectional type driving assembly is in transmission connection with the first sleeve rod. Through magnetic coupling of the first permanent magnet and the second permanent magnet, the motor can drive the positioning mechanism to rotate so as to clamp and position the end socket, when the positioning mechanism clamps and positions the end socket, the continuous rotation process of the sectional driving assembly cannot be interrupted when the positioning mechanism is clamped, and therefore the motor is effectively protected, and accidents are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of end cap detection equipment, and more particularly to an end cap detection device used for injection molding. Background Art

[0002] The end cap refers to the component used to seal the end of the container to isolate the internal and external media, also known as the end cap. The end caps of cylindrical containers are generally rotating shells. According to the shape of the end cap surface, it can be divided into convex, conical, flat and combined shapes. A convex end cap refers to an end cap with a convex outer surface, such as a hemispherical, elliptical, dish-shaped and spherical end cap without folding edges. Some gas cylinders use a combined bottom end cap with the convex surface facing inward, which can not only ensure strength but also meet the needs of safe use; and the common end cap detection mechanism contains an end cap air tightness detection device. There are two main working principles of non-destructive gas detection of air tightness detectors, one is the pressure drop method, and the other is the differential pressure method. The pressure drop method is the pressure drop method, which is to detect the change in gas pressure after equal constant pressure intake and balance. The air tightness and waterproof tester system undergoes a series of sampling, calculation, and comparison to obtain leakage values, etc., and compares some data with the set parameters to give a qualified or unqualified judgment result.

[0003] The Chinese patent with publication number CN105043677A discloses a head air tightness detection device, including an upward device and a downward device. The upward device is provided with a group of aeration pipes inside, and an air pump is provided on the top to provide gas for the aeration pipes. The bottom of the upward device is an upper clamp; the top of the downward device is a lower clamp, and the top of the side wall is provided with a water inlet, the middle is provided with an observation port, and the bottom is provided with a water outlet; the upward device and the downward device are controlled by a mechanical arm and can move towards each other. Compared with the traditional technology, this technical solution can greatly improve the efficiency of detecting the air tightness of the head. At the same time, it only needs to observe whether bubbles are generated, which is relatively simple. The design of the entire device is scientific and reasonable, and it occupies a small area, which is suitable for laboratory use.

[0004] When the device performs air tightness detection on the head, it mainly detects the air tightness of the head by observing whether there are bubbles in the water. During this inspection process, the head needs to be clamped and positioned. Some circumferential positioning clamping devices in existing devices still apply an axial clamping force to the outer wall of the head after contact clamping the outer wall of the head under the drive of the motor. This behavior may cause certain damage to the motor. For this reason, we propose a head detection device that can protect the motor while detecting the positioning of the head. Summary of the invention

[0005] In view of the deficiencies in the background technology, the present invention aims to provide a device for detecting a head used in injection molding.

[0006] To achieve the above object, the present invention provides the following technical solutions: A device for detecting a head used in injection molding comprises a workbench, the head detection device further comprises a positioning mechanism, which comprises a mounting base, the mounting base is mounted on the workbench, and a positioning component for positioning the head is provided on the mounting base; The segmented driving mechanism comprises a sleeve rod 1, which is installed on a workbench. The workbench is also provided with a segmented driving component for driving a positioning component on a positioning mechanism to rotate and position, and the segmented driving component is transmission-connected to the sleeve rod 1.

[0007] Preferably, the positioning assembly includes a mounting frame arranged on the mounting base, and there are multiple mounting frames, and the axes of the multiple mounting frames are evenly distributed in a circle. The mounting frame is a cross-shaped structure, and a rotating disk is rotatably provided between the shoulder of the mounting frame and the mounting base, and a permanent magnet 1 is coaxially distributed on the rotating disk, and a connecting block for connecting the rotating disk is provided on the permanent magnet 1, and an anti-reversal positioning member for preventing rotation when positioning the head is movably provided on the mounting frame, and an unlocking and resetting member for resetting the anti-reversal positioning member is movably provided on the anti-reversal positioning member.

