51results about How to "Easy core pulling" patented technology

The invention discloses a reducing coupling injection mold core-pulling mechanism which comprises a movable mold base plate and a movable template, wherein a movable mold insert is arranged on the movable template; a secondary internal core-pulling mechanism is arranged on the movable template; floating core-pulling mechanisms are arranged on the movable mold base plate, the movable template and the movable mold insert; according to the secondary internal core-pulling mechanism, an inner inclined sliding surface is formed in a core-pulling small slide block connected in front of a main mold core; an outer inclined sliding surface formed on a sliding rod arranged in the main mold core is matched with the inner inclined sliding surface; a fixing plate is arranged in a mounting groove formed in the rear end of a connecting seat behind the main mold core and is fixed together with the connecting seat through a screw; the sliding seat and the sliding rod are fixed through a bolt; according to the floating core-pulling mechanism, one end of a spring arranged in the movable template is contacted with the movable template, and the other end of the spring is contacted with the movable mold base plate; a core-pulling slide block arranged in the movable mold insert is matched with an external fastener; the core-pulling slide block is provided with a T-shaped clamping block; inclined guide slots formed in an I-shaped locking module are formed in the movable template and the movable mold insert; the upper part of the I-shaped locking module is matched with the T-shaped clamping block through the inclined guide slots; and the lower part of the I-shaped locking module and the movable mold base plate are fixed together.

The invention belongs to the technical field of light weight wallboard production and particularly discloses a core pulling process for a light weight wallboard. Core pulling of the light weight wallboard is carried out by means of a core pulling device. The process comprises the following steps: (1) threading a steel tube through a supporting pipe and placing the steel tube on the supporting pipe; (2) pushing a plunger, and stopping pushing the plunger when a supporting block is tightly attached to the inner wall of the steel tube; (3) starting a motor to drive a drawing and pulling trolley to move towards a mold, and adding raw materials for producing the light weight wallboard into the mold after the steel tube is inserted into the mold; (4) when the light weight wallboard is solidifiedand formed initially, driving the motor to move towards the opposite direction to drive the drawing and pulling trolley to be far from the mold; (5) examining whether the light weight wallboard aftercore pulling meets the quality standard or not; and (6) repeating the steps (3)-(5) when next batch of light weight wallboards is produced. By adopting the process to pull cores of the light weight wallboards, the steel tube can move linearly while rotates, and the core pulling operation is simple and convenient.

The invention discloses a buckle type connection structure of a contactor. The buckle type connection structure comprises a shell and a coil frame. Containing cavities used for mounting contacts are formed in the shell and are separated by side plates. The buckle type connection structure is characterized in that the coil frame and the shell are connected through a first buckle, the first buckle protrudes and extends on the center side plate of the shell to be a buckle, the center side plate is on the axial center line of the shell, correspondingly, a limiting groove which is matched with the center side plate is formed on the coil frame, the coil frame is inserted into the shell, the center side plate passes through the limiting groove, the center side plate buckle is hooked on the coil frame at one side of the limiting groove, and the coil frame and the shell are connected. According to the buckle type connection structure, the contactor is suitable for automatic assembly, and the production cost is reduced.

The invention discloses a core pulling mechanism of an automobile rear door handle. The core pulling mechanism comprises a product, a lower die plate, a first mold core, a second mold core, a large sliding block and an air cylinder, wherein a rectangular post is arranged on the inner side wall of the product, a groove is formed in the rectangular post in the axis direction of the rectangular post,a buckle is arranged on the top of a groove, the first mold core is used for forming the upper part of the groove, the second mold core is used for forming the lower part of the groove, a bulged block which is used for forming the buckle and protrudes from the upper surface of the first mold core is arranged on the upper surface of the first mold core, a first open groove is formed in the lower die plate, the large sliding block can be matched with the interior of the first open groove in a forward and backward sliding mode, the large sliding block is driven by the air cylinder, a first sliding block is arranged on one end, which is away from the product, of the first mold core, a second sliding block is arranged on one end, which is away from the product, of the second mold core, and oneend, which is away from the product, of the second sliding block is arranged on the large sliding block. The core pulling mechanism of the automobile rear door handle has the advantages of low cost and high efficiency.