[0008] Preferably, the anti-reverse positioning member includes a non-reverse portion movably arranged on the mounting frame, a rotating portion is rotatably provided on the non-reverse portion, and anti-reverse teeth are provided at the joint between the rotating portion and the non-reverse portion, a connecting rod is fixedly provided at one end of the rotating portion, a hinge portion is rotatably provided at the other end of the connecting rod, and the other end of the connecting rod is rotatably connected to a positioning protrusion through the hinge portion, a limiting column 2 is provided on the positioning protrusion to limit the position of the hinge portion and is rotatably connected to the hinge portion, and the positioning protrusion is also provided with a limiting column 1, the limiting column 2 is rotatably connected to a permanent magnet 1, and the limiting column 1 is rotatably connected to a rotating disk.

[0009] Preferably, the unlocking and resetting member includes a pressing portion movably arranged on the non-return portion and the rotating portion, a limiting groove is arranged on the mounting frame, the non-return portion is partially located in the limiting groove and is limited by the limiting groove, a reset spring 1 is also arranged in the limiting groove, both ends of the reset spring 1 are respectively connected to the mounting frame and the non-return portion, a sliding groove is arranged in the pressing portion, a movable column is slidably arranged in the sliding groove, the other end of the movable column abuts the mounting frame, and a reset spring 2 is sleeved on the outer circumferential surface of the movable column.

[0010] Preferably, the minimum angle of the teeth on the non-return part and the rotating part is 30 degrees and both are right-angled triangles. Under normal conditions, the teeth of the non-return part and the rotating part fit tightly and seamlessly with each other.

[0011] Preferably, the segmented driving member includes a sleeve rod four, one end of which is provided with a first thread groove, the other end of which is provided with a connecting frame, the connecting frame is provided with a permanent magnet two, and one end of the sleeve rod four is transmission-connected to the output end of the motor.

[0012] Preferably, a sleeve rod three is rotatably sleeved on the outer circumference of the sleeve rod four, a sleeve rod two is rotatably sleeved on the outer circumference of the sleeve rod three, and a sleeve rod one is rotatably sleeved on the outer circumference of the sleeve rod two. The sleeve rod three, the sleeve rod two and the sleeve rod one are respectively provided with a first thread groove, a second thread groove and a third thread groove near one end of the motor, and the sleeve rod four, the sleeve rod three and the sleeve rod two are all provided with limit blocks near one end of the motor. The limit blocks on the sleeve rod four, the sleeve rod three and the sleeve rod two extend into the first thread groove, the second thread groove and the third thread groove in turn and are slidably connected to the sleeve rod three, the sleeve rod two and the sleeve rod one.

[0013] Preferably, when the connecting frame is rotated multiple times to the farthest distance by the segmented driving member in the segmented driving mechanism, the connecting frame and the permanent magnet 1 are coaxially distributed, and a certain distance is left between the connecting frame and the permanent magnet 1.

[0014] Preferably, a multi-channel air vent is provided in the sleeve rod four, an air outlet is opened at one end of the sleeve rod four passing through the connecting frame, an air baffle plate for cooperating with the head to form an enclosed space is provided on one end of the sleeve rod four passing through the connecting frame, and the multi-channel air vent is used to inject air into the enclosed space formed by the air baffle plate and the head.

[0015] Preferably, the positioning protrusion is a U-shaped structure, and an anti-slip pad is provided on the peripheral surface of the positioning protrusion.

[0016] Beneficial effects of the present invention: 1. The device for detecting the end cap realizes fast and accurate positioning of the end cap by using multiple mounting frames evenly distributed around the circumference and a rotating disk with a permanent magnet and an anti-reversal positioning piece in the positioning assembly. The anti-reversal positioning piece fits tightly with the right-angled triangle teeth on the rotating part, effectively preventing accidental rotation during the positioning process, improving the stability and accuracy of positioning, and thus ensuring efficient and reliable preparation work before injection molding.

[0017] 2. The head detection device uses the nested design of sleeve rod 1, sleeve rod 2, sleeve rod 3 and sleeve rod 4 through the segmented drive assembly, as well as the motor-driven rotation mechanism, to achieve flexible control and segmented drive of the positioning assembly. This design not only simplifies the transmission structure, but also improves the accuracy and stability of the drive. At the same time, the design of the unlocking and resetting part enables the anti-reversal positioning part to be easily unlocked and reset when needed, which is convenient for subsequent operations and enhances the flexibility and ease of use of the system.

[0018] 3. When the head detection device is lowered to the lowest point and rotates through the segmented drive assembly, the motor can drive the positioning mechanism to rotate through the magnetic coupling of permanent magnet 1 and permanent magnet 2, so as to clamp and position the head. When the positioning mechanism clamps and positions the head and the positioning mechanism is locked, the segmented drive assembly will continue to rotate without interruption, thereby effectively protecting the motor and reducing the occurrence of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the head in the device for detecting the head used in injection molding; Figure 2 An axonometric view of a device for testing end caps used in injection molding; Figure 3 for Figure 2 Axonometric drawing of the center positioning mechanism; Figure 4 It is a schematic diagram of the explosion structure of the positioning member and the anti-reversal member; Figure 5 for Figure 4 A schematic cross-sectional structure diagram of ; Figure 6 It is an axonometric view of the segment drive assembly; Figure 7 for Figure 2 A local enlarged schematic diagram of the middle A; Figure 8 for Figure 6 A local enlarged schematic diagram of point B in the middle.

[0020] In the figure: 100, workbench; 200, positioning mechanism; 201, mounting base; 202, rotating disk; 203, mounting frame; 204, check part; 2041, reset spring 1; 2042, reset spring 2; 2043, movable column; 205, limit column 1; 206, limit column 2; 207, connecting rod; 2071, rotating part; 2072, pressing part; 2073, hinged part; 208, positioning protrusion; 209, permanent magnet 1; 2091, connecting block; 301, sleeve rod 1; 302, sleeve rod 2; 303, sleeve rod 3; 304, sleeve rod 4; 305, limit ring; 306, limit block; 307, connecting frame; 308, permanent magnet 2. DETAILED DESCRIPTION

[0021] Example 1

[0022] See also Figure 1-8 This embodiment introduces a device for detecting a head used in injection molding, including a workbench 100. The head detection device also includes a positioning mechanism 200, which includes a mounting base 201. The mounting base 201 is mounted on the workbench 100. A positioning component for positioning the head is provided on the mounting base 201. The segmented driving mechanism 300 includes a sleeve rod 301, which is installed on the workbench 100. The workbench 100 is also provided with a segmented driving component for driving the positioning mechanism on the positioning mechanism 200 to rotate and position. The segmented driving component is connected to the sleeve rod 301 in a transmission manner.

[0023] The positioning assembly includes a mounting frame 203 arranged on the mounting base 201. There are multiple mounting frames 203, and the multiple mounting frames 203 are evenly distributed in a circle along the axis of the mounting base 201. The mounting frame 203 is a cross-shaped structure. A rotating disk 202 is movably provided between the shoulder of the mounting frame 203 and the mounting base 201. A permanent magnet 209 is coaxially distributed on the rotating disk 202. A connecting block 2091 for connecting the rotating disk 202 is provided on the permanent magnet 209. An anti-reversal positioning member for preventing rotation when positioning the head is movably provided on the mounting frame 203. An unlocking and resetting member for resetting the anti-reversal positioning member is movably provided on the anti-reversal positioning member.

[0024] The anti-reverse positioning member includes a non-reverse portion 204 movably arranged on the mounting frame 203, a rotating portion 2071 is rotatably arranged on the non-reverse portion 204, and anti-reverse teeth are arranged at the joint between the rotating portion 2071 and the non-reverse portion 204, a connecting rod 207 is fixedly arranged at one end of the rotating portion 2071, and a hinge portion 2073 is rotatably arranged at the other end of the connecting rod 207; It also includes a positioning protrusion 208, and the upper and lower ends of the positioning protrusion 208 are respectively penetrated by a limiting column 1 205 and a limiting column 206, and the limiting column 1 205 and the limiting column 206 are both rotatably connected to the positioning protrusion 208, and a gap is left between the limiting column 1 205 and the limiting column 206, and the positioning protrusion 208 is rotatably connected through the hinged cooperation between the limiting column 1 205 and the hinged part 2073, and the other end of the limiting column 206 is rotatably connected to the permanent magnet 1 209, and the other end of the limiting column 1 205 is rotatably connected to the rotating disk 202.