The invention discloses a bicolor mold, which comprises an upper mold plate (1), a lower mold plate (2), a sliding block (3) and a mold mount (4), wherein the lower mold plate (2) is fixed on the mold mount (4); the upper mold plate (1) is arranged above the lower mold plate (2); a front mold push plate (5) is arranged between the upper mold plate (1) and the lower mold plate (2); the sliding block (3) is arranged on the front mold push plate (5); during demolding, the front mold push plate (5) and the upper mold plate (1) together are disconnected together with the lower mold plate (2) and the front mold push plate (5) is separated with the upper mold plate (2); a turntable is fixed on the lower surface of the mold mount (4); a guide column hole (6) is formed in the sliding block (3); a guide column (7) in sliding match with the guide column hole (6) is arranged on the upper mold plate (1). According to the bicolor mold, the cost is greatly reduced as the precision requirement of mold processing is low.

The invention relates to the technical field of pipes, in particular to a structure for relieving stress concentration of intersecting lines inside a plastic tee pipe. The structure for relieving the stress concentration of the intersecting lines inside the plastic tee pipe comprises the plastic tee pipe, the inside of the plastic tee pipe comprises a first pipe tube, a second pipe tube and a third pipe tube, the first pipe tube and the second pipe tube are arranged in left-right symmetry, the third pipe tube is arranged to be vertically upward, and circular-arc-shaped bosses are arranged at the intersecting position of the third pipe tube and the first pipe tube and the intersecting position of the third pipe tube and the second pipe tube. Compared with the method for improving the entire strength of the plastic pipe by increasing the thickness or adding ribs, a plastic pipe product manufactured by using the structure can effectively save materials and lower the production cost of the plastic pipe. Compared with an original structure, the plastic pipe manufactured by using the structure can effectively lower the degree of the stress concentration of the intersecting lines inside by more than 20%, crackles are prevented, the service life of the plastic pipe is prolonged, and safe using of the plastic pipe is guaranteed.

Mold processing is a conventional means of the existing mechanical processing, demolding is an important step of the mold processing, the existing slide-block core pulling cannot meet the requirement on pulling the core conveniently for a product with a horizontal inward concave on the inner side, secondary core pulling is needed, thus the production procedures are complicated, the processing time is wasted, the production efficiency of the product is lowered, and the processing precision of the product is low due to the incorrect location of the product after the product is restored. In order to solve the problems, the internal core pulling structure comprises a mold, a slide block and an unplugging pin, after the internal core pulling structure is used, when the core pulling is needed, the head of the unplugging pin is unplugged upwards, and the unplugging pin drives the slide block to move leftwards, so that the slide block is separated from the product; when the restoration is needed, the head of the unplugging pin is pressed down, the unplugging pin moves downwards, the slide block is driven to move rightwards, and since the position of the unplugging pin in restoration is fixed, an effect of precise location can be realized.

The invention relates to a core drawing mechanism of a bellows birthmouth injection machine. The core drawing mechanism comprises a mandrel plate, a core drawing device and a sliding frame, the mandrel plate is a rectangular plate, the central portion of the mandrel plate is provided with a mandrel positioning hole, and four corners of the mandrel plate are respectively provided with a core drawing guide pillar hole; the core drawing device is composed of four core drawing oil cylinders, four core drawing guide pillars and four core drawing locks, the core drawing oil cylinders are fixed on the core drawing guide pillar holes at the left and right sides of the front panels of the upper template and the lower template of a film locking mechanism, and the core drawing guide pillars are horizontally arranged in a sagittal mode; and the sliding frame is a rectangular frame, a frame pedestal is arranged below the sliding frame, and a slide rail is arranged between the frame pedestal and the sliding frame. The core drawing mechanism has the advantages of very convenient entry locking and drawing of the mandrel, high stability, easy product quality guarantee, and convenience for the maintenance, dismounting and mounting of a die.