[0025] The unlocking and restoring member includes a pressing portion 2072, and the pressing portion 2072 passes through the rotating portion 2071 and the non-return portion 204 in sequence. A limiting groove for accommodating the pressing of the non-return portion 204 is opened on the mounting frame 203, and a reset spring 2041 is provided in the limiting groove for assisting the reset of the pressed non-return portion 204. The two ends of the reset spring 2041 are respectively connected to the non-return portion 204 and the mounting frame 203. A sliding groove is provided in the pressing portion 2072, and a reset spring 2042 is provided in the sliding groove. A movable column 2043 is also slidably provided, and the two ends of the reset spring 2042 are respectively connected to the pressing portion 2072 and the movable column 2043.

[0026] After the anti-reversal positioning member has stably positioned the head, the pressing portion 2072 is pressed down, so that the movable column 2043 in the pressing portion 2072 that abuts against the mounting frame 203 rises in the sliding groove of the pressing portion 2072. At this time, one end of the movable column 2043 presses the reset spring 2042. At the same time, the pressing portion 2072 overcomes the elastic force of the reset spring 2042 and drives the non-reversal portion 204 to press down the reset spring 1 2041, and the rotating portion 2071 is supported by the limiting column 1 205, so that when the pressing portion 2072 is pressed down a certain distance, the non-reversal portion 204 and the rotating portion 2071 are separated from each other. When the non-reversal portion 204 and the rotating portion 2071 are separated from each other, the anti-reversal teeth on the non-reversal portion 204 and the rotating portion 2071 are disengaged from each other, so that the rotating portion 2071 rotates and drives the connecting rod 207 to reset.

[0027] The minimum angle of the teeth on the non-return part 204 and the rotating part 2071 is 30 degrees, and both are right-angled triangles. Under normal conditions, the teeth of the non-return part 204 and the rotating part 2071 fit tightly and perfectly to each other.

[0028] The positioning protrusion 208 is an arc-shaped structure, and an anti-skid pad is provided on the circumference of the positioning protrusion 208. By setting the anti-skid pad on the positioning protrusion 208, when the positioning protrusion 208 positions the head as the connecting rod 207 rotates, a larger friction force can be generated with the surface of the head, thereby enhancing the stability of the head positioning.

[0029] To summarize, on the workbench 100, the head is clamped and positioned by the positioning mechanism 200, wherein a plurality of mounting frames 203 are evenly distributed in a circle on the mounting base 201, and the plurality of mounting frames 203 limit the rotating disk 202 by a cross-shaped structure, so that the rotating disk 202 can only move within the limiting space formed by the shoulders of the plurality of mounting frames 203 and the mounting base 201. At the same time, the lower end of the positioning assembly is rotatably connected to the rotating disk 202 by a limiting column 1 205, and is rotatably connected to the permanent magnet 1 209 by a limiting column 206. Therefore, when the permanent magnet 1 209 is driven to rotate, the positioning angle of each positioning protrusion 208 in the positioning assembly can be deflected to make it fit the outer wall of the head more closely. At the same time, through the mutual cooperation of the limiting column 1 205 and the limiting column 206, the rotating disk 202 is driven to rotate when the permanent magnet 1 209 rotates, thereby realizing a positioning assembly that can deflect and center the head. The anti-reversal positioning member in the positioning assembly is composed of a non-reversal portion 204 with anti-reversal teeth and a rotating portion 2071. The non-reversal portion 204 and the rotating portion 2071 have the same shape and opposite directions, so that the non-reversal portion 204 can only rotate in one direction on the rotating portion 2071. They are connected to the positioning protrusion 208 through a connecting rod 207 and a hinge portion 2073. When unlocking and resetting is required, the teeth of the non-reversal portion 204 and the rotating portion 2071 are separated by the pressing portion 2072 under the action of the movable column 2043 and the reset spring 2042, and the reset spring 1 2041 assists the non-reversal portion 204 in resetting. The teeth are designed to be a right-angled triangle with a minimum angle of 30 degrees, ensuring a tight fit under normal conditions and effectively preventing rotation when positioning the head. The segmented drive assembly drives the sleeve rod 1 301 to achieve the rotation positioning of the positioning assembly.

[0030] Example 2

[0031] See also Figure 1-8 Another embodiment provided by the present invention: the segmented driving member includes a sleeve rod 4 304, one end of which is provided with a first thread groove, the other end of which is provided with a connecting frame 307, a permanent magnet 2 308 is installed on the connecting frame 307, and one end of the sleeve rod 4 304 is transmission-connected to the output end of the motor.

[0032] A sleeve rod 3 303 is rotatably sleeved on the outer circumference of the sleeve rod 4 304, a sleeve rod 2 302 is rotatably sleeved on the outer circumference of the sleeve rod 303, and a sleeve rod 1 301 is rotatably sleeved on the outer circumference of the sleeve rod 2 302. The sleeve rod 3 303, the sleeve rod 2 302 and the sleeve rod 1 301 are respectively provided with a first thread groove, a second thread groove and a third thread groove near one end of the motor, and the sleeve rod 4 304, the sleeve rod 3 303 and the sleeve rod 2 302 are all provided with a limit block 306 near one end of the motor, and the limit blocks 306 on the sleeve rod 4 304, the sleeve rod 3 303 and the sleeve rod 2 302 extend into the first thread groove, the second thread groove and the third thread groove in turn and are slidably connected to the sleeve rod 3 303, the sleeve rod 2 302 and the sleeve rod 1 301.

[0033] The segmented drive component is composed of sleeve rod four 304, sleeve rod three 303, sleeve rod two 302 and sleeve rod one 301. The outer circumferences of sleeve rod three 303, sleeve rod two 302 and sleeve rod one 301 are all provided with limit rings 305 for preventing sleeve rod three 303, sleeve rod two 302 and sleeve rod one 301 from getting stuck inside when being coaxially recovered. These sleeve rods are realized step-by-step transmission and stable connection through specific thread grooves and limit blocks 306. One end of sleeve rod four 304 is transmission-connected to the output end of the motor, so that the motor can provide rotational power for the entire drive system. The other end of sleeve rod four 304 is installed with a connecting frame 307, and a permanent magnet two 308 is fixed on the connecting frame 307. Such a design facilitates non-contact positioning or interaction with other magnetic components.

[0034] On the outer circumference of the sleeve rod 4 304, the sleeve rod 3 303 is rotatably sleeved, and the sleeve rod 2 302 is rotatably sleeved on the outer circumference of the sleeve rod 303, and the sleeve rod 1 301 is rotatably sleeved on the outer circumference of the sleeve rod 2 302. This step-by-step sleeve structure allows the rotational motion to be transmitted step by step from the sleeve rod 4 304 to the sleeve rod 1 301, realizing multi-stage transmission.

[0035] In order to achieve stable step-by-step transmission, the first thread groove, the second thread groove and the third thread groove are respectively provided on the end of the sleeve rod 303, the sleeve rod 2 302 and the sleeve rod 1 301 close to the motor. At the same time, the sleeve rod 4 304, the sleeve rod 3 303 and the sleeve rod 2 302 close to the motor are all provided with a limit block 306. These limit blocks 306 extend into the thread grooves of adjacent sleeve rods in sequence and are slidably connected with the thread grooves. In this way, when the motor drives the sleeve rod 4 304 to rotate, the sleeve rod 4 304 will drive the sleeve rod 3 303 to rotate through the limit block 306 and the thread groove thereon, and the sleeve rod 3 303 will then drive the sleeve rod 2 302 to rotate through the limit block 306 and the thread groove thereon, and so on, until the drive sleeve rod 1 301 rotates. This design not only realizes the step-by-step transmission of the rotational motion, but also ensures the stable connection and relative position relationship between the sleeve rods at all levels.

[0036] After the connecting frame 307 has rotated to the farthest distance for many times through the segmented driving parts in the segmented driving mechanism 300, the connecting frame 307 and the permanent magnet 1 209 are coaxially distributed, and a certain distance is left between the connecting frame 307 and the permanent magnet 1 209. When the segmented driving component descends to the lowest point and rotates, the permanent magnet 1 209 and the permanent magnet 2 308 are magnetically coupled, so that when the driving end of the motor rotates, the segmented driving mechanism 300 is driven to rotate and fall layer by layer in a progressive manner, so that the segmented driving mechanism 300 continues to extend during the rotation process. When the segmented driving mechanism 300 extends to the bottom, the permanent magnet 2 308 and the permanent magnet 1 209 are magnetically coupled. One 209 is driven to rotate synchronously under the rotation of permanent magnet two 308. When permanent magnet one 209 rotates, the positioning mechanism of embodiment one implements the operation of clamping and positioning the sub-head. When the positioning mechanism has completed clamping and positioning the head, the arc-shaped edge of the positioning protrusion 208 abuts against the outer wall of the head, and the outer wall of the head applies resistance to the abutment of the positioning protrusion 208. At this time, because permanent magnet two 308 is magnetically coupled with permanent magnet one 209, and through the cooperation of the anti-reversal component in the positioning mechanism, the positioning mechanism will not rotate with the pressure applied by the head surface after rotation, so it will not contact the positioning of the head, and will not damage the drive of the motor due to the resistance of the outer wall of the head.

[0037] A multi-channel air vent is provided in the sleeve rod 304. An air outlet is provided at one end of the sleeve rod 304 that passes through the connecting frame 307. An air baffle plate for cooperating with the head to form an enclosed space is provided on one end of the sleeve rod 304 that passes through the connecting frame 307. The multi-channel air vent is used to inject air into the enclosed space formed by the air baffle plate and the head.

[0038] In summary, the segmented drive achieves multi-stage transmission and positioning through the sleeve rod structure. The motor drives the sleeve rod four 304 to rotate, and the first thread groove opened at one end thereof cooperates with the internal thread of the sleeve rod three 303. The sleeve rod three 303 then transmits the rotational motion with the sleeve rod two 302 and the sleeve rod one 301 in sequence through the rotation sleeve relationship of its outer circumference. The end of each sleeve rod close to the motor is respectively provided with a matching thread groove and a limit block 306 to ensure stability and step-by-step transmission during the rotation process. The end of the sleeve rod four 304 is installed with a connecting frame 307 and a permanent magnet two 308. When the connecting frame 307 reaches the farthest distance after multiple rotations, it is coaxial with the permanent magnet one 209 and maintains a certain distance, which is convenient for magnetic or non-contact positioning. In addition, the multi-channel air duct arranged inside the sleeve rod four 304 can inject gas into the enclosed space formed between the air baffle and the head through the air outlet, which is used for specific detection or processing processes, realizing the integration of rotation drive and gas injection functions.

[0039] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A device for detecting a head of an injection molding machine, comprising a workbench (100), characterized in that: The end cap detection device further comprises a positioning mechanism (200), which comprises a mounting base (201), the mounting base (201) being mounted on a workbench (100), and a positioning component for positioning the end cap being provided on the mounting base (201); The segmented drive mechanism (300) comprises a sleeve rod (301), wherein the sleeve rod (301) is mounted on a workbench (100), and the workbench (100) is also provided with a segmented drive component for driving a positioning component on a positioning mechanism (200) to rotate and position, and the segmented drive component is transmission-connected to the sleeve rod (301).

2. The device for detecting a head used in injection molding according to claim 1, characterized in that: The positioning assembly comprises a mounting frame (203) arranged on the mounting base (201); there are a plurality of mounting frames (203), and the plurality of mounting frames (203) are evenly distributed around the axis of the mounting base (201); the mounting frame (203) is a cross-shaped structure; a rotating disk (202) is rotatably provided between the shoulder of the mounting frame (203) and the mounting base (201); a permanent magnet 1 (209) is coaxially distributed on the rotating disk (202); a connecting block (2091) for connecting the rotating disk (202) is provided on the permanent magnet 1 (209); an anti-reversal positioning member for preventing rotation when positioning the sealing head is movably provided on the mounting frame (203); and an unlocking and resetting member for resetting the anti-reversal positioning member is movably provided on the anti-reversal positioning member.

3. The device for detecting a head used in injection molding according to claim 2, characterized in that: The anti-reverse positioning member comprises a non-reverse portion (204) movably arranged on a mounting frame (203); a rotating portion (2071) is rotatably provided on the non-reverse portion (204); anti-reverse teeth are provided at the joint between the rotating portion (2071) and the non-reverse portion (204); a connecting rod (207) is fixedly provided at one end of the rotating portion (2071); a hinge portion (2073) is rotatably provided at the other end of the connecting rod (207); the other end of the connecting rod (207) is rotatably connected to a positioning protrusion (208) via the hinge portion (2073); a second limiting column (206) is provided on the positioning protrusion (208) for limiting the position of the hinge portion (2073) and is rotatably connected to the hinge portion (2073); the positioning protrusion (208) is further provided with a first limiting column (205); the second limiting column (206) is rotatably connected to a permanent magnet (209); and the first limiting column (205) is rotatably connected to a rotating disk (202).

4. The device for detecting a head used in injection molding according to claim 3, characterized in that: The unlocking and restoring member comprises a pressing portion (2072) movably arranged on the non-return portion (204) and the rotating portion (2071); a limiting groove is provided on the mounting frame (203); a portion of the non-return portion (204) is located in the limiting groove and is limited by the limiting groove; a return spring (2041) is also arranged in the limiting groove; two ends of the return spring (2041) are respectively connected to the mounting frame (203) and the non-return portion (204); a sliding groove is provided in the pressing portion (2072); a movable column (2043) is slidably arranged in the sliding groove; the other end of the movable column (2043) abuts against the mounting frame (203); and a return spring (2042) is sleeved on the outer peripheral surface of the movable column (2043).

5. The device for detecting a head used in injection molding according to claim 4, characterized in that: The minimum angle of the teeth on the non-return portion (204) and the rotating portion (2071) is 30 degrees, and both are right-angled triangles. Under normal conditions, the teeth of the non-return portion (204) and the rotating portion (2071) fit closely to each other and fit perfectly.

6. The device for detecting end caps used in injection molding according to claim 5, characterized in that: The segmented driving member comprises a sleeve rod four (304), one end of which is provided with a first thread groove, the other end of which is provided with a connecting frame (307), the connecting frame (307) being provided with a permanent magnet two (308), and one end of which is transmission-connected to an output end of a motor.

7. The device for detecting a head used in injection molding according to claim 6, characterized in that: A sleeve rod 3 (303) is rotatably sleeved on the outer circumference of the sleeve rod 4 (304), a sleeve rod 2 (302) is rotatably sleeved on the outer circumference of the sleeve rod 3 (303), and a sleeve rod 1 (301) is rotatably sleeved on the outer circumference of the sleeve rod 2 (302). The sleeve rod 3 (303), the sleeve rod 2 (302) and the sleeve rod 1 (301) are respectively provided with a first thread groove, a second thread groove and a third thread groove near one end of the motor. The sleeve rod 4 (304), the sleeve rod 3 (303) and the sleeve rod 2 (302) are all provided with a limit block (306) near one end of the motor. The limit blocks (306) on the sleeve rod 4 (304), the sleeve rod 3 (303) and the sleeve rod 2 (302) extend into the first thread groove, the second thread groove and the third thread groove in sequence and are slidably connected to the sleeve rod 3 (303), the sleeve rod 2 (302) and the sleeve rod 1 (301).

8. The device for detecting end caps used in injection molding according to claim 7, characterized in that: When the connecting frame (307) rotates multiple times to the farthest distance through the segmented driving parts in the segmented driving mechanism (300), the connecting frame (307) and the permanent magnet one (209) are in a coaxial distribution state, and a certain distance is left between the connecting frame (307) and the permanent magnet one (209).

9. The device for detecting a head used in injection molding according to claim 8, characterized in that: A multi-channel air vent is provided in the sleeve rod four (304); an air outlet is provided at one end of the sleeve rod four (304) passing through the connecting frame (307); an air baffle plate for cooperating with the sealing head to form a closed space is provided on the end of the sleeve rod four (304) passing through the connecting frame (307); the multi-channel air vent is used to inject air into the closed space formed by the air baffle plate and the sealing head.

10. The device for detecting end caps used in injection molding according to claim 4, characterized in that: The positioning protrusion (208) is a U-shaped structure, and an anti-slip pad is provided on the peripheral surface of the positioning protrusion (208).

Images