The invention relates to the technical field of molds and in particular relates to a one-mold two-part injection mold. The injection mold comprises a fixed mold bottom plate, a stripper plate, a fixed mold plate, a fixed mold core, a movable mold core, a movable mold plate, square iron, an ejector retainer plate, an ejector base plate and a movable mold bottom plate, wherein a first row orientation component, a second row orientation component and a third row orientation component are arranged between the fixed mold plate and the movable mold plate; a first cavity and a second cavity are arranged on the fixed mold core in parallel; and a first core and a second core which are correspondingly molded with the first cavity and the second cavity are respectively arranged on the movable mold core in parallel. According to the one-mold two-part injection mold, two injection parts which are similar in shape structure and are assembled in a matched mode are simultaneously molded, so that the colors and textures of the two injection parts can be consistent as far as possible.

The invention relates to a manufacturing method of a pure quartz glass hollow cylinder. The method adopts an external vapor deposition method to deposit a hollow glass cylindrical powder rod, a deposition cavity adopts a vertical target rod deposition mode, and the deposition target rod is a high-temperature-resistant and oxidation-resistant ceramic, alloy or a composite deposition target rod which takes alloy as a substrate and is coated with a ceramic layer. The surface of the deposition target rod keeps a certain roughness, and a blowtorch assembly is connected with a sliding seat capable of moving up and down and back and forth.During deposition, an upper rotating chuck and a lower rotating chuck drive the deposition target rod to rotate, the blowtorch assembly is started to spray deposition powder to the deposition target rod and move up and down in the direction parallel to the axis of the deposition target rod, a suction opening is opened, the temperature difference of the heated area of the whole deposition target rod is controlled within 350 DEG C, and after deposition is completed and cooling is conducted, the target rod is pulled out of the powder preform rod and sintered into the transparent pure silicon dioxide quartz glass hollow cylinder. The deposition forming quality of the powder rod is guaranteed, the processing stability is enhanced, the process is simplified, and the processing cost is reduced.

The invention discloses an internal thread forming injection mold which comprises an upper mold set and a lower mold set. A thread forming part comprises a plurality of forming blocks which are spliced in the circumferential direction and a big-end-down wedge-shaped core body, a big-end-down wedge-shaped through hole is formed among the forming blocks, the wedge-shaped core body is arranged in the wedge-shaped through hole in a penetrating mode, and the forming blocks are driven to synchronously expand and contract in the radial direction when the wedge-shaped core body moves up and down. The outer side faces of all the forming blocks are spliced to form a circumferential face, and forming threads are arranged on the circumferential face. The lower mold set comprises a lower mold block and a lower mold backup plate, and the lower mold backup plate is arranged below the lower mold block and can move up and down relative to the lower mold block. A vertically-through mounting through hole is formed in the lower mold block, the lower portion of the thread forming part is located in the mounting through hole, and the lower end of the wedge-shaped core body is fixedly connected with the lower mold backup plate. The structure of the internal thread forming injection mold is optimized in design, the structure is simplified and reasonable, the number of parts is small, the manufacturing cost is low, core pulling of the internal thread part is facilitated, and good practicability is achieved.

The invention discloses a driving structure based on an eccentric shaft. The driving structure comprises a base body with an inner cavity, a driven part movably assembled in the inner cavity and an eccentric shaft in linkage fit with the driven part, the eccentric shaft comprises a first rotating shaft part and a second rotating shaft part which are coaxially arranged, an eccentric shaft part which is arranged between the first rotating shaft part and the second rotating shaft part and eccentrically arranged is further included, the diameter of the first rotating shaft part is larger than thediameter of the second rotating shaft part, a first shaft hole penetrating through the interior and the exterior is formed in the side wall of one side of the inner cavity of the base body, a second shaft hole is formed in the position, opposite to the first shaft hole position, of the other side wall of the inner cavity, the diameter of the first shaft hole is larger than that of the second shafthole, the first rotating shaft part is rotatably matched with the first shaft hole, the second rotating shaft part is rotatably matched with the second shaft hole, and the eccentric shaft part is inlinkage fit with the driven part. The base body forming of the driving structure is easier, the production cost is effectively reduced, the eccentric shaft and the base body can be more easily mounted, and the assembling efficiency can be greatly improved